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perf/urgent fixes:

Browse source 
core:
 
   Arnaldo Carvalho de Melo:
 
   - Allow references to thread objects after__machine_exit(), fixing a bug with
     'perf sched lat' where that happens, i.e. after perf_session__delete() we
     still have references to threads that were in a linked list whose head was
     freed in perf_session__delete(), causing a segfault, fix it.
 
   Jiri Olsa:
 
   - Do not rely on errno values for precise_ip fallback, fixing the default
     use case for 'perf record' on some AMD servers, when no events are specified
     and we try to use "cycles:P", i.e. with the maximum precision level.
 
 BPF:
 
   Song Liu:
 
   - Assign proper ff->ph in perf_event__synthesize_features(), fixing a bug
     when using pipe mode, i.e.  'perf record -o -'.
 
 tools headers:
 
   Arnaldo Carvalho de Melo:
 
   - Sync kvm headers with the kernel sources
 
 perf tests:
 
   Seeteena Thoufeek:
 
   - Fix record+probe_libc_inet_pton.sh for powerpc64, where without the
     debuginfo package for the 'ping' utility we can't resolve its symbols,
     so admit getting "[unknown]" for that backtrace line.
 
 perf python:
 
   Arnaldo Carvalho de Melo:
 
   - Remove -fstack-protector-strong if clang doesn't have it, fixing the build
     with clang on fedora:30, oracleline:7, centos:7.
 
 perf jvmti:
 
   Jiri Olsa:
 
   - Address gcc string overflow warning for strncpy()
 
 build:
 
   Arnaldo Carvalho de Melo:
 
   - Check if gettid() is available before providing helper, as recent
     versions of glibc started to provide gettid().
 
 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-urgent-for-mingo-5.3-20190708-2' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core

Pull perf/urgent fixes from Arnaldo Carvalho de Melo:

core:

  Arnaldo Carvalho de Melo:

  - Allow references to thread objects after__machine_exit(), fixing a bug with
    'perf sched lat' where that happens, i.e. after perf_session__delete() we
    still have references to threads that were in a linked list whose head was
    freed in perf_session__delete(), causing a segfault, fix it.

  Jiri Olsa:

  - Do not rely on errno values for precise_ip fallback, fixing the default
    use case for 'perf record' on some AMD servers, when no events are specified
    and we try to use "cycles:P", i.e. with the maximum precision level.

BPF:

  Song Liu:

  - Assign proper ff->ph in perf_event__synthesize_features(), fixing a bug
    when using pipe mode, i.e.  'perf record -o -'.

tools headers:

  Arnaldo Carvalho de Melo:

  - Sync kvm headers with the kernel sources

perf tests:

  Seeteena Thoufeek:

  - Fix record+probe_libc_inet_pton.sh for powerpc64, where without the
    debuginfo package for the 'ping' utility we can't resolve its symbols,
    so admit getting "[unknown]" for that backtrace line.

perf python:

  Arnaldo Carvalho de Melo:

  - Remove -fstack-protector-strong if clang doesn't have it, fixing the build
    with clang on fedora:30, oracleline:7, centos:7.

perf jvmti:

  Jiri Olsa:

  - Address gcc string overflow warning for strncpy()

build:

  Arnaldo Carvalho de Melo:

  - Check if gettid() is available before providing helper, as recent
    versions of glibc started to provide gettid().

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Ingo Molnar 2019-07-09 13:22:03 +02:00
commit d1d59b8179
8 changed files with 90 additions and 30 deletions
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