[PATCH 00/46] perf tools: Fix and improvements (bpf and overwrite)

[Wang Nan]

Hi Arnaldo,

The following changes since commit bb109acc4adeae425147ca87b84d312ea40f24f1:

  perf tools: Fix parsing of pmu events with empty list of modifiers (2016-02-25 10:56:21 -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 29b1d94f369d1e7b16416e8944489430073be01d:

  perf tools: Don't warn about out of order event if write_backward is used (2016-02-26 09:11:20 +0000)

----------------------------------------------------------------
 - BPF related: 'perf trace' support bpf-output event

 - perf overwrite support: Code improvements based on Jiri's suggestion

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

----------------------------------------------------------------
Wang Nan (46):
      perf tools: Record text offset in dso to calculate objdump address
      perf tools: Adjust symbol for shared objects
      perf config: Bring perf_default_config to the very beginning at main()
      perf trace: Improve error message when receive non-tracepoint events
      perf tools: Only set filter for tracepoints events
      perf trace: Call bpf__apply_obj_config in 'perf trace'
      perf trace: Print content of 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: Use WARN_ONCE to replace 'if' condition
      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-diff.c          |   2 -
 tools/perf/builtin-help.c          |   2 +-
 tools/perf/builtin-kmem.c          |   4 +-
 tools/perf/builtin-record.c        | 602 +++++++++++++++++++++++++++++++------
 tools/perf/builtin-report.c        |   2 +-
 tools/perf/builtin-top.c           |   4 +-
 tools/perf/builtin-trace.c         |  69 ++++-
 tools/perf/perf.c                  |   2 +
 tools/perf/perf.h                  |   2 +
 tools/perf/tests/llvm.c            |   8 -
 tools/perf/util/color.c            |   5 +-
 tools/perf/util/data-convert-bt.c  | 120 +++++++-
 tools/perf/util/data.c             |  38 +++
 tools/perf/util/data.h             |  11 +-
 tools/perf/util/dso.h              |   1 +
 tools/perf/util/evlist.c           | 342 ++++++++++++++++++---
 tools/perf/util/evlist.h           |  67 ++++-
 tools/perf/util/evsel.c            |  18 ++
 tools/perf/util/evsel.h            |   3 +
 tools/perf/util/help-unknown-cmd.c |   5 +-
 tools/perf/util/map.c              |  14 +
 tools/perf/util/ordered-events.c   |   9 +
 tools/perf/util/ordered-events.h   |   1 +
 tools/perf/util/parse-events.c     |  14 +
 tools/perf/util/parse-events.h     |   2 +
 tools/perf/util/parse-events.l     |   2 +
 tools/perf/util/record.c           |  11 +
 tools/perf/util/session.c          |  28 +-
 tools/perf/util/symbol-elf.c       |  25 +-
 34 files changed, 1385 insertions(+), 201 deletions(-)