Re: [PATCH] perf inject jit: Ignore memfd mmap events if jitdump present

From: Brian Robbins
Date: Wed Aug 10 2022 - 11:08:56 EST


On Wed, Aug 10, 2022 at 10:03:17AM -0300, Arnaldo Carvalho de Melo wrote:
> Em Wed, Aug 10, 2022 at 10:00:14AM -0300, Arnaldo Carvalho de Melo escreveu:
> > Em Thu, Aug 04, 2022 at 08:22:14AM -0700, Ian Rogers escreveu:
> > > On Tue, Aug 2, 2022 at 11:25 AM Brian Robbins <brianrob@xxxxxxxxxxxxxxxxxxx> wrote:
> > > > Signed-off-by: Brian Robbins <brianrob@xxxxxxxxxxxxxxxxxxx>
> > >
> > > Acked-by: Ian Rogers <irogers@xxxxxxxxxx>
> >
> > CC /tmp/build/perf/util/jitdump.o
> > CC /tmp/build/perf/pmu-events/pmu-events.o
> > LD /tmp/build/perf/pmu-events/pmu-events-in.o
> > util/jitdump.c: In function ‘jit_process’:
> > util/jitdump.c:853:65: error: expected ‘)’ before ‘return’
> > 853 | (strncmp(filename, "/memfd:", 7) == 0))
> > | ^
> > | )
> > 854 | return 1;
> > | ~~~~~~
> > util/jitdump.c:851:20: note: to match this ‘(’
> > 851 | if (jit_has_pid(machine, pid) &&
> > | ^
> > util/jitdump.c:857:9: error: expected expression before ‘}’ token
> > 857 | }
> > | ^
> > make[4]: *** [/var/home/acme/git/perf/tools/build/Makefile.build:96: /tmp/build/perf/util/jitdump.o] Error 1
> > make[4]: *** Waiting for unfinished jobs....
> > make[3]: *** [/var/home/acme/git/perf/tools/build/Makefile.build:139: util] Error 2
> >
> >
> > Trying to fix now.
>
> Trivial, please compile test it...
>
> - Arnaldo
>
> diff --git a/tools/perf/util/jitdump.c b/tools/perf/util/jitdump.c
> index 335a3c61940b7b39..9983d21a5c42d70e 100644
> --- a/tools/perf/util/jitdump.c
> +++ b/tools/perf/util/jitdump.c
> @@ -850,7 +850,7 @@ jit_process(struct perf_session *session,
> */
> if (jit_has_pid(machine, pid) &&
> ((strncmp(filename, "//anon", 6) == 0) ||
> - (strncmp(filename, "/memfd:", 7) == 0))
> + (strncmp(filename, "/memfd:", 7) == 0)))
> return 1;
>
> return 0;

Apologies about that. Fixed this in v2.

--Brian