diff options
| author |   Masami Hiramatsu <mhiramat@redhat.com> | 2010-04-12 13:17:00 -0400 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2010-04-14 17:26:14 -0300 |
| commit | df0faf