Noteworthy changes in strace 5.11 (2021-02-17)

==============================================

* Improvements
  * Implemented poke injection (--inject=SET:poke_enter= and
    --inject=SET:poke_exit= options).
  * Implemented decoding of epoll_pwait2 syscall introduced in Linux 5.11.
  * Implemented decoding of GPIO_* ioctl commands.
  * Implemented decoding of FS_IOC_FS[GS]ETXATTR, FS_IOC_[GS]ETFLAGS,
    and FS_IOC32_[GS]ETFLAGS ioctl commands.
  * Implemented decoding of SIOCADDMULTI, SIOCDELMULTI, SIOCGIFENCAP,
    SIOCOUTQNSD, SIOCSIFENCAP, and SIOCSIFHWBROADCAST ioctl commands.
  * Implemented decoding of UBI_IOCRPEB and UBI_IOCSPEB ioctl commands.
  * Implemented decoding of V4L2_BUF_TYPE_META_CAPTURE,
    V4L2_BUF_TYPE_META_OUTPUT, and VIDIOC_QUERY_EXT_CTRL ioctl commands.
  * Updated lists of BPF_*, BTRFS_*, CLOSE_RANGE_*, ETH_*, IORING_*, KVM_*,
    PR_*, PTRACE_*, RTA_*, RTAX_*, RTM_*, RTNH_*, SCTP_*, SO_*, SYS_*, UFFD_*,
    and V4L2_* constants.
  * Updated lists of ioctl commands from Linux 5.11.

* Bug fixes
  * Fixed decoding of SIOCGIFINDEX, SIOCBRADDIF, and SIOCBRDELIF ioctl commands.
  * Fixed decoding of FIO[GS]ETOWN, SIOC[GS]PGRP, and SIOCATMARK ioctl commands
    on alpha, mips, sh, and xtensa architectures.
  * Fixed fork--pidns-translation test on sparc and sparc64.
  * Fixed build on hppa with uapi headers from Linux >= 5.10.

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:

* Dmitry V. Levin
* Elvira Khabirova
* Eugene Syromyatnikov
* Gleb Fotengauer-Malinovskiy
* Kent Gibson
* Philippe De Muyter
* Sven Schnelle

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