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| author | Masami Hiramatsu <mhiramat@redhat.com> | 2010-05-19 23:57:42 +0400 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2010-07-06 01:50:27 +0400 |
| commit | b2a3c12b7442247c440f7083d48ef05716753ec1 (patch) | |
| tree | c3a3d0bb442e285979b0dbeecfbf0c04a8b3743e /tools/perf/util/probe-event.h | |
| parent | 73317b954041031249e8968d2e9023ff4e960d99 (diff) | |
| download | linux-b2a3c12b7442247c440f7083d48ef05716753ec1.tar.xz | |
perf probe: Support tracing an entry of array
Add array-entry tracing support to perf probe. This enables to trace an entry
of array which is indexed by constant value, e.g. array[0].
For example:
$ perf probe -a 'bio_split bi->bi_io_vec[0]'
Cc: Paul Mackerras <paulus@samba.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <20100519195742.2885.5344.stgit@localhost6.localdomain6>
Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/probe-event.h')
| -rw-r--r-- | tools/perf/util/probe-event.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/perf/util/probe-event.h b/tools/perf/util/probe-event.h index e9db1a214ca4..bc06d3e8bafa 100644 --- a/tools/perf/util/probe-event.h +++ b/tools/perf/util/probe-event.h @@ -50,6 +50,7 @@ struct perf_probe_point { struct perf_probe_arg_field { struct perf_probe_arg_field *next; /* Next field */ char *name; /* Name of the field */ + long index; /* Array index number */ bool ref; /* Referencing flag */ }; |