[PATCH 00/26] perf/core improvements and fixes

[Arnaldo Carvalho de Melo <acme@kernel.org>]

Hi Ingo,

	Please consider pulling, this is on top of the perf-urgent-for-mingo
branch I sent you today.

- Arnaldo

The following changes since commit 3f416f22d1e21709a631189ba169f76fd267b374:

  perf stat: Do not clean event's private stats (2016-01-26 11:15:11 -0300)

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 5ac76283b32b116c58e362e99542182ddcfc8262:

  perf cpumap: Auto initialize cpu__max_{node,cpu} (2016-01-26 16:08:36 -0300)

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

User visible:

- Rename the "colors.code" ~/.perfconfig variable to "colors.jump_arrows",
  as it controls just the that UI element in the annotate browser (Taeung Song)

- Avoid trying to read ELF symtabs from device files, noticed while doing
  memory profiling work (Jiri Olsa)

- Improve context detection when offering options in the hists browser,
  i.e.  some options don't make sense when the browser is not working with
  a perf.data file ('perf top' mode), only in 'perf report' mode, like
  scripting (Namhyung Kim)

Infrastructure:

- Elliminate duplication in the hists browser filter functions, getting the
  common part into a function that receives callbacks for filtering by
  DSO, thread, etc (Namhyung Kim)

- Fix misleadingly indented assignment, found using
  gcc6 -Wmisleading-indentation (Markus Trippelsdorf)

- Handle LLVM relocation oddities in libbpf, introducing a 'perf test' that
  detects such problems and then fixing the problem, so that the test now
  passes (Wang Nan)

- More improvements to the build infrastructure to allow reusing the
  feature detection facilities (Wang Nan)

- Auto initialize the globals needed by cpu__max_{cpu,node}() routines
  (Arnaldo Carvalho de Melo)

Documentation:

- Document the perf sysctls in Documentation/sysctl/kernel.txt (Ben Hutchings)

- Document a bunch more ~/.perfconfig knobs (Taeung Song)

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

----------------------------------------------------------------
Arnaldo Carvalho de Melo (3):
      perf machine: Introduce machine__find_kernel_symbol_by_name()
      perf test: Fixup aliases checking in the 'vmlinux matches kallsyms' test
      perf cpumap: Auto initialize cpu__max_{node,cpu}

Ben Hutchings (1):
      perf tools: Document the perf sysctls

Jiri Olsa (2):
      perf symbols: Do not read symbols/data from device files
      perf stat: Making several helper functions static

Markus Trippelsdorf (1):
      perf pmu: Fix misleadingly indented assignment (whitespace)

Namhyung Kim (9):
      perf hists: Remove parent filter check in DSO filter function
      perf hists: Cleanup filtering functions
      perf sort: Provide a way to find out if per-thread bucketing is in place
      perf hists browser: Only 'Zoom into thread' only when sort order has 'pid'
      perf hists browser: Only offer symbol scripting when a symbol is under the cursor
      perf hists browser: Offer 'Zoom into DSO'/'Map details' only when sort order has 'dso'
      perf hists browser: Be a bit more strict about presenting CPU socket zoom
      perf hists browser: Offer non-symbol specific menu options for --sort without 'sym'
      perf hists browser: Skip scripting when perf.data file not available

Taeung Song (6):
      perf annotate: Rename 'colors.code' to 'colors.jump_arrows'
      perf config: Document variables for 'colors' section in man page
      perf config: Document variables for 'tui' and 'gtk' sections in man page
      perf config: Document 'buildid.dir' variable in man page
      perf config: Document variables for 'annotate' section in man page
      perf config: Document 'hist.percentage' variable in man page

Wang Nan (4):
      perf test: Add libbpf relocation checker
      perf bpf: Check relocation target section
      tools build: Allow subprojects select all feature checkers
      perf build: Select all feature checkers for feature-dump

 Documentation/sysctl/kernel.txt               |  13 ++
 tools/build/Makefile.feature                  |  21 ++-
 tools/lib/bpf/libbpf.c                        |  34 +++--
 tools/perf/Documentation/perf-config.txt      | 200 +++++++++++++++++++++++++-
 tools/perf/Documentation/perfconfig.example   |   2 +-
 tools/perf/Makefile.perf                      |  11 +-
 tools/perf/tests/.gitignore                   |   1 +
 tools/perf/tests/Build                        |   9 +-
 tools/perf/tests/bpf-script-test-relocation.c |  50 +++++++
 tools/perf/tests/bpf.c                        |  26 +++-
 tools/perf/tests/llvm.c                       |  17 ++-
 tools/perf/tests/llvm.h                       |   5 +-
 tools/perf/tests/vmlinux-kallsyms.c           |  24 +---
 tools/perf/ui/browser.c                       |   4 +-
 tools/perf/ui/browser.h                       |   2 +-
 tools/perf/ui/browsers/annotate.c             |   2 +-
 tools/perf/ui/browsers/hists.c                |  38 ++---
 tools/perf/util/cpumap.c                      |  30 ++++
 tools/perf/util/cpumap.h                      |  32 +----
 tools/perf/util/dso.c                         |   5 +
 tools/perf/util/evsel.c                       |  15 +-
 tools/perf/util/hist.c                        |  92 ++++--------
 tools/perf/util/machine.h                     |  10 ++
 tools/perf/util/pmu.c                         |   2 +-
 tools/perf/util/sort.c                        |   3 +
 tools/perf/util/sort.h                        |   2 +
 tools/perf/util/stat.c                        |  14 +-
 tools/perf/util/stat.h                        |  10 --
 tools/perf/util/symbol.c                      |   6 +-
 tools/perf/util/util.c                        |  10 ++
 tools/perf/util/util.h                        |   1 +
 31 files changed, 507 insertions(+), 184 deletions(-)
 create mode 100644 tools/perf/tests/bpf-script-test-relocation.c