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<td width="35%" class="headerValue"><a href="../index.html">top level</a> - <a href="index.html">src</a> - strace.c<span style="font-size: 80%;"> (source / <a href="strace.c.func-sort-c.html">functions</a>)</span></td>
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<td width="10%" class="headerCovTableHead">Hit</td>
<td width="10%" class="headerCovTableHead">Total</td>
<td width="15%" class="headerCovTableHead">Coverage</td>
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<td class="headerItem">Test:</td>
<td class="headerValue">strace-5.15.0.11.7c5c-dirty</td>
<td></td>
<td class="headerItem">Lines:</td>
<td class="headerCovTableEntry">1468</td>
<td class="headerCovTableEntry">1632</td>
<td class="headerCovTableEntryMed">89.95 %</td>
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<td class="headerItem">Date:</td>
<td class="headerValue">2021-12-29 11:55:56</td>
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<td class="headerItem">Functions:</td>
<td class="headerCovTableEntry">73</td>
<td class="headerCovTableEntry">74</td>
<td class="headerCovTableEntryHi">98.65 %</td>
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<td class="headerItem">Legend:</td>
<td class="headerValueLeg"> Lines:
<span class="coverLegendCov">hit</span>
<span class="coverLegendNoCov">not hit</span>
| Branches:
<span class="coverLegendCov">+</span> taken
<span class="coverLegendNoCov">-</span> not taken
<span class="coverLegendNoCov">#</span> not executed
</td>
<td></td>
<td class="headerItem">Branches:</td>
<td class="headerCovTableEntry">887</td>
<td class="headerCovTableEntry">1132</td>
<td class="headerCovTableEntryMed">78.36 %</td>
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<pre class="sourceHeading"> Branch data Line data Source code</pre>
<pre class="source">
<a name="1"><span class="lineNum"> 1 </span> : : /*</a>
<a name="2"><span class="lineNum"> 2 </span> : : * Copyright (c) 1991, 1992 Paul Kranenburg <pk@cs.few.eur.nl></a>
<a name="3"><span class="lineNum"> 3 </span> : : * Copyright (c) 1993 Branko Lankester <branko@hacktic.nl></a>
<a name="4"><span class="lineNum"> 4 </span> : : * Copyright (c) 1993, 1994, 1995, 1996 Rick Sladkey <jrs@world.std.com></a>
<a name="5"><span class="lineNum"> 5 </span> : : * Copyright (c) 1996-1999 Wichert Akkerman <wichert@cistron.nl></a>
<a name="6"><span class="lineNum"> 6 </span> : : * Copyright (c) 1999-2021 The strace developers.</a>
<a name="7"><span class="lineNum"> 7 </span> : : * All rights reserved.</a>
<a name="8"><span class="lineNum"> 8 </span> : : *</a>
<a name="9"><span class="lineNum"> 9 </span> : : * SPDX-License-Identifier: LGPL-2.1-or-later</a>
<a name="10"><span class="lineNum"> 10 </span> : : */</a>
<a name="11"><span class="lineNum"> 11 </span> : : </a>
<a name="12"><span class="lineNum"> 12 </span> : : #include "defs.h"</a>
<a name="13"><span class="lineNum"> 13 </span> : : #include <stdarg.h></a>
<a name="14"><span class="lineNum"> 14 </span> : : #include <limits.h></a>
<a name="15"><span class="lineNum"> 15 </span> : : #include <fcntl.h></a>
<a name="16"><span class="lineNum"> 16 </span> : : #include "ptrace.h"</a>
<a name="17"><span class="lineNum"> 17 </span> : : #include <signal.h></a>
<a name="18"><span class="lineNum"> 18 </span> : : #include <sys/resource.h></a>
<a name="19"><span class="lineNum"> 19 </span> : : #include <sys/stat.h></a>
<a name="20"><span class="lineNum"> 20 </span> : : #ifdef HAVE_PATHS_H</a>
<a name="21"><span class="lineNum"> 21 </span> : : # include <paths.h></a>
<a name="22"><span class="lineNum"> 22 </span> : : #endif</a>
<a name="23"><span class="lineNum"> 23 </span> : : #include <getopt.h></a>
<a name="24"><span class="lineNum"> 24 </span> : : #include <pwd.h></a>
<a name="25"><span class="lineNum"> 25 </span> : : #include <grp.h></a>
<a name="26"><span class="lineNum"> 26 </span> : : #include <dirent.h></a>
<a name="27"><span class="lineNum"> 27 </span> : : #include <locale.h></a>
<a name="28"><span class="lineNum"> 28 </span> : : #include <sys/utsname.h></a>
<a name="29"><span class="lineNum"> 29 </span> : : #include <sys/prctl.h></a>
<a name="30"><span class="lineNum"> 30 </span> : : </a>
<a name="31"><span class="lineNum"> 31 </span> : : #include "kill_save_errno.h"</a>
<a name="32"><span class="lineNum"> 32 </span> : : #include "filter_seccomp.h"</a>
<a name="33"><span class="lineNum"> 33 </span> : : #include "largefile_wrappers.h"</a>
<a name="34"><span class="lineNum"> 34 </span> : : #include "mmap_cache.h"</a>
<a name="35"><span class="lineNum"> 35 </span> : : #include "number_set.h"</a>
<a name="36"><span class="lineNum"> 36 </span> : : #include "ptrace_syscall_info.h"</a>
<a name="37"><span class="lineNum"> 37 </span> : : #include "scno.h"</a>
<a name="38"><span class="lineNum"> 38 </span> : : #include "printsiginfo.h"</a>
<a name="39"><span class="lineNum"> 39 </span> : : #include "trace_event.h"</a>
<a name="40"><span class="lineNum"> 40 </span> : : #include "xstring.h"</a>
<a name="41"><span class="lineNum"> 41 </span> : : #include "delay.h"</a>
<a name="42"><span class="lineNum"> 42 </span> : : #include "wait.h"</a>
<a name="43"><span class="lineNum"> 43 </span> : : #include "secontext.h"</a>
<a name="44"><span class="lineNum"> 44 </span> : : </a>
<a name="45"><span class="lineNum"> 45 </span> : : /* In some libc, these aren't declared. Do it ourself: */</a>
<a name="46"><span class="lineNum"> 46 </span> : : extern char **environ;</a>
<a name="47"><span class="lineNum"> 47 </span> : : extern int optind;</a>
<a name="48"><span class="lineNum"> 48 </span> : : extern char *optarg;</a>
<a name="49"><span class="lineNum"> 49 </span> : : </a>
<a name="50"><span class="lineNum"> 50 </span> : : #ifdef ENABLE_STACKTRACE</a>
<a name="51"><span class="lineNum"> 51 </span> : : /* if this is true do the stack trace for every system call */</a>
<a name="52"><span class="lineNum"> 52 </span> : : bool stack_trace_enabled;</a>
<a name="53"><span class="lineNum"> 53 </span> : : #endif</a>
<a name="54"><span class="lineNum"> 54 </span> : : </a>
<a name="55"><span class="lineNum"> 55 </span> : : #define my_tkill(tid, sig) syscall(__NR_tkill, (tid), (sig))</a>
<a name="56"><span class="lineNum"> 56 </span> : : </a>
<a name="57"><span class="lineNum"> 57 </span> : : /* Glue for systems without a MMU that cannot provide fork() */</a>
<a name="58"><span class="lineNum"> 58 </span> : : #if !defined(HAVE_FORK)</a>
<a name="59"><span class="lineNum"> 59 </span> : : # undef NOMMU_SYSTEM</a>
<a name="60"><span class="lineNum"> 60 </span> : : # define NOMMU_SYSTEM 1</a>
<a name="61"><span class="lineNum"> 61 </span> : : #endif</a>
<a name="62"><span class="lineNum"> 62 </span> : : #if NOMMU_SYSTEM</a>
<a name="63"><span class="lineNum"> 63 </span> : : # define fork() vfork()</a>
<a name="64"><span class="lineNum"> 64 </span> : : #endif</a>
<a name="65"><span class="lineNum"> 65 </span> : : </a>
<a name="66"><span class="lineNum"> 66 </span> : : const unsigned int syscall_trap_sig = SIGTRAP | 0x80;</a>
<a name="67"><span class="lineNum"> 67 </span> : : </a>
<a name="68"><span class="lineNum"> 68 </span> : : cflag_t cflag = CFLAG_NONE;</a>
<a name="69"><span class="lineNum"> 69 </span> : : bool followfork;</a>
<a name="70"><span class="lineNum"> 70 </span> : : bool output_separately;</a>
<a name="71"><span class="lineNum"> 71 </span> : : unsigned int ptrace_setoptions = PTRACE_O_TRACESYSGOOD | PTRACE_O_TRACEEXEC</a>
<a name="72"><span class="lineNum"> 72 </span> : : | PTRACE_O_TRACEEXIT;</a>
<a name="73"><span class="lineNum"> 73 </span> : : static struct xlat_data xflag_str[] = {</a>
<a name="74"><span class="lineNum"> 74 </span> : : { HEXSTR_NONE, "none" },</a>
<a name="75"><span class="lineNum"> 75 </span> : : { HEXSTR_NON_ASCII_CHARS, "non-ascii-chars" },</a>
<a name="76"><span class="lineNum"> 76 </span> : : { HEXSTR_NON_ASCII, "non-ascii" },</a>
<a name="77"><span class="lineNum"> 77 </span> : : { HEXSTR_ALL, "all" },</a>
<a name="78"><span class="lineNum"> 78 </span> : : };</a>
<a name="79"><span class="lineNum"> 79 </span> : : unsigned int xflag;</a>
<a name="80"><span class="lineNum"> 80 </span> : : bool debug_flag;</a>
<a name="81"><span class="lineNum"> 81 </span> : : bool Tflag;</a>
<a name="82"><span class="lineNum"> 82 </span> : : int Tflag_scale = 1000;</a>
<a name="83"><span class="lineNum"> 83 </span> : : int Tflag_width = 6;</a>
<a name="84"><span class="lineNum"> 84 </span> : : bool iflag;</a>
<a name="85"><span class="lineNum"> 85 </span> : : bool nflag;</a>
<a name="86"><span class="lineNum"> 86 </span> : : bool count_wallclock;</a>
<a name="87"><span class="lineNum"> 87 </span> : : static int tflag_scale = 1000000000;</a>
<a name="88"><span class="lineNum"> 88 </span> : : static unsigned tflag_width = 0;</a>
<a name="89"><span class="lineNum"> 89 </span> : : static const char *tflag_format = NULL;</a>
<a name="90"><span class="lineNum"> 90 </span> : : static bool rflag;</a>
<a name="91"><span class="lineNum"> 91 </span> : : static int rflag_scale = 1000;</a>
<a name="92"><span class="lineNum"> 92 </span> : : static int rflag_width = 6;</a>
<a name="93"><span class="lineNum"> 93 </span> : : static bool print_pid_pfx;</a>
<a name="94"><span class="lineNum"> 94 </span> : : </a>
<a name="95"><span class="lineNum"> 95 </span> : : /* -I n */</a>
<a name="96"><span class="lineNum"> 96 </span> : : enum {</a>
<a name="97"><span class="lineNum"> 97 </span> : : INTR_NOT_SET = 0,</a>
<a name="98"><span class="lineNum"> 98 </span> : : INTR_ANYWHERE = 1, /* don't block/ignore any signals */</a>
<a name="99"><span class="lineNum"> 99 </span> : : INTR_WHILE_WAIT = 2, /* block fatal signals while decoding syscall. default */</a>
<a name="100"><span class="lineNum"> 100 </span> : : INTR_NEVER = 3, /* block fatal signals. default if '-o FILE PROG' */</a>
<a name="101"><span class="lineNum"> 101 </span> : : INTR_BLOCK_TSTP_TOO = 4, /* block fatal signals and SIGTSTP (^Z); default if -D */</a>
<a name="102"><span class="lineNum"> 102 </span> : : NUM_INTR_OPTS</a>
<a name="103"><span class="lineNum"> 103 </span> : : };</a>
<a name="104"><span class="lineNum"> 104 </span> : : static int opt_intr;</a>
<a name="105"><span class="lineNum"> 105 </span> : : /* We play with signal mask only if this mode is active: */</a>
<a name="106"><span class="lineNum"> 106 </span> : : #define interactive (opt_intr == INTR_WHILE_WAIT)</a>
<a name="107"><span class="lineNum"> 107 </span> : : </a>
<a name="108"><span class="lineNum"> 108 </span> : : enum {</a>
<a name="109"><span class="lineNum"> 109 </span> : : DAEMONIZE_NONE = 0,</a>
<a name="110"><span class="lineNum"> 110 </span> : : DAEMONIZE_GRANDCHILD = 1,</a>
<a name="111"><span class="lineNum"> 111 </span> : : DAEMONIZE_NEW_PGROUP = 2,</a>
<a name="112"><span class="lineNum"> 112 </span> : : DAEMONIZE_NEW_SESSION = 3,</a>
<a name="113"><span class="lineNum"> 113 </span> : : </a>
<a name="114"><span class="lineNum"> 114 </span> : : DAEMONIZE_OPTS_GUARD__,</a>
<a name="115"><span class="lineNum"> 115 </span> : : MAX_DAEMONIZE_OPTS = DAEMONIZE_OPTS_GUARD__ - 1</a>
<a name="116"><span class="lineNum"> 116 </span> : : };</a>
<a name="117"><span class="lineNum"> 117 </span> : : static struct xlat_data daemonize_str[] = {</a>
<a name="118"><span class="lineNum"> 118 </span> : : { DAEMONIZE_GRANDCHILD, "grandchild" },</a>
<a name="119"><span class="lineNum"> 119 </span> : : { DAEMONIZE_NEW_PGROUP, "pgroup" },</a>
<a name="120"><span class="lineNum"> 120 </span> : : { DAEMONIZE_NEW_PGROUP, "pgrp" },</a>
<a name="121"><span class="lineNum"> 121 </span> : : { DAEMONIZE_NEW_SESSION, "session" },</a>
<a name="122"><span class="lineNum"> 122 </span> : : };</a>
<a name="123"><span class="lineNum"> 123 </span> : : /*</a>
<a name="124"><span class="lineNum"> 124 </span> : : * daemonized_tracer supports -D option.</a>
<a name="125"><span class="lineNum"> 125 </span> : : * With this option, strace forks twice.</a>
<a name="126"><span class="lineNum"> 126 </span> : : * Unlike normal case, with -D *grandparent* process exec's,</a>
<a name="127"><span class="lineNum"> 127 </span> : : * becoming a traced process. Child exits (this prevents traced process</a>
<a name="128"><span class="lineNum"> 128 </span> : : * from having children it doesn't expect to have), and grandchild</a>
<a name="129"><span class="lineNum"> 129 </span> : : * attaches to grandparent similarly to strace -p PID.</a>
<a name="130"><span class="lineNum"> 130 </span> : : * This allows for more transparent interaction in cases</a>
<a name="131"><span class="lineNum"> 131 </span> : : * when process and its parent are communicating via signals,</a>
<a name="132"><span class="lineNum"> 132 </span> : : * wait() etc. Without -D, strace process gets lodged in between,</a>
<a name="133"><span class="lineNum"> 133 </span> : : * disrupting parent<->child link.</a>
<a name="134"><span class="lineNum"> 134 </span> : : */</a>
<a name="135"><span class="lineNum"> 135 </span> : : static unsigned int daemonized_tracer;</a>
<a name="136"><span class="lineNum"> 136 </span> : : </a>
<a name="137"><span class="lineNum"> 137 </span> : : static int post_attach_sigstop = TCB_IGNORE_ONE_SIGSTOP;</a>
<a name="138"><span class="lineNum"> 138 </span> : : #define use_seize (post_attach_sigstop == 0)</a>
<a name="139"><span class="lineNum"> 139 </span> : : </a>
<a name="140"><span class="lineNum"> 140 </span> : : static bool detach_on_execve;</a>
<a name="141"><span class="lineNum"> 141 </span> : : </a>
<a name="142"><span class="lineNum"> 142 </span> : : static int exit_code;</a>
<a name="143"><span class="lineNum"> 143 </span> : : static int strace_child;</a>
<a name="144"><span class="lineNum"> 144 </span> : : static int strace_tracer_pid;</a>
<a name="145"><span class="lineNum"> 145 </span> : : </a>
<a name="146"><span class="lineNum"> 146 </span> : : static const char *username;</a>
<a name="147"><span class="lineNum"> 147 </span> : : static uid_t run_uid;</a>
<a name="148"><span class="lineNum"> 148 </span> : : static gid_t run_gid;</a>
<a name="149"><span class="lineNum"> 149 </span> : : </a>
<a name="150"><span class="lineNum"> 150 </span> : : unsigned int max_strlen = DEFAULT_STRLEN;</a>
<a name="151"><span class="lineNum"> 151 </span> : : static int acolumn = DEFAULT_ACOLUMN;</a>
<a name="152"><span class="lineNum"> 152 </span> : : static char *acolumn_spaces;</a>
<a name="153"><span class="lineNum"> 153 </span> : : </a>
<a name="154"><span class="lineNum"> 154 </span> : : /* Default output style for xlat entities */</a>
<a name="155"><span class="lineNum"> 155 </span> : : enum xlat_style xlat_verbosity = XLAT_STYLE_ABBREV;</a>
<a name="156"><span class="lineNum"> 156 </span> : : </a>
<a name="157"><span class="lineNum"> 157 </span> : : static const char *outfname;</a>
<a name="158"><span class="lineNum"> 158 </span> : : /* If -ff, points to stderr. Else, it's our common output log */</a>
<a name="159"><span class="lineNum"> 159 </span> : : static FILE *shared_log;</a>
<a name="160"><span class="lineNum"> 160 </span> : : static bool open_append;</a>
<a name="161"><span class="lineNum"> 161 </span> : : </a>
<a name="162"><span class="lineNum"> 162 </span> : : struct tcb *printing_tcp;</a>
<a name="163"><span class="lineNum"> 163 </span> : : static struct tcb *current_tcp;</a>
<a name="164"><span class="lineNum"> 164 </span> : : </a>
<a name="165"><span class="lineNum"> 165 </span> : : struct tcb_wait_data {</a>
<a name="166"><span class="lineNum"> 166 </span> : : enum trace_event te; /**< Event passed to dispatch_event() */</a>
<a name="167"><span class="lineNum"> 167 </span> : : int status; /**< status, returned by wait4() */</a>
<a name="168"><span class="lineNum"> 168 </span> : : unsigned long msg; /**< Value returned by PTRACE_GETEVENTMSG */</a>
<a name="169"><span class="lineNum"> 169 </span> : : siginfo_t si; /**< siginfo, returned by PTRACE_GETSIGINFO */</a>
<a name="170"><span class="lineNum"> 170 </span> : : };</a>
<a name="171"><span class="lineNum"> 171 </span> : : </a>
<a name="172"><span class="lineNum"> 172 </span> : : static struct tcb **tcbtab;</a>
<a name="173"><span class="lineNum"> 173 </span> : : static unsigned int nprocs;</a>
<a name="174"><span class="lineNum"> 174 </span> : : static size_t tcbtabsize;</a>
<a name="175"><span class="lineNum"> 175 </span> : : </a>
<a name="176"><span class="lineNum"> 176 </span> : : static struct tcb_wait_data *tcb_wait_tab;</a>
<a name="177"><span class="lineNum"> 177 </span> : : static size_t tcb_wait_tab_size;</a>
<a name="178"><span class="lineNum"> 178 </span> : : </a>
<a name="179"><span class="lineNum"> 179 </span> : : </a>
<a name="180"><span class="lineNum"> 180 </span> : : #ifndef HAVE_PROGRAM_INVOCATION_NAME</a>
<a name="181"><span class="lineNum"> 181 </span> : : char *program_invocation_name;</a>
<a name="182"><span class="lineNum"> 182 </span> : : #endif</a>
<a name="183"><span class="lineNum"> 183 </span> : : </a>
<a name="184"><span class="lineNum"> 184 </span> : : unsigned os_release; /* generated from uname()'s u.release */</a>
<a name="185"><span class="lineNum"> 185 </span> : : </a>
<a name="186"><span class="lineNum"> 186 </span> : : static void detach(struct tcb *tcp);</a>
<a name="187"><span class="lineNum"> 187 </span> : : static void cleanup(int sig);</a>
<a name="188"><span class="lineNum"> 188 </span> : : static void interrupt(int sig);</a>
<a name="189"><span class="lineNum"> 189 </span> : : </a>
<a name="190"><span class="lineNum"> 190 </span> : : #ifdef HAVE_SIG_ATOMIC_T</a>
<a name="191"><span class="lineNum"> 191 </span> : : static volatile sig_atomic_t interrupted, restart_failed;</a>
<a name="192"><span class="lineNum"> 192 </span> : : #else</a>
<a name="193"><span class="lineNum"> 193 </span> : : static volatile int interrupted, restart_failed;</a>
<a name="194"><span class="lineNum"> 194 </span> : : #endif</a>
<a name="195"><span class="lineNum"> 195 </span> : : </a>
<a name="196"><span class="lineNum"> 196 </span> : : static sigset_t timer_set;</a>
<a name="197"><span class="lineNum"> 197 </span> : : static void timer_sighandler(int);</a>
<a name="198"><span class="lineNum"> 198 </span> : : </a>
<a name="199"><span class="lineNum"> 199 </span> : : #ifndef HAVE_STRERROR</a>
<a name="200"><span class="lineNum"> 200 </span> : : </a>
<a name="201"><span class="lineNum"> 201 </span> : : # if !HAVE_DECL_SYS_ERRLIST</a>
<a name="202"><span class="lineNum"> 202 </span> : : extern int sys_nerr;</a>
<a name="203"><span class="lineNum"> 203 </span> : : extern char *sys_errlist[];</a>
<a name="204"><span class="lineNum"> 204 </span> : : # endif</a>
<a name="205"><span class="lineNum"> 205 </span> : : </a>
<a name="206"><span class="lineNum"> 206 </span> : : const char *</a>
<a name="207"><span class="lineNum"> 207 </span> : : strerror(int err_no)</a>
<a name="208"><span class="lineNum"> 208 </span> : : {</a>
<a name="209"><span class="lineNum"> 209 </span> : : static char buf[sizeof("Unknown error %d") + sizeof(int)*3];</a>
<a name="210"><span class="lineNum"> 210 </span> : : </a>
<a name="211"><span class="lineNum"> 211 </span> : : if (err_no < 1 || err_no >= sys_nerr) {</a>
<a name="212"><span class="lineNum"> 212 </span> : : xsprintf(buf, "Unknown error %d", err_no);</a>
<a name="213"><span class="lineNum"> 213 </span> : : return buf;</a>
<a name="214"><span class="lineNum"> 214 </span> : : }</a>
<a name="215"><span class="lineNum"> 215 </span> : : return sys_errlist[err_no];</a>
<a name="216"><span class="lineNum"> 216 </span> : : }</a>
<a name="217"><span class="lineNum"> 217 </span> : : </a>
<a name="218"><span class="lineNum"> 218 </span> : : #endif /* HAVE_STERRROR */</a>
<a name="219"><span class="lineNum"> 219 </span> : : </a>
<a name="220"><span class="lineNum"> 220 </span> : : static void</a>
<a name="221"><span class="lineNum"> 221 </span> :<span class="lineCov"> 1182 : print_version(void)</span></a>
<a name="222"><span class="lineNum"> 222 </span> : : {</a>
<a name="223"><span class="lineNum"> 223 </span> :<span class="lineCov"> 1182 : static const char features[] =</span></a>
<a name="224"><span class="lineNum"> 224 </span> : : #ifdef ENABLE_STACKTRACE</a>
<a name="225"><span class="lineNum"> 225 </span> : : " stack-trace=" USE_UNWINDER</a>
<a name="226"><span class="lineNum"> 226 </span> : : #endif</a>
<a name="227"><span class="lineNum"> 227 </span> : : #ifdef USE_DEMANGLE</a>
<a name="228"><span class="lineNum"> 228 </span> : : " stack-demangle"</a>
<a name="229"><span class="lineNum"> 229 </span> : : #endif</a>
<a name="230"><span class="lineNum"> 230 </span> : : #if SUPPORTED_PERSONALITIES > 1</a>
<a name="231"><span class="lineNum"> 231 </span> : : # if defined HAVE_M32_MPERS</a>
<a name="232"><span class="lineNum"> 232 </span> : : " m32-mpers"</a>
<a name="233"><span class="lineNum"> 233 </span> : : # else</a>
<a name="234"><span class="lineNum"> 234 </span> : : " no-m32-mpers"</a>
<a name="235"><span class="lineNum"> 235 </span> : : # endif</a>
<a name="236"><span class="lineNum"> 236 </span> : : #endif /* SUPPORTED_PERSONALITIES > 1 */</a>
<a name="237"><span class="lineNum"> 237 </span> : : #if SUPPORTED_PERSONALITIES > 2</a>
<a name="238"><span class="lineNum"> 238 </span> : : # if defined HAVE_MX32_MPERS</a>
<a name="239"><span class="lineNum"> 239 </span> : : " mx32-mpers"</a>
<a name="240"><span class="lineNum"> 240 </span> : : # else</a>
<a name="241"><span class="lineNum"> 241 </span> : : " no-mx32-mpers"</a>
<a name="242"><span class="lineNum"> 242 </span> : : # endif</a>
<a name="243"><span class="lineNum"> 243 </span> : : #endif /* SUPPORTED_PERSONALITIES > 2 */</a>
<a name="244"><span class="lineNum"> 244 </span> : : #ifdef ENABLE_SECONTEXT</a>
<a name="245"><span class="lineNum"> 245 </span> : : " secontext"</a>
<a name="246"><span class="lineNum"> 246 </span> : : #endif</a>
<a name="247"><span class="lineNum"> 247 </span> : : "";</a>
<a name="248"><span class="lineNum"> 248 </span> : : </a>
<a name="249"><span class="lineNum"> 249 </span> :<span class="lineCov"> 1182 : printf("%s -- version %s\n"</span></a>
<a name="250"><span class="lineNum"> 250 </span> : : "Copyright (c) 1991-%s The strace developers <%s>.\n"</a>
<a name="251"><span class="lineNum"> 251 </span> : : "This is free software; see the source for copying conditions. There is NO\n"</a>
<a name="252"><span class="lineNum"> 252 </span> : : "warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n",</a>
<a name="253"><span class="lineNum"> 253 </span> : : PACKAGE_NAME, PACKAGE_VERSION, COPYRIGHT_YEAR, PACKAGE_URL);</a>
<a name="254"><span class="lineNum"> 254 </span> :<span class="lineCov"> 1182 : printf("\nOptional features enabled:%s\n",</span></a>
<a name="255"><span class="lineNum"> 255 </span> : : features[0] ? features : " (none)");</a>
<a name="256"><span class="lineNum"> 256 </span> :<span class="lineCov"> 1182 : }</span></a>
<a name="257"><span class="lineNum"> 257 </span> : : </a>
<a name="258"><span class="lineNum"> 258 </span> : : static void</a>
<a name="259"><span class="lineNum"> 259 </span> :<span class="lineCov"> 16 : usage(void)</span></a>
<a name="260"><span class="lineNum"> 260 </span> : : {</a>
<a name="261"><span class="lineNum"> 261 </span> : : #ifdef ENABLE_STACKTRACE</a>
<a name="262"><span class="lineNum"> 262 </span> : : # define K_OPT "k"</a>
<a name="263"><span class="lineNum"> 263 </span> : : #else</a>
<a name="264"><span class="lineNum"> 264 </span> : : # define K_OPT ""</a>
<a name="265"><span class="lineNum"> 265 </span> : : #endif</a>
<a name="266"><span class="lineNum"> 266 </span> : : #ifdef ENABLE_SECONTEXT</a>
<a name="267"><span class="lineNum"> 267 </span> : : # define SECONTEXT_OPT " [--secontext[=FORMAT]]\n"</a>
<a name="268"><span class="lineNum"> 268 </span> : : # define SECONTEXT_E_QUAL ", secontext"</a>
<a name="269"><span class="lineNum"> 269 </span> : : #else</a>
<a name="270"><span class="lineNum"> 270 </span> : : # define SECONTEXT_OPT ""</a>
<a name="271"><span class="lineNum"> 271 </span> : : # define SECONTEXT_E_QUAL ""</a>
<a name="272"><span class="lineNum"> 272 </span> : : #endif</a>
<a name="273"><span class="lineNum"> 273 </span> : : </a>
<a name="274"><span class="lineNum"> 274 </span> :<span class="lineCov"> 16 : printf("\</span></a>
<a name="275"><span class="lineNum"> 275 </span> : : Usage: strace [-ACdffhi" K_OPT "qqrtttTvVwxxyyzZ] [-I N] [-b execve] [-e EXPR]...\n\</a>
<a name="276"><span class="lineNum"> 276 </span> : : [-a COLUMN] [-o FILE] [-s STRSIZE] [-X FORMAT] [-O OVERHEAD]\n\</a>
<a name="277"><span class="lineNum"> 277 </span> : : [-S SORTBY] [-P PATH]... [-p PID]... [-U COLUMNS] [--seccomp-bpf]\n"\</a>
<a name="278"><span class="lineNum"> 278 </span> : : SECONTEXT_OPT "\</a>
<a name="279"><span class="lineNum"> 279 </span> : : { -p PID | [-DDD] [-E VAR=VAL]... [-u USERNAME] PROG [ARGS] }\n\</a>
<a name="280"><span class="lineNum"> 280 </span> : : or: strace -c[dfwzZ] [-I N] [-b execve] [-e EXPR]... [-O OVERHEAD]\n\</a>
<a name="281"><span class="lineNum"> 281 </span> : : [-S SORTBY] [-P PATH]... [-p PID]... [-U COLUMNS] [--seccomp-bpf]\n\</a>
<a name="282"><span class="lineNum"> 282 </span> : : { -p PID | [-DDD] [-E VAR=VAL]... [-u USERNAME] PROG [ARGS] }\n\</a>
<a name="283"><span class="lineNum"> 283 </span> : : \n\</a>
<a name="284"><span class="lineNum"> 284 </span> : : General:\n\</a>
<a name="285"><span class="lineNum"> 285 </span> : : -e EXPR a qualifying expression: OPTION=[!]all or OPTION=[!]VAL1[,VAL2]...\n\</a>
<a name="286"><span class="lineNum"> 286 </span> : : options: trace, abbrev, verbose, raw, signal, read, write, fault,\n\</a>
<a name="287"><span class="lineNum"> 287 </span> : : inject, status, quiet, kvm, decode-fds" SECONTEXT_E_QUAL "\n\</a>
<a name="288"><span class="lineNum"> 288 </span> : : \n\</a>
<a name="289"><span class="lineNum"> 289 </span> : : Startup:\n\</a>
<a name="290"><span class="lineNum"> 290 </span> : : -E VAR=VAL, --env=VAR=VAL\n\</a>
<a name="291"><span class="lineNum"> 291 </span> : : put VAR=VAL in the environment for command\n\</a>
<a name="292"><span class="lineNum"> 292 </span> : : -E VAR, --env=VAR\n\</a>
<a name="293"><span class="lineNum"> 293 </span> : : remove VAR from the environment for command\n\</a>
<a name="294"><span class="lineNum"> 294 </span> : : -p PID, --attach=PID\n\</a>
<a name="295"><span class="lineNum"> 295 </span> : : trace process with process id PID, may be repeated\n\</a>
<a name="296"><span class="lineNum"> 296 </span> : : -u USERNAME, --user=USERNAME\n\</a>
<a name="297"><span class="lineNum"> 297 </span> : : run command as USERNAME handling setuid and/or setgid\n\</a>
<a name="298"><span class="lineNum"> 298 </span> : : \n\</a>
<a name="299"><span class="lineNum"> 299 </span> : : Tracing:\n\</a>
<a name="300"><span class="lineNum"> 300 </span> : : -b execve, --detach-on=execve\n\</a>
<a name="301"><span class="lineNum"> 301 </span> : : detach on execve syscall\n\</a>
<a name="302"><span class="lineNum"> 302 </span> : : -D, --daemonize[=grandchild]\n\</a>
<a name="303"><span class="lineNum"> 303 </span> : : run tracer process as a grandchild, not as a parent\n\</a>
<a name="304"><span class="lineNum"> 304 </span> : : -DD, --daemonize=pgroup\n\</a>
<a name="305"><span class="lineNum"> 305 </span> : : run tracer process in a separate process group\n\</a>
<a name="306"><span class="lineNum"> 306 </span> : : -DDD, --daemonize=session\n\</a>
<a name="307"><span class="lineNum"> 307 </span> : : run tracer process in a separate session\n\</a>
<a name="308"><span class="lineNum"> 308 </span> : : -f, --follow-forks\n\</a>
<a name="309"><span class="lineNum"> 309 </span> : : follow forks\n\</a>
<a name="310"><span class="lineNum"> 310 </span> : : -ff, --follow-forks --output-separately\n\</a>
<a name="311"><span class="lineNum"> 311 </span> : : follow forks with output into separate files\n\</a>
<a name="312"><span class="lineNum"> 312 </span> : : -I INTERRUPTIBLE, --interruptible=INTERRUPTIBLE\n\</a>
<a name="313"><span class="lineNum"> 313 </span> : : 1, anywhere: no signals are blocked\n\</a>
<a name="314"><span class="lineNum"> 314 </span> : : 2, waiting: fatal signals are blocked while decoding syscall (default)\n\</a>
<a name="315"><span class="lineNum"> 315 </span> : : 3, never: fatal signals are always blocked (default if '-o FILE PROG')\n\</a>
<a name="316"><span class="lineNum"> 316 </span> : : 4, never_tstp: fatal signals and SIGTSTP (^Z) are always blocked\n\</a>
<a name="317"><span class="lineNum"> 317 </span> : : (useful to make 'strace -o FILE PROG' not stop on ^Z)\n\</a>
<a name="318"><span class="lineNum"> 318 </span> : : \n\</a>
<a name="319"><span class="lineNum"> 319 </span> : : Filtering:\n\</a>
<a name="320"><span class="lineNum"> 320 </span> : : -e trace=[!]{[?]SYSCALL[@64|@32|@x32]|[?]/REGEX|GROUP|all|none},\n\</a>
<a name="321"><span class="lineNum"> 321 </span> : : --trace=[!]{[?]SYSCALL[@64|@32|@x32]|[?]/REGEX|GROUP|all|none}\n\</a>
<a name="322"><span class="lineNum"> 322 </span> : : trace only specified syscalls.\n\</a>
<a name="323"><span class="lineNum"> 323 </span> : : groups: %%clock, %%creds, %%desc, %%file, %%fstat, %%fstatfs %%ipc, %%lstat,\n\</a>
<a name="324"><span class="lineNum"> 324 </span> : : %%memory, %%net, %%process, %%pure, %%signal, %%stat, %%%%stat,\n\</a>
<a name="325"><span class="lineNum"> 325 </span> : : %%statfs, %%%%statfs\n\</a>
<a name="326"><span class="lineNum"> 326 </span> : : -e signal=SET, --signal=SET\n\</a>
<a name="327"><span class="lineNum"> 327 </span> : : trace only the specified set of signals\n\</a>
<a name="328"><span class="lineNum"> 328 </span> : : print only the signals from SET\n\</a>
<a name="329"><span class="lineNum"> 329 </span> : : -e status=SET, --status=SET\n\</a>
<a name="330"><span class="lineNum"> 330 </span> : : print only system calls with the return statuses in SET\n\</a>
<a name="331"><span class="lineNum"> 331 </span> : : statuses: successful, failed, unfinished, unavailable, detached\n\</a>
<a name="332"><span class="lineNum"> 332 </span> : : -P PATH, --trace-path=PATH\n\</a>
<a name="333"><span class="lineNum"> 333 </span> : : trace accesses to PATH\n\</a>
<a name="334"><span class="lineNum"> 334 </span> : : -z, --successful-only\n\</a>
<a name="335"><span class="lineNum"> 335 </span> : : print only syscalls that returned without an error code\n\</a>
<a name="336"><span class="lineNum"> 336 </span> : : -Z, --failed-only\n\</a>
<a name="337"><span class="lineNum"> 337 </span> : : print only syscalls that returned with an error code\n\</a>
<a name="338"><span class="lineNum"> 338 </span> : : \n\</a>
<a name="339"><span class="lineNum"> 339 </span> : : Output format:\n\</a>
<a name="340"><span class="lineNum"> 340 </span> : : -a COLUMN, --columns=COLUMN\n\</a>
<a name="341"><span class="lineNum"> 341 </span> : : alignment COLUMN for printing syscall results (default %d)\n\</a>
<a name="342"><span class="lineNum"> 342 </span> : : -e abbrev=SET, --abbrev=SET\n\</a>
<a name="343"><span class="lineNum"> 343 </span> : : abbreviate output for the syscalls in SET\n\</a>
<a name="344"><span class="lineNum"> 344 </span> : : -e verbose=SET, --verbose=SET\n\</a>
<a name="345"><span class="lineNum"> 345 </span> : : dereference structures for the syscall in SET\n\</a>
<a name="346"><span class="lineNum"> 346 </span> : : -e raw=SET, --raw=SET\n\</a>
<a name="347"><span class="lineNum"> 347 </span> : : print undecoded arguments for the syscalls in SET\n\</a>
<a name="348"><span class="lineNum"> 348 </span> : : -e read=SET, --read=SET\n\</a>
<a name="349"><span class="lineNum"> 349 </span> : : dump the data read from the file descriptors in SET\n\</a>
<a name="350"><span class="lineNum"> 350 </span> : : -e write=SET, --write=SET\n\</a>
<a name="351"><span class="lineNum"> 351 </span> : : dump the data written to the file descriptors in SET\n\</a>
<a name="352"><span class="lineNum"> 352 </span> : : -e quiet=SET, --quiet=SET\n\</a>
<a name="353"><span class="lineNum"> 353 </span> : : suppress various informational messages\n\</a>
<a name="354"><span class="lineNum"> 354 </span> : : messages: attach, exit, path-resolution, personality, thread-execve\n\</a>
<a name="355"><span class="lineNum"> 355 </span> : : -e kvm=vcpu, --kvm=vcpu\n\</a>
<a name="356"><span class="lineNum"> 356 </span> : : print exit reason of kvm vcpu\n\</a>
<a name="357"><span class="lineNum"> 357 </span> : : -e decode-fds=SET, --decode-fds=SET\n\</a>
<a name="358"><span class="lineNum"> 358 </span> : : what kinds of file descriptor information details to decode\n\</a>
<a name="359"><span class="lineNum"> 359 </span> : : details: dev (device major/minor for block/char device files)\n\</a>
<a name="360"><span class="lineNum"> 360 </span> : : path (file path),\n\</a>
<a name="361"><span class="lineNum"> 361 </span> : : pidfd (associated PID for pidfds),\n\</a>
<a name="362"><span class="lineNum"> 362 </span> : : socket (protocol-specific information for socket descriptors)\n\</a>
<a name="363"><span class="lineNum"> 363 </span> : : "</a>
<a name="364"><span class="lineNum"> 364 </span> : : #ifdef ENABLE_SECONTEXT</a>
<a name="365"><span class="lineNum"> 365 </span> : : "\</a>
<a name="366"><span class="lineNum"> 366 </span> : : -e secontext=FORMAT, --secontext[=FORMAT]\n\</a>
<a name="367"><span class="lineNum"> 367 </span> : : print SELinux contexts in square brackets\n\</a>
<a name="368"><span class="lineNum"> 368 </span> : : formats: comma-separated list of all, full, mismatch, none\n\</a>
<a name="369"><span class="lineNum"> 369 </span> : : all: equivalent to full,mismatch\n\</a>
<a name="370"><span class="lineNum"> 370 </span> : : full: print the full context instead of the type only\n\</a>
<a name="371"><span class="lineNum"> 371 </span> : : mismatch: print expected context when actual is not matching\n\</a>
<a name="372"><span class="lineNum"> 372 </span> : : none: equivalent to not specifying the option at all\n\</a>
<a name="373"><span class="lineNum"> 373 </span> : : "</a>
<a name="374"><span class="lineNum"> 374 </span> : : #endif</a>
<a name="375"><span class="lineNum"> 375 </span> : : "\</a>
<a name="376"><span class="lineNum"> 376 </span> : : -i, --instruction-pointer\n\</a>
<a name="377"><span class="lineNum"> 377 </span> : : print instruction pointer at time of syscall\n\</a>
<a name="378"><span class="lineNum"> 378 </span> : : "</a>
<a name="379"><span class="lineNum"> 379 </span> : : #ifdef ENABLE_STACKTRACE</a>
<a name="380"><span class="lineNum"> 380 </span> : : "\</a>
<a name="381"><span class="lineNum"> 381 </span> : : -k, --stack-traces\n\</a>
<a name="382"><span class="lineNum"> 382 </span> : : obtain stack trace between each syscall\n\</a>
<a name="383"><span class="lineNum"> 383 </span> : : "</a>
<a name="384"><span class="lineNum"> 384 </span> : : #endif</a>
<a name="385"><span class="lineNum"> 385 </span> : : "\</a>
<a name="386"><span class="lineNum"> 386 </span> : : -n, --syscall-number\n\</a>
<a name="387"><span class="lineNum"> 387 </span> : : print syscall number\n\</a>
<a name="388"><span class="lineNum"> 388 </span> : : -o FILE, --output=FILE\n\</a>
<a name="389"><span class="lineNum"> 389 </span> : : send trace output to FILE instead of stderr\n\</a>
<a name="390"><span class="lineNum"> 390 </span> : : -A, --output-append-mode\n\</a>
<a name="391"><span class="lineNum"> 391 </span> : : open the file provided in the -o option in append mode\n\</a>
<a name="392"><span class="lineNum"> 392 </span> : : --output-separately\n\</a>
<a name="393"><span class="lineNum"> 393 </span> : : output into separate files (by appending pid to file names)\n\</a>
<a name="394"><span class="lineNum"> 394 </span> : : -q, --quiet=attach,personality\n\</a>
<a name="395"><span class="lineNum"> 395 </span> : : suppress messages about attaching, detaching, etc.\n\</a>
<a name="396"><span class="lineNum"> 396 </span> : : -qq, --quiet=attach,personality,exit\n\</a>
<a name="397"><span class="lineNum"> 397 </span> : : suppress messages about process exit status as well.\n\</a>
<a name="398"><span class="lineNum"> 398 </span> : : -qqq, --quiet=all\n\</a>
<a name="399"><span class="lineNum"> 399 </span> : : suppress all suppressible messages.\n\</a>
<a name="400"><span class="lineNum"> 400 </span> : : -r, --relative-timestamps[=PRECISION]\n\</a>
<a name="401"><span class="lineNum"> 401 </span> : : print relative timestamp\n\</a>
<a name="402"><span class="lineNum"> 402 </span> : : precision: one of s, ms, us, ns; default is microseconds\n\</a>
<a name="403"><span class="lineNum"> 403 </span> : : -s STRSIZE, --string-limit=STRSIZE\n\</a>
<a name="404"><span class="lineNum"> 404 </span> : : limit length of print strings to STRSIZE chars (default %d)\n\</a>
<a name="405"><span class="lineNum"> 405 </span> : : --absolute-timestamps=[[format:]FORMAT[,[precision:]PRECISION]]\n\</a>
<a name="406"><span class="lineNum"> 406 </span> : : set the format of absolute timestamps\n\</a>
<a name="407"><span class="lineNum"> 407 </span> : : format: none, time, or unix; default is time\n\</a>
<a name="408"><span class="lineNum"> 408 </span> : : precision: one of s, ms, us, ns; default is seconds\n\</a>
<a name="409"><span class="lineNum"> 409 </span> : : -t, --absolute-timestamps[=time]\n\</a>
<a name="410"><span class="lineNum"> 410 </span> : : print absolute timestamp\n\</a>
<a name="411"><span class="lineNum"> 411 </span> : : -tt, --absolute-timestamps=[time,]us\n\</a>
<a name="412"><span class="lineNum"> 412 </span> : : print absolute timestamp with usecs\n\</a>
<a name="413"><span class="lineNum"> 413 </span> : : -ttt, --absolute-timestamps=unix,us\n\</a>
<a name="414"><span class="lineNum"> 414 </span> : : print absolute UNIX time with usecs\n\</a>
<a name="415"><span class="lineNum"> 415 </span> : : -T, --syscall-times[=PRECISION]\n\</a>
<a name="416"><span class="lineNum"> 416 </span> : : print time spent in each syscall\n\</a>
<a name="417"><span class="lineNum"> 417 </span> : : precision: one of s, ms, us, ns; default is microseconds\n\</a>
<a name="418"><span class="lineNum"> 418 </span> : : -v, --no-abbrev\n\</a>
<a name="419"><span class="lineNum"> 419 </span> : : verbose mode: print entities unabbreviated\n\</a>
<a name="420"><span class="lineNum"> 420 </span> : : --strings-in-hex=non-ascii-chars\n\</a>
<a name="421"><span class="lineNum"> 421 </span> : : use hex instead of octal in escape sequences\n\</a>
<a name="422"><span class="lineNum"> 422 </span> : : -x, --strings-in-hex=non-ascii\n\</a>
<a name="423"><span class="lineNum"> 423 </span> : : print non-ASCII strings in hex\n\</a>
<a name="424"><span class="lineNum"> 424 </span> : : -xx, --strings-in-hex[=all]\n\</a>
<a name="425"><span class="lineNum"> 425 </span> : : print all strings in hex\n\</a>
<a name="426"><span class="lineNum"> 426 </span> : : -X FORMAT, --const-print-style=FORMAT\n\</a>
<a name="427"><span class="lineNum"> 427 </span> : : set the FORMAT for printing of named constants and flags\n\</a>
<a name="428"><span class="lineNum"> 428 </span> : : formats: raw, abbrev, verbose\n\</a>
<a name="429"><span class="lineNum"> 429 </span> : : -y, --decode-fds[=path]\n\</a>
<a name="430"><span class="lineNum"> 430 </span> : : print paths associated with file descriptor arguments\n\</a>
<a name="431"><span class="lineNum"> 431 </span> : : -yy, --decode-fds=all\n\</a>
<a name="432"><span class="lineNum"> 432 </span> : : print all available information associated with file\n\</a>
<a name="433"><span class="lineNum"> 433 </span> : : descriptors in addition to paths\n\</a>
<a name="434"><span class="lineNum"> 434 </span> : : --decode-pids=pidns\n\</a>
<a name="435"><span class="lineNum"> 435 </span> : : print PIDs in strace's namespace, too\n\</a>
<a name="436"><span class="lineNum"> 436 </span> : : -Y, --decode-pids=comm\n\</a>
<a name="437"><span class="lineNum"> 437 </span> : : print command names associated with PIDs\n\</a>
<a name="438"><span class="lineNum"> 438 </span> : : \n\</a>
<a name="439"><span class="lineNum"> 439 </span> : : Statistics:\n\</a>
<a name="440"><span class="lineNum"> 440 </span> : : -c, --summary-only\n\</a>
<a name="441"><span class="lineNum"> 441 </span> : : count time, calls, and errors for each syscall and report\n\</a>
<a name="442"><span class="lineNum"> 442 </span> : : summary\n\</a>
<a name="443"><span class="lineNum"> 443 </span> : : -C, --summary like -c, but also print the regular output\n\</a>
<a name="444"><span class="lineNum"> 444 </span> : : -O OVERHEAD[UNIT], --summary-syscall-overhead=OVERHEAD[UNIT]\n\</a>
<a name="445"><span class="lineNum"> 445 </span> : : set overhead for tracing syscalls to OVERHEAD UNITs\n\</a>
<a name="446"><span class="lineNum"> 446 </span> : : units: one of s, ms, us, ns; default is microseconds\n\</a>
<a name="447"><span class="lineNum"> 447 </span> : : -S SORTBY, --summary-sort-by=SORTBY\n\</a>
<a name="448"><span class="lineNum"> 448 </span> : : sort syscall counts by: time, min-time, max-time, avg-time,\n\</a>
<a name="449"><span class="lineNum"> 449 </span> : : calls, errors, name, nothing (default %s)\n\</a>
<a name="450"><span class="lineNum"> 450 </span> : : -U COLUMNS, --summary-columns=COLUMNS\n\</a>
<a name="451"><span class="lineNum"> 451 </span> : : show specific columns in the summary report: comma-separated\n\</a>
<a name="452"><span class="lineNum"> 452 </span> : : list of time-percent, total-time, min-time, max-time, \n\</a>
<a name="453"><span class="lineNum"> 453 </span> : : avg-time, calls, errors, name\n\</a>
<a name="454"><span class="lineNum"> 454 </span> : : (default time-percent,total-time,avg-time,calls,errors,name)\n\</a>
<a name="455"><span class="lineNum"> 455 </span> : : -w, --summary-wall-clock\n\</a>
<a name="456"><span class="lineNum"> 456 </span> : : summarise syscall latency (default is system time)\n\</a>
<a name="457"><span class="lineNum"> 457 </span> : : \n\</a>
<a name="458"><span class="lineNum"> 458 </span> : : Tampering:\n\</a>
<a name="459"><span class="lineNum"> 459 </span> : : -e inject=SET[:error=ERRNO|:retval=VALUE][:signal=SIG][:syscall=SYSCALL]\n\</a>
<a name="460"><span class="lineNum"> 460 </span> : : [:delay_enter=DELAY][:delay_exit=DELAY]\n\</a>
<a name="461"><span class="lineNum"> 461 </span> : : [:poke_enter=@argN=DATAN,@argM=DATAM...]\n\</a>
<a name="462"><span class="lineNum"> 462 </span> : : [:poke_exit=@argN=DATAN,@argM=DATAM...]\n\</a>
<a name="463"><span class="lineNum"> 463 </span> : : [:when=WHEN],\n\</a>
<a name="464"><span class="lineNum"> 464 </span> : : --inject=SET[:error=ERRNO|:retval=VALUE][:signal=SIG][:syscall=SYSCALL]\n\</a>
<a name="465"><span class="lineNum"> 465 </span> : : [:delay_enter=DELAY][:delay_exit=DELAY]\n\</a>
<a name="466"><span class="lineNum"> 466 </span> : : [:poke_enter=@argN=DATAN,@argM=DATAM...]\n\</a>
<a name="467"><span class="lineNum"> 467 </span> : : [:poke_exit=@argN=DATAN,@argM=DATAM...]\n\</a>
<a name="468"><span class="lineNum"> 468 </span> : : [:when=WHEN],\n\</a>
<a name="469"><span class="lineNum"> 469 </span> : : perform syscall tampering for the syscalls in SET\n\</a>
<a name="470"><span class="lineNum"> 470 </span> : : delay: microseconds or NUMBER{s|ms|us|ns}\n\</a>
<a name="471"><span class="lineNum"> 471 </span> : : when: FIRST[..LAST][+[STEP]]\n\</a>
<a name="472"><span class="lineNum"> 472 </span> : : -e fault=SET[:error=ERRNO][:when=WHEN], --fault=SET[:error=ERRNO][:when=WHEN]\n\</a>
<a name="473"><span class="lineNum"> 473 </span> : : synonym for -e inject with default ERRNO set to ENOSYS.\n\</a>
<a name="474"><span class="lineNum"> 474 </span> : : \n\</a>
<a name="475"><span class="lineNum"> 475 </span> : : Miscellaneous:\n\</a>
<a name="476"><span class="lineNum"> 476 </span> : : -d, --debug enable debug output to stderr\n\</a>
<a name="477"><span class="lineNum"> 477 </span> : : -h, --help print help message\n\</a>
<a name="478"><span class="lineNum"> 478 </span> : : --seccomp-bpf enable seccomp-bpf filtering\n\</a>
<a name="479"><span class="lineNum"> 479 </span> : : -V, --version print version\n\</a>
<a name="480"><span class="lineNum"> 480 </span> : : "</a>
<a name="481"><span class="lineNum"> 481 </span> : : /* ancient, no one should use it</a>
<a name="482"><span class="lineNum"> 482 </span> : : -F -- attempt to follow vforks (deprecated, use -f)\n\</a>
<a name="483"><span class="lineNum"> 483 </span> : : */</a>
<a name="484"><span class="lineNum"> 484 </span> : : , DEFAULT_ACOLUMN, DEFAULT_STRLEN, DEFAULT_SORTBY);</a>
<a name="485"><span class="lineNum"> 485 </span> :<span class="lineCov"> 16 : exit(0);</span></a>
<a name="486"><span class="lineNum"> 486 </span> : : </a>
<a name="487"><span class="lineNum"> 487 </span> : : #undef K_OPT</a>
<a name="488"><span class="lineNum"> 488 </span> : : }</a>
<a name="489"><span class="lineNum"> 489 </span> : : </a>
<a name="490"><span class="lineNum"> 490 </span> : : void ATTRIBUTE_NORETURN</a>
<a name="491"><span class="lineNum"> 491 </span> :<span class="lineCov"> 5292 : die(void)</span></a>
<a name="492"><span class="lineNum"> 492 </span> : : {</a>
<a name="493"><span class="lineNum"> 493 </span> [<span class="branchCov" title="Branch 0 was taken 5292 times"> + </span><span class="branchNoCov" title="Branch 1 was not taken"> - </span>]:<span class="lineCov"> 5292 : if (strace_tracer_pid == getpid()) {</span></a>
<a name="494"><span class="lineNum"> 494 </span> :<span class="lineCov"> 5292 : cleanup(0);</span></a>
<a name="495"><span class="lineNum"> 495 </span> :<span class="lineCov"> 5292 : exit(1);</span></a>
<a name="496"><span class="lineNum"> 496 </span> : : }</a>
<a name="497"><span class="lineNum"> 497 </span> : : </a>
<a name="498"><span class="lineNum"> 498 </span> :<span class="lineNoCov"> 0 : _exit(1);</span></a>
<a name="499"><span class="lineNum"> 499 </span> : : }</a>
<a name="500"><span class="lineNum"> 500 </span> : : </a>
<a name="501"><span class="lineNum"> 501 </span> : : static void</a>
<a name="502"><span class="lineNum"> 502 </span> :<span class="lineCov"> 35 : error_opt_arg(int opt, const struct option *lopt, const char *arg)</span></a>
<a name="503"><span class="lineNum"> 503 </span> : : {</a>
<a name="504"><span class="lineNum"> 504 </span> [<span class="branchCov" title="Branch 0 was taken 22 times"> + </span><span class="branchCov" title="Branch 1 was taken 13 times"> + </span><span class="branchCov" title="Branch 2 was taken 22 times"> + </span><span class="branchNoCov" title="Branch 3 was not taken"> - </span>]:<span class="lineCov"> 35 : if (lopt && lopt->name) {</span></a>
<a name="505"><span class="lineNum"> 505 </span> :<span class="lineCov"> 22 : error_msg_and_help("invalid --%s argument: '%s'",</span></a>
<a name="506"><span class="lineNum"> 506 </span> : : lopt->name, arg);</a>
<a name="507"><span class="lineNum"> 507 </span> : : } else {</a>
<a name="508"><span class="lineNum"> 508 </span> :<span class="lineCov"> 13 : error_msg_and_help("invalid -%c argument: '%s'", opt, arg);</span></a>
<a name="509"><span class="lineNum"> 509 </span> : : }</a>
<a name="510"><span class="lineNum"> 510 </span> : : }</a>
<a name="511"><span class="lineNum"> 511 </span> : : </a>
<a name="512"><span class="lineNum"> 512 </span> : : static int</a>
<a name="513"><span class="lineNum"> 513 </span> :<span class="lineCov"> 17344 : ptrace_attach_or_seize(int pid, const char **ptrace_attach_cmd)</span></a>
<a name="514"><span class="lineNum"> 514 </span> : : {</a>
<a name="515"><span class="lineNum"> 515 </span> :<span class="lineCov"> 17344 : int r;</span></a>
<a name="516"><span class="lineNum"> 516 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 17344 times"> + </span>]:<span class="lineCov"> 17344 : if (!use_seize)</span></a>
<a name="517"><span class="lineNum"> 517 </span> :<span class="lineNoCov"> 0 : return *ptrace_attach_cmd = "PTRACE_ATTACH",</span></a>
<a name="518"><span class="lineNum"> 518 </span> :<span class="lineNoCov"> 0 : ptrace(PTRACE_ATTACH, pid, 0L, 0L);</span></a>
<a name="519"><span class="lineNum"> 519 </span> :<span class="lineCov"> 17344 : r = ptrace(PTRACE_SEIZE, pid, 0L, (unsigned long) ptrace_setoptions);</span></a>
<a name="520"><span class="lineNum"> 520 </span> [<span class="branchCov" title="Branch 0 was taken 1 time"> + </span><span class="branchCov" title="Branch 1 was taken 17343 times"> + </span>]:<span class="lineCov"> 17344 : if (r)</span></a>
<a name="521"><span class="lineNum"> 521 </span> :<span class="lineCov"> 1 : return *ptrace_attach_cmd = "PTRACE_SEIZE", r;</span></a>
<a name="522"><span class="lineNum"> 522 </span> :<span class="lineCov"> 17343 : r = ptrace(PTRACE_INTERRUPT, pid, 0L, 0L);</span></a>
<a name="523"><span class="lineNum"> 523 </span> :<span class="lineCov"> 17343 : return *ptrace_attach_cmd = "PTRACE_INTERRUPT", r;</span></a>
<a name="524"><span class="lineNum"> 524 </span> : : }</a>
<a name="525"><span class="lineNum"> 525 </span> : : </a>
<a name="526"><span class="lineNum"> 526 </span> : : static const char *</a>
<a name="527"><span class="lineNum"> 527 </span> :<span class="lineNoCov"> 0 : ptrace_op_str(unsigned int op)</span></a>
<a name="528"><span class="lineNum"> 528 </span> : : {</a>
<a name="529"><span class="lineNum"> 529 </span> :<span class="lineNoCov"> 0 : const char *str = xlookup(ptrace_cmds, op);</span></a>
<a name="530"><span class="lineNum"> 530 </span> [<span class="branchNoExec" title="Branch 0 was not executed"> # </span><span class="branchNoExec" title="Branch 1 was not executed"> # </span>]:<span class="lineNoCov"> 0 : if (str)</span></a>
<a name="531"><span class="lineNum"> 531 </span> : : return str;</a>
<a name="532"><span class="lineNum"> 532 </span> : : </a>
<a name="533"><span class="lineNum"> 533 </span> :<span class="lineNoCov"> 0 : static char buf[sizeof(op) * 3];</span></a>
<a name="534"><span class="lineNum"> 534 </span> :<span class="lineNoCov"> 0 : xsprintf(buf, "%u", op);</span></a>
<a name="535"><span class="lineNum"> 535 </span> :<span class="lineNoCov"> 0 : return buf;</span></a>
<a name="536"><span class="lineNum"> 536 </span> : : }</a>
<a name="537"><span class="lineNum"> 537 </span> : : </a>
<a name="538"><span class="lineNum"> 538 </span> : : /*</a>
<a name="539"><span class="lineNum"> 539 </span> : : * Used when we want to unblock stopped traced process.</a>
<a name="540"><span class="lineNum"> 540 </span> : : * Should be only used with PTRACE_CONT, PTRACE_DETACH and PTRACE_SYSCALL.</a>
<a name="541"><span class="lineNum"> 541 </span> : : * Returns 0 on success or if error was ESRCH</a>
<a name="542"><span class="lineNum"> 542 </span> : : * (presumably process was killed while we talk to it).</a>
<a name="543"><span class="lineNum"> 543 </span> : : * Otherwise prints error message and returns -1.</a>
<a name="544"><span class="lineNum"> 544 </span> : : */</a>
<a name="545"><span class="lineNum"> 545 </span> : : static int</a>
<a name="546"><span class="lineNum"> 546 </span> :<span class="lineCov"> 176291013 : ptrace_restart(const unsigned int op, struct tcb *const tcp, unsigned int sig)</span></a>
<a name="547"><span class="lineNum"> 547 </span> : : {</a>
<a name="548"><span class="lineNum"> 548 </span> :<span class="lineCov"> 176291013 : int err;</span></a>
<a name="549"><span class="lineNum"> 549 </span> : : </a>
<a name="550"><span class="lineNum"> 550 </span> :<span class="lineCov"> 176291013 : errno = 0;</span></a>
<a name="551"><span class="lineNum"> 551 </span> :<span class="lineCov"> 176291013 : ptrace(op, tcp->pid, 0L, (unsigned long) sig);</span></a>
<a name="552"><span class="lineNum"> 552 </span> :<span class="lineCov"> 176291013 : err = errno;</span></a>
<a name="553"><span class="lineNum"> 553 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 176291013 times"> + </span>]:<span class="lineCov"> 176291013 : if (!err || err == ESRCH)</span></a>
<a name="554"><span class="lineNum"> 554 </span> : : return 0;</a>
<a name="555"><span class="lineNum"> 555 </span> : : </a>
<a name="556"><span class="lineNum"> 556 </span> : : /*</a>
<a name="557"><span class="lineNum"> 557 </span> : : * Why curcol != 0? Otherwise sometimes we get this:</a>
<a name="558"><span class="lineNum"> 558 </span> : : *</a>
<a name="559"><span class="lineNum"> 559 </span> : : * 10252 kill(10253, SIGKILL) = 0</a>
<a name="560"><span class="lineNum"> 560 </span> : : * <ptrace(SYSCALL,10252):No such process>10253 ...next decode...</a>
<a name="561"><span class="lineNum"> 561 </span> : : *</a>
<a name="562"><span class="lineNum"> 562 </span> : : * 10252 died after we retrieved syscall exit data,</a>
<a name="563"><span class="lineNum"> 563 </span> : : * but before we tried to restart it. Log looks ugly.</a>
<a name="564"><span class="lineNum"> 564 </span> : : */</a>
<a name="565"><span class="lineNum"> 565 </span> [<span class="branchNoExec" title="Branch 0 was not executed"> # </span><span class="branchNoExec" title="Branch 1 was not executed"> # </span><span class="branchNoExec" title="Branch 2 was not executed"> # </span><span class="branchNoExec" title="Branch 3 was not executed"> # </span>]:<span class="lineNoCov"> 0 : if (current_tcp && current_tcp->curcol != 0) {</span></a>
<a name="566"><span class="lineNum"> 566 </span> :<span class="lineNoCov"> 0 : tprintf(" <Cannot restart pid %d with ptrace(%s): %s>\n",</span></a>
<a name="567"><span class="lineNum"> 567 </span> : : tcp->pid, ptrace_op_str(op), strerror(err));</a>
<a name="568"><span class="lineNum"> 568 </span> :<span class="lineNoCov"> 0 : line_ended();</span></a>
<a name="569"><span class="lineNum"> 569 </span> : : }</a>
<a name="570"><span class="lineNum"> 570 </span> :<span class="lineNoCov"> 0 : errno = err;</span></a>
<a name="571"><span class="lineNum"> 571 </span> :<span class="lineNoCov"> 0 : perror_msg("ptrace(%s,pid:%d,sig:%u)",</span></a>
<a name="572"><span class="lineNum"> 572 </span> : : ptrace_op_str(op), tcp->pid, sig);</a>
<a name="573"><span class="lineNum"> 573 </span> :<span class="lineNoCov"> 0 : return -1;</span></a>
<a name="574"><span class="lineNum"> 574 </span> : : }</a>
<a name="575"><span class="lineNum"> 575 </span> : : </a>
<a name="576"><span class="lineNum"> 576 </span> : : static void</a>
<a name="577"><span class="lineNum"> 577 </span> :<span class="lineCov"> 74602 : set_cloexec_flag(int fd)</span></a>
<a name="578"><span class="lineNum"> 578 </span> : : {</a>
<a name="579"><span class="lineNum"> 579 </span> :<span class="lineCov"> 74602 : int flags, newflags;</span></a>
<a name="580"><span class="lineNum"> 580 </span> : : </a>
<a name="581"><span class="lineNum"> 581 </span> :<span class="lineCov"> 74602 : flags = fcntl_fd(fd, F_GETFD);</span></a>
<a name="582"><span class="lineNum"> 582 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 74602 times"> + </span>]:<span class="lineCov"> 74602 : if (flags < 0) {</span></a>
<a name="583"><span class="lineNum"> 583 </span> : : /* Can happen only if fd is bad.</a>
<a name="584"><span class="lineNum"> 584 </span> : : * Should never happen: if it does, we have a bug</a>
<a name="585"><span class="lineNum"> 585 </span> : : * in the caller. Therefore we just abort</a>
<a name="586"><span class="lineNum"> 586 </span> : : * instead of propagating the error.</a>
<a name="587"><span class="lineNum"> 587 </span> : : */</a>
<a name="588"><span class="lineNum"> 588 </span> :<span class="lineNoCov"> 0 : perror_msg_and_die("fcntl(%d, F_GETFD)", fd);</span></a>
<a name="589"><span class="lineNum"> 589 </span> : : }</a>
<a name="590"><span class="lineNum"> 590 </span> : : </a>
<a name="591"><span class="lineNum"> 591 </span> :<span class="lineCov"> 74602 : newflags = flags | FD_CLOEXEC;</span></a>
<a name="592"><span class="lineNum"> 592 </span> [<span class="branchCov" title="Branch 0 was taken 74602 times"> + </span><span class="branchNoCov" title="Branch 1 was not taken"> - </span>]:<span class="lineCov"> 74602 : if (flags == newflags)</span></a>
<a name="593"><span class="lineNum"> 593 </span> : : return;</a>
<a name="594"><span class="lineNum"> 594 </span> : : </a>
<a name="595"><span class="lineNum"> 595 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 74602 times"> + </span>]:<span class="lineCov"> 74602 : if (fcntl_fd(fd, F_SETFD, newflags)) /* never fails */</span></a>
<a name="596"><span class="lineNum"> 596 </span> :<span class="lineNoCov"> 0 : perror_msg_and_die("fcntl(%d, F_SETFD, %#x)", fd, newflags);</span></a>
<a name="597"><span class="lineNum"> 597 </span> : : }</a>
