[PATCH 00/48] perf tools: Bugfix, BPF improvements and overwrite ring buffer support

[Wang Nan]

Hi Arnaldo,
   I change all 'maps:' to 'map:' in examples in commit messages and
rebase this patch set onto your newest perf/core.

The following changes since commit 9dd130f324b9ba2c7cf9292d5addb1aef100e751:

  perf tools: Remove duplicate typedef config_term_func_t definition (2016-02-19 19:51:13 -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 84f9a58d51acfc4d1677fc24dbc13c07f60d7b7d:

  perf tools: Don't warn about out of order event if write_backward is used (2016-02-22 08:58:48 +0000)

----------------------------------------------------------------
Change 'maps:' to 'map:' in examples in commit messages.

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

----------------------------------------------------------------
Wang Nan (48):
      perf tools: Record text offset in dso to calculate objdump address
      perf tools: Adjust symbol for shared objects
      perf bpf: Add API to set values to map entries in a 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 tools: Support setting different slots in a BPF map separately
      perf tools: Enable indices setting syntax for BPF map
      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 data: Explicitly set byte order for integer types
      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/perf.h                 |   2 +
 tools/perf/tests/bpf.c            |   2 +-
 tools/perf/util/bpf-loader.c      | 718 ++++++++++++++++++++++++++++++++++++++
 tools/perf/util/bpf-loader.h      |  59 ++++
 tools/perf/util/data-convert-bt.c | 118 ++++++-
 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    | 136 +++++++-
 tools/perf/util/parse-events.h    |  19 +-
 tools/perf/util/parse-events.l    |  18 +-
 tools/perf/util/parse-events.y    |  95 ++++-
 tools/perf/util/record.c          |  11 +
 tools/perf/util/session.c         |  22 +-
 tools/perf/util/symbol-elf.c      |  25 +-
 27 files changed, 2327 insertions(+), 195 deletions(-)