On 05/15/2016 08:49 AM, Masami Hiramatsu wrote:
Hi,

Here is the 8th version of the patchset for probe-cache and
initial SDT support.

The previous version is here; https://lkml.org/lkml/2016/5/11/446

This version I droped the second patch in v7 because it may
involves unintended behavior change and we'd better discuss it
out of this series. I also added comments why we can't use
access(R_OK) for /proc/kcore.

Hemant, could you review and test this series so that we can
proceed to your patch depending on this?

So, apart from the two issues which I mentioned in
the individual patches, it seems fine.

However, I think we will need a bit detailed documentation for the
probe cache feature as well as for the SDT support, given that we
have different commands to add {probe,sdt} events for a binary
and use them. I will write that that doc up based on your next
version.


Thank you,

---

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

Masami Hiramatsu (15):
       perf buildid: Introduce DSO__NAME_KALLSYMS and DSO__NAME_KCORE
       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              |    2
  tools/perf/util/build-id.c              |  295 ++++++++++++++++--
  tools/perf/util/build-id.h              |    8
  tools/perf/util/dso.h                   |    5
  tools/perf/util/machine.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 +++
  tools/perf/util/symbol-elf.c            |  252 ++++++++++++++++
  tools/perf/util/symbol.c                |   73 ++---
  tools/perf/util/symbol.h                |   25 ++
  18 files changed, 1719 insertions(+), 138 deletions(-)

--
Masami Hiramatsu


--
Thanks,
Hemant Kumar

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