<a name="598"><span class="lineNum"> 598 </span> : : </a>
<a name="599"><span class="lineNum"> 599 </span> : : /*</a>
<a name="600"><span class="lineNum"> 600 </span> : : * When strace is setuid executable, we have to swap uids</a>
<a name="601"><span class="lineNum"> 601 </span> : : * before and after filesystem and process management operations.</a>
<a name="602"><span class="lineNum"> 602 </span> : : */</a>
<a name="603"><span class="lineNum"> 603 </span> : : static void</a>
<a name="604"><span class="lineNum"> 604 </span> :<span class="lineCov"> 45197 : swap_uid(void)</span></a>
<a name="605"><span class="lineNum"> 605 </span> : : {</a>
<a name="606"><span class="lineNum"> 606 </span> :<span class="lineCov"> 45197 : int euid = geteuid(), uid = getuid();</span></a>
<a name="607"><span class="lineNum"> 607 </span> : : </a>
<a name="608"><span class="lineNum"> 608 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 45197 times"> + </span><span class="branchNoCov" title="Branch 2 was not taken"> - </span><span class="branchNoCov" title="Branch 3 was not taken"> - </span>]:<span class="lineCov"> 45197 : if (euid != uid && setreuid(euid, uid) < 0) {</span></a>
<a name="609"><span class="lineNum"> 609 </span> :<span class="lineNoCov"> 0 : perror_msg_and_die("setreuid");</span></a>
<a name="610"><span class="lineNum"> 610 </span> : : }</a>
<a name="611"><span class="lineNum"> 611 </span> :<span class="lineCov"> 45197 : }</span></a>
<a name="612"><span class="lineNum"> 612 </span> : : </a>
<a name="613"><span class="lineNum"> 613 </span> : : static FILE *</a>
<a name="614"><span class="lineNum"> 614 </span> :<span class="lineCov"> 22596 : strace_fopen(const char *path)</span></a>
<a name="615"><span class="lineNum"> 615 </span> : : {</a>
<a name="616"><span class="lineNum"> 616 </span> :<span class="lineCov"> 22596 : FILE *fp;</span></a>
<a name="617"><span class="lineNum"> 617 </span> : : </a>
<a name="618"><span class="lineNum"> 618 </span> :<span class="lineCov"> 22596 : swap_uid();</span></a>
<a name="619"><span class="lineNum"> 619 </span> [<span class="branchCov" title="Branch 0 was taken 22596 times"> + </span><span class="branchNoCov" title="Branch 1 was not taken"> - </span>]:<span class="lineCov"> 45192 : fp = fopen_stream(path, open_append ? "a" : "w");</span></a>
<a name="620"><span class="lineNum"> 620 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 22596 times"> + </span>]:<span class="lineCov"> 22596 : if (!fp)</span></a>
<a name="621"><span class="lineNum"> 621 </span> :<span class="lineNoCov"> 0 : perror_msg_and_die("Can't fopen '%s'", path);</span></a>
<a name="622"><span class="lineNum"> 622 </span> :<span class="lineCov"> 22596 : swap_uid();</span></a>
<a name="623"><span class="lineNum"> 623 </span> :<span class="lineCov"> 22596 : set_cloexec_flag(fileno(fp));</span></a>
<a name="624"><span class="lineNum"> 624 </span> :<span class="lineCov"> 22596 : return fp;</span></a>
<a name="625"><span class="lineNum"> 625 </span> : : }</a>
<a name="626"><span class="lineNum"> 626 </span> : : </a>
<a name="627"><span class="lineNum"> 627 </span> : : static int popen_pid;</a>
<a name="628"><span class="lineNum"> 628 </span> : : </a>
<a name="629"><span class="lineNum"> 629 </span> : : #ifndef _PATH_BSHELL</a>
<a name="630"><span class="lineNum"> 630 </span> : : # define _PATH_BSHELL "/bin/sh"</a>
<a name="631"><span class="lineNum"> 631 </span> : : #endif</a>
<a name="632"><span class="lineNum"> 632 </span> : : </a>
<a name="633"><span class="lineNum"> 633 </span> : : /*</a>
<a name="634"><span class="lineNum"> 634 </span> : : * We cannot use standard popen(3) here because we have to distinguish</a>
<a name="635"><span class="lineNum"> 635 </span> : : * popen child process from other processes we trace, and standard popen(3)</a>
<a name="636"><span class="lineNum"> 636 </span> : : * does not export its child's pid.</a>
<a name="637"><span class="lineNum"> 637 </span> : : */</a>
<a name="638"><span class="lineNum"> 638 </span> : : static FILE *</a>
<a name="639"><span class="lineNum"> 639 </span> :<span class="lineCov"> 5 : strace_popen(const char *command)</span></a>
<a name="640"><span class="lineNum"> 640 </span> : : {</a>
<a name="641"><span class="lineNum"> 641 </span> :<span class="lineCov"> 5 : FILE *fp;</span></a>
<a name="642"><span class="lineNum"> 642 </span> :<span class="lineCov"> 5 : int pid;</span></a>
<a name="643"><span class="lineNum"> 643 </span> :<span class="lineCov"> 5 : int fds[2];</span></a>
<a name="644"><span class="lineNum"> 644 </span> : : </a>
<a name="645"><span class="lineNum"> 645 </span> :<span class="lineCov"> 5 : swap_uid();</span></a>
<a name="646"><span class="lineNum"> 646 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 5 times"> + </span>]:<span class="lineCov"> 5 : if (pipe(fds) < 0)</span></a>
<a name="647"><span class="lineNum"> 647 </span> :<span class="lineNoCov"> 0 : perror_msg_and_die("pipe");</span></a>
<a name="648"><span class="lineNum"> 648 </span> : : </a>
<a name="649"><span class="lineNum"> 649 </span> :<span class="lineCov"> 5 : set_cloexec_flag(fds[1]); /* never fails */</span></a>
<a name="650"><span class="lineNum"> 650 </span> : : </a>
<a name="651"><span class="lineNum"> 651 </span> :<span class="lineCov"> 5 : pid = vfork();</span></a>
<a name="652"><span class="lineNum"> 652 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 5 times"> + </span>]:<span class="lineCov"> 5 : if (pid < 0)</span></a>
<a name="653"><span class="lineNum"> 653 </span> :<span class="lineNoCov"> 0 : perror_msg_and_die("vfork");</span></a>
<a name="654"><span class="lineNum"> 654 </span> : : </a>
<a name="655"><span class="lineNum"> 655 </span> [<span class="branchCov" title="Branch 0 was taken 5 times"> + </span><span class="branchNoCov" title="Branch 1 was not taken"> - </span>]:<span class="lineCov"> 5 : if (pid == 0) {</span></a>
<a name="656"><span class="lineNum"> 656 </span> : : /* child */</a>
<a name="657"><span class="lineNum"> 657 </span> :<span class="lineCov"> 5 : close(fds[1]);</span></a>
<a name="658"><span class="lineNum"> 658 </span> [<span class="branchCov" title="Branch 0 was taken 5 times"> + </span><span class="branchNoCov" title="Branch 1 was not taken"> - </span>]:<span class="lineCov"> 5 : if (fds[0] != 0) {</span></a>
<a name="659"><span class="lineNum"> 659 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 5 times"> + </span>]:<span class="lineCov"> 5 : if (dup2(fds[0], 0))</span></a>
<a name="660"><span class="lineNum"> 660 </span> :<span class="lineNoCov"> 0 : perror_msg_and_die("dup2");</span></a>
<a name="661"><span class="lineNum"> 661 </span> :<span class="lineCov"> 5 : close(fds[0]);</span></a>
<a name="662"><span class="lineNum"> 662 </span> : : }</a>
<a name="663"><span class="lineNum"> 663 </span> :<span class="lineCov"> 5 : execl(_PATH_BSHELL, "sh", "-c", command, NULL);</span></a>
<a name="664"><span class="lineNum"> 664 </span> :<span class="lineCov"> 5 : perror_msg_and_die("Can't execute '%s'", _PATH_BSHELL);</span></a>
<a name="665"><span class="lineNum"> 665 </span> : : }</a>
<a name="666"><span class="lineNum"> 666 </span> : : </a>
<a name="667"><span class="lineNum"> 667 </span> : : /* parent */</a>
<a name="668"><span class="lineNum"> 668 </span> :<span class="lineNoCov"> 0 : popen_pid = pid;</span></a>
<a name="669"><span class="lineNum"> 669 </span> :<span class="lineNoCov"> 0 : close(fds[0]);</span></a>
<a name="670"><span class="lineNum"> 670 </span> :<span class="lineNoCov"> 0 : swap_uid();</span></a>
<a name="671"><span class="lineNum"> 671 </span> :<span class="lineNoCov"> 0 : fp = fdopen(fds[1], "w");</span></a>
<a name="672"><span class="lineNum"> 672 </span> [<span class="branchNoExec" title="Branch 0 was not executed"> # </span><span class="branchNoExec" title="Branch 1 was not executed"> # </span>]:<span class="lineNoCov"> 0 : if (!fp)</span></a>
<a name="673"><span class="lineNum"> 673 </span> :<span class="lineNoCov"> 0 : perror_msg_and_die("fdopen");</span></a>
<a name="674"><span class="lineNum"> 674 </span> :<span class="lineNoCov"> 0 : return fp;</span></a>
<a name="675"><span class="lineNum"> 675 </span> : : }</a>
<a name="676"><span class="lineNum"> 676 </span> : : </a>
<a name="677"><span class="lineNum"> 677 </span> : : static void</a>
<a name="678"><span class="lineNum"> 678 </span> :<span class="lineCov"> 1 : outf_perror(const struct tcb * const tcp)</span></a>
<a name="679"><span class="lineNum"> 679 </span> : : {</a>
<a name="680"><span class="lineNum"> 680 </span> [<span class="branchCov" title="Branch 0 was taken 1 time"> + </span><span class="branchNoCov" title="Branch 1 was not taken"> - </span>]:<span class="lineCov"> 1 : if (tcp->outf == stderr)</span></a>
<a name="681"><span class="lineNum"> 681 </span> : : return;</a>
<a name="682"><span class="lineNum"> 682 </span> : : </a>
<a name="683"><span class="lineNum"> 683 </span> : : /* This is ugly, but we don't store separate file names */</a>
<a name="684"><span class="lineNum"> 684 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 1 time"> + </span>]:<span class="lineCov"> 1 : if (output_separately)</span></a>
<a name="685"><span class="lineNum"> 685 </span> :<span class="lineNoCov"> 0 : perror_msg("%s.%u", outfname, tcp->pid);</span></a>
<a name="686"><span class="lineNum"> 686 </span> : : else</a>
<a name="687"><span class="lineNum"> 687 </span> :<span class="lineCov"> 1 : perror_msg("%s", outfname);</span></a>
<a name="688"><span class="lineNum"> 688 </span> : : }</a>
<a name="689"><span class="lineNum"> 689 </span> : : </a>
<a name="690"><span class="lineNum"> 690 </span> : : ATTRIBUTE_FORMAT((printf, 1, 0))</a>
<a name="691"><span class="lineNum"> 691 </span> : : static void</a>
<a name="692"><span class="lineNum"> 692 </span> :<span class="lineCov"> 8778408 : tvprintf(const char *const fmt, va_list args)</span></a>
<a name="693"><span class="lineNum"> 693 </span> : : {</a>
<a name="694"><span class="lineNum"> 694 </span> [<span class="branchCov" title="Branch 0 was taken 8778408 times"> + </span><span class="branchNoCov" title="Branch 1 was not taken"> - </span>]:<span class="lineCov"> 8778408 : if (current_tcp) {</span></a>
<a name="695"><span class="lineNum"> 695 </span> :<span class="lineCov"> 8778408 : int n = vfprintf(current_tcp->outf, fmt, args);</span></a>
<a name="696"><span class="lineNum"> 696 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 8778408 times"> + </span>]:<span class="lineCov"> 8778408 : if (n < 0) {</span></a>
<a name="697"><span class="lineNum"> 697 </span> : : /* very unlikely due to vfprintf buffering */</a>
<a name="698"><span class="lineNum"> 698 </span> :<span class="lineNoCov"> 0 : outf_perror(current_tcp);</span></a>
<a name="699"><span class="lineNum"> 699 </span> : : } else</a>
<a name="700"><span class="lineNum"> 700 </span> :<span class="lineCov"> 8778408 : current_tcp->curcol += n;</span></a>
<a name="701"><span class="lineNum"> 701 </span> : : }</a>
<a name="702"><span class="lineNum"> 702 </span> :<span class="lineCov"> 8778408 : }</span></a>
<a name="703"><span class="lineNum"> 703 </span> : : </a>
<a name="704"><span class="lineNum"> 704 </span> : : void</a>
<a name="705"><span class="lineNum"> 705 </span> :<span class="lineCov"> 8708450 : tprintf(const char *fmt, ...)</span></a>
<a name="706"><span class="lineNum"> 706 </span> : : {</a>
<a name="707"><span class="lineNum"> 707 </span> :<span class="lineCov"> 8708450 : va_list args;</span></a>
<a name="708"><span class="lineNum"> 708 </span> :<span class="lineCov"> 8708450 : va_start(args, fmt);</span></a>
<a name="709"><span class="lineNum"> 709 </span> :<span class="lineCov"> 8708450 : tvprintf(fmt, args);</span></a>
<a name="710"><span class="lineNum"> 710 </span> :<span class="lineCov"> 8708450 : va_end(args);</span></a>
<a name="711"><span class="lineNum"> 711 </span> :<span class="lineCov"> 8708450 : }</span></a>
<a name="712"><span class="lineNum"> 712 </span> : : </a>
<a name="713"><span class="lineNum"> 713 </span> : : #ifndef HAVE_FPUTS_UNLOCKED</a>
<a name="714"><span class="lineNum"> 714 </span> : : # define fputs_unlocked fputs</a>
<a name="715"><span class="lineNum"> 715 </span> : : #endif</a>
<a name="716"><span class="lineNum"> 716 </span> : : </a>
<a name="717"><span class="lineNum"> 717 </span> : : void</a>
<a name="718"><span class="lineNum"> 718 </span> :<span class="lineCov"> 13265401 : tprints(const char *str)</span></a>
<a name="719"><span class="lineNum"> 719 </span> : : {</a>
<a name="720"><span class="lineNum"> 720 </span> [<span class="branchCov" title="Branch 0 was taken 13265401 times"> + </span><span class="branchNoCov" title="Branch 1 was not taken"> - </span>]:<span class="lineCov"> 13265401 : if (current_tcp) {</span></a>
<a name="721"><span class="lineNum"> 721 </span> :<span class="lineCov"> 13265401 : int n = fputs_unlocked(str, current_tcp->outf);</span></a>
<a name="722"><span class="lineNum"> 722 </span> [<span class="branchCov" title="Branch 0 was taken 13265401 times"> + </span><span class="branchNoCov" title="Branch 1 was not taken"> - </span>]:<span class="lineCov"> 13265401 : if (n >= 0) {</span></a>
<a name="723"><span class="lineNum"> 723 </span> :<span class="lineCov"> 13265401 : current_tcp->curcol += strlen(str);</span></a>
<a name="724"><span class="lineNum"> 724 </span> :<span class="lineCov"> 13265401 : return;</span></a>
<a name="725"><span class="lineNum"> 725 </span> : : }</a>
<a name="726"><span class="lineNum"> 726 </span> : : /* very unlikely due to fputs_unlocked buffering */</a>
<a name="727"><span class="lineNum"> 727 </span> :<span class="lineNoCov"> 0 : outf_perror(current_tcp);</span></a>
<a name="728"><span class="lineNum"> 728 </span> : : }</a>
<a name="729"><span class="lineNum"> 729 </span> : : }</a>
<a name="730"><span class="lineNum"> 730 </span> : : </a>
<a name="731"><span class="lineNum"> 731 </span> : : void</a>
<a name="732"><span class="lineNum"> 732 </span> :<span class="lineCov"> 116553 : tprints_comment(const char *const str)</span></a>
<a name="733"><span class="lineNum"> 733 </span> : : {</a>
<a name="734"><span class="lineNum"> 734 </span> [<span class="branchCov" title="Branch 0 was taken 112930 times"> + </span><span class="branchCov" title="Branch 1 was taken 3623 times"> + </span><span class="branchCov" title="Branch 2 was taken 112907 times"> + </span><span class="branchCov" title="Branch 3 was taken 23 times"> + </span>]:<span class="lineCov"> 116553 : if (str && *str)</span></a>
<a name="735"><span class="lineNum"> 735 </span> :<span class="lineCov"> 112907 : tprintf(" /* %s */", str);</span></a>
<a name="736"><span class="lineNum"> 736 </span> :<span class="lineCov"> 116553 : }</span></a>
<a name="737"><span class="lineNum"> 737 </span> : : </a>
<a name="738"><span class="lineNum"> 738 </span> : : void</a>
<a name="739"><span class="lineNum"> 739 </span> :<span class="lineCov"> 69958 : tprintf_comment(const char *fmt, ...)</span></a>
<a name="740"><span class="lineNum"> 740 </span> : : {</a>
<a name="741"><span class="lineNum"> 741 </span> [<span class="branchCov" title="Branch 0 was taken 69958 times"> + </span><span class="branchNoCov" title="Branch 1 was not taken"> - </span><span class="branchNoCov" title="Branch 2 was not taken"> - </span><span class="branchCov" title="Branch 3 was taken 69958 times"> + </span>]:<span class="lineCov"> 69958 : if (!fmt || !*fmt)</span></a>
<a name="742"><span class="lineNum"> 742 </span> :<span class="lineNoCov"> 0 : return;</span></a>
<a name="743"><span class="lineNum"> 743 </span> : : </a>
<a name="744"><span class="lineNum"> 744 </span> :<span class="lineCov"> 69958 : va_list args;</span></a>
<a name="745"><span class="lineNum"> 745 </span> :<span class="lineCov"> 69958 : va_start(args, fmt);</span></a>
<a name="746"><span class="lineNum"> 746 </span> :<span class="lineCov"> 69958 : tprint_comment_begin();</span></a>
<a name="747"><span class="lineNum"> 747 </span> :<span class="lineCov"> 69958 : tvprintf(fmt, args);</span></a>
<a name="748"><span class="lineNum"> 748 </span> :<span class="lineCov"> 69958 : tprint_comment_end();</span></a>
<a name="749"><span class="lineNum"> 749 </span> :<span class="lineCov"> 69958 : va_end(args);</span></a>
<a name="750"><span class="lineNum"> 750 </span> : : }</a>
<a name="751"><span class="lineNum"> 751 </span> : : </a>
<a name="752"><span class="lineNum"> 752 </span> : : static void</a>
<a name="753"><span class="lineNum"> 753 </span> :<span class="lineCov"> 1196597 : flush_tcp_output(const struct tcb *const tcp)</span></a>
<a name="754"><span class="lineNum"> 754 </span> : : {</a>
<a name="755"><span class="lineNum"> 755 </span> [<span class="branchCov" title="Branch 0 was taken 1 time"> + </span><span class="branchCov" title="Branch 1 was taken 1196596 times"> + </span>]:<span class="lineCov"> 1196597 : if (fflush(tcp->outf))</span></a>
<a name="756"><span class="lineNum"> 756 </span> :<span class="lineCov"> 1 : outf_perror(tcp);</span></a>
<a name="757"><span class="lineNum"> 757 </span> :<span class="lineCov"> 1196597 : }</span></a>
<a name="758"><span class="lineNum"> 758 </span> : : </a>
<a name="759"><span class="lineNum"> 759 </span> : : void</a>
<a name="760"><span class="lineNum"> 760 </span> :<span class="lineCov"> 1157447 : line_ended(void)</span></a>
<a name="761"><span class="lineNum"> 761 </span> : : {</a>
<a name="762"><span class="lineNum"> 762 </span> [<span class="branchCov" title="Branch 0 was taken 1157447 times"> + </span><span class="branchNoCov" title="Branch 1 was not taken"> - </span>]:<span class="lineCov"> 1157447 : if (current_tcp) {</span></a>
<a name="763"><span class="lineNum"> 763 </span> :<span class="lineCov"> 1157447 : current_tcp->curcol = 0;</span></a>
<a name="764"><span class="lineNum"> 764 </span> :<span class="lineCov"> 1157447 : flush_tcp_output(current_tcp);</span></a>
<a name="765"><span class="lineNum"> 765 </span> : : }</a>
<a name="766"><span class="lineNum"> 766 </span> [<span class="branchCov" title="Branch 0 was taken 1157447 times"> + </span><span class="branchNoCov" title="Branch 1 was not taken"> - </span>]:<span class="lineCov"> 1157447 : if (printing_tcp) {</span></a>
<a name="767"><span class="lineNum"> 767 </span> :<span class="lineCov"> 1157447 : printing_tcp->curcol = 0;</span></a>
<a name="768"><span class="lineNum"> 768 </span> :<span class="lineCov"> 1157447 : printing_tcp = NULL;</span></a>
<a name="769"><span class="lineNum"> 769 </span> : : }</a>
<a name="770"><span class="lineNum"> 770 </span> :<span class="lineCov"> 1157447 : }</span></a>
<a name="771"><span class="lineNum"> 771 </span> : : </a>
<a name="772"><span class="lineNum"> 772 </span> : : static void</a>
<a name="773"><span class="lineNum"> 773 </span> :<span class="lineCov"> 178084892 : set_current_tcp(const struct tcb *tcp)</span></a>
<a name="774"><span class="lineNum"> 774 </span> : : {</a>
<a name="775"><span class="lineNum"> 775 </span> :<span class="lineCov"> 178084892 : current_tcp = (struct tcb *) tcp;</span></a>
<a name="776"><span class="lineNum"> 776 </span> : : </a>
<a name="777"><span class="lineNum"> 777 </span> : : /* Sync current_personality and stuff */</a>
<a name="778"><span class="lineNum"> 778 </span> [<span class="branchCov" title="Branch 0 was taken 178038068 times"> + </span><span class="branchNoCov" title="Branch 1 was not taken"> - </span>]:<span class="lineCov"> 178038068 : if (current_tcp)</span></a>
<a name="779"><span class="lineNum"> 779 </span> :<span class="lineCov"> 178038068 : set_personality(current_tcp->currpers);</span></a>
<a name="780"><span class="lineNum"> 780 </span> :<span class="lineCov"> 178084892 : }</span></a>
<a name="781"><span class="lineNum"> 781 </span> : : </a>
<a name="782"><span class="lineNum"> 782 </span> : : static void</a>
<a name="783"><span class="lineNum"> 783 </span> :<span class="lineCov"> 123372 : print_comm_str(const char *str, const size_t len)</span></a>
<a name="784"><span class="lineNum"> 784 </span> : : {</a>
<a name="785"><span class="lineNum"> 785 </span> [<span class="branchCov" title="Branch 0 was taken 54 times"> + </span><span class="branchCov" title="Branch 1 was taken 123318 times"> + </span>]:<span class="lineCov"> 123372 : if (!len)</span></a>
<a name="786"><span class="lineNum"> 786 </span> : : return;</a>
<a name="787"><span class="lineNum"> 787 </span> :<span class="lineCov"> 54 : tprints("<");</span></a>
<a name="788"><span class="lineNum"> 788 </span> :<span class="lineCov"> 54 : print_quoted_string_ex(str, len,</span></a>
<a name="789"><span class="lineNum"> 789 </span> : : QUOTE_OMIT_LEADING_TRAILING_QUOTES, "<>");</a>
<a name="790"><span class="lineNum"> 790 </span> :<span class="lineCov"> 54 : tprints(">");</span></a>
<a name="791"><span class="lineNum"> 791 </span> : : }</a>
<a name="792"><span class="lineNum"> 792 </span> : : </a>
<a name="793"><span class="lineNum"> 793 </span> : : void</a>
<a name="794"><span class="lineNum"> 794 </span> :<span class="lineCov"> 1158333 : printleader(struct tcb *tcp)</span></a>
<a name="795"><span class="lineNum"> 795 </span> : : {</a>
<a name="796"><span class="lineNum"> 796 </span> : : /* If -ff, "previous tcb we printed" is always the same as current,</a>
<a name="797"><span class="lineNum"> 797 </span> : : * because we have per-tcb output files.</a>
<a name="798"><span class="lineNum"> 798 </span> : : */</a>
<a name="799"><span class="lineNum"> 799 </span> [<span class="branchCov" title="Branch 0 was taken 540957 times"> + </span><span class="branchCov" title="Branch 1 was taken 617376 times"> + </span>]:<span class="lineCov"> 1158333 : if (output_separately)</span></a>
<a name="800"><span class="lineNum"> 800 </span> :<span class="lineCov"> 540957 : printing_tcp = tcp;</span></a>
<a name="801"><span class="lineNum"> 801 </span> : : </a>
<a name="802"><span class="lineNum"> 802 </span> [<span class="branchCov" title="Branch 0 was taken 541784 times"> + </span><span class="branchCov" title="Branch 1 was taken 616549 times"> + </span>]:<span class="lineCov"> 1158333 : if (printing_tcp) {</span></a>
<a name="803"><span class="lineNum"> 803 </span> :<span class="lineCov"> 541784 : set_current_tcp(printing_tcp);</span></a>
<a name="804"><span class="lineNum"> 804 </span> [<span class="branchCov" title="Branch 0 was taken 541782 times"> + </span><span class="branchCov" title="Branch 1 was taken 2 times"> + </span><span class="branchCov" title="Branch 2 was taken 808 times"> + </span><span class="branchCov" title="Branch 3 was taken 540974 times"> + </span>]:<span class="lineCov"> 541784 : if (!tcp->staged_output_data && printing_tcp->curcol != 0 &&</span></a>
<a name="805"><span class="lineNum"> 805 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 808 times"> + </span><span class="branchNoCov" title="Branch 2 was not taken"> - </span><span class="branchNoCov" title="Branch 3 was not taken"> - </span>]:<span class="lineCov"> 808 : (!output_separately || printing_tcp == tcp)) {</span></a>
<a name="806"><span class="lineNum"> 806 </span> : : /*</a>
<a name="807"><span class="lineNum"> 807 </span> : : * case 1: we have a shared log (i.e. not -ff), and last line</a>
<a name="808"><span class="lineNum"> 808 </span> : : * wasn't finished (same or different tcb, doesn't matter).</a>
<a name="809"><span class="lineNum"> 809 </span> : : * case 2: split log, we are the same tcb, but our last line</a>
<a name="810"><span class="lineNum"> 810 </span> : : * didn't finish ("SIGKILL nuked us after syscall entry" etc).</a>
<a name="811"><span class="lineNum"> 811 </span> : : */</a>
<a name="812"><span class="lineNum"> 812 </span> :<span class="lineCov"> 808 : tprints(" <unfinished ...>\n");</span></a>
<a name="813"><span class="lineNum"> 813 </span> :<span class="lineCov"> 808 : printing_tcp->curcol = 0;</span></a>
<a name="814"><span class="lineNum"> 814 </span> : : }</a>
<a name="815"><span class="lineNum"> 815 </span> : : }</a>
<a name="816"><span class="lineNum"> 816 </span> : : </a>
<a name="817"><span class="lineNum"> 817 </span> :<span class="lineCov"> 1158333 : printing_tcp = tcp;</span></a>
<a name="818"><span class="lineNum"> 818 </span> :<span class="lineCov"> 1158333 : set_current_tcp(tcp);</span></a>
<a name="819"><span class="lineNum"> 819 </span> :<span class="lineCov"> 1158333 : current_tcp->curcol = 0;</span></a>
<a name="820"><span class="lineNum"> 820 </span> : : </a>
<a name="821"><span class="lineNum"> 821 </span> [<span class="branchCov" title="Branch 0 was taken 1034994 times"> + </span><span class="branchCov" title="Branch 1 was taken 123339 times"> + </span><span class="branchCov" title="Branch 2 was taken 536148 times"> + </span><span class="branchCov" title="Branch 3 was taken 498846 times"> + </span> :<span class="lineCov"> 1158333 : if (print_pid_pfx || (nprocs > 1 && !outfname)) {</span></a>
<span class="lineNum"> </span> <span class="branchCov" title="Branch 4 was taken 5 times"> + </span><span class="branchCov" title="Branch 5 was taken 536143 times"> + </span>]
<a name="822"><span class="lineNum"> 822 </span> :<span class="lineCov"> 123344 : size_t len = is_number_in_set(DECODE_PID_COMM, decode_pid_set)</span></a>
<a name="823"><span class="lineNum"> 823 </span> [<span class="branchCov" title="Branch 0 was taken 26 times"> + </span><span class="branchCov" title="Branch 1 was taken 123318 times"> + </span>]:<span class="lineCov"> 123344 : ? strlen(tcp->comm) : 0;</span></a>
<a name="824"><span class="lineNum"> 824 </span> : : </a>
<a name="825"><span class="lineNum"> 825 </span> [<span class="branchCov" title="Branch 0 was taken 123339 times"> + </span><span class="branchCov" title="Branch 1 was taken 5 times"> + </span>]:<span class="lineCov"> 123344 : if (print_pid_pfx) {</span></a>
<a name="826"><span class="lineNum"> 826 </span> [<span class="branchCov" title="Branch 0 was taken 26 times"> + </span><span class="branchCov" title="Branch 1 was taken 123313 times"> + </span>]:<span class="lineCov"> 123339 : if (len)</span></a>
<a name="827"><span class="lineNum"> 827 </span> :<span class="lineCov"> 26 : tprintf("%u", tcp->pid);</span></a>
<a name="828"><span class="lineNum"> 828 </span> : : else</a>
<a name="829"><span class="lineNum"> 829 </span> :<span class="lineCov"> 123313 : tprintf("%-5u", tcp->pid);</span></a>
<a name="830"><span class="lineNum"> 830 </span> : : } else {</a>
<a name="831"><span class="lineNum"> 831 </span> :<span class="lineCov"> 5 : tprintf("[pid %5u", tcp->pid);</span></a>
<a name="832"><span class="lineNum"> 832 </span> : : }</a>
<a name="833"><span class="lineNum"> 833 </span> : : </a>
<a name="834"><span class="lineNum"> 834 </span> :<span class="lineCov"> 123344 : print_comm_str(tcp->comm, len);</span></a>
<a name="835"><span class="lineNum"> 835 </span> : : </a>
<a name="836"><span class="lineNum"> 836 </span> [<span class="branchCov" title="Branch 0 was taken 5 times"> + </span><span class="branchCov" title="Branch 1 was taken 123339 times"> + </span>]:<span class="lineCov"> 123344 : if (!print_pid_pfx)</span></a>
<a name="837"><span class="lineNum"> 837 </span> :<span class="lineCov"> 5 : tprints("]");</span></a>
<a name="838"><span class="lineNum"> 838 </span> :<span class="lineCov"> 123344 : tprints(" ");</span></a>
<a name="839"><span class="lineNum"> 839 </span> : : }</a>
<a name="840"><span class="lineNum"> 840 </span> : : </a>
<a name="841"><span class="lineNum"> 841 </span> : : #ifdef ENABLE_SECONTEXT</a>
<a name="842"><span class="lineNum"> 842 </span> :<span class="lineCov"> 1158333 : char *context;</span></a>
<a name="843"><span class="lineNum"> 843 </span> [<span class="branchCov" title="Branch 0 was taken 656 times"> + </span><span class="branchCov" title="Branch 1 was taken 1157677 times"> + </span>]:<span class="lineCov"> 1158333 : if (!selinux_getpidcon(tcp, &context)) {</span></a>
<a name="844"><span class="lineNum"> 844 </span> :<span class="lineCov"> 656 : tprintf("[%s] ", context);</span></a>
<a name="845"><span class="lineNum"> 845 </span> :<span class="lineCov"> 656 : free(context);</span></a>
<a name="846"><span class="lineNum"> 846 </span> : : }</a>
<a name="847"><span class="lineNum"> 847 </span> : : #endif</a>
<a name="848"><span class="lineNum"> 848 </span> : : </a>
<a name="849"><span class="lineNum"> 849 </span> [<span class="branchCov" title="Branch 0 was taken 64 times"> + </span><span class="branchCov" title="Branch 1 was taken 1158269 times"> + </span>]:<span class="lineCov"> 1158333 : if (tflag_format) {</span></a>
<a name="850"><span class="lineNum"> 850 </span> :<span class="lineCov"> 64 : struct timespec ts;</span></a>
<a name="851"><span class="lineNum"> 851 </span> :<span class="lineCov"> 64 : clock_gettime(CLOCK_REALTIME, &ts);</span></a>
<a name="852"><span class="lineNum"> 852 </span> : : </a>
<a name="853"><span class="lineNum"> 853 </span> :<span class="lineCov"> 64 : time_t local = ts.tv_sec;</span></a>
<a name="854"><span class="lineNum"> 854 </span> :<span class="lineCov"> 64 : char str[MAX(sizeof("HH:MM:SS"), sizeof(local) * 3)];</span></a>
<a name="855"><span class="lineNum"> 855 </span> :<span class="lineCov"> 64 : struct tm *tm = localtime(&local);</span></a>
<a name="856"><span class="lineNum"> 856 </span> : : </a>
<a name="857"><span class="lineNum"> 857 </span> [<span class="branchCov" title="Branch 0 was taken 64 times"> + </span><span class="branchNoCov" title="Branch 1 was not taken"> - </span>]:<span class="lineCov"> 64 : if (tm)</span></a>
<a name="858"><span class="lineNum"> 858 </span> :<span class="lineCov"> 64 : strftime(str, sizeof(str), tflag_format, tm);</span></a>
<a name="859"><span class="lineNum"> 859 </span> : : else</a>
<a name="860"><span class="lineNum"> 860 </span> :<span class="lineNoCov"> 0 : xsprintf(str, "%lld", (long long) local);</span></a>
<a name="861"><span class="lineNum"> 861 </span> [<span class="branchCov" title="Branch 0 was taken 46 times"> + </span><span class="branchCov" title="Branch 1 was taken 18 times"> + </span>]:<span class="lineCov"> 64 : if (tflag_width)</span></a>
<a name="862"><span class="lineNum"> 862 </span> :<span class="lineCov"> 46 : tprintf("%s.%0*ld ", str, tflag_width,</span></a>
<a name="863"><span class="lineNum"> 863 </span> :<span class="lineCov"> 46 : (long) ts.tv_nsec / tflag_scale);</span></a>
<a name="864"><span class="lineNum"> 864 </span> : : else</a>
<a name="865"><span class="lineNum"> 865 </span> :<span class="lineCov"> 18 : tprintf("%s ", str);</span></a>
<a name="866"><span class="lineNum"> 866 </span> : : }</a>
<a name="867"><span class="lineNum"> 867 </span> : : </a>
<a name="868"><span class="lineNum"> 868 </span> [<span class="branchCov" title="Branch 0 was taken 176 times"> + </span><span class="branchCov" title="Branch 1 was taken 1158157 times"> + </span>]:<span class="lineCov"> 1158333 : if (rflag) {</span></a>
<a name="869"><span class="lineNum"> 869 </span> :<span class="lineCov"> 176 : struct timespec ts;</span></a>
<a name="870"><span class="lineNum"> 870 </span> :<span class="lineCov"> 176 : clock_gettime(CLOCK_MONOTONIC, &ts);</span></a>
<a name="871"><span class="lineNum"> 871 </span> : : </a>
<a name="872"><span class="lineNum"> 872 </span> :<span class="lineCov"> 176 : static struct timespec ots;</span></a>
<a name="873"><span class="lineNum"> 873 </span> [<span class="branchCov" title="Branch 0 was taken 10 times"> + </span><span class="branchCov" title="Branch 1 was taken 166 times"> + </span>]:<span class="lineCov"> 176 : if (ots.tv_sec == 0)</span></a>
<a name="874"><span class="lineNum"> 874 </span> :<span class="lineCov"> 10 : ots = ts;</span></a>
<a name="875"><span class="lineNum"> 875 </span> : : </a>
<a name="876"><span class="lineNum"> 876 </span> :<span class="lineCov"> 176 : struct timespec dts;</span></a>
<a name="877"><span class="lineNum"> 877 </span> :<span class="lineCov"> 176 : ts_sub(&dts, &ts, &ots);</span></a>
<a name="878"><span class="lineNum"> 878 </span> :<span class="lineCov"> 176 : ots = ts;</span></a>
<a name="879"><span class="lineNum"> 879 </span> : : </a>
<a name="880"><span class="lineNum"> 880 </span> [<span class="branchCov" title="Branch 0 was taken 176 times"> + </span><span class="branchNoCov" title="Branch 1 was not taken"> - </span>]:<span class="lineCov"> 352 : tprintf("%s%6ld", tflag_format ? "(+" : "", (long) dts.tv_sec);</span></a>
<a name="881"><span class="lineNum"> 881 </span> [<span class="branchCov" title="Branch 0 was taken 174 times"> + </span><span class="branchCov" title="Branch 1 was taken 2 times"> + </span>]:<span class="lineCov"> 176 : if (rflag_width) {</span></a>
<a name="882"><span class="lineNum"> 882 </span> :<span class="lineCov"> 174 : tprintf(".%0*ld",</span></a>
<a name="883"><span class="lineNum"> 883 </span> :<span class="lineCov"> 174 : rflag_width, (long) dts.tv_nsec / rflag_scale);</span></a>
<a name="884"><span class="lineNum"> 884 </span> : : }</a>
<a name="885"><span class="lineNum"> 885 </span> [<span class="branchCov" title="Branch 0 was taken 176 times"> + </span><span class="branchNoCov" title="Branch 1 was not taken"> - </span>]:<span class="lineCov"> 352 : tprints(tflag_format ? ") " : " ");</span></a>
<a name="886"><span class="lineNum"> 886 </span> : : }</a>
<a name="887"><span class="lineNum"> 887 </span> : : </a>
<a name="888"><span class="lineNum"> 888 </span> [<span class="branchCov" title="Branch 0 was taken 1 time"> + </span><span class="branchCov" title="Branch 1 was taken 1158332 times"> + </span>]:<span class="lineCov"> 1158333 : if (nflag)</span></a>
<a name="889"><span class="lineNum"> 889 </span> :<span class="lineCov"> 1 : print_syscall_number(tcp);</span></a>
<a name="890"><span class="lineNum"> 890 </span> : : </a>
<a name="891"><span class="lineNum"> 891 </span> [<span class="branchCov" title="Branch 0 was taken 48 times"> + </span><span class="branchCov" title="Branch 1 was taken 1158285 times"> + </span>]:<span class="lineCov"> 1158333 : if (iflag)</span></a>
<a name="892"><span class="lineNum"> 892 </span> :<span class="lineCov"> 48 : print_instruction_pointer(tcp);</span></a>
<a name="893"><span class="lineNum"> 893 </span> :<span class="lineCov"> 1158333 : }</span></a>
<a name="894"><span class="lineNum"> 894 </span> : : </a>
<a name="895"><span class="lineNum"> 895 </span> : : void</a>
<a name="896"><span class="lineNum"> 896 </span> :<span class="lineCov"> 1140310 : tabto(void)</span></a>
<a name="897"><span class="lineNum"> 897 </span> : : {</a>
<a name="898"><span class="lineNum"> 898 </span> [<span class="branchCov" title="Branch 0 was taken 70883 times"> + </span><span class="branchCov" title="Branch 1 was taken 1069427 times"> + </span>]:<span class="lineCov"> 1140310 : if (current_tcp->curcol < acolumn)</span></a>
<a name="899"><span class="lineNum"> 899 </span> :<span class="lineCov"> 70883 : tprints(acolumn_spaces + current_tcp->curcol);</span></a>
<a name="900"><span class="lineNum"> 900 </span> :<span class="lineCov"> 1140310 : }</span></a>
<a name="901"><span class="lineNum"> 901 </span> : : </a>
<a name="902"><span class="lineNum"> 902 </span> : : /* Should be only called directly *after successful attach* to a tracee.</a>
<a name="903"><span class="lineNum"> 903 </span> : : * Otherwise, "strace -oFILE -ff -p<nonexistant_pid>"</a>
<a name="904"><span class="lineNum"> 904 </span> : : * may create bogus empty FILE.<nonexistant_pid>, and then die.</a>
<a name="905"><span class="lineNum"> 905 </span> : : */</a>
<a name="906"><span class="lineNum"> 906 </span> : : static void</a>
<a name="907"><span class="lineNum"> 907 </span> :<span class="lineCov"> 46824 : after_successful_attach(struct tcb *tcp, const unsigned int flags)</span></a>
<a name="908"><span class="lineNum"> 908 </span> : : {</a>
<a name="909"><span class="lineNum"> 909 </span> :<span class="lineCov"> 46824 : tcp->flags |= TCB_ATTACHED | TCB_STARTUP | flags;</span></a>
<a name="910"><span class="lineNum"> 910 </span> :<span class="lineCov"> 46824 : tcp->outf = shared_log; /* if not -ff mode, the same file is for all */</span></a>
<a name="911"><span class="lineNum"> 911 </span> [<span class="branchCov" title="Branch 0 was taken 7686 times"> + </span><span class="branchCov" title="Branch 1 was taken 39138 times"> + </span>]:<span class="lineCov"> 46824 : if (output_separately) {</span></a>
<a name="912"><span class="lineNum"> 912 </span> :<span class="lineCov"> 7686 : char name[PATH_MAX];</span></a>
<a name="913"><span class="lineNum"> 913 </span> :<span class="lineCov"> 7686 : xsprintf(name, "%s.%u", outfname, tcp->pid);</span></a>
<a name="914"><span class="lineNum"> 914 </span> :<span class="lineCov"> 7686 : tcp->outf = strace_fopen(name);</span></a>
<a name="915"><span class="lineNum"> 915 </span> : : }</a>
<a name="916"><span class="lineNum"> 916 </span> : : </a>
<a name="917"><span class="lineNum"> 917 </span> : : #ifdef ENABLE_STACKTRACE</a>
<a name="918"><span class="lineNum"> 918 </span> : : if (stack_trace_enabled)</a>
<a name="919"><span class="lineNum"> 919 </span> : : unwind_tcb_init(tcp);</a>
<a name="920"><span class="lineNum"> 920 </span> : : #endif</a>
<a name="921"><span class="lineNum"> 921 </span> :<span class="lineCov"> 46824 : }</span></a>
<a name="922"><span class="lineNum"> 922 </span> : : </a>
<a name="923"><span class="lineNum"> 923 </span> : : static void</a>
<a name="924"><span class="lineNum"> 924 </span> :<span class="lineCov"> 17718 : expand_tcbtab(void)</span></a>
<a name="925"><span class="lineNum"> 925 </span> : : {</a>
<a name="926"><span class="lineNum"> 926 </span> : : /* Allocate some (more) TCBs (and expand the table).</a>
<a name="927"><span class="lineNum"> 927 </span> : : We don't want to relocate the TCBs because our</a>
<a name="928"><span class="lineNum"> 928 </span> : : callers have pointers and it would be a pain.</a>
<a name="929"><span class="lineNum"> 929 </span> : : So tcbtab is a table of pointers. Since we never</a>
<a name="930"><span class="lineNum"> 930 </span> : : free the TCBs, we allocate a single chunk of many. */</a>
<a name="931"><span class="lineNum"> 931 </span> :<span class="lineCov"> 17718 : size_t old_tcbtabsize;</span></a>
<a name="932"><span class="lineNum"> 932 </span> :<span class="lineCov"> 17718 : struct tcb *newtcbs;</span></a>
<a name="933"><span class="lineNum"> 933 </span> : : </a>
<a name="934"><span class="lineNum"> 934 </span> :<span class="lineCov"> 17718 : old_tcbtabsize = tcbtabsize;</span></a>
<a name="935"><span class="lineNum"> 935 </span> : : </a>
<a name="936"><span class="lineNum"> 936 </span> :<span class="lineCov"> 17718 : tcbtab = xgrowarray(tcbtab, &tcbtabsize, sizeof(tcbtab[0]));</span></a>
<a name="937"><span class="lineNum"> 937 </span> :<span class="lineCov"> 17718 : newtcbs = xcalloc(tcbtabsize - old_tcbtabsize, sizeof(newtcbs[0]));</span></a>
<a name="938"><span class="lineNum"> 938 </span> : : </a>
<a name="939"><span class="lineNum"> 939 </span> :<span class="lineCov"> 17718 : for (struct tcb **tcb_ptr = tcbtab + old_tcbtabsize;</span></a>
<a name="940"><span class="lineNum"> 940 </span> [<span class="branchCov" title="Branch 0 was taken 293021 times"> + </span><span class="branchCov" title="Branch 1 was taken 17718 times"> + </span>]:<span class="lineCov"> 310739 : tcb_ptr < tcbtab + tcbtabsize;</span></a>
<a name="941"><span class="lineNum"> 941 </span> :<span class="lineCov"> 293021 : ++tcb_ptr, ++newtcbs)</span></a>
<a name="942"><span class="lineNum"> 942 </span> :<span class="lineCov"> 293021 : *tcb_ptr = newtcbs;</span></a>
<a name="943"><span class="lineNum"> 943 </span> :<span class="lineCov"> 17718 : }</span></a>
<a name="944"><span class="lineNum"> 944 </span> : : </a>
<a name="945"><span class="lineNum"> 945 </span> : : static char *</a>
<a name="946"><span class="lineNum"> 946 </span> :<span class="lineCov"> 44 : strip_trailing_newlines(char *str)</span></a>
<a name="947"><span class="lineNum"> 947 </span> : : {</a>
<a name="948"><span class="lineNum"> 948 </span> :<span class="lineCov"> 44 : size_t len = strlen(str);</span></a>
<a name="949"><span class="lineNum"> 949 </span> [<span class="branchCov" title="Branch 0 was taken 66 times"> + </span><span class="branchNoCov" title="Branch 1 was not taken"> - </span>]:<span class="lineCov"> 66 : for (; len > 0; --len) {</span></a>
<a name="950"><span class="lineNum"> 950 </span> [<span class="branchCov" title="Branch 0 was taken 22 times"> + </span><span class="branchCov" title="Branch 1 was taken 44 times"> + </span>]:<span class="lineCov"> 66 : if (str[len - 1] != '\n')</span></a>
<a name="951"><span class="lineNum"> 951 </span> : : break;</a>
<a name="952"><span class="lineNum"> 952 </span> : : }</a>
<a name="953"><span class="lineNum"> 953 </span> :<span class="lineCov"> 44 : str[len] = '\0';</span></a>
<a name="954"><span class="lineNum"> 954 </span> :<span class="lineCov"> 44 : return str;</span></a>
<a name="955"><span class="lineNum"> 955 </span> : : }</a>
<a name="956"><span class="lineNum"> 956 </span> : : </a>
<a name="957"><span class="lineNum"> 957 </span> : : /* Load the contents of /proc/$pid/comm into `buf'. */</a>
<a name="958"><span class="lineNum"> 958 </span> : : static void</a>
<a name="959"><span class="lineNum"> 959 </span> :<span class="lineCov"> 58 : load_pid_comm(int pid, char *buf, size_t buf_size)</span></a>
<a name="960"><span class="lineNum"> 960 </span> : : {</a>
<a name="961"><span class="lineNum"> 961 </span> :<span class="lineCov"> 58 : static const char comm_path[] = "/proc/%d/comm";</span></a>
<a name="962"><span class="lineNum"> 962 </span> :<span class="lineCov"> 58 : char procfile[sizeof(comm_path) + sizeof(int) * 3];</span></a>
<a name="963"><span class="lineNum"> 963 </span> : : </a>
<a name="964"><span class="lineNum"> 964 </span> :<span class="lineCov"> 58 : buf[0] = '\0';</span></a>
<a name="965"><span class="lineNum"> 965 </span> :<span class="lineCov"> 58 : xsprintf(procfile, comm_path, pid);</span></a>
<a name="966"><span class="lineNum"> 966 </span> :<span class="lineCov"> 58 : FILE *fp = fopen_stream(procfile, "r");</span></a>
<a name="967"><span class="lineNum"> 967 </span> [<span class="branchCov" title="Branch 0 was taken 44 times"> + </span><span class="branchCov" title="Branch 1 was taken 14 times"> + </span>]:<span class="lineCov"> 58 : if (fp) {</span></a>
<a name="968"><span class="lineNum"> 968 </span> [<span class="branchCov" title="Branch 0 was taken 44 times"> + </span><span class="branchNoCov" title="Branch 1 was not taken"> - </span>]:<span class="lineCov"> 44 : if (fgets(buf, buf_size, fp))</span></a>
<a name="969"><span class="lineNum"> 969 </span> :<span class="lineCov"> 44 : strip_trailing_newlines(buf);</span></a>
<a name="970"><span class="lineNum"> 970 </span> :<span class="lineCov"> 44 : fclose(fp);</span></a>
<a name="971"><span class="lineNum"> 971 </span> : : }</a>
<a name="972"><span class="lineNum"> 972 </span> :<span class="lineCov"> 58 : }</span></a>
<a name="973"><span class="lineNum"> 973 </span> : : </a>
<a name="974"><span class="lineNum"> 974 </span> : : void</a>
<a name="975"><span class="lineNum"> 975 </span> :<span class="lineCov"> 28 : print_pid_comm(int pid)</span></a>
<a name="976"><span class="lineNum"> 976 </span> : : {</a>
<a name="977"><span class="lineNum"> 977 </span> :<span class="lineCov"> 28 : char buf[PROC_COMM_LEN];</span></a>
<a name="978"><span class="lineNum"> 978 </span> :<span class="lineCov"> 28 : load_pid_comm(pid, buf, sizeof(buf));</span></a>
<a name="979"><span class="lineNum"> 979 </span> :<span class="lineCov"> 28 : print_comm_str(buf, strlen(buf));</span></a>
<a name="980"><span class="lineNum"> 980 </span> :<span class="lineCov"> 28 : }</span></a>
<a name="981"><span class="lineNum"> 981 </span> : : </a>
<a name="982"><span class="lineNum"> 982 </span> : : void</a>
<a name="983"><span class="lineNum"> 983 </span> :<span class="lineCov"> 65361 : maybe_load_task_comm(struct tcb *tcp)</span></a>
<a name="984"><span class="lineNum"> 984 </span> : : {</a>
<a name="985"><span class="lineNum"> 985 </span> [<span class="branchCov" title="Branch 0 was taken 30 times"> + </span><span class="branchCov" title="Branch 1 was taken 65331 times"> + </span>]:<span class="lineCov"> 65361 : if (!is_number_in_set(DECODE_PID_COMM, decode_pid_set))</span></a>
<a name="986"><span class="lineNum"> 986 </span> : : return;</a>
<a name="987"><span class="lineNum"> 987 </span> : : </a>
<a name="988"><span class="lineNum"> 988 </span> :<span class="lineCov"> 30 : load_pid_comm(get_proc_pid(tcp->pid), tcp->comm, sizeof(tcp->comm));</span></a>
<a name="989"><span class="lineNum"> 989 </span> : : }</a>
<a name="990"><span class="lineNum"> 990 </span> : : </a>
<a name="991"><span class="lineNum"> 991 </span> : : static struct tcb *</a>
<a name="992"><span class="lineNum"> 992 </span> :<span class="lineCov"> 46845 : alloctcb(int pid)</span></a>
<a name="993"><span class="lineNum"> 993 </span> : : {</a>
<a name="994"><span class="lineNum"> 994 </span> [<span class="branchCov" title="Branch 0 was taken 17718 times"> + </span><span class="branchCov" title="Branch 1 was taken 29127 times"> + </span>]:<span class="lineCov"> 46845 : if (nprocs == tcbtabsize)</span></a>
<a name="995"><span class="lineNum"> 995 </span> :<span class="lineCov"> 17718 : expand_tcbtab();</span></a>
<a name="996"><span class="lineNum"> 996 </span> : : </a>
<a name="997"><span class="lineNum"> 997 </span> [<span class="branchCov" title="Branch 0 was taken 2144649 times"> + </span><span class="branchNoCov" title="Branch 1 was not taken"> - </span>]:<span class="lineCov"> 2144649 : for (unsigned int i = 0; i < tcbtabsize; ++i) {</span></a>
<a name="998"><span class="lineNum"> 998 </span> :<span class="lineCov"> 2144649 : struct tcb *tcp = tcbtab[i];</span></a>
<a name="999"><span class="lineNum"> 999 </span> [<span class="branchCov" title="Branch 0 was taken 46845 times"> + </span><span class="branchCov" title="Branch 1 was taken 2097804 times"> + </span>]:<span class="lineCov"> 2144649 : if (!tcp->pid) {</span></a>
<a name="1000"><span class="lineNum"> 1000 </span> :<span class="lineCov"> 46845 : memset(tcp, 0, sizeof(*tcp));</span></a>
<a name="1001"><span class="lineNum"> 1001 </span> :<span class="lineCov"> 46845 : list_init(&tcp->wait_list);</span></a>
<a name="1002"><span class="lineNum"> 1002 </span> :<span class="lineCov"> 46845 : tcp->pid = pid;</span></a>
<a name="1003"><span class="lineNum"> 1003 </span> :<span class="lineCov"> 46845 : maybe_load_task_comm(tcp);</span></a>
<a name="1004"><span class="lineNum"> 1004 </span> : : #if SUPPORTED_PERSONALITIES > 1</a>
<a name="1005"><span class="lineNum"> 1005 </span> :<span class="lineCov"> 46845 : tcp->currpers = current_personality;</span></a>
<a name="1006"><span class="lineNum"> 1006 </span> : : #endif</a>
<a name="1007"><span class="lineNum"> 1007 </span> : : #ifdef ENABLE_SECONTEXT</a>
<a name="1008"><span class="lineNum"> 1008 </span> :<span class="lineCov"> 46845 : tcp->last_dirfd = AT_FDCWD;</span></a>
<a name="1009"><span class="lineNum"> 1009 </span> : : #endif</a>
<a name="1010"><span class="lineNum"> 1010 </span> :<span class="lineCov"> 46845 : nprocs++;</span></a>
<a name="1011"><span class="lineNum"> 1011 </span> [<span class="branchCov" title="Branch 0 was taken 12 times"> + </span><span class="branchCov" title="Branch 1 was taken 46833 times"> + </span>]:<span class="lineCov"> 46845 : debug_msg("new tcb for pid %d, active tcbs:%d",</span></a>
<a name="1012"><span class="lineNum"> 1012 </span> : : tcp->pid, nprocs);</a>
<a name="1013"><span class="lineNum"> 1013 </span> :<span class="lineCov"> 46845 : return tcp;</span></a>
<a name="1014"><span class="lineNum"> 1014 </span> : : }</a>
<a name="1015"><span class="lineNum"> 1015 </span> : : }</a>
<a name="1016"><span class="lineNum"> 1016 </span> :<span class="lineNoCov"> 0 : error_msg_and_die("bug in alloctcb");</span></a>
<a name="1017"><span class="lineNum"> 1017 </span> : : }</a>
<a name="1018"><span class="lineNum"> 1018 </span> : : </a>
<a name="1019"><span class="lineNum"> 1019 </span> : : void *</a>
<a name="1020"><span class="lineNum"> 1020 </span> :<span class="lineCov"> 8319 : get_tcb_priv_data(const struct tcb *tcp)</span></a>
<a name="1021"><span class="lineNum"> 1021 </span> : : {</a>
<a name="1022"><span class="lineNum"> 1022 </span> :<span class="lineCov"> 8319 : return tcp->_priv_data;</span></a>
<a name="1023"><span class="lineNum"> 1023 </span> : : }</a>
<a name="1024"><span class="lineNum"> 1024 </span> : : </a>
<a name="1025"><span class="lineNum"> 1025 </span> : : int</a>
<a name="1026"><span class="lineNum"> 1026 </span> :<span class="lineCov"> 8835 : set_tcb_priv_data(struct tcb *tcp, void *const priv_data,</span></a>
<a name="1027"><span class="lineNum"> 1027 </span> : : void (*const free_priv_data)(void *))</a>
<a name="1028"><span class="lineNum"> 1028 </span> : : {</a>
<a name="1029"><span class="lineNum"> 1029 </span> [<span class="branchCov" title="Branch 0 was taken 8819 times"> + </span><span class="branchCov" title="Branch 1 was taken 16 times"> + </span>]:<span class="lineCov"> 8835 : if (tcp->_priv_data)</span></a>
<a name="1030"><span class="lineNum"> 1030 </span> : : return -1;</a>
<a name="1031"><span class="lineNum"> 1031 </span> : : </a>
<a name="1032"><span class="lineNum"> 1032 </span> :<span class="lineCov"> 8819 : tcp->_free_priv_data = free_priv_data;</span></a>
<a name="1033"><span class="lineNum"> 1033 </span> :<span class="lineCov"> 8819 : tcp->_priv_data = priv_data;</span></a>
<a name="1034"><span class="lineNum"> 1034 </span> : : </a>
<a name="1035"><span class="lineNum"> 1035 </span> :<span class="lineCov"> 8819 : return 0;</span></a>
<a name="1036"><span class="lineNum"> 1036 </span> : : }</a>
<a name="1037"><span class="lineNum"> 1037 </span> : : </a>
<a name="1038"><span class="lineNum"> 1038 </span> : : void</a>
<a name="1039"><span class="lineNum"> 1039 </span> :<span class="lineCov"> 88066006 : free_tcb_priv_data(struct tcb *tcp)</span></a>
<a name="1040"><span class="lineNum"> 1040 </span> : : {</a>
<a name="1041"><span class="lineNum"> 1041 </span> [<span class="branchCov" title="Branch 0 was taken 8503 times"> + </span><span class="branchCov" title="Branch 1 was taken 88057503 times"> + </span>]:<span class="lineCov"> 88066006 : if (tcp->_priv_data) {</span></a>
<a name="1042"><span class="lineNum"> 1042 </span> [<span class="branchCov" title="Branch 0 was taken 1060 times"> + </span><span class="branchCov" title="Branch 1 was taken 7443 times"> + </span>]:<span class="lineCov"> 8503 : if (tcp->_free_priv_data) {</span></a>
<a name="1043"><span class="lineNum"> 1043 </span> :<span class="lineCov"> 1060 : tcp->_free_priv_data(tcp->_priv_data);</span></a>
<a name="1044"><span class="lineNum"> 1044 </span> :<span class="lineCov"> 1060 : tcp->_free_priv_data = NULL;</span></a>
<a name="1045"><span class="lineNum"> 1045 </span> : : }</a>
<a name="1046"><span class="lineNum"> 1046 </span> :<span class="lineCov"> 8503 : tcp->_priv_data = NULL;</span></a>
<a name="1047"><span class="lineNum"> 1047 </span> : : }</a>
<a name="1048"><span class="lineNum"> 1048 </span> :<span class="lineCov"> 88066006 : }</span></a>
<a name="1049"><span class="lineNum"> 1049 </span> : : </a>
<a name="1050"><span class="lineNum"> 1050 </span> : : static void</a>
<a name="1051"><span class="lineNum"> 1051 </span> :<span class="lineCov"> 46853 : droptcb(struct tcb *tcp)</span></a>
<a name="1052"><span class="lineNum"> 1052 </span> : : {</a>
<a name="1053"><span class="lineNum"> 1053 </span> [<span class="branchCov" title="Branch 0 was taken 46853 times"> + </span><span class="branchNoCov" title="Branch 1 was not taken"> - </span>]:<span class="lineCov"> 46853 : if (tcp->pid == 0)</span></a>
<a name="1054"><span class="lineNum"> 1054 </span> : : return;</a>
<a name="1055"><span class="lineNum"> 1055 </span> : : </a>
<a name="1056"><span class="lineNum"> 1056 </span> [<span class="branchCov" title="Branch 0 was taken 74 times"> + </span><span class="branchCov" title="Branch 1 was taken 46779 times"> + </span><span class="branchNoCov" title="Branch 2 was not taken"> - </span><span class="branchCov" title="Branch 3 was taken 74 times"> + </span>]:<span class="lineCov"> 46853 : if (cflag && debug_flag) {</span></a>
<a name="1057"><span class="lineNum"> 1057 </span> :<span class="lineNoCov"> 0 : struct timespec dt;</span></a>
<a name="1058"><span class="lineNum"> 1058 </span> : : </a>
<a name="1059"><span class="lineNum"> 1059 </span> :<span class="lineNoCov"> 0 : ts_sub(&dt, &tcp->stime, &tcp->atime);</span></a>
<a name="1060"><span class="lineNum"> 1060 </span> [<span class="branchNoExec" title="Branch 0 was not executed"> # </span><span class="branchNoExec" title="Branch 1 was not executed"> # </span>]:<span class="lineNoCov"> 0 : debug_func_msg("pid %d: %.9f seconds of system time spent "</span></a>
<a name="1061"><span class="lineNum"> 1061 </span> : : "since attach", tcp->pid, ts_float(&dt));</a>
<a name="1062"><span class="lineNum"> 1062 </span> : : }</a>
<a name="1063"><span class="lineNum"> 1063 </span> : : </a>
<a name="1064"><span class="lineNum"> 1064 </span> [<span class="branchCov" title="Branch 0 was taken 140559 times"> + </span><span class="branchCov" title="Branch 1 was taken 46853 times"> + </span>]:<span class="lineCov"> 187412 : for (int p = 0; p < SUPPORTED_PERSONALITIES; ++p)</span></a>
<a name="1065"><span class="lineNum"> 1065 </span> :<span class="lineCov"> 140559 : free(tcp->inject_vec[p]);</span></a>
<a name="1066"><span class="lineNum"> 1066 </span> : : </a>
<a name="1067"><span class="lineNum"> 1067 </span> :<span class="lineCov"> 46853 : free_tcb_priv_data(tcp);</span></a>
<a name="1068"><span class="lineNum"> 1068 </span> : : </a>
<a name="1069"><span class="lineNum"> 1069 </span> : : #ifdef ENABLE_STACKTRACE</a>
<a name="1070"><span class="lineNum"> 1070 </span> : : if (stack_trace_enabled)</a>
<a name="1071"><span class="lineNum"> 1071 </span> : : unwind_tcb_fin(tcp);</a>
<a name="1072"><span class="lineNum"> 1072 </span> : : #endif</a>
<a name="1073"><span class="lineNum"> 1073 </span> : : </a>
<a name="1074"><span class="lineNum"> 1074 </span> : : #ifdef HAVE_LINUX_KVM_H</a>
<a name="1075"><span class="lineNum"> 1075 </span> :<span class="lineCov"> 46853 : kvm_vcpu_info_free(tcp);</span></a>
<a name="1076"><span class="lineNum"> 1076 </span> : : #endif</a>
<a name="1077"><span class="lineNum"> 1077 </span> : : </a>
<a name="1078"><span class="lineNum"> 1078 </span> [<span class="branchCov" title="Branch 0 was taken 1 time"> + </span><span class="branchCov" title="Branch 1 was taken 46852 times"> + </span>]:<span class="lineCov"> 46853 : if (tcp->mmap_cache)</span></a>
<a name="1079"><span class="lineNum"> 1079 </span> :<span class="lineCov"> 1 : tcp->mmap_cache->free_fn(tcp, __func__);</span></a>
<a name="1080"><span class="lineNum"> 1080 </span> : : </a>
<a name="1081"><span class="lineNum"> 1081 </span> :<span class="lineCov"> 46853 : nprocs--;</span></a>
<a name="1082"><span class="lineNum"> 1082 </span> [<span class="branchCov" title="Branch 0 was taken 12 times"> + </span><span class="branchCov" title="Branch 1 was taken 46841 times"> + </span>]:<span class="lineCov"> 46853 : debug_msg("dropped tcb for pid %d, %d remain", tcp->pid, nprocs);</span></a>
<a name="1083"><span class="lineNum"> 1083 </span> : : </a>
<a name="1084"><span class="lineNum"> 1084 </span> [<span class="branchCov" title="Branch 0 was taken 46824 times"> + </span><span class="branchCov" title="Branch 1 was taken 29 times"> + </span>]:<span class="lineCov"> 46853 : if (tcp->outf) {</span></a>
<a name="1085"><span class="lineNum"> 1085 </span> :<span class="lineCov"> 46824 : bool publish = true;</span></a>
<a name="1086"><span class="lineNum"> 1086 </span> [<span class="branchCov" title="Branch 0 was taken 16 times"> + </span><span class="branchCov" title="Branch 1 was taken 46808 times"> + </span>]:<span class="lineCov"> 46824 : if (!is_complete_set(status_set, NUMBER_OF_STATUSES)) {</span></a>
<a name="1087"><span class="lineNum"> 1087 </span> :<span class="lineCov"> 16 : publish = is_number_in_set(STATUS_DETACHED, status_set);</span></a>
<a name="1088"><span class="lineNum"> 1088 </span> :<span class="lineCov"> 16 : strace_close_memstream(tcp, publish);</span></a>
<a name="1089"><span class="lineNum"> 1089 </span> : : }</a>
<a name="1090"><span class="lineNum"> 1090 </span> : : </a>
