Noteworthy changes in strace 5.5 (2020-02-06)

• Improvements

  • Added -e trace=%creds option for tracing syscalls related to process
    credentials.
  • Enhanced decoding of arch_prctl, keyctl, io_uring_register, io_uring_setup,
    and perf_event_open syscalls.
  • Enhanced decoding of BPF_PROG_LOAD bpf syscall command.
  • Updated decoding of clone3 syscall to match Linux 5.5.
  • Implemented decoding of TCA_ACT_FLAGS and TCA_STATS_PKT64 netlink
    attributes.
  • Updated lists of AUDIT_*, BPF_*, CLONE_*, KEY_*, KVM_*, PPC_PTRACE_*,
    SCTP_*, STATX_*, TIPC_*, V4L2_*, and *_MAGIC constants.
  • Updated lists of ioctl commands from Linux 5.5.
  • Enhanced manual page and strace --help output.

• Bug fixes

  • Fixed stack trace printing for early syscalls when strace is configured
    to use libdw backend for stack tracing (addresses Fedora bug #1788636).
  • Fixed stack trace caching when --seccomp-bpf option is specified.
  • Fixed potentially unaligned access in decoder of SO_TIMESTAMP*_NEW
    control messages.
  • Fixed decoding of NDA_LLADDR netlink neighbor table attribute.
  • Fixed build of mpers support when CFLAGS contains -flto.
  • Fixed build on no-MMU architectures.
  • Fixed build with glibc-2.31 and Linux kernel headers < 5.3.
  • Fixed tests for glibc-2.31.

Contributors

This release was made possible by the contributions of many people.
The maintainers are grateful to everyone who has contributed
changes or bug reports. These include:

• Andreas Schwab
• Andrey Zax
• Baruch Siach
• Chunmei Xu
• Dmitry V. Levin
• Eugene Syromyatnikov
• Gleb Fotengauer-Malinovskiy
• Jamal Hadi Salim
• Khem Raj
• Paul Chaignon
• Pavel Zhukov
• Quentin Monnet
• Rich Felker
• Thomas Deutschmann
• Vineet Gupta
• Vladimir D. Seleznev

Please refer to the CREDITS file for the full list of strace contributors.

Downloads

Please ignore so called "Source code" links provided by github, they are useless.