[GIT PULL 00/15] perf/core improvements and fixes

From: Arnaldo Carvalho de Melo
Date: Tue May 10 2016 - 11:16:43 EST


Hi Ingo,

Please consider pulling,

- Arnaldo

The following changes since commit ea7c28518943b26a85d73cd76acd03b71962cb18:

Merge tag 'perf-core-for-mingo-20160506' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2016-05-07 06:49:28 +0200)

are available in the git repository at:

git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-20160510

for you to fetch changes up to 452e84012595d681f254a3a0d733fb0b18ffaf42:

perf tools: Remove xrealloc and ALLOC_GROW (2016-05-10 11:58:27 -0300)

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

User visible:

- Recording 'dwarf' callchains do not need DWARF unwinding support (He Kuang)

- Print recently added perf_event_attr.write_backward bit flag in -vv
verbose mode (Arnaldo Carvalho de Melo)

- Fix incorrect python db-export error message in 'perf script' (Chris Phlipot)

- Fix handling of zero-length symbols (Chris Phlipot)

Andi Kleen (1):
perf stat: Scale values by unit before metrics

Infrastructure:

- Rewrite strbuf not to die(), making tools using it to check its
return value instead (Masami Hiramatsu)

- Support reading from backward ring buffer, add a 'perf test' entry
for it (Wang Nan)

Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>

----------------------------------------------------------------
Andi Kleen (1):
perf stat: Scale values by unit before metrics

Arnaldo Carvalho de Melo (1):
perf evsel: Print state of perf_event_attr.write_backward

Chris Phlipot (2):
perf script: Fix incorrect python db-export error message
perf symbols: Fix handling of zero-length symbols.

He Kuang (1):
perf callchain: Recording 'dwarf' callchains do not need DWARF unwinding support

Masami Hiramatsu (8):
perf tools: Rewrite strbuf not to die()
perf probe: Check the return value of strbuf APIs
perf help: Make check_emacsclient_version to check strbuf APIs
perf tools: Make alias handler to check return value of strbuf
perf header: Make topology checkers to check return value of strbuf
perf pmu: Make pmu_formats_string to check return value of strbuf
perf help: Do not use ALLOC_GROW in add_cmd_list
perf tools: Remove xrealloc and ALLOC_GROW

Wang Nan (2):
perf tools: Support reading from backward ring buffer
perf tests: Add test to check backward ring buffer

tools/perf/builtin-help.c | 18 +--
tools/perf/perf.c | 8 +-
tools/perf/tests/Build | 1 +
tools/perf/tests/backward-ring-buffer.c | 151 +++++++++++++++++++++
tools/perf/tests/builtin-test.c | 4 +
tools/perf/tests/tests.h | 1 +
tools/perf/util/Build | 1 -
tools/perf/util/cache.h | 19 ---
tools/perf/util/dwarf-aux.c | 52 ++++---
tools/perf/util/evlist.c | 50 +++++++
tools/perf/util/evlist.h | 4 +
tools/perf/util/evsel.c | 1 +
tools/perf/util/header.c | 31 +++--
tools/perf/util/help-unknown-cmd.c | 30 ++--
tools/perf/util/pmu.c | 10 +-
tools/perf/util/probe-event.c | 143 +++++++++++--------
tools/perf/util/probe-finder.c | 30 ++--
tools/perf/util/quote.c | 36 ++---
tools/perf/util/quote.h | 2 +-
.../util/scripting-engines/trace-event-python.c | 2 +-
tools/perf/util/stat.c | 4 +-
tools/perf/util/strbuf.c | 93 +++++++++----
tools/perf/util/strbuf.h | 25 ++--
tools/perf/util/symbol.c | 2 +-
tools/perf/util/util.c | 2 -
tools/perf/util/util.h | 6 -
tools/perf/util/wrapper.c | 29 ----
27 files changed, 510 insertions(+), 245 deletions(-)
create mode 100644 tools/perf/tests/backward-ring-buffer.c
delete mode 100644 tools/perf/util/wrapper.c