<a name="1091"><span class="lineNum"> 1091 </span> [<span class="branchCov" title="Branch 0 was taken 7686 times"> + </span><span class="branchCov" title="Branch 1 was taken 39138 times"> + </span>]:<span class="lineCov"> 46824 : if (output_separately) {</span></a>
<a name="1092"><span class="lineNum"> 1092 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 7686 times"> + </span><span class="branchNoCov" title="Branch 2 was not taken"> - </span><span class="branchNoCov" title="Branch 3 was not taken"> - </span>]:<span class="lineCov"> 7686 : if (tcp->curcol != 0 && publish)</span></a>
<a name="1093"><span class="lineNum"> 1093 </span> :<span class="lineNoCov"> 0 : fprintf(tcp->outf, " <detached ...>\n");</span></a>
<a name="1094"><span class="lineNum"> 1094 </span> :<span class="lineCov"> 7686 : fclose(tcp->outf);</span></a>
<a name="1095"><span class="lineNum"> 1095 </span> : : } else {</a>
<a name="1096"><span class="lineNum"> 1096 </span> [<span class="branchCov" title="Branch 0 was taken 59 times"> + </span><span class="branchCov" title="Branch 1 was taken 39079 times"> + </span><span class="branchCov" title="Branch 2 was taken 59 times"> + </span><span class="branchNoCov" title="Branch 3 was not taken"> - </span> :<span class="lineCov"> 39138 : if (printing_tcp == tcp && tcp->curcol != 0 && publish)</span></a>
<span class="lineNum"> </span> <span class="branchCov" title="Branch 4 was taken 59 times"> + </span><span class="branchNoCov" title="Branch 5 was not taken"> - </span>]
<a name="1097"><span class="lineNum"> 1097 </span> :<span class="lineCov"> 59 : fprintf(tcp->outf, " <detached ...>\n");</span></a>
<a name="1098"><span class="lineNum"> 1098 </span> :<span class="lineCov"> 39138 : flush_tcp_output(tcp);</span></a>
<a name="1099"><span class="lineNum"> 1099 </span> : : }</a>
<a name="1100"><span class="lineNum"> 1100 </span> : : }</a>
<a name="1101"><span class="lineNum"> 1101 </span> : : </a>
<a name="1102"><span class="lineNum"> 1102 </span> [<span class="branchCov" title="Branch 0 was taken 46824 times"> + </span><span class="branchCov" title="Branch 1 was taken 29 times"> + </span>]:<span class="lineCov"> 46853 : if (current_tcp == tcp)</span></a>
<a name="1103"><span class="lineNum"> 1103 </span> :<span class="lineCov"> 46824 : set_current_tcp(NULL);</span></a>
<a name="1104"><span class="lineNum"> 1104 </span> [<span class="branchCov" title="Branch 0 was taken 59 times"> + </span><span class="branchCov" title="Branch 1 was taken 46794 times"> + </span>]:<span class="lineCov"> 46853 : if (printing_tcp == tcp)</span></a>
<a name="1105"><span class="lineNum"> 1105 </span> :<span class="lineCov"> 59 : printing_tcp = NULL;</span></a>
<a name="1106"><span class="lineNum"> 1106 </span> : : </a>
<a name="1107"><span class="lineNum"> 1107 </span> :<span class="lineCov"> 46853 : list_remove(&tcp->wait_list);</span></a>
<a name="1108"><span class="lineNum"> 1108 </span> : : </a>
<a name="1109"><span class="lineNum"> 1109 </span> :<span class="lineCov"> 46853 : memset(tcp, 0, sizeof(*tcp));</span></a>
<a name="1110"><span class="lineNum"> 1110 </span> : : }</a>
<a name="1111"><span class="lineNum"> 1111 </span> : : </a>
<a name="1112"><span class="lineNum"> 1112 </span> : : /* Detach traced process.</a>
<a name="1113"><span class="lineNum"> 1113 </span> : : * Never call DETACH twice on the same process as both unattached and</a>
<a name="1114"><span class="lineNum"> 1114 </span> : : * attached-unstopped processes give the same ESRCH. For unattached process we</a>
<a name="1115"><span class="lineNum"> 1115 </span> : : * would SIGSTOP it and wait for its SIGSTOP notification forever.</a>
<a name="1116"><span class="lineNum"> 1116 </span> : : */</a>
<a name="1117"><span class="lineNum"> 1117 </span> : : static void</a>
<a name="1118"><span class="lineNum"> 1118 </span> :<span class="lineCov"> 34 : detach(struct tcb *tcp)</span></a>
<a name="1119"><span class="lineNum"> 1119 </span> : : {</a>
<a name="1120"><span class="lineNum"> 1120 </span> :<span class="lineCov"> 34 : int error;</span></a>
<a name="1121"><span class="lineNum"> 1121 </span> :<span class="lineCov"> 34 : int status;</span></a>
<a name="1122"><span class="lineNum"> 1122 </span> : : </a>
<a name="1123"><span class="lineNum"> 1123 </span> : : /*</a>
<a name="1124"><span class="lineNum"> 1124 </span> : : * Linux wrongly insists the child be stopped</a>
<a name="1125"><span class="lineNum"> 1125 </span> : : * before detaching. Arghh. We go through hoops</a>
<a name="1126"><span class="lineNum"> 1126 </span> : : * to make a clean break of things.</a>
<a name="1127"><span class="lineNum"> 1127 </span> : : */</a>
<a name="1128"><span class="lineNum"> 1128 </span> : : </a>
<a name="1129"><span class="lineNum"> 1129 </span> [<span class="branchCov" title="Branch 0 was taken 28 times"> + </span><span class="branchCov" title="Branch 1 was taken 6 times"> + </span>]:<span class="lineCov"> 34 : if (!(tcp->flags & TCB_ATTACHED))</span></a>
<a name="1130"><span class="lineNum"> 1130 </span> :<span class="lineCov"> 28 : goto drop;</span></a>
<a name="1131"><span class="lineNum"> 1131 </span> : : </a>
<a name="1132"><span class="lineNum"> 1132 </span> : : /* We attached but possibly didn't see the expected SIGSTOP.</a>
<a name="1133"><span class="lineNum"> 1133 </span> : : * We must catch exactly one as otherwise the detached process</a>
<a name="1134"><span class="lineNum"> 1134 </span> : : * would be left stopped (process state T).</a>
<a name="1135"><span class="lineNum"> 1135 </span> : : */</a>
<a name="1136"><span class="lineNum"> 1136 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 6 times"> + </span>]:<span class="lineCov"> 6 : if (tcp->flags & TCB_IGNORE_ONE_SIGSTOP)</span></a>
<a name="1137"><span class="lineNum"> 1137 </span> :<span class="lineNoCov"> 0 : goto wait_loop;</span></a>
<a name="1138"><span class="lineNum"> 1138 </span> : : </a>
<a name="1139"><span class="lineNum"> 1139 </span> :<span class="lineCov"> 6 : error = ptrace(PTRACE_DETACH, tcp->pid, 0, 0);</span></a>
<a name="1140"><span class="lineNum"> 1140 </span> [<span class="branchCov" title="Branch 0 was taken 2 times"> + </span><span class="branchCov" title="Branch 1 was taken 4 times"> + </span>]:<span class="lineCov"> 6 : if (!error) {</span></a>
<a name="1141"><span class="lineNum"> 1141 </span> : : /* On a clear day, you can see forever. */</a>
<a name="1142"><span class="lineNum"> 1142 </span> :<span class="lineCov"> 2 : goto drop;</span></a>
<a name="1143"><span class="lineNum"> 1143 </span> : : }</a>
<a name="1144"><span class="lineNum"> 1144 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 4 times"> + </span>]:<span class="lineCov"> 4 : if (errno != ESRCH) {</span></a>
<a name="1145"><span class="lineNum"> 1145 </span> : : /* Shouldn't happen. */</a>
<a name="1146"><span class="lineNum"> 1146 </span> :<span class="lineNoCov"> 0 : perror_func_msg("ptrace(PTRACE_DETACH,%u)", tcp->pid);</span></a>
<a name="1147"><span class="lineNum"> 1147 </span> :<span class="lineNoCov"> 0 : goto drop;</span></a>
<a name="1148"><span class="lineNum"> 1148 </span> : : }</a>
<a name="1149"><span class="lineNum"> 1149 </span> : : /* ESRCH: process is either not stopped or doesn't exist. */</a>
<a name="1150"><span class="lineNum"> 1150 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 4 times"> + </span>]:<span class="lineCov"> 4 : if (my_tkill(tcp->pid, 0) < 0) {</span></a>
<a name="1151"><span class="lineNum"> 1151 </span> [<span class="branchNoExec" title="Branch 0 was not executed"> # </span><span class="branchNoExec" title="Branch 1 was not executed"> # </span>]:<span class="lineNoCov"> 0 : if (errno != ESRCH)</span></a>
<a name="1152"><span class="lineNum"> 1152 </span> : : /* Shouldn't happen. */</a>
<a name="1153"><span class="lineNum"> 1153 </span> :<span class="lineNoCov"> 0 : perror_func_msg("tkill(%u,0)", tcp->pid);</span></a>
<a name="1154"><span class="lineNum"> 1154 </span> : : /* else: process doesn't exist. */</a>
<a name="1155"><span class="lineNum"> 1155 </span> :<span class="lineNoCov"> 0 : goto drop;</span></a>
<a name="1156"><span class="lineNum"> 1156 </span> : : }</a>
<a name="1157"><span class="lineNum"> 1157 </span> : : /* Process is not stopped, need to stop it. */</a>
<a name="1158"><span class="lineNum"> 1158 </span> [<span class="branchCov" title="Branch 0 was taken 4 times"> + </span><span class="branchNoCov" title="Branch 1 was not taken"> - </span>]:<span class="lineCov"> 4 : if (use_seize) {</span></a>
<a name="1159"><span class="lineNum"> 1159 </span> : : /*</a>
<a name="1160"><span class="lineNum"> 1160 </span> : : * With SEIZE, tracee can be in group-stop already.</a>
<a name="1161"><span class="lineNum"> 1161 </span> : : * In this state sending it another SIGSTOP does nothing.</a>
<a name="1162"><span class="lineNum"> 1162 </span> : : * Need to use INTERRUPT.</a>
<a name="1163"><span class="lineNum"> 1163 </span> : : * Testcase: trying to ^C a "strace -p <stopped_process>".</a>
<a name="1164"><span class="lineNum"> 1164 </span> : : */</a>
<a name="1165"><span class="lineNum"> 1165 </span> :<span class="lineCov"> 4 : error = ptrace(PTRACE_INTERRUPT, tcp->pid, 0, 0);</span></a>
<a name="1166"><span class="lineNum"> 1166 </span> [<span class="branchCov" title="Branch 0 was taken 4 times"> + </span><span class="branchNoCov" title="Branch 1 was not taken"> - </span>]:<span class="lineCov"> 4 : if (!error)</span></a>
<a name="1167"><span class="lineNum"> 1167 </span> :<span class="lineCov"> 4 : goto wait_loop;</span></a>
<a name="1168"><span class="lineNum"> 1168 </span> [<span class="branchNoExec" title="Branch 0 was not executed"> # </span><span class="branchNoExec" title="Branch 1 was not executed"> # </span>]:<span class="lineNoCov"> 0 : if (errno != ESRCH)</span></a>
<a name="1169"><span class="lineNum"> 1169 </span> :<span class="lineNoCov"> 0 : perror_func_msg("ptrace(PTRACE_INTERRUPT,%u)", tcp->pid);</span></a>
<a name="1170"><span class="lineNum"> 1170 </span> : : } else {</a>
<a name="1171"><span class="lineNum"> 1171 </span> :<span class="lineNoCov"> 0 : error = my_tkill(tcp->pid, SIGSTOP);</span></a>
<a name="1172"><span class="lineNum"> 1172 </span> [<span class="branchNoExec" title="Branch 0 was not executed"> # </span><span class="branchNoExec" title="Branch 1 was not executed"> # </span>]:<span class="lineNoCov"> 0 : if (!error)</span></a>
<a name="1173"><span class="lineNum"> 1173 </span> :<span class="lineNoCov"> 0 : goto wait_loop;</span></a>
<a name="1174"><span class="lineNum"> 1174 </span> [<span class="branchNoExec" title="Branch 0 was not executed"> # </span><span class="branchNoExec" title="Branch 1 was not executed"> # </span>]:<span class="lineNoCov"> 0 : if (errno != ESRCH)</span></a>
<a name="1175"><span class="lineNum"> 1175 </span> :<span class="lineNoCov"> 0 : perror_func_msg("tkill(%u,SIGSTOP)", tcp->pid);</span></a>
<a name="1176"><span class="lineNum"> 1176 </span> : : }</a>
<a name="1177"><span class="lineNum"> 1177 </span> : : /* Either process doesn't exist, or some weird error. */</a>
<a name="1178"><span class="lineNum"> 1178 </span> :<span class="lineNoCov"> 0 : goto drop;</span></a>
<a name="1179"><span class="lineNum"> 1179 </span> : : </a>
<a name="1180"><span class="lineNum"> 1180 </span> : : wait_loop:</a>
<a name="1181"><span class="lineNum"> 1181 </span> : : /* We end up here in three cases:</a>
<a name="1182"><span class="lineNum"> 1182 </span> : : * 1. We sent PTRACE_INTERRUPT (use_seize case)</a>
<a name="1183"><span class="lineNum"> 1183 </span> : : * 2. We sent SIGSTOP (!use_seize)</a>
<a name="1184"><span class="lineNum"> 1184 </span> : : * 3. Attach SIGSTOP was already pending (TCB_IGNORE_ONE_SIGSTOP set)</a>
<a name="1185"><span class="lineNum"> 1185 </span> : : */</a>
<a name="1186"><span class="lineNum"> 1186 </span> :<span class="lineCov"> 4 : for (;;) {</span></a>
<a name="1187"><span class="lineNum"> 1187 </span> :<span class="lineCov"> 4 : unsigned int sig;</span></a>
<a name="1188"><span class="lineNum"> 1188 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 4 times"> + </span>]:<span class="lineCov"> 4 : if (waitpid(tcp->pid, &status, __WALL) < 0) {</span></a>
<a name="1189"><span class="lineNum"> 1189 </span> [<span class="branchNoExec" title="Branch 0 was not executed"> # </span><span class="branchNoExec" title="Branch 1 was not executed"> # </span>]:<span class="lineNoCov"> 0 : if (errno == EINTR)</span></a>
<a name="1190"><span class="lineNum"> 1190 </span> :<span class="lineNoCov"> 0 : continue;</span></a>
<a name="1191"><span class="lineNum"> 1191 </span> : : /*</a>
<a name="1192"><span class="lineNum"> 1192 </span> : : * if (errno == ECHILD) break;</a>
<a name="1193"><span class="lineNum"> 1193 </span> : : * ^^^ WRONG! We expect this PID to exist,</a>
<a name="1194"><span class="lineNum"> 1194 </span> : : * and want to emit a message otherwise:</a>
<a name="1195"><span class="lineNum"> 1195 </span> : : */</a>
<a name="1196"><span class="lineNum"> 1196 </span> :<span class="lineNoCov"> 0 : perror_func_msg("waitpid(%u)", tcp->pid);</span></a>
<a name="1197"><span class="lineNum"> 1197 </span> :<span class="lineNoCov"> 0 : break;</span></a>
<a name="1198"><span class="lineNum"> 1198 </span> : : }</a>
<a name="1199"><span class="lineNum"> 1199 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 4 times"> + </span>]:<span class="lineCov"> 4 : if (!WIFSTOPPED(status)) {</span></a>
<a name="1200"><span class="lineNum"> 1200 </span> : : /*</a>
<a name="1201"><span class="lineNum"> 1201 </span> : : * Tracee exited or was killed by signal.</a>
<a name="1202"><span class="lineNum"> 1202 </span> : : * We shouldn't normally reach this place:</a>
<a name="1203"><span class="lineNum"> 1203 </span> : : * we don't want to consume exit status.</a>
<a name="1204"><span class="lineNum"> 1204 </span> : : * Consider "strace -p PID" being ^C-ed:</a>
<a name="1205"><span class="lineNum"> 1205 </span> : : * we want merely to detach from PID.</a>
<a name="1206"><span class="lineNum"> 1206 </span> : : *</a>
<a name="1207"><span class="lineNum"> 1207 </span> : : * However, we _can_ end up here if tracee</a>
<a name="1208"><span class="lineNum"> 1208 </span> : : * was SIGKILLed.</a>
<a name="1209"><span class="lineNum"> 1209 </span> : : */</a>
<a name="1210"><span class="lineNum"> 1210 </span> : : break;</a>
<a name="1211"><span class="lineNum"> 1211 </span> : : }</a>
<a name="1212"><span class="lineNum"> 1212 </span> :<span class="lineCov"> 4 : sig = WSTOPSIG(status);</span></a>
<a name="1213"><span class="lineNum"> 1213 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 4 times"> + </span>]:<span class="lineCov"> 4 : debug_msg("detach wait: event:%d sig:%d",</span></a>
<a name="1214"><span class="lineNum"> 1214 </span> : : (unsigned) status >> 16, sig);</a>
<a name="1215"><span class="lineNum"> 1215 </span> [<span class="branchCov" title="Branch 0 was taken 4 times"> + </span><span class="branchNoCov" title="Branch 1 was not taken"> - </span>]:<span class="lineCov"> 4 : if (use_seize) {</span></a>
<a name="1216"><span class="lineNum"> 1216 </span> :<span class="lineCov"> 4 : unsigned event = (unsigned)status >> 16;</span></a>
<a name="1217"><span class="lineNum"> 1217 </span> [<span class="branchCov" title="Branch 0 was taken 2 times"> + </span><span class="branchCov" title="Branch 1 was taken 2 times"> + </span>]:<span class="lineCov"> 4 : if (event == PTRACE_EVENT_STOP /*&& sig == SIGTRAP*/) {</span></a>
<a name="1218"><span class="lineNum"> 1218 </span> : : /*</a>
<a name="1219"><span class="lineNum"> 1219 </span> : : * sig == SIGTRAP: PTRACE_INTERRUPT stop.</a>
<a name="1220"><span class="lineNum"> 1220 </span> : : * sig == other: process was already stopped</a>
<a name="1221"><span class="lineNum"> 1221 </span> : : * with this stopping sig (see tests/detach-stopped).</a>
<a name="1222"><span class="lineNum"> 1222 </span> : : * Looks like re-injecting this sig is not necessary</a>
<a name="1223"><span class="lineNum"> 1223 </span> : : * in DETACH for the tracee to remain stopped.</a>
<a name="1224"><span class="lineNum"> 1224 </span> : : */</a>
<a name="1225"><span class="lineNum"> 1225 </span> : : sig = 0;</a>
<a name="1226"><span class="lineNum"> 1226 </span> : : }</a>
<a name="1227"><span class="lineNum"> 1227 </span> : : /*</a>
<a name="1228"><span class="lineNum"> 1228 </span> : : * PTRACE_INTERRUPT is not guaranteed to produce</a>
<a name="1229"><span class="lineNum"> 1229 </span> : : * the above event if other ptrace-stop is pending.</a>
<a name="1230"><span class="lineNum"> 1230 </span> : : * See tests/detach-sleeping testcase:</a>
<a name="1231"><span class="lineNum"> 1231 </span> : : * strace got SIGINT while tracee is sleeping.</a>
<a name="1232"><span class="lineNum"> 1232 </span> : : * We sent PTRACE_INTERRUPT.</a>
<a name="1233"><span class="lineNum"> 1233 </span> : : * We see syscall exit, not PTRACE_INTERRUPT stop.</a>
<a name="1234"><span class="lineNum"> 1234 </span> : : * We won't get PTRACE_INTERRUPT stop</a>
<a name="1235"><span class="lineNum"> 1235 </span> : : * if we would CONT now. Need to DETACH.</a>
<a name="1236"><span class="lineNum"> 1236 </span> : : */</a>
<a name="1237"><span class="lineNum"> 1237 </span> [<span class="branchCov" title="Branch 0 was taken 2 times"> + </span><span class="branchNoCov" title="Branch 1 was not taken"> - </span>]:<span class="lineCov"> 2 : if (sig == syscall_trap_sig)</span></a>
<a name="1238"><span class="lineNum"> 1238 </span> :<span class="lineCov"> 2 : sig = 0;</span></a>
<a name="1239"><span class="lineNum"> 1239 </span> : : /* else: not sure in which case we can be here.</a>
<a name="1240"><span class="lineNum"> 1240 </span> : : * Signal stop? Inject it while detaching.</a>
<a name="1241"><span class="lineNum"> 1241 </span> : : */</a>
<a name="1242"><span class="lineNum"> 1242 </span> :<span class="lineCov"> 4 : ptrace_restart(PTRACE_DETACH, tcp, sig);</span></a>
<a name="1243"><span class="lineNum"> 1243 </span> :<span class="lineCov"> 4 : break;</span></a>
<a name="1244"><span class="lineNum"> 1244 </span> : : }</a>
<a name="1245"><span class="lineNum"> 1245 </span> : : /* Note: this check has to be after use_seize check */</a>
<a name="1246"><span class="lineNum"> 1246 </span> : : /* (else, in use_seize case SIGSTOP will be mistreated) */</a>
<a name="1247"><span class="lineNum"> 1247 </span> [<span class="branchNoExec" title="Branch 0 was not executed"> # </span><span class="branchNoExec" title="Branch 1 was not executed"> # </span>]:<span class="lineNoCov"> 0 : if (sig == SIGSTOP) {</span></a>
<a name="1248"><span class="lineNum"> 1248 </span> : : /* Detach, suppressing SIGSTOP */</a>
<a name="1249"><span class="lineNum"> 1249 </span> :<span class="lineNoCov"> 0 : ptrace_restart(PTRACE_DETACH, tcp, 0);</span></a>
<a name="1250"><span class="lineNum"> 1250 </span> :<span class="lineNoCov"> 0 : break;</span></a>
<a name="1251"><span class="lineNum"> 1251 </span> : : }</a>
<a name="1252"><span class="lineNum"> 1252 </span> [<span class="branchNoExec" title="Branch 0 was not executed"> # </span><span class="branchNoExec" title="Branch 1 was not executed"> # </span>]:<span class="lineNoCov"> 0 : if (sig == syscall_trap_sig)</span></a>
<a name="1253"><span class="lineNum"> 1253 </span> :<span class="lineNoCov"> 0 : sig = 0;</span></a>
<a name="1254"><span class="lineNum"> 1254 </span> : : /* Can't detach just yet, may need to wait for SIGSTOP */</a>
<a name="1255"><span class="lineNum"> 1255 </span> :<span class="lineNoCov"> 0 : error = ptrace_restart(PTRACE_CONT, tcp, sig);</span></a>
<a name="1256"><span class="lineNum"> 1256 </span> [<span class="branchNoExec" title="Branch 0 was not executed"> # </span><span class="branchNoExec" title="Branch 1 was not executed"> # </span>]:<span class="lineNoCov"> 0 : if (error < 0) {</span></a>
<a name="1257"><span class="lineNum"> 1257 </span> : : /* Should not happen.</a>
<a name="1258"><span class="lineNum"> 1258 </span> : : * Note: ptrace_restart returns 0 on ESRCH, so it's not it.</a>
<a name="1259"><span class="lineNum"> 1259 </span> : : * ptrace_restart already emitted error message.</a>
<a name="1260"><span class="lineNum"> 1260 </span> : : */</a>
<a name="1261"><span class="lineNum"> 1261 </span> : : break;</a>
<a name="1262"><span class="lineNum"> 1262 </span> : : }</a>
<a name="1263"><span class="lineNum"> 1263 </span> : : }</a>
<a name="1264"><span class="lineNum"> 1264 </span> : : </a>
<a name="1265"><span class="lineNum"> 1265 </span> :<span class="lineNoCov"> 0 : drop:</span></a>
<a name="1266"><span class="lineNum"> 1266 </span> [<span class="branchCov" title="Branch 0 was taken 31 times"> + </span><span class="branchCov" title="Branch 1 was taken 3 times"> + </span>]:<span class="lineCov"> 34 : if (!is_number_in_set(QUIET_ATTACH, quiet_set)</span></a>
<a name="1267"><span class="lineNum"> 1267 </span> [<span class="branchCov" title="Branch 0 was taken 5 times"> + </span><span class="branchCov" title="Branch 1 was taken 26 times"> + </span>]:<span class="lineCov"> 31 : && (tcp->flags & TCB_ATTACHED))</span></a>
<a name="1268"><span class="lineNum"> 1268 </span> :<span class="lineCov"> 5 : error_msg("Process %u detached", tcp->pid);</span></a>
<a name="1269"><span class="lineNum"> 1269 </span> : : </a>
<a name="1270"><span class="lineNum"> 1270 </span> :<span class="lineCov"> 34 : droptcb(tcp);</span></a>
<a name="1271"><span class="lineNum"> 1271 </span> :<span class="lineCov"> 34 : }</span></a>
<a name="1272"><span class="lineNum"> 1272 </span> : : </a>
<a name="1273"><span class="lineNum"> 1273 </span> : : static void</a>
<a name="1274"><span class="lineNum"> 1274 </span> :<span class="lineCov"> 44 : process_opt_p_list(char *opt)</span></a>
<a name="1275"><span class="lineNum"> 1275 </span> : : {</a>
<a name="1276"><span class="lineNum"> 1276 </span> [<span class="branchCov" title="Branch 0 was taken 46 times"> + </span><span class="branchNoCov" title="Branch 1 was not taken"> - </span>]:<span class="lineCov"> 46 : while (*opt) {</span></a>
<a name="1277"><span class="lineNum"> 1277 </span> : : /*</a>
<a name="1278"><span class="lineNum"> 1278 </span> : : * We accept -p PID,PID; -p "`pidof PROG`"; -p "`pgrep PROG`".</a>
<a name="1279"><span class="lineNum"> 1279 </span> : : * pidof uses space as delim, pgrep uses newline. :(</a>
<a name="1280"><span class="lineNum"> 1280 </span> : : */</a>
<a name="1281"><span class="lineNum"> 1281 </span> :<span class="lineCov"> 46 : int pid;</span></a>
<a name="1282"><span class="lineNum"> 1282 </span> :<span class="lineCov"> 46 : char *delim = opt + strcspn(opt, "\n\t ,");</span></a>
<a name="1283"><span class="lineNum"> 1283 </span> :<span class="lineCov"> 46 : char c = *delim;</span></a>
<a name="1284"><span class="lineNum"> 1284 </span> : : </a>
<a name="1285"><span class="lineNum"> 1285 </span> :<span class="lineCov"> 46 : *delim = '\0';</span></a>
<a name="1286"><span class="lineNum"> 1286 </span> :<span class="lineCov"> 46 : pid = string_to_uint(opt);</span></a>
<a name="1287"><span class="lineNum"> 1287 </span> [<span class="branchCov" title="Branch 0 was taken 8 times"> + </span><span class="branchCov" title="Branch 1 was taken 38 times"> + </span>]:<span class="lineCov"> 46 : if (pid <= 0) {</span></a>
<a name="1288"><span class="lineNum"> 1288 </span> :<span class="lineCov"> 8 : error_msg_and_die("Invalid process id: '%s'", opt);</span></a>
<a name="1289"><span class="lineNum"> 1289 </span> : : }</a>
<a name="1290"><span class="lineNum"> 1290 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 38 times"> + </span>]:<span class="lineCov"> 38 : if (pid == strace_tracer_pid) {</span></a>
<a name="1291"><span class="lineNum"> 1291 </span> :<span class="lineNoCov"> 0 : error_msg_and_die("I'm sorry, I can't let you do that, Dave.");</span></a>
<a name="1292"><span class="lineNum"> 1292 </span> : : }</a>
<a name="1293"><span class="lineNum"> 1293 </span> :<span class="lineCov"> 38 : *delim = c;</span></a>
<a name="1294"><span class="lineNum"> 1294 </span> :<span class="lineCov"> 38 : alloctcb(pid);</span></a>
<a name="1295"><span class="lineNum"> 1295 </span> [<span class="branchCov" title="Branch 0 was taken 2 times"> + </span><span class="branchCov" title="Branch 1 was taken 36 times"> + </span>]:<span class="lineCov"> 38 : if (c == '\0')</span></a>
<a name="1296"><span class="lineNum"> 1296 </span> : : break;</a>
<a name="1297"><span class="lineNum"> 1297 </span> :<span class="lineCov"> 2 : opt = delim + 1;</span></a>
<a name="1298"><span class="lineNum"> 1298 </span> : : }</a>
<a name="1299"><span class="lineNum"> 1299 </span> :<span class="lineCov"> 36 : }</span></a>
<a name="1300"><span class="lineNum"> 1300 </span> : : </a>
<a name="1301"><span class="lineNum"> 1301 </span> : : static void</a>
<a name="1302"><span class="lineNum"> 1302 </span> :<span class="lineCov"> 18 : attach_tcb(struct tcb *const tcp)</span></a>
<a name="1303"><span class="lineNum"> 1303 </span> : : {</a>
<a name="1304"><span class="lineNum"> 1304 </span> :<span class="lineCov"> 18 : const char *ptrace_attach_cmd;</span></a>
<a name="1305"><span class="lineNum"> 1305 </span> : : </a>
<a name="1306"><span class="lineNum"> 1306 </span> [<span class="branchCov" title="Branch 0 was taken 1 time"> + </span><span class="branchCov" title="Branch 1 was taken 17 times"> + </span>]:<span class="lineCov"> 18 : if (ptrace_attach_or_seize(tcp->pid, &ptrace_attach_cmd) < 0) {</span></a>
<a name="1307"><span class="lineNum"> 1307 </span> :<span class="lineCov"> 1 : perror_msg("attach: ptrace(%s, %d)",</span></a>
<a name="1308"><span class="lineNum"> 1308 </span> : : ptrace_attach_cmd, tcp->pid);</a>
<a name="1309"><span class="lineNum"> 1309 </span> :<span class="lineCov"> 1 : droptcb(tcp);</span></a>
<a name="1310"><span class="lineNum"> 1310 </span> :<span class="lineCov"> 1 : return;</span></a>
<a name="1311"><span class="lineNum"> 1311 </span> : : }</a>
<a name="1312"><span class="lineNum"> 1312 </span> : : </a>
<a name="1313"><span class="lineNum"> 1313 </span> :<span class="lineCov"> 17 : after_successful_attach(tcp, TCB_GRABBED | post_attach_sigstop);</span></a>
<a name="1314"><span class="lineNum"> 1314 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 17 times"> + </span>]:<span class="lineCov"> 17 : debug_msg("attach to pid %d (main) succeeded", tcp->pid);</span></a>
<a name="1315"><span class="lineNum"> 1315 </span> : : </a>
<a name="1316"><span class="lineNum"> 1316 </span> :<span class="lineCov"> 17 : static const char task_path[] = "/proc/%d/task";</span></a>
<a name="1317"><span class="lineNum"> 1317 </span> :<span class="lineCov"> 17 : char procdir[sizeof(task_path) + sizeof(int) * 3];</span></a>
<a name="1318"><span class="lineNum"> 1318 </span> :<span class="lineCov"> 17 : DIR *dir;</span></a>
<a name="1319"><span class="lineNum"> 1319 </span> :<span class="lineCov"> 17 : unsigned int ntid = 0, nerr = 0;</span></a>
<a name="1320"><span class="lineNum"> 1320 </span> : : </a>
<a name="1321"><span class="lineNum"> 1321 </span> [<span class="branchCov" title="Branch 0 was taken 3 times"> + </span><span class="branchCov" title="Branch 1 was taken 14 times"> + </span><span class="branchCov" title="Branch 2 was taken 3 times"> + </span><span class="branchNoCov" title="Branch 3 was not taken"> - </span> :<span class="lineCov"> 20 : if (followfork && tcp->pid != strace_child &&</span></a>
<span class="lineNum"> </span> <span class="branchCov" title="Branch 4 was taken 3 times"> + </span><span class="branchNoCov" title="Branch 5 was not taken"> - </span>]
<a name="1322"><span class="lineNum"> 1322 </span> :<span class="lineCov"> 3 : xsprintf(procdir, task_path, get_proc_pid(tcp->pid)) > 0 &&</span></a>
<a name="1323"><span class="lineNum"> 1323 </span> [<span class="branchCov" title="Branch 0 was taken 3 times"> + </span><span class="branchNoCov" title="Branch 1 was not taken"> - </span>]:<span class="lineCov"> 3 : (dir = opendir(procdir)) != NULL) {</span></a>
<a name="1324"><span class="lineNum"> 1324 </span> : : struct_dirent *de;</a>
<a name="1325"><span class="lineNum"> 1325 </span> : : </a>
<a name="1326"><span class="lineNum"> 1326 </span> [<span class="branchCov" title="Branch 0 was taken 12 times"> + </span><span class="branchCov" title="Branch 1 was taken 3 times"> + </span>]:<span class="lineCov"> 15 : while ((de = read_dir(dir)) != NULL) {</span></a>
<a name="1327"><span class="lineNum"> 1327 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 12 times"> + </span>]:<span class="lineCov"> 12 : if (de->d_fileno == 0)</span></a>
<a name="1328"><span class="lineNum"> 1328 </span> :<span class="lineNoCov"> 0 : continue;</span></a>
<a name="1329"><span class="lineNum"> 1329 </span> : : </a>
<a name="1330"><span class="lineNum"> 1330 </span> :<span class="lineCov"> 12 : int tid = string_to_uint(de->d_name);</span></a>
<a name="1331"><span class="lineNum"> 1331 </span> [<span class="branchCov" title="Branch 0 was taken 6 times"> + </span><span class="branchCov" title="Branch 1 was taken 6 times"> + </span><span class="branchCov" title="Branch 2 was taken 3 times"> + </span><span class="branchCov" title="Branch 3 was taken 3 times"> + </span>]:<span class="lineCov"> 12 : if (tid <= 0 || tid == tcp->pid)</span></a>
<a name="1332"><span class="lineNum"> 1332 </span> :<span class="lineCov"> 9 : continue;</span></a>
<a name="1333"><span class="lineNum"> 1333 </span> : : </a>
<a name="1334"><span class="lineNum"> 1334 </span> :<span class="lineCov"> 3 : ++ntid;</span></a>
<a name="1335"><span class="lineNum"> 1335 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 3 times"> + </span>]:<span class="lineCov"> 3 : if (ptrace_attach_or_seize(tid, &ptrace_attach_cmd) < 0)</span></a>
<a name="1336"><span class="lineNum"> 1336 </span> : : {</a>
<a name="1337"><span class="lineNum"> 1337 </span> :<span class="lineNoCov"> 0 : ++nerr;</span></a>
<a name="1338"><span class="lineNum"> 1338 </span> [<span class="branchNoExec" title="Branch 0 was not executed"> # </span><span class="branchNoExec" title="Branch 1 was not executed"> # </span>]:<span class="lineNoCov"> 0 : debug_perror_msg("attach: ptrace(%s, %d)",</span></a>
<a name="1339"><span class="lineNum"> 1339 </span> : : ptrace_attach_cmd, tid);</a>
<a name="1340"><span class="lineNum"> 1340 </span> :<span class="lineNoCov"> 0 : continue;</span></a>
<a name="1341"><span class="lineNum"> 1341 </span> : : }</a>
<a name="1342"><span class="lineNum"> 1342 </span> : : </a>
<a name="1343"><span class="lineNum"> 1343 </span> :<span class="lineCov"> 3 : after_successful_attach(alloctcb(tid),</span></a>
<a name="1344"><span class="lineNum"> 1344 </span> :<span class="lineCov"> 3 : TCB_GRABBED | post_attach_sigstop);</span></a>
<a name="1345"><span class="lineNum"> 1345 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 3 times"> + </span>]:<span class="lineCov"> 18 : debug_msg("attach to pid %d succeeded", tid);</span></a>
<a name="1346"><span class="lineNum"> 1346 </span> : : }</a>
<a name="1347"><span class="lineNum"> 1347 </span> : : </a>
<a name="1348"><span class="lineNum"> 1348 </span> :<span class="lineCov"> 3 : closedir(dir);</span></a>
<a name="1349"><span class="lineNum"> 1349 </span> : : }</a>
<a name="1350"><span class="lineNum"> 1350 </span> : : </a>
<a name="1351"><span class="lineNum"> 1351 </span> [<span class="branchCov" title="Branch 0 was taken 7 times"> + </span><span class="branchCov" title="Branch 1 was taken 10 times"> + </span>]:<span class="lineCov"> 17 : if (!is_number_in_set(QUIET_ATTACH, quiet_set)) {</span></a>
<a name="1352"><span class="lineNum"> 1352 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 7 times"> + </span>]:<span class="lineCov"> 7 : if (ntid > nerr)</span></a>
<a name="1353"><span class="lineNum"> 1353 </span> :<span class="lineNoCov"> 0 : error_msg("Process %u attached"</span></a>
<a name="1354"><span class="lineNum"> 1354 </span> : : " with %u threads",</a>
<a name="1355"><span class="lineNum"> 1355 </span> :<span class="lineNoCov"> 0 : tcp->pid, ntid - nerr + 1);</span></a>
<a name="1356"><span class="lineNum"> 1356 </span> : : else</a>
<a name="1357"><span class="lineNum"> 1357 </span> :<span class="lineCov"> 7 : error_msg("Process %u attached",</span></a>
<a name="1358"><span class="lineNum"> 1358 </span> : : tcp->pid);</a>
<a name="1359"><span class="lineNum"> 1359 </span> : : }</a>
<a name="1360"><span class="lineNum"> 1360 </span> : : }</a>
<a name="1361"><span class="lineNum"> 1361 </span> : : </a>
<a name="1362"><span class="lineNum"> 1362 </span> : : static void</a>
<a name="1363"><span class="lineNum"> 1363 </span> :<span class="lineCov"> 17330 : startup_attach(void)</span></a>
<a name="1364"><span class="lineNum"> 1364 </span> : : {</a>
<a name="1365"><span class="lineNum"> 1365 </span> :<span class="lineCov"> 17330 : pid_t parent_pid = strace_tracer_pid;</span></a>
<a name="1366"><span class="lineNum"> 1366 </span> :<span class="lineCov"> 17330 : struct tcb *tcp;</span></a>
<a name="1367"><span class="lineNum"> 1367 </span> : : </a>
<a name="1368"><span class="lineNum"> 1368 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 17330 times"> + </span>]:<span class="lineCov"> 17330 : if (daemonized_tracer) {</span></a>
<a name="1369"><span class="lineNum"> 1369 </span> :<span class="lineNoCov"> 0 : pid_t pid = fork();</span></a>
<a name="1370"><span class="lineNum"> 1370 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 8 times"> + </span>]:<span class="lineCov"> 8 : if (pid < 0)</span></a>
<a name="1371"><span class="lineNum"> 1371 </span> :<span class="lineNoCov"> 0 : perror_func_msg_and_die("fork");</span></a>
<a name="1372"><span class="lineNum"> 1372 </span> : : </a>
<a name="1373"><span class="lineNum"> 1373 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 8 times"> + </span>]:<span class="lineCov"> 8 : if (pid) { /* parent */</span></a>
<a name="1374"><span class="lineNum"> 1374 </span> : : /*</a>
<a name="1375"><span class="lineNum"> 1375 </span> : : * Wait for grandchild to attach to straced process</a>
<a name="1376"><span class="lineNum"> 1376 </span> : : * (grandparent). Grandchild SIGKILLs us after it attached.</a>
<a name="1377"><span class="lineNum"> 1377 </span> : : * Grandparent's wait() is unblocked by our death,</a>
<a name="1378"><span class="lineNum"> 1378 </span> : : * it proceeds to exec the straced program.</a>
<a name="1379"><span class="lineNum"> 1379 </span> : : */</a>
<a name="1380"><span class="lineNum"> 1380 </span> :<span class="lineNoCov"> 0 : pause();</span></a>
<a name="1381"><span class="lineNum"> 1381 </span> :<span class="lineNoCov"> 0 : _exit(0); /* paranoia */</span></a>
<a name="1382"><span class="lineNum"> 1382 </span> : : }</a>
<a name="1383"><span class="lineNum"> 1383 </span> : : /* grandchild */</a>
<a name="1384"><span class="lineNum"> 1384 </span> : : /* We will be the tracer process. Remember our new pid: */</a>
<a name="1385"><span class="lineNum"> 1385 </span> :<span class="lineCov"> 8 : strace_tracer_pid = getpid();</span></a>
<a name="1386"><span class="lineNum"> 1386 </span> : : </a>
<a name="1387"><span class="lineNum"> 1387 </span> [<span class="branchCov" title="Branch 0 was taken 2 times"> + </span><span class="branchCov" title="Branch 1 was taken 3 times"> + </span><span class="branchCov" title="Branch 2 was taken 3 times"> + </span>]:<span class="lineCov"> 8 : switch (daemonized_tracer) {</span></a>
<a name="1388"><span class="lineNum"> 1388 </span> :<span class="lineCov"> 3 : case DAEMONIZE_NEW_PGROUP:</span></a>
<a name="1389"><span class="lineNum"> 1389 </span> : : /*</a>
<a name="1390"><span class="lineNum"> 1390 </span> : : * If -D is passed twice, create a new process group,</a>
<a name="1391"><span class="lineNum"> 1391 </span> : : * so we won't be killed by kill(0, ...).</a>
<a name="1392"><span class="lineNum"> 1392 </span> : : */</a>
<a name="1393"><span class="lineNum"> 1393 </span> [<span class="branchCov" title="Branch 0 was taken 3 times"> + </span><span class="branchNoCov" title="Branch 1 was not taken"> - </span>]:<span class="lineCov"> 3 : if (setpgid(0, 0) < 0)</span></a>
<a name="1394"><span class="lineNum"> 1394 </span> :<span class="lineNoCov"> 0 : perror_msg_and_die("Cannot create a new"</span></a>
<a name="1395"><span class="lineNum"> 1395 </span> : : " process group");</a>
<a name="1396"><span class="lineNum"> 1396 </span> : : break;</a>
<a name="1397"><span class="lineNum"> 1397 </span> :<span class="lineCov"> 3 : case DAEMONIZE_NEW_SESSION:</span></a>
<a name="1398"><span class="lineNum"> 1398 </span> : : /*</a>
<a name="1399"><span class="lineNum"> 1399 </span> : : * If -D is passed thrice, create a new session,</a>
<a name="1400"><span class="lineNum"> 1400 </span> : : * so we won't be killed upon session termination.</a>
<a name="1401"><span class="lineNum"> 1401 </span> : : */</a>
<a name="1402"><span class="lineNum"> 1402 </span> [<span class="branchCov" title="Branch 0 was taken 3 times"> + </span><span class="branchNoCov" title="Branch 1 was not taken"> - </span>]:<span class="lineCov"> 3 : if (setsid() < 0)</span></a>
<a name="1403"><span class="lineNum"> 1403 </span> :<span class="lineNoCov"> 0 : perror_msg_and_die("Cannot create a new"</span></a>
<a name="1404"><span class="lineNum"> 1404 </span> : : " session");</a>
<a name="1405"><span class="lineNum"> 1405 </span> : : break;</a>
<a name="1406"><span class="lineNum"> 1406 </span> : : }</a>
<a name="1407"><span class="lineNum"> 1407 </span> : : }</a>
<a name="1408"><span class="lineNum"> 1408 </span> : : </a>
<a name="1409"><span class="lineNum"> 1409 </span> [<span class="branchCov" title="Branch 0 was taken 277408 times"> + </span><span class="branchCov" title="Branch 1 was taken 17338 times"> + </span>]:<span class="lineCov"> 294746 : for (unsigned int tcbi = 0; tcbi < tcbtabsize; ++tcbi) {</span></a>
<a name="1410"><span class="lineNum"> 1410 </span> :<span class="lineCov"> 277408 : tcp = tcbtab[tcbi];</span></a>
<a name="1411"><span class="lineNum"> 1411 </span> : : </a>
<a name="1412"><span class="lineNum"> 1412 </span> [<span class="branchCov" title="Branch 0 was taken 260064 times"> + </span><span class="branchCov" title="Branch 1 was taken 17344 times"> + </span>]:<span class="lineCov"> 277408 : if (!tcp->pid)</span></a>
<a name="1413"><span class="lineNum"> 1413 </span> :<span class="lineCov"> 260064 : continue;</span></a>
<a name="1414"><span class="lineNum"> 1414 </span> : : </a>
<a name="1415"><span class="lineNum"> 1415 </span> : : /* Is this a process we should attach to, but not yet attached? */</a>
<a name="1416"><span class="lineNum"> 1416 </span> [<span class="branchCov" title="Branch 0 was taken 17326 times"> + </span><span class="branchCov" title="Branch 1 was taken 18 times"> + </span>]:<span class="lineCov"> 17344 : if (tcp->flags & TCB_ATTACHED)</span></a>
<a name="1417"><span class="lineNum"> 1417 </span> :<span class="lineCov"> 17326 : continue; /* no, we already attached it */</span></a>
<a name="1418"><span class="lineNum"> 1418 </span> : : </a>
<a name="1419"><span class="lineNum"> 1419 </span> [<span class="branchCov" title="Branch 0 was taken 18 times"> + </span><span class="branchNoCov" title="Branch 1 was not taken"> - </span><span class="branchNoCov" title="Branch 2 was not taken"> - </span><span class="branchCov" title="Branch 3 was taken 18 times"> + </span>]:<span class="lineCov"> 18 : if (tcp->pid == parent_pid || tcp->pid == strace_tracer_pid) {</span></a>
<a name="1420"><span class="lineNum"> 1420 </span> :<span class="lineNoCov"> 0 : errno = EPERM;</span></a>
<a name="1421"><span class="lineNum"> 1421 </span> :<span class="lineNoCov"> 0 : perror_msg("attach: pid %d", tcp->pid);</span></a>
<a name="1422"><span class="lineNum"> 1422 </span> :<span class="lineNoCov"> 0 : droptcb(tcp);</span></a>
<a name="1423"><span class="lineNum"> 1423 </span> :<span class="lineNoCov"> 0 : continue;</span></a>
<a name="1424"><span class="lineNum"> 1424 </span> : : }</a>
<a name="1425"><span class="lineNum"> 1425 </span> : : </a>
<a name="1426"><span class="lineNum"> 1426 </span> :<span class="lineCov"> 18 : attach_tcb(tcp);</span></a>
<a name="1427"><span class="lineNum"> 1427 </span> : : </a>
<a name="1428"><span class="lineNum"> 1428 </span> [<span class="branchCov" title="Branch 0 was taken 18 times"> + </span><span class="branchNoCov" title="Branch 1 was not taken"> - </span>]:<span class="lineCov"> 18 : if (interrupted)</span></a>
<a name="1429"><span class="lineNum"> 1429 </span> : : return;</a>
<a name="1430"><span class="lineNum"> 1430 </span> : : } /* for each tcbtab[] */</a>
<a name="1431"><span class="lineNum"> 1431 </span> : : </a>
<a name="1432"><span class="lineNum"> 1432 </span> [<span class="branchCov" title="Branch 0 was taken 8 times"> + </span><span class="branchCov" title="Branch 1 was taken 17330 times"> + </span>]:<span class="lineCov"> 17338 : if (daemonized_tracer) {</span></a>
<a name="1433"><span class="lineNum"> 1433 </span> : : /*</a>
<a name="1434"><span class="lineNum"> 1434 </span> : : * Make parent go away.</a>
<a name="1435"><span class="lineNum"> 1435 </span> : : * Also makes grandparent's wait() unblock.</a>
<a name="1436"><span class="lineNum"> 1436 </span> : : */</a>
<a name="1437"><span class="lineNum"> 1437 </span> :<span class="lineCov"> 8 : kill(parent_pid, SIGKILL);</span></a>
<a name="1438"><span class="lineNum"> 1438 </span> :<span class="lineCov"> 8 : strace_child = 0;</span></a>
<a name="1439"><span class="lineNum"> 1439 </span> : : }</a>
<a name="1440"><span class="lineNum"> 1440 </span> : : }</a>
<a name="1441"><span class="lineNum"> 1441 </span> : : </a>
<a name="1442"><span class="lineNum"> 1442 </span> : : /* Stack-o-phobic exec helper, in the hope to work around</a>
<a name="1443"><span class="lineNum"> 1443 </span> : : * NOMMU + "daemonized tracer" difficulty.</a>
<a name="1444"><span class="lineNum"> 1444 </span> : : */</a>
<a name="1445"><span class="lineNum"> 1445 </span> : : struct exec_params {</a>
<a name="1446"><span class="lineNum"> 1446 </span> : : int fd_to_close;</a>
<a name="1447"><span class="lineNum"> 1447 </span> : : uid_t run_euid;</a>
<a name="1448"><span class="lineNum"> 1448 </span> : : gid_t run_egid;</a>
<a name="1449"><span class="lineNum"> 1449 </span> : : char **argv;</a>
<a name="1450"><span class="lineNum"> 1450 </span> : : char **env;</a>
<a name="1451"><span class="lineNum"> 1451 </span> : : char *pathname;</a>
<a name="1452"><span class="lineNum"> 1452 </span> : : struct sigaction child_sa;</a>
<a name="1453"><span class="lineNum"> 1453 </span> : : };</a>
<a name="1454"><span class="lineNum"> 1454 </span> : : static struct exec_params params_for_tracee;</a>
<a name="1455"><span class="lineNum"> 1455 </span> : : </a>
<a name="1456"><span class="lineNum"> 1456 </span> : : static void ATTRIBUTE_NOINLINE ATTRIBUTE_NORETURN</a>
<a name="1457"><span class="lineNum"> 1457 </span> :<span class="lineCov"> 17337 : exec_or_die(void)</span></a>
<a name="1458"><span class="lineNum"> 1458 </span> : : {</a>
<a name="1459"><span class="lineNum"> 1459 </span> :<span class="lineCov"> 17337 : struct exec_params *params = ¶ms_for_tracee;</span></a>
<a name="1460"><span class="lineNum"> 1460 </span> : : </a>
<a name="1461"><span class="lineNum"> 1461 </span> [<span class="branchCov" title="Branch 0 was taken 14914 times"> + </span><span class="branchCov" title="Branch 1 was taken 2423 times"> + </span>]:<span class="lineCov"> 17337 : if (params->fd_to_close >= 0)</span></a>
<a name="1462"><span class="lineNum"> 1462 </span> :<span class="lineCov"> 14914 : close(params->fd_to_close);</span></a>
<a name="1463"><span class="lineNum"> 1463 </span> [<span class="branchCov" title="Branch 0 was taken 17328 times"> + </span><span class="branchCov" title="Branch 1 was taken 9 times"> + </span><span class="branchNoCov" title="Branch 2 was not taken"> - </span><span class="branchCov" title="Branch 3 was taken 17328 times"> + </span>]:<span class="lineCov"> 17337 : if (!daemonized_tracer && !use_seize) {</span></a>
<a name="1464"><span class="lineNum"> 1464 </span> [<span class="branchNoExec" title="Branch 0 was not executed"> # </span><span class="branchNoExec" title="Branch 1 was not executed"> # </span>]:<span class="lineNoCov"> 0 : if (ptrace(PTRACE_TRACEME, 0L, 0L, 0L) < 0) {</span></a>
<a name="1465"><span class="lineNum"> 1465 </span> :<span class="lineNoCov"> 0 : perror_msg_and_die("ptrace(PTRACE_TRACEME, ...)");</span></a>
<a name="1466"><span class="lineNum"> 1466 </span> : : }</a>
<a name="1467"><span class="lineNum"> 1467 </span> : : }</a>
<a name="1468"><span class="lineNum"> 1468 </span> : : </a>
<a name="1469"><span class="lineNum"> 1469 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 17337 times"> + </span>]:<span class="lineCov"> 17337 : if (username != NULL) {</span></a>
<a name="1470"><span class="lineNum"> 1470 </span> : : /*</a>
<a name="1471"><span class="lineNum"> 1471 </span> : : * It is important to set groups before we</a>
<a name="1472"><span class="lineNum"> 1472 </span> : : * lose privileges on setuid.</a>
<a name="1473"><span class="lineNum"> 1473 </span> : : */</a>
<a name="1474"><span class="lineNum"> 1474 </span> [<span class="branchNoExec" title="Branch 0 was not executed"> # </span><span class="branchNoExec" title="Branch 1 was not executed"> # </span>]:<span class="lineNoCov"> 0 : if (initgroups(username, run_gid) < 0) {</span></a>
<a name="1475"><span class="lineNum"> 1475 </span> :<span class="lineNoCov"> 0 : perror_msg_and_die("initgroups");</span></a>
<a name="1476"><span class="lineNum"> 1476 </span> : : }</a>
<a name="1477"><span class="lineNum"> 1477 </span> [<span class="branchNoExec" title="Branch 0 was not executed"> # </span><span class="branchNoExec" title="Branch 1 was not executed"> # </span>]:<span class="lineNoCov"> 0 : if (setregid(run_gid, params->run_egid) < 0) {</span></a>
<a name="1478"><span class="lineNum"> 1478 </span> :<span class="lineNoCov"> 0 : perror_msg_and_die("setregid");</span></a>
<a name="1479"><span class="lineNum"> 1479 </span> : : }</a>
<a name="1480"><span class="lineNum"> 1480 </span> [<span class="branchNoExec" title="Branch 0 was not executed"> # </span><span class="branchNoExec" title="Branch 1 was not executed"> # </span>]:<span class="lineNoCov"> 0 : if (setreuid(run_uid, params->run_euid) < 0) {</span></a>
<a name="1481"><span class="lineNum"> 1481 </span> :<span class="lineNoCov"> 0 : perror_msg_and_die("setreuid");</span></a>
<a name="1482"><span class="lineNum"> 1482 </span> : : }</a>
<a name="1483"><span class="lineNum"> 1483 </span> [<span class="branchCov" title="Branch 0 was taken 17290 times"> + </span><span class="branchCov" title="Branch 1 was taken 47 times"> + </span>]:<span class="lineCov"> 17337 : } else if (geteuid() != 0)</span></a>
<a name="1484"><span class="lineNum"> 1484 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 17290 times"> + </span>]:<span class="lineCov"> 17290 : if (setreuid(run_uid, run_uid) < 0) {</span></a>
<a name="1485"><span class="lineNum"> 1485 </span> :<span class="lineNoCov"> 0 : perror_msg_and_die("setreuid");</span></a>
<a name="1486"><span class="lineNum"> 1486 </span> : : }</a>
<a name="1487"><span class="lineNum"> 1487 </span> : : </a>
<a name="1488"><span class="lineNum"> 1488 </span> [<span class="branchCov" title="Branch 0 was taken 17328 times"> + </span><span class="branchCov" title="Branch 1 was taken 9 times"> + </span>]:<span class="lineCov"> 17337 : if (!daemonized_tracer) {</span></a>
<a name="1489"><span class="lineNum"> 1489 </span> : : /*</a>
<a name="1490"><span class="lineNum"> 1490 </span> : : * Induce a ptrace stop. Tracer (our parent)</a>
<a name="1491"><span class="lineNum"> 1491 </span> : : * will resume us with PTRACE_SYSCALL and display</a>
<a name="1492"><span class="lineNum"> 1492 </span> : : * the immediately following execve syscall.</a>
<a name="1493"><span class="lineNum"> 1493 </span> : : * Can't do this on NOMMU systems, we are after</a>
<a name="1494"><span class="lineNum"> 1494 </span> : : * vfork: parent is blocked, stopping would deadlock.</a>
<a name="1495"><span class="lineNum"> 1495 </span> : : */</a>
<a name="1496"><span class="lineNum"> 1496 </span> :<span class="lineCov"> 17328 : if (!NOMMU_SYSTEM)</span></a>
<a name="1497"><span class="lineNum"> 1497 </span> :<span class="lineCov"> 17328 : kill(getpid(), SIGSTOP);</span></a>
<a name="1498"><span class="lineNum"> 1498 </span> : : } else {</a>
<a name="1499"><span class="lineNum"> 1499 </span> :<span class="lineCov"> 9 : alarm(3);</span></a>
<a name="1500"><span class="lineNum"> 1500 </span> : : /* we depend on SIGCHLD set to SIG_DFL by init code */</a>
<a name="1501"><span class="lineNum"> 1501 </span> : : /* if it happens to be SIG_IGN'ed, wait won't block */</a>
<a name="1502"><span class="lineNum"> 1502 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 9 times"> + </span><span class="branchNoCov" title="Branch 2 was not taken"> - </span><span class="branchNoCov" title="Branch 3 was not taken"> - </span>]:<span class="lineCov"> 9 : while (wait(NULL) < 0 && errno == EINTR)</span></a>
<a name="1503"><span class="lineNum"> 1503 </span> : : ;</a>
<a name="1504"><span class="lineNum"> 1504 </span> :<span class="lineCov"> 9 : alarm(0);</span></a>
<a name="1505"><span class="lineNum"> 1505 </span> : : }</a>
<a name="1506"><span class="lineNum"> 1506 </span> : : </a>
<a name="1507"><span class="lineNum"> 1507 </span> [<span class="branchCov" title="Branch 0 was taken 5 times"> + </span><span class="branchCov" title="Branch 1 was taken 17332 times"> + </span>]:<span class="lineCov"> 17337 : if (params_for_tracee.child_sa.sa_handler != SIG_DFL)</span></a>
<a name="1508"><span class="lineNum"> 1508 </span> :<span class="lineCov"> 5 : sigaction(SIGCHLD, ¶ms_for_tracee.child_sa, NULL);</span></a>
<a name="1509"><span class="lineNum"> 1509 </span> : : </a>
<a name="1510"><span class="lineNum"> 1510 </span> [<span class="branchCov" title="Branch 0 was taken 12 times"> + </span><span class="branchCov" title="Branch 1 was taken 17325 times"> + </span><span class="branchCov" title="Branch 2 was taken 12 times"> + </span><span class="branchNoCov" title="Branch 3 was not taken"> - </span>]:<span class="lineCov"> 17349 : debug_msg("seccomp filter %s",</span></a>
<a name="1511"><span class="lineNum"> 1511 </span> : : seccomp_filtering ? "enabled" : "disabled");</a>
<a name="1512"><span class="lineNum"> 1512 </span> [<span class="branchCov" title="Branch 0 was taken 7 times"> + </span><span class="branchCov" title="Branch 1 was taken 17330 times"> + </span>]:<span class="lineCov"> 17337 : if (seccomp_filtering)</span></a>
<a name="1513"><span class="lineNum"> 1513 </span> :<span class="lineCov"> 7 : init_seccomp_filter();</span></a>
<a name="1514"><span class="lineNum"> 1514 </span> :<span class="lineCov"> 17337 : execve(params->pathname, params->argv, params->env);</span></a>
<a name="1515"><span class="lineNum"> 1515 </span> :<span class="lineCov"> 17337 : perror_msg_and_die("exec");</span></a>
<a name="1516"><span class="lineNum"> 1516 </span> : : }</a>
<a name="1517"><span class="lineNum"> 1517 </span> : : </a>
<a name="1518"><span class="lineNum"> 1518 </span> : : /*</a>
<a name="1519"><span class="lineNum"> 1519 </span> : : * Open a dummy descriptor for use as a placeholder.</a>
<a name="1520"><span class="lineNum"> 1520 </span> : : * The descriptor is O_RDONLY with FD_CLOEXEC flag set.</a>
<a name="1521"><span class="lineNum"> 1521 </span> : : * A read attempt from such descriptor ends with EOF,</a>
<a name="1522"><span class="lineNum"> 1522 </span> : : * a write attempt is rejected with EBADF.</a>
<a name="1523"><span class="lineNum"> 1523 </span> : : */</a>
<a name="1524"><span class="lineNum"> 1524 </span> : : static int</a>
<a name="1525"><span class="lineNum"> 1525 </span> :<span class="lineCov"> 52001 : open_dummy_desc(void)</span></a>
<a name="1526"><span class="lineNum"> 1526 </span> : : {</a>
<a name="1527"><span class="lineNum"> 1527 </span> :<span class="lineCov"> 52001 : int fds[2];</span></a>
<a name="1528"><span class="lineNum"> 1528 </span> : : </a>
<a name="1529"><span class="lineNum"> 1529 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 52001 times"> + </span>]:<span class="lineCov"> 52001 : if (pipe(fds))</span></a>
<a name="1530"><span class="lineNum"> 1530 </span> :<span class="lineNoCov"> 0 : perror_func_msg_and_die("pipe");</span></a>
<a name="1531"><span class="lineNum"> 1531 </span> :<span class="lineCov"> 52001 : close(fds[1]);</span></a>
<a name="1532"><span class="lineNum"> 1532 </span> :<span class="lineCov"> 52001 : set_cloexec_flag(fds[0]);</span></a>
<a name="1533"><span class="lineNum"> 1533 </span> :<span class="lineCov"> 52001 : return fds[0];</span></a>
<a name="1534"><span class="lineNum"> 1534 </span> : : }</a>
<a name="1535"><span class="lineNum"> 1535 </span> : : </a>
<a name="1536"><span class="lineNum"> 1536 </span> : : /* placeholder fds status for stdin and stdout */</a>
<a name="1537"><span class="lineNum"> 1537 </span> : : static bool fd_is_placeholder[2];</a>
<a name="1538"><span class="lineNum"> 1538 </span> : : </a>
<a name="1539"><span class="lineNum"> 1539 </span> : : /*</a>
<a name="1540"><span class="lineNum"> 1540 </span> : : * Ensure that all standard file descriptors are open by opening placeholder</a>
<a name="1541"><span class="lineNum"> 1541 </span> : : * file descriptors for those standard file descriptors that are not open.</a>
<a name="1542"><span class="lineNum"> 1542 </span> : : *</a>
<a name="1543"><span class="lineNum"> 1543 </span> : : * The information which descriptors have been made open is saved</a>
<a name="1544"><span class="lineNum"> 1544 </span> : : * in fd_is_placeholder for later use.</a>
<a name="1545"><span class="lineNum"> 1545 </span> : : */</a>
<a name="1546"><span class="lineNum"> 1546 </span> : : static void</a>
<a name="1547"><span class="lineNum"> 1547 </span> :<span class="lineCov"> 17355 : ensure_standard_fds_opened(void)</span></a>
<a name="1548"><span class="lineNum"> 1548 </span> : : {</a>
<a name="1549"><span class="lineNum"> 1549 </span> :<span class="lineCov"> 17355 : int fd;</span></a>
<a name="1550"><span class="lineNum"> 1550 </span> : : </a>
<a name="1551"><span class="lineNum"> 1551 </span> [<span class="branchCov" title="Branch 0 was taken 12 times"> + </span><span class="branchCov" title="Branch 1 was taken 17351 times"> + </span>]:<span class="lineCov"> 17363 : while ((fd = open_dummy_desc()) <= 2) {</span></a>
<a name="1552"><span class="lineNum"> 1552 </span> [<span class="branchCov" title="Branch 0 was taken 8 times"> + </span><span class="branchCov" title="Branch 1 was taken 4 times"> + </span>]:<span class="lineCov"> 12 : if (fd == 2)</span></a>
<a name="1553"><span class="lineNum"> 1553 </span> : : break;</a>
<a name="1554"><span class="lineNum"> 1554 </span> :<span class="lineCov"> 8 : fd_is_placeholder[fd] = true;</span></a>
<a name="1555"><span class="lineNum"> 1555 </span> : : }</a>
<a name="1556"><span class="lineNum"> 1556 </span> : : </a>
<a name="1557"><span class="lineNum"> 1557 </span> [<span class="branchCov" title="Branch 0 was taken 17351 times"> + </span><span class="branchCov" title="Branch 1 was taken 4 times"> + </span>]:<span class="lineCov"> 17355 : if (fd > 2)</span></a>
<a name="1558"><span class="lineNum"> 1558 </span> :<span class="lineCov"> 17351 : close(fd);</span></a>
<a name="1559"><span class="lineNum"> 1559 </span> :<span class="lineCov"> 17355 : }</span></a>
<a name="1560"><span class="lineNum"> 1560 </span> : : </a>
<a name="1561"><span class="lineNum"> 1561 </span> : : /*</a>
<a name="1562"><span class="lineNum"> 1562 </span> : : * Redirect stdin and stdout unless they have been opened earlier</a>
<a name="1563"><span class="lineNum"> 1563 </span> : : * by ensure_standard_fds_opened as placeholders.</a>
<a name="1564"><span class="lineNum"> 1564 </span> : : */</a>
<a name="1565"><span class="lineNum"> 1565 </span> : : static void</a>
<a name="1566"><span class="lineNum"> 1566 </span> :<span class="lineCov"> 17323 : redirect_standard_fds(void)</span></a>
<a name="1567"><span class="lineNum"> 1567 </span> : : {</a>
<a name="1568"><span class="lineNum"> 1568 </span> : : /*</a>
<a name="1569"><span class="lineNum"> 1569 </span> : : * It might be a good idea to redirect stderr as well,</a>
<a name="1570"><span class="lineNum"> 1570 </span> : : * but we sometimes need to print error messages.</a>
<a name="1571"><span class="lineNum"> 1571 </span> : : */</a>
