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SubjectRe: [PATCH perf/core v9 00/16] perf-probe --cache and SDT support
Em Mon, May 30, 2016 at 01:22:52PM -0300, Arnaldo Carvalho de Melo escreveu:
> Em Sun, May 29, 2016 at 12:15:01AM +0900, Masami Hiramatsu escreveu:
> > Hi,
> >
> > Here is the 9th version of the patchset for probe-cache and
> > initial SDT support.
>
> Ok, for completeness sake: Where does one learn more about "SDT", I
> couldn't find a description of this in this patchkit, /me goes googling
> around...

https://sourceware.org/gdb/onlinedocs/gdb/Static-Probe-Points.html

Some lifting of this text, giving credit and checking whatever license
it is under would help, I think.

Mentioning some userland components that have such "Statically Defined
Tracing" markers would also help testers to try it with this patchkit, I
saw just one or two examples here, IIRC with libc and libstdc++.

- Arnaldo

> - Arnaldo
>
> > The previous version is here; https://lkml.org/lkml/2016/5/14/107
> >
> > This version just fixes 2 points according to Hemant's comment,
> > and split out the filename__readable() patch.
> >
> > Changes in v9:
> > - [1/16,2/16] split out the filename__readable()
> > - [7/16] Fix to show which event is deleted.
> > - [12/16] Update list_usage to show sdt option.
> >
> > Thank you,
> >
> > ---
> >
> > Hemant Kumar (1):
> > perf/sdt: ELF support for SDT
> >
> > Masami Hiramatsu (15):
> > perf-symbol: Introduce filename__readable to check readability
> > 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-list.c | 6
> > tools/perf/builtin-probe.c | 30 ++
> > tools/perf/util/build-id.c | 295 ++++++++++++++++--
> > tools/perf/util/build-id.h | 8
> > 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 | 492 +++++++++++++++++++++++++++---
> > tools/perf/util/probe-event.h | 7
> > tools/perf/util/probe-file.c | 504 +++++++++++++++++++++++++++++++
> > tools/perf/util/probe-file.h | 41 +++
> > tools/perf/util/symbol-elf.c | 252 ++++++++++++++++
> > tools/perf/util/symbol.c | 71 ++--
> > tools/perf/util/symbol.h | 22 +
> > 15 files changed, 1712 insertions(+), 132 deletions(-)
> >
> > --
> > Masami Hiramatsu

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