Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git...

Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo:

User visible changes:

  - Add --range option to show a variable's location range in 'perf probe',
    helping in collecting variables in probes when there is a mismatch
    between assembly and source code (He Kuang)

  - Show better error message when failed to find variable in 'perf probe' (He Kuang)

  - Fix 'perf report --thread' handling and document it better (Namhyung Kim)

Infrastructure changes:

  - Fix to get negative exit codes in 'perf test' test routines (He Kuang)

  - Make flex/bison calls honour V=1 (Jiri Olsa)

  - Ignore tail calls to probed functions in 'perf probe' (Naveen N. Rao)

  - Fix refcount expectations in map_group share 'perf test' (Arnaldo Carvalho de Melo)

Build Fixes:

  - Fix 'perf kmem' build due to compiler thinking uninitialized var is
    being accessed (Arnaldo Carvalho de Melo)

  - Provide le16toh if not defined, to fix the libtraceevent build on
    older distros (Arnaldo Carvalho de Melo)

  - Fix 'perf trace' build on older distros by providing some CLOEXEC, NONBLOCK
    defines (Arnaldo Carvalho de Melo)

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>