<a name="1572"><span class="lineNum"> 1572 </span> [<span class="branchCov" title="Branch 0 was taken 34646 times"> + </span><span class="branchCov" title="Branch 1 was taken 17323 times"> + </span>]:<span class="lineCov"> 51969 : for (int i = 0; i <= 1; ++i) {</span></a>
<a name="1573"><span class="lineNum"> 1573 </span> [<span class="branchCov" title="Branch 0 was taken 34638 times"> + </span><span class="branchCov" title="Branch 1 was taken 8 times"> + </span>]:<span class="lineCov"> 34646 : if (!fd_is_placeholder[i]) {</span></a>
<a name="1574"><span class="lineNum"> 1574 </span> :<span class="lineCov"> 34638 : close(i);</span></a>
<a name="1575"><span class="lineNum"> 1575 </span> :<span class="lineCov"> 34638 : open_dummy_desc();</span></a>
<a name="1576"><span class="lineNum"> 1576 </span> : : }</a>
<a name="1577"><span class="lineNum"> 1577 </span> : : }</a>
<a name="1578"><span class="lineNum"> 1578 </span> :<span class="lineCov"> 17323 : }</span></a>
<a name="1579"><span class="lineNum"> 1579 </span> : : </a>
<a name="1580"><span class="lineNum"> 1580 </span> : : static void</a>
<a name="1581"><span class="lineNum"> 1581 </span> :<span class="lineCov"> 17333 : startup_child(char **argv, char **env)</span></a>
<a name="1582"><span class="lineNum"> 1582 </span> : : {</a>
<a name="1583"><span class="lineNum"> 1583 </span> :<span class="lineCov"> 17333 : strace_stat_t statbuf;</span></a>
<a name="1584"><span class="lineNum"> 1584 </span> :<span class="lineCov"> 17333 : const char *filename;</span></a>
<a name="1585"><span class="lineNum"> 1585 </span> :<span class="lineCov"> 17333 : size_t filename_len;</span></a>
<a name="1586"><span class="lineNum"> 1586 </span> :<span class="lineCov"> 17333 : char pathname[PATH_MAX];</span></a>
<a name="1587"><span class="lineNum"> 1587 </span> :<span class="lineCov"> 17333 : int pid;</span></a>
<a name="1588"><span class="lineNum"> 1588 </span> :<span class="lineCov"> 17333 : struct tcb *tcp;</span></a>
<a name="1589"><span class="lineNum"> 1589 </span> : : </a>
<a name="1590"><span class="lineNum"> 1590 </span> :<span class="lineCov"> 17333 : filename = argv[0];</span></a>
<a name="1591"><span class="lineNum"> 1591 </span> :<span class="lineCov"> 17333 : filename_len = strlen(filename);</span></a>
<a name="1592"><span class="lineNum"> 1592 </span> : : </a>
<a name="1593"><span class="lineNum"> 1593 </span> [<span class="branchCov" title="Branch 0 was taken 1 time"> + </span><span class="branchCov" title="Branch 1 was taken 17332 times"> + </span>]:<span class="lineCov"> 17333 : if (filename_len > sizeof(pathname) - 1) {</span></a>
<a name="1594"><span class="lineNum"> 1594 </span> :<span class="lineCov"> 1 : errno = ENAMETOOLONG;</span></a>
<a name="1595"><span class="lineNum"> 1595 </span> :<span class="lineCov"> 1 : perror_msg_and_die("exec");</span></a>
<a name="1596"><span class="lineNum"> 1596 </span> : : }</a>
<a name="1597"><span class="lineNum"> 1597 </span> [<span class="branchCov" title="Branch 0 was taken 17329 times"> + </span><span class="branchCov" title="Branch 1 was taken 3 times"> + </span>]:<span class="lineCov"> 17332 : if (strchr(filename, '/')) {</span></a>
<a name="1598"><span class="lineNum"> 1598 </span> :<span class="lineCov"> 17329 : strcpy(pathname, filename);</span></a>
<a name="1599"><span class="lineNum"> 1599 </span> : : }</a>
<a name="1600"><span class="lineNum"> 1600 </span> : : #ifdef USE_DEBUGGING_EXEC</a>
<a name="1601"><span class="lineNum"> 1601 </span> : : /*</a>
<a name="1602"><span class="lineNum"> 1602 </span> : : * Debuggers customarily check the current directory</a>
<a name="1603"><span class="lineNum"> 1603 </span> : : * first regardless of the path but doing that gives</a>
<a name="1604"><span class="lineNum"> 1604 </span> : : * security geeks a panic attack.</a>
<a name="1605"><span class="lineNum"> 1605 </span> : : */</a>
<a name="1606"><span class="lineNum"> 1606 </span> : : else if (stat_file(filename, &statbuf) == 0)</a>
<a name="1607"><span class="lineNum"> 1607 </span> : : strcpy(pathname, filename);</a>
<a name="1608"><span class="lineNum"> 1608 </span> : : #endif /* USE_DEBUGGING_EXEC */</a>
<a name="1609"><span class="lineNum"> 1609 </span> : : else {</a>
<a name="1610"><span class="lineNum"> 1610 </span> :<span class="lineCov"> 3 : const char *path;</span></a>
<a name="1611"><span class="lineNum"> 1611 </span> :<span class="lineCov"> 3 : size_t m, n, len;</span></a>
<a name="1612"><span class="lineNum"> 1612 </span> : : </a>
<a name="1613"><span class="lineNum"> 1613 </span> [<span class="branchCov" title="Branch 0 was taken 18 times"> + </span><span class="branchNoCov" title="Branch 1 was not taken"> - </span><span class="branchCov" title="Branch 2 was taken 18 times"> + </span><span class="branchNoCov" title="Branch 3 was not taken"> - </span>]:<span class="lineCov"> 18 : for (path = getenv("PATH"); path && *path; path += m) {</span></a>
<a name="1614"><span class="lineNum"> 1614 </span> :<span class="lineCov"> 18 : const char *colon = strchr(path, ':');</span></a>
<a name="1615"><span class="lineNum"> 1615 </span> [<span class="branchCov" title="Branch 0 was taken 18 times"> + </span><span class="branchNoCov" title="Branch 1 was not taken"> - </span>]:<span class="lineCov"> 18 : if (colon) {</span></a>
<a name="1616"><span class="lineNum"> 1616 </span> :<span class="lineCov"> 18 : n = colon - path;</span></a>
<a name="1617"><span class="lineNum"> 1617 </span> :<span class="lineCov"> 18 : m = n + 1;</span></a>
<a name="1618"><span class="lineNum"> 1618 </span> : : } else</a>
<a name="1619"><span class="lineNum"> 1619 </span> :<span class="lineNoCov"> 0 : m = n = strlen(path);</span></a>
<a name="1620"><span class="lineNum"> 1620 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 18 times"> + </span>]:<span class="lineCov"> 18 : if (n == 0) {</span></a>
<a name="1621"><span class="lineNum"> 1621 </span> [<span class="branchNoExec" title="Branch 0 was not executed"> # </span><span class="branchNoExec" title="Branch 1 was not executed"> # </span>]:<span class="lineNoCov"> 0 : if (!getcwd(pathname, PATH_MAX))</span></a>
<a name="1622"><span class="lineNum"> 1622 </span> :<span class="lineNoCov"> 0 : continue;</span></a>
<a name="1623"><span class="lineNum"> 1623 </span> :<span class="lineNoCov"> 0 : len = strlen(pathname);</span></a>
<a name="1624"><span class="lineNum"> 1624 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 18 times"> + </span>]:<span class="lineCov"> 18 : } else if (n > sizeof(pathname) - 1)</span></a>
<a name="1625"><span class="lineNum"> 1625 </span> :<span class="lineNoCov"> 0 : continue;</span></a>
<a name="1626"><span class="lineNum"> 1626 </span> : : else {</a>
<a name="1627"><span class="lineNum"> 1627 </span> :<span class="lineCov"> 18 : strncpy(pathname, path, n);</span></a>
<a name="1628"><span class="lineNum"> 1628 </span> :<span class="lineCov"> 18 : len = n;</span></a>
<a name="1629"><span class="lineNum"> 1629 </span> : : }</a>
<a name="1630"><span class="lineNum"> 1630 </span> [<span class="branchCov" title="Branch 0 was taken 18 times"> + </span><span class="branchNoCov" title="Branch 1 was not taken"> - </span><span class="branchCov" title="Branch 2 was taken 18 times"> + </span><span class="branchNoCov" title="Branch 3 was not taken"> - </span>]:<span class="lineCov"> 18 : if (len && pathname[len - 1] != '/')</span></a>
<a name="1631"><span class="lineNum"> 1631 </span> :<span class="lineCov"> 18 : pathname[len++] = '/';</span></a>
<a name="1632"><span class="lineNum"> 1632 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 18 times"> + </span>]:<span class="lineCov"> 18 : if (filename_len + len > sizeof(pathname) - 1)</span></a>
<a name="1633"><span class="lineNum"> 1633 </span> :<span class="lineNoCov"> 0 : continue;</span></a>
<a name="1634"><span class="lineNum"> 1634 </span> :<span class="lineCov"> 18 : strcpy(pathname + len, filename);</span></a>
<a name="1635"><span class="lineNum"> 1635 </span> [<span class="branchCov" title="Branch 0 was taken 3 times"> + </span><span class="branchCov" title="Branch 1 was taken 15 times"> + </span>]:<span class="lineCov"> 18 : if (stat_file(pathname, &statbuf) == 0 &&</span></a>
<a name="1636"><span class="lineNum"> 1636 </span> : : /* Accept only regular files</a>
<a name="1637"><span class="lineNum"> 1637 </span> : : with some execute bits set.</a>
<a name="1638"><span class="lineNum"> 1638 </span> : : XXX not perfect, might still fail */</a>
<a name="1639"><span class="lineNum"> 1639 </span> [<span class="branchCov" title="Branch 0 was taken 3 times"> + </span><span class="branchNoCov" title="Branch 1 was not taken"> - </span>]:<span class="lineCov"> 3 : S_ISREG(statbuf.st_mode) &&</span></a>
<a name="1640"><span class="lineNum"> 1640 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 3 times"> + </span>]:<span class="lineCov"> 3 : (statbuf.st_mode & 0111))</span></a>
<a name="1641"><span class="lineNum"> 1641 </span> : : break;</a>
<a name="1642"><span class="lineNum"> 1642 </span> : : }</a>
<a name="1643"><span class="lineNum"> 1643 </span> [<span class="branchCov" title="Branch 0 was taken 3 times"> + </span><span class="branchNoCov" title="Branch 1 was not taken"> - </span><span class="branchNoCov" title="Branch 2 was not taken"> - </span><span class="branchCov" title="Branch 3 was taken 3 times"> + </span>]:<span class="lineCov"> 3 : if (!path || !*path)</span></a>
<a name="1644"><span class="lineNum"> 1644 </span> :<span class="lineNoCov"> 0 : pathname[0] = '\0';</span></a>
<a name="1645"><span class="lineNum"> 1645 </span> : : }</a>
<a name="1646"><span class="lineNum"> 1646 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 17332 times"> + </span>]:<span class="lineCov"> 17332 : if (stat_file(pathname, &statbuf) < 0) {</span></a>
<a name="1647"><span class="lineNum"> 1647 </span> :<span class="lineNoCov"> 0 : perror_msg_and_die("Can't stat '%s'", filename);</span></a>
<a name="1648"><span class="lineNum"> 1648 </span> : : }</a>
<a name="1649"><span class="lineNum"> 1649 </span> : : </a>
<a name="1650"><span class="lineNum"> 1650 </span> [<span class="branchCov" title="Branch 0 was taken 14909 times"> + </span><span class="branchCov" title="Branch 1 was taken 2423 times"> + </span>]:<span class="lineCov"> 17332 : params_for_tracee.fd_to_close = (shared_log != stderr) ? fileno(shared_log) : -1;</span></a>
<a name="1651"><span class="lineNum"> 1651 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 17332 times"> + </span>]:<span class="lineCov"> 17332 : params_for_tracee.run_euid = (statbuf.st_mode & S_ISUID) ? statbuf.st_uid : run_uid;</span></a>
<a name="1652"><span class="lineNum"> 1652 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 17332 times"> + </span>]:<span class="lineCov"> 17332 : params_for_tracee.run_egid = (statbuf.st_mode & S_ISGID) ? statbuf.st_gid : run_gid;</span></a>
<a name="1653"><span class="lineNum"> 1653 </span> :<span class="lineCov"> 17332 : params_for_tracee.argv = argv;</span></a>
<a name="1654"><span class="lineNum"> 1654 </span> :<span class="lineCov"> 17332 : params_for_tracee.env = env;</span></a>
<a name="1655"><span class="lineNum"> 1655 </span> : : /*</a>
<a name="1656"><span class="lineNum"> 1656 </span> : : * On NOMMU, can be safely freed only after execve in tracee.</a>
<a name="1657"><span class="lineNum"> 1657 </span> : : * It's hard to know when that happens, so we just leak it.</a>
<a name="1658"><span class="lineNum"> 1658 </span> : : */</a>
<a name="1659"><span class="lineNum"> 1659 </span> :<span class="lineCov"> 17332 : params_for_tracee.pathname = NOMMU_SYSTEM ? xstrdup(pathname) : pathname;</span></a>
<a name="1660"><span class="lineNum"> 1660 </span> : : </a>
<a name="1661"><span class="lineNum"> 1661 </span> [<span class="branchCov" title="Branch 0 was taken 9 times"> + </span><span class="branchCov" title="Branch 1 was taken 17323 times"> + </span>]:<span class="lineCov"> 17332 : if (daemonized_tracer)</span></a>
<a name="1662"><span class="lineNum"> 1662 </span> :<span class="lineCov"> 9 : prctl(PR_SET_PTRACER, PR_SET_PTRACER_ANY);</span></a>
<a name="1663"><span class="lineNum"> 1663 </span> : : </a>
<a name="1664"><span class="lineNum"> 1664 </span> :<span class="lineCov"> 17332 : pid = fork();</span></a>
<a name="1665"><span class="lineNum"> 1665 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 34660 times"> + </span>]:<span class="lineCov"> 34660 : if (pid < 0)</span></a>
<a name="1666"><span class="lineNum"> 1666 </span> :<span class="lineNoCov"> 0 : perror_func_msg_and_die("fork");</span></a>
<a name="1667"><span class="lineNum"> 1667 </span> : : </a>
<a name="1668"><span class="lineNum"> 1668 </span> [<span class="branchCov" title="Branch 0 was taken 17332 times"> + </span><span class="branchCov" title="Branch 1 was taken 17328 times"> + </span><span class="branchCov" title="Branch 2 was taken 17323 times"> + </span><span class="branchCov" title="Branch 3 was taken 9 times"> + </span>]:<span class="lineCov"> 34660 : if ((pid != 0 && daemonized_tracer)</span></a>
<a name="1669"><span class="lineNum"> 1669 </span> [<span class="branchCov" title="Branch 0 was taken 17328 times"> + </span><span class="branchCov" title="Branch 1 was taken 17323 times"> + </span><span class="branchCov" title="Branch 2 was taken 17328 times"> + </span><span class="branchNoCov" title="Branch 3 was not taken"> - </span>]:<span class="lineCov"> 34651 : || (pid == 0 && !daemonized_tracer)</span></a>
<a name="1670"><span class="lineNum"> 1670 </span> : : ) {</a>
<a name="1671"><span class="lineNum"> 1671 </span> : : /* We are to become the tracee. Two cases:</a>
<a name="1672"><span class="lineNum"> 1672 </span> : : * -D: we are parent</a>
<a name="1673"><span class="lineNum"> 1673 </span> : : * not -D: we are child</a>
<a name="1674"><span class="lineNum"> 1674 </span> : : */</a>
<a name="1675"><span class="lineNum"> 1675 </span> :<span class="lineCov"> 17337 : exec_or_die();</span></a>
<a name="1676"><span class="lineNum"> 1676 </span> : : }</a>
<a name="1677"><span class="lineNum"> 1677 </span> : : </a>
<a name="1678"><span class="lineNum"> 1678 </span> : : /* We are the tracer */</a>
<a name="1679"><span class="lineNum"> 1679 </span> : : </a>
<a name="1680"><span class="lineNum"> 1680 </span> [<span class="branchCov" title="Branch 0 was taken 17323 times"> + </span><span class="branchNoCov" title="Branch 1 was not taken"> - </span>]:<span class="lineCov"> 17323 : if (!daemonized_tracer) {</span></a>
<a name="1681"><span class="lineNum"> 1681 </span> :<span class="lineCov"> 17323 : strace_child = pid;</span></a>
<a name="1682"><span class="lineNum"> 1682 </span> [<span class="branchCov" title="Branch 0 was taken 17323 times"> + </span><span class="branchNoCov" title="Branch 1 was not taken"> - </span>]:<span class="lineCov"> 17323 : if (!use_seize) {</span></a>
<a name="1683"><span class="lineNum"> 1683 </span> : : /* child did PTRACE_TRACEME, nothing to do in parent */</a>
<a name="1684"><span class="lineNum"> 1684 </span> : : } else {</a>
<a name="1685"><span class="lineNum"> 1685 </span> : : if (!NOMMU_SYSTEM) {</a>
<a name="1686"><span class="lineNum"> 1686 </span> : : /* Wait until child stopped itself */</a>
<a name="1687"><span class="lineNum"> 1687 </span> : : int status;</a>
<a name="1688"><span class="lineNum"> 1688 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 17323 times"> + </span>]:<span class="lineCov"> 17323 : while (waitpid(pid, &status, WSTOPPED) < 0) {</span></a>
<a name="1689"><span class="lineNum"> 1689 </span> [<span class="branchNoExec" title="Branch 0 was not executed"> # </span><span class="branchNoExec" title="Branch 1 was not executed"> # </span>]:<span class="lineNoCov"> 0 : if (errno == EINTR)</span></a>
<a name="1690"><span class="lineNum"> 1690 </span> :<span class="lineNoCov"> 0 : continue;</span></a>
<a name="1691"><span class="lineNum"> 1691 </span> :<span class="lineNoCov"> 0 : perror_msg_and_die("waitpid");</span></a>
<a name="1692"><span class="lineNum"> 1692 </span> : : }</a>
<a name="1693"><span class="lineNum"> 1693 </span> [<span class="branchCov" title="Branch 0 was taken 17323 times"> + </span><span class="branchNoCov" title="Branch 1 was not taken"> - </span><span class="branchNoCov" title="Branch 2 was not taken"> - </span><span class="branchCov" title="Branch 3 was taken 17323 times"> + </span>]:<span class="lineCov"> 17323 : if (!WIFSTOPPED(status) || WSTOPSIG(status) != SIGSTOP) {</span></a>
<a name="1694"><span class="lineNum"> 1694 </span> :<span class="lineNoCov"> 0 : kill_save_errno(pid, SIGKILL);</span></a>
<a name="1695"><span class="lineNum"> 1695 </span> :<span class="lineNoCov"> 0 : perror_msg_and_die("Unexpected wait status %#x",</span></a>
<a name="1696"><span class="lineNum"> 1696 </span> : : status);</a>
<a name="1697"><span class="lineNum"> 1697 </span> : : }</a>
<a name="1698"><span class="lineNum"> 1698 </span> : : }</a>
<a name="1699"><span class="lineNum"> 1699 </span> : : /* Else: NOMMU case, we have no way to sync.</a>
<a name="1700"><span class="lineNum"> 1700 </span> : : * Just attach to it as soon as possible.</a>
<a name="1701"><span class="lineNum"> 1701 </span> : : * This means that we may miss a few first syscalls...</a>
<a name="1702"><span class="lineNum"> 1702 </span> : : */</a>
<a name="1703"><span class="lineNum"> 1703 </span> : : </a>
<a name="1704"><span class="lineNum"> 1704 </span> :<span class="lineCov"> 17323 : const char *ptrace_attach_cmd;</span></a>
<a name="1705"><span class="lineNum"> 1705 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 17323 times"> + </span>]:<span class="lineCov"> 17323 : if (ptrace_attach_or_seize(pid, &ptrace_attach_cmd)) {</span></a>
<a name="1706"><span class="lineNum"> 1706 </span> :<span class="lineNoCov"> 0 : kill_save_errno(pid, SIGKILL);</span></a>
<a name="1707"><span class="lineNum"> 1707 </span> :<span class="lineNoCov"> 0 : perror_msg_and_die("attach: ptrace(%s, %d)",</span></a>
<a name="1708"><span class="lineNum"> 1708 </span> : : ptrace_attach_cmd, pid);</a>
<a name="1709"><span class="lineNum"> 1709 </span> : : }</a>
<a name="1710"><span class="lineNum"> 1710 </span> :<span class="lineCov"> 17323 : if (!NOMMU_SYSTEM)</span></a>
<a name="1711"><span class="lineNum"> 1711 </span> :<span class="lineCov"> 17323 : kill(pid, SIGCONT);</span></a>
<a name="1712"><span class="lineNum"> 1712 </span> : : }</a>
<a name="1713"><span class="lineNum"> 1713 </span> :<span class="lineCov"> 17323 : tcp = alloctcb(pid);</span></a>
<a name="1714"><span class="lineNum"> 1714 </span> :<span class="lineCov"> 17323 : after_successful_attach(tcp, TCB_SKIP_DETACH_ON_FIRST_EXEC</span></a>
<a name="1715"><span class="lineNum"> 1715 </span> :<span class="lineCov"> 17323 : | (NOMMU_SYSTEM ? 0</span></a>
<a name="1716"><span class="lineNum"> 1716 </span> : : : (TCB_HIDE_LOG</a>
<a name="1717"><span class="lineNum"> 1717 </span> : : | post_attach_sigstop)));</a>
<a name="1718"><span class="lineNum"> 1718 </span> : : } else {</a>
<a name="1719"><span class="lineNum"> 1719 </span> : : /* With -D, we are *child* here, the tracee is our parent. */</a>
<a name="1720"><span class="lineNum"> 1720 </span> :<span class="lineNoCov"> 0 : strace_child = strace_tracer_pid;</span></a>
<a name="1721"><span class="lineNum"> 1721 </span> :<span class="lineNoCov"> 0 : strace_tracer_pid = getpid();</span></a>
<a name="1722"><span class="lineNum"> 1722 </span> :<span class="lineNoCov"> 0 : tcp = alloctcb(strace_child);</span></a>
<a name="1723"><span class="lineNum"> 1723 </span> :<span class="lineNoCov"> 0 : tcp->flags |= TCB_SKIP_DETACH_ON_FIRST_EXEC | TCB_HIDE_LOG;</span></a>
<a name="1724"><span class="lineNum"> 1724 </span> : : /*</a>
<a name="1725"><span class="lineNum"> 1725 </span> : : * Attaching will be done later, by startup_attach.</a>
<a name="1726"><span class="lineNum"> 1726 </span> : : * Note: we don't do after_successful_attach() here either!</a>
<a name="1727"><span class="lineNum"> 1727 </span> : : */</a>
<a name="1728"><span class="lineNum"> 1728 </span> : : </a>
<a name="1729"><span class="lineNum"> 1729 </span> : : /* NOMMU BUG! -D mode is active, we (child) return,</a>
<a name="1730"><span class="lineNum"> 1730 </span> : : * and we will scribble over parent's stack!</a>
<a name="1731"><span class="lineNum"> 1731 </span> : : * When parent later unpauses, it segfaults.</a>
<a name="1732"><span class="lineNum"> 1732 </span> : : *</a>
<a name="1733"><span class="lineNum"> 1733 </span> : : * We work around it</a>
<a name="1734"><span class="lineNum"> 1734 </span> : : * (1) by declaring exec_or_die() NORETURN,</a>
<a name="1735"><span class="lineNum"> 1735 </span> : : * hopefully compiler will just jump to it</a>
<a name="1736"><span class="lineNum"> 1736 </span> : : * instead of call (won't push anything to stack),</a>
<a name="1737"><span class="lineNum"> 1737 </span> : : * (2) by trying very hard in exec_or_die()</a>
<a name="1738"><span class="lineNum"> 1738 </span> : : * to not use any stack,</a>
<a name="1739"><span class="lineNum"> 1739 </span> : : * (3) having a really big (PATH_MAX) stack object</a>
<a name="1740"><span class="lineNum"> 1740 </span> : : * in this function, which creates a "buffer" between</a>
<a name="1741"><span class="lineNum"> 1741 </span> : : * child's and parent's stack pointers.</a>
<a name="1742"><span class="lineNum"> 1742 </span> : : * This may save us if (1) and (2) failed</a>
<a name="1743"><span class="lineNum"> 1743 </span> : : * and compiler decided to use stack in exec_or_die() anyway</a>
<a name="1744"><span class="lineNum"> 1744 </span> : : * (happens on i386 because of stack parameter passing).</a>
<a name="1745"><span class="lineNum"> 1745 </span> : : *</a>
<a name="1746"><span class="lineNum"> 1746 </span> : : * A cleaner solution is to use makecontext + setcontext</a>
<a name="1747"><span class="lineNum"> 1747 </span> : : * to create a genuine separate stack and execute on it.</a>
<a name="1748"><span class="lineNum"> 1748 </span> : : */</a>
<a name="1749"><span class="lineNum"> 1749 </span> : : }</a>
<a name="1750"><span class="lineNum"> 1750 </span> : : </a>
<a name="1751"><span class="lineNum"> 1751 </span> [<span class="branchCov" title="Branch 0 was taken 7 times"> + </span><span class="branchCov" title="Branch 1 was taken 17316 times"> + </span>]:<span class="lineCov"> 17323 : if (seccomp_filtering)</span></a>
<a name="1752"><span class="lineNum"> 1752 </span> :<span class="lineCov"> 7 : tcp->flags |= TCB_SECCOMP_FILTER;</span></a>
<a name="1753"><span class="lineNum"> 1753 </span> : : </a>
<a name="1754"><span class="lineNum"> 1754 </span> : : /*</a>
<a name="1755"><span class="lineNum"> 1755 </span> : : * A case where straced process is part of a pipe:</a>
<a name="1756"><span class="lineNum"> 1756 </span> : : * { sleep 1; yes | head -n99999; } | strace -o/dev/null sh -c 'exec <&-; sleep 9'</a>
<a name="1757"><span class="lineNum"> 1757 </span> : : * If strace won't close its fd#0, closing it in tracee is not enough:</a>
<a name="1758"><span class="lineNum"> 1758 </span> : : * the pipe is still open, it has a reader. Thus, "head" will not get its</a>
<a name="1759"><span class="lineNum"> 1759 </span> : : * SIGPIPE at once, on the first write.</a>
<a name="1760"><span class="lineNum"> 1760 </span> : : *</a>
<a name="1761"><span class="lineNum"> 1761 </span> : : * Preventing it by redirecting strace's stdin/out.</a>
<a name="1762"><span class="lineNum"> 1762 </span> : : * (Don't leave fds 0 and 1 closed, this is bad practice: future opens</a>
<a name="1763"><span class="lineNum"> 1763 </span> : : * will reuse them, unexpectedly making a newly opened object "stdin").</a>
<a name="1764"><span class="lineNum"> 1764 </span> : : */</a>
<a name="1765"><span class="lineNum"> 1765 </span> :<span class="lineCov"> 17323 : redirect_standard_fds();</span></a>
<a name="1766"><span class="lineNum"> 1766 </span> :<span class="lineCov"> 17323 : }</span></a>
<a name="1767"><span class="lineNum"> 1767 </span> : : </a>
<a name="1768"><span class="lineNum"> 1768 </span> : : static void</a>
<a name="1769"><span class="lineNum"> 1769 </span> :<span class="lineCov"> 17355 : test_ptrace_seize(void)</span></a>
<a name="1770"><span class="lineNum"> 1770 </span> : : {</a>
<a name="1771"><span class="lineNum"> 1771 </span> :<span class="lineCov"> 17355 : int pid;</span></a>
<a name="1772"><span class="lineNum"> 1772 </span> : : </a>
<a name="1773"><span class="lineNum"> 1773 </span> : : /* Need fork for test. NOMMU has no forks */</a>
<a name="1774"><span class="lineNum"> 1774 </span> :<span class="lineCov"> 17355 : if (NOMMU_SYSTEM) {</span></a>
<a name="1775"><span class="lineNum"> 1775 </span> : : post_attach_sigstop = 0; /* this sets use_seize to 1 */</a>
<a name="1776"><span class="lineNum"> 1776 </span> : : return;</a>
<a name="1777"><span class="lineNum"> 1777 </span> : : }</a>
<a name="1778"><span class="lineNum"> 1778 </span> : : </a>
<a name="1779"><span class="lineNum"> 1779 </span> :<span class="lineCov"> 17355 : pid = fork();</span></a>
<a name="1780"><span class="lineNum"> 1780 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 17355 times"> + </span>]:<span class="lineCov"> 17355 : if (pid < 0)</span></a>
<a name="1781"><span class="lineNum"> 1781 </span> :<span class="lineNoCov"> 0 : perror_func_msg_and_die("fork");</span></a>
<a name="1782"><span class="lineNum"> 1782 </span> : : </a>
<a name="1783"><span class="lineNum"> 1783 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 17355 times"> + </span>]:<span class="lineCov"> 17355 : if (pid == 0) {</span></a>
<a name="1784"><span class="lineNum"> 1784 </span> :<span class="lineNoCov"> 0 : pause();</span></a>
<a name="1785"><span class="lineNum"> 1785 </span> :<span class="lineNoCov"> 0 : _exit(0);</span></a>
<a name="1786"><span class="lineNum"> 1786 </span> : : }</a>
<a name="1787"><span class="lineNum"> 1787 </span> : : </a>
<a name="1788"><span class="lineNum"> 1788 </span> : : /* PTRACE_SEIZE, unlike ATTACH, doesn't force tracee to trap. After</a>
<a name="1789"><span class="lineNum"> 1789 </span> : : * attaching tracee continues to run unless a trap condition occurs.</a>
<a name="1790"><span class="lineNum"> 1790 </span> : : * PTRACE_SEIZE doesn't affect signal or group stop state.</a>
<a name="1791"><span class="lineNum"> 1791 </span> : : */</a>
<a name="1792"><span class="lineNum"> 1792 </span> [<span class="branchCov" title="Branch 0 was taken 17355 times"> + </span><span class="branchNoCov" title="Branch 1 was not taken"> - </span>]:<span class="lineCov"> 17355 : if (ptrace(PTRACE_SEIZE, pid, 0, 0) == 0) {</span></a>
<a name="1793"><span class="lineNum"> 1793 </span> :<span class="lineCov"> 17355 : post_attach_sigstop = 0; /* this sets use_seize to 1 */</span></a>
<a name="1794"><span class="lineNum"> 1794 </span> : : } else {</a>
<a name="1795"><span class="lineNum"> 1795 </span> [<span class="branchNoExec" title="Branch 0 was not executed"> # </span><span class="branchNoExec" title="Branch 1 was not executed"> # </span>]:<span class="lineNoCov"> 0 : debug_msg("PTRACE_SEIZE doesn't work");</span></a>
<a name="1796"><span class="lineNum"> 1796 </span> : : }</a>
<a name="1797"><span class="lineNum"> 1797 </span> : : </a>
<a name="1798"><span class="lineNum"> 1798 </span> :<span class="lineCov"> 17355 : kill(pid, SIGKILL);</span></a>
<a name="1799"><span class="lineNum"> 1799 </span> : : </a>
<a name="1800"><span class="lineNum"> 1800 </span> :<span class="lineCov"> 17355 : while (1) {</span></a>
<a name="1801"><span class="lineNum"> 1801 </span> :<span class="lineCov"> 17355 : int status, tracee_pid;</span></a>
<a name="1802"><span class="lineNum"> 1802 </span> : : </a>
<a name="1803"><span class="lineNum"> 1803 </span> :<span class="lineCov"> 17355 : errno = 0;</span></a>
<a name="1804"><span class="lineNum"> 1804 </span> :<span class="lineCov"> 17355 : tracee_pid = waitpid(pid, &status, 0);</span></a>
<a name="1805"><span class="lineNum"> 1805 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 17355 times"> + </span>]:<span class="lineCov"> 17355 : if (tracee_pid <= 0) {</span></a>
<a name="1806"><span class="lineNum"> 1806 </span> [<span class="branchNoExec" title="Branch 0 was not executed"> # </span><span class="branchNoExec" title="Branch 1 was not executed"> # </span>]:<span class="lineNoCov"> 0 : if (errno == EINTR)</span></a>
<a name="1807"><span class="lineNum"> 1807 </span> :<span class="lineNoCov"> 0 : continue;</span></a>
<a name="1808"><span class="lineNum"> 1808 </span> :<span class="lineNoCov"> 0 : perror_func_msg_and_die("unexpected wait result %d",</span></a>
<a name="1809"><span class="lineNum"> 1809 </span> : : tracee_pid);</a>
<a name="1810"><span class="lineNum"> 1810 </span> : : }</a>
<a name="1811"><span class="lineNum"> 1811 </span> [<span class="branchCov" title="Branch 0 was taken 17355 times"> + </span><span class="branchNoCov" title="Branch 1 was not taken"> - </span>]:<span class="lineCov"> 17355 : if (WIFSIGNALED(status))</span></a>
<a name="1812"><span class="lineNum"> 1812 </span> :<span class="lineCov"> 17355 : return;</span></a>
<a name="1813"><span class="lineNum"> 1813 </span> : : </a>
<a name="1814"><span class="lineNum"> 1814 </span> :<span class="lineNoCov"> 0 : error_func_msg_and_die("unexpected wait status %#x", status);</span></a>
<a name="1815"><span class="lineNum"> 1815 </span> : : }</a>
<a name="1816"><span class="lineNum"> 1816 </span> : : }</a>
<a name="1817"><span class="lineNum"> 1817 </span> : : </a>
<a name="1818"><span class="lineNum"> 1818 </span> : : static unsigned int</a>
<a name="1819"><span class="lineNum"> 1819 </span> :<span class="lineCov"> 23834 : get_os_release(void)</span></a>
<a name="1820"><span class="lineNum"> 1820 </span> : : {</a>
<a name="1821"><span class="lineNum"> 1821 </span> :<span class="lineCov"> 23834 : struct utsname u;</span></a>
<a name="1822"><span class="lineNum"> 1822 </span> [<span class="branchCov" title="Branch 0 was taken 23834 times"> + </span><span class="branchNoCov" title="Branch 1 was not taken"> - </span>]:<span class="lineCov"> 23834 : if (uname(&u) < 0)</span></a>
<a name="1823"><span class="lineNum"> 1823 </span> :<span class="lineNoCov"> 0 : perror_msg_and_die("uname");</span></a>
<a name="1824"><span class="lineNum"> 1824 </span> : : /*</a>
<a name="1825"><span class="lineNum"> 1825 </span> : : * u.release string consists of at most three parts</a>
<a name="1826"><span class="lineNum"> 1826 </span> : : * and normally has this form: "3.2.9[-some-garbage]",</a>
<a name="1827"><span class="lineNum"> 1827 </span> : : * "X.Y-something" means "X.Y.0".</a>
<a name="1828"><span class="lineNum"> 1828 </span> : : */</a>
<a name="1829"><span class="lineNum"> 1829 </span> : : const char *p = u.release;</a>
<a name="1830"><span class="lineNum"> 1830 </span> : : unsigned int rel = 0;</a>
<a name="1831"><span class="lineNum"> 1831 </span> [<span class="branchCov" title="Branch 0 was taken 71502 times"> + </span><span class="branchCov" title="Branch 1 was taken 23834 times"> + </span>]:<span class="lineCov"> 95336 : for (unsigned int parts = 0; parts < 3; ++parts) {</span></a>
<a name="1832"><span class="lineNum"> 1832 </span> : : unsigned int n = 0;</a>
<a name="1833"><span class="lineNum"> 1833 </span> [<span class="branchCov" title="Branch 0 was taken 119170 times"> + </span><span class="branchCov" title="Branch 1 was taken 71502 times"> + </span>]:<span class="lineCov"> 190672 : for (; (*p >= '0') && (*p <= '9'); ++p) {</span></a>
<a name="1834"><span class="lineNum"> 1834 </span> :<span class="lineCov"> 119170 : n *= 10;</span></a>
<a name="1835"><span class="lineNum"> 1835 </span> :<span class="lineCov"> 119170 : n += *p - '0';</span></a>
<a name="1836"><span class="lineNum"> 1836 </span> : : }</a>
<a name="1837"><span class="lineNum"> 1837 </span> :<span class="lineCov"> 71502 : rel <<= 8;</span></a>
<a name="1838"><span class="lineNum"> 1838 </span> :<span class="lineCov"> 71502 : rel |= n;</span></a>
<a name="1839"><span class="lineNum"> 1839 </span> [<span class="branchCov" title="Branch 0 was taken 47668 times"> + </span><span class="branchCov" title="Branch 1 was taken 23834 times"> + </span>]:<span class="lineCov"> 71502 : if (*p == '.')</span></a>
<a name="1840"><span class="lineNum"> 1840 </span> :<span class="lineCov"> 47668 : ++p;</span></a>
<a name="1841"><span class="lineNum"> 1841 </span> : : }</a>
<a name="1842"><span class="lineNum"> 1842 </span> :<span class="lineCov"> 23834 : return rel;</span></a>
<a name="1843"><span class="lineNum"> 1843 </span> : : }</a>
<a name="1844"><span class="lineNum"> 1844 </span> : : </a>
<a name="1845"><span class="lineNum"> 1845 </span> : : static void</a>
<a name="1846"><span class="lineNum"> 1846 </span> :<span class="lineCov"> 155543 : set_sighandler(int signo, void (*sighandler)(int), struct sigaction *oldact)</span></a>
<a name="1847"><span class="lineNum"> 1847 </span> : : {</a>
<a name="1848"><span class="lineNum"> 1848 </span> :<span class="lineCov"> 155543 : const struct sigaction sa = { .sa_handler = sighandler };</span></a>
<a name="1849"><span class="lineNum"> 1849 </span> :<span class="lineCov"> 155543 : sigaction(signo, &sa, oldact);</span></a>
<a name="1850"><span class="lineNum"> 1850 </span> :<span class="lineCov"> 155543 : }</span></a>
<a name="1851"><span class="lineNum"> 1851 </span> : : </a>
<a name="1852"><span class="lineNum"> 1852 </span> : : static int</a>
<a name="1853"><span class="lineNum"> 1853 </span> :<span class="lineCov"> 508 : parse_interruptible_arg(const char *arg)</span></a>
<a name="1854"><span class="lineNum"> 1854 </span> : : {</a>
<a name="1855"><span class="lineNum"> 1855 </span> :<span class="lineCov"> 508 : static const struct xlat_data intr_str[] = {</span></a>
<a name="1856"><span class="lineNum"> 1856 </span> : : { INTR_ANYWHERE, "anywhere" },</a>
<a name="1857"><span class="lineNum"> 1857 </span> : : { INTR_ANYWHERE, "always" },</a>
<a name="1858"><span class="lineNum"> 1858 </span> : : { INTR_WHILE_WAIT, "waiting" },</a>
<a name="1859"><span class="lineNum"> 1859 </span> : : { INTR_NEVER, "never" },</a>
<a name="1860"><span class="lineNum"> 1860 </span> : : { INTR_BLOCK_TSTP_TOO, "never_tstp" },</a>
<a name="1861"><span class="lineNum"> 1861 </span> : : };</a>
<a name="1862"><span class="lineNum"> 1862 </span> : : </a>
<a name="1863"><span class="lineNum"> 1863 </span> :<span class="lineCov"> 508 : const struct xlat_data *intr_arg = find_xlat_val(intr_str, arg);</span></a>
<a name="1864"><span class="lineNum"> 1864 </span> : : </a>
<a name="1865"><span class="lineNum"> 1865 </span> :<span class="lineCov"> 752 : return intr_arg ? (int) intr_arg->val</span></a>
<a name="1866"><span class="lineNum"> 1866 </span> [<span class="branchCov" title="Branch 0 was taken 244 times"> + </span><span class="branchCov" title="Branch 1 was taken 264 times"> + </span>]:<span class="lineCov"> 772 : : (int) string_to_uint_upto(arg, NUM_INTR_OPTS - 1);</span></a>
<a name="1867"><span class="lineNum"> 1867 </span> : : }</a>
<a name="1868"><span class="lineNum"> 1868 </span> : : </a>
<a name="1869"><span class="lineNum"> 1869 </span> : : static int</a>
<a name="1870"><span class="lineNum"> 1870 </span> :<span class="lineCov"> 58 : parse_ts_arg(const char *in_arg)</span></a>
<a name="1871"><span class="lineNum"> 1871 </span> : : {</a>
<a name="1872"><span class="lineNum"> 1872 </span> :<span class="lineCov"> 58 : static const char format_pfx[] = "format:";</span></a>
<a name="1873"><span class="lineNum"> 1873 </span> :<span class="lineCov"> 58 : static const char scale_pfx[] = "precision:";</span></a>
<a name="1874"><span class="lineNum"> 1874 </span> : : </a>
<a name="1875"><span class="lineNum"> 1875 </span> :<span class="lineCov"> 58 : enum {</span></a>
<a name="1876"><span class="lineNum"> 1876 </span> : : TOKEN_FORMAT = 1 << 0,</a>
<a name="1877"><span class="lineNum"> 1877 </span> : : TOKEN_SCALE = 1 << 1,</a>
<a name="1878"><span class="lineNum"> 1878 </span> : : } token_type;</a>
<a name="1879"><span class="lineNum"> 1879 </span> :<span class="lineCov"> 58 : enum {</span></a>
<a name="1880"><span class="lineNum"> 1880 </span> : : FK_UNSET,</a>
<a name="1881"><span class="lineNum"> 1881 </span> : : FK_NONE,</a>
<a name="1882"><span class="lineNum"> 1882 </span> : : FK_TIME,</a>
<a name="1883"><span class="lineNum"> 1883 </span> : : FK_UNIX,</a>
<a name="1884"><span class="lineNum"> 1884 </span> :<span class="lineCov"> 58 : } format_kind = FK_UNSET;</span></a>
<a name="1885"><span class="lineNum"> 1885 </span> :<span class="lineCov"> 58 : int precision_width;</span></a>
<a name="1886"><span class="lineNum"> 1886 </span> :<span class="lineCov"> 58 : int precision_scale = 0;</span></a>
<a name="1887"><span class="lineNum"> 1887 </span> :<span class="lineCov"> 58 : char *arg = xstrdup(in_arg);</span></a>
<a name="1888"><span class="lineNum"> 1888 </span> :<span class="lineCov"> 58 : char *saveptr = NULL;</span></a>
<a name="1889"><span class="lineNum"> 1889 </span> : : </a>
<a name="1890"><span class="lineNum"> 1890 </span> :<span class="lineCov"> 58 : for (const char *token = strtok_r(arg, ",", &saveptr);</span></a>
<a name="1891"><span class="lineNum"> 1891 </span> [<span class="branchCov" title="Branch 0 was taken 76 times"> + </span><span class="branchCov" title="Branch 1 was taken 54 times"> + </span>]:<span class="lineCov"> 130 : token; token = strtok_r(NULL, ",", &saveptr)) {</span></a>
<a name="1892"><span class="lineNum"> 1892 </span> :<span class="lineCov"> 76 : token_type = TOKEN_FORMAT | TOKEN_SCALE;</span></a>
<a name="1893"><span class="lineNum"> 1893 </span> : : </a>
<a name="1894"><span class="lineNum"> 1894 </span> [<span class="branchCov" title="Branch 0 was taken 26 times"> + </span><span class="branchCov" title="Branch 1 was taken 50 times"> + </span>]:<span class="lineCov"> 76 : if (!strncasecmp(token, format_pfx, sizeof(format_pfx) - 1)) {</span></a>
<a name="1895"><span class="lineNum"> 1895 </span> :<span class="lineCov"> 26 : token += sizeof(format_pfx) - 1;</span></a>
<a name="1896"><span class="lineNum"> 1896 </span> :<span class="lineCov"> 26 : token_type = TOKEN_FORMAT;</span></a>
<a name="1897"><span class="lineNum"> 1897 </span> [<span class="branchCov" title="Branch 0 was taken 17 times"> + </span><span class="branchCov" title="Branch 1 was taken 33 times"> + </span>]:<span class="lineCov"> 50 : } else if (!strncasecmp(token, scale_pfx,</span></a>
<a name="1898"><span class="lineNum"> 1898 </span> : : sizeof(scale_pfx) - 1)) {</a>
<a name="1899"><span class="lineNum"> 1899 </span> :<span class="lineCov"> 17 : token += sizeof(scale_pfx) - 1;</span></a>
<a name="1900"><span class="lineNum"> 1900 </span> :<span class="lineCov"> 17 : token_type = TOKEN_SCALE;</span></a>
<a name="1901"><span class="lineNum"> 1901 </span> : : </a>
<a name="1902"><span class="lineNum"> 1902 </span> : : }</a>
<a name="1903"><span class="lineNum"> 1903 </span> : : </a>
<a name="1904"><span class="lineNum"> 1904 </span> [<span class="branchCov" title="Branch 0 was taken 59 times"> + </span><span class="branchCov" title="Branch 1 was taken 17 times"> + </span>]:<span class="lineCov"> 76 : if (token_type & TOKEN_FORMAT) {</span></a>
<a name="1905"><span class="lineNum"> 1905 </span> [<span class="branchCov" title="Branch 0 was taken 3 times"> + </span><span class="branchCov" title="Branch 1 was taken 56 times"> + </span>]:<span class="lineCov"> 59 : if (!strcasecmp(token, "none")) {</span></a>
<a name="1906"><span class="lineNum"> 1906 </span> :<span class="lineCov"> 3 : format_kind = FK_NONE;</span></a>
<a name="1907"><span class="lineNum"> 1907 </span> :<span class="lineCov"> 3 : continue;</span></a>
<a name="1908"><span class="lineNum"> 1908 </span> [<span class="branchCov" title="Branch 0 was taken 24 times"> + </span><span class="branchCov" title="Branch 1 was taken 32 times"> + </span>]:<span class="lineCov"> 56 : } else if (!strcasecmp(token, "time")) {</span></a>
<a name="1909"><span class="lineNum"> 1909 </span> :<span class="lineCov"> 24 : format_kind = FK_TIME;</span></a>
<a name="1910"><span class="lineNum"> 1910 </span> :<span class="lineCov"> 24 : continue;</span></a>
<a name="1911"><span class="lineNum"> 1911 </span> [<span class="branchCov" title="Branch 0 was taken 12 times"> + </span><span class="branchCov" title="Branch 1 was taken 20 times"> + </span>]:<span class="lineCov"> 32 : } else if (!strcasecmp(token, "unix")) {</span></a>
<a name="1912"><span class="lineNum"> 1912 </span> :<span class="lineCov"> 12 : format_kind = FK_UNIX;</span></a>
<a name="1913"><span class="lineNum"> 1913 </span> :<span class="lineCov"> 12 : continue;</span></a>
<a name="1914"><span class="lineNum"> 1914 </span> : : }</a>
<a name="1915"><span class="lineNum"> 1915 </span> : : }</a>
<a name="1916"><span class="lineNum"> 1916 </span> : : </a>
<a name="1917"><span class="lineNum"> 1917 </span> [<span class="branchCov" title="Branch 0 was taken 36 times"> + </span><span class="branchCov" title="Branch 1 was taken 1 time"> + </span>]:<span class="lineCov"> 37 : if (token_type & TOKEN_SCALE) {</span></a>
<a name="1918"><span class="lineNum"> 1918 </span> :<span class="lineCov"> 36 : precision_scale =</span></a>
<a name="1919"><span class="lineNum"> 1919 </span> :<span class="lineCov"> 36 : str2timescale_optarg(token, &precision_width);</span></a>
<a name="1920"><span class="lineNum"> 1920 </span> : : </a>
<a name="1921"><span class="lineNum"> 1921 </span> [<span class="branchCov" title="Branch 0 was taken 33 times"> + </span><span class="branchCov" title="Branch 1 was taken 3 times"> + </span>]:<span class="lineCov"> 36 : if (precision_scale > 0)</span></a>
<a name="1922"><span class="lineNum"> 1922 </span> :<span class="lineCov"> 33 : continue;</span></a>
<a name="1923"><span class="lineNum"> 1923 </span> : : }</a>
<a name="1924"><span class="lineNum"> 1924 </span> : : </a>
<a name="1925"><span class="lineNum"> 1925 </span> :<span class="lineCov"> 4 : free(arg);</span></a>
<a name="1926"><span class="lineNum"> 1926 </span> :<span class="lineCov"> 4 : return -1;</span></a>
<a name="1927"><span class="lineNum"> 1927 </span> : : }</a>
<a name="1928"><span class="lineNum"> 1928 </span> : : </a>
<a name="1929"><span class="lineNum"> 1929 </span> [<span class="branchCov" title="Branch 0 was taken 16 times"> + </span><span class="branchCov" title="Branch 1 was taken 2 times"> + </span><span class="branchCov" title="Branch 2 was taken 24 times"> + </span><span class="branchCov" title="Branch 3 was taken 12 times"> + </span> :<span class="lineCov"> 54 : switch (format_kind) {</span></a>
<span class="lineNum"> </span> <span class="branchNoCov" title="Branch 4 was not taken"> - </span>]
<a name="1930"><span class="lineNum"> 1930 </span> :<span class="lineCov"> 16 : case FK_UNSET:</span></a>
<a name="1931"><span class="lineNum"> 1931 </span> [<span class="branchCov" title="Branch 0 was taken 9 times"> + </span><span class="branchCov" title="Branch 1 was taken 7 times"> + </span>]:<span class="lineCov"> 16 : if (!tflag_format)</span></a>
<a name="1932"><span class="lineNum"> 1932 </span> :<span class="lineCov"> 9 : tflag_format = "%T";</span></a>
<a name="1933"><span class="lineNum"> 1933 </span> : : break;</a>
<a name="1934"><span class="lineNum"> 1934 </span> :<span class="lineCov"> 2 : case FK_NONE:</span></a>
<a name="1935"><span class="lineNum"> 1935 </span> :<span class="lineCov"> 2 : tflag_format = NULL;</span></a>
<a name="1936"><span class="lineNum"> 1936 </span> :<span class="lineCov"> 2 : break;</span></a>
<a name="1937"><span class="lineNum"> 1937 </span> :<span class="lineCov"> 24 : case FK_TIME:</span></a>
<a name="1938"><span class="lineNum"> 1938 </span> :<span class="lineCov"> 24 : tflag_format = "%T";</span></a>
<a name="1939"><span class="lineNum"> 1939 </span> :<span class="lineCov"> 24 : break;</span></a>
<a name="1940"><span class="lineNum"> 1940 </span> :<span class="lineCov"> 12 : case FK_UNIX:</span></a>
<a name="1941"><span class="lineNum"> 1941 </span> :<span class="lineCov"> 12 : tflag_format = "%s";</span></a>
<a name="1942"><span class="lineNum"> 1942 </span> :<span class="lineCov"> 12 : break;</span></a>
<a name="1943"><span class="lineNum"> 1943 </span> : : }</a>
<a name="1944"><span class="lineNum"> 1944 </span> : : </a>
<a name="1945"><span class="lineNum"> 1945 </span> [<span class="branchCov" title="Branch 0 was taken 30 times"> + </span><span class="branchCov" title="Branch 1 was taken 24 times"> + </span>]:<span class="lineCov"> 54 : if (precision_scale > 0) {</span></a>
<a name="1946"><span class="lineNum"> 1946 </span> :<span class="lineCov"> 30 : tflag_scale = precision_scale;</span></a>
<a name="1947"><span class="lineNum"> 1947 </span> :<span class="lineCov"> 30 : tflag_width = precision_width;</span></a>
<a name="1948"><span class="lineNum"> 1948 </span> : : }</a>
<a name="1949"><span class="lineNum"> 1949 </span> : : </a>
<a name="1950"><span class="lineNum"> 1950 </span> :<span class="lineCov"> 54 : free(arg);</span></a>
<a name="1951"><span class="lineNum"> 1951 </span> :<span class="lineCov"> 54 : return 0;</span></a>
<a name="1952"><span class="lineNum"> 1952 </span> : : }</a>
<a name="1953"><span class="lineNum"> 1953 </span> : : </a>
<a name="1954"><span class="lineNum"> 1954 </span> : : static void</a>
<a name="1955"><span class="lineNum"> 1955 </span> :<span class="lineCov"> 4 : remove_from_env(char **env, size_t *env_count, const char *var)</span></a>
<a name="1956"><span class="lineNum"> 1956 </span> : : {</a>
<a name="1957"><span class="lineNum"> 1957 </span> :<span class="lineCov"> 4 : const size_t len = strlen(var);</span></a>
<a name="1958"><span class="lineNum"> 1958 </span> :<span class="lineCov"> 4 : size_t w = 0;</span></a>
<a name="1959"><span class="lineNum"> 1959 </span> : : </a>
<a name="1960"><span class="lineNum"> 1960 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 4 times"> + </span>]:<span class="lineCov"> 4 : debug_func_msg("Removing variable \"%s\" from the command environment",</span></a>
<a name="1961"><span class="lineNum"> 1961 </span> : : var);</a>
<a name="1962"><span class="lineNum"> 1962 </span> : : </a>
<a name="1963"><span class="lineNum"> 1963 </span> [<span class="branchCov" title="Branch 0 was taken 350 times"> + </span><span class="branchCov" title="Branch 1 was taken 4 times"> + </span>]:<span class="lineCov"> 354 : for (size_t r = 0; r < *env_count; ++r) {</span></a>
<a name="1964"><span class="lineNum"> 1964 </span> [<span class="branchCov" title="Branch 0 was taken 4 times"> + </span><span class="branchCov" title="Branch 1 was taken 346 times"> + </span>]:<span class="lineCov"> 350 : if (!strncmp(env[r], var, len) &&</span></a>
<a name="1965"><span class="lineNum"> 1965 </span> [<span class="branchCov" title="Branch 0 was taken 2 times"> + </span><span class="branchCov" title="Branch 1 was taken 2 times"> + </span>]:<span class="lineCov"> 4 : (env[r][len] == '=' || env[r][len] == '\0')) {</span></a>
<a name="1966"><span class="lineNum"> 1966 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 2 times"> + </span>]:<span class="lineCov"> 2 : debug_func_msg("Skipping entry %zu (\"%s\")",</span></a>
<a name="1967"><span class="lineNum"> 1967 </span> : : r, env[r]);</a>
<a name="1968"><span class="lineNum"> 1968 </span> :<span class="lineCov"> 2 : continue;</span></a>
<a name="1969"><span class="lineNum"> 1969 </span> : : }</a>
<a name="1970"><span class="lineNum"> 1970 </span> [<span class="branchCov" title="Branch 0 was taken 18 times"> + </span><span class="branchCov" title="Branch 1 was taken 330 times"> + </span>]:<span class="lineCov"> 348 : if (w < r) {</span></a>
<a name="1971"><span class="lineNum"> 1971 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 18 times"> + </span>]:<span class="lineCov"> 18 : debug_func_msg("Copying entry %zu to %zu", r, w);</span></a>
<a name="1972"><span class="lineNum"> 1972 </span> :<span class="lineCov"> 18 : env[w] = env[r];</span></a>
<a name="1973"><span class="lineNum"> 1973 </span> : : }</a>
<a name="1974"><span class="lineNum"> 1974 </span> :<span class="lineCov"> 348 : ++w;</span></a>
<a name="1975"><span class="lineNum"> 1975 </span> : : }</a>
<a name="1976"><span class="lineNum"> 1976 </span> : : </a>
<a name="1977"><span class="lineNum"> 1977 </span> [<span class="branchCov" title="Branch 0 was taken 2 times"> + </span><span class="branchCov" title="Branch 1 was taken 2 times"> + </span>]:<span class="lineCov"> 4 : if (w < *env_count) {</span></a>
<a name="1978"><span class="lineNum"> 1978 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 2 times"> + </span>]:<span class="lineCov"> 2 : debug_func_msg("Decreasing env count from %zu to %zu",</span></a>
<a name="1979"><span class="lineNum"> 1979 </span> : : *env_count, w);</a>
<a name="1980"><span class="lineNum"> 1980 </span> :<span class="lineCov"> 2 : *env_count = w;</span></a>
<a name="1981"><span class="lineNum"> 1981 </span> : : }</a>
<a name="1982"><span class="lineNum"> 1982 </span> :<span class="lineCov"> 4 : }</span></a>
<a name="1983"><span class="lineNum"> 1983 </span> : : </a>
<a name="1984"><span class="lineNum"> 1984 </span> : : static void</a>
<a name="1985"><span class="lineNum"> 1985 </span> :<span class="lineCov"> 5 : add_to_env(char **env, size_t *env_count, char *var, const size_t len)</span></a>
<a name="1986"><span class="lineNum"> 1986 </span> : : {</a>
<a name="1987"><span class="lineNum"> 1987 </span> :<span class="lineCov"> 5 : size_t r;</span></a>
<a name="1988"><span class="lineNum"> 1988 </span> : : </a>
<a name="1989"><span class="lineNum"> 1989 </span> [<span class="branchCov" title="Branch 0 was taken 262 times"> + </span><span class="branchCov" title="Branch 1 was taken 2 times"> + </span>]:<span class="lineCov"> 264 : for (r = 0; r < *env_count; ++r) {</span></a>
<a name="1990"><span class="lineNum"> 1990 </span> [<span class="branchCov" title="Branch 0 was taken 3 times"> + </span><span class="branchCov" title="Branch 1 was taken 259 times"> + </span>]:<span class="lineCov"> 262 : if (!strncmp(env[r], var, len) &&</span></a>
<a name="1991"><span class="lineNum"> 1991 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 3 times"> + </span>]:<span class="lineCov"> 3 : (env[r][len] == '=' || env[r][len] == '\0'))</span></a>
<a name="1992"><span class="lineNum"> 1992 </span> : : break;</a>
<a name="1993"><span class="lineNum"> 1993 </span> : : }</a>
<a name="1994"><span class="lineNum"> 1994 </span> : : </a>
<a name="1995"><span class="lineNum"> 1995 </span> [<span class="branchCov" title="Branch 0 was taken 3 times"> + </span><span class="branchCov" title="Branch 1 was taken 2 times"> + </span>]:<span class="lineCov"> 5 : if (r < *env_count) {</span></a>
<a name="1996"><span class="lineNum"> 1996 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 3 times"> + </span>]:<span class="lineCov"> 3 : debug_func_msg("Replacing entry %zu (\"%s\")"</span></a>
<a name="1997"><span class="lineNum"> 1997 </span> : : ", key=\"%.*s\", var=\"%s\"",</a>
<a name="1998"><span class="lineNum"> 1998 </span> : : r, env[r], (int) len, var, var);</a>
<a name="1999"><span class="lineNum"> 1999 </span> : : } else {</a>
<a name="2000"><span class="lineNum"> 2000 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 2 times"> + </span>]:<span class="lineCov"> 2 : debug_func_msg("Adding entry %zu"</span></a>
<a name="2001"><span class="lineNum"> 2001 </span> : : ", key=\"%.*s\", var=\"%s\"",</a>
<a name="2002"><span class="lineNum"> 2002 </span> : : r, (int) len, var, var);</a>
<a name="2003"><span class="lineNum"> 2003 </span> :<span class="lineCov"> 2 : *env_count += 1;</span></a>
<a name="2004"><span class="lineNum"> 2004 </span> : : }</a>
<a name="2005"><span class="lineNum"> 2005 </span> : : </a>
<a name="2006"><span class="lineNum"> 2006 </span> :<span class="lineCov"> 5 : env[r] = var;</span></a>
<a name="2007"><span class="lineNum"> 2007 </span> :<span class="lineCov"> 5 : }</span></a>
<a name="2008"><span class="lineNum"> 2008 </span> : : </a>
<a name="2009"><span class="lineNum"> 2009 </span> : : static void</a>
<a name="2010"><span class="lineNum"> 2010 </span> :<span class="lineCov"> 9 : update_env(char **env, size_t *env_count, char *var)</span></a>
<a name="2011"><span class="lineNum"> 2011 </span> : : {</a>
<a name="2012"><span class="lineNum"> 2012 </span> :<span class="lineCov"> 9 : char *val = strchr(var, '=');</span></a>
<a name="2013"><span class="lineNum"> 2013 </span> : : </a>
<a name="2014"><span class="lineNum"> 2014 </span> [<span class="branchCov" title="Branch 0 was taken 5 times"> + </span><span class="branchCov" title="Branch 1 was taken 4 times"> + </span>]:<span class="lineCov"> 9 : if (val)</span></a>
<a name="2015"><span class="lineNum"> 2015 </span> :<span class="lineCov"> 5 : add_to_env(env, env_count, var, val - var);</span></a>
<a name="2016"><span class="lineNum"> 2016 </span> : : else</a>
<a name="2017"><span class="lineNum"> 2017 </span> :<span class="lineCov"> 4 : remove_from_env(env, env_count, var);</span></a>
<a name="2018"><span class="lineNum"> 2018 </span> :<span class="lineCov"> 9 : }</span></a>
<a name="2019"><span class="lineNum"> 2019 </span> : : </a>
<a name="2020"><span class="lineNum"> 2020 </span> : : static char **</a>
<a name="2021"><span class="lineNum"> 2021 </span> :<span class="lineCov"> 17333 : make_env(char **orig_env, char *const *env_changes, size_t env_change_count)</span></a>
<a name="2022"><span class="lineNum"> 2022 </span> : : {</a>
<a name="2023"><span class="lineNum"> 2023 </span> [<span class="branchCov" title="Branch 0 was taken 5 times"> + </span><span class="branchCov" title="Branch 1 was taken 17328 times"> + </span>]:<span class="lineCov"> 17333 : if (!env_change_count)</span></a>
<a name="2024"><span class="lineNum"> 2024 </span> : : return orig_env;</a>
<a name="2025"><span class="lineNum"> 2025 </span> : : </a>
<a name="2026"><span class="lineNum"> 2026 </span> :<span class="lineCov"> 5 : char **new_env;</span></a>
<a name="2027"><span class="lineNum"> 2027 </span> :<span class="lineCov"> 5 : size_t new_env_count = 0;</span></a>
<a name="2028"><span class="lineNum"> 2028 </span> :<span class="lineCov"> 5 : size_t new_env_size;</span></a>
<a name="2029"><span class="lineNum"> 2029 </span> : : </a>
<a name="2030"><span class="lineNum"> 2030 </span> : : /* Determining the environment variable count. */</a>
<a name="2031"><span class="lineNum"> 2031 </span> [<span class="branchCov" title="Branch 0 was taken 5 times"> + </span><span class="branchNoCov" title="Branch 1 was not taken"> - </span>]:<span class="lineCov"> 5 : if (orig_env) {</span></a>
<a name="2032"><span class="lineNum"> 2032 </span> [<span class="branchCov" title="Branch 0 was taken 425 times"> + </span><span class="branchCov" title="Branch 1 was taken 5 times"> + </span>]:<span class="lineCov"> 430 : for (; orig_env[new_env_count]; ++new_env_count)</span></a>
<a name="2033"><span class="lineNum"> 2033 </span> : : ;</a>
<a name="2034"><span class="lineNum"> 2034 </span> : : }</a>
<a name="2035"><span class="lineNum"> 2035 </span> :<span class="lineCov"> 5 : new_env_size = new_env_count + env_change_count;</span></a>
<a name="2036"><span class="lineNum"> 2036 </span> : : </a>
<a name="2037"><span class="lineNum"> 2037 </span> [<span class="branchCov" title="Branch 0 was taken 5 times"> + </span><span class="branchNoCov" title="Branch 1 was not taken"> - </span><span class="branchNoCov" title="Branch 2 was not taken"> - </span><span class="branchCov" title="Branch 3 was taken 5 times"> + </span>]:<span class="lineCov"> 5 : if (new_env_size < new_env_count || new_env_size < env_change_count ||</span></a>
<a name="2038"><span class="lineNum"> 2038 </span> : : new_env_size + 1 < new_env_size)</a>
<a name="2039"><span class="lineNum"> 2039 </span> :<span class="lineNoCov"> 0 : error_msg_and_die("Cannot construct new environment: the sum "</span></a>
<a name="2040"><span class="lineNum"> 2040 </span> : : "of old environment variable count (%zu) and "</a>
<a name="2041"><span class="lineNum"> 2041 </span> : : "environment changes count (%zu) is too big",</a>
<a name="2042"><span class="lineNum"> 2042 </span> : : new_env_count, env_change_count);</a>
<a name="2043"><span class="lineNum"> 2043 </span> : : </a>
<a name="2044"><span class="lineNum"> 2044 </span> :<span class="lineCov"> 5 : new_env_size++;</span></a>
