Merge tag 'perf-core-for-mingo' 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:
User visible changes:
- Fix segfault using 'perf script --show-mmap-events', affects
only current perf/core. (Adrian Hunter)
- /proc/kcore requires CAP_SYS_RAWIO message too noisy, make it
debug only. (Adrian Hunter)
- Fix Intel PT timestamp handling. (Adrian Hunter)
- Add Intel BTS support, with a call-graph script to show it and
PT in use in a GUI using 'perf script' python scripting with
postgresql and Qt. (Adrian Hunter)
- Add checks for returned EVENT_ERROR type in libtraceevent, fixing
a bug that surfaced on arm64 systems. (Dean Nelson)
- Fallback to using kallsyms when libdw fails to handle a vmlinux file,
that can happen, for instance, when perf is statically linked and
then libdw fails to load libebl_{arch}.so. (Wang Nan)
Infrastructure changes:
- Initialize reference counts in map__clone(). (Arnaldo Carvalho de Melo)
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>