strace 4.18 released

[Dmitry V. Levin]

Starting with version 4.13, strace follows the schedule of linux kernel
and new versions of strace are released along with new version of linux
kernel, so strace 4.18 is tagged and uploaded.

This release contains a significantly enhanced netlink parser, thanks
to JingPiao Chen who prepared for merge the most of remaining parts
of the code written by Fabien Siron last year, and wrote some code
and tests as a part of his GSoC 2018 strace project.

$ git tag -v v4.18 2> /dev/null | sed -n '/^$/,$p'

NEWS for strace version 4.18
============================

* Improvements
  * Implemented decoding of SCM_TIMESTAMP* control messages.
  * Implemented decoding of netlink NLMSG_DONE messages.
  * Implemented decoding of netlink generic nlmsg_type and nlmsg_flags.
  * Implemented decoding of NETLINK_AUDIT, NETLINK_NETFILTER, NETLINK_ROUTE,
    NETLINK_SELINUX, NETLINK_SOCK_DIAG, and NETLINK_XFRM message types.
  * Implemented decoding of NETLINK_GENERIC protocol families.
  * Implemented basic protocol specific decoding of AF_INET, AF_INET6,
    AF_NETLINK, AF_PACKET, AF_SMC, and AF_UNIX messages of NETLINK_SOCK_DIAG.
  * Implemented basic decoding of netlink attributes.
  * Implemented basic protocol specific decoding of AF_INET, AF_NETLINK,
    AF_PACKET, AF_SMC, and AF_UNIX netlink attributes of NETLINK_SOCK_DIAG.
  * Implemented decoding of inet_diag_msg, netlink_diag_msg, and unix_diag_msg
    netlink attributes of NETLINK_SOCK_DIAG.
  * Updated lists of ARPHRD_*, KEYCTL_*, NDIAG_SHOW_*, RTM_*, SCM_*, SCTP_*,
    SO_*, V4L2_*, and prctl ARCH_* constants.
  * Updated lists of ioctl commands from Linux 4.12.

* Bug fixes
  * In interactive mode (-I2), those signals that were blocked at startup
    will remain blocked for the whole period of strace execution.
  * strace no longer resets SIGCHLD handler in tracees to the default action.
  * When traced command is terminated by a blocked signal, strace unblocks
    that signal to ensure its own termination with the same signal.
  * Fixed corner cases in decoding of old sigaction syscall.
  * Fixed build with old kernel headers on mips.
  * Fixed build on aarch64 and tile with glibc >= 2.26.
  * Fixed build on arc and nios2.

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
David Robins
Dmitry V. Levin
Eugene Syromyatnikov
Eugeniy Paltsev
Fabien Siron
Gleb Fotengauer-Malinovskiy
JingPiao Chen
Khem Raj
Masatake YAMATO
Miroslav Lichvar
Romain Naour
Victor Krapivensky


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