<a name="2045"><span class="lineNum"> 2045 </span> :<span class="lineCov"> 5 : new_env = xallocarray(new_env_size, sizeof(*new_env));</span></a>
<a name="2046"><span class="lineNum"> 2046 </span> [<span class="branchCov" title="Branch 0 was taken 5 times"> + </span><span class="branchNoCov" title="Branch 1 was not taken"> - </span>]:<span class="lineCov"> 5 : if (new_env_count)</span></a>
<a name="2047"><span class="lineNum"> 2047 </span> :<span class="lineCov"> 5 : memcpy(new_env, orig_env, new_env_count * sizeof(*orig_env));</span></a>
<a name="2048"><span class="lineNum"> 2048 </span> : : </a>
<a name="2049"><span class="lineNum"> 2049 </span> [<span class="branchCov" title="Branch 0 was taken 9 times"> + </span><span class="branchCov" title="Branch 1 was taken 5 times"> + </span>]:<span class="lineCov"> 14 : for (size_t i = 0; i < env_change_count; ++i)</span></a>
<a name="2050"><span class="lineNum"> 2050 </span> :<span class="lineCov"> 9 : update_env(new_env, &new_env_count, env_changes[i]);</span></a>
<a name="2051"><span class="lineNum"> 2051 </span> : : </a>
<a name="2052"><span class="lineNum"> 2052 </span> :<span class="lineCov"> 5 : new_env[new_env_count] = NULL;</span></a>
<a name="2053"><span class="lineNum"> 2053 </span> : : </a>
<a name="2054"><span class="lineNum"> 2054 </span> :<span class="lineCov"> 5 : return new_env;</span></a>
<a name="2055"><span class="lineNum"> 2055 </span> : : }</a>
<a name="2056"><span class="lineNum"> 2056 </span> : : </a>
<a name="2057"><span class="lineNum"> 2057 </span> : : /*</a>
<a name="2058"><span class="lineNum"> 2058 </span> : : * Initialization part of main() was eating much stack (~0.5k),</a>
<a name="2059"><span class="lineNum"> 2059 </span> : : * which was unused after init.</a>
<a name="2060"><span class="lineNum"> 2060 </span> : : * We can reuse it if we move init code into a separate function.</a>
<a name="2061"><span class="lineNum"> 2061 </span> : : *</a>
<a name="2062"><span class="lineNum"> 2062 </span> : : * Don't want main() to inline us and defeat the reason</a>
<a name="2063"><span class="lineNum"> 2063 </span> : : * we have a separate function.</a>
<a name="2064"><span class="lineNum"> 2064 </span> : : */</a>
<a name="2065"><span class="lineNum"> 2065 </span> : : static void ATTRIBUTE_NOINLINE</a>
<a name="2066"><span class="lineNum"> 2066 </span> :<span class="lineCov"> 23834 : init(int argc, char *argv[])</span></a>
<a name="2067"><span class="lineNum"> 2067 </span> : : {</a>
<a name="2068"><span class="lineNum"> 2068 </span> :<span class="lineCov"> 23834 : static const char qflag_qual[] = "attach,personality";</span></a>
<a name="2069"><span class="lineNum"> 2069 </span> :<span class="lineCov"> 23834 : static const char qqflag_qual[] = "exit,attach,personality";</span></a>
<a name="2070"><span class="lineNum"> 2070 </span> :<span class="lineCov"> 23834 : static const char qqqflag_qual[] = "all";</span></a>
<a name="2071"><span class="lineNum"> 2071 </span> :<span class="lineCov"> 23834 : static const char yflag_qual[] = "path";</span></a>
<a name="2072"><span class="lineNum"> 2072 </span> :<span class="lineCov"> 23834 : static const char yyflag_qual[] = "all";</span></a>
<a name="2073"><span class="lineNum"> 2073 </span> :<span class="lineCov"> 23834 : static const char tflag_str[] = "format:time";</span></a>
<a name="2074"><span class="lineNum"> 2074 </span> :<span class="lineCov"> 23834 : static const char ttflag_str[] = "precision:us,format:time";</span></a>
<a name="2075"><span class="lineNum"> 2075 </span> :<span class="lineCov"> 23834 : static const char tttflag_str[] = "format:unix,precision:us";</span></a>
<a name="2076"><span class="lineNum"> 2076 </span> : : #ifdef ENABLE_SECONTEXT</a>
<a name="2077"><span class="lineNum"> 2077 </span> :<span class="lineCov"> 23834 : static const char secontext_qual[] = "!full,mismatch";</span></a>
<a name="2078"><span class="lineNum"> 2078 </span> : : #endif</a>
<a name="2079"><span class="lineNum"> 2079 </span> : : </a>
<a name="2080"><span class="lineNum"> 2080 </span> :<span class="lineCov"> 23834 : int c, i;</span></a>
<a name="2081"><span class="lineNum"> 2081 </span> :<span class="lineCov"> 23834 : int optF = 0, zflags = 0;</span></a>
<a name="2082"><span class="lineNum"> 2082 </span> :<span class="lineCov"> 23834 : int lopt_idx;</span></a>
<a name="2083"><span class="lineNum"> 2083 </span> :<span class="lineCov"> 23834 : int daemonized_tracer_long = DAEMONIZE_NONE;</span></a>
<a name="2084"><span class="lineNum"> 2084 </span> :<span class="lineCov"> 23834 : int xflag_long = -1;</span></a>
<a name="2085"><span class="lineNum"> 2085 </span> :<span class="lineCov"> 23834 : int qflag_short = 0;</span></a>
<a name="2086"><span class="lineNum"> 2086 </span> :<span class="lineCov"> 23834 : int followfork_short = 0;</span></a>
<a name="2087"><span class="lineNum"> 2087 </span> :<span class="lineCov"> 23834 : int yflag_short = 0;</span></a>
<a name="2088"><span class="lineNum"> 2088 </span> :<span class="lineCov"> 23834 : bool tflag_long_set = false;</span></a>
<a name="2089"><span class="lineNum"> 2089 </span> :<span class="lineCov"> 23834 : int tflag_short = 0;</span></a>
<a name="2090"><span class="lineNum"> 2090 </span> :<span class="lineCov"> 23834 : bool columns_set = false;</span></a>
<a name="2091"><span class="lineNum"> 2091 </span> :<span class="lineCov"> 23834 : bool sortby_set = false;</span></a>
<a name="2092"><span class="lineNum"> 2092 </span> : : </a>
<a name="2093"><span class="lineNum"> 2093 </span> : : /*</a>
<a name="2094"><span class="lineNum"> 2094 </span> : : * We can initialise global_path_set only after tracing backend</a>
<a name="2095"><span class="lineNum"> 2095 </span> : : * initialisation, so we store pointers to all the paths from</a>
<a name="2096"><span class="lineNum"> 2096 </span> : : * command-line arguments during parsing in this array and then,</a>
<a name="2097"><span class="lineNum"> 2097 </span> : : * after the successful backend initialisation, iterate over it</a>
<a name="2098"><span class="lineNum"> 2098 </span> : : * in order to add them to global_path_set.</a>
<a name="2099"><span class="lineNum"> 2099 </span> : : */</a>
<a name="2100"><span class="lineNum"> 2100 </span> :<span class="lineCov"> 23834 : const char **pathtrace_paths = NULL;</span></a>
<a name="2101"><span class="lineNum"> 2101 </span> :<span class="lineCov"> 23834 : size_t pathtrace_size = 0;</span></a>
<a name="2102"><span class="lineNum"> 2102 </span> :<span class="lineCov"> 23834 : size_t pathtrace_count = 0;</span></a>
<a name="2103"><span class="lineNum"> 2103 </span> : : </a>
<a name="2104"><span class="lineNum"> 2104 </span> : : /**</a>
<a name="2105"><span class="lineNum"> 2105 </span> : : * Storage for environment changes requested for command. They</a>
<a name="2106"><span class="lineNum"> 2106 </span> : : * are stored in a temporary array and not applied as is during</a>
<a name="2107"><span class="lineNum"> 2107 </span> : : * command line parsing for two reasons:</a>
<a name="2108"><span class="lineNum"> 2108 </span> : : * - putenv() changes environment of the tracer as well,</a>
<a name="2109"><span class="lineNum"> 2109 </span> : : * which is unacceptable.</a>
<a name="2110"><span class="lineNum"> 2110 </span> : : * - Environment changes have to be applied</a>
<a name="2111"><span class="lineNum"> 2111 </span> : : * in a tracing-backend-specific way.</a>
<a name="2112"><span class="lineNum"> 2112 </span> : : */</a>
<a name="2113"><span class="lineNum"> 2113 </span> :<span class="lineCov"> 23834 : char **env_changes = NULL;</span></a>
<a name="2114"><span class="lineNum"> 2114 </span> :<span class="lineCov"> 23834 : size_t env_change_size = 0;</span></a>
<a name="2115"><span class="lineNum"> 2115 </span> :<span class="lineCov"> 23834 : size_t env_change_count = 0;</span></a>
<a name="2116"><span class="lineNum"> 2116 </span> : : </a>
<a name="2117"><span class="lineNum"> 2117 </span> [<span class="branchCov" title="Branch 0 was taken 23834 times"> + </span><span class="branchNoCov" title="Branch 1 was not taken"> - </span><span class="branchCov" title="Branch 2 was taken 1 time"> + </span><span class="branchCov" title="Branch 3 was taken 23833 times"> + </span>]:<span class="lineCov"> 23834 : if (!program_invocation_name || !*program_invocation_name) {</span></a>
<a name="2118"><span class="lineNum"> 2118 </span> :<span class="lineCov"> 1 : static char name[] = "strace";</span></a>
<a name="2119"><span class="lineNum"> 2119 </span> :<span class="lineCov"> 1 : program_invocation_name =</span></a>
<a name="2120"><span class="lineNum"> 2120 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 1 time"> + </span><span class="branchNoCov" title="Branch 2 was not taken"> - </span><span class="branchNoCov" title="Branch 3 was not taken"> - </span> :<span class="lineCov"> 1 : (argc > 0 && argv[0] && *argv[0]) ? argv[0] : name;</span></a>
<span class="lineNum"> </span> <span class="branchNoCov" title="Branch 4 was not taken"> - </span><span class="branchNoCov" title="Branch 5 was not taken"> - </span>]
<a name="2121"><span class="lineNum"> 2121 </span> : : }</a>
<a name="2122"><span class="lineNum"> 2122 </span> : : </a>
<a name="2123"><span class="lineNum"> 2123 </span> :<span class="lineCov"> 23834 : strace_tracer_pid = getpid();</span></a>
<a name="2124"><span class="lineNum"> 2124 </span> : : </a>
<a name="2125"><span class="lineNum"> 2125 </span> :<span class="lineCov"> 23834 : os_release = get_os_release();</span></a>
<a name="2126"><span class="lineNum"> 2126 </span> : : </a>
<a name="2127"><span class="lineNum"> 2127 </span> :<span class="lineCov"> 23834 : pidns_init();</span></a>
<a name="2128"><span class="lineNum"> 2128 </span> : : </a>
<a name="2129"><span class="lineNum"> 2129 </span> :<span class="lineCov"> 23834 : shared_log = stderr;</span></a>
<a name="2130"><span class="lineNum"> 2130 </span> :<span class="lineCov"> 23834 : set_sortby(DEFAULT_SORTBY);</span></a>
<a name="2131"><span class="lineNum"> 2131 </span> :<span class="lineCov"> 23834 : set_personality(DEFAULT_PERSONALITY);</span></a>
<a name="2132"><span class="lineNum"> 2132 </span> :<span class="lineCov"> 23834 : qualify_trace("all");</span></a>
<a name="2133"><span class="lineNum"> 2133 </span> :<span class="lineCov"> 23834 : qualify_abbrev("all");</span></a>
<a name="2134"><span class="lineNum"> 2134 </span> :<span class="lineCov"> 23834 : qualify_verbose("all");</span></a>
<a name="2135"><span class="lineNum"> 2135 </span> : : #if DEFAULT_QUAL_FLAGS != (QUAL_TRACE | QUAL_ABBREV | QUAL_VERBOSE)</a>
<a name="2136"><span class="lineNum"> 2136 </span> : : # error Bug in DEFAULT_QUAL_FLAGS</a>
<a name="2137"><span class="lineNum"> 2137 </span> : : #endif</a>
<a name="2138"><span class="lineNum"> 2138 </span> :<span class="lineCov"> 23834 : qualify_status("all");</span></a>
<a name="2139"><span class="lineNum"> 2139 </span> :<span class="lineCov"> 23834 : qualify_quiet("none");</span></a>
<a name="2140"><span class="lineNum"> 2140 </span> :<span class="lineCov"> 23834 : qualify_decode_fd("none");</span></a>
<a name="2141"><span class="lineNum"> 2141 </span> :<span class="lineCov"> 23834 : qualify_signals("all");</span></a>
<a name="2142"><span class="lineNum"> 2142 </span> : : #ifdef ENABLE_SECONTEXT</a>
<a name="2143"><span class="lineNum"> 2143 </span> :<span class="lineCov"> 23834 : qualify_secontext("none");</span></a>
<a name="2144"><span class="lineNum"> 2144 </span> : : #endif</a>
<a name="2145"><span class="lineNum"> 2145 </span> : : </a>
<a name="2146"><span class="lineNum"> 2146 </span> :<span class="lineCov"> 23834 : static const char optstring[] =</span></a>
<a name="2147"><span class="lineNum"> 2147 </span> : : "+a:Ab:cCdDe:E:fFhiI:kno:O:p:P:qrs:S:tTu:U:vVwxX:yYzZ";</a>
<a name="2148"><span class="lineNum"> 2148 </span> : : </a>
<a name="2149"><span class="lineNum"> 2149 </span> :<span class="lineCov"> 23834 : enum {</span></a>
<a name="2150"><span class="lineNum"> 2150 </span> : : GETOPT_SECCOMP = 0x100,</a>
<a name="2151"><span class="lineNum"> 2151 </span> : : GETOPT_DAEMONIZE,</a>
<a name="2152"><span class="lineNum"> 2152 </span> : : GETOPT_HEX_STR,</a>
<a name="2153"><span class="lineNum"> 2153 </span> : : GETOPT_FOLLOWFORKS,</a>
<a name="2154"><span class="lineNum"> 2154 </span> : : GETOPT_OUTPUT_SEPARATELY,</a>
<a name="2155"><span class="lineNum"> 2155 </span> : : GETOPT_TS,</a>
<a name="2156"><span class="lineNum"> 2156 </span> : : GETOPT_PIDNS_TRANSLATION,</a>
<a name="2157"><span class="lineNum"> 2157 </span> : : </a>
<a name="2158"><span class="lineNum"> 2158 </span> : : GETOPT_QUAL_TRACE,</a>
<a name="2159"><span class="lineNum"> 2159 </span> : : GETOPT_QUAL_ABBREV,</a>
<a name="2160"><span class="lineNum"> 2160 </span> : : GETOPT_QUAL_VERBOSE,</a>
<a name="2161"><span class="lineNum"> 2161 </span> : : GETOPT_QUAL_RAW,</a>
<a name="2162"><span class="lineNum"> 2162 </span> : : GETOPT_QUAL_SIGNAL,</a>
<a name="2163"><span class="lineNum"> 2163 </span> : : GETOPT_QUAL_STATUS,</a>
<a name="2164"><span class="lineNum"> 2164 </span> : : GETOPT_QUAL_READ,</a>
<a name="2165"><span class="lineNum"> 2165 </span> : : GETOPT_QUAL_WRITE,</a>
<a name="2166"><span class="lineNum"> 2166 </span> : : GETOPT_QUAL_FAULT,</a>
<a name="2167"><span class="lineNum"> 2167 </span> : : GETOPT_QUAL_INJECT,</a>
<a name="2168"><span class="lineNum"> 2168 </span> : : GETOPT_QUAL_KVM,</a>
<a name="2169"><span class="lineNum"> 2169 </span> : : GETOPT_QUAL_QUIET,</a>
<a name="2170"><span class="lineNum"> 2170 </span> : : GETOPT_QUAL_DECODE_FD,</a>
<a name="2171"><span class="lineNum"> 2171 </span> : : GETOPT_QUAL_DECODE_PID,</a>
<a name="2172"><span class="lineNum"> 2172 </span> : : #ifdef ENABLE_SECONTEXT</a>
<a name="2173"><span class="lineNum"> 2173 </span> : : GETOPT_QUAL_SECONTEXT,</a>
<a name="2174"><span class="lineNum"> 2174 </span> : : #endif</a>
<a name="2175"><span class="lineNum"> 2175 </span> : : };</a>
<a name="2176"><span class="lineNum"> 2176 </span> :<span class="lineCov"> 23834 : static const struct option longopts[] = {</span></a>
<a name="2177"><span class="lineNum"> 2177 </span> : : { "columns", required_argument, 0, 'a' },</a>
<a name="2178"><span class="lineNum"> 2178 </span> : : { "output-append-mode", no_argument, 0, 'A' },</a>
<a name="2179"><span class="lineNum"> 2179 </span> : : { "detach-on", required_argument, 0, 'b' },</a>
<a name="2180"><span class="lineNum"> 2180 </span> : : { "summary-only", no_argument, 0, 'c' },</a>
<a name="2181"><span class="lineNum"> 2181 </span> : : { "summary", no_argument, 0, 'C' },</a>
<a name="2182"><span class="lineNum"> 2182 </span> : : { "debug", no_argument, 0, 'd' },</a>
<a name="2183"><span class="lineNum"> 2183 </span> : : { "daemonize", optional_argument, 0, GETOPT_DAEMONIZE },</a>
<a name="2184"><span class="lineNum"> 2184 </span> : : { "daemonised", optional_argument, 0, GETOPT_DAEMONIZE },</a>
<a name="2185"><span class="lineNum"> 2185 </span> : : { "daemonized", optional_argument, 0, GETOPT_DAEMONIZE },</a>
<a name="2186"><span class="lineNum"> 2186 </span> : : { "env", required_argument, 0, 'E' },</a>
<a name="2187"><span class="lineNum"> 2187 </span> : : { "follow-forks", no_argument, 0, GETOPT_FOLLOWFORKS },</a>
<a name="2188"><span class="lineNum"> 2188 </span> : : { "output-separately", no_argument, 0,</a>
<a name="2189"><span class="lineNum"> 2189 </span> : : GETOPT_OUTPUT_SEPARATELY },</a>
<a name="2190"><span class="lineNum"> 2190 </span> : : { "help", no_argument, 0, 'h' },</a>
<a name="2191"><span class="lineNum"> 2191 </span> : : { "instruction-pointer", no_argument, 0, 'i' },</a>
<a name="2192"><span class="lineNum"> 2192 </span> : : { "interruptible", required_argument, 0, 'I' },</a>
<a name="2193"><span class="lineNum"> 2193 </span> : : { "stack-traces", no_argument, 0, 'k' },</a>
<a name="2194"><span class="lineNum"> 2194 </span> : : { "syscall-number", no_argument, 0, 'n' },</a>
<a name="2195"><span class="lineNum"> 2195 </span> : : { "output", required_argument, 0, 'o' },</a>
<a name="2196"><span class="lineNum"> 2196 </span> : : { "summary-syscall-overhead", required_argument, 0, 'O' },</a>
<a name="2197"><span class="lineNum"> 2197 </span> : : { "attach", required_argument, 0, 'p' },</a>
<a name="2198"><span class="lineNum"> 2198 </span> : : { "trace-path", required_argument, 0, 'P' },</a>
<a name="2199"><span class="lineNum"> 2199 </span> : : { "relative-timestamps", optional_argument, 0, 'r' },</a>
<a name="2200"><span class="lineNum"> 2200 </span> : : { "string-limit", required_argument, 0, 's' },</a>
<a name="2201"><span class="lineNum"> 2201 </span> : : { "summary-sort-by", required_argument, 0, 'S' },</a>
<a name="2202"><span class="lineNum"> 2202 </span> : : { "absolute-timestamps", optional_argument, 0, GETOPT_TS },</a>
<a name="2203"><span class="lineNum"> 2203 </span> : : { "timestamps", optional_argument, 0, GETOPT_TS },</a>
<a name="2204"><span class="lineNum"> 2204 </span> : : { "syscall-times", optional_argument, 0, 'T' },</a>
<a name="2205"><span class="lineNum"> 2205 </span> : : { "user", required_argument, 0, 'u' },</a>
<a name="2206"><span class="lineNum"> 2206 </span> : : { "summary-columns", required_argument, 0, 'U' },</a>
<a name="2207"><span class="lineNum"> 2207 </span> : : { "no-abbrev", no_argument, 0, 'v' },</a>
<a name="2208"><span class="lineNum"> 2208 </span> : : { "version", no_argument, 0, 'V' },</a>
<a name="2209"><span class="lineNum"> 2209 </span> : : { "summary-wall-clock", no_argument, 0, 'w' },</a>
<a name="2210"><span class="lineNum"> 2210 </span> : : { "strings-in-hex", optional_argument, 0, GETOPT_HEX_STR },</a>
<a name="2211"><span class="lineNum"> 2211 </span> : : { "const-print-style", required_argument, 0, 'X' },</a>
<a name="2212"><span class="lineNum"> 2212 </span> : : { "pidns-translation", no_argument , 0, GETOPT_PIDNS_TRANSLATION },</a>
<a name="2213"><span class="lineNum"> 2213 </span> : : { "successful-only", no_argument, 0, 'z' },</a>
<a name="2214"><span class="lineNum"> 2214 </span> : : { "failed-only", no_argument, 0, 'Z' },</a>
<a name="2215"><span class="lineNum"> 2215 </span> : : { "failing-only", no_argument, 0, 'Z' },</a>
<a name="2216"><span class="lineNum"> 2216 </span> : : { "seccomp-bpf", no_argument, 0, GETOPT_SECCOMP },</a>
<a name="2217"><span class="lineNum"> 2217 </span> : : </a>
<a name="2218"><span class="lineNum"> 2218 </span> : : { "trace", required_argument, 0, GETOPT_QUAL_TRACE },</a>
<a name="2219"><span class="lineNum"> 2219 </span> : : { "abbrev", required_argument, 0, GETOPT_QUAL_ABBREV },</a>
<a name="2220"><span class="lineNum"> 2220 </span> : : { "verbose", required_argument, 0, GETOPT_QUAL_VERBOSE },</a>
<a name="2221"><span class="lineNum"> 2221 </span> : : { "raw", required_argument, 0, GETOPT_QUAL_RAW },</a>
<a name="2222"><span class="lineNum"> 2222 </span> : : { "signals", required_argument, 0, GETOPT_QUAL_SIGNAL },</a>
<a name="2223"><span class="lineNum"> 2223 </span> : : { "status", required_argument, 0, GETOPT_QUAL_STATUS },</a>
<a name="2224"><span class="lineNum"> 2224 </span> : : { "read", required_argument, 0, GETOPT_QUAL_READ },</a>
<a name="2225"><span class="lineNum"> 2225 </span> : : { "write", required_argument, 0, GETOPT_QUAL_WRITE },</a>
<a name="2226"><span class="lineNum"> 2226 </span> : : { "fault", required_argument, 0, GETOPT_QUAL_FAULT },</a>
<a name="2227"><span class="lineNum"> 2227 </span> : : { "inject", required_argument, 0, GETOPT_QUAL_INJECT },</a>
<a name="2228"><span class="lineNum"> 2228 </span> : : { "kvm", required_argument, 0, GETOPT_QUAL_KVM },</a>
<a name="2229"><span class="lineNum"> 2229 </span> : : { "quiet", optional_argument, 0, GETOPT_QUAL_QUIET },</a>
<a name="2230"><span class="lineNum"> 2230 </span> : : { "silent", optional_argument, 0, GETOPT_QUAL_QUIET },</a>
<a name="2231"><span class="lineNum"> 2231 </span> : : { "silence", optional_argument, 0, GETOPT_QUAL_QUIET },</a>
<a name="2232"><span class="lineNum"> 2232 </span> : : { "decode-fds", optional_argument, 0, GETOPT_QUAL_DECODE_FD },</a>
<a name="2233"><span class="lineNum"> 2233 </span> : : { "decode-pids",required_argument, 0, GETOPT_QUAL_DECODE_PID },</a>
<a name="2234"><span class="lineNum"> 2234 </span> : : #ifdef ENABLE_SECONTEXT</a>
<a name="2235"><span class="lineNum"> 2235 </span> : : { "secontext", optional_argument, 0, GETOPT_QUAL_SECONTEXT },</a>
<a name="2236"><span class="lineNum"> 2236 </span> : : #endif</a>
<a name="2237"><span class="lineNum"> 2237 </span> : : </a>
<a name="2238"><span class="lineNum"> 2238 </span> : : { 0, 0, 0, 0 }</a>
<a name="2239"><span class="lineNum"> 2239 </span> : : };</a>
<a name="2240"><span class="lineNum"> 2240 </span> : : </a>
<a name="2241"><span class="lineNum"> 2241 </span> :<span class="lineCov"> 23834 : lopt_idx = -1;</span></a>
<a name="2242"><span class="lineNum"> 2242 </span> [<span class="branchCov" title="Branch 0 was taken 101430 times"> + </span><span class="branchCov" title="Branch 1 was taken 17606 times"> + </span>]:<span class="lineCov"> 142870 : while ((c = getopt_long(argc, argv, optstring, longopts, &lopt_idx)) != EOF) {</span></a>
<a name="2243"><span class="lineNum"> 2243 </span> :<span class="lineCov"> 202860 : const struct option *lopt = lopt_idx >= 0</span></a>
<a name="2244"><span class="lineNum"> 2244 </span> :<span class="lineCov"> 101430 : && (unsigned) lopt_idx < ARRAY_SIZE(longopts)</span></a>
<a name="2245"><span class="lineNum"> 2245 </span> [<span class="branchCov" title="Branch 0 was taken 2810 times"> + </span><span class="branchCov" title="Branch 1 was taken 98620 times"> + </span>]:<span class="lineCov"> 101430 : ? longopts + lopt_idx : NULL;</span></a>
<a name="2246"><span class="lineNum"> 2246 </span> :<span class="lineCov"> 101430 : lopt_idx = -1;</span></a>
<a name="2247"><span class="lineNum"> 2247 </span> : : </a>
<a name="2248"><span class="lineNum"> 2248 </span> [<span class="branchCov" title="Branch 0 was taken 3634 times"> + </span><span class="branchCov" title="Branch 1 was taken 2 times"> + </span><span class="branchCov" title="Branch 2 was taken 8 times"> + </span><span class="branchCov" title="Branch 3 was taken 111 times"> + </span> :<span class="lineCov"> 101430 : switch (c) {</span></a>
<span class="lineNum"> </span><span class="branchCov" title="Branch 4 was taken 7 times"> + </span><span class="branchCov" title="Branch 5 was taken 12 times"> + </span><span class="branchCov" title="Branch 6 was taken 35 times"> + </span><span class="branchCov" title="Branch 7 was taken 9 times"> + </span><span class="branchCov" title="Branch 8 was taken 36824 times"> + </span>
<span class="lineNum"> </span><span class="branchCov" title="Branch 9 was taken 9 times"> + </span><span class="branchCov" title="Branch 10 was taken 4963 times"> + </span><span class="branchCov" title="Branch 11 was taken 67 times"> + </span><span class="branchCov" title="Branch 12 was taken 8 times"> + </span><span class="branchCov" title="Branch 13 was taken 16 times"> + </span>
<span class="lineNum"> </span><span class="branchCov" title="Branch 14 was taken 4 times"> + </span><span class="branchCov" title="Branch 15 was taken 508 times"> + </span><span class="branchCov" title="Branch 16 was taken 2 times"> + </span><span class="branchCov" title="Branch 17 was taken 4 times"> + </span><span class="branchCov" title="Branch 18 was taken 17331 times"> + </span>
<span class="lineNum"> </span><span class="branchCov" title="Branch 19 was taken 12 times"> + </span><span class="branchCov" title="Branch 20 was taken 44 times"> + </span><span class="branchCov" title="Branch 21 was taken 5438 times"> + </span><span class="branchCov" title="Branch 22 was taken 25333 times"> + </span><span class="branchCov" title="Branch 23 was taken 19 times"> + </span>
<span class="lineNum"> </span><span class="branchCov" title="Branch 24 was taken 72 times"> + </span><span class="branchCov" title="Branch 25 was taken 83 times"> + </span><span class="branchCov" title="Branch 26 was taken 19 times"> + </span><span class="branchCov" title="Branch 27 was taken 51 times"> + </span><span class="branchCov" title="Branch 28 was taken 15 times"> + </span>
<span class="lineNum"> </span><span class="branchCov" title="Branch 29 was taken 20 times"> + </span><span class="branchCov" title="Branch 30 was taken 74 times"> + </span><span class="branchCov" title="Branch 31 was taken 2789 times"> + </span><span class="branchCov" title="Branch 32 was taken 1182 times"> + </span><span class="branchCov" title="Branch 33 was taken 34 times"> + </span>
<span class="lineNum"> </span><span class="branchCov" title="Branch 34 was taken 11 times"> + </span><span class="branchCov" title="Branch 35 was taken 13 times"> + </span><span class="branchCov" title="Branch 36 was taken 351 times"> + </span><span class="branchCov" title="Branch 37 was taken 113 times"> + </span><span class="branchCov" title="Branch 38 was taken 5 times"> + </span>
<span class="lineNum"> </span><span class="branchCov" title="Branch 39 was taken 6 times"> + </span><span class="branchCov" title="Branch 40 was taken 9 times"> + </span><span class="branchCov" title="Branch 41 was taken 5 times"> + </span><span class="branchCov" title="Branch 42 was taken 10 times"> + </span><span class="branchCov" title="Branch 43 was taken 65 times"> + </span>
<span class="lineNum"> </span><span class="branchCov" title="Branch 44 was taken 340 times"> + </span><span class="branchCov" title="Branch 45 was taken 127 times"> + </span><span class="branchCov" title="Branch 46 was taken 127 times"> + </span><span class="branchCov" title="Branch 47 was taken 127 times"> + </span><span class="branchCov" title="Branch 48 was taken 113 times"> + </span>
<span class="lineNum"> </span><span class="branchCov" title="Branch 49 was taken 4 times"> + </span><span class="branchCov" title="Branch 50 was taken 34 times"> + </span><span class="branchCov" title="Branch 51 was taken 34 times"> + </span><span class="branchCov" title="Branch 52 was taken 515 times"> + </span><span class="branchCov" title="Branch 53 was taken 528 times"> + </span>
<span class="lineNum"> </span><span class="branchCov" title="Branch 54 was taken 1 time"> + </span><span class="branchCov" title="Branch 55 was taken 27 times"> + </span><span class="branchCov" title="Branch 56 was taken 20 times"> + </span><span class="branchCov" title="Branch 57 was taken 102 times"> + </span><span class="branchNoCov" title="Branch 58 was not taken"> - </span>
<span class="lineNum"> </span> <span class="branchCov" title="Branch 59 was taken 4 times"> + </span>]
<a name="2249"><span class="lineNum"> 2249 </span> :<span class="lineCov"> 3634 : case 'a':</span></a>
<a name="2250"><span class="lineNum"> 2250 </span> :<span class="lineCov"> 3634 : acolumn = string_to_uint(optarg);</span></a>
<a name="2251"><span class="lineNum"> 2251 </span> [<span class="branchCov" title="Branch 0 was taken 1 time"> + </span><span class="branchCov" title="Branch 1 was taken 3633 times"> + </span>]:<span class="lineCov"> 3634 : if (acolumn < 0)</span></a>
<a name="2252"><span class="lineNum"> 2252 </span> :<span class="lineCov"> 1 : error_opt_arg(c, lopt, optarg);</span></a>
<a name="2253"><span class="lineNum"> 2253 </span> : : break;</a>
<a name="2254"><span class="lineNum"> 2254 </span> :<span class="lineCov"> 2 : case 'A':</span></a>
<a name="2255"><span class="lineNum"> 2255 </span> :<span class="lineCov"> 2 : open_append = true;</span></a>
<a name="2256"><span class="lineNum"> 2256 </span> :<span class="lineCov"> 2 : break;</span></a>
<a name="2257"><span class="lineNum"> 2257 </span> :<span class="lineCov"> 8 : case 'b':</span></a>
<a name="2258"><span class="lineNum"> 2258 </span> [<span class="branchCov" title="Branch 0 was taken 4 times"> + </span><span class="branchCov" title="Branch 1 was taken 4 times"> + </span>]:<span class="lineCov"> 8 : if (strcmp(optarg, "execve") != 0)</span></a>
<a name="2259"><span class="lineNum"> 2259 </span> :<span class="lineCov"> 4 : error_msg_and_die("Syscall '%s' for -b isn't supported",</span></a>
<a name="2260"><span class="lineNum"> 2260 </span> : : optarg);</a>
<a name="2261"><span class="lineNum"> 2261 </span> :<span class="lineCov"> 4 : detach_on_execve = 1;</span></a>
<a name="2262"><span class="lineNum"> 2262 </span> :<span class="lineCov"> 4 : break;</span></a>
<a name="2263"><span class="lineNum"> 2263 </span> :<span class="lineCov"> 111 : case 'c':</span></a>
<a name="2264"><span class="lineNum"> 2264 </span> [<span class="branchCov" title="Branch 0 was taken 2 times"> + </span><span class="branchCov" title="Branch 1 was taken 109 times"> + </span>]:<span class="lineCov"> 111 : if (cflag == CFLAG_BOTH) {</span></a>
<a name="2265"><span class="lineNum"> 2265 </span> :<span class="lineCov"> 2 : error_msg_and_help("-c/--summary-only and "</span></a>
<a name="2266"><span class="lineNum"> 2266 </span> : : "-C/--summary are mutually "</a>
<a name="2267"><span class="lineNum"> 2267 </span> : : "exclusive");</a>
<a name="2268"><span class="lineNum"> 2268 </span> : : }</a>
<a name="2269"><span class="lineNum"> 2269 </span> :<span class="lineCov"> 109 : cflag = CFLAG_ONLY_STATS;</span></a>
<a name="2270"><span class="lineNum"> 2270 </span> :<span class="lineCov"> 109 : break;</span></a>
<a name="2271"><span class="lineNum"> 2271 </span> :<span class="lineCov"> 7 : case 'C':</span></a>
<a name="2272"><span class="lineNum"> 2272 </span> [<span class="branchCov" title="Branch 0 was taken 2 times"> + </span><span class="branchCov" title="Branch 1 was taken 5 times"> + </span>]:<span class="lineCov"> 7 : if (cflag == CFLAG_ONLY_STATS) {</span></a>
<a name="2273"><span class="lineNum"> 2273 </span> :<span class="lineCov"> 2 : error_msg_and_help("-c/--summary-only and "</span></a>
<a name="2274"><span class="lineNum"> 2274 </span> : : "-C/--summary are mutually "</a>
<a name="2275"><span class="lineNum"> 2275 </span> : : "exclusive");</a>
<a name="2276"><span class="lineNum"> 2276 </span> : : }</a>
<a name="2277"><span class="lineNum"> 2277 </span> :<span class="lineCov"> 5 : cflag = CFLAG_BOTH;</span></a>
<a name="2278"><span class="lineNum"> 2278 </span> :<span class="lineCov"> 5 : break;</span></a>
<a name="2279"><span class="lineNum"> 2279 </span> :<span class="lineCov"> 12 : case 'd':</span></a>
<a name="2280"><span class="lineNum"> 2280 </span> :<span class="lineCov"> 12 : debug_flag = 1;</span></a>
<a name="2281"><span class="lineNum"> 2281 </span> :<span class="lineCov"> 12 : break;</span></a>
<a name="2282"><span class="lineNum"> 2282 </span> :<span class="lineCov"> 35 : case 'D':</span></a>
<a name="2283"><span class="lineNum"> 2283 </span> :<span class="lineCov"> 35 : daemonized_tracer++;</span></a>
<a name="2284"><span class="lineNum"> 2284 </span> :<span class="lineCov"> 35 : break;</span></a>
<a name="2285"><span class="lineNum"> 2285 </span> :<span class="lineCov"> 9 : case GETOPT_DAEMONIZE:</span></a>
<a name="2286"><span class="lineNum"> 2286 </span> :<span class="lineCov"> 18 : daemonized_tracer_long =</span></a>
<a name="2287"><span class="lineNum"> 2287 </span> :<span class="lineCov"> 9 : find_arg_val(optarg, daemonize_str,</span></a>
<a name="2288"><span class="lineNum"> 2288 </span> : : DAEMONIZE_GRANDCHILD,</a>
<a name="2289"><span class="lineNum"> 2289 </span> : : DAEMONIZE_NONE);</a>
<a name="2290"><span class="lineNum"> 2290 </span> [<span class="branchCov" title="Branch 0 was taken 1 time"> + </span><span class="branchCov" title="Branch 1 was taken 8 times"> + </span>]:<span class="lineCov"> 9 : if (daemonized_tracer_long <= DAEMONIZE_NONE)</span></a>
<a name="2291"><span class="lineNum"> 2291 </span> :<span class="lineCov"> 1 : error_opt_arg(c, lopt, optarg);</span></a>
<a name="2292"><span class="lineNum"> 2292 </span> : : break;</a>
<a name="2293"><span class="lineNum"> 2293 </span> :<span class="lineCov"> 36824 : case 'e':</span></a>
<a name="2294"><span class="lineNum"> 2294 </span> :<span class="lineCov"> 36824 : qualify(optarg);</span></a>
<a name="2295"><span class="lineNum"> 2295 </span> :<span class="lineCov"> 36824 : break;</span></a>
<a name="2296"><span class="lineNum"> 2296 </span> :<span class="lineCov"> 9 : case 'E':</span></a>
<a name="2297"><span class="lineNum"> 2297 </span> [<span class="branchCov" title="Branch 0 was taken 5 times"> + </span><span class="branchCov" title="Branch 1 was taken 4 times"> + </span>]:<span class="lineCov"> 9 : if (env_change_count >= env_change_size)</span></a>
<a name="2298"><span class="lineNum"> 2298 </span> :<span class="lineCov"> 5 : env_changes = xgrowarray(env_changes,</span></a>
<a name="2299"><span class="lineNum"> 2299 </span> : : &env_change_size,</a>
<a name="2300"><span class="lineNum"> 2300 </span> : : sizeof(*env_changes));</a>
<a name="2301"><span class="lineNum"> 2301 </span> : : </a>
<a name="2302"><span class="lineNum"> 2302 </span> :<span class="lineCov"> 9 : env_changes[env_change_count++] = optarg;</span></a>
<a name="2303"><span class="lineNum"> 2303 </span> :<span class="lineCov"> 9 : break;</span></a>
<a name="2304"><span class="lineNum"> 2304 </span> :<span class="lineCov"> 4963 : case 'f':</span></a>
<a name="2305"><span class="lineNum"> 2305 </span> :<span class="lineCov"> 4963 : followfork_short++;</span></a>
<a name="2306"><span class="lineNum"> 2306 </span> :<span class="lineCov"> 4963 : break;</span></a>
<a name="2307"><span class="lineNum"> 2307 </span> :<span class="lineCov"> 67 : case GETOPT_FOLLOWFORKS:</span></a>
<a name="2308"><span class="lineNum"> 2308 </span> :<span class="lineCov"> 67 : followfork = true;</span></a>
<a name="2309"><span class="lineNum"> 2309 </span> :<span class="lineCov"> 67 : break;</span></a>
<a name="2310"><span class="lineNum"> 2310 </span> :<span class="lineCov"> 8 : case GETOPT_OUTPUT_SEPARATELY:</span></a>
<a name="2311"><span class="lineNum"> 2311 </span> :<span class="lineCov"> 8 : output_separately = true;</span></a>
<a name="2312"><span class="lineNum"> 2312 </span> :<span class="lineCov"> 8 : break;</span></a>
<a name="2313"><span class="lineNum"> 2313 </span> : : case 'F':</a>
<a name="2314"><span class="lineNum"> 2314 </span> : : optF = 1;</a>
<a name="2315"><span class="lineNum"> 2315 </span> : : break;</a>
<a name="2316"><span class="lineNum"> 2316 </span> :<span class="lineCov"> 16 : case 'h':</span></a>
<a name="2317"><span class="lineNum"> 2317 </span> :<span class="lineCov"> 16 : usage();</span></a>
<a name="2318"><span class="lineNum"> 2318 </span> : : break;</a>
<a name="2319"><span class="lineNum"> 2319 </span> :<span class="lineCov"> 4 : case 'i':</span></a>
<a name="2320"><span class="lineNum"> 2320 </span> :<span class="lineCov"> 4 : iflag = 1;</span></a>
<a name="2321"><span class="lineNum"> 2321 </span> :<span class="lineCov"> 4 : break;</span></a>
<a name="2322"><span class="lineNum"> 2322 </span> :<span class="lineCov"> 508 : case 'I':</span></a>
<a name="2323"><span class="lineNum"> 2323 </span> :<span class="lineCov"> 508 : opt_intr = parse_interruptible_arg(optarg);</span></a>
<a name="2324"><span class="lineNum"> 2324 </span> [<span class="branchCov" title="Branch 0 was taken 11 times"> + </span><span class="branchCov" title="Branch 1 was taken 497 times"> + </span>]:<span class="lineCov"> 508 : if (opt_intr <= 0)</span></a>
<a name="2325"><span class="lineNum"> 2325 </span> :<span class="lineCov"> 11 : error_opt_arg(c, lopt, optarg);</span></a>
<a name="2326"><span class="lineNum"> 2326 </span> : : break;</a>
<a name="2327"><span class="lineNum"> 2327 </span> :<span class="lineCov"> 2 : case 'k':</span></a>
<a name="2328"><span class="lineNum"> 2328 </span> : : #ifdef ENABLE_STACKTRACE</a>
<a name="2329"><span class="lineNum"> 2329 </span> : : stack_trace_enabled = true;</a>
<a name="2330"><span class="lineNum"> 2330 </span> : : #else</a>
<a name="2331"><span class="lineNum"> 2331 </span> :<span class="lineCov"> 2 : error_msg_and_die("Stack traces (-k/--stack-traces "</span></a>
<a name="2332"><span class="lineNum"> 2332 </span> : : "option) are not supported by this "</a>
<a name="2333"><span class="lineNum"> 2333 </span> : : "build of strace");</a>
<a name="2334"><span class="lineNum"> 2334 </span> : : #endif</a>
<a name="2335"><span class="lineNum"> 2335 </span> :<span class="lineCov"> 4 : break;</span></a>
<a name="2336"><span class="lineNum"> 2336 </span> :<span class="lineCov"> 4 : case 'n':</span></a>
<a name="2337"><span class="lineNum"> 2337 </span> :<span class="lineCov"> 4 : nflag = 1;</span></a>
<a name="2338"><span class="lineNum"> 2338 </span> :<span class="lineCov"> 4 : break;</span></a>
<a name="2339"><span class="lineNum"> 2339 </span> :<span class="lineCov"> 17331 : case 'o':</span></a>
<a name="2340"><span class="lineNum"> 2340 </span> :<span class="lineCov"> 17331 : outfname = optarg;</span></a>
<a name="2341"><span class="lineNum"> 2341 </span> :<span class="lineCov"> 17331 : break;</span></a>
<a name="2342"><span class="lineNum"> 2342 </span> :<span class="lineCov"> 12 : case 'O':</span></a>
<a name="2343"><span class="lineNum"> 2343 </span> [<span class="branchCov" title="Branch 0 was taken 1 time"> + </span><span class="branchCov" title="Branch 1 was taken 11 times"> + </span>]:<span class="lineCov"> 12 : if (set_overhead(optarg) < 0)</span></a>
<a name="2344"><span class="lineNum"> 2344 </span> :<span class="lineCov"> 1 : error_opt_arg(c, lopt, optarg);</span></a>
<a name="2345"><span class="lineNum"> 2345 </span> : : break;</a>
<a name="2346"><span class="lineNum"> 2346 </span> :<span class="lineCov"> 44 : case 'p':</span></a>
<a name="2347"><span class="lineNum"> 2347 </span> :<span class="lineCov"> 44 : process_opt_p_list(optarg);</span></a>
<a name="2348"><span class="lineNum"> 2348 </span> :<span class="lineCov"> 44 : break;</span></a>
<a name="2349"><span class="lineNum"> 2349 </span> :<span class="lineCov"> 5438 : case 'P':</span></a>
<a name="2350"><span class="lineNum"> 2350 </span> [<span class="branchCov" title="Branch 0 was taken 2735 times"> + </span><span class="branchCov" title="Branch 1 was taken 2703 times"> + </span>]:<span class="lineCov"> 5438 : if (pathtrace_count >= pathtrace_size)</span></a>
<a name="2351"><span class="lineNum"> 2351 </span> :<span class="lineCov"> 2735 : pathtrace_paths = xgrowarray(pathtrace_paths,</span></a>
<a name="2352"><span class="lineNum"> 2352 </span> : : &pathtrace_size,</a>
<a name="2353"><span class="lineNum"> 2353 </span> : : sizeof(pathtrace_paths[0]));</a>
<a name="2354"><span class="lineNum"> 2354 </span> : : </a>
<a name="2355"><span class="lineNum"> 2355 </span> :<span class="lineCov"> 5438 : pathtrace_paths[pathtrace_count++] = optarg;</span></a>
<a name="2356"><span class="lineNum"> 2356 </span> :<span class="lineCov"> 5438 : break;</span></a>
<a name="2357"><span class="lineNum"> 2357 </span> :<span class="lineCov"> 25333 : case 'q':</span></a>
<a name="2358"><span class="lineNum"> 2358 </span> :<span class="lineCov"> 25333 : qflag_short++;</span></a>
<a name="2359"><span class="lineNum"> 2359 </span> :<span class="lineCov"> 25333 : break;</span></a>
<a name="2360"><span class="lineNum"> 2360 </span> :<span class="lineCov"> 19 : case 'r':</span></a>
<a name="2361"><span class="lineNum"> 2361 </span> :<span class="lineCov"> 19 : rflag = 1;</span></a>
<a name="2362"><span class="lineNum"> 2362 </span> :<span class="lineCov"> 19 : rflag_width = 6;</span></a>
<a name="2363"><span class="lineNum"> 2363 </span> :<span class="lineCov"> 19 : rflag_scale = str2timescale_optarg(optarg,</span></a>
<a name="2364"><span class="lineNum"> 2364 </span> : : &rflag_width);</a>
<a name="2365"><span class="lineNum"> 2365 </span> [<span class="branchCov" title="Branch 0 was taken 2 times"> + </span><span class="branchCov" title="Branch 1 was taken 17 times"> + </span>]:<span class="lineCov"> 19 : if (rflag_scale < 0)</span></a>
<a name="2366"><span class="lineNum"> 2366 </span> :<span class="lineCov"> 2 : error_opt_arg(c, lopt, optarg);</span></a>
<a name="2367"><span class="lineNum"> 2367 </span> : : break;</a>
<a name="2368"><span class="lineNum"> 2368 </span> :<span class="lineCov"> 72 : case 's':</span></a>
<a name="2369"><span class="lineNum"> 2369 </span> :<span class="lineCov"> 72 : i = string_to_uint(optarg);</span></a>
<a name="2370"><span class="lineNum"> 2370 </span> [<span class="branchCov" title="Branch 0 was taken 4 times"> + </span><span class="branchCov" title="Branch 1 was taken 68 times"> + </span>]:<span class="lineCov"> 72 : if (i < 0 || (unsigned int) i > -1U / 4)</span></a>
<a name="2371"><span class="lineNum"> 2371 </span> :<span class="lineCov"> 4 : error_opt_arg(c, lopt, optarg);</span></a>
<a name="2372"><span class="lineNum"> 2372 </span> :<span class="lineCov"> 68 : max_strlen = i;</span></a>
<a name="2373"><span class="lineNum"> 2373 </span> :<span class="lineCov"> 68 : break;</span></a>
<a name="2374"><span class="lineNum"> 2374 </span> :<span class="lineCov"> 83 : case 'S':</span></a>
<a name="2375"><span class="lineNum"> 2375 </span> :<span class="lineCov"> 83 : set_sortby(optarg);</span></a>
<a name="2376"><span class="lineNum"> 2376 </span> :<span class="lineCov"> 83 : sortby_set = true;</span></a>
<a name="2377"><span class="lineNum"> 2377 </span> :<span class="lineCov"> 83 : break;</span></a>
<a name="2378"><span class="lineNum"> 2378 </span> :<span class="lineCov"> 19 : case 't':</span></a>
<a name="2379"><span class="lineNum"> 2379 </span> :<span class="lineCov"> 19 : tflag_short++;</span></a>
<a name="2380"><span class="lineNum"> 2380 </span> :<span class="lineCov"> 19 : break;</span></a>
<a name="2381"><span class="lineNum"> 2381 </span> :<span class="lineCov"> 51 : case GETOPT_TS:</span></a>
<a name="2382"><span class="lineNum"> 2382 </span> :<span class="lineCov"> 51 : tflag_long_set = true;</span></a>
<a name="2383"><span class="lineNum"> 2383 </span> [<span class="branchCov" title="Branch 0 was taken 6 times"> + </span><span class="branchCov" title="Branch 1 was taken 45 times"> + </span><span class="branchCov" title="Branch 2 was taken 4 times"> + </span><span class="branchCov" title="Branch 3 was taken 47 times"> + </span>]:<span class="lineCov"> 57 : if (parse_ts_arg(optarg ?: tflag_str))</span></a>
<a name="2384"><span class="lineNum"> 2384 </span> :<span class="lineCov"> 4 : error_opt_arg(c, lopt, optarg);</span></a>
<a name="2385"><span class="lineNum"> 2385 </span> : : break;</a>
<a name="2386"><span class="lineNum"> 2386 </span> :<span class="lineCov"> 15 : case 'T':</span></a>
<a name="2387"><span class="lineNum"> 2387 </span> :<span class="lineCov"> 15 : Tflag = 1;</span></a>
<a name="2388"><span class="lineNum"> 2388 </span> :<span class="lineCov"> 15 : Tflag_width = 6;</span></a>
<a name="2389"><span class="lineNum"> 2389 </span> :<span class="lineCov"> 15 : Tflag_scale = str2timescale_optarg(optarg,</span></a>
<a name="2390"><span class="lineNum"> 2390 </span> : : &Tflag_width);</a>
<a name="2391"><span class="lineNum"> 2391 </span> [<span class="branchCov" title="Branch 0 was taken 2 times"> + </span><span class="branchCov" title="Branch 1 was taken 13 times"> + </span>]:<span class="lineCov"> 15 : if (Tflag_scale < 0)</span></a>
<a name="2392"><span class="lineNum"> 2392 </span> :<span class="lineCov"> 2 : error_opt_arg(c, lopt, optarg);</span></a>
<a name="2393"><span class="lineNum"> 2393 </span> : : break;</a>
<a name="2394"><span class="lineNum"> 2394 </span> :<span class="lineCov"> 20 : case 'u':</span></a>
<a name="2395"><span class="lineNum"> 2395 </span> :<span class="lineCov"> 20 : username = optarg;</span></a>
<a name="2396"><span class="lineNum"> 2396 </span> :<span class="lineCov"> 20 : break;</span></a>
<a name="2397"><span class="lineNum"> 2397 </span> :<span class="lineCov"> 74 : case 'U':</span></a>
<a name="2398"><span class="lineNum"> 2398 </span> :<span class="lineCov"> 74 : columns_set = true;</span></a>
<a name="2399"><span class="lineNum"> 2399 </span> :<span class="lineCov"> 74 : set_count_summary_columns(optarg);</span></a>
<a name="2400"><span class="lineNum"> 2400 </span> :<span class="lineCov"> 74 : break;</span></a>
<a name="2401"><span class="lineNum"> 2401 </span> :<span class="lineCov"> 2789 : case 'v':</span></a>
<a name="2402"><span class="lineNum"> 2402 </span> :<span class="lineCov"> 2789 : qualify_abbrev("none");</span></a>
<a name="2403"><span class="lineNum"> 2403 </span> :<span class="lineCov"> 2789 : break;</span></a>
<a name="2404"><span class="lineNum"> 2404 </span> :<span class="lineCov"> 1182 : case 'V':</span></a>
<a name="2405"><span class="lineNum"> 2405 </span> :<span class="lineCov"> 1182 : print_version();</span></a>
<a name="2406"><span class="lineNum"> 2406 </span> :<span class="lineCov"> 1182 : exit(0);</span></a>
<a name="2407"><span class="lineNum"> 2407 </span> :<span class="lineCov"> 34 : break;</span></a>
<a name="2408"><span class="lineNum"> 2408 </span> :<span class="lineCov"> 34 : case 'w':</span></a>
<a name="2409"><span class="lineNum"> 2409 </span> :<span class="lineCov"> 34 : count_wallclock = 1;</span></a>
<a name="2410"><span class="lineNum"> 2410 </span> :<span class="lineCov"> 34 : break;</span></a>
<a name="2411"><span class="lineNum"> 2411 </span> :<span class="lineCov"> 11 : case 'x':</span></a>
<a name="2412"><span class="lineNum"> 2412 </span> :<span class="lineCov"> 11 : xflag = MIN(xflag + 1, HEXSTR_ALL);</span></a>
<a name="2413"><span class="lineNum"> 2413 </span> :<span class="lineCov"> 11 : break;</span></a>
<a name="2414"><span class="lineNum"> 2414 </span> :<span class="lineCov"> 13 : case GETOPT_HEX_STR:</span></a>
<a name="2415"><span class="lineNum"> 2415 </span> :<span class="lineCov"> 13 : xflag_long = find_arg_val(optarg, xflag_str,</span></a>
<a name="2416"><span class="lineNum"> 2416 </span> : : HEXSTR_ALL, -1);</a>
<a name="2417"><span class="lineNum"> 2417 </span> [<span class="branchCov" title="Branch 0 was taken 3 times"> + </span><span class="branchCov" title="Branch 1 was taken 10 times"> + </span>]:<span class="lineCov"> 13 : if (xflag_long < HEXSTR_NONE)</span></a>
<a name="2418"><span class="lineNum"> 2418 </span> :<span class="lineCov"> 3 : error_opt_arg(c, lopt, optarg);</span></a>
<a name="2419"><span class="lineNum"> 2419 </span> : : break;</a>
<a name="2420"><span class="lineNum"> 2420 </span> :<span class="lineCov"> 351 : case 'X':</span></a>
<a name="2421"><span class="lineNum"> 2421 </span> [<span class="branchCov" title="Branch 0 was taken 114 times"> + </span><span class="branchCov" title="Branch 1 was taken 237 times"> + </span>]:<span class="lineCov"> 351 : if (!strcmp(optarg, "raw"))</span></a>
<a name="2422"><span class="lineNum"> 2422 </span> :<span class="lineCov"> 114 : xlat_verbosity = XLAT_STYLE_RAW;</span></a>
<a name="2423"><span class="lineNum"> 2423 </span> [<span class="branchCov" title="Branch 0 was taken 114 times"> + </span><span class="branchCov" title="Branch 1 was taken 123 times"> + </span>]:<span class="lineCov"> 237 : else if (!strcmp(optarg, "abbrev"))</span></a>
<a name="2424"><span class="lineNum"> 2424 </span> :<span class="lineCov"> 114 : xlat_verbosity = XLAT_STYLE_ABBREV;</span></a>
<a name="2425"><span class="lineNum"> 2425 </span> [<span class="branchCov" title="Branch 0 was taken 117 times"> + </span><span class="branchCov" title="Branch 1 was taken 6 times"> + </span>]:<span class="lineCov"> 123 : else if (!strcmp(optarg, "verbose"))</span></a>
<a name="2426"><span class="lineNum"> 2426 </span> :<span class="lineCov"> 117 : xlat_verbosity = XLAT_STYLE_VERBOSE;</span></a>
<a name="2427"><span class="lineNum"> 2427 </span> : : else</a>
<a name="2428"><span class="lineNum"> 2428 </span> :<span class="lineCov"> 6 : error_opt_arg(c, lopt, optarg);</span></a>
<a name="2429"><span class="lineNum"> 2429 </span> : : break;</a>
<a name="2430"><span class="lineNum"> 2430 </span> :<span class="lineCov"> 113 : case 'y':</span></a>
<a name="2431"><span class="lineNum"> 2431 </span> :<span class="lineCov"> 113 : yflag_short++;</span></a>
<a name="2432"><span class="lineNum"> 2432 </span> :<span class="lineCov"> 113 : break;</span></a>
<a name="2433"><span class="lineNum"> 2433 </span> :<span class="lineCov"> 5 : case 'Y':</span></a>
<a name="2434"><span class="lineNum"> 2434 </span> :<span class="lineCov"> 5 : qualify_decode_pid("comm");</span></a>
<a name="2435"><span class="lineNum"> 2435 </span> :<span class="lineCov"> 5 : break;</span></a>
<a name="2436"><span class="lineNum"> 2436 </span> :<span class="lineCov"> 6 : case GETOPT_PIDNS_TRANSLATION:</span></a>
<a name="2437"><span class="lineNum"> 2437 </span> :<span class="lineCov"> 6 : qualify_decode_pid("pidns");</span></a>
<a name="2438"><span class="lineNum"> 2438 </span> :<span class="lineCov"> 6 : break;</span></a>
<a name="2439"><span class="lineNum"> 2439 </span> :<span class="lineCov"> 9 : case 'z':</span></a>
<a name="2440"><span class="lineNum"> 2440 </span> :<span class="lineCov"> 9 : clear_number_set_array(status_set, 1);</span></a>
<a name="2441"><span class="lineNum"> 2441 </span> :<span class="lineCov"> 9 : add_number_to_set(STATUS_SUCCESSFUL, status_set);</span></a>
<a name="2442"><span class="lineNum"> 2442 </span> :<span class="lineCov"> 9 : zflags++;</span></a>
<a name="2443"><span class="lineNum"> 2443 </span> :<span class="lineCov"> 9 : break;</span></a>
<a name="2444"><span class="lineNum"> 2444 </span> :<span class="lineCov"> 5 : case 'Z':</span></a>
<a name="2445"><span class="lineNum"> 2445 </span> :<span class="lineCov"> 5 : clear_number_set_array(status_set, 1);</span></a>
<a name="2446"><span class="lineNum"> 2446 </span> :<span class="lineCov"> 5 : add_number_to_set(STATUS_FAILED, status_set);</span></a>
<a name="2447"><span class="lineNum"> 2447 </span> :<span class="lineCov"> 5 : zflags++;</span></a>
<a name="2448"><span class="lineNum"> 2448 </span> :<span class="lineCov"> 5 : break;</span></a>
<a name="2449"><span class="lineNum"> 2449 </span> :<span class="lineCov"> 10 : case GETOPT_SECCOMP:</span></a>
<a name="2450"><span class="lineNum"> 2450 </span> :<span class="lineCov"> 10 : seccomp_filtering = true;</span></a>
<a name="2451"><span class="lineNum"> 2451 </span> :<span class="lineCov"> 10 : break;</span></a>
<a name="2452"><span class="lineNum"> 2452 </span> : : #ifdef ENABLE_SECONTEXT</a>
<a name="2453"><span class="lineNum"> 2453 </span> :<span class="lineCov"> 65 : case GETOPT_QUAL_SECONTEXT:</span></a>
<a name="2454"><span class="lineNum"> 2454 </span> [<span class="branchCov" title="Branch 0 was taken 50 times"> + </span><span class="branchCov" title="Branch 1 was taken 15 times"> + </span>]:<span class="lineCov"> 65 : qualify_secontext(optarg ? optarg : secontext_qual);</span></a>
<a name="2455"><span class="lineNum"> 2455 </span> :<span class="lineCov"> 65 : break;</span></a>
<a name="2456"><span class="lineNum"> 2456 </span> : : #endif</a>
<a name="2457"><span class="lineNum"> 2457 </span> :<span class="lineCov"> 340 : case GETOPT_QUAL_TRACE:</span></a>
<a name="2458"><span class="lineNum"> 2458 </span> :<span class="lineCov"> 340 : qualify_trace(optarg);</span></a>
<a name="2459"><span class="lineNum"> 2459 </span> :<span class="lineCov"> 340 : break;</span></a>
<a name="2460"><span class="lineNum"> 2460 </span> :<span class="lineCov"> 127 : case GETOPT_QUAL_ABBREV:</span></a>
<a name="2461"><span class="lineNum"> 2461 </span> :<span class="lineCov"> 127 : qualify_abbrev(optarg);</span></a>
<a name="2462"><span class="lineNum"> 2462 </span> :<span class="lineCov"> 127 : break;</span></a>
<a name="2463"><span class="lineNum"> 2463 </span> :<span class="lineCov"> 127 : case GETOPT_QUAL_VERBOSE:</span></a>
<a name="2464"><span class="lineNum"> 2464 </span> :<span class="lineCov"> 127 : qualify_verbose(optarg);</span></a>
<a name="2465"><span class="lineNum"> 2465 </span> :<span class="lineCov"> 127 : break;</span></a>
<a name="2466"><span class="lineNum"> 2466 </span> :<span class="lineCov"> 127 : case GETOPT_QUAL_RAW:</span></a>
<a name="2467"><span class="lineNum"> 2467 </span> :<span class="lineCov"> 127 : qualify_raw(optarg);</span></a>
<a name="2468"><span class="lineNum"> 2468 </span> :<span class="lineCov"> 127 : break;</span></a>
<a name="2469"><span class="lineNum"> 2469 </span> :<span class="lineCov"> 113 : case GETOPT_QUAL_SIGNAL:</span></a>
<a name="2470"><span class="lineNum"> 2470 </span> :<span class="lineCov"> 113 : qualify_signals(optarg);</span></a>
<a name="2471"><span class="lineNum"> 2471 </span> :<span class="lineCov"> 113 : break;</span></a>
<a name="2472"><span class="lineNum"> 2472 </span> :<span class="lineCov"> 4 : case GETOPT_QUAL_STATUS:</span></a>
<a name="2473"><span class="lineNum"> 2473 </span> :<span class="lineCov"> 4 : qualify_status(optarg);</span></a>
<a name="2474"><span class="lineNum"> 2474 </span> :<span class="lineCov"> 4 : break;</span></a>
<a name="2475"><span class="lineNum"> 2475 </span> :<span class="lineCov"> 34 : case GETOPT_QUAL_READ:</span></a>
<a name="2476"><span class="lineNum"> 2476 </span> :<span class="lineCov"> 34 : qualify_read(optarg);</span></a>
<a name="2477"><span class="lineNum"> 2477 </span> :<span class="lineCov"> 34 : break;</span></a>
<a name="2478"><span class="lineNum"> 2478 </span> :<span class="lineCov"> 34 : case GETOPT_QUAL_WRITE:</span></a>
<a name="2479"><span class="lineNum"> 2479 </span> :<span class="lineCov"> 34 : qualify_write(optarg);</span></a>
<a name="2480"><span class="lineNum"> 2480 </span> :<span class="lineCov"> 34 : break;</span></a>
<a name="2481"><span class="lineNum"> 2481 </span> :<span class="lineCov"> 515 : case GETOPT_QUAL_FAULT:</span></a>
<a name="2482"><span class="lineNum"> 2482 </span> :<span class="lineCov"> 515 : qualify_fault(optarg);</span></a>
<a name="2483"><span class="lineNum"> 2483 </span> :<span class="lineCov"> 515 : break;</span></a>
<a name="2484"><span class="lineNum"> 2484 </span> :<span class="lineCov"> 528 : case GETOPT_QUAL_INJECT:</span></a>
<a name="2485"><span class="lineNum"> 2485 </span> :<span class="lineCov"> 528 : qualify_inject(optarg);</span></a>
<a name="2486"><span class="lineNum"> 2486 </span> :<span class="lineCov"> 528 : break;</span></a>
<a name="2487"><span class="lineNum"> 2487 </span> :<span class="lineCov"> 1 : case GETOPT_QUAL_KVM:</span></a>
<a name="2488"><span class="lineNum"> 2488 </span> :<span class="lineCov"> 1 : qualify_kvm(optarg);</span></a>
<a name="2489"><span class="lineNum"> 2489 </span> :<span class="lineCov"> 1 : break;</span></a>
<a name="2490"><span class="lineNum"> 2490 </span> :<span class="lineCov"> 27 : case GETOPT_QUAL_QUIET:</span></a>
<a name="2491"><span class="lineNum"> 2491 </span> [<span class="branchCov" title="Branch 0 was taken 2 times"> + </span><span class="branchCov" title="Branch 1 was taken 25 times"> + </span>]:<span class="lineCov"> 27 : qualify_quiet(optarg ?: qflag_qual);</span></a>
<a name="2492"><span class="lineNum"> 2492 </span> :<span class="lineCov"> 27 : break;</span></a>
<a name="2493"><span class="lineNum"> 2493 </span> :<span class="lineCov"> 20 : case GETOPT_QUAL_DECODE_FD:</span></a>
<a name="2494"><span class="lineNum"> 2494 </span> [<span class="branchCov" title="Branch 0 was taken 3 times"> + </span><span class="branchCov" title="Branch 1 was taken 17 times"> + </span>]:<span class="lineCov"> 20 : qualify_decode_fd(optarg ?: yflag_qual);</span></a>
<a name="2495"><span class="lineNum"> 2495 </span> :<span class="lineCov"> 20 : break;</span></a>
<a name="2496"><span class="lineNum"> 2496 </span> :<span class="lineCov"> 102 : case GETOPT_QUAL_DECODE_PID:</span></a>
<a name="2497"><span class="lineNum"> 2497 </span> :<span class="lineCov"> 102 : qualify_decode_pid(optarg);</span></a>
<a name="2498"><span class="lineNum"> 2498 </span> :<span class="lineCov"> 102 : break;</span></a>
<a name="2499"><span class="lineNum"> 2499 </span> :<span class="lineNoCov"> 0 : default:</span></a>
<a name="2500"><span class="lineNum"> 2500 </span> :<span class="lineNoCov"> 0 : error_msg_and_help(NULL);</span></a>
<a name="2501"><span class="lineNum"> 2501 </span> :<span class="lineCov"> 119036 : break;</span></a>
<a name="2502"><span class="lineNum"> 2502 </span> : : }</a>
<a name="2503"><span class="lineNum"> 2503 </span> : : }</a>
<a name="2504"><span class="lineNum"> 2504 </span> : : </a>
<a name="2505"><span class="lineNum"> 2505 </span> :<span class="lineCov"> 17606 : argv += optind;</span></a>
<a name="2506"><span class="lineNum"> 2506 </span> :<span class="lineCov"> 17606 : argc -= optind;</span></a>
<a name="2507"><span class="lineNum"> 2507 </span> : : </a>
