[PATCH perf/core v7 00/21] perf-probe --cache and SDT support

[Masami Hiramatsu <mhiramat@kernel.org>]

Hi,

Here is the 7th version of the patchset for probe-cache and 
initial SDT support.

The previous version is here; https://lkml.org/lkml/2116/4/29/358

This version add some bugfixes and cleanup patches. Also, tested
by using runtests (https://github.com/mhiramat/runtests) which found
several bugs in previous version.
(I've added test.d/buildid-cache/*.tc, test.d/probe/cache*.tc and
 test.d/probe/sdt.tc for this series)

Changes in v7:
 - [1/21]-[5/21], [7/21] Newly added for bugfix and cleanup.
 - [6/21] Remove unneeded local strlist.
 - [8/21] Move kallsyms buildid related code into build-id.c
    (as build_id_cache__kallsyms_path).
 - [11/21] Remove the top '/' from binary name if it is not a regular file.
 - [16/21] Fix a bug to return an error if no SDT/cached events found in cache.
 - [18/21] Validate build-id via sysfs if it is for kallsyms,
 - [19/21] Continue to search caches if a build-id cache has no probe cache.
 - [19/21] Make probe_cache__open() to accept DSO__NAME_KALLSYMS for kernel.
 - [19/21] Fix to add probes correctly when a wildcard matchs both of
    uprobes and kprobes.
 - [21/21] as Brendan suggested, special support for "sdt_" prefix
      (treat it as same as "%sdt_" )


Thank you,

---

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

Masami Hiramatsu (20):
      tools/perf: Fix lsdir to set errno correctly
      perf buildid: Fix to set correct dso name for kallsyms
      perf buildid: Introduce DSO__NAME_KALLSYMS and DSO__NAME_KCORE
      perf: Use SBUILD_ID_SIZE macro instead of BUILD_ID_SIZE macro
      perf symbol: Use lsdir for search in kcore cache directory
      perf-buildid-cache: Use lsdir for looking up buildid caches
      perf symbol: Cleanup the code flow of dso__find_kallsyms
      perf-buildid-cache: Use path/to/bin/buildid/elf instead of path/to/bin/buildid
      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 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
      perf probe: Support a special SDT probe format


 tools/perf/Documentation/perf-probe.txt            |   26 +
 tools/perf/builtin-buildid-cache.c                 |    8 
 tools/perf/builtin-list.c                          |    4 
 tools/perf/builtin-probe.c                         |   30 +
 tools/perf/util/annotate.c                         |    4 
 tools/perf/util/build-id.c                         |  334 +++++++++++--
 tools/perf/util/build-id.h                         |    8 
 tools/perf/util/dso.c                              |    4 
 tools/perf/util/dso.h                              |    5 
 tools/perf/util/header.c                           |    2 
 tools/perf/util/machine.c                          |    2 
 tools/perf/util/map.c                              |    2 
 tools/perf/util/parse-events.c                     |   83 +++
 tools/perf/util/parse-events.h                     |    2 
 tools/perf/util/probe-event.c                      |  492 +++++++++++++++++---
 tools/perf/util/probe-event.h                      |    7 
 tools/perf/util/probe-file.c                       |  502 ++++++++++++++++++++
 tools/perf/util/probe-file.h                       |   41 ++
 .../util/scripting-engines/trace-event-python.c    |    2 
 tools/perf/util/symbol-elf.c                       |  252 ++++++++++
 tools/perf/util/symbol.c                           |   93 ++--
 tools/perf/util/symbol.h                           |   25 +
 tools/perf/util/util.c                             |    2 
 23 files changed, 1743 insertions(+), 187 deletions(-)

--
Masami Hiramatsu