linux-kernel - [GIT PULL 00/16] perf/core improvements and fixes

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Message-Id: <1450115081-22962-1-git-send-email-acme@kernel.org>
Date:	Mon, 14 Dec 2015 14:44:25 -0300
From:	Arnaldo Carvalho de Melo <acme@...nel.org>
To:	Ingo Molnar <mingo@...nel.org>
Cc:	linux-kernel@...r.kernel.org,
	Arnaldo Carvalho de Melo <acme@...nel.org>,
	Adrian Hunter <adrian.hunter@...el.com>,
	Alexei Starovoitov <ast@...nel.org>,
	Andi Kleen <ak@...ux.intel.com>,
	David Ahern <dsahern@...il.com>, He Kuang <hekuang@...wei.com>,
	Jiri Olsa <jolsa@...hat.com>,
	Josh Poimboeuf <jpoimboe@...hat.com>,
	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>,
	Namhyung Kim <namhyung@...nel.org>,
	Peter Zijlstra <peterz@...radead.org>, pi3orama@....com,
	Wang Nan <wangnan0@...wei.com>, Zefan Li <lizefan@...wei.com>,
	Arnaldo Carvalho de Melo <acme@...hat.com>
Subject: [GIT PULL 00/16] perf/core improvements and fixes

Hi Ingo,

	Please consider pulling,

- Arnaldo

The following changes since commit 0d76ded582c178d3cca55c9112eceb5b0f12f558:

  Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2015-12-14 09:31:39 +0100)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo

for you to fetch changes up to 7efe0e034c713716060bc7794c7e332589980c70:

  perf record: Support custom vmlinux path (2015-12-14 13:04:12 -0300)

----------------------------------------------------------------
perf/core improvements and fixes:

User visible:

- Make command line options always available, even when they
  depend on some feature being enabled, warning the user about
  use of such options (Wang Nan)

- Support --vmlinux in perf record, useful, so far, for eBPF,
  where we will set up events that will be used in the record
  session (He Kuang)

- Automatically disable collecting branch flags and cycles with
  --call-graph lbr. This allows avoiding a bunch of extra MSR
  reads in the PMI on Skylake.  (Andi Kleen)

Infrastructure:

- Dump the stack when a 'perf test -v ' entry segfaults, so far we
  would have to run it under gdb with 'set follow-fork-mode child'
  set to get a proper backtrace (Arnaldo Carvalho de Melo)

- Initialize the refcnt in 'struct thread' to 1 and fixup its
  users accordingly, so that we try to have the same refcount
  model accross the perf codebase (Arnaldo Carvalho de Melo)

- More prep work for moving the subcmd infrastructure out of
  tools/perf/ and into tools/lib/subcmd/ to be used by other
  tools/ living utilities (Josh Poimboeuf)

- Fix 'perf test' hist testcases when kptr_restrict is on (Namhyung Kim)

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

----------------------------------------------------------------
Andi Kleen (1):
      perf evsel: Disable branch flags/cycles for --callgraph lbr

Arnaldo Carvalho de Melo (3):
      perf tools: Use same signal handling strategy as 'record'
      perf test: Dump the stack when test segfaults when in verbose mode
      perf thread: Fix reference count initial state

He Kuang (1):
      perf record: Support custom vmlinux path

Josh Poimboeuf (9):
      perf build: Remove unnecessary line in Makefile.feature
      perf test: Add Build file to dependencies for llvm-src-*.c
      perf test: Remove tarpkg at end of test
      perf build: Fix 'make clean'
      perf build: Rename LIB_PATH -> API_PATH
      perf tools: Create pager.h
      perf tools: Remove check for unused PERF_PAGER_IN_USE
      perf tools: Move help_unknown_cmd() to its own file
      perf tools: Convert parse-options.c internal functions to static

Namhyung Kim (1):
      perf test: Fix hist testcases when kptr_restrict is on

Wang Nan (1):
      perf tools: Make options always available, even if required libs not linked

 tools/build/Makefile.feature             |   1 -
 tools/perf/Documentation/perf-record.txt |  10 ++-
 tools/perf/Makefile.perf                 |  15 ++--
 tools/perf/builtin-probe.c               |  15 +++-
 tools/perf/builtin-record.c              |  25 +++++-
 tools/perf/tests/Build                   |   6 +-
 tools/perf/tests/builtin-test.c          |   3 +
 tools/perf/tests/hists_common.c          |   5 +-
 tools/perf/tests/make                    |   3 +-
 tools/perf/util/Build                    |   1 +
 tools/perf/util/cache.h                  |   5 +-
 tools/perf/util/evsel.c                  |  14 +++-
 tools/perf/util/help-unknown-cmd.c       | 103 +++++++++++++++++++++++
 tools/perf/util/help-unknown-cmd.h       |   0
 tools/perf/util/help.c                   | 107 +-----------------------
 tools/perf/util/help.h                   |   3 +
 tools/perf/util/intel-pt.c               |   4 +-
 tools/perf/util/machine.c                |  19 +++--
 tools/perf/util/pager.c                  |   8 +-
 tools/perf/util/pager.h                  |   7 ++
 tools/perf/util/parse-options.c          | 136 +++++++++++++++++++++++++++----
 tools/perf/util/parse-options.h          |  14 ++--
 tools/perf/util/thread.c                 |  10 ++-
 tools/perf/util/util.c                   |   3 +-
 24 files changed, 341 insertions(+), 176 deletions(-)
 create mode 100644 tools/perf/util/help-unknown-cmd.c
 create mode 100644 tools/perf/util/help-unknown-cmd.h
 create mode 100644 tools/perf/util/pager.h
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