<a name="2508"><span class="lineNum"> 2508 </span> [<span class="branchCov" title="Branch 0 was taken 17605 times"> + </span><span class="branchCov" title="Branch 1 was taken 1 time"> + </span><span class="branchCov" title="Branch 2 was taken 17570 times"> + </span><span class="branchCov" title="Branch 3 was taken 35 times"> + </span> :<span class="lineCov"> 17606 : if (argc < 0 || (!nprocs && !argc)) {</span></a>
<span class="lineNum"> </span> <span class="branchCov" title="Branch 4 was taken 193 times"> + </span><span class="branchCov" title="Branch 5 was taken 17377 times"> + </span>]
<a name="2509"><span class="lineNum"> 2509 </span> :<span class="lineCov"> 194 : error_msg_and_help("must have PROG [ARGS] or -p PID");</span></a>
<a name="2510"><span class="lineNum"> 2510 </span> : : }</a>
<a name="2511"><span class="lineNum"> 2511 </span> : : </a>
<a name="2512"><span class="lineNum"> 2512 </span> [<span class="branchCov" title="Branch 0 was taken 8 times"> + </span><span class="branchCov" title="Branch 1 was taken 17404 times"> + </span>]:<span class="lineCov"> 17412 : if (daemonized_tracer_long) {</span></a>
<a name="2513"><span class="lineNum"> 2513 </span> [<span class="branchCov" title="Branch 0 was taken 3 times"> + </span><span class="branchCov" title="Branch 1 was taken 5 times"> + </span>]:<span class="lineCov"> 8 : if (daemonized_tracer) {</span></a>
<a name="2514"><span class="lineNum"> 2514 </span> :<span class="lineCov"> 3 : error_msg_and_die("-D and --daemonize cannot"</span></a>
<a name="2515"><span class="lineNum"> 2515 </span> : : " be provided simultaneously");</a>
<a name="2516"><span class="lineNum"> 2516 </span> : : } else {</a>
<a name="2517"><span class="lineNum"> 2517 </span> :<span class="lineCov"> 5 : daemonized_tracer = daemonized_tracer_long;</span></a>
<a name="2518"><span class="lineNum"> 2518 </span> : : }</a>
<a name="2519"><span class="lineNum"> 2519 </span> : : }</a>
<a name="2520"><span class="lineNum"> 2520 </span> : : </a>
<a name="2521"><span class="lineNum"> 2521 </span> [<span class="branchCov" title="Branch 0 was taken 31 times"> + </span><span class="branchCov" title="Branch 1 was taken 17378 times"> + </span><span class="branchCov" title="Branch 2 was taken 9 times"> + </span><span class="branchCov" title="Branch 3 was taken 22 times"> + </span>]:<span class="lineCov"> 17409 : if (!argc && daemonized_tracer) {</span></a>
<a name="2522"><span class="lineNum"> 2522 </span> :<span class="lineCov"> 9 : error_msg_and_help("PROG [ARGS] must be specified with "</span></a>
<a name="2523"><span class="lineNum"> 2523 </span> : : "-D/--daemonize");</a>
<a name="2524"><span class="lineNum"> 2524 </span> : : }</a>
<a name="2525"><span class="lineNum"> 2525 </span> : : </a>
<a name="2526"><span class="lineNum"> 2526 </span> [<span class="branchCov" title="Branch 0 was taken 1 time"> + </span><span class="branchCov" title="Branch 1 was taken 17399 times"> + </span>]:<span class="lineCov"> 17400 : if (daemonized_tracer > (unsigned int) MAX_DAEMONIZE_OPTS)</span></a>
<a name="2527"><span class="lineNum"> 2527 </span> :<span class="lineCov"> 1 : error_msg_and_help("Too many -D's (%u), maximum supported -D "</span></a>
<a name="2528"><span class="lineNum"> 2528 </span> : : "count is %d",</a>
<a name="2529"><span class="lineNum"> 2529 </span> : : daemonized_tracer, MAX_DAEMONIZE_OPTS);</a>
<a name="2530"><span class="lineNum"> 2530 </span> : : </a>
<a name="2531"><span class="lineNum"> 2531 </span> [<span class="branchCov" title="Branch 0 was taken 11 times"> + </span><span class="branchCov" title="Branch 1 was taken 17388 times"> + </span>]:<span class="lineCov"> 17399 : if (tflag_short) {</span></a>
<a name="2532"><span class="lineNum"> 2532 </span> [<span class="branchCov" title="Branch 0 was taken 4 times"> + </span><span class="branchCov" title="Branch 1 was taken 7 times"> + </span>]:<span class="lineCov"> 11 : if (tflag_long_set) {</span></a>
<a name="2533"><span class="lineNum"> 2533 </span> :<span class="lineCov"> 4 : error_msg_and_die("-t and --absolute-timestamps cannot"</span></a>
<a name="2534"><span class="lineNum"> 2534 </span> : : " be provided simultaneously");</a>
<a name="2535"><span class="lineNum"> 2535 </span> : : }</a>
<a name="2536"><span class="lineNum"> 2536 </span> : : </a>
<a name="2537"><span class="lineNum"> 2537 </span> [<span class="branchCov" title="Branch 0 was taken 4 times"> + </span><span class="branchCov" title="Branch 1 was taken 3 times"> + </span>]:<span class="lineCov"> 11 : parse_ts_arg(tflag_short == 1 ? tflag_str :</span></a>
<a name="2538"><span class="lineNum"> 2538 </span> [<span class="branchCov" title="Branch 0 was taken 1 time"> + </span><span class="branchCov" title="Branch 1 was taken 3 times"> + </span>]:<span class="lineCov"> 4 : tflag_short == 2 ? ttflag_str : tttflag_str);</span></a>
<a name="2539"><span class="lineNum"> 2539 </span> : : }</a>
<a name="2540"><span class="lineNum"> 2540 </span> : : </a>
<a name="2541"><span class="lineNum"> 2541 </span> [<span class="branchCov" title="Branch 0 was taken 7 times"> + </span><span class="branchCov" title="Branch 1 was taken 17388 times"> + </span>]:<span class="lineCov"> 17395 : if (xflag_long >= 0) {</span></a>
<a name="2542"><span class="lineNum"> 2542 </span> [<span class="branchCov" title="Branch 0 was taken 2 times"> + </span><span class="branchCov" title="Branch 1 was taken 5 times"> + </span>]:<span class="lineCov"> 7 : if (xflag) {</span></a>
<a name="2543"><span class="lineNum"> 2543 </span> :<span class="lineCov"> 2 : error_msg_and_die("-x and --strings-in-hex cannot"</span></a>
<a name="2544"><span class="lineNum"> 2544 </span> : : " be provided simultaneously");</a>
<a name="2545"><span class="lineNum"> 2545 </span> : : } else {</a>
<a name="2546"><span class="lineNum"> 2546 </span> :<span class="lineCov"> 5 : xflag = xflag_long;</span></a>
<a name="2547"><span class="lineNum"> 2547 </span> : : }</a>
<a name="2548"><span class="lineNum"> 2548 </span> : : }</a>
<a name="2549"><span class="lineNum"> 2549 </span> : : </a>
<a name="2550"><span class="lineNum"> 2550 </span> [<span class="branchCov" title="Branch 0 was taken 99 times"> + </span><span class="branchCov" title="Branch 1 was taken 17294 times"> + </span>]:<span class="lineCov"> 17393 : if (yflag_short) {</span></a>
<a name="2551"><span class="lineNum"> 2551 </span> [<span class="branchCov" title="Branch 0 was taken 3 times"> + </span><span class="branchCov" title="Branch 1 was taken 96 times"> + </span>]:<span class="lineCov"> 99 : if (decode_fd_set_updated) {</span></a>
<a name="2552"><span class="lineNum"> 2552 </span> :<span class="lineCov"> 3 : error_msg_and_die("-y and --decode-fds cannot"</span></a>
<a name="2553"><span class="lineNum"> 2553 </span> : : " be provided simultaneously");</a>
<a name="2554"><span class="lineNum"> 2554 </span> : : }</a>
<a name="2555"><span class="lineNum"> 2555 </span> : : </a>
<a name="2556"><span class="lineNum"> 2556 </span> [<span class="branchCov" title="Branch 0 was taken 12 times"> + </span><span class="branchCov" title="Branch 1 was taken 84 times"> + </span>]:<span class="lineCov"> 108 : qualify_decode_fd(yflag_short == 1 ? yflag_qual : yyflag_qual);</span></a>
<a name="2557"><span class="lineNum"> 2557 </span> : : }</a>
<a name="2558"><span class="lineNum"> 2558 </span> : : </a>
<a name="2559"><span class="lineNum"> 2559 </span> [<span class="branchCov" title="Branch 0 was taken 3 times"> + </span><span class="branchCov" title="Branch 1 was taken 17387 times"> + </span>]:<span class="lineCov"> 17390 : if (is_number_in_set(DECODE_PID_COMM, decode_pid_set)) {</span></a>
<a name="2560"><span class="lineNum"> 2560 </span> : : /*</a>
<a name="2561"><span class="lineNum"> 2561 </span> : : * If --decode-pids=comm option comes after -p, comm fields</a>
<a name="2562"><span class="lineNum"> 2562 </span> : : * of tcbs are not filled though tcbs are initialized.</a>
<a name="2563"><span class="lineNum"> 2563 </span> : : * We must fill the fields here.</a>
<a name="2564"><span class="lineNum"> 2564 </span> : : */</a>
<a name="2565"><span class="lineNum"> 2565 </span> [<span class="branchCov" title="Branch 0 was taken 16 times"> + </span><span class="branchCov" title="Branch 1 was taken 3 times"> + </span>]:<span class="lineCov"> 19 : for (unsigned int i = 0; i < tcbtabsize; ++i) {</span></a>
<a name="2566"><span class="lineNum"> 2566 </span> :<span class="lineCov"> 16 : struct tcb *tcp = tcbtab[i];</span></a>
<a name="2567"><span class="lineNum"> 2567 </span> [<span class="branchCov" title="Branch 0 was taken 15 times"> + </span><span class="branchCov" title="Branch 1 was taken 1 time"> + </span>]:<span class="lineCov"> 16 : if (tcp->comm[0] == 0)</span></a>
<a name="2568"><span class="lineNum"> 2568 </span> :<span class="lineCov"> 15 : maybe_load_task_comm(tcp);</span></a>
<a name="2569"><span class="lineNum"> 2569 </span> : : }</a>
<a name="2570"><span class="lineNum"> 2570 </span> : : }</a>
<a name="2571"><span class="lineNum"> 2571 </span> : : </a>
<a name="2572"><span class="lineNum"> 2572 </span> [<span class="branchCov" title="Branch 0 was taken 10 times"> + </span><span class="branchCov" title="Branch 1 was taken 17380 times"> + </span><span class="branchCov" title="Branch 2 was taken 1 time"> + </span><span class="branchCov" title="Branch 3 was taken 9 times"> + </span>]:<span class="lineCov"> 17390 : if (seccomp_filtering && detach_on_execve) {</span></a>
<a name="2573"><span class="lineNum"> 2573 </span> :<span class="lineCov"> 1 : error_msg("--seccomp-bpf is not enabled because"</span></a>
<a name="2574"><span class="lineNum"> 2574 </span> : : " it is not compatible with -b");</a>
<a name="2575"><span class="lineNum"> 2575 </span> :<span class="lineCov"> 1 : seccomp_filtering = false;</span></a>
<a name="2576"><span class="lineNum"> 2576 </span> : : }</a>
<a name="2577"><span class="lineNum"> 2577 </span> : : </a>
<a name="2578"><span class="lineNum"> 2578 </span> [<span class="branchCov" title="Branch 0 was taken 2547 times"> + </span><span class="branchCov" title="Branch 1 was taken 14843 times"> + </span>]:<span class="lineCov"> 17390 : if (followfork_short) {</span></a>
<a name="2579"><span class="lineNum"> 2579 </span> [<span class="branchCov" title="Branch 0 was taken 1 time"> + </span><span class="branchCov" title="Branch 1 was taken 2546 times"> + </span>]:<span class="lineCov"> 2547 : if (followfork) {</span></a>
<a name="2580"><span class="lineNum"> 2580 </span> :<span class="lineCov"> 1 : error_msg_and_die("-f and --follow-forks cannot"</span></a>
<a name="2581"><span class="lineNum"> 2581 </span> : : " be provided simultaneously");</a>
<a name="2582"><span class="lineNum"> 2582 </span> [<span class="branchCov" title="Branch 0 was taken 2415 times"> + </span><span class="branchCov" title="Branch 1 was taken 131 times"> + </span><span class="branchCov" title="Branch 2 was taken 1 time"> + </span><span class="branchCov" title="Branch 3 was taken 2414 times"> + </span>]:<span class="lineCov"> 2546 : } else if (followfork_short >= 2 && output_separately) {</span></a>
<a name="2583"><span class="lineNum"> 2583 </span> :<span class="lineCov"> 1 : error_msg_and_die("-ff and --output-separately cannot"</span></a>
<a name="2584"><span class="lineNum"> 2584 </span> : : " be provided simultaneously");</a>
<a name="2585"><span class="lineNum"> 2585 </span> : : } else {</a>
<a name="2586"><span class="lineNum"> 2586 </span> :<span class="lineCov"> 2545 : followfork = true;</span></a>
<a name="2587"><span class="lineNum"> 2587 </span> :<span class="lineCov"> 2545 : output_separately = followfork_short >= 2;</span></a>
<a name="2588"><span class="lineNum"> 2588 </span> : : }</a>
<a name="2589"><span class="lineNum"> 2589 </span> : : }</a>
<a name="2590"><span class="lineNum"> 2590 </span> : : </a>
<a name="2591"><span class="lineNum"> 2591 </span> [<span class="branchCov" title="Branch 0 was taken 9 times"> + </span><span class="branchCov" title="Branch 1 was taken 17379 times"> + </span>]:<span class="lineCov"> 17388 : if (seccomp_filtering) {</span></a>
<a name="2592"><span class="lineNum"> 2592 </span> [<span class="branchCov" title="Branch 0 was taken 1 time"> + </span><span class="branchCov" title="Branch 1 was taken 8 times"> + </span><span class="branchNoCov" title="Branch 2 was not taken"> - </span><span class="branchCov" title="Branch 3 was taken 1 time"> + </span> :<span class="lineCov"> 9 : if (nprocs && (!argc || debug_flag))</span></a>
<span class="lineNum"> </span> <span class="branchNoCov" title="Branch 4 was not taken"> - </span><span class="branchNoCov" title="Branch 5 was not taken"> - </span>]
<a name="2593"><span class="lineNum"> 2593 </span> :<span class="lineCov"> 1 : error_msg("--seccomp-bpf is not enabled for processes"</span></a>
<a name="2594"><span class="lineNum"> 2594 </span> : : " attached with -p");</a>
<a name="2595"><span class="lineNum"> 2595 </span> [<span class="branchCov" title="Branch 0 was taken 1 time"> + </span><span class="branchCov" title="Branch 1 was taken 8 times"> + </span>]:<span class="lineCov"> 9 : if (!followfork) {</span></a>
<a name="2596"><span class="lineNum"> 2596 </span> :<span class="lineCov"> 1 : error_msg("--seccomp-bpf cannot be used without "</span></a>
<a name="2597"><span class="lineNum"> 2597 </span> : : "-f/--follow-forks, disabling");</a>
<a name="2598"><span class="lineNum"> 2598 </span> :<span class="lineCov"> 1 : seccomp_filtering = false;</span></a>
<a name="2599"><span class="lineNum"> 2599 </span> : : }</a>
<a name="2600"><span class="lineNum"> 2600 </span> : : }</a>
<a name="2601"><span class="lineNum"> 2601 </span> : : </a>
<a name="2602"><span class="lineNum"> 2602 </span> [<span class="branchCov" title="Branch 0 was taken 3 times"> + </span><span class="branchCov" title="Branch 1 was taken 17385 times"> + </span>]:<span class="lineCov"> 17388 : if (optF) {</span></a>
<a name="2603"><span class="lineNum"> 2603 </span> [<span class="branchCov" title="Branch 0 was taken 1 time"> + </span><span class="branchCov" title="Branch 1 was taken 2 times"> + </span>]:<span class="lineCov"> 3 : if (followfork) {</span></a>
<a name="2604"><span class="lineNum"> 2604 </span> :<span class="lineCov"> 1 : error_msg("deprecated option -F ignored");</span></a>
<a name="2605"><span class="lineNum"> 2605 </span> : : } else {</a>
<a name="2606"><span class="lineNum"> 2606 </span> :<span class="lineCov"> 2 : error_msg("option -F is deprecated, "</span></a>
<a name="2607"><span class="lineNum"> 2607 </span> : : "please use -f/--follow-forks instead");</a>
<a name="2608"><span class="lineNum"> 2608 </span> :<span class="lineCov"> 2 : followfork = true;</span></a>
<a name="2609"><span class="lineNum"> 2609 </span> : : }</a>
<a name="2610"><span class="lineNum"> 2610 </span> : : }</a>
<a name="2611"><span class="lineNum"> 2611 </span> : : </a>
<a name="2612"><span class="lineNum"> 2612 </span> [<span class="branchCov" title="Branch 0 was taken 2418 times"> + </span><span class="branchCov" title="Branch 1 was taken 14970 times"> + </span><span class="branchCov" title="Branch 2 was taken 4 times"> + </span><span class="branchCov" title="Branch 3 was taken 2414 times"> + </span>]:<span class="lineCov"> 17388 : if (output_separately && cflag) {</span></a>
<a name="2613"><span class="lineNum"> 2613 </span> :<span class="lineCov"> 4 : error_msg_and_help("(-c/--summary-only or -C/--summary) and"</span></a>
<a name="2614"><span class="lineNum"> 2614 </span> : : " -ff/--output-separately"</a>
<a name="2615"><span class="lineNum"> 2615 </span> : : " are mutually exclusive");</a>
<a name="2616"><span class="lineNum"> 2616 </span> : : }</a>
<a name="2617"><span class="lineNum"> 2617 </span> : : </a>
<a name="2618"><span class="lineNum"> 2618 </span> [<span class="branchCov" title="Branch 0 was taken 34 times"> + </span><span class="branchCov" title="Branch 1 was taken 17350 times"> + </span><span class="branchCov" title="Branch 2 was taken 7 times"> + </span><span class="branchCov" title="Branch 3 was taken 27 times"> + </span>]:<span class="lineCov"> 17384 : if (count_wallclock && !cflag) {</span></a>
<a name="2619"><span class="lineNum"> 2619 </span> :<span class="lineCov"> 7 : error_msg_and_help("-w/--summary-wall-clock must be given with"</span></a>
<a name="2620"><span class="lineNum"> 2620 </span> : : " (-c/--summary-only or -C/--summary)");</a>
<a name="2621"><span class="lineNum"> 2621 </span> : : }</a>
<a name="2622"><span class="lineNum"> 2622 </span> : : </a>
<a name="2623"><span class="lineNum"> 2623 </span> [<span class="branchCov" title="Branch 0 was taken 6 times"> + </span><span class="branchCov" title="Branch 1 was taken 17371 times"> + </span><span class="branchCov" title="Branch 2 was taken 2 times"> + </span><span class="branchCov" title="Branch 3 was taken 4 times"> + </span>]:<span class="lineCov"> 17377 : if (columns_set && !cflag) {</span></a>
<a name="2624"><span class="lineNum"> 2624 </span> :<span class="lineCov"> 2 : error_msg_and_help("-U/--summary-columns must be given with"</span></a>
<a name="2625"><span class="lineNum"> 2625 </span> : : " (-c/--summary-only or -C/--summary)");</a>
<a name="2626"><span class="lineNum"> 2626 </span> : : }</a>
<a name="2627"><span class="lineNum"> 2627 </span> : : </a>
<a name="2628"><span class="lineNum"> 2628 </span> [<span class="branchCov" title="Branch 0 was taken 17 times"> + </span><span class="branchCov" title="Branch 1 was taken 17358 times"> + </span><span class="branchCov" title="Branch 2 was taken 1 time"> + </span><span class="branchCov" title="Branch 3 was taken 16 times"> + </span>]:<span class="lineCov"> 17375 : if (sortby_set && !cflag) {</span></a>
<a name="2629"><span class="lineNum"> 2629 </span> :<span class="lineCov"> 1 : error_msg("-S/--summary-sort-by has no effect without"</span></a>
<a name="2630"><span class="lineNum"> 2630 </span> : : " (-c/--summary-only or -C/--summary)");</a>
<a name="2631"><span class="lineNum"> 2631 </span> : : }</a>
<a name="2632"><span class="lineNum"> 2632 </span> : : </a>
<a name="2633"><span class="lineNum"> 2633 </span> [<span class="branchCov" title="Branch 0 was taken 43 times"> + </span><span class="branchCov" title="Branch 1 was taken 17332 times"> + </span>]:<span class="lineCov"> 17375 : if (cflag == CFLAG_ONLY_STATS) {</span></a>
<a name="2634"><span class="lineNum"> 2634 </span> [<span class="branchCov" title="Branch 0 was taken 3 times"> + </span><span class="branchCov" title="Branch 1 was taken 40 times"> + </span>]:<span class="lineCov"> 43 : if (iflag)</span></a>
<a name="2635"><span class="lineNum"> 2635 </span> :<span class="lineCov"> 3 : error_msg("-i/--instruction-pointer has no effect "</span></a>
<a name="2636"><span class="lineNum"> 2636 </span> : : "with -c/--summary-only");</a>
<a name="2637"><span class="lineNum"> 2637 </span> :<span class="lineCov"> 43 : if (stack_trace_enabled)</span></a>
<a name="2638"><span class="lineNum"> 2638 </span> : : error_msg("-k/--stack-traces has no effect "</a>
<a name="2639"><span class="lineNum"> 2639 </span> : : "with -c/--summary-only");</a>
<a name="2640"><span class="lineNum"> 2640 </span> [<span class="branchCov" title="Branch 0 was taken 3 times"> + </span><span class="branchCov" title="Branch 1 was taken 40 times"> + </span>]:<span class="lineCov"> 43 : if (nflag)</span></a>
<a name="2641"><span class="lineNum"> 2641 </span> :<span class="lineCov"> 3 : error_msg("-n/--syscall-number has no effect "</span></a>
<a name="2642"><span class="lineNum"> 2642 </span> : : "with -c/--summary-only");</a>
<a name="2643"><span class="lineNum"> 2643 </span> [<span class="branchCov" title="Branch 0 was taken 2 times"> + </span><span class="branchCov" title="Branch 1 was taken 41 times"> + </span>]:<span class="lineCov"> 43 : if (rflag)</span></a>
<a name="2644"><span class="lineNum"> 2644 </span> :<span class="lineCov"> 2 : error_msg("-r/--relative-timestamps has no effect "</span></a>
<a name="2645"><span class="lineNum"> 2645 </span> : : "with -c/--summary-only");</a>
<a name="2646"><span class="lineNum"> 2646 </span> [<span class="branchCov" title="Branch 0 was taken 2 times"> + </span><span class="branchCov" title="Branch 1 was taken 41 times"> + </span>]:<span class="lineCov"> 43 : if (tflag_format)</span></a>
<a name="2647"><span class="lineNum"> 2647 </span> :<span class="lineCov"> 2 : error_msg("-t/--absolute-timestamps has no effect "</span></a>
<a name="2648"><span class="lineNum"> 2648 </span> : : "with -c/--summary-only");</a>
<a name="2649"><span class="lineNum"> 2649 </span> [<span class="branchCov" title="Branch 0 was taken 2 times"> + </span><span class="branchCov" title="Branch 1 was taken 41 times"> + </span>]:<span class="lineCov"> 43 : if (Tflag)</span></a>
<a name="2650"><span class="lineNum"> 2650 </span> :<span class="lineCov"> 2 : error_msg("-T/--syscall-times has no effect "</span></a>
<a name="2651"><span class="lineNum"> 2651 </span> : : "with -c/--summary-only");</a>
<a name="2652"><span class="lineNum"> 2652 </span> [<span class="branchCov" title="Branch 0 was taken 2 times"> + </span><span class="branchCov" title="Branch 1 was taken 41 times"> + </span>]:<span class="lineCov"> 43 : if (!number_set_array_is_empty(decode_fd_set, 0))</span></a>
<a name="2653"><span class="lineNum"> 2653 </span> :<span class="lineCov"> 2 : error_msg("-y/--decode-fds has no effect "</span></a>
<a name="2654"><span class="lineNum"> 2654 </span> : : "with -c/--summary-only");</a>
<a name="2655"><span class="lineNum"> 2655 </span> : : #ifdef ENABLE_SECONTEXT</a>
<a name="2656"><span class="lineNum"> 2656 </span> [<span class="branchCov" title="Branch 0 was taken 1 time"> + </span><span class="branchCov" title="Branch 1 was taken 42 times"> + </span>]:<span class="lineCov"> 43 : if (!number_set_array_is_empty(secontext_set, 0))</span></a>
<a name="2657"><span class="lineNum"> 2657 </span> :<span class="lineCov"> 1 : error_msg("--secontext has no effect with "</span></a>
<a name="2658"><span class="lineNum"> 2658 </span> : : "-c/--summary-only");</a>
<a name="2659"><span class="lineNum"> 2659 </span> : : #endif</a>
<a name="2660"><span class="lineNum"> 2660 </span> : : }</a>
<a name="2661"><span class="lineNum"> 2661 </span> : : </a>
<a name="2662"><span class="lineNum"> 2662 </span> [<span class="branchCov" title="Branch 0 was taken 50 times"> + </span><span class="branchCov" title="Branch 1 was taken 17325 times"> + </span>]:<span class="lineCov"> 17375 : if (!outfname) {</span></a>
<a name="2663"><span class="lineNum"> 2663 </span> [<span class="branchCov" title="Branch 0 was taken 4 times"> + </span><span class="branchCov" title="Branch 1 was taken 46 times"> + </span><span class="branchCov" title="Branch 2 was taken 2 times"> + </span><span class="branchCov" title="Branch 3 was taken 2 times"> + </span>]:<span class="lineCov"> 50 : if (output_separately && !followfork)</span></a>
<a name="2664"><span class="lineNum"> 2664 </span> :<span class="lineCov"> 2 : error_msg("--output-separately has no effect "</span></a>
<a name="2665"><span class="lineNum"> 2665 </span> : : "without -o/--output");</a>
<a name="2666"><span class="lineNum"> 2666 </span> [<span class="branchCov" title="Branch 0 was taken 2 times"> + </span><span class="branchCov" title="Branch 1 was taken 48 times"> + </span>]:<span class="lineCov"> 50 : if (open_append)</span></a>
<a name="2667"><span class="lineNum"> 2667 </span> :<span class="lineCov"> 2 : error_msg("-A/--output-append-mode has no effect "</span></a>
<a name="2668"><span class="lineNum"> 2668 </span> : : "without -o/--output");</a>
<a name="2669"><span class="lineNum"> 2669 </span> : : }</a>
<a name="2670"><span class="lineNum"> 2670 </span> : : </a>
<a name="2671"><span class="lineNum"> 2671 </span> : : #ifndef HAVE_OPEN_MEMSTREAM</a>
<a name="2672"><span class="lineNum"> 2672 </span> : : if (!is_complete_set(status_set, NUMBER_OF_STATUSES))</a>
<a name="2673"><span class="lineNum"> 2673 </span> : : error_msg_and_help("open_memstream is required to use -z, -Z, or -e status");</a>
<a name="2674"><span class="lineNum"> 2674 </span> : : #endif</a>
<a name="2675"><span class="lineNum"> 2675 </span> : : </a>
<a name="2676"><span class="lineNum"> 2676 </span> [<span class="branchCov" title="Branch 0 was taken 4 times"> + </span><span class="branchCov" title="Branch 1 was taken 17371 times"> + </span>]:<span class="lineCov"> 17375 : if (zflags > 1)</span></a>
<a name="2677"><span class="lineNum"> 2677 </span> :<span class="lineCov"> 4 : error_msg("Only the last of "</span></a>
<a name="2678"><span class="lineNum"> 2678 </span> : : "-z/--successful-only/-Z/--failed-only options will "</a>
<a name="2679"><span class="lineNum"> 2679 </span> : : "take effect. "</a>
<a name="2680"><span class="lineNum"> 2680 </span> : : "See status qualifier for more complex filters.");</a>
<a name="2681"><span class="lineNum"> 2681 </span> : : </a>
<a name="2682"><span class="lineNum"> 2682 </span> [<span class="branchCov" title="Branch 0 was taken 5432 times"> + </span><span class="branchCov" title="Branch 1 was taken 17375 times"> + </span>]:<span class="lineCov"> 22807 : for (size_t cnt = 0; cnt < pathtrace_count; ++cnt)</span></a>
<a name="2683"><span class="lineNum"> 2683 </span> :<span class="lineCov"> 5432 : pathtrace_select(pathtrace_paths[cnt]);</span></a>
<a name="2684"><span class="lineNum"> 2684 </span> :<span class="lineCov"> 17375 : free(pathtrace_paths);</span></a>
<a name="2685"><span class="lineNum"> 2685 </span> : : </a>
<a name="2686"><span class="lineNum"> 2686 </span> :<span class="lineCov"> 17375 : acolumn_spaces = xmalloc(acolumn + 1);</span></a>
<a name="2687"><span class="lineNum"> 2687 </span> :<span class="lineCov"> 17375 : memset(acolumn_spaces, ' ', acolumn);</span></a>
<a name="2688"><span class="lineNum"> 2688 </span> :<span class="lineCov"> 17375 : acolumn_spaces[acolumn] = '\0';</span></a>
<a name="2689"><span class="lineNum"> 2689 </span> : : </a>
<a name="2690"><span class="lineNum"> 2690 </span> :<span class="lineCov"> 17375 : set_sighandler(SIGCHLD, SIG_DFL, ¶ms_for_tracee.child_sa);</span></a>
<a name="2691"><span class="lineNum"> 2691 </span> : : </a>
<a name="2692"><span class="lineNum"> 2692 </span> : : #ifdef ENABLE_STACKTRACE</a>
<a name="2693"><span class="lineNum"> 2693 </span> : : if (stack_trace_enabled)</a>
<a name="2694"><span class="lineNum"> 2694 </span> : : unwind_init();</a>
<a name="2695"><span class="lineNum"> 2695 </span> : : #endif</a>
<a name="2696"><span class="lineNum"> 2696 </span> : : </a>
<a name="2697"><span class="lineNum"> 2697 </span> : : /* See if they want to run as another user. */</a>
<a name="2698"><span class="lineNum"> 2698 </span> [<span class="branchCov" title="Branch 0 was taken 20 times"> + </span><span class="branchCov" title="Branch 1 was taken 17355 times"> + </span>]:<span class="lineCov"> 17375 : if (username != NULL) {</span></a>
<a name="2699"><span class="lineNum"> 2699 </span> :<span class="lineCov"> 20 : struct passwd *pent;</span></a>
<a name="2700"><span class="lineNum"> 2700 </span> : : </a>
<a name="2701"><span class="lineNum"> 2701 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 20 times"> + </span><span class="branchNoCov" title="Branch 2 was not taken"> - </span><span class="branchNoCov" title="Branch 3 was not taken"> - </span>]:<span class="lineCov"> 20 : if (getuid() != 0 || geteuid() != 0) {</span></a>
<a name="2702"><span class="lineNum"> 2702 </span> :<span class="lineCov"> 20 : error_msg_and_die("You must be root to use "</span></a>
<a name="2703"><span class="lineNum"> 2703 </span> : : "the -u/--username option");</a>
<a name="2704"><span class="lineNum"> 2704 </span> : : }</a>
<a name="2705"><span class="lineNum"> 2705 </span> :<span class="lineNoCov"> 0 : pent = getpwnam(username);</span></a>
<a name="2706"><span class="lineNum"> 2706 </span> [<span class="branchNoExec" title="Branch 0 was not executed"> # </span><span class="branchNoExec" title="Branch 1 was not executed"> # </span>]:<span class="lineNoCov"> 0 : if (pent == NULL) {</span></a>
<a name="2707"><span class="lineNum"> 2707 </span> :<span class="lineNoCov"> 0 : error_msg_and_die("Cannot find user '%s'", username);</span></a>
<a name="2708"><span class="lineNum"> 2708 </span> : : }</a>
<a name="2709"><span class="lineNum"> 2709 </span> :<span class="lineNoCov"> 0 : run_uid = pent->pw_uid;</span></a>
<a name="2710"><span class="lineNum"> 2710 </span> :<span class="lineNoCov"> 0 : run_gid = pent->pw_gid;</span></a>
<a name="2711"><span class="lineNum"> 2711 </span> : : } else {</a>
<a name="2712"><span class="lineNum"> 2712 </span> :<span class="lineCov"> 17355 : run_uid = getuid();</span></a>
<a name="2713"><span class="lineNum"> 2713 </span> :<span class="lineCov"> 17355 : run_gid = getgid();</span></a>
<a name="2714"><span class="lineNum"> 2714 </span> : : }</a>
<a name="2715"><span class="lineNum"> 2715 </span> : : </a>
<a name="2716"><span class="lineNum"> 2716 </span> [<span class="branchCov" title="Branch 0 was taken 2601 times"> + </span><span class="branchCov" title="Branch 1 was taken 14754 times"> + </span>]:<span class="lineCov"> 17355 : if (followfork)</span></a>
<a name="2717"><span class="lineNum"> 2717 </span> :<span class="lineCov"> 2601 : ptrace_setoptions |= PTRACE_O_TRACECLONE |</span></a>
<a name="2718"><span class="lineNum"> 2718 </span> : : PTRACE_O_TRACEFORK |</a>
<a name="2719"><span class="lineNum"> 2719 </span> : : PTRACE_O_TRACEVFORK;</a>
<a name="2720"><span class="lineNum"> 2720 </span> : : </a>
<a name="2721"><span class="lineNum"> 2721 </span> [<span class="branchCov" title="Branch 0 was taken 7 times"> + </span><span class="branchCov" title="Branch 1 was taken 17348 times"> + </span>]:<span class="lineCov"> 17355 : if (seccomp_filtering)</span></a>
<a name="2722"><span class="lineNum"> 2722 </span> :<span class="lineCov"> 7 : check_seccomp_filter();</span></a>
<a name="2723"><span class="lineNum"> 2723 </span> [<span class="branchCov" title="Branch 0 was taken 7 times"> + </span><span class="branchCov" title="Branch 1 was taken 17348 times"> + </span>]:<span class="lineCov"> 17355 : if (seccomp_filtering)</span></a>
<a name="2724"><span class="lineNum"> 2724 </span> :<span class="lineCov"> 7 : ptrace_setoptions |= PTRACE_O_TRACESECCOMP;</span></a>
<a name="2725"><span class="lineNum"> 2725 </span> : : </a>
<a name="2726"><span class="lineNum"> 2726 </span> [<span class="branchCov" title="Branch 0 was taken 12 times"> + </span><span class="branchCov" title="Branch 1 was taken 17343 times"> + </span>]:<span class="lineCov"> 17355 : debug_msg("ptrace_setoptions = %#x", ptrace_setoptions);</span></a>
<a name="2727"><span class="lineNum"> 2727 </span> :<span class="lineCov"> 17355 : test_ptrace_seize();</span></a>
<a name="2728"><span class="lineNum"> 2728 </span> :<span class="lineCov"> 17355 : test_ptrace_get_syscall_info();</span></a>
<a name="2729"><span class="lineNum"> 2729 </span> : : </a>
<a name="2730"><span class="lineNum"> 2730 </span> : : /*</a>
<a name="2731"><span class="lineNum"> 2731 </span> : : * Is something weird with our stdin and/or stdout -</a>
<a name="2732"><span class="lineNum"> 2732 </span> : : * for example, may they be not open? In this case,</a>
<a name="2733"><span class="lineNum"> 2733 </span> : : * ensure that none of the future opens uses them.</a>
<a name="2734"><span class="lineNum"> 2734 </span> : : *</a>
<a name="2735"><span class="lineNum"> 2735 </span> : : * This was seen in the wild when /proc/sys/kernel/core_pattern</a>
<a name="2736"><span class="lineNum"> 2736 </span> : : * was set to "|/bin/strace -o/tmp/LOG PROG":</a>
<a name="2737"><span class="lineNum"> 2737 </span> : : * kernel runs coredump helper with fd#0 open but fd#1 closed (!),</a>
<a name="2738"><span class="lineNum"> 2738 </span> : : * therefore LOG gets opened to fd#1, and fd#1 is closed by</a>
<a name="2739"><span class="lineNum"> 2739 </span> : : * "don't hold up stdin/out open" code soon after.</a>
<a name="2740"><span class="lineNum"> 2740 </span> : : */</a>
<a name="2741"><span class="lineNum"> 2741 </span> :<span class="lineCov"> 17355 : ensure_standard_fds_opened();</span></a>
<a name="2742"><span class="lineNum"> 2742 </span> : : </a>
<a name="2743"><span class="lineNum"> 2743 </span> : : /* Check if they want to redirect the output. */</a>
<a name="2744"><span class="lineNum"> 2744 </span> [<span class="branchCov" title="Branch 0 was taken 17325 times"> + </span><span class="branchCov" title="Branch 1 was taken 30 times"> + </span>]:<span class="lineCov"> 17355 : if (outfname) {</span></a>
<a name="2745"><span class="lineNum"> 2745 </span> : : /* See if they want to pipe the output. */</a>
<a name="2746"><span class="lineNum"> 2746 </span> [<span class="branchCov" title="Branch 0 was taken 9 times"> + </span><span class="branchCov" title="Branch 1 was taken 17316 times"> + </span>]:<span class="lineCov"> 17325 : if (outfname[0] == '|' || outfname[0] == '!') {</span></a>
<a name="2747"><span class="lineNum"> 2747 </span> : : /*</a>
<a name="2748"><span class="lineNum"> 2748 </span> : : * We can't do the <outfname>.PID funny business</a>
<a name="2749"><span class="lineNum"> 2749 </span> : : * when using popen, so prohibit it.</a>
<a name="2750"><span class="lineNum"> 2750 </span> : : */</a>
<a name="2751"><span class="lineNum"> 2751 </span> [<span class="branchCov" title="Branch 0 was taken 4 times"> + </span><span class="branchCov" title="Branch 1 was taken 5 times"> + </span>]:<span class="lineCov"> 9 : if (output_separately)</span></a>
<a name="2752"><span class="lineNum"> 2752 </span> :<span class="lineCov"> 4 : error_msg_and_help("piping the output and "</span></a>
<a name="2753"><span class="lineNum"> 2753 </span> : : "-ff/--output-separately "</a>
<a name="2754"><span class="lineNum"> 2754 </span> : : "are mutually exclusive");</a>
<a name="2755"><span class="lineNum"> 2755 </span> :<span class="lineCov"> 5 : shared_log = strace_popen(outfname + 1);</span></a>
<a name="2756"><span class="lineNum"> 2756 </span> [<span class="branchCov" title="Branch 0 was taken 14910 times"> + </span><span class="branchCov" title="Branch 1 was taken 2406 times"> + </span>]:<span class="lineCov"> 17316 : } else if (!output_separately) {</span></a>
<a name="2757"><span class="lineNum"> 2757 </span> :<span class="lineCov"> 14910 : shared_log = strace_fopen(outfname);</span></a>
<a name="2758"><span class="lineNum"> 2758 </span> [<span class="branchCov" title="Branch 0 was taken 2 times"> + </span><span class="branchCov" title="Branch 1 was taken 2404 times"> + </span>]:<span class="lineCov"> 2406 : } else if (strlen(outfname) >= PATH_MAX - sizeof(int) * 3) {</span></a>
<a name="2759"><span class="lineNum"> 2759 </span> :<span class="lineCov"> 2 : errno = ENAMETOOLONG;</span></a>
<a name="2760"><span class="lineNum"> 2760 </span> :<span class="lineCov"> 2 : perror_msg_and_die("%s", outfname);</span></a>
<a name="2761"><span class="lineNum"> 2761 </span> : : }</a>
<a name="2762"><span class="lineNum"> 2762 </span> : : } else {</a>
<a name="2763"><span class="lineNum"> 2763 </span> : : /* -ff without -o FILE is the same as single -f */</a>
<a name="2764"><span class="lineNum"> 2764 </span> :<span class="lineCov"> 30 : output_separately = false;</span></a>
<a name="2765"><span class="lineNum"> 2765 </span> : : }</a>
<a name="2766"><span class="lineNum"> 2766 </span> : : </a>
<a name="2767"><span class="lineNum"> 2767 </span> [<span class="branchCov" title="Branch 0 was taken 17314 times"> + </span><span class="branchCov" title="Branch 1 was taken 30 times"> + </span><span class="branchCov" title="Branch 2 was taken 17314 times"> + </span><span class="branchNoCov" title="Branch 3 was not taken"> - </span> :<span class="lineCov"> 17344 : if (!outfname || outfname[0] == '|' || outfname[0] == '!') {</span></a>
<span class="lineNum"> </span> <span class="branchNoCov" title="Branch 4 was not taken"> - </span><span class="branchCov" title="Branch 5 was taken 17314 times"> + </span>]
<a name="2768"><span class="lineNum"> 2768 </span> :<span class="lineCov"> 30 : setvbuf(shared_log, NULL, _IOLBF, 0);</span></a>
<a name="2769"><span class="lineNum"> 2769 </span> : : }</a>
<a name="2770"><span class="lineNum"> 2770 </span> : : </a>
<a name="2771"><span class="lineNum"> 2771 </span> : : /*</a>
<a name="2772"><span class="lineNum"> 2772 </span> : : * argv[0] -pPID -oFILE Default interactive setting</a>
<a name="2773"><span class="lineNum"> 2773 </span> : : * yes * 0 INTR_WHILE_WAIT</a>
<a name="2774"><span class="lineNum"> 2774 </span> : : * no 1 0 INTR_WHILE_WAIT</a>
<a name="2775"><span class="lineNum"> 2775 </span> : : * yes * 1 INTR_NEVER</a>
<a name="2776"><span class="lineNum"> 2776 </span> : : * no 1 1 INTR_WHILE_WAIT</a>
<a name="2777"><span class="lineNum"> 2777 </span> : : */</a>
<a name="2778"><span class="lineNum"> 2778 </span> : : </a>
<a name="2779"><span class="lineNum"> 2779 </span> [<span class="branchCov" title="Branch 0 was taken 9 times"> + </span><span class="branchCov" title="Branch 1 was taken 17335 times"> + </span><span class="branchCov" title="Branch 2 was taken 6 times"> + </span><span class="branchCov" title="Branch 3 was taken 3 times"> + </span>]:<span class="lineCov"> 17344 : if (daemonized_tracer && !opt_intr)</span></a>
<a name="2780"><span class="lineNum"> 2780 </span> :<span class="lineCov"> 6 : opt_intr = INTR_BLOCK_TSTP_TOO;</span></a>
<a name="2781"><span class="lineNum"> 2781 </span> [<span class="branchCov" title="Branch 0 was taken 17314 times"> + </span><span class="branchCov" title="Branch 1 was taken 30 times"> + </span><span class="branchCov" title="Branch 2 was taken 17311 times"> + </span><span class="branchCov" title="Branch 3 was taken 3 times"> + </span>]:<span class="lineCov"> 17344 : if (outfname && argc) {</span></a>
<a name="2782"><span class="lineNum"> 2782 </span> [<span class="branchCov" title="Branch 0 was taken 16823 times"> + </span><span class="branchCov" title="Branch 1 was taken 488 times"> + </span>]:<span class="lineCov"> 17311 : if (!opt_intr)</span></a>
<a name="2783"><span class="lineNum"> 2783 </span> :<span class="lineCov"> 16823 : opt_intr = INTR_NEVER;</span></a>
<a name="2784"><span class="lineNum"> 2784 </span> [<span class="branchCov" title="Branch 0 was taken 4650 times"> + </span><span class="branchCov" title="Branch 1 was taken 12661 times"> + </span><span class="branchCov" title="Branch 2 was taken 4637 times"> + </span><span class="branchCov" title="Branch 3 was taken 13 times"> + </span>]:<span class="lineCov"> 17311 : if (!qflag_short && !quiet_set_updated)</span></a>
<a name="2785"><span class="lineNum"> 2785 </span> :<span class="lineCov"> 4637 : qflag_short = 1;</span></a>
<a name="2786"><span class="lineNum"> 2786 </span> : : }</a>
<a name="2787"><span class="lineNum"> 2787 </span> [<span class="branchCov" title="Branch 0 was taken 33 times"> + </span><span class="branchCov" title="Branch 1 was taken 17311 times"> + </span>]:<span class="lineCov"> 17344 : if (!opt_intr)</span></a>
<a name="2788"><span class="lineNum"> 2788 </span> :<span class="lineCov"> 33 : opt_intr = INTR_WHILE_WAIT;</span></a>
<a name="2789"><span class="lineNum"> 2789 </span> : : </a>
<a name="2790"><span class="lineNum"> 2790 </span> [<span class="branchCov" title="Branch 0 was taken 17304 times"> + </span><span class="branchCov" title="Branch 1 was taken 40 times"> + </span>]:<span class="lineCov"> 17344 : if (qflag_short) {</span></a>
<a name="2791"><span class="lineNum"> 2791 </span> [<span class="branchCov" title="Branch 0 was taken 4 times"> + </span><span class="branchCov" title="Branch 1 was taken 17300 times"> + </span>]:<span class="lineCov"> 17304 : if (quiet_set_updated) {</span></a>
<a name="2792"><span class="lineNum"> 2792 </span> :<span class="lineCov"> 4 : error_msg_and_die("-q and -e quiet/--quiet cannot"</span></a>
<a name="2793"><span class="lineNum"> 2793 </span> : : " be provided simultaneously");</a>
<a name="2794"><span class="lineNum"> 2794 </span> : : }</a>
<a name="2795"><span class="lineNum"> 2795 </span> : : </a>
<a name="2796"><span class="lineNum"> 2796 </span> [<span class="branchCov" title="Branch 0 was taken 12655 times"> + </span><span class="branchCov" title="Branch 1 was taken 4645 times"> + </span>]:<span class="lineCov"> 29955 : qualify_quiet(qflag_short == 1 ? qflag_qual :</span></a>
<a name="2797"><span class="lineNum"> 2797 </span> [<span class="branchCov" title="Branch 0 was taken 2 times"> + </span><span class="branchCov" title="Branch 1 was taken 12653 times"> + </span>]:<span class="lineCov"> 12655 : qflag_short == 2 ? qqflag_qual : qqqflag_qual);</span></a>
<a name="2798"><span class="lineNum"> 2798 </span> : : }</a>
<a name="2799"><span class="lineNum"> 2799 </span> : : </a>
<a name="2800"><span class="lineNum"> 2800 </span> : : /*</a>
<a name="2801"><span class="lineNum"> 2801 </span> : : * startup_child() must be called before the signal handlers get</a>
<a name="2802"><span class="lineNum"> 2802 </span> : : * installed below as they are inherited into the spawned process.</a>
<a name="2803"><span class="lineNum"> 2803 </span> : : * Also we do not need to be protected by them as during interruption</a>
<a name="2804"><span class="lineNum"> 2804 </span> : : * in the startup_child() mode we kill the spawned process anyway.</a>
<a name="2805"><span class="lineNum"> 2805 </span> : : */</a>
<a name="2806"><span class="lineNum"> 2806 </span> [<span class="branchCov" title="Branch 0 was taken 17333 times"> + </span><span class="branchCov" title="Branch 1 was taken 7 times"> + </span>]:<span class="lineCov"> 17340 : if (argc) {</span></a>
<a name="2807"><span class="lineNum"> 2807 </span> :<span class="lineCov"> 17333 : char **new_environ = make_env(environ, env_changes,</span></a>
<a name="2808"><span class="lineNum"> 2808 </span> : : env_change_count);</a>
<a name="2809"><span class="lineNum"> 2809 </span> :<span class="lineCov"> 17333 : free(env_changes);</span></a>
<a name="2810"><span class="lineNum"> 2810 </span> : : </a>
<a name="2811"><span class="lineNum"> 2811 </span> :<span class="lineCov"> 17333 : startup_child(argv, new_environ);</span></a>
<a name="2812"><span class="lineNum"> 2812 </span> : : </a>
<a name="2813"><span class="lineNum"> 2813 </span> : : /*</a>
<a name="2814"><span class="lineNum"> 2814 </span> : : * On a NOMMU system, new_environ can be freed only after exec</a>
<a name="2815"><span class="lineNum"> 2815 </span> : : * in child, so we leak it in that case, similar to pathname</a>
<a name="2816"><span class="lineNum"> 2816 </span> : : * in startup_child().</a>
<a name="2817"><span class="lineNum"> 2817 </span> : : */</a>
<a name="2818"><span class="lineNum"> 2818 </span> [<span class="branchCov" title="Branch 0 was taken 5 times"> + </span><span class="branchCov" title="Branch 1 was taken 17318 times"> + </span>]:<span class="lineCov"> 17323 : if (new_environ != environ && !NOMMU_SYSTEM)</span></a>
<a name="2819"><span class="lineNum"> 2819 </span> :<span class="lineCov"> 5 : free(new_environ);</span></a>
<a name="2820"><span class="lineNum"> 2820 </span> : : }</a>
<a name="2821"><span class="lineNum"> 2821 </span> : : </a>
<a name="2822"><span class="lineNum"> 2822 </span> :<span class="lineCov"> 17330 : set_sighandler(SIGTTOU, SIG_IGN, NULL);</span></a>
<a name="2823"><span class="lineNum"> 2823 </span> :<span class="lineCov"> 17330 : set_sighandler(SIGTTIN, SIG_IGN, NULL);</span></a>
<a name="2824"><span class="lineNum"> 2824 </span> [<span class="branchCov" title="Branch 0 was taken 17212 times"> + </span><span class="branchCov" title="Branch 1 was taken 118 times"> + </span>]:<span class="lineCov"> 17330 : if (opt_intr != INTR_ANYWHERE) {</span></a>
<a name="2825"><span class="lineNum"> 2825 </span> [<span class="branchCov" title="Branch 0 was taken 118 times"> + </span><span class="branchCov" title="Branch 1 was taken 17094 times"> + </span>]:<span class="lineCov"> 17212 : if (opt_intr == INTR_BLOCK_TSTP_TOO)</span></a>
<a name="2826"><span class="lineNum"> 2826 </span> :<span class="lineCov"> 118 : set_sighandler(SIGTSTP, SIG_IGN, NULL);</span></a>
<a name="2827"><span class="lineNum"> 2827 </span> : : /*</a>
<a name="2828"><span class="lineNum"> 2828 </span> : : * In interactive mode (if no -o OUTFILE, or -p PID is used),</a>
<a name="2829"><span class="lineNum"> 2829 </span> : : * fatal signals are handled asynchronously and acted</a>
<a name="2830"><span class="lineNum"> 2830 </span> : : * when waiting for process state changes.</a>
<a name="2831"><span class="lineNum"> 2831 </span> : : * In non-interactive mode these signals are ignored.</a>
<a name="2832"><span class="lineNum"> 2832 </span> : : */</a>
<a name="2833"><span class="lineNum"> 2833 </span> [<span class="branchCov" title="Branch 0 was taken 17059 times"> + </span><span class="branchCov" title="Branch 1 was taken 153 times"> + </span>]:<span class="lineCov"> 34271 : set_sighandler(SIGHUP, interactive ? interrupt : SIG_IGN, NULL);</span></a>
<a name="2834"><span class="lineNum"> 2834 </span> [<span class="branchCov" title="Branch 0 was taken 17059 times"> + </span><span class="branchCov" title="Branch 1 was taken 153 times"> + </span>]:<span class="lineCov"> 34271 : set_sighandler(SIGINT, interactive ? interrupt : SIG_IGN, NULL);</span></a>
<a name="2835"><span class="lineNum"> 2835 </span> [<span class="branchCov" title="Branch 0 was taken 17059 times"> + </span><span class="branchCov" title="Branch 1 was taken 153 times"> + </span>]:<span class="lineCov"> 34271 : set_sighandler(SIGQUIT, interactive ? interrupt : SIG_IGN, NULL);</span></a>
<a name="2836"><span class="lineNum"> 2836 </span> [<span class="branchCov" title="Branch 0 was taken 17059 times"> + </span><span class="branchCov" title="Branch 1 was taken 153 times"> + </span>]:<span class="lineCov"> 34271 : set_sighandler(SIGPIPE, interactive ? interrupt : SIG_IGN, NULL);</span></a>
<a name="2837"><span class="lineNum"> 2837 </span> [<span class="branchCov" title="Branch 0 was taken 17059 times"> + </span><span class="branchCov" title="Branch 1 was taken 153 times"> + </span>]:<span class="lineCov"> 34271 : set_sighandler(SIGTERM, interactive ? interrupt : SIG_IGN, NULL);</span></a>
<a name="2838"><span class="lineNum"> 2838 </span> : : }</a>
<a name="2839"><span class="lineNum"> 2839 </span> : : </a>
<a name="2840"><span class="lineNum"> 2840 </span> :<span class="lineCov"> 17330 : sigemptyset(&timer_set);</span></a>
<a name="2841"><span class="lineNum"> 2841 </span> :<span class="lineCov"> 17330 : sigaddset(&timer_set, SIGALRM);</span></a>
<a name="2842"><span class="lineNum"> 2842 </span> :<span class="lineCov"> 17330 : sigprocmask(SIG_BLOCK, &timer_set, NULL);</span></a>
<a name="2843"><span class="lineNum"> 2843 </span> :<span class="lineCov"> 17330 : set_sighandler(SIGALRM, timer_sighandler, NULL);</span></a>
<a name="2844"><span class="lineNum"> 2844 </span> : : </a>
<a name="2845"><span class="lineNum"> 2845 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 17330 times"> + </span><span class="branchNoCov" title="Branch 2 was not taken"> - </span><span class="branchNoCov" title="Branch 3 was not taken"> - </span>]:<span class="lineCov"> 17330 : if (nprocs != 0 || daemonized_tracer)</span></a>
<a name="2846"><span class="lineNum"> 2846 </span> :<span class="lineCov"> 17330 : startup_attach();</span></a>
<a name="2847"><span class="lineNum"> 2847 </span> : : </a>
<a name="2848"><span class="lineNum"> 2848 </span> : : /* Do we want pids printed in our -o OUTFILE?</a>
<a name="2849"><span class="lineNum"> 2849 </span> : : * -ff: no (every pid has its own file); or</a>
<a name="2850"><span class="lineNum"> 2850 </span> : : * -f: yes (there can be more pids in the future); or</a>
<a name="2851"><span class="lineNum"> 2851 </span> : : * -p PID1,PID2: yes (there are already more than one pid)</a>
<a name="2852"><span class="lineNum"> 2852 </span> : : */</a>
<a name="2853"><span class="lineNum"> 2853 </span> [<span class="branchCov" title="Branch 0 was taken 17313 times"> + </span><span class="branchCov" title="Branch 1 was taken 25 times"> + </span><span class="branchCov" title="Branch 2 was taken 14909 times"> + </span><span class="branchCov" title="Branch 3 was taken 2404 times"> + </span>]:<span class="lineCov"> 17338 : print_pid_pfx = outfname && !output_separately &&</span></a>
<a name="2854"><span class="lineNum"> 2854 </span> [<span class="branchCov" title="Branch 0 was taken 14721 times"> + </span><span class="branchCov" title="Branch 1 was taken 188 times"> + </span><span class="branchCov" title="Branch 2 was taken 14719 times"> + </span><span class="branchCov" title="Branch 3 was taken 2 times"> + </span>]:<span class="lineCov"> 14909 : ((followfork && !output_separately) || nprocs > 1);</span></a>
<a name="2855"><span class="lineNum"> 2855 </span> :<span class="lineCov"> 17338 : }</span></a>
<a name="2856"><span class="lineNum"> 2856 </span> : : </a>
<a name="2857"><span class="lineNum"> 2857 </span> : : static struct tcb *</a>
<a name="2858"><span class="lineNum"> 2858 </span> :<span class="lineCov"> 176338126 : pid2tcb(const int pid)</span></a>
<a name="2859"><span class="lineNum"> 2859 </span> : : {</a>
<a name="2860"><span class="lineNum"> 2860 </span> [<span class="branchCov" title="Branch 0 was taken 176338126 times"> + </span><span class="branchNoCov" title="Branch 1 was not taken"> - </span>]:<span class="lineCov"> 176338126 : if (pid <= 0)</span></a>
<a name="2861"><span class="lineNum"> 2861 </span> : : return NULL;</a>
<a name="2862"><span class="lineNum"> 2862 </span> : : </a>
<a name="2863"><span class="lineNum"> 2863 </span> : : #define PID2TCB_CACHE_SIZE 1024U</a>
<a name="2864"><span class="lineNum"> 2864 </span> : : #define PID2TCB_CACHE_MASK (PID2TCB_CACHE_SIZE - 1)</a>
<a name="2865"><span class="lineNum"> 2865 </span> : : </a>
<a name="2866"><span class="lineNum"> 2866 </span> :<span class="lineCov"> 176338126 : static struct tcb *pid2tcb_cache[PID2TCB_CACHE_SIZE];</span></a>
<a name="2867"><span class="lineNum"> 2867 </span> :<span class="lineCov"> 176338126 : struct tcb **const ptcp = &pid2tcb_cache[pid & PID2TCB_CACHE_MASK];</span></a>
<a name="2868"><span class="lineNum"> 2868 </span> :<span class="lineCov"> 176338126 : struct tcb *tcp = *ptcp;</span></a>
<a name="2869"><span class="lineNum"> 2869 </span> : : </a>
<a name="2870"><span class="lineNum"> 2870 </span> [<span class="branchCov" title="Branch 0 was taken 176279766 times"> + </span><span class="branchCov" title="Branch 1 was taken 58360 times"> + </span><span class="branchCov" title="Branch 2 was taken 9240 times"> + </span><span class="branchCov" title="Branch 3 was taken 176270526 times"> + </span>]:<span class="lineCov"> 176338126 : if (tcp && tcp->pid == pid)</span></a>
<a name="2871"><span class="lineNum"> 2871 </span> : : return tcp;</a>
<a name="2872"><span class="lineNum"> 2872 </span> : : </a>
<a name="2873"><span class="lineNum"> 2873 </span> [<span class="branchCov" title="Branch 0 was taken 4941050 times"> + </span><span class="branchCov" title="Branch 1 was taken 29680 times"> + </span>]:<span class="lineCov"> 4970730 : for (unsigned int i = 0; i < tcbtabsize; ++i) {</span></a>
<a name="2874"><span class="lineNum"> 2874 </span> :<span class="lineCov"> 4941050 : tcp = tcbtab[i];</span></a>
<a name="2875"><span class="lineNum"> 2875 </span> [<span class="branchCov" title="Branch 0 was taken 37920 times"> + </span><span class="branchCov" title="Branch 1 was taken 4903130 times"> + </span>]:<span class="lineCov"> 4941050 : if (tcp->pid == pid)</span></a>
<a name="2876"><span class="lineNum"> 2876 </span> :<span class="lineCov"> 37920 : return *ptcp = tcp;</span></a>
<a name="2877"><span class="lineNum"> 2877 </span> : : }</a>
<a name="2878"><span class="lineNum"> 2878 </span> : : </a>
<a name="2879"><span class="lineNum"> 2879 </span> : : return NULL;</a>
<a name="2880"><span class="lineNum"> 2880 </span> : : }</a>
<a name="2881"><span class="lineNum"> 2881 </span> : : </a>
<a name="2882"><span class="lineNum"> 2882 </span> : : static void</a>
<a name="2883"><span class="lineNum"> 2883 </span> :<span class="lineCov"> 22630 : cleanup(int fatal_sig)</span></a>
<a name="2884"><span class="lineNum"> 2884 </span> : : {</a>
<a name="2885"><span class="lineNum"> 2885 </span> [<span class="branchCov" title="Branch 0 was taken 22626 times"> + </span><span class="branchCov" title="Branch 1 was taken 4 times"> + </span>]:<span class="lineCov"> 22630 : if (!fatal_sig)</span></a>
<a name="2886"><span class="lineNum"> 2886 </span> :<span class="lineCov"> 22626 : fatal_sig = SIGTERM;</span></a>
<a name="2887"><span class="lineNum"> 2887 </span> : : </a>
<a name="2888"><span class="lineNum"> 2888 </span> [<span class="branchCov" title="Branch 0 was taken 293149 times"> + </span><span class="branchCov" title="Branch 1 was taken 22630 times"> + </span>]:<span class="lineCov"> 315779 : for (unsigned int i = 0; i < tcbtabsize; ++i) {</span></a>
<a name="2889"><span class="lineNum"> 2889 </span> :<span class="lineCov"> 293149 : struct tcb *tcp = tcbtab[i];</span></a>
<a name="2890"><span class="lineNum"> 2890 </span> [<span class="branchCov" title="Branch 0 was taken 293117 times"> + </span><span class="branchCov" title="Branch 1 was taken 32 times"> + </span>]:<span class="lineCov"> 293149 : if (!tcp->pid)</span></a>
<a name="2891"><span class="lineNum"> 2891 </span> :<span class="lineCov"> 293117 : continue;</span></a>
<a name="2892"><span class="lineNum"> 2892 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 32 times"> + </span>]:<span class="lineCov"> 32 : debug_func_msg("looking at pid %u", tcp->pid);</span></a>
<a name="2893"><span class="lineNum"> 2893 </span> [<span class="branchCov" title="Branch 0 was taken 1 time"> + </span><span class="branchCov" title="Branch 1 was taken 31 times"> + </span>]:<span class="lineCov"> 32 : if (tcp->pid == strace_child) {</span></a>
<a name="2894"><span class="lineNum"> 2894 </span> :<span class="lineCov"> 1 : kill(tcp->pid, SIGCONT);</span></a>
<a name="2895"><span class="lineNum"> 2895 </span> :<span class="lineCov"> 1 : kill(tcp->pid, fatal_sig);</span></a>
<a name="2896"><span class="lineNum"> 2896 </span> : : }</a>
<a name="2897"><span class="lineNum"> 2897 </span> :<span class="lineCov"> 32 : detach(tcp);</span></a>
<a name="2898"><span class="lineNum"> 2898 </span> : : }</a>
<a name="2899"><span class="lineNum"> 2899 </span> :<span class="lineCov"> 22630 : }</span></a>
<a name="2900"><span class="lineNum"> 2900 </span> : : </a>
<a name="2901"><span class="lineNum"> 2901 </span> : : static void</a>
<a name="2902"><span class="lineNum"> 2902 </span> :<span class="lineCov"> 4 : interrupt(int sig)</span></a>
<a name="2903"><span class="lineNum"> 2903 </span> : : {</a>
<a name="2904"><span class="lineNum"> 2904 </span> :<span class="lineCov"> 4 : interrupted = sig;</span></a>
<a name="2905"><span class="lineNum"> 2905 </span> :<span class="lineCov"> 4 : }</span></a>
<a name="2906"><span class="lineNum"> 2906 </span> : : </a>
<a name="2907"><span class="lineNum"> 2907 </span> : : static void</a>
<a name="2908"><span class="lineNum"> 2908 </span> :<span class="lineCov"> 75431 : print_debug_info(const int pid, int status)</span></a>
<a name="2909"><span class="lineNum"> 2909 </span> : : {</a>
<a name="2910"><span class="lineNum"> 2910 </span> :<span class="lineCov"> 75431 : const unsigned int event = (unsigned int) status >> 16;</span></a>
<a name="2911"><span class="lineNum"> 2911 </span> :<span class="lineCov"> 75431 : char buf[sizeof("WIFEXITED,exitcode=%u") + sizeof(int)*3 /*paranoia:*/ + 16];</span></a>
<a name="2912"><span class="lineNum"> 2912 </span> :<span class="lineCov"> 75431 : char evbuf[sizeof(",EVENT_VFORK_DONE (%u)") + sizeof(int)*3 /*paranoia:*/ + 16];</span></a>
<a name="2913"><span class="lineNum"> 2913 </span> : : </a>
<a name="2914"><span class="lineNum"> 2914 </span> :<span class="lineCov"> 75431 : strcpy(buf, "???");</span></a>
<a name="2915"><span class="lineNum"> 2915 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 75431 times"> + </span>]:<span class="lineCov"> 75431 : if (WIFSIGNALED(status))</span></a>
<a name="2916"><span class="lineNum"> 2916 </span> [<span class="branchNoExec" title="Branch 0 was not executed"> # </span><span class="branchNoExec" title="Branch 1 was not executed"> # </span>]:<span class="lineNoCov"> 0 : xsprintf(buf, "WIFSIGNALED,%ssig=%s",</span></a>
