Re: [PATCH v5 0/7] perf/sdt: Directly record SDT events with 'perf record'

From: Masami Hiramatsu
Date: Fri Mar 17 2017 - 00:51:29 EST


Hi Ravi,

On Thu, 16 Mar 2017 16:57:52 +0530
Ravi Bangoria <ravi.bangoria@xxxxxxxxxxxxxxxxxx> wrote:

> Hi Masami,
>
> On Thursday 16 March 2017 03:21 PM, Masami Hiramatsu wrote:
> > On Tue, 14 Mar 2017 20:36:51 +0530
> > Ravi Bangoria <ravi.bangoria@xxxxxxxxxxxxxxxxxx> wrote:
> >
> >> Changes in v5:
> >> - Patch 2/7 is new. New option introduced in this patch helps to pass
> >> custome data from builtin-*.c to libperf.
> >>
> >> - All direct callbacks from libelf to builtin-record.c is removed.
> >>
>
> Minor correction.. s/libelf/libperf/
>
> >> - Merged 2nd and 4th patch of v4 into patch 2 of v5.
>
> s/patch 2 of v5/patch 3 of v5/
>
> >>
> >> - Moved all functions from util/probe-file.c to util/probe-event.c
> >> which operates on perf_probe_event.
> >>
> >> - Made free_sdt_list() static as it's only used inside util/probe-event.c.
> >>
> >> - Couple of other changes as Masami has suggested in v4 review.
> > Hi Ravi,
> > Could you also describe which patches are updated? It seems 1/7 is not
> > modified, correct?
>
> Let me list a patch-wise brief changelog.
>
> patch 1/7:- Introduced dummy version of is_sdt_event() which always return false
> if !HAVE_LIBELF_SUPPORT.
>
> patch 2/7: - is new. A new option introduced in this patch helps to passcustom
> data from builtin-*.c to libperf.
>
> patch 3/7: - Removed direct calls from libperf to builtin-record.c which was used
> to prepare record.sdt_event_list. Instead pass list to libperf and let
> libperf manage it.
>
> - Introduce new wrapper func record__parse_events_option() that can
> differentiate between sdt and other events while parsing them in
> perf record.
>
> - Moved all functions from util/probe-file.c to util/probe-event.c
> which operates on perf_probe_event.
>
> - Merged 2nd and 4th patch of v4 into this patch.
>
> - Made free_sdt_list() static as it's only used inside util/probe-event.c.
>
> patch 4/7:- Removed direct calls from libperf to builtin-record.c which was used
> to prepare record.sdt_event_list. Instead pass list to libperf and let
> libperf manage it.
>
> - Moved all functions from util/probe-file.c to util/probe-event.c
> which operates on perf_probe_event.
>
> patch 5/7: No changes
>
> patch 6/7: No changes
>
> patch 7/7: No changes
>
> Let me know if you need more details.

Thanks! that's very helpful for me to review it.


--
Masami Hiramatsu <mhiramat@xxxxxxxxxx>