<h1><a href="https://github.com/strace/strace/releases/tag/v5.5">strace 5.5</a></h1><p style="font-size:small;-webkit-text-size-adjust:none;">Repository: <a href="https://github.com/strace/strace">strace/strace</a> · Tag: <a href="https://github.com/strace/strace/tree/v5.5">v5.5</a> · Commit: <a href="https://github.com/strace/strace/commit/da2fa3bc25816e471e8b4b2a8326cd486bb7ad0f">da2fa3b</a> · Released by: <a href="https://github.com/esyr">esyr</a></p>

<h1>Noteworthy changes in strace 5.5 (2020-02-06)</h1>
<ul>
<li>
<p>Improvements</p>
<ul>
<li>Added <code>-e trace=%creds</code> option for tracing syscalls related to process<br>
credentials.</li>
<li>Enhanced decoding of <code>arch_prctl</code>, <code>keyctl</code>, <code>io_uring_register</code>, <code>io_uring_setup</code>,<br>
and <code>perf_event_open</code> syscalls.</li>
<li>Enhanced decoding of <code>BPF_PROG_LOAD</code> <code>bpf</code> syscall command.</li>
<li>Updated decoding of <code>clone3</code> syscall to match Linux 5.5.</li>
<li>Implemented decoding of <code>TCA_ACT_FLAGS</code> and <code>TCA_STATS_PKT64</code> netlink<br>
attributes.</li>
<li>Updated lists of <code>AUDIT_*</code>, <code>BPF_*</code>, <code>CLONE_*</code>, <code>KEY_*</code>, <code>KVM_*</code>, <code>PPC_PTRACE_*</code>,<br>
<code>SCTP_*</code>, <code>STATX_*</code>, <code>TIPC_*</code>, <code>V4L2_*</code>, and <code>*_MAGIC</code> constants.</li>
<li>Updated lists of ioctl commands from Linux 5.5.</li>
<li>Enhanced manual page and <code>strace --help</code> output.</li>
</ul>
</li>
<li>
<p>Bug fixes</p>
<ul>
<li>Fixed stack trace printing for early syscalls when <code>strace</code> is configured<br>
to use libdw backend for stack tracing (addresses [https://bugzilla.redhat.com/1788636](Fedora bug #1788636)).</li>
<li>Fixed stack trace caching when <code>--seccomp-bpf</code> option is specified.</li>
<li>Fixed potentially unaligned access in decoder of <code>SO_TIMESTAMP*_NEW</code><br>
control messages.</li>
<li>Fixed decoding of <code>NDA_LLADDR</code> netlink neighbor table attribute.</li>
<li>Fixed build of mpers support when <code>CFLAGS</code> contains <code>-flto</code>.</li>
<li>Fixed build on no-MMU architectures.</li>
<li>Fixed build with glibc-2.31 and Linux kernel headers < 5.3.</li>
<li>Fixed tests for glibc-2.31.</li>
</ul>
</li>
</ul>
<h1>Contributors</h1>
<p>This release was made possible by the contributions of many people.<br>
The maintainers are grateful to everyone who has contributed<br>
changes or bug reports.  These include:</p>
<ul>
<li>Andreas Schwab</li>
<li>Andrey Zax</li>
<li>Baruch Siach</li>
<li>Chunmei Xu</li>
<li>Dmitry V. Levin</li>
<li>Eugene Syromyatnikov</li>
<li>Gleb Fotengauer-Malinovskiy</li>
<li>Jamal Hadi Salim</li>
<li>Khem Raj</li>
<li>Paul Chaignon</li>
<li>Pavel Zhukov</li>
<li>Quentin Monnet</li>
<li>Rich Felker</li>
<li>Thomas Deutschmann</li>
<li>Vineet Gupta</li>
<li>Vladimir D. Seleznev</li>
</ul>
<p>Please refer to the CREDITS file for the full list of strace contributors.</p>
<h1>Downloads</h1>
<p><strong>Please ignore so called "Source code" links provided by github, they are useless.</strong></p>

—<p>This release has 4 assets:</p><ul><li>strace-5.5.tar.xz</li><li>strace-5.5.tar.xz.asc</li><li>Source code (zip)</li><li>Source code (tar.gz)</li></ul><p>Visit the <a href="https://github.com/strace/strace/releases/tag/v5.5">release page</a> to download them.</p>

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