[PATCH 00/54] perf tools: Bugfix, BPF improvements and overwrite ring buffer support

[Wang Nan]

Hi Arnaldo,

The following changes since commit 89fee59b504f86925894fcc9ba79d5c933842f93:

  perf tools: handle spaces in file names obtained from /proc/pid/maps (2016-02-05 09:39:56 -0300)

are available in the git repository at:

  https://git.kernel.org/pub/scm/linux/kernel/git/pi3orama/linux.git tags/perf-core-for-acme

for you to fetch changes up to f9c0effb2643da8f7712936df46444e260b87dc1:

  perf tools: Don't warn about out of order event if write_backward is used (2016-02-05 13:44:29 +0000)

----------------------------------------------------------------
perf improvements:

 - Code clean: based on Arnaldo's suggestion.

 - Remove '-e evt=cycles' symtax. Enforce existing 'cycles/name=evt/'
   syntax.

 - Forbid improper config terms passing to 'perf stat'. i.e. 'perf stat -e cycles/no-inherit/ ...'

Signed-off-by: Wang Nan <wangnan0@xxxxxxxxxx>

----------------------------------------------------------------
Wang Nan (54):
      perf tools: Fix dangling pointers in parse_events__free_terms
      perf tools: Fix symbols searching for offline module in buildid-cache
      perf tools: Record text offset in dso to calculate objdump address
      perf tools: Adjust symbol for shared objects
      perf data: Fix releasing event_class
      perf tools: Add API to config maps in bpf object
      perf tools: Enable BPF object configure syntax
      perf record: Apply config to BPF objects before recording
      perf tools: Enable passing event to BPF object
      perf stat: Forbid user passing improper config terms
      perf tools: Rename and move pmu_event_name to get_config_name
      perf tools: Enable config raw and numeric events
      perf tools: Enable config and setting names for legacy cache events
      perf tools: Support setting different slots in a BPF map separately
      perf tools: Enable indices setting syntax for BPF maps
      perf tools: Pass tracepoint options to BPF script
      perf tools: Introduce bpf-output event
      perf data: Support converting data from bpf_perf_event_output()
      perf core: Introduce new ioctl options to pause and resume ring buffer
      perf core: Set event's default overflow_handler
      perf core: Prepare writing into ring buffer from end
      perf core: Add backward attribute to perf event
      perf core: Reduce perf event output overhead by new overflow handler
      perf tools: Only validate is_pos for tracking evsels
      perf tools: Print write_backward value in perf_event_attr__fprintf
      perf tools: Make ordered_events reusable
      perf record: Extract synthesize code to record__synthesize()
      perf tools: Add perf_data_file__switch() helper
      perf record: Turns auxtrace_snapshot_enable into 3 states
      perf record: Introduce record__finish_output() to finish a perf.data
      perf record: Add '--timestamp-filename' option to append timestamp to output filename
      perf record: Split output into multiple files via '--switch-output'
      perf record: Force enable --timestamp-filename when --switch-output is provided
      perf record: Disable buildid cache options by default in switch output mode
      perf record: Re-synthesize tracking events after output switching
      perf record: Generate tracking events for process forked by perf
      perf record: Ensure return non-zero rc when mmap fail
      perf record: Prevent reading invalid data in record__mmap_read
      perf tools: Add evlist channel helpers
      perf tools: Automatically add new channel according to evlist
      perf tools: Operate multiple channels
      perf tools: Squash overwrite setting into channel
      perf record: Don't read from and poll overwrite channel
      perf record: Don't poll on overwrite channel
      perf tools: Detect avalibility of write_backward
      perf tools: Enable overwrite settings
      perf tools: Set write_backward attribut bit for overwrite events
      perf tools: Record fd into perf_mmap
      perf tools: Add API to pause a channel
      perf record: Toggle overwrite ring buffer for reading
      perf record: Rename variable to make code clear
      perf record: Read from backward ring buffer
      perf record: Allow generate tracking events at the end of output
      perf tools: Don't warn about out of order event if write_backward is used

 include/linux/perf_event.h        |  22 +-
 include/uapi/linux/perf_event.h   |   4 +-
 kernel/events/core.c              |  73 +++-
 kernel/events/internal.h          |  11 +
 kernel/events/ring_buffer.c       |  63 +++-
 tools/perf/builtin-record.c       | 598 ++++++++++++++++++++++++++-----
 tools/perf/builtin-stat.c         |   1 +
 tools/perf/perf.h                 |   2 +
 tools/perf/tests/bpf.c            |   2 +-
 tools/perf/util/bpf-loader.c      | 719 ++++++++++++++++++++++++++++++++++++++
 tools/perf/util/bpf-loader.h      |  59 ++++
 tools/perf/util/build-id.c        |  44 +++
 tools/perf/util/build-id.h        |   1 +
 tools/perf/util/data-convert-bt.c | 130 ++++++-
 tools/perf/util/data.c            |  36 ++
 tools/perf/util/data.h            |  11 +-
 tools/perf/util/dso.h             |   1 +
 tools/perf/util/evlist.c          | 355 ++++++++++++++++---
 tools/perf/util/evlist.h          |  70 +++-
 tools/perf/util/evsel.c           |  23 ++
 tools/perf/util/evsel.h           |  11 +
 tools/perf/util/map.c             |  14 +
 tools/perf/util/ordered-events.c  |   5 +
 tools/perf/util/parse-events.c    | 267 ++++++++++++--
 tools/perf/util/parse-events.h    |  28 +-
 tools/perf/util/parse-events.l    |  18 +-
 tools/perf/util/parse-events.y    | 134 ++++++-
 tools/perf/util/record.c          |  11 +
 tools/perf/util/session.c         |  22 +-
 tools/perf/util/symbol-elf.c      |  25 +-
 tools/perf/util/symbol.c          |   4 +
 31 files changed, 2532 insertions(+), 232 deletions(-)

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1.8.3.4