From: Ingo Molnar Date: Sat, 1 Apr 2017 10:43:40 +0000 (+0200) Subject: Merge tag 'perf-core-for-mingo-4.12-20170331' of git://git.kernel.org/pub/scm/linux... X-Git-Tag: v4.12-rc1~152^2~19 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=fcc309e618c9e9ac4ede010d87522b0689549658;p=karo-tx-linux.git Merge tag 'perf-core-for-mingo-4.12-20170331' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo: New features: - Beautify the statx syscall arguments in 'perf trace' (Arnaldo Carvalho de Melo) e.g.: System wide strace like session: # trace -e statx 16612.967 ( 0.028 ms): statx/4562 statx(dfd: CWD, filename: /tmp/statx, flags: SYMLINK_NOFOLLOW, mask: TYPE|MODE|NLINK|UID|GID|ATIME|MTIME|CTIME|INO|SIZE|BLOCKS|BTIME, buffer: 0x7ffef195d660) = 0 36050.891 ( 0.007 ms): statx/4576 statx(dfd: CWD, filename: /etc/passwd, flags: SYMLINK_NOFOLLOW|STATX_DONT_SYNC, mask: BTIME, buffer: 0x7ffda9bf50f0) = 0 ^C# User visible changes: - Handle unpaired raw_syscalls:sys_exit events in 'perf trace', i.e. we shouldn't try to calculate duration or print the timestamp for a missing matching raw_syscalls:sys_enter (Arnaldo Carvalho de Melo) - Do not print "cycles: 0" in perf report LBR lines in platforms not supporting 'cycles', such as Intel's Broadwell (Jin Yao) - Handle missing $HOME env var (Jiri Olsa) - Map 8-bit registers (al, bl, etc), not supported in uprobes_events, to the next best thing (ax, bx, etc) supported (Ravi Bangoria) Signed-off-by: Arnaldo Carvalho de Melo Signed-off-by: Ingo Molnar --- fcc309e618c9e9ac4ede010d87522b0689549658