<a name="2917"><span class="lineNum"> 2917 </span> : : WCOREDUMP(status) ? "core," : "",</a>
<a name="2918"><span class="lineNum"> 2918 </span> : : sprintsigname(WTERMSIG(status)));</a>
<a name="2919"><span class="lineNum"> 2919 </span> [<span class="branchCov" title="Branch 0 was taken 12 times"> + </span><span class="branchCov" title="Branch 1 was taken 75419 times"> + </span>]:<span class="lineCov"> 75431 : if (WIFEXITED(status))</span></a>
<a name="2920"><span class="lineNum"> 2920 </span> :<span class="lineCov"> 12 : xsprintf(buf, "WIFEXITED,exitcode=%u", WEXITSTATUS(status));</span></a>
<a name="2921"><span class="lineNum"> 2921 </span> [<span class="branchCov" title="Branch 0 was taken 75419 times"> + </span><span class="branchCov" title="Branch 1 was taken 12 times"> + </span>]:<span class="lineCov"> 75431 : if (WIFSTOPPED(status))</span></a>
<a name="2922"><span class="lineNum"> 2922 </span> :<span class="lineCov"> 75419 : xsprintf(buf, "WIFSTOPPED,sig=%s",</span></a>
<a name="2923"><span class="lineNum"> 2923 </span> : : sprintsigname(WSTOPSIG(status)));</a>
<a name="2924"><span class="lineNum"> 2924 </span> :<span class="lineCov"> 75431 : evbuf[0] = '\0';</span></a>
<a name="2925"><span class="lineNum"> 2925 </span> [<span class="branchCov" title="Branch 0 was taken 37 times"> + </span><span class="branchCov" title="Branch 1 was taken 75394 times"> + </span>]:<span class="lineCov"> 75431 : if (event != 0) {</span></a>
<a name="2926"><span class="lineNum"> 2926 </span> :<span class="lineCov"> 37 : static const char *const event_names[] = {</span></a>
<a name="2927"><span class="lineNum"> 2927 </span> : : [PTRACE_EVENT_CLONE] = "CLONE",</a>
<a name="2928"><span class="lineNum"> 2928 </span> : : [PTRACE_EVENT_FORK] = "FORK",</a>
<a name="2929"><span class="lineNum"> 2929 </span> : : [PTRACE_EVENT_VFORK] = "VFORK",</a>
<a name="2930"><span class="lineNum"> 2930 </span> : : [PTRACE_EVENT_VFORK_DONE] = "VFORK_DONE",</a>
<a name="2931"><span class="lineNum"> 2931 </span> : : [PTRACE_EVENT_EXEC] = "EXEC",</a>
<a name="2932"><span class="lineNum"> 2932 </span> : : [PTRACE_EVENT_EXIT] = "EXIT",</a>
<a name="2933"><span class="lineNum"> 2933 </span> : : [PTRACE_EVENT_SECCOMP] = "SECCOMP",</a>
<a name="2934"><span class="lineNum"> 2934 </span> : : /* [PTRACE_EVENT_STOP (=128)] would make biggish array */</a>
<a name="2935"><span class="lineNum"> 2935 </span> : : };</a>
<a name="2936"><span class="lineNum"> 2936 </span> :<span class="lineCov"> 37 : const char *e = "??";</span></a>
<a name="2937"><span class="lineNum"> 2937 </span> [<span class="branchCov" title="Branch 0 was taken 13 times"> + </span><span class="branchCov" title="Branch 1 was taken 24 times"> + </span>]:<span class="lineCov"> 37 : if (event < ARRAY_SIZE(event_names))</span></a>
<a name="2938"><span class="lineNum"> 2938 </span> :<span class="lineCov"> 13 : e = event_names[event];</span></a>
<a name="2939"><span class="lineNum"> 2939 </span> [<span class="branchCov" title="Branch 0 was taken 24 times"> + </span><span class="branchNoCov" title="Branch 1 was not taken"> - </span>]:<span class="lineCov"> 24 : else if (event == PTRACE_EVENT_STOP)</span></a>
<a name="2940"><span class="lineNum"> 2940 </span> :<span class="lineCov"> 24 : e = "STOP";</span></a>
<a name="2941"><span class="lineNum"> 2941 </span> :<span class="lineCov"> 37 : xsprintf(evbuf, ",EVENT_%s (%u)", e, event);</span></a>
<a name="2942"><span class="lineNum"> 2942 </span> : : }</a>
<a name="2943"><span class="lineNum"> 2943 </span> :<span class="lineCov"> 75431 : error_msg("[wait(0x%06x) = %u] %s%s", status, pid, buf, evbuf);</span></a>
<a name="2944"><span class="lineNum"> 2944 </span> :<span class="lineCov"> 75431 : }</span></a>
<a name="2945"><span class="lineNum"> 2945 </span> : : </a>
<a name="2946"><span class="lineNum"> 2946 </span> : : static struct tcb *</a>
<a name="2947"><span class="lineNum"> 2947 </span> :<span class="lineCov"> 29680 : maybe_allocate_tcb(const int pid, int status)</span></a>
<a name="2948"><span class="lineNum"> 2948 </span> : : {</a>
<a name="2949"><span class="lineNum"> 2949 </span> [<span class="branchCov" title="Branch 0 was taken 194 times"> + </span><span class="branchCov" title="Branch 1 was taken 29486 times"> + </span>]:<span class="lineCov"> 29680 : if (!WIFSTOPPED(status)) {</span></a>
<a name="2950"><span class="lineNum"> 2950 </span> [<span class="branchCov" title="Branch 0 was taken 2 times"> + </span><span class="branchCov" title="Branch 1 was taken 192 times"> + </span><span class="branchCov" title="Branch 2 was taken 2 times"> + </span><span class="branchNoCov" title="Branch 3 was not taken"> - </span>]:<span class="lineCov"> 194 : if (detach_on_execve && pid == strace_child) {</span></a>
<a name="2951"><span class="lineNum"> 2951 </span> : : /* example: strace -bexecve sh -c 'exec true' */</a>
<a name="2952"><span class="lineNum"> 2952 </span> :<span class="lineCov"> 2 : strace_child = 0;</span></a>
<a name="2953"><span class="lineNum"> 2953 </span> :<span class="lineCov"> 2 : return NULL;</span></a>
<a name="2954"><span class="lineNum"> 2954 </span> : : }</a>
<a name="2955"><span class="lineNum"> 2955 </span> [<span class="branchCov" title="Branch 0 was taken 190 times"> + </span><span class="branchCov" title="Branch 1 was taken 2 times"> + </span>]:<span class="lineCov"> 192 : if (!is_number_in_set(QUIET_EXIT, quiet_set)) {</span></a>
<a name="2956"><span class="lineNum"> 2956 </span> : : /*</a>
<a name="2957"><span class="lineNum"> 2957 </span> : : * This can happen if we inherited an unknown child.</a>
<a name="2958"><span class="lineNum"> 2958 </span> : : * Example: (sleep 1 & exec strace true)</a>
<a name="2959"><span class="lineNum"> 2959 </span> : : */</a>
<a name="2960"><span class="lineNum"> 2960 </span> :<span class="lineCov"> 190 : error_msg("Exit of unknown pid %u ignored", pid);</span></a>
<a name="2961"><span class="lineNum"> 2961 </span> : : }</a>
<a name="2962"><span class="lineNum"> 2962 </span> :<span class="lineCov"> 192 : return NULL;</span></a>
<a name="2963"><span class="lineNum"> 2963 </span> : : }</a>
<a name="2964"><span class="lineNum"> 2964 </span> [<span class="branchCov" title="Branch 0 was taken 29481 times"> + </span><span class="branchCov" title="Branch 1 was taken 5 times"> + </span>]:<span class="lineCov"> 29486 : if (followfork) {</span></a>
<a name="2965"><span class="lineNum"> 2965 </span> : : /* We assume it's a fork/vfork/clone child */</a>
<a name="2966"><span class="lineNum"> 2966 </span> :<span class="lineCov"> 29481 : struct tcb *tcp = alloctcb(pid);</span></a>
<a name="2967"><span class="lineNum"> 2967 </span> :<span class="lineCov"> 29481 : after_successful_attach(tcp, post_attach_sigstop);</span></a>
<a name="2968"><span class="lineNum"> 2968 </span> [<span class="branchCov" title="Branch 0 was taken 4 times"> + </span><span class="branchCov" title="Branch 1 was taken 29477 times"> + </span>]:<span class="lineCov"> 29481 : if (!is_number_in_set(QUIET_ATTACH, quiet_set))</span></a>
<a name="2969"><span class="lineNum"> 2969 </span> :<span class="lineCov"> 4 : error_msg("Process %d attached", pid);</span></a>
<a name="2970"><span class="lineNum"> 2970 </span> :<span class="lineCov"> 29481 : return tcp;</span></a>
<a name="2971"><span class="lineNum"> 2971 </span> : : } else {</a>
<a name="2972"><span class="lineNum"> 2972 </span> : : /*</a>
<a name="2973"><span class="lineNum"> 2973 </span> : : * This can happen if a clone call misused CLONE_PTRACE itself.</a>
<a name="2974"><span class="lineNum"> 2974 </span> : : *</a>
<a name="2975"><span class="lineNum"> 2975 </span> : : * There used to be a dance around possible re-injection of</a>
<a name="2976"><span class="lineNum"> 2976 </span> : : * WSTOPSIG(status), but it was later removed as the only</a>
<a name="2977"><span class="lineNum"> 2977 </span> : : * observable stop here is the initial ptrace-stop.</a>
<a name="2978"><span class="lineNum"> 2978 </span> : : */</a>
<a name="2979"><span class="lineNum"> 2979 </span> :<span class="lineCov"> 5 : ptrace(PTRACE_DETACH, pid, NULL, 0L);</span></a>
<a name="2980"><span class="lineNum"> 2980 </span> [<span class="branchCov" title="Branch 0 was taken 2 times"> + </span><span class="branchCov" title="Branch 1 was taken 3 times"> + </span>]:<span class="lineCov"> 5 : if (!is_number_in_set(QUIET_ATTACH, quiet_set))</span></a>
<a name="2981"><span class="lineNum"> 2981 </span> :<span class="lineCov"> 2 : error_msg("Detached unknown pid %d", pid);</span></a>
<a name="2982"><span class="lineNum"> 2982 </span> :<span class="lineCov"> 5 : return NULL;</span></a>
<a name="2983"><span class="lineNum"> 2983 </span> : : }</a>
<a name="2984"><span class="lineNum"> 2984 </span> : : }</a>
<a name="2985"><span class="lineNum"> 2985 </span> : : </a>
<a name="2986"><span class="lineNum"> 2986 </span> : : /*</a>
<a name="2987"><span class="lineNum"> 2987 </span> : : * Under Linux, execve changes pid to thread leader's pid, and we see this</a>
<a name="2988"><span class="lineNum"> 2988 </span> : : * changed pid on EVENT_EXEC and later, execve sysexit. Leader "disappears"</a>
<a name="2989"><span class="lineNum"> 2989 </span> : : * without exit notification. Let user know that, drop leader's tcb, and fix</a>
<a name="2990"><span class="lineNum"> 2990 </span> : : * up pid in execve thread's tcb. Effectively, execve thread's tcb replaces</a>
<a name="2991"><span class="lineNum"> 2991 </span> : : * leader's tcb.</a>
<a name="2992"><span class="lineNum"> 2992 </span> : : *</a>
<a name="2993"><span class="lineNum"> 2993 </span> : : * BTW, leader is 'stuck undead' (doesn't report WIFEXITED on exit syscall)</a>
<a name="2994"><span class="lineNum"> 2994 </span> : : * in multi-threaded programs exactly in order to handle this case.</a>
<a name="2995"><span class="lineNum"> 2995 </span> : : */</a>
<a name="2996"><span class="lineNum"> 2996 </span> : : static struct tcb *</a>
<a name="2997"><span class="lineNum"> 2997 </span> :<span class="lineCov"> 17394 : maybe_switch_tcbs(struct tcb *tcp, const int pid)</span></a>
<a name="2998"><span class="lineNum"> 2998 </span> : : {</a>
<a name="2999"><span class="lineNum"> 2999 </span> : : /*</a>
<a name="3000"><span class="lineNum"> 3000 </span> : : * PTRACE_GETEVENTMSG returns old pid starting from Linux 3.0.</a>
<a name="3001"><span class="lineNum"> 3001 </span> : : * On 2.6 and earlier it can return garbage.</a>
<a name="3002"><span class="lineNum"> 3002 </span> : : */</a>
<a name="3003"><span class="lineNum"> 3003 </span> [<span class="branchCov" title="Branch 0 was taken 17394 times"> + </span><span class="branchNoCov" title="Branch 1 was not taken"> - </span>]:<span class="lineCov"> 17394 : if (os_release < KERNEL_VERSION(3, 0, 0))</span></a>
<a name="3004"><span class="lineNum"> 3004 </span> : : return NULL;</a>
<a name="3005"><span class="lineNum"> 3005 </span> : : </a>
<a name="3006"><span class="lineNum"> 3006 </span> :<span class="lineCov"> 17394 : const long old_pid = tcb_wait_tab[tcp->wait_data_idx].msg;</span></a>
<a name="3007"><span class="lineNum"> 3007 </span> : : </a>
<a name="3008"><span class="lineNum"> 3008 </span> : : /* Avoid truncation in pid2tcb() param passing */</a>
<a name="3009"><span class="lineNum"> 3009 </span> [<span class="branchCov" title="Branch 0 was taken 17394 times"> + </span><span class="branchNoCov" title="Branch 1 was not taken"> - </span><span class="branchCov" title="Branch 2 was taken 19 times"> + </span><span class="branchCov" title="Branch 3 was taken 17375 times"> + </span>]:<span class="lineCov"> 17394 : if (old_pid <= 0 || old_pid == pid)</span></a>
<a name="3010"><span class="lineNum"> 3010 </span> : : return NULL;</a>
<a name="3011"><span class="lineNum"> 3011 </span> [<span class="branchCov" title="Branch 0 was taken 19 times"> + </span><span class="branchNoCov" title="Branch 1 was not taken"> - </span>]:<span class="lineCov"> 19 : if ((unsigned long) old_pid > UINT_MAX)</span></a>
<a name="3012"><span class="lineNum"> 3012 </span> : : return NULL;</a>
<a name="3013"><span class="lineNum"> 3013 </span> :<span class="lineCov"> 19 : struct tcb *execve_thread = pid2tcb(old_pid);</span></a>
<a name="3014"><span class="lineNum"> 3014 </span> : : /* It should be !NULL, but I feel paranoid */</a>
<a name="3015"><span class="lineNum"> 3015 </span> [<span class="branchCov" title="Branch 0 was taken 19 times"> + </span><span class="branchNoCov" title="Branch 1 was not taken"> - </span>]:<span class="lineCov"> 19 : if (!execve_thread)</span></a>
<a name="3016"><span class="lineNum"> 3016 </span> : : return NULL;</a>
<a name="3017"><span class="lineNum"> 3017 </span> : : </a>
<a name="3018"><span class="lineNum"> 3018 </span> [<span class="branchCov" title="Branch 0 was taken 7 times"> + </span><span class="branchCov" title="Branch 1 was taken 12 times"> + </span>]:<span class="lineCov"> 19 : if (execve_thread->curcol != 0) {</span></a>
<a name="3019"><span class="lineNum"> 3019 </span> : : /*</a>
<a name="3020"><span class="lineNum"> 3020 </span> : : * One case we are here is -ff, try</a>
<a name="3021"><span class="lineNum"> 3021 </span> : : * "strace -oLOG -ff test/threaded_execve".</a>
<a name="3022"><span class="lineNum"> 3022 </span> : : * Another case is demonstrated by</a>
<a name="3023"><span class="lineNum"> 3023 </span> : : * tests/maybe_switch_current_tcp.c</a>
<a name="3024"><span class="lineNum"> 3024 </span> : : */</a>
<a name="3025"><span class="lineNum"> 3025 </span> :<span class="lineCov"> 7 : fprintf(execve_thread->outf, " <pid changed to %d ...>\n", pid);</span></a>
<a name="3026"><span class="lineNum"> 3026 </span> : : /*execve_thread->curcol = 0; - no need, see code below */</a>
<a name="3027"><span class="lineNum"> 3027 </span> : : }</a>
<a name="3028"><span class="lineNum"> 3028 </span> : : /* Swap output FILEs and memstream (needed for -ff) */</a>
<a name="3029"><span class="lineNum"> 3029 </span> :<span class="lineCov"> 19 : FILE *fp = execve_thread->outf;</span></a>
<a name="3030"><span class="lineNum"> 3030 </span> :<span class="lineCov"> 19 : execve_thread->outf = tcp->outf;</span></a>
<a name="3031"><span class="lineNum"> 3031 </span> :<span class="lineCov"> 19 : tcp->outf = fp;</span></a>
<a name="3032"><span class="lineNum"> 3032 </span> [<span class="branchCov" title="Branch 0 was taken 17 times"> + </span><span class="branchCov" title="Branch 1 was taken 2 times"> + </span><span class="branchNoCov" title="Branch 2 was not taken"> - </span><span class="branchCov" title="Branch 3 was taken 17 times"> + </span>]:<span class="lineCov"> 19 : if (execve_thread->staged_output_data || tcp->staged_output_data) {</span></a>
<a name="3033"><span class="lineNum"> 3033 </span> :<span class="lineCov"> 2 : struct staged_output_data *staged_output_data;</span></a>
<a name="3034"><span class="lineNum"> 3034 </span> : : </a>
<a name="3035"><span class="lineNum"> 3035 </span> :<span class="lineCov"> 2 : staged_output_data = execve_thread->staged_output_data;</span></a>
<a name="3036"><span class="lineNum"> 3036 </span> :<span class="lineCov"> 2 : execve_thread->staged_output_data = tcp->staged_output_data;</span></a>
<a name="3037"><span class="lineNum"> 3037 </span> :<span class="lineCov"> 2 : tcp->staged_output_data = staged_output_data;</span></a>
<a name="3038"><span class="lineNum"> 3038 </span> : : }</a>
<a name="3039"><span class="lineNum"> 3039 </span> : : </a>
<a name="3040"><span class="lineNum"> 3040 </span> : : /* And their column positions */</a>
<a name="3041"><span class="lineNum"> 3041 </span> :<span class="lineCov"> 19 : execve_thread->curcol = tcp->curcol;</span></a>
<a name="3042"><span class="lineNum"> 3042 </span> :<span class="lineCov"> 19 : tcp->curcol = 0;</span></a>
<a name="3043"><span class="lineNum"> 3043 </span> : : /* Drop leader, but close execve'd thread outfile (if -ff) */</a>
<a name="3044"><span class="lineNum"> 3044 </span> :<span class="lineCov"> 19 : droptcb(tcp);</span></a>
<a name="3045"><span class="lineNum"> 3045 </span> : : /* Switch to the thread, reusing leader's outfile and pid */</a>
<a name="3046"><span class="lineNum"> 3046 </span> :<span class="lineCov"> 19 : tcp = execve_thread;</span></a>
<a name="3047"><span class="lineNum"> 3047 </span> :<span class="lineCov"> 19 : tcp->pid = pid;</span></a>
<a name="3048"><span class="lineNum"> 3048 </span> [<span class="branchCov" title="Branch 0 was taken 19 times"> + </span><span class="branchNoCov" title="Branch 1 was not taken"> - </span>]:<span class="lineCov"> 19 : if (cflag != CFLAG_ONLY_STATS) {</span></a>
<a name="3049"><span class="lineNum"> 3049 </span> [<span class="branchCov" title="Branch 0 was taken 12 times"> + </span><span class="branchCov" title="Branch 1 was taken 7 times"> + </span>]:<span class="lineCov"> 19 : if (!is_number_in_set(QUIET_THREAD_EXECVE, quiet_set)) {</span></a>
<a name="3050"><span class="lineNum"> 3050 </span> :<span class="lineCov"> 12 : printleader(tcp);</span></a>
<a name="3051"><span class="lineNum"> 3051 </span> :<span class="lineCov"> 12 : tprintf("+++ superseded by execve in pid %lu +++\n",</span></a>
<a name="3052"><span class="lineNum"> 3052 </span> : : old_pid);</a>
<a name="3053"><span class="lineNum"> 3053 </span> :<span class="lineCov"> 12 : line_ended();</span></a>
<a name="3054"><span class="lineNum"> 3054 </span> : : }</a>
<a name="3055"><span class="lineNum"> 3055 </span> : : /*</a>
<a name="3056"><span class="lineNum"> 3056 </span> : : * Need to reopen memstream for thread</a>
<a name="3057"><span class="lineNum"> 3057 </span> : : * as we closed it in droptcb.</a>
<a name="3058"><span class="lineNum"> 3058 </span> : : */</a>
<a name="3059"><span class="lineNum"> 3059 </span> [<span class="branchCov" title="Branch 0 was taken 2 times"> + </span><span class="branchCov" title="Branch 1 was taken 17 times"> + </span>]:<span class="lineCov"> 19 : if (!is_complete_set(status_set, NUMBER_OF_STATUSES))</span></a>
<a name="3060"><span class="lineNum"> 3060 </span> :<span class="lineCov"> 2 : strace_open_memstream(tcp);</span></a>
<a name="3061"><span class="lineNum"> 3061 </span> :<span class="lineCov"> 19 : tcp->flags |= TCB_REPRINT;</span></a>
<a name="3062"><span class="lineNum"> 3062 </span> : : }</a>
<a name="3063"><span class="lineNum"> 3063 </span> : : </a>
<a name="3064"><span class="lineNum"> 3064 </span> : : return tcp;</a>
<a name="3065"><span class="lineNum"> 3065 </span> : : }</a>
<a name="3066"><span class="lineNum"> 3066 </span> : : </a>
<a name="3067"><span class="lineNum"> 3067 </span> : : static struct tcb *</a>
<a name="3068"><span class="lineNum"> 3068 </span> :<span class="lineCov"> 17394 : maybe_switch_current_tcp(void)</span></a>
<a name="3069"><span class="lineNum"> 3069 </span> : : {</a>
<a name="3070"><span class="lineNum"> 3070 </span> :<span class="lineCov"> 17394 : struct tcb *tcp = maybe_switch_tcbs(current_tcp, current_tcp->pid);</span></a>
<a name="3071"><span class="lineNum"> 3071 </span> : : </a>
<a name="3072"><span class="lineNum"> 3072 </span> [<span class="branchCov" title="Branch 0 was taken 19 times"> + </span><span class="branchCov" title="Branch 1 was taken 17375 times"> + </span>]:<span class="lineCov"> 17394 : if (tcp)</span></a>
<a name="3073"><span class="lineNum"> 3073 </span> :<span class="lineCov"> 19 : set_current_tcp(tcp);</span></a>
<a name="3074"><span class="lineNum"> 3074 </span> : : </a>
<a name="3075"><span class="lineNum"> 3075 </span> :<span class="lineCov"> 17394 : return tcp;</span></a>
<a name="3076"><span class="lineNum"> 3076 </span> : : }</a>
<a name="3077"><span class="lineNum"> 3077 </span> : : </a>
<a name="3078"><span class="lineNum"> 3078 </span> : : static void</a>
<a name="3079"><span class="lineNum"> 3079 </span> :<span class="lineCov"> 10070 : print_signalled(struct tcb *tcp, const int pid, int status)</span></a>
<a name="3080"><span class="lineNum"> 3080 </span> : : {</a>
<a name="3081"><span class="lineNum"> 3081 </span> [<span class="branchCov" title="Branch 0 was taken 8 times"> + </span><span class="branchCov" title="Branch 1 was taken 10062 times"> + </span>]:<span class="lineCov"> 10070 : if (pid == strace_child) {</span></a>
<a name="3082"><span class="lineNum"> 3082 </span> :<span class="lineCov"> 8 : exit_code = 0x100 | WTERMSIG(status);</span></a>
<a name="3083"><span class="lineNum"> 3083 </span> :<span class="lineCov"> 8 : strace_child = 0;</span></a>
<a name="3084"><span class="lineNum"> 3084 </span> : : }</a>
<a name="3085"><span class="lineNum"> 3085 </span> : : </a>
<a name="3086"><span class="lineNum"> 3086 </span> [<span class="branchCov" title="Branch 0 was taken 10070 times"> + </span><span class="branchNoCov" title="Branch 1 was not taken"> - </span>]:<span class="lineCov"> 10070 : if (cflag != CFLAG_ONLY_STATS</span></a>
<a name="3087"><span class="lineNum"> 3087 </span> [<span class="branchCov" title="Branch 0 was taken 4 times"> + </span><span class="branchCov" title="Branch 1 was taken 10066 times"> + </span>]:<span class="lineCov"> 10070 : && is_number_in_set(WTERMSIG(status), signal_set)) {</span></a>
<a name="3088"><span class="lineNum"> 3088 </span> :<span class="lineCov"> 4 : printleader(tcp);</span></a>
<a name="3089"><span class="lineNum"> 3089 </span> :<span class="lineCov"> 4 : tprintf("+++ killed by %s %s+++\n",</span></a>
<a name="3090"><span class="lineNum"> 3090 </span> : : sprintsigname(WTERMSIG(status)),</a>
<a name="3091"><span class="lineNum"> 3091 </span> [<span class="branchCov" title="Branch 0 was taken 4 times"> + </span><span class="branchNoCov" title="Branch 1 was not taken"> - </span>]:<span class="lineCov"> 4 : WCOREDUMP(status) ? "(core dumped) " : "");</span></a>
<a name="3092"><span class="lineNum"> 3092 </span> :<span class="lineCov"> 4 : line_ended();</span></a>
<a name="3093"><span class="lineNum"> 3093 </span> : : }</a>
<a name="3094"><span class="lineNum"> 3094 </span> :<span class="lineCov"> 10070 : }</span></a>
<a name="3095"><span class="lineNum"> 3095 </span> : : </a>
<a name="3096"><span class="lineNum"> 3096 </span> : : static void</a>
<a name="3097"><span class="lineNum"> 3097 </span> :<span class="lineCov"> 36729 : print_exited(struct tcb *tcp, const int pid, int status)</span></a>
<a name="3098"><span class="lineNum"> 3098 </span> : : {</a>
<a name="3099"><span class="lineNum"> 3099 </span> [<span class="branchCov" title="Branch 0 was taken 17312 times"> + </span><span class="branchCov" title="Branch 1 was taken 19417 times"> + </span>]:<span class="lineCov"> 36729 : if (pid == strace_child) {</span></a>
<a name="3100"><span class="lineNum"> 3100 </span> :<span class="lineCov"> 17312 : exit_code = WEXITSTATUS(status);</span></a>
<a name="3101"><span class="lineNum"> 3101 </span> :<span class="lineCov"> 17312 : strace_child = 0;</span></a>
<a name="3102"><span class="lineNum"> 3102 </span> : : }</a>
<a name="3103"><span class="lineNum"> 3103 </span> : : </a>
<a name="3104"><span class="lineNum"> 3104 </span> [<span class="branchCov" title="Branch 0 was taken 36656 times"> + </span><span class="branchCov" title="Branch 1 was taken 73 times"> + </span><span class="branchCov" title="Branch 2 was taken 10522 times"> + </span><span class="branchCov" title="Branch 3 was taken 26134 times"> + </span>]:<span class="lineCov"> 73385 : if (cflag != CFLAG_ONLY_STATS &&</span></a>
<a name="3105"><span class="lineNum"> 3105 </span> :<span class="lineCov"> 36656 : !is_number_in_set(QUIET_EXIT, quiet_set)) {</span></a>
<a name="3106"><span class="lineNum"> 3106 </span> :<span class="lineCov"> 10522 : printleader(tcp);</span></a>
<a name="3107"><span class="lineNum"> 3107 </span> :<span class="lineCov"> 10522 : tprintf("+++ exited with %d +++\n", WEXITSTATUS(status));</span></a>
<a name="3108"><span class="lineNum"> 3108 </span> :<span class="lineCov"> 10522 : line_ended();</span></a>
<a name="3109"><span class="lineNum"> 3109 </span> : : }</a>
<a name="3110"><span class="lineNum"> 3110 </span> :<span class="lineCov"> 36729 : }</span></a>
<a name="3111"><span class="lineNum"> 3111 </span> : : </a>
<a name="3112"><span class="lineNum"> 3112 </span> : : static void</a>
<a name="3113"><span class="lineNum"> 3113 </span> :<span class="lineCov"> 81774 : print_stopped(struct tcb *tcp, const siginfo_t *si, const unsigned int sig)</span></a>
<a name="3114"><span class="lineNum"> 3114 </span> : : {</a>
<a name="3115"><span class="lineNum"> 3115 </span> [<span class="branchCov" title="Branch 0 was taken 81702 times"> + </span><span class="branchCov" title="Branch 1 was taken 72 times"> + </span>]:<span class="lineCov"> 81774 : if (cflag != CFLAG_ONLY_STATS</span></a>
<a name="3116"><span class="lineNum"> 3116 </span> [<span class="branchCov" title="Branch 0 was taken 47119 times"> + </span><span class="branchCov" title="Branch 1 was taken 34583 times"> + </span>]:<span class="lineCov"> 81702 : && !hide_log(tcp)</span></a>
<a name="3117"><span class="lineNum"> 3117 </span> [<span class="branchCov" title="Branch 0 was taken 6254 times"> + </span><span class="branchCov" title="Branch 1 was taken 40865 times"> + </span>]:<span class="lineCov"> 47119 : && is_number_in_set(sig, signal_set)) {</span></a>
<a name="3118"><span class="lineNum"> 3118 </span> :<span class="lineCov"> 6254 : printleader(tcp);</span></a>
<a name="3119"><span class="lineNum"> 3119 </span> [<span class="branchCov" title="Branch 0 was taken 6252 times"> + </span><span class="branchCov" title="Branch 1 was taken 2 times"> + </span>]:<span class="lineCov"> 6254 : if (si) {</span></a>
<a name="3120"><span class="lineNum"> 3120 </span> :<span class="lineCov"> 6252 : tprintf("--- %s ", sprintsigname(sig));</span></a>
<a name="3121"><span class="lineNum"> 3121 </span> :<span class="lineCov"> 6252 : printsiginfo(tcp, si);</span></a>
<a name="3122"><span class="lineNum"> 3122 </span> :<span class="lineCov"> 6252 : tprints(" ---\n");</span></a>
<a name="3123"><span class="lineNum"> 3123 </span> : : } else</a>
<a name="3124"><span class="lineNum"> 3124 </span> :<span class="lineCov"> 2 : tprintf("--- stopped by %s ---\n", sprintsigname(sig));</span></a>
<a name="3125"><span class="lineNum"> 3125 </span> :<span class="lineCov"> 6254 : line_ended();</span></a>
<a name="3126"><span class="lineNum"> 3126 </span> : : </a>
<a name="3127"><span class="lineNum"> 3127 </span> : : #ifdef ENABLE_STACKTRACE</a>
<a name="3128"><span class="lineNum"> 3128 </span> : : if (stack_trace_enabled)</a>
<a name="3129"><span class="lineNum"> 3129 </span> : : unwind_tcb_print(tcp);</a>
<a name="3130"><span class="lineNum"> 3130 </span> : : #endif</a>
<a name="3131"><span class="lineNum"> 3131 </span> : : }</a>
<a name="3132"><span class="lineNum"> 3132 </span> :<span class="lineCov"> 81774 : }</span></a>
<a name="3133"><span class="lineNum"> 3133 </span> : : </a>
<a name="3134"><span class="lineNum"> 3134 </span> : : static void</a>
<a name="3135"><span class="lineNum"> 3135 </span> :<span class="lineCov"> 46824 : startup_tcb(struct tcb *tcp)</span></a>
<a name="3136"><span class="lineNum"> 3136 </span> : : {</a>
<a name="3137"><span class="lineNum"> 3137 </span> [<span class="branchCov" title="Branch 0 was taken 12 times"> + </span><span class="branchCov" title="Branch 1 was taken 46812 times"> + </span>]:<span class="lineCov"> 46824 : debug_msg("pid %d has TCB_STARTUP, initializing it", tcp->pid);</span></a>
<a name="3138"><span class="lineNum"> 3138 </span> : : </a>
<a name="3139"><span class="lineNum"> 3139 </span> :<span class="lineCov"> 46824 : tcp->flags &= ~TCB_STARTUP;</span></a>
<a name="3140"><span class="lineNum"> 3140 </span> : : </a>
<a name="3141"><span class="lineNum"> 3141 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 46824 times"> + </span>]:<span class="lineCov"> 46824 : if (!use_seize) {</span></a>
<a name="3142"><span class="lineNum"> 3142 </span> [<span class="branchNoExec" title="Branch 0 was not executed"> # </span><span class="branchNoExec" title="Branch 1 was not executed"> # </span>]:<span class="lineNoCov"> 0 : debug_msg("setting opts 0x%x on pid %d",</span></a>
<a name="3143"><span class="lineNum"> 3143 </span> : : ptrace_setoptions, tcp->pid);</a>
<a name="3144"><span class="lineNum"> 3144 </span> [<span class="branchNoExec" title="Branch 0 was not executed"> # </span><span class="branchNoExec" title="Branch 1 was not executed"> # </span>]:<span class="lineNoCov"> 0 : if (ptrace(PTRACE_SETOPTIONS, tcp->pid, NULL, ptrace_setoptions) < 0) {</span></a>
<a name="3145"><span class="lineNum"> 3145 </span> [<span class="branchNoExec" title="Branch 0 was not executed"> # </span><span class="branchNoExec" title="Branch 1 was not executed"> # </span>]:<span class="lineNoCov"> 0 : if (errno != ESRCH) {</span></a>
<a name="3146"><span class="lineNum"> 3146 </span> : : /* Should never happen, really */</a>
<a name="3147"><span class="lineNum"> 3147 </span> :<span class="lineNoCov"> 0 : perror_msg_and_die("PTRACE_SETOPTIONS");</span></a>
<a name="3148"><span class="lineNum"> 3148 </span> : : }</a>
<a name="3149"><span class="lineNum"> 3149 </span> : : }</a>
<a name="3150"><span class="lineNum"> 3150 </span> : : }</a>
<a name="3151"><span class="lineNum"> 3151 </span> : : </a>
<a name="3152"><span class="lineNum"> 3152 </span> [<span class="branchCov" title="Branch 0 was taken 20 times"> + </span><span class="branchCov" title="Branch 1 was taken 46804 times"> + </span><span class="branchCov" title="Branch 2 was taken 20 times"> + </span><span class="branchNoCov" title="Branch 3 was not taken"> - </span>]:<span class="lineCov"> 46824 : if ((tcp->flags & TCB_GRABBED) && (get_scno(tcp) == 1))</span></a>
<a name="3153"><span class="lineNum"> 3153 </span> :<span class="lineCov"> 20 : tcp->s_prev_ent = tcp->s_ent;</span></a>
<a name="3154"><span class="lineNum"> 3154 </span> : : </a>
<a name="3155"><span class="lineNum"> 3155 </span> [<span class="branchCov" title="Branch 0 was taken 74 times"> + </span><span class="branchCov" title="Branch 1 was taken 46750 times"> + </span>]:<span class="lineCov"> 46824 : if (cflag) {</span></a>
<a name="3156"><span class="lineNum"> 3156 </span> :<span class="lineCov"> 74 : tcp->atime = tcp->stime;</span></a>
<a name="3157"><span class="lineNum"> 3157 </span> : : }</a>
<a name="3158"><span class="lineNum"> 3158 </span> :<span class="lineCov"> 46824 : }</span></a>
<a name="3159"><span class="lineNum"> 3159 </span> : : </a>
<a name="3160"><span class="lineNum"> 3160 </span> : : static void</a>
<a name="3161"><span class="lineNum"> 3161 </span> :<span class="lineCov"> 46668 : print_event_exit(struct tcb *tcp)</span></a>
<a name="3162"><span class="lineNum"> 3162 </span> : : {</a>
<a name="3163"><span class="lineNum"> 3163 </span> [<span class="branchCov" title="Branch 0 was taken 389 times"> + </span><span class="branchCov" title="Branch 1 was taken 46279 times"> + </span>]:<span class="lineCov"> 46668 : if (entering(tcp) || filtered(tcp) || hide_log(tcp)</span></a>
<a name="3164"><span class="lineNum"> 3164 </span> [<span class="branchCov" title="Branch 0 was taken 326 times"> + </span><span class="branchCov" title="Branch 1 was taken 63 times"> + </span>]:<span class="lineCov"> 389 : || cflag == CFLAG_ONLY_STATS) {</span></a>
<a name="3165"><span class="lineNum"> 3165 </span> : : return;</a>
<a name="3166"><span class="lineNum"> 3166 </span> : : }</a>
<a name="3167"><span class="lineNum"> 3167 </span> : : </a>
<a name="3168"><span class="lineNum"> 3168 </span> [<span class="branchCov" title="Branch 0 was taken 324 times"> + </span><span class="branchCov" title="Branch 1 was taken 2 times"> + </span><span class="branchCov" title="Branch 2 was taken 36 times"> + </span><span class="branchCov" title="Branch 3 was taken 288 times"> + </span> :<span class="lineCov"> 326 : if (!output_separately && printing_tcp && printing_tcp != tcp</span></a>
<span class="lineNum"> </span> <span class="branchCov" title="Branch 4 was taken 12 times"> + </span><span class="branchCov" title="Branch 5 was taken 24 times"> + </span>]
<a name="3169"><span class="lineNum"> 3169 </span> [<span class="branchCov" title="Branch 0 was taken 12 times"> + </span><span class="branchNoCov" title="Branch 1 was not taken"> - </span>]:<span class="lineCov"> 12 : && printing_tcp->curcol != 0) {</span></a>
<a name="3170"><span class="lineNum"> 3170 </span> :<span class="lineCov"> 12 : set_current_tcp(printing_tcp);</span></a>
<a name="3171"><span class="lineNum"> 3171 </span> :<span class="lineCov"> 12 : tprints(" <unfinished ...>\n");</span></a>
<a name="3172"><span class="lineNum"> 3172 </span> :<span class="lineCov"> 12 : flush_tcp_output(printing_tcp);</span></a>
<a name="3173"><span class="lineNum"> 3173 </span> :<span class="lineCov"> 12 : printing_tcp->curcol = 0;</span></a>
<a name="3174"><span class="lineNum"> 3174 </span> :<span class="lineCov"> 12 : set_current_tcp(tcp);</span></a>
<a name="3175"><span class="lineNum"> 3175 </span> : : }</a>
<a name="3176"><span class="lineNum"> 3176 </span> : : </a>
<a name="3177"><span class="lineNum"> 3177 </span> :<span class="lineCov"> 326 : print_syscall_resume(tcp);</span></a>
<a name="3178"><span class="lineNum"> 3178 </span> : : </a>
<a name="3179"><span class="lineNum"> 3179 </span> [<span class="branchCov" title="Branch 0 was taken 7 times"> + </span><span class="branchCov" title="Branch 1 was taken 319 times"> + </span>]:<span class="lineCov"> 326 : if (!(tcp->sys_func_rval & RVAL_DECODED)) {</span></a>
<a name="3180"><span class="lineNum"> 3180 </span> : : /*</a>
<a name="3181"><span class="lineNum"> 3181 </span> : : * The decoder has probably decided to print something</a>
<a name="3182"><span class="lineNum"> 3182 </span> : : * on exiting syscall which is not going to happen.</a>
<a name="3183"><span class="lineNum"> 3183 </span> : : */</a>
<a name="3184"><span class="lineNum"> 3184 </span> :<span class="lineCov"> 7 : tprints(" <unfinished ...>");</span></a>
<a name="3185"><span class="lineNum"> 3185 </span> : : }</a>
<a name="3186"><span class="lineNum"> 3186 </span> : : </a>
<a name="3187"><span class="lineNum"> 3187 </span> :<span class="lineCov"> 326 : printing_tcp = tcp;</span></a>
<a name="3188"><span class="lineNum"> 3188 </span> :<span class="lineCov"> 326 : tprints(") ");</span></a>
<a name="3189"><span class="lineNum"> 3189 </span> :<span class="lineCov"> 326 : tabto();</span></a>
<a name="3190"><span class="lineNum"> 3190 </span> :<span class="lineCov"> 326 : tprints("= ?\n");</span></a>
<a name="3191"><span class="lineNum"> 3191 </span> [<span class="branchCov" title="Branch 0 was taken 7 times"> + </span><span class="branchCov" title="Branch 1 was taken 319 times"> + </span>]:<span class="lineCov"> 326 : if (!is_complete_set(status_set, NUMBER_OF_STATUSES)) {</span></a>
<a name="3192"><span class="lineNum"> 3192 </span> :<span class="lineCov"> 7 : bool publish = is_number_in_set(STATUS_UNFINISHED, status_set);</span></a>
<a name="3193"><span class="lineNum"> 3193 </span> :<span class="lineCov"> 7 : strace_close_memstream(tcp, publish);</span></a>
<a name="3194"><span class="lineNum"> 3194 </span> : : }</a>
<a name="3195"><span class="lineNum"> 3195 </span> :<span class="lineCov"> 326 : line_ended();</span></a>
<a name="3196"><span class="lineNum"> 3196 </span> : : }</a>
<a name="3197"><span class="lineNum"> 3197 </span> : : </a>
<a name="3198"><span class="lineNum"> 3198 </span> : : static size_t</a>
<a name="3199"><span class="lineNum"> 3199 </span> : : trace_wait_data_size(struct tcb *tcp)</a>
<a name="3200"><span class="lineNum"> 3200 </span> : : {</a>
<a name="3201"><span class="lineNum"> 3201 </span> : : return sizeof(struct tcb_wait_data);</a>
<a name="3202"><span class="lineNum"> 3202 </span> : : }</a>
<a name="3203"><span class="lineNum"> 3203 </span> : : </a>
<a name="3204"><span class="lineNum"> 3204 </span> : : static struct tcb_wait_data *</a>
<a name="3205"><span class="lineNum"> 3205 </span> :<span class="lineCov"> 176337908 : init_trace_wait_data(void *p)</span></a>
<a name="3206"><span class="lineNum"> 3206 </span> : : {</a>
<a name="3207"><span class="lineNum"> 3207 </span> :<span class="lineCov"> 176337908 : struct tcb_wait_data *wd = p;</span></a>
<a name="3208"><span class="lineNum"> 3208 </span> : : </a>
<a name="3209"><span class="lineNum"> 3209 </span> :<span class="lineCov"> 176337908 : memset(wd, 0, sizeof(*wd));</span></a>
<a name="3210"><span class="lineNum"> 3210 </span> : : </a>
<a name="3211"><span class="lineNum"> 3211 </span> :<span class="lineCov"> 176337908 : return wd;</span></a>
<a name="3212"><span class="lineNum"> 3212 </span> : : }</a>
<a name="3213"><span class="lineNum"> 3213 </span> : : </a>
<a name="3214"><span class="lineNum"> 3214 </span> : : static struct tcb_wait_data *</a>
<a name="3215"><span class="lineNum"> 3215 </span> :<span class="lineCov"> 136 : copy_trace_wait_data(const struct tcb_wait_data *wd)</span></a>
<a name="3216"><span class="lineNum"> 3216 </span> : : {</a>
<a name="3217"><span class="lineNum"> 3217 </span> :<span class="lineCov"> 136 : return xobjdup(wd);</span></a>
<a name="3218"><span class="lineNum"> 3218 </span> : : }</a>
<a name="3219"><span class="lineNum"> 3219 </span> : : </a>
<a name="3220"><span class="lineNum"> 3220 </span> : : static void</a>
<a name="3221"><span class="lineNum"> 3221 </span> :<span class="lineCov"> 136 : free_trace_wait_data(struct tcb_wait_data *wd)</span></a>
<a name="3222"><span class="lineNum"> 3222 </span> : : {</a>
<a name="3223"><span class="lineNum"> 3223 </span> :<span class="lineCov"> 136 : free(wd);</span></a>
<a name="3224"><span class="lineNum"> 3224 </span> : : }</a>
<a name="3225"><span class="lineNum"> 3225 </span> : : </a>
<a name="3226"><span class="lineNum"> 3226 </span> : : static void</a>
<a name="3227"><span class="lineNum"> 3227 </span> :<span class="lineCov"> 176338039 : tcb_wait_tab_check_size(const size_t size)</span></a>
<a name="3228"><span class="lineNum"> 3228 </span> : : {</a>
<a name="3229"><span class="lineNum"> 3229 </span> [<span class="branchCov" title="Branch 0 was taken 22394 times"> + </span><span class="branchCov" title="Branch 1 was taken 176338039 times"> + </span>]:<span class="lineCov"> 176360433 : while (size >= tcb_wait_tab_size) {</span></a>
<a name="3230"><span class="lineNum"> 3230 </span> :<span class="lineCov"> 22394 : tcb_wait_tab = xgrowarray(tcb_wait_tab,</span></a>
<a name="3231"><span class="lineNum"> 3231 </span> : : &tcb_wait_tab_size,</a>
<a name="3232"><span class="lineNum"> 3232 </span> : : sizeof(tcb_wait_tab[0]));</a>
<a name="3233"><span class="lineNum"> 3233 </span> : : }</a>
<a name="3234"><span class="lineNum"> 3234 </span> :<span class="lineCov"> 176338039 : }</span></a>
<a name="3235"><span class="lineNum"> 3235 </span> : : </a>
<a name="3236"><span class="lineNum"> 3236 </span> : : static const struct tcb_wait_data *</a>
<a name="3237"><span class="lineNum"> 3237 </span> :<span class="lineCov"> 176355377 : next_event(void)</span></a>
<a name="3238"><span class="lineNum"> 3238 </span> : : {</a>
<a name="3239"><span class="lineNum"> 3239 </span> [<span class="branchCov" title="Branch 0 was taken 176355373 times"> + </span><span class="branchCov" title="Branch 1 was taken 4 times"> + </span>]:<span class="lineCov"> 176355377 : if (interrupted)</span></a>
<a name="3240"><span class="lineNum"> 3240 </span> : : return NULL;</a>
<a name="3241"><span class="lineNum"> 3241 </span> : : </a>
<a name="3242"><span class="lineNum"> 3242 </span> :<span class="lineCov"> 176355373 : invalidate_umove_cache();</span></a>
<a name="3243"><span class="lineNum"> 3243 </span> : : </a>
<a name="3244"><span class="lineNum"> 3244 </span> :<span class="lineCov"> 176355373 : struct tcb *tcp = NULL;</span></a>
<a name="3245"><span class="lineNum"> 3245 </span> :<span class="lineCov"> 176355373 : struct list_item *elem;</span></a>
<a name="3246"><span class="lineNum"> 3246 </span> : : </a>
<a name="3247"><span class="lineNum"> 3247 </span> :<span class="lineCov"> 176355373 : static EMPTY_LIST(pending_tcps);</span></a>
<a name="3248"><span class="lineNum"> 3248 </span> : : /* Handle the queued tcbs before waiting for new events. */</a>
<a name="3249"><span class="lineNum"> 3249 </span> [<span class="branchCov" title="Branch 0 was taken 23796859 times"> + </span><span class="branchCov" title="Branch 1 was taken 152558514 times"> + </span>]:<span class="lineCov"> 176355373 : if (!list_is_empty(&pending_tcps))</span></a>
<a name="3250"><span class="lineNum"> 3250 </span> :<span class="lineCov"> 23796859 : goto next_event_get_tcp;</span></a>
<a name="3251"><span class="lineNum"> 3251 </span> : : </a>
<a name="3252"><span class="lineNum"> 3252 </span> :<span class="lineCov"> 152558514 : static struct tcb *extra_tcp;</span></a>
<a name="3253"><span class="lineNum"> 3253 </span> :<span class="lineCov"> 152558514 : static size_t wait_extra_data_idx;</span></a>
<a name="3254"><span class="lineNum"> 3254 </span> : : /* Handle the extra tcb event. */</a>
<a name="3255"><span class="lineNum"> 3255 </span> [<span class="branchCov" title="Branch 0 was taken 105 times"> + </span><span class="branchCov" title="Branch 1 was taken 152558409 times"> + </span>]:<span class="lineCov"> 152558514 : if (extra_tcp) {</span></a>
<a name="3256"><span class="lineNum"> 3256 </span> :<span class="lineCov"> 105 : tcp = extra_tcp;</span></a>
<a name="3257"><span class="lineNum"> 3257 </span> :<span class="lineCov"> 105 : extra_tcp = NULL;</span></a>
<a name="3258"><span class="lineNum"> 3258 </span> :<span class="lineCov"> 105 : tcp->wait_data_idx = wait_extra_data_idx;</span></a>
<a name="3259"><span class="lineNum"> 3259 </span> : : </a>
<a name="3260"><span class="lineNum"> 3260 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 105 times"> + </span>]:<span class="lineCov"> 105 : debug_msg("dequeued extra event for pid %u", tcp->pid);</span></a>
<a name="3261"><span class="lineNum"> 3261 </span> :<span class="lineCov"> 105 : goto next_event_exit;</span></a>
<a name="3262"><span class="lineNum"> 3262 </span> : : }</a>
<a name="3263"><span class="lineNum"> 3263 </span> : : </a>
<a name="3264"><span class="lineNum"> 3264 </span> : : /*</a>
<a name="3265"><span class="lineNum"> 3265 </span> : : * Used to exit simply when nprocs hits zero, but in this testcase:</a>
<a name="3266"><span class="lineNum"> 3266 </span> : : * int main(void) { _exit(!!fork()); }</a>
<a name="3267"><span class="lineNum"> 3267 </span> : : * under strace -f, parent sometimes (rarely) manages</a>
<a name="3268"><span class="lineNum"> 3268 </span> : : * to exit before we see the first stop of the child,</a>
<a name="3269"><span class="lineNum"> 3269 </span> : : * and we are losing track of it:</a>
<a name="3270"><span class="lineNum"> 3270 </span> : : * 19923 clone(...) = 19924</a>
<a name="3271"><span class="lineNum"> 3271 </span> : : * 19923 exit_group(1) = ?</a>
<a name="3272"><span class="lineNum"> 3272 </span> : : * 19923 +++ exited with 1 +++</a>
<a name="3273"><span class="lineNum"> 3273 </span> : : * Exiting only when wait() returns ECHILD works better.</a>
<a name="3274"><span class="lineNum"> 3274 </span> : : */</a>
<a name="3275"><span class="lineNum"> 3275 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 152558409 times"> + </span>]:<span class="lineCov"> 152558409 : if (popen_pid != 0) {</span></a>
<a name="3276"><span class="lineNum"> 3276 </span> : : /* However, if -o|logger is in use, we can't do that.</a>
<a name="3277"><span class="lineNum"> 3277 </span> : : * Can work around that by double-forking the logger,</a>
<a name="3278"><span class="lineNum"> 3278 </span> : : * but that loses the ability to wait for its completion</a>
<a name="3279"><span class="lineNum"> 3279 </span> : : * on exit. Oh well...</a>
<a name="3280"><span class="lineNum"> 3280 </span> : : */</a>
<a name="3281"><span class="lineNum"> 3281 </span> [<span class="branchNoExec" title="Branch 0 was not executed"> # </span><span class="branchNoExec" title="Branch 1 was not executed"> # </span>]:<span class="lineNoCov"> 0 : if (nprocs == 0)</span></a>
<a name="3282"><span class="lineNum"> 3282 </span> : : return NULL;</a>
<a name="3283"><span class="lineNum"> 3283 </span> : : }</a>
<a name="3284"><span class="lineNum"> 3284 </span> : : </a>
<a name="3285"><span class="lineNum"> 3285 </span> :<span class="lineCov"> 152558409 : const bool unblock_delay_timer = is_delay_timer_armed();</span></a>
<a name="3286"><span class="lineNum"> 3286 </span> : : </a>
<a name="3287"><span class="lineNum"> 3287 </span> : : /*</a>
<a name="3288"><span class="lineNum"> 3288 </span> : : * The window of opportunity to handle expirations</a>
<a name="3289"><span class="lineNum"> 3289 </span> : : * of the delay timer opens here.</a>
<a name="3290"><span class="lineNum"> 3290 </span> : : *</a>
<a name="3291"><span class="lineNum"> 3291 </span> : : * Unblock the signal handler for the delay timer</a>
<a name="3292"><span class="lineNum"> 3292 </span> : : * iff the delay timer is already created.</a>
<a name="3293"><span class="lineNum"> 3293 </span> : : */</a>
<a name="3294"><span class="lineNum"> 3294 </span> [<span class="branchCov" title="Branch 0 was taken 418 times"> + </span><span class="branchCov" title="Branch 1 was taken 152557991 times"> + </span>]:<span class="lineCov"> 152558409 : if (unblock_delay_timer)</span></a>
<a name="3295"><span class="lineNum"> 3295 </span> :<span class="lineCov"> 418 : sigprocmask(SIG_UNBLOCK, &timer_set, NULL);</span></a>
<a name="3296"><span class="lineNum"> 3296 </span> : : </a>
<a name="3297"><span class="lineNum"> 3297 </span> : : /*</a>
<a name="3298"><span class="lineNum"> 3298 </span> : : * If the delay timer has expired, then its expiration</a>
<a name="3299"><span class="lineNum"> 3299 </span> : : * has been handled already by the signal handler.</a>
<a name="3300"><span class="lineNum"> 3300 </span> : : *</a>
<a name="3301"><span class="lineNum"> 3301 </span> : : * If the delay timer expires during wait4(),</a>
<a name="3302"><span class="lineNum"> 3302 </span> : : * then the system call will be interrupted and</a>
<a name="3303"><span class="lineNum"> 3303 </span> : : * the expiration will be handled by the signal handler.</a>
<a name="3304"><span class="lineNum"> 3304 </span> : : */</a>
<a name="3305"><span class="lineNum"> 3305 </span> :<span class="lineCov"> 152558409 : int status;</span></a>
<a name="3306"><span class="lineNum"> 3306 </span> :<span class="lineCov"> 152558409 : struct rusage ru;</span></a>
<a name="3307"><span class="lineNum"> 3307 </span> [<span class="branchCov" title="Branch 0 was taken 152341101 times"> + </span><span class="branchCov" title="Branch 1 was taken 217308 times"> + </span>]:<span class="lineCov"> 304899510 : int pid = wait4(-1, &status, __WALL, (cflag ? &ru : NULL));</span></a>
<a name="3308"><span class="lineNum"> 3308 </span> :<span class="lineCov"> 152558409 : int wait_errno = errno;</span></a>
<a name="3309"><span class="lineNum"> 3309 </span> : : </a>
<a name="3310"><span class="lineNum"> 3310 </span> : : /*</a>
<a name="3311"><span class="lineNum"> 3311 </span> : : * The window of opportunity to handle expirations</a>
<a name="3312"><span class="lineNum"> 3312 </span> : : * of the delay timer closes here.</a>
<a name="3313"><span class="lineNum"> 3313 </span> : : *</a>
<a name="3314"><span class="lineNum"> 3314 </span> : : * Block the signal handler for the delay timer</a>
<a name="3315"><span class="lineNum"> 3315 </span> : : * iff it was unblocked earlier.</a>
<a name="3316"><span class="lineNum"> 3316 </span> : : */</a>
<a name="3317"><span class="lineNum"> 3317 </span> [<span class="branchCov" title="Branch 0 was taken 418 times"> + </span><span class="branchCov" title="Branch 1 was taken 152557991 times"> + </span>]:<span class="lineCov"> 152558409 : if (unblock_delay_timer) {</span></a>
<a name="3318"><span class="lineNum"> 3318 </span> :<span class="lineCov"> 418 : sigprocmask(SIG_BLOCK, &timer_set, NULL);</span></a>
<a name="3319"><span class="lineNum"> 3319 </span> : : </a>
<a name="3320"><span class="lineNum"> 3320 </span> [<span class="branchCov" title="Branch 0 was taken 418 times"> + </span><span class="branchNoCov" title="Branch 1 was not taken"> - </span>]:<span class="lineCov"> 418 : if (restart_failed)</span></a>
<a name="3321"><span class="lineNum"> 3321 </span> : : return NULL;</a>
<a name="3322"><span class="lineNum"> 3322 </span> : : }</a>
<a name="3323"><span class="lineNum"> 3323 </span> : : </a>
<a name="3324"><span class="lineNum"> 3324 </span> : : size_t wait_tab_pos = 0;</a>
<a name="3325"><span class="lineNum"> 3325 </span> : : bool wait_nohang = false;</a>
<a name="3326"><span class="lineNum"> 3326 </span> : : </a>
<a name="3327"><span class="lineNum"> 3327 </span> : : /*</a>
<a name="3328"><span class="lineNum"> 3328 </span> : : * Wait for new events until wait4() returns 0 (meaning that there's</a>
<a name="3329"><span class="lineNum"> 3329 </span> : : * nothing more to wait for for now), or a second event for some tcb</a>
<a name="3330"><span class="lineNum"> 3330 </span> : : * appears (which may happen if a tracee was SIGKILL'ed, for example).</a>
<a name="3331"><span class="lineNum"> 3331 </span> : : */</a>
<a name="3332"><span class="lineNum"> 3332 </span> :<span class="lineCov"> 505234413 : for (;;) {</span></a>
<a name="3333"><span class="lineNum"> 3333 </span> :<span class="lineCov"> 328896411 : struct tcb_wait_data *wd;</span></a>
<a name="3334"><span class="lineNum"> 3334 </span> : : </a>
<a name="3335"><span class="lineNum"> 3335 </span> [<span class="branchCov" title="Branch 0 was taken 34796 times"> + </span><span class="branchCov" title="Branch 1 was taken 328861615 times"> + </span>]:<span class="lineCov"> 328896411 : if (pid < 0) {</span></a>
<a name="3336"><span class="lineNum"> 3336 </span> [<span class="branchCov" title="Branch 0 was taken 34667 times"> + </span><span class="branchCov" title="Branch 1 was taken 129 times"> + </span>]:<span class="lineCov"> 34796 : if (wait_errno == EINTR)</span></a>
<a name="3337"><span class="lineNum"> 3337 </span> : : break;</a>
<a name="3338"><span class="lineNum"> 3338 </span> [<span class="branchCov" title="Branch 0 was taken 17333 times"> + </span><span class="branchCov" title="Branch 1 was taken 17334 times"> + </span>]:<span class="lineCov"> 34667 : if (wait_nohang)</span></a>
<a name="3339"><span class="lineNum"> 3339 </span> : : break;</a>
<a name="3340"><span class="lineNum"> 3340 </span> [<span class="branchCov" title="Branch 0 was taken 17334 times"> + </span><span class="branchNoCov" title="Branch 1 was not taken"> - </span><span class="branchNoCov" title="Branch 2 was not taken"> - </span><span class="branchCov" title="Branch 3 was taken 17334 times"> + </span>]:<span class="lineCov"> 17334 : if (nprocs == 0 && wait_errno == ECHILD)</span></a>
<a name="3341"><span class="lineNum"> 3341 </span> : : return NULL;</a>
<a name="3342"><span class="lineNum"> 3342 </span> : : /*</a>
<a name="3343"><span class="lineNum"> 3343 </span> : : * If nprocs > 0, ECHILD is not expected,</a>
<a name="3344"><span class="lineNum"> 3344 </span> : : * treat it as any other error here:</a>
<a name="3345"><span class="lineNum"> 3345 </span> : : */</a>
<a name="3346"><span class="lineNum"> 3346 </span> :<span class="lineNoCov"> 0 : errno = wait_errno;</span></a>
<a name="3347"><span class="lineNum"> 3347 </span> :<span class="lineNoCov"> 0 : perror_msg_and_die("wait4(__WALL)");</span></a>
<a name="3348"><span class="lineNum"> 3348 </span> : : }</a>
<a name="3349"><span class="lineNum"> 3349 </span> : : </a>
<a name="3350"><span class="lineNum"> 3350 </span> [<span class="branchCov" title="Branch 0 was taken 152523508 times"> + </span><span class="branchCov" title="Branch 1 was taken 176338107 times"> + </span>]:<span class="lineCov"> 328861615 : if (!pid)</span></a>
<a name="3351"><span class="lineNum"> 3351 </span> : : break;</a>
<a name="3352"><span class="lineNum"> 3352 </span> : : </a>
<a name="3353"><span class="lineNum"> 3353 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 176338107 times"> + </span>]:<span class="lineCov"> 176338107 : if (pid == popen_pid) {</span></a>
<a name="3354"><span class="lineNum"> 3354 </span> [<span class="branchNoExec" title="Branch 0 was not executed"> # </span><span class="branchNoExec" title="Branch 1 was not executed"> # </span>]:<span class="lineNoCov"> 0 : if (!WIFSTOPPED(status))</span></a>
<a name="3355"><span class="lineNum"> 3355 </span> :<span class="lineNoCov"> 0 : popen_pid = 0;</span></a>
<a name="3356"><span class="lineNum"> 3356 </span> : : break;</a>
<a name="3357"><span class="lineNum"> 3357 </span> : : }</a>
<a name="3358"><span class="lineNum"> 3358 </span> : : </a>
<a name="3359"><span class="lineNum"> 3359 </span> [<span class="branchCov" title="Branch 0 was taken 75431 times"> + </span><span class="branchCov" title="Branch 1 was taken 176262676 times"> + </span>]:<span class="lineCov"> 176338107 : if (debug_flag)</span></a>
<a name="3360"><span class="lineNum"> 3360 </span> :<span class="lineCov"> 75431 : print_debug_info(pid, status);</span></a>
<a name="3361"><span class="lineNum"> 3361 </span> : : </a>
<a name="3362"><span class="lineNum"> 3362 </span> : : /* Look up 'pid' in our table. */</a>
<a name="3363"><span class="lineNum"> 3363 </span> :<span class="lineCov"> 176338107 : tcp = pid2tcb(pid);</span></a>
<a name="3364"><span class="lineNum"> 3364 </span> : : </a>
<a name="3365"><span class="lineNum"> 3365 </span> [<span class="branchCov" title="Branch 0 was taken 29680 times"> + </span><span class="branchCov" title="Branch 1 was taken 176308427 times"> + </span>]:<span class="lineCov"> 176338107 : if (!tcp) {</span></a>
<a name="3366"><span class="lineNum"> 3366 </span> :<span class="lineCov"> 29680 : tcp = maybe_allocate_tcb(pid, status);</span></a>
<a name="3367"><span class="lineNum"> 3367 </span> [<span class="branchCov" title="Branch 0 was taken 199 times"> + </span><span class="branchCov" title="Branch 1 was taken 29481 times"> + </span>]:<span class="lineCov"> 29680 : if (!tcp)</span></a>
<a name="3368"><span class="lineNum"> 3368 </span> :<span class="lineCov"> 199 : goto next_event_wait_next;</span></a>
<a name="3369"><span class="lineNum"> 3369 </span> : : }</a>
<a name="3370"><span class="lineNum"> 3370 </span> : : </a>
<a name="3371"><span class="lineNum"> 3371 </span> [<span class="branchCov" title="Branch 0 was taken 222158 times"> + </span><span class="branchCov" title="Branch 1 was taken 176115750 times"> + </span>]:<span class="lineCov"> 176337908 : if (cflag) {</span></a>
<a name="3372"><span class="lineNum"> 3372 </span> :<span class="lineCov"> 222158 : tcp->stime.tv_sec = ru.ru_stime.tv_sec;</span></a>
<a name="3373"><span class="lineNum"> 3373 </span> :<span class="lineCov"> 222158 : tcp->stime.tv_nsec = ru.ru_stime.tv_usec * 1000;</span></a>
<a name="3374"><span class="lineNum"> 3374 </span> : : }</a>
<a name="3375"><span class="lineNum"> 3375 </span> : : </a>
<a name="3376"><span class="lineNum"> 3376 </span> :<span class="lineCov"> 176337908 : tcb_wait_tab_check_size(wait_tab_pos);</span></a>
<a name="3377"><span class="lineNum"> 3377 </span> : : </a>
<a name="3378"><span class="lineNum"> 3378 </span> : : /* Initialise a new wait data structure. */</a>
<a name="3379"><span class="lineNum"> 3379 </span> :<span class="lineCov"> 176337908 : wd = tcb_wait_tab + wait_tab_pos;</span></a>
<a name="3380"><span class="lineNum"> 3380 </span> :<span class="lineCov"> 176337908 : init_trace_wait_data(wd);</span></a>
<a name="3381"><span class="lineNum"> 3381 </span> :<span class="lineCov"> 176337908 : wd->status = status;</span></a>
<a name="3382"><span class="lineNum"> 3382 </span> : : </a>
<a name="3383"><span class="lineNum"> 3383 </span> [<span class="branchCov" title="Branch 0 was taken 10070 times"> + </span><span class="branchCov" title="Branch 1 was taken 176327838 times"> + </span>]:<span class="lineCov"> 176337908 : if (WIFSIGNALED(status)) {</span></a>
<a name="3384"><span class="lineNum"> 3384 </span> :<span class="lineCov"> 10070 : wd->te = TE_SIGNALLED;</span></a>
<a name="3385"><span class="lineNum"> 3385 </span> [<span class="branchCov" title="Branch 0 was taken 36729 times"> + </span><span class="branchCov" title="Branch 1 was taken 176291109 times"> + </span>]:<span class="lineCov"> 176327838 : } else if (WIFEXITED(status)) {</span></a>
<a name="3386"><span class="lineNum"> 3386 </span> :<span class="lineCov"> 36729 : wd->te = TE_EXITED;</span></a>
<a name="3387"><span class="lineNum"> 3387 </span> : : } else {</a>
<a name="3388"><span class="lineNum"> 3388 </span> : : /*</a>
<a name="3389"><span class="lineNum"> 3389 </span> : : * As WCONTINUED flag has not been specified to wait4,</a>
<a name="3390"><span class="lineNum"> 3390 </span> : : * it cannot be WIFCONTINUED(status), so the only case</a>
<a name="3391"><span class="lineNum"> 3391 </span> : : * that remains is WIFSTOPPED(status).</a>
<a name="3392"><span class="lineNum"> 3392 </span> : : */</a>
<a name="3393"><span class="lineNum"> 3393 </span> : : </a>
<a name="3394"><span class="lineNum"> 3394 </span> :<span class="lineCov"> 176291109 : const unsigned int sig = WSTOPSIG(status);</span></a>
<a name="3395"><span class="lineNum"> 3395 </span> :<span class="lineCov"> 176291109 : const unsigned int event = (unsigned int) status >> 16;</span></a>
<a name="3396"><span class="lineNum"> 3396 </span> : : </a>
<a name="3397"><span class="lineNum"> 3397 </span> [<span class="branchCov" title="Branch 0 was taken 176129619 times"> + </span><span class="branchCov" title="Branch 1 was taken 64403 times"> + </span><span class="branchCov" title="Branch 2 was taken 17394 times"> + </span><span class="branchCov" title="Branch 3 was taken 46668 times"> + </span> :<span class="lineCov"> 176291109 : switch (event) {</span></a>
<span class="lineNum"> </span> <span class="branchCov" title="Branch 4 was taken 3544 times"> + </span><span class="branchCov" title="Branch 5 was taken 29481 times"> + </span>]
<a name="3398"><span class="lineNum"> 3398 </span> :<span class="lineCov"> 176129619 : case 0:</span></a>
<a name="3399"><span class="lineNum"> 3399 </span> : : /*</a>
<a name="3400"><span class="lineNum"> 3400 </span> : : * Is this post-attach SIGSTOP?</a>
<a name="3401"><span class="lineNum"> 3401 </span> : : * Interestingly, the process may stop</a>
<a name="3402"><span class="lineNum"> 3402 </span> : : * with STOPSIG equal to some other signal</a>
<a name="3403"><span class="lineNum"> 3403 </span> : : * than SIGSTOP if we happened to attach</a>
<a name="3404"><span class="lineNum"> 3404 </span> : : * just before the process takes a signal.</a>
<a name="3405"><span class="lineNum"> 3405 </span> : : */</a>
<a name="3406"><span class="lineNum"> 3406 </span> [<span class="branchCov" title="Branch 0 was taken 59 times"> + </span><span class="branchCov" title="Branch 1 was taken 176129560 times"> + </span>]:<span class="lineCov"> 176129619 : if (sig == SIGSTOP &&</span></a>
<a name="3407"><span class="lineNum"> 3407 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 59 times"> + </span>]:<span class="lineCov"> 59 : (tcp->flags & TCB_IGNORE_ONE_SIGSTOP)) {</span></a>
<a name="3408"><span class="lineNum"> 3408 </span> [<span class="branchNoExec" title="Branch 0 was not executed"> # </span><span class="branchNoExec" title="Branch 1 was not executed"> # </span>]:<span class="lineNoCov"> 0 : debug_func_msg("ignored SIGSTOP on "</span></a>
<a name="3409"><span class="lineNum"> 3409 </span> : : "pid %d", tcp->pid);</a>
<a name="3410"><span class="lineNum"> 3410 </span> :<span class="lineNoCov"> 0 : tcp->flags &= ~TCB_IGNORE_ONE_SIGSTOP;</span></a>
<a name="3411"><span class="lineNum"> 3411 </span> :<span class="lineNoCov"> 0 : wd->te = TE_RESTART;</span></a>
<a name="3412"><span class="lineNum"> 3412 </span> [<span class="branchCov" title="Branch 0 was taken 176065228 times"> + </span><span class="branchCov" title="Branch 1 was taken 64391 times"> + </span>]:<span class="lineCov"> 176129619 : } else if (sig == syscall_trap_sig) {</span></a>
<a name="3413"><span class="lineNum"> 3413 </span> :<span class="lineCov"> 176065228 : wd->te = TE_SYSCALL_STOP;</span></a>
<a name="3414"><span class="lineNum"> 3414 </span> : : } else {</a>
<a name="3415"><span class="lineNum"> 3415 </span> : : /*</a>
<a name="3416"><span class="lineNum"> 3416 </span> : : * True if tracee is stopped by signal</a>
<a name="3417"><span class="lineNum"> 3417 </span> : : * (as opposed to "tracee received</a>
<a name="3418"><span class="lineNum"> 3418 </span> : : * signal").</a>
<a name="3419"><span class="lineNum"> 3419 </span> : : * TODO: shouldn't we check for</a>
<a name="3420"><span class="lineNum"> 3420 </span> : : * errno == EINVAL too?</a>
<a name="3421"><span class="lineNum"> 3421 </span> : : * We can get ESRCH instead, you know...</a>
<a name="3422"><span class="lineNum"> 3422 </span> : : */</a>
<a name="3423"><span class="lineNum"> 3423 </span> :<span class="lineCov"> 64391 : bool stopped = ptrace(PTRACE_GETSIGINFO,</span></a>
<a name="3424"><span class="lineNum"> 3424 </span> : : pid, 0, &wd->si) < 0;</a>
<a name="3425"><span class="lineNum"> 3425 </span> : : </a>
<a name="3426"><span class="lineNum"> 3426 </span> :<span class="lineCov"> 64391 : wd->te = stopped ? TE_GROUP_STOP</span></a>
<a name="3427"><span class="lineNum"> 3427 </span> [<span class="branchCov" title="Branch 0 was taken 64391 times"> + </span><span class="branchNoCov" title="Branch 1 was not taken"> - </span>]:<span class="lineCov"> 64391 : : TE_SIGNAL_DELIVERY_STOP;</span></a>
<a name="3428"><span class="lineNum"> 3428 </span> : : }</a>
<a name="3429"><span class="lineNum"> 3429 </span> : : break;</a>
<a name="3430"><span class="lineNum"> 3430 </span> :<span class="lineCov"> 64403 : case PTRACE_EVENT_STOP:</span></a>
<a name="3431"><span class="lineNum"> 3431 </span> : : /*</a>
<a name="3432"><span class="lineNum"> 3432 </span> : : * PTRACE_INTERRUPT-stop or group-stop.</a>
<a name="3433"><span class="lineNum"> 3433 </span> : : * PTRACE_INTERRUPT-stop has sig == SIGTRAP here.</a>
<a name="3434"><span class="lineNum"> 3434 </span> : : */</a>
<a name="3435"><span class="lineNum"> 3435 </span> [<span class="branchCov" title="Branch 0 was taken 17383 times"> + </span><span class="branchCov" title="Branch 1 was taken 47020 times"> + </span>]:<span class="lineCov"> 64403 : switch (sig) {</span></a>
<a name="3436"><span class="lineNum"> 3436 </span> :<span class="lineCov"> 17383 : case SIGSTOP:</span></a>
<a name="3437"><span class="lineNum"> 3437 </span> : : case SIGTSTP:</a>
<a name="3438"><span class="lineNum"> 3438 </span> : : case SIGTTIN:</a>
<a name="3439"><span class="lineNum"> 3439 </span> : : case SIGTTOU:</a>
<a name="3440"><span class="lineNum"> 3440 </span> :<span class="lineCov"> 17383 : wd->te = TE_GROUP_STOP;</span></a>
<a name="3441"><span class="lineNum"> 3441 </span> :<span class="lineCov"> 17383 : break;</span></a>
<a name="3442"><span class="lineNum"> 3442 </span> :<span class="lineCov"> 47020 : default:</span></a>
<a name="3443"><span class="lineNum"> 3443 </span> :<span class="lineCov"> 47020 : wd->te = TE_RESTART;</span></a>
<a name="3444"><span class="lineNum"> 3444 </span> : : }</a>
<a name="3445"><span class="lineNum"> 3445 </span> : : break;</a>
<a name="3446"><span class="lineNum"> 3446 </span> :<span class="lineCov"> 17394 : case PTRACE_EVENT_EXEC:</span></a>
<a name="3447"><span class="lineNum"> 3447 </span> : : /*</a>
<a name="3448"><span class="lineNum"> 3448 </span> : : * TODO: shouldn't we check for</a>
<a name="3449"><span class="lineNum"> 3449 </span> : : * errno == EINVAL here, too?</a>
<a name="3450"><span class="lineNum"> 3450 </span> : : * We can get ESRCH instead, you know...</a>
<a name="3451"><span class="lineNum"> 3451 </span> : : */</a>
<a name="3452"><span class="lineNum"> 3452 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 17394 times"> + </span>]:<span class="lineCov"> 17394 : if (ptrace(PTRACE_GETEVENTMSG, pid, NULL,</span></a>
<a name="3453"><span class="lineNum"> 3453 </span> : : &wd->msg) < 0)</a>
<a name="3454"><span class="lineNum"> 3454 </span> :<span class="lineNoCov"> 0 : wd->msg = 0;</span></a>
<a name="3455"><span class="lineNum"> 3455 </span> : : </a>
<a name="3456"><span class="lineNum"> 3456 </span> :<span class="lineCov"> 17394 : wd->te = TE_STOP_BEFORE_EXECVE;</span></a>
<a name="3457"><span class="lineNum"> 3457 </span> :<span class="lineCov"> 17394 : break;</span></a>
<a name="3458"><span class="lineNum"> 3458 </span> :<span class="lineCov"> 46668 : case PTRACE_EVENT_EXIT:</span></a>
<a name="3459"><span class="lineNum"> 3459 </span> :<span class="lineCov"> 46668 : wd->te = TE_STOP_BEFORE_EXIT;</span></a>
<a name="3460"><span class="lineNum"> 3460 </span> :<span class="lineCov"> 46668 : break;</span></a>
<a name="3461"><span class="lineNum"> 3461 </span> :<span class="lineCov"> 3544 : case PTRACE_EVENT_SECCOMP:</span></a>
<a name="3462"><span class="lineNum"> 3462 </span> :<span class="lineCov"> 3544 : wd->te = TE_SECCOMP;</span></a>
<a name="3463"><span class="lineNum"> 3463 </span> :<span class="lineCov"> 3544 : break;</span></a>
<a name="3464"><span class="lineNum"> 3464 </span> :<span class="lineCov"> 29481 : default:</span></a>
<a name="3465"><span class="lineNum"> 3465 </span> :<span class="lineCov"> 29481 : wd->te = TE_RESTART;</span></a>
<a name="3466"><span class="lineNum"> 3466 </span> : : }</a>
<a name="3467"><span class="lineNum"> 3467 </span> : : }</a>
<a name="3468"><span class="lineNum"> 3468 </span> : : </a>
<a name="3469"><span class="lineNum"> 3469 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 176337908 times"> + </span>]:<span class="lineCov"> 176337908 : if (!wd->te)</span></a>
<a name="3470"><span class="lineNum"> 3470 </span> :<span class="lineNoCov"> 0 : error_func_msg("Tracing event hasn't been determined "</span></a>
<a name="3471"><span class="lineNum"> 3471 </span> : : "for pid %d, status %0#x", pid, status);</a>
<a name="3472"><span class="lineNum"> 3472 </span> : : </a>
<a name="3473"><span class="lineNum"> 3473 </span> [<span class="branchCov" title="Branch 0 was taken 105 times"> + </span><span class="branchCov" title="Branch 1 was taken 176337803 times"> + </span>]:<span class="lineCov"> 176337908 : if (!list_is_empty(&tcp->wait_list)) {</span></a>
<a name="3474"><span class="lineNum"> 3474 </span> :<span class="lineCov"> 105 : wait_extra_data_idx = wait_tab_pos;</span></a>
<a name="3475"><span class="lineNum"> 3475 </span> :<span class="lineCov"> 105 : extra_tcp = tcp;</span></a>
<a name="3476"><span class="lineNum"> 3476 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 105 times"> + </span>]:<span class="lineCov"> 105 : debug_func_msg("queued extra pid %d", tcp->pid);</span></a>
<a name="3477"><span class="lineNum"> 3477 </span> : : } else {</a>
<a name="3478"><span class="lineNum"> 3478 </span> :<span class="lineCov"> 176337803 : tcp->wait_data_idx = wait_tab_pos;</span></a>
<a name="3479"><span class="lineNum"> 3479 </span> [<span class="branchCov" title="Branch 0 was taken 75431 times"> + </span><span class="branchCov" title="Branch 1 was taken 176262372 times"> + </span>]:<span class="lineCov"> 176337803 : list_append(&pending_tcps, &tcp->wait_list);</span></a>
<a name="3480"><span class="lineNum"> 3480 </span> [<span class="branchCov" title="Branch 0 was taken 75431 times"> + </span><span class="branchCov" title="Branch 1 was taken 176262372 times"> + </span>]:<span class="lineCov"> 176337803 : debug_func_msg("queued pid %d", tcp->pid);</span></a>
<a name="3481"><span class="lineNum"> 3481 </span> : : }</a>
<a name="3482"><span class="lineNum"> 3482 </span> : : </a>
<a name="3483"><span class="lineNum"> 3483 </span> :<span class="lineCov"> 176337908 : wait_tab_pos++;</span></a>
<a name="3484"><span class="lineNum"> 3484 </span> : : </a>
<a name="3485"><span class="lineNum"> 3485 </span> [<span class="branchCov" title="Branch 0 was taken 105 times"> + </span><span class="branchCov" title="Branch 1 was taken 176337803 times"> + </span>]:<span class="lineCov"> 176337908 : if (extra_tcp)</span></a>
<a name="3486"><span class="lineNum"> 3486 </span> : : break;</a>
<a name="3487"><span class="lineNum"> 3487 </span> : : </a>
<a name="3488"><span class="lineNum"> 3488 </span> :<span class="lineCov"> 176337803 : next_event_wait_next:</span></a>
<a name="3489"><span class="lineNum"> 3489 </span> [<span class="branchCov" title="Branch 0 was taken 176115844 times"> + </span><span class="branchCov" title="Branch 1 was taken 222158 times"> + </span>]:<span class="lineCov"> 352453846 : pid = wait4(-1, &status, __WALL | WNOHANG, (cflag ? &ru : NULL));</span></a>
<a name="3490"><span class="lineNum"> 3490 </span> :<span class="lineCov"> 176338002 : wait_errno = errno;</span></a>
<a name="3491"><span class="lineNum"> 3491 </span> :<span class="lineCov"> 176338002 : wait_nohang = true;</span></a>
<a name="3492"><span class="lineNum"> 3492 </span> : : }</a>
<a name="3493"><span class="lineNum"> 3493 </span> : : </a>
<a name="3494"><span class="lineNum"> 3494 </span> :<span class="lineCov"> 152541075 : next_event_get_tcp:</span></a>
<a name="3495"><span class="lineNum"> 3495 </span> :<span class="lineCov"> 176337934 : elem = list_remove_head(&pending_tcps);</span></a>
<a name="3496"><span class="lineNum"> 3496 </span> : : </a>
<a name="3497"><span class="lineNum"> 3497 </span> [<span class="branchCov" title="Branch 0 was taken 131 times"> + </span><span class="branchCov" title="Branch 1 was taken 176337803 times"> + </span>]:<span class="lineCov"> 176337934 : if (!elem) {</span></a>
<a name="3498"><span class="lineNum"> 3498 </span> :<span class="lineCov"> 131 : tcb_wait_tab_check_size(0);</span></a>
<a name="3499"><span class="lineNum"> 3499 </span> :<span class="lineCov"> 131 : memset(tcb_wait_tab, 0, sizeof(*tcb_wait_tab));</span></a>
<a name="3500"><span class="lineNum"> 3500 </span> :<span class="lineCov"> 131 : tcb_wait_tab->te = TE_NEXT;</span></a>
<a name="3501"><span class="lineNum"> 3501 </span> : : </a>
<a name="3502"><span class="lineNum"> 3502 </span> :<span class="lineCov"> 131 : return tcb_wait_tab;</span></a>
<a name="3503"><span class="lineNum"> 3503 </span> : : } else {</a>
<a name="3504"><span class="lineNum"> 3504 </span> :<span class="lineCov"> 176337803 : tcp = list_elem(elem, struct tcb, wait_list);</span></a>
<a name="3505"><span class="lineNum"> 3505 </span> [<span class="branchCov" title="Branch 0 was taken 176262372 times"> + </span><span class="branchCov" title="Branch 1 was taken 75431 times"> + </span>]:<span class="lineCov"> 176337803 : debug_func_msg("dequeued pid %d", tcp->pid);</span></a>
<a name="3506"><span class="lineNum"> 3506 </span> : : }</a>
<a name="3507"><span class="lineNum"> 3507 </span> : : </a>
<a name="3508"><span class="lineNum"> 3508 </span> :<span class="lineCov"> 176262372 : next_event_exit:</span></a>
<a name="3509"><span class="lineNum"> 3509 </span> : : /* Is this the very first time we see this tracee stopped? */</a>
<a name="3510"><span class="lineNum"> 3510 </span> [<span class="branchCov" title="Branch 0 was taken 46824 times"> + </span><span class="branchCov" title="Branch 1 was taken 176291084 times"> + </span>]:<span class="lineCov"> 176337908 : if (tcp->flags & TCB_STARTUP)</span></a>
<a name="3511"><span class="lineNum"> 3511 </span> :<span class="lineCov"> 46824 : startup_tcb(tcp);</span></a>
<a name="3512"><span class="lineNum"> 3512 </span> : : </a>
<a name="3513"><span class="lineNum"> 3513 </span> :<span class="lineCov"> 176337908 : clear_regs(tcp);</span></a>
<a name="3514"><span class="lineNum"> 3514 </span> : : </a>
<a name="3515"><span class="lineNum"> 3515 </span> : : /* Set current output file */</a>
<a name="3516"><span class="lineNum"> 3516 </span> :<span class="lineCov"> 176337908 : set_current_tcp(tcp);</span></a>
<a name="3517"><span class="lineNum"> 3517 </span> : : </a>
<a name="3518"><span class="lineNum"> 3518 </span> :<span class="lineCov"> 176337908 : return tcb_wait_tab + tcp->wait_data_idx;</span></a>
<a name="3519"><span class="lineNum"> 3519 </span> : : }</a>
<a name="3520"><span class="lineNum"> 3520 </span> : : </a>
<a name="3521"><span class="lineNum"> 3521 </span> : : static int</a>
<a name="3522"><span class="lineNum"> 3522 </span> :<span class="lineCov"> 176068769 : trace_syscall(struct tcb *tcp, unsigned int *sig)</span></a>
<a name="3523"><span class="lineNum"> 3523 </span> : : {</a>
<a name="3524"><span class="lineNum"> 3524 </span> [<span class="branchCov" title="Branch 0 was taken 88049616 times"> + </span><span class="branchCov" title="Branch 1 was taken 88019153 times"> + </span>]:<span class="lineCov"> 176068769 : if (entering(tcp)) {</span></a>
<a name="3525"><span class="lineNum"> 3525 </span> :<span class="lineCov"> 88049616 : int res = syscall_entering_decode(tcp);</span></a>
<a name="3526"><span class="lineNum"> 3526 </span> [<span class="branchCov" title="Branch 0 was taken 88049518 times"> + </span><span class="branchCov" title="Branch 1 was taken 98 times"> + </span><span class="branchNoCov" title="Branch 2 was not taken"> - </span>]:<span class="lineCov"> 88049616 : switch (res) {</span></a>
<a name="3527"><span class="lineNum"> 3527 </span> : : case 0:</a>
<a name="3528"><span class="lineNum"> 3528 </span> : : return 0;</a>
<a name="3529"><span class="lineNum"> 3529 </span> :<span class="lineCov"> 88049518 : case 1:</span></a>
<a name="3530"><span class="lineNum"> 3530 </span> :<span class="lineCov"> 88049518 : res = syscall_entering_trace(tcp, sig);</span></a>
<a name="3531"><span class="lineNum"> 3531 </span> : : }</a>
<a name="3532"><span class="lineNum"> 3532 </span> :<span class="lineCov"> 88049616 : syscall_entering_finish(tcp, res);</span></a>
<a name="3533"><span class="lineNum"> 3533 </span> :<span class="lineCov"> 88049616 : return res;</span></a>
<a name="3534"><span class="lineNum"> 3534 </span> : : } else {</a>
<a name="3535"><span class="lineNum"> 3535 </span> :<span class="lineCov"> 88019153 : struct timespec ts = {};</span></a>
<a name="3536"><span class="lineNum"> 3536 </span> :<span class="lineCov"> 88019153 : int res = syscall_exiting_decode(tcp, &ts);</span></a>
<a name="3537"><span class="lineNum"> 3537 </span> [<span class="branchCov" title="Branch 0 was taken 1144821 times"> + </span><span class="branchCov" title="Branch 1 was taken 86874332 times"> + </span>]:<span class="lineCov"> 88019153 : if (res != 0) {</span></a>
<a name="3538"><span class="lineNum"> 3538 </span> :<span class="lineCov"> 1144821 : res = syscall_exiting_trace(tcp, &ts, res);</span></a>
<a name="3539"><span class="lineNum"> 3539 </span> : : }</a>
<a name="3540"><span class="lineNum"> 3540 </span> :<span class="lineCov"> 88019153 : syscall_exiting_finish(tcp);</span></a>
<a name="3541"><span class="lineNum"> 3541 </span> :<span class="lineCov"> 88019153 : return res;</span></a>
<a name="3542"><span class="lineNum"> 3542 </span> : : }</a>
<a name="3543"><span class="lineNum"> 3543 </span> : : }</a>
<a name="3544"><span class="lineNum"> 3544 </span> : : </a>
<a name="3545"><span class="lineNum"> 3545 </span> : : /* Returns true iff the main trace loop has to continue. */</a>
<a name="3546"><span class="lineNum"> 3546 </span> : : static bool</a>
<a name="3547"><span class="lineNum"> 3547 </span> :<span class="lineCov"> 176355513 : dispatch_event(const struct tcb_wait_data *wd)</span></a>
<a name="3548"><span class="lineNum"> 3548 </span> : : {</a>
<a name="3549"><span class="lineNum"> 3549 </span> :<span class="lineCov"> 176355513 : unsigned int restart_op;</span></a>
<a name="3550"><span class="lineNum"> 3550 </span> :<span class="lineCov"> 176355513 : unsigned int restart_sig = 0;</span></a>
<a name="3551"><span class="lineNum"> 3551 </span> [<span class="branchCov" title="Branch 0 was taken 176338175 times"> + </span><span class="branchCov" title="Branch 1 was taken 17338 times"> + </span>]:<span class="lineCov"> 176355513 : enum trace_event te = wd ? wd->te : TE_BREAK;</span></a>
<a name="3552"><span class="lineNum"> 3552 </span> : : /*</a>
<a name="3553"><span class="lineNum"> 3553 </span> : : * Copy wd->status to a non-const variable to workaround glibc bugs</a>
<a name="3554"><span class="lineNum"> 3554 </span> : : * around union wait fixed by glibc commit glibc-2.24~391</a>
<a name="3555"><span class="lineNum"> 3555 </span> : : */</a>
<a name="3556"><span class="lineNum"> 3556 </span> [<span class="branchCov" title="Branch 0 was taken 176338175 times"> + </span><span class="branchCov" title="Branch 1 was taken 17338 times"> + </span>]:<span class="lineCov"> 176355513 : int status = wd ? wd->status : 0;</span></a>
<a name="3557"><span class="lineNum"> 3557 </span> : : </a>
<a name="3558"><span class="lineNum"> 3558 </span> [<span class="branchCov" title="Branch 0 was taken 176338177 times"> + </span><span class="branchCov" title="Branch 1 was taken 17336 times"> + </span><span class="branchCov" title="Branch 2 was taken 7140 times"> + </span><span class="branchCov" title="Branch 3 was taken 176331037 times"> + </span>]:<span class="lineCov"> 176355513 : if (current_tcp && has_seccomp_filter(current_tcp))</span></a>
<a name="3559"><span class="lineNum"> 3559 </span> :<span class="lineCov"> 7140 : restart_op = seccomp_filter_restart_operator(current_tcp);</span></a>
<a name="3560"><span class="lineNum"> 3560 </span> : : else</a>
<a name="3561"><span class="lineNum"> 3561 </span> : : restart_op = PTRACE_SYSCALL;</a>
<a name="3562"><span class="lineNum"> 3562 </span> : : </a>
<a name="3563"><span class="lineNum"> 3563 </span> [<span class="branchCov" title="Branch 0 was taken 131 times"> + </span><span class="branchCov" title="Branch 1 was taken 3544 times"> + </span><span class="branchCov" title="Branch 2 was taken 176065228 times"> + </span><span class="branchCov" title="Branch 3 was taken 64391 times"> + </span> :<span class="lineCov"> 176355513 : switch (te) {</span></a>
<span class="lineNum"> </span><span class="branchCov" title="Branch 4 was taken 10070 times"> + </span><span class="branchCov" title="Branch 5 was taken 17383 times"> + </span><span class="branchCov" title="Branch 6 was taken 36729 times"> + </span><span class="branchCov" title="Branch 7 was taken 17394 times"> + </span><span class="branchCov" title="Branch 8 was taken 46668 times"> + </span>
<span class="lineNum"> </span> <span class="branchCov" title="Branch 9 was taken 76637 times"> + </span><span class="branchCov" title="Branch 10 was taken 17338 times"> + </span>]
<a name="3564"><span class="lineNum"> 3564 </span> : : case TE_BREAK:</a>
<a name="3565"><span class="lineNum"> 3565 </span> : : return false;</a>
<a name="3566"><span class="lineNum"> 3566 </span> : : </a>
<a name="3567"><span class="lineNum"> 3567 </span> :<span class="lineCov"> 131 : case TE_NEXT:</span></a>
<a name="3568"><span class="lineNum"> 3568 </span> :<span class="lineCov"> 131 : return true;</span></a>
<a name="3569"><span class="lineNum"> 3569 </span> : : </a>
<a name="3570"><span class="lineNum"> 3570 </span> : : case TE_RESTART:</a>
<a name="3571"><span class="lineNum"> 3571 </span> : : break;</a>
<a name="3572"><span class="lineNum"> 3572 </span> : : </a>
<a name="3573"><span class="lineNum"> 3573 </span> :<span class="lineCov"> 3544 : case TE_SECCOMP:</span></a>
<a name="3574"><span class="lineNum"> 3574 </span> [<span class="branchCov" title="Branch 0 was taken 3 times"> + </span><span class="branchCov" title="Branch 1 was taken 3541 times"> + </span>]:<span class="lineCov"> 3544 : if (!has_seccomp_filter(current_tcp)) {</span></a>
<a name="3575"><span class="lineNum"> 3575 </span> : : /*</a>
<a name="3576"><span class="lineNum"> 3576 </span> : : * We don't know if forks/clones have a seccomp filter</a>
<a name="3577"><span class="lineNum"> 3577 </span> : : * when they are created, but we can detect it when we</a>
<a name="3578"><span class="lineNum"> 3578 </span> : : * have a seccomp-stop.</a>
<a name="3579"><span class="lineNum"> 3579 </span> : : * In such a case, if !seccomp_before_sysentry, we have</a>
<a name="3580"><span class="lineNum"> 3580 </span> : : * already processed the syscall entry, so we avoid</a>
<a name="3581"><span class="lineNum"> 3581 </span> : : * processing it a second time.</a>
<a name="3582"><span class="lineNum"> 3582 </span> : : */</a>
<a name="3583"><span class="lineNum"> 3583 </span> :<span class="lineCov"> 3 : current_tcp->flags |= TCB_SECCOMP_FILTER;</span></a>
<a name="3584"><span class="lineNum"> 3584 </span> :<span class="lineCov"> 3 : restart_op = PTRACE_SYSCALL;</span></a>
<a name="3585"><span class="lineNum"> 3585 </span> :<span class="lineCov"> 3 : break;</span></a>
<a name="3586"><span class="lineNum"> 3586 </span> : : }</a>
<a name="3587"><span class="lineNum"> 3587 </span> : : </a>
<a name="3588"><span class="lineNum"> 3588 </span> [<span class="branchCov" title="Branch 0 was taken 3541 times"> + </span><span class="branchNoCov" title="Branch 1 was not taken"> - </span>]:<span class="lineCov"> 3541 : if (seccomp_before_sysentry) {</span></a>
<a name="3589"><span class="lineNum"> 3589 </span> : : restart_op = PTRACE_SYSCALL;</a>
<a name="3590"><span class="lineNum"> 3590 </span> : : break;</a>
<a name="3591"><span class="lineNum"> 3591 </span> : : }</a>
<a name="3592"><span class="lineNum"> 3592 </span> :<span class="lineCov"> 176068769 : ATTRIBUTE_FALLTHROUGH;</span></a>
<a name="3593"><span class="lineNum"> 3593 </span> : : </a>
<a name="3594"><span class="lineNum"> 3594 </span> : : case TE_SYSCALL_STOP:</a>
<a name="3595"><span class="lineNum"> 3595 </span> [<span class="branchCov" title="Branch 0 was taken 176068671 times"> + </span><span class="branchCov" title="Branch 1 was taken 98 times"> + </span>]:<span class="lineCov"> 176068769 : if (trace_syscall(current_tcp, &restart_sig) < 0) {</span></a>
<a name="3596"><span class="lineNum"> 3596 </span> : : /*</a>
<a name="3597"><span class="lineNum"> 3597 </span> : : * ptrace() failed in trace_syscall().</a>
<a name="3598"><span class="lineNum"> 3598 </span> : : * Likely a result of process disappearing mid-flight.</a>
<a name="3599"><span class="lineNum"> 3599 </span> : : * Observed case: exit_group() or SIGKILL terminating</a>
<a name="3600"><span class="lineNum"> 3600 </span> : : * all processes in thread group.</a>
<a name="3601"><span class="lineNum"> 3601 </span> : : * We assume that ptrace error was caused by process death.</a>
<a name="3602"><span class="lineNum"> 3602 </span> : : * We used to detach(current_tcp) here, but since we no</a>
<a name="3603"><span class="lineNum"> 3603 </span> : : * longer implement "detach before death" policy/hack,</a>
<a name="3604"><span class="lineNum"> 3604 </span> : : * we can let this process to report its death to us</a>
<a name="3605"><span class="lineNum"> 3605 </span> : : * normally, via WIFEXITED or WIFSIGNALED wait status.</a>
<a name="3606"><span class="lineNum"> 3606 </span> : : */</a>
<a name="3607"><span class="lineNum"> 3607 </span> : : return true;</a>
<a name="3608"><span class="lineNum"> 3608 </span> : : }</a>
<a name="3609"><span class="lineNum"> 3609 </span> [<span class="branchCov" title="Branch 0 was taken 7084 times"> + </span><span class="branchCov" title="Branch 1 was taken 176061587 times"> + </span>]:<span class="lineCov"> 176068671 : if (has_seccomp_filter(current_tcp)) {</span></a>
<a name="3610"><span class="lineNum"> 3610 </span> : : /*</a>
<a name="3611"><span class="lineNum"> 3611 </span> : : * Syscall and seccomp stops can happen in different</a>
<a name="3612"><span class="lineNum"> 3612 </span> : : * orders depending on kernel. strace tests this in</a>
<a name="3613"><span class="lineNum"> 3613 </span> : : * check_seccomp_order_tracer().</a>
<a name="3614"><span class="lineNum"> 3614 </span> : : *</a>
<a name="3615"><span class="lineNum"> 3615 </span> : : * Linux 3.5--4.7:</a>
<a name="3616"><span class="lineNum"> 3616 </span> : : * (seccomp-stop before syscall-entry-stop)</a>
<a name="3617"><span class="lineNum"> 3617 </span> : : * +--> seccomp-stop ->-PTRACE_SYSCALL->-+</a>
<a name="3618"><span class="lineNum"> 3618 </span> : : * | |</a>
<a name="3619"><span class="lineNum"> 3619 </span> : : * PTRACE_CONT syscall-entry-stop</a>
<a name="3620"><span class="lineNum"> 3620 </span> : : * | |</a>
<a name="3621"><span class="lineNum"> 3621 </span> : : * syscall-exit-stop <---PTRACE_SYSCALL-----<----+</a>
<a name="3622"><span class="lineNum"> 3622 </span> : : *</a>
<a name="3623"><span class="lineNum"> 3623 </span> : : * Linux 4.8+:</a>
<a name="3624"><span class="lineNum"> 3624 </span> : : * (seccomp-stop after syscall-entry-stop)</a>
<a name="3625"><span class="lineNum"> 3625 </span> : : * syscall-entry-stop</a>
<a name="3626"><span class="lineNum"> 3626 </span> : : *</a>
<a name="3627"><span class="lineNum"> 3627 </span> : : * +---->-----PTRACE_CONT---->----+</a>
<a name="3628"><span class="lineNum"> 3628 </span> : : * | |</a>
<a name="3629"><span class="lineNum"> 3629 </span> : : * syscall-exit-stop seccomp-stop</a>
<a name="3630"><span class="lineNum"> 3630 </span> : : * | |</a>
<a name="3631"><span class="lineNum"> 3631 </span> : : * +----<----PTRACE_SYSCALL---<---+</a>
<a name="3632"><span class="lineNum"> 3632 </span> : : *</a>
<a name="3633"><span class="lineNum"> 3633 </span> : : * Note in Linux 4.8+, we restart in PTRACE_CONT</a>
<a name="3634"><span class="lineNum"> 3634 </span> : : * after syscall-exit to skip the syscall-entry-stop.</a>
<a name="3635"><span class="lineNum"> 3635 </span> : : * The next seccomp-stop will be treated as a syscall</a>
<a name="3636"><span class="lineNum"> 3636 </span> : : * entry.</a>
<a name="3637"><span class="lineNum"> 3637 </span> : : *</a>
<a name="3638"><span class="lineNum"> 3638 </span> : : * The line below implements this behavior.</a>
<a name="3639"><span class="lineNum"> 3639 </span> : : * Note that exiting(current_tcp) actually marks</a>
<a name="3640"><span class="lineNum"> 3640 </span> : : * a syscall-entry-stop because the flag was inverted</a>
<a name="3641"><span class="lineNum"> 3641 </span> : : * in the above call to trace_syscall.</a>
<a name="3642"><span class="lineNum"> 3642 </span> : : */</a>
<a name="3643"><span class="lineNum"> 3643 </span> [<span class="branchCov" title="Branch 0 was taken 3543 times"> + </span><span class="branchCov" title="Branch 1 was taken 3541 times"> + </span>]:<span class="lineCov"> 7084 : restart_op = exiting(current_tcp) ? PTRACE_SYSCALL : PTRACE_CONT;</span></a>
<a name="3644"><span class="lineNum"> 3644 </span> : : }</a>
<a name="3645"><span class="lineNum"> 3645 </span> : : break;</a>
<a name="3646"><span class="lineNum"> 3646 </span> : : </a>
<a name="3647"><span class="lineNum"> 3647 </span> :<span class="lineCov"> 64391 : case TE_SIGNAL_DELIVERY_STOP:</span></a>
<a name="3648"><span class="lineNum"> 3648 </span> :<span class="lineCov"> 64391 : restart_sig = WSTOPSIG(status);</span></a>
<a name="3649"><span class="lineNum"> 3649 </span> :<span class="lineCov"> 64391 : print_stopped(current_tcp, &wd->si, restart_sig);</span></a>
<a name="3650"><span class="lineNum"> 3650 </span> :<span class="lineCov"> 64391 : break;</span></a>
<a name="3651"><span class="lineNum"> 3651 </span> : : </a>
<a name="3652"><span class="lineNum"> 3652 </span> :<span class="lineCov"> 10070 : case TE_SIGNALLED:</span></a>
<a name="3653"><span class="lineNum"> 3653 </span> :<span class="lineCov"> 10070 : print_signalled(current_tcp, current_tcp->pid, status);</span></a>
<a name="3654"><span class="lineNum"> 3654 </span> :<span class="lineCov"> 10070 : droptcb(current_tcp);</span></a>
<a name="3655"><span class="lineNum"> 3655 </span> :<span class="lineCov"> 10070 : return true;</span></a>
<a name="3656"><span class="lineNum"> 3656 </span> : : </a>
<a name="3657"><span class="lineNum"> 3657 </span> :<span class="lineCov"> 17383 : case TE_GROUP_STOP:</span></a>
<a name="3658"><span class="lineNum"> 3658 </span> :<span class="lineCov"> 17383 : restart_sig = WSTOPSIG(status);</span></a>
<a name="3659"><span class="lineNum"> 3659 </span> :<span class="lineCov"> 17383 : print_stopped(current_tcp, NULL, restart_sig);</span></a>
<a name="3660"><span class="lineNum"> 3660 </span> [<span class="branchCov" title="Branch 0 was taken 17383 times"> + </span><span class="branchNoCov" title="Branch 1 was not taken"> - </span>]:<span class="lineCov"> 17383 : if (use_seize) {</span></a>
<a name="3661"><span class="lineNum"> 3661 </span> : : /*</a>
<a name="3662"><span class="lineNum"> 3662 </span> : : * This ends ptrace-stop, but does *not* end group-stop.</a>
<a name="3663"><span class="lineNum"> 3663 </span> : : * This makes stopping signals work properly on straced</a>
<a name="3664"><span class="lineNum"> 3664 </span> : : * process (that is, process really stops. It used to</a>
<a name="3665"><span class="lineNum"> 3665 </span> : : * continue to run).</a>
<a name="3666"><span class="lineNum"> 3666 </span> : : */</a>
<a name="3667"><span class="lineNum"> 3667 </span> :<span class="lineCov"> 17383 : restart_op = PTRACE_LISTEN;</span></a>
<a name="3668"><span class="lineNum"> 3668 </span> :<span class="lineCov"> 17383 : restart_sig = 0;</span></a>
<a name="3669"><span class="lineNum"> 3669 </span> : : }</a>
<a name="3670"><span class="lineNum"> 3670 </span> : : break;</a>
<a name="3671"><span class="lineNum"> 3671 </span> : : </a>
<a name="3672"><span class="lineNum"> 3672 </span> :<span class="lineCov"> 36729 : case TE_EXITED:</span></a>
<a name="3673"><span class="lineNum"> 3673 </span> :<span class="lineCov"> 36729 : print_exited(current_tcp, current_tcp->pid, status);</span></a>
<a name="3674"><span class="lineNum"> 3674 </span> :<span class="lineCov"> 36729 : droptcb(current_tcp);</span></a>
<a name="3675"><span class="lineNum"> 3675 </span> :<span class="lineCov"> 36729 : return true;</span></a>
<a name="3676"><span class="lineNum"> 3676 </span> : : </a>
<a name="3677"><span class="lineNum"> 3677 </span> :<span class="lineCov"> 17394 : case TE_STOP_BEFORE_EXECVE:</span></a>
<a name="3678"><span class="lineNum"> 3678 </span> : : /* The syscall succeeded, clear the flag. */</a>
<a name="3679"><span class="lineNum"> 3679 </span> :<span class="lineCov"> 17394 : current_tcp->flags &= ~TCB_CHECK_EXEC_SYSCALL;</span></a>
<a name="3680"><span class="lineNum"> 3680 </span> : : /*</a>
<a name="3681"><span class="lineNum"> 3681 </span> : : * Check that we are inside syscall now (next event after</a>
<a name="3682"><span class="lineNum"> 3682 </span> : : * PTRACE_EVENT_EXEC should be for syscall exiting). If it is</a>
<a name="3683"><span class="lineNum"> 3683 </span> : : * not the case, we might have a situation when we attach to a</a>
<a name="3684"><span class="lineNum"> 3684 </span> : : * process and the first thing we see is a PTRACE_EVENT_EXEC</a>
<a name="3685"><span class="lineNum"> 3685 </span> : : * and all the following syscall state tracking is screwed up</a>
<a name="3686"><span class="lineNum"> 3686 </span> : : * otherwise.</a>
<a name="3687"><span class="lineNum"> 3687 </span> : : */</a>
<a name="3688"><span class="lineNum"> 3688 </span> [<span class="branchCov" title="Branch 0 was taken 17375 times"> + </span><span class="branchCov" title="Branch 1 was taken 19 times"> + </span><span class="branchNoCov" title="Branch 2 was not taken"> - </span><span class="branchCov" title="Branch 3 was taken 17375 times"> + </span>]:<span class="lineCov"> 17394 : if (!maybe_switch_current_tcp() && entering(current_tcp)) {</span></a>
<a name="3689"><span class="lineNum"> 3689 </span> :<span class="lineNoCov"> 0 : int ret;</span></a>
<a name="3690"><span class="lineNum"> 3690 </span> : : </a>
<a name="3691"><span class="lineNum"> 3691 </span> :<span class="lineNoCov"> 0 : error_msg("Stray PTRACE_EVENT_EXEC from pid %d"</span></a>
<a name="3692"><span class="lineNum"> 3692 </span> : : ", trying to recover...",</a>
<a name="3693"><span class="lineNum"> 3693 </span> : : current_tcp->pid);</a>
<a name="3694"><span class="lineNum"> 3694 </span> : : </a>
<a name="3695"><span class="lineNum"> 3695 </span> :<span class="lineNoCov"> 0 : current_tcp->flags |= TCB_RECOVERING;</span></a>
<a name="3696"><span class="lineNum"> 3696 </span> :<span class="lineNoCov"> 0 : ret = trace_syscall(current_tcp, &restart_sig);</span></a>
<a name="3697"><span class="lineNum"> 3697 </span> :<span class="lineNoCov"> 0 : current_tcp->flags &= ~TCB_RECOVERING;</span></a>
<a name="3698"><span class="lineNum"> 3698 </span> : : </a>
<a name="3699"><span class="lineNum"> 3699 </span> [<span class="branchNoExec" title="Branch 0 was not executed"> # </span><span class="branchNoExec" title="Branch 1 was not executed"> # </span>]:<span class="lineNoCov"> 0 : if (ret < 0) {</span></a>
<a name="3700"><span class="lineNum"> 3700 </span> : : /* The reason is described in TE_SYSCALL_STOP */</a>
<a name="3701"><span class="lineNum"> 3701 </span> : : return true;</a>
<a name="3702"><span class="lineNum"> 3702 </span> : : }</a>
<a name="3703"><span class="lineNum"> 3703 </span> : : }</a>
<a name="3704"><span class="lineNum"> 3704 </span> : : </a>
<a name="3705"><span class="lineNum"> 3705 </span> [<span class="branchCov" title="Branch 0 was taken 4 times"> + </span><span class="branchCov" title="Branch 1 was taken 17390 times"> + </span>]:<span class="lineCov"> 17394 : if (detach_on_execve) {</span></a>
<a name="3706"><span class="lineNum"> 3706 </span> [<span class="branchCov" title="Branch 0 was taken 2 times"> + </span><span class="branchCov" title="Branch 1 was taken 2 times"> + </span>]:<span class="lineCov"> 4 : if (current_tcp->flags & TCB_SKIP_DETACH_ON_FIRST_EXEC) {</span></a>
<a name="3707"><span class="lineNum"> 3707 </span> :<span class="lineCov"> 2 : current_tcp->flags &= ~TCB_SKIP_DETACH_ON_FIRST_EXEC;</span></a>
<a name="3708"><span class="lineNum"> 3708 </span> : : } else {</a>
<a name="3709"><span class="lineNum"> 3709 </span> :<span class="lineCov"> 2 : detach(current_tcp); /* do "-b execve" thingy */</span></a>
<a name="3710"><span class="lineNum"> 3710 </span> :<span class="lineCov"> 2 : return true;</span></a>
<a name="3711"><span class="lineNum"> 3711 </span> : : }</a>
<a name="3712"><span class="lineNum"> 3712 </span> : : }</a>
<a name="3713"><span class="lineNum"> 3713 </span> : : break;</a>
<a name="3714"><span class="lineNum"> 3714 </span> : : </a>
<a name="3715"><span class="lineNum"> 3715 </span> :<span class="lineCov"> 46668 : case TE_STOP_BEFORE_EXIT:</span></a>
<a name="3716"><span class="lineNum"> 3716 </span> :<span class="lineCov"> 46668 : print_event_exit(current_tcp);</span></a>
<a name="3717"><span class="lineNum"> 3717 </span> :<span class="lineCov"> 46668 : break;</span></a>
<a name="3718"><span class="lineNum"> 3718 </span> : : }</a>
<a name="3719"><span class="lineNum"> 3719 </span> : : </a>
<a name="3720"><span class="lineNum"> 3720 </span> : : /* We handled quick cases, we are permitted to interrupt now. */</a>
<a name="3721"><span class="lineNum"> 3721 </span> [<span class="branchCov" title="Branch 0 was taken 176291145 times"> + </span><span class="branchNoCov" title="Branch 1 was not taken"> - </span>]:<span class="lineCov"> 176291145 : if (interrupted)</span></a>
<a name="3722"><span class="lineNum"> 3722 </span> : : return false;</a>
<a name="3723"><span class="lineNum"> 3723 </span> : : </a>
<a name="3724"><span class="lineNum"> 3724 </span> : : /* If the process is being delayed, do not ptrace_restart just yet */</a>
<a name="3725"><span class="lineNum"> 3725 </span> [<span class="branchCov" title="Branch 0 was taken 136 times"> + </span><span class="branchCov" title="Branch 1 was taken 176291009 times"> + </span>]:<span class="lineCov"> 176291145 : if (syscall_delayed(current_tcp)) {</span></a>
<a name="3726"><span class="lineNum"> 3726 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 136 times"> + </span>]:<span class="lineCov"> 136 : if (current_tcp->delayed_wait_data)</span></a>
<a name="3727"><span class="lineNum"> 3727 </span> :<span class="lineNoCov"> 0 : error_func_msg("pid %d has delayed wait data set"</span></a>
<a name="3728"><span class="lineNum"> 3728 </span> : : " already", current_tcp->pid);</a>
<a name="3729"><span class="lineNum"> 3729 </span> : : </a>
<a name="3730"><span class="lineNum"> 3730 </span> :<span class="lineCov"> 136 : current_tcp->delayed_wait_data = copy_trace_wait_data(wd);</span></a>
<a name="3731"><span class="lineNum"> 3731 </span> : : </a>
<a name="3732"><span class="lineNum"> 3732 </span> :<span class="lineCov"> 136 : return true;</span></a>
<a name="3733"><span class="lineNum"> 3733 </span> : : }</a>
<a name="3734"><span class="lineNum"> 3734 </span> : : </a>
<a name="3735"><span class="lineNum"> 3735 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 176291009 times"> + </span>]:<span class="lineCov"> 176291009 : if (ptrace_restart(restart_op, current_tcp, restart_sig) < 0) {</span></a>
<a name="3736"><span class="lineNum"> 3736 </span> : : /* Note: ptrace_restart emitted error message */</a>
<a name="3737"><span class="lineNum"> 3737 </span> :<span class="lineNoCov"> 0 : exit_code = 1;</span></a>
<a name="3738"><span class="lineNum"> 3738 </span> :<span class="lineNoCov"> 0 : return false;</span></a>
<a name="3739"><span class="lineNum"> 3739 </span> : : }</a>
<a name="3740"><span class="lineNum"> 3740 </span> : : return true;</a>
<a name="3741"><span class="lineNum"> 3741 </span> : : }</a>
<a name="3742"><span class="lineNum"> 3742 </span> : : </a>
<a name="3743"><span class="lineNum"> 3743 </span> : : static bool</a>
<a name="3744"><span class="lineNum"> 3744 </span> :<span class="lineCov"> 136 : restart_delayed_tcb(struct tcb *const tcp)</span></a>
<a name="3745"><span class="lineNum"> 3745 </span> : : {</a>
<a name="3746"><span class="lineNum"> 3746 </span> :<span class="lineCov"> 136 : struct tcb_wait_data *wd = tcp->delayed_wait_data;</span></a>
<a name="3747"><span class="lineNum"> 3747 </span> : : </a>
<a name="3748"><span class="lineNum"> 3748 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 136 times"> + </span>]:<span class="lineCov"> 136 : if (!wd) {</span></a>
<a name="3749"><span class="lineNum"> 3749 </span> :<span class="lineNoCov"> 0 : error_func_msg("No delayed wait data found for pid %d",</span></a>
<a name="3750"><span class="lineNum"> 3750 </span> : : tcp->pid);</a>
<a name="3751"><span class="lineNum"> 3751 </span> :<span class="lineNoCov"> 0 : wd = init_trace_wait_data(alloca(trace_wait_data_size(tcp)));</span></a>
<a name="3752"><span class="lineNum"> 3752 </span> : : }</a>
<a name="3753"><span class="lineNum"> 3753 </span> : : </a>
<a name="3754"><span class="lineNum"> 3754 </span> :<span class="lineCov"> 136 : wd->te = TE_RESTART;</span></a>
<a name="3755"><span class="lineNum"> 3755 </span> : : </a>
<a name="3756"><span class="lineNum"> 3756 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 136 times"> + </span>]:<span class="lineCov"> 136 : debug_func_msg("pid %d", tcp->pid);</span></a>
<a name="3757"><span class="lineNum"> 3757 </span> : : </a>
<a name="3758"><span class="lineNum"> 3758 </span> :<span class="lineCov"> 136 : tcp->flags &= ~TCB_DELAYED;</span></a>
<a name="3759"><span class="lineNum"> 3759 </span> : : </a>
<a name="3760"><span class="lineNum"> 3760 </span> :<span class="lineCov"> 136 : struct tcb *const prev_tcp = current_tcp;</span></a>
<a name="3761"><span class="lineNum"> 3761 </span> :<span class="lineCov"> 136 : current_tcp = tcp;</span></a>
<a name="3762"><span class="lineNum"> 3762 </span> :<span class="lineCov"> 136 : bool ret = dispatch_event(wd);</span></a>
<a name="3763"><span class="lineNum"> 3763 </span> :<span class="lineCov"> 136 : current_tcp = prev_tcp;</span></a>
<a name="3764"><span class="lineNum"> 3764 </span> : : </a>
<a name="3765"><span class="lineNum"> 3765 </span> :<span class="lineCov"> 136 : free_trace_wait_data(tcp->delayed_wait_data);</span></a>
<a name="3766"><span class="lineNum"> 3766 </span> :<span class="lineCov"> 136 : tcp->delayed_wait_data = NULL;</span></a>
<a name="3767"><span class="lineNum"> 3767 </span> : : </a>
<a name="3768"><span class="lineNum"> 3768 </span> :<span class="lineCov"> 136 : return ret;</span></a>
<a name="3769"><span class="lineNum"> 3769 </span> : : }</a>
<a name="3770"><span class="lineNum"> 3770 </span> : : </a>
<a name="3771"><span class="lineNum"> 3771 </span> : : static bool</a>
<a name="3772"><span class="lineNum"> 3772 </span> :<span class="lineCov"> 136 : restart_delayed_tcbs(void)</span></a>
<a name="3773"><span class="lineNum"> 3773 </span> : : {</a>
<a name="3774"><span class="lineNum"> 3774 </span> :<span class="lineCov"> 136 : struct tcb *tcp_next = NULL;</span></a>
<a name="3775"><span class="lineNum"> 3775 </span> :<span class="lineCov"> 136 : struct timespec ts_now;</span></a>
<a name="3776"><span class="lineNum"> 3776 </span> : : </a>
<a name="3777"><span class="lineNum"> 3777 </span> :<span class="lineCov"> 136 : clock_gettime(CLOCK_MONOTONIC, &ts_now);</span></a>
<a name="3778"><span class="lineNum"> 3778 </span> : : </a>
<a name="3779"><span class="lineNum"> 3779 </span> [<span class="branchCov" title="Branch 0 was taken 2176 times"> + </span><span class="branchCov" title="Branch 1 was taken 136 times"> + </span>]:<span class="lineCov"> 2312 : for (size_t i = 0; i < tcbtabsize; i++) {</span></a>
<a name="3780"><span class="lineNum"> 3780 </span> :<span class="lineCov"> 2176 : struct tcb *tcp = tcbtab[i];</span></a>
<a name="3781"><span class="lineNum"> 3781 </span> : : </a>
<a name="3782"><span class="lineNum"> 3782 </span> [<span class="branchCov" title="Branch 0 was taken 612 times"> + </span><span class="branchCov" title="Branch 1 was taken 1564 times"> + </span><span class="branchCov" title="Branch 2 was taken 484 times"> + </span><span class="branchCov" title="Branch 3 was taken 128 times"> + </span>]:<span class="lineCov"> 2176 : if (tcp->pid && syscall_delayed(tcp)) {</span></a>
<a name="3783"><span class="lineNum"> 3783 </span> [<span class="branchCov" title="Branch 0 was taken 136 times"> + </span><span class="branchCov" title="Branch 1 was taken 348 times"> + </span>]:<span class="lineCov"> 484 : if (ts_cmp(&ts_now, &tcp->delay_expiration_time) > 0) {</span></a>
<a name="3784"><span class="lineNum"> 3784 </span> [<span class="branchCov" title="Branch 0 was taken 136 times"> + </span><span class="branchNoCov" title="Branch 1 was not taken"> - </span>]:<span class="lineCov"> 136 : if (!restart_delayed_tcb(tcp))</span></a>
<a name="3785"><span class="lineNum"> 3785 </span> : : return false;</a>
<a name="3786"><span class="lineNum"> 3786 </span> : : } else {</a>
<a name="3787"><span class="lineNum"> 3787 </span> : : /* Check whether this tcb is the next. */</a>
<a name="3788"><span class="lineNum"> 3788 </span> [<span class="branchCov" title="Branch 0 was taken 224 times"> + </span><span class="branchCov" title="Branch 1 was taken 124 times"> + </span><span class="branchCov" title="Branch 2 was taken 80 times"> + </span><span class="branchCov" title="Branch 3 was taken 144 times"> + </span>]:<span class="lineCov"> 572 : if (!tcp_next ||</span></a>
<a name="3789"><span class="lineNum"> 3789 </span> :<span class="lineCov"> 224 : ts_cmp(&tcp_next->delay_expiration_time,</span></a>
<a name="3790"><span class="lineNum"> 3790 </span> : : &tcp->delay_expiration_time) > 0) {</a>
<a name="3791"><span class="lineNum"> 3791 </span> : : tcp_next = tcp;</a>
<a name="3792"><span class="lineNum"> 3792 </span> : : }</a>
<a name="3793"><span class="lineNum"> 3793 </span> : : }</a>
<a name="3794"><span class="lineNum"> 3794 </span> : : }</a>
<a name="3795"><span class="lineNum"> 3795 </span> : : }</a>
<a name="3796"><span class="lineNum"> 3796 </span> : : </a>
<a name="3797"><span class="lineNum"> 3797 </span> [<span class="branchCov" title="Branch 0 was taken 124 times"> + </span><span class="branchCov" title="Branch 1 was taken 12 times"> + </span>]:<span class="lineCov"> 136 : if (tcp_next)</span></a>
<a name="3798"><span class="lineNum"> 3798 </span> :<span class="lineCov"> 124 : arm_delay_timer(tcp_next);</span></a>
<a name="3799"><span class="lineNum"> 3799 </span> : : </a>
<a name="3800"><span class="lineNum"> 3800 </span> : : return true;</a>
<a name="3801"><span class="lineNum"> 3801 </span> : : }</a>
<a name="3802"><span class="lineNum"> 3802 </span> : : </a>
<a name="3803"><span class="lineNum"> 3803 </span> : : /*</a>
<a name="3804"><span class="lineNum"> 3804 </span> : : * As this signal handler does a lot of work that is not suitable</a>
<a name="3805"><span class="lineNum"> 3805 </span> : : * for signal handlers, extra care must be taken to ensure that</a>
<a name="3806"><span class="lineNum"> 3806 </span> : : * it is enabled only in those places where it's safe.</a>
<a name="3807"><span class="lineNum"> 3807 </span> : : */</a>
<a name="3808"><span class="lineNum"> 3808 </span> : : static void</a>
<a name="3809"><span class="lineNum"> 3809 </span> :<span class="lineCov"> 136 : timer_sighandler(int sig)</span></a>
<a name="3810"><span class="lineNum"> 3810 </span> : : {</a>
<a name="3811"><span class="lineNum"> 3811 </span> :<span class="lineCov"> 136 : delay_timer_expired();</span></a>
<a name="3812"><span class="lineNum"> 3812 </span> : : </a>
<a name="3813"><span class="lineNum"> 3813 </span> [<span class="branchCov" title="Branch 0 was taken 136 times"> + </span><span class="branchNoCov" title="Branch 1 was not taken"> - </span>]:<span class="lineCov"> 136 : if (restart_failed)</span></a>
<a name="3814"><span class="lineNum"> 3814 </span> : : return;</a>
<a name="3815"><span class="lineNum"> 3815 </span> : : </a>
<a name="3816"><span class="lineNum"> 3816 </span> :<span class="lineCov"> 136 : int saved_errno = errno;</span></a>
<a name="3817"><span class="lineNum"> 3817 </span> : : </a>
<a name="3818"><span class="lineNum"> 3818 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 136 times"> + </span>]:<span class="lineCov"> 136 : if (!restart_delayed_tcbs())</span></a>
<a name="3819"><span class="lineNum"> 3819 </span> :<span class="lineNoCov"> 0 : restart_failed = 1;</span></a>
<a name="3820"><span class="lineNum"> 3820 </span> : : </a>
<a name="3821"><span class="lineNum"> 3821 </span> :<span class="lineCov"> 136 : errno = saved_errno;</span></a>
<a name="3822"><span class="lineNum"> 3822 </span> : : }</a>
<a name="3823"><span class="lineNum"> 3823 </span> : : </a>
<a name="3824"><span class="lineNum"> 3824 </span> : : static void ATTRIBUTE_NORETURN</a>
<a name="3825"><span class="lineNum"> 3825 </span> :<span class="lineCov"> 17338 : terminate(void)</span></a>
<a name="3826"><span class="lineNum"> 3826 </span> : : {</a>
<a name="3827"><span class="lineNum"> 3827 </span> :<span class="lineCov"> 17338 : int sig = interrupted;</span></a>
<a name="3828"><span class="lineNum"> 3828 </span> : : </a>
<a name="3829"><span class="lineNum"> 3829 </span> :<span class="lineCov"> 17338 : cleanup(sig);</span></a>
<a name="3830"><span class="lineNum"> 3830 </span> [<span class="branchCov" title="Branch 0 was taken 34 times"> + </span><span class="branchCov" title="Branch 1 was taken 17304 times"> + </span>]:<span class="lineCov"> 17338 : if (cflag)</span></a>
<a name="3831"><span class="lineNum"> 3831 </span> :<span class="lineCov"> 34 : call_summary(shared_log);</span></a>
<a name="3832"><span class="lineNum"> 3832 </span> :<span class="lineCov"> 17338 : fflush(NULL);</span></a>
<a name="3833"><span class="lineNum"> 3833 </span> [<span class="branchCov" title="Branch 0 was taken 14909 times"> + </span><span class="branchCov" title="Branch 1 was taken 2429 times"> + </span>]:<span class="lineCov"> 17338 : if (shared_log != stderr)</span></a>
<a name="3834"><span class="lineNum"> 3834 </span> :<span class="lineCov"> 14909 : fclose(shared_log);</span></a>
<a name="3835"><span class="lineNum"> 3835 </span> [<span class="branchNoCov" title="Branch 0 was not taken"> - </span><span class="branchCov" title="Branch 1 was taken 17338 times"> + </span>]:<span class="lineCov"> 17338 : if (popen_pid) {</span></a>
<a name="3836"><span class="lineNum"> 3836 </span> [<span class="branchNoExec" title="Branch 0 was not executed"> # </span><span class="branchNoExec" title="Branch 1 was not executed"> # </span><span class="branchNoExec" title="Branch 2 was not executed"> # </span><span class="branchNoExec" title="Branch 3 was not executed"> # </span>]:<span class="lineNoCov"> 0 : while (waitpid(popen_pid, NULL, 0) < 0 && errno == EINTR)</span></a>
<a name="3837"><span class="lineNum"> 3837 </span> : : ;</a>
<a name="3838"><span class="lineNum"> 3838 </span> : : }</a>
<a name="3839"><span class="lineNum"> 3839 </span> [<span class="branchCov" title="Branch 0 was taken 4 times"> + </span><span class="branchCov" title="Branch 1 was taken 17334 times"> + </span>]:<span class="lineCov"> 17338 : if (sig) {</span></a>
<a name="3840"><span class="lineNum"> 3840 </span> :<span class="lineCov"> 4 : exit_code = 0x100 | sig;</span></a>
<a name="3841"><span class="lineNum"> 3841 </span> : : }</a>
<a name="3842"><span class="lineNum"> 3842 </span> [<span class="branchCov" title="Branch 0 was taken 12 times"> + </span><span class="branchCov" title="Branch 1 was taken 17326 times"> + </span>]:<span class="lineCov"> 17338 : if (exit_code > 0xff) {</span></a>
<a name="3843"><span class="lineNum"> 3843 </span> : : /* Avoid potential core file clobbering. */</a>
<a name="3844"><span class="lineNum"> 3844 </span> :<span class="lineCov"> 12 : struct_rlimit rlim = {0, 0};</span></a>
<a name="3845"><span class="lineNum"> 3845 </span> :<span class="lineCov"> 12 : set_rlimit(RLIMIT_CORE, &rlim);</span></a>
<a name="3846"><span class="lineNum"> 3846 </span> : : </a>
<a name="3847"><span class="lineNum"> 3847 </span> : : /* Child was killed by a signal, mimic that. */</a>
<a name="3848"><span class="lineNum"> 3848 </span> :<span class="lineCov"> 12 : exit_code &= 0xff;</span></a>
<a name="3849"><span class="lineNum"> 3849 </span> :<span class="lineCov"> 12 : signal(exit_code, SIG_DFL);</span></a>
<a name="3850"><span class="lineNum"> 3850 </span> :<span class="lineCov"> 12 : GCOV_DUMP;</span></a>
<a name="3851"><span class="lineNum"> 3851 </span> :<span class="lineNoCov"> 0 : raise(exit_code);</span></a>
<a name="3852"><span class="lineNum"> 3852 </span> : : </a>
<a name="3853"><span class="lineNum"> 3853 </span> : : /* Unblock the signal. */</a>
<a name="3854"><span class="lineNum"> 3854 </span> :<span class="lineNoCov"> 0 : sigset_t mask;</span></a>
<a name="3855"><span class="lineNum"> 3855 </span> :<span class="lineNoCov"> 0 : sigemptyset(&mask);</span></a>
<a name="3856"><span class="lineNum"> 3856 </span> :<span class="lineNoCov"> 0 : sigaddset(&mask, exit_code);</span></a>
<a name="3857"><span class="lineNum"> 3857 </span> :<span class="lineNoCov"> 0 : GCOV_DUMP;</span></a>
<a name="3858"><span class="lineNum"> 3858 </span> :<span class="lineNoCov"> 0 : sigprocmask(SIG_UNBLOCK, &mask, NULL);</span></a>
<a name="3859"><span class="lineNum"> 3859 </span> : : </a>
<a name="3860"><span class="lineNum"> 3860 </span> : : /* Paranoia - what if this signal is not fatal?</a>
<a name="3861"><span class="lineNum"> 3861 </span> : : Exit with 128 + signo then. */</a>
<a name="3862"><span class="lineNum"> 3862 </span> :<span class="lineNoCov"> 0 : exit_code += 128;</span></a>
<a name="3863"><span class="lineNum"> 3863 </span> : : }</a>
<a name="3864"><span class="lineNum"> 3864 </span> :<span class="lineCov"> 17326 : exit(exit_code);</span></a>
<a name="3865"><span class="lineNum"> 3865 </span> : : }</a>
<a name="3866"><span class="lineNum"> 3866 </span> : : </a>
<a name="3867"><span class="lineNum"> 3867 </span> : : int</a>
<a name="3868"><span class="lineNum"> 3868 </span> :<span class="lineCov"> 23834 : main(int argc, char *argv[])</span></a>
<a name="3869"><span class="lineNum"> 3869 </span> : : {</a>
<a name="3870"><span class="lineNum"> 3870 </span> :<span class="lineCov"> 23834 : setlocale(LC_ALL, "");</span></a>
<a name="3871"><span class="lineNum"> 3871 </span> :<span class="lineCov"> 23834 : init(argc, argv);</span></a>
<a name="3872"><span class="lineNum"> 3872 </span> : : </a>
<a name="3873"><span class="lineNum"> 3873 </span> :<span class="lineCov"> 17338 : exit_code = !nprocs;</span></a>
<a name="3874"><span class="lineNum"> 3874 </span> : : </a>
<a name="3875"><span class="lineNum"> 3875 </span> [<span class="branchCov" title="Branch 0 was taken 176338039 times"> + </span><span class="branchCov" title="Branch 1 was taken 17338 times"> + </span>]:<span class="lineCov"> 176355377 : while (dispatch_event(next_event()))</span></a>
<a name="3876"><span class="lineNum"> 3876 </span> : : ;</a>
<a name="3877"><span class="lineNum"> 3877 </span> :<span class="lineCov"> 17338 : terminate();</span></a>
<a name="3878"><span class="lineNum"> 3878 </span> : : }</a>
</pre>
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