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:

 * Convert the trace builtins to use the growing evsel/evlist
   tracepoint infrastructure, removing several open coded constructs
   like switch like series of strcmp to dispatch events, etc.
   Basically what had already been showcased in 'perf sched'.

 * Add evsel constructor for tracepoints, that uses libtraceevent
   just to parse the /format events file, use it in a new 'perf test'
   to make sure the libtraceevent format parsing regressions can
   be more readily caught.

 * Some strange errors were happening in some builds, but not on the
   next, reported by several people, problem was some parser related
   files, generated during the build, didn't had proper make deps,
   fix from Eric Sandeen.

 * Fix some compiling errors on 32-bit, from Feng Tang.

 * Don't use sscanf extension %as, not available on bionic, reimplementation
   by Irina Tirdea.

 * Fix bfd.h/libbfd detection with recent binutils, from Markus Trippelsdorf.

 * Introduce struct and cache information about the environment where a
   perf.data file was captured, from Namhyung Kim.

 * Fix several error paths in libtraceevent, from Namhyung Kim.

   Print event causing perf_event_open() to fail in 'perf record',
   from Stephane Eranian.

 * New 'kvm' analysis tool, from Xiao Guangrong.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>