LCOV - code coverage report
Current view: top level - strace - process_vm.c (source / functions) Hit Total Coverage
Test: strace-4.18.0.129.97bbb Code Coverage Lines: 23 23 100.0 %
Date: 2017-07-31 03:46:08 Functions: 2 2 100.0 %
Legend: Lines: hit not hit | Branches: + taken - not taken # not executed Branches: 2 2 100.0 %

           Branch data     Line data    Source code
       1                 :            : /*
       2                 :            :  * Copyright (c) 2012 Denys Vlasenko <vda.linux@googlemail.com>
       3                 :            :  * Copyright (c) 2012-2015 Dmitry V. Levin <ldv@altlinux.org>
       4                 :            :  * Copyright (c) 2014-2017 The strace developers.
       5                 :            :  * All rights reserved.
       6                 :            :  *
       7                 :            :  * Redistribution and use in source and binary forms, with or without
       8                 :            :  * modification, are permitted provided that the following conditions
       9                 :            :  * are met:
      10                 :            :  * 1. Redistributions of source code must retain the above copyright
      11                 :            :  *    notice, this list of conditions and the following disclaimer.
      12                 :            :  * 2. Redistributions in binary form must reproduce the above copyright
      13                 :            :  *    notice, this list of conditions and the following disclaimer in the
      14                 :            :  *    documentation and/or other materials provided with the distribution.
      15                 :            :  * 3. The name of the author may not be used to endorse or promote products
      16                 :            :  *    derived from this software without specific prior written permission.
      17                 :            :  *
      18                 :            :  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
      19                 :            :  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
      20                 :            :  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
      21                 :            :  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
      22                 :            :  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
      23                 :            :  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
      24                 :            :  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
      25                 :            :  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
      26                 :            :  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
      27                 :            :  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
      28                 :            :  */
      29                 :            : 
      30                 :            : #include "defs.h"
      31                 :            : 
      32                 :         28 : SYS_FUNC(process_vm_readv)
      33                 :            : {
      34         [ +  + ]:         28 :         if (entering(tcp)) {
      35                 :            :                 /* arg 1: pid */
      36                 :         14 :                 tprintf("%d, ", (int) tcp->u_arg[0]);
      37                 :            :         } else {
      38                 :         14 :                 kernel_ulong_t local_iovcnt = tcp->u_arg[2];
      39                 :         14 :                 kernel_ulong_t remote_iovcnt = tcp->u_arg[4];
      40                 :         14 :                 kernel_ulong_t flags = tcp->u_arg[5];
      41                 :            : 
      42                 :            :                 /* arg 2: local iov */
      43                 :         14 :                 tprint_iov_upto(tcp, local_iovcnt, tcp->u_arg[1],
      44                 :         14 :                            syserror(tcp) ? IOV_DECODE_ADDR : IOV_DECODE_STR,
      45                 :         14 :                            tcp->u_rval);
      46                 :            :                 /* arg 3: local iovcnt */
      47                 :         14 :                 tprintf(", %" PRI_klu ", ", local_iovcnt);
      48                 :            :                 /* arg 4: remote iov */
      49                 :         14 :                 tprint_iov(tcp, remote_iovcnt, tcp->u_arg[3],
      50                 :            :                            IOV_DECODE_ADDR);
      51                 :            :                 /* arg 5: remote iovcnt */
      52                 :            :                 /* arg 6: flags */
      53                 :         14 :                 tprintf(", %" PRI_klu ", %" PRI_klu, remote_iovcnt, flags);
      54                 :            :         }
      55                 :         28 :         return 0;
      56                 :            : }
      57                 :            : 
      58                 :         14 : SYS_FUNC(process_vm_writev)
      59                 :            : {
      60                 :         14 :         kernel_ulong_t local_iovcnt = tcp->u_arg[2];
      61                 :         14 :         kernel_ulong_t remote_iovcnt = tcp->u_arg[4];
      62                 :         14 :         kernel_ulong_t flags = tcp->u_arg[5];
      63                 :            : 
      64                 :            :         /* arg 1: pid */
      65                 :         14 :         tprintf("%d, ", (int) tcp->u_arg[0]);
      66                 :            :         /* arg 2: local iov */
      67                 :         14 :         tprint_iov(tcp, local_iovcnt, tcp->u_arg[1], IOV_DECODE_STR);
      68                 :            :         /* arg 3: local iovcnt */
      69                 :         14 :         tprintf(", %" PRI_klu ", ", local_iovcnt);
      70                 :            :         /* arg 4: remote iov */
      71                 :         14 :         tprint_iov(tcp, remote_iovcnt, tcp->u_arg[3], IOV_DECODE_ADDR);
      72                 :            :         /* arg 5: remote iovcnt */
      73                 :            :         /* arg 6: flags */
      74                 :         14 :         tprintf(", %" PRI_klu ", %" PRI_klu, remote_iovcnt, flags);
      75                 :            : 
      76                 :         14 :         return RVAL_DECODED;
      77                 :            : }

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