[PATCH perf/core v4 00/19] perf-probe --cache and SDT support

[Masami Hiramatsu]

Hi,

Here is the 4th version of the patchset for probe-cache and 
initial SDT support which are going to be perf-cache finally.

The previous version is here; https://lkml.org/lkml/2015/8/15/52

This version fixes some bugs and improve wildcard support (
including automatic target binary selection, we don't need
-x option for SDT/pre-cached events any more :) ),
and drops perf-record support currently because it seems more
work on cleanup side.

BTW, since I couldn't find list_dir function in Arnaldo's mail,
so this series still have a patch to add lsdir().

Note that all SDT events have "sdt_" prefix on the provider name,
because of easier to distinguish between other named caches.

TODOs:
 - (perf record) Support SDT event recording directly
 - (perf record) Support @FILE/@BUILDID suffix to record specific SDTs.
 - (perf record) Try to unregister SDT events after record.
 - (ftrace) Support multiple SDTs on single event.

Done:
 - (perf probe) Allow glob matching for pre-cached events.
 - (perf probe) Removes -x option when using pre-cached events.
 - (perf probe) Support @FILE/@BUILDID suffix for pre-cached events.
 - (perf buildid-cache) Fallback to old style buildid-cache.

Thank you,


---

Hemant Kumar (1):
      perf/sdt: ELF support for SDT

Masami Hiramatsu (18):
      perf probe: Use strbuf for making strings
      perf-buildid-cache: Use path/to/bin/buildid/elf instead of path/to/bin/buildid
      perf buildid-cache: Fall back to the old style build-id cache
      perf: Add lsdir to read a directory
      perf-buildid-cache: Use lsdir for looking up buildid caches
      perf-probe: Let probe_file__add_event return 0 if succeeded
      perf probe: Add --cache option to cache the probe definitions
      perf probe: Use cache entry if possible
      perf probe: Show all cached probes
      perf probe: Remove caches when --cache is given
      perf probe: Add group name support
      perf-probe: Set default kprobe group name if it is not given
      perf buildid-cache: Scan and import user SDT events to probe cache
      perf probe: Accept %sdt and %cached event name
      perf-list: Show SDT and pre-cached events
      perf-list: Skip SDTs placed in invalid binaries
      perf probe: Allow wildcard for cached events
      perf probe: Support @BUILDID or @FILE suffix for SDT events


 tools/perf/Documentation/perf-probe.txt |   24 +
 tools/perf/builtin-list.c               |    4 
 tools/perf/builtin-probe.c              |   30 +
 tools/perf/util/build-id.c              |  278 ++++++++++--
 tools/perf/util/build-id.h              |    6 
 tools/perf/util/dso.h                   |    5 
 tools/perf/util/parse-events.c          |   83 ++++
 tools/perf/util/parse-events.h          |    2 
 tools/perf/util/probe-event.c           |  692 ++++++++++++++++++++++---------
 tools/perf/util/probe-event.h           |    9 
 tools/perf/util/probe-file.c            |  495 ++++++++++++++++++++++
 tools/perf/util/probe-file.h            |   32 +
 tools/perf/util/probe-finder.c          |   14 -
 tools/perf/util/symbol-elf.c            |  252 +++++++++++
 tools/perf/util/symbol.c                |   15 -
 tools/perf/util/symbol.h                |   22 +
 tools/perf/util/util.c                  |   34 ++
 tools/perf/util/util.h                  |    4 
 18 files changed, 1725 insertions(+), 276 deletions(-)

--
Masami Hiramatsu