NEWS for strace version 4.12

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

* Improvements
  * Implemented simultaneous use of -p option and tracing of a command.
    (addresses Debian bug #549942).
  * Implemented caching of netlink conversations to reduce amount of time
    spent in decoding socket details in -yy mode.
  * Implemented -yy mode decoding of protocol:portid pairs associated with
    netlink socket descriptors.
  * Implemented decoding of copy_file_range, preadv2, and pwritev2 syscalls.
  * Implemented dumping of preadv, preadv2, pwritev, pwritev2, and vmsplice
    syscalls.
  * Implemented decoding of BTRFS_* and UFFDIO_* ioctl commands.
  * Enhanced decoding of BLK*, EVIOC*, RTC_*, and VIDIOC_* ioctl commands.
  * Enhanced decoding of fstatfs, fstatfs64, get_mempolicy, getdents,
    getdents64, getgroups, getpriority, kill, mbind, migrate_pages, mknod,
    mknodat, personality, poll, ppoll, quotactl, rt_sigpending,
    rt_sigqueueinfo, rt_sigtimedwait, rt_tgsigqueueinfo, sched_getaffinity,
    sched_setaffinity, seccomp, set_mempolicy, setgroups, setpriority, statfs,
    statfs64, tgkill, waitid, and xattr family syscalls.
  * Enhanced decoding of getxpid, getxuid, and getxgid syscalls on alpha.
  * Enhanced decoding of pipe syscall on alpha, ia64, mips, sh, and sparc.
  * Added decoding of bind, listen, and setsockopt direct syscalls on sparc.
  * Added decoding of osf_statfs64 and osf_fstatfs64 syscalls on alpha.
  * Added decoding of fadvise64 and fadvise64_64 on s390.
  * Updated lists of AF_*, BPF_MAP_TYPE_*, CLONE_*, EPOLL*, IPV6_*, MADV_*,
    MSG_*, PTRACE_*, SEGV_*, SO_*, SOL_*, *_MAGIC, and quotactl constants.
  * Updated lists of ioctl commands from Linux 4.6.

* Bug fixes
  * Fixed build on arc, metag, nios2, or1k, and tile architectures.
  * Fixed decoding of 32-bit times syscall return value on 64-bit architectures.
  * Fixed decoding of mlock2 syscall on sparc.
  * Fixed decoding of osf_shmat syscall on alpha.
  * Fixed decoding of syscalls unknown to the kernel on s390/s390x.
    (addresses Debian bug #485979 and Fedora bug #1298294).
  * Fixed decoding of preadv syscall in case of short read.
  * Fixed decoding and dumping of readv syscall in case of short read.
  * Fixed dumping of recvmsg and recvmmsg syscalls in case of short read.
  * Fixed decoding of mincore syscall's last argument.
  * Fixed remaining errors in mapping between syscall numbers and numbers
    of syscall arguments.
  * Applied various fixes to strace-graph script.

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:

Anchit Jain
Denys Vlasenko
Dmitry V. Levin
Dr. David Alan Gilbert
Elliott Hughes
Fabien Siron
Fei Jie
Gabriel Laskar
Gleb Fotengauer-Malinovskiy
JayRJoshi
Jeff Mahoney
Katerina Koukiou
Keith Owens
Michael Shigorin
Nahim El Atmani
Zev Weiss
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