Merge tag 'perf-core-for-mingo-5.4-20190820' of git://git.kernel.org/pub/scm/linux...

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

callchains:

   Alexey Budankov:

  - Allow collecting LBR together with DWARF callchains, for workloads
    where the userspace stack size collected is not big enough for
    pure DWARF based unwinding.

  - Dump the LBR call stack in 'perf report -D'.

perf top:

  Arnaldo Carvalho de Melo:

  - Show visual cue at start to state that the minimal set of samples
    are being collected prior to sorting/bucketizing/displaying.

CoreSight (ARM hardware tracing):

  Leo Yan:

  - Support sample flags 'insn' and 'insnlen'.

core:

  Adrian Hunter:

  - Add comment for 'idx' member in 'struct perf_sample_id.

tools headers:

  Arnaldo Carvalho de Melo:

  - Synchronize linux/bits.h, which required grabbing a copy of the kernel
    const.h headers and some changes in the ordering of header directories.

  - Sync x86's asm/cpufeatures.h with the with the kernel, no change in
    any of the tools.

libperf:

  Jiri Olsa:

  - Fix arch include paths.

libtraceevent:

  Steven Rostedt (VMware):

  - Fix "robust" test of do_generate_dynamic_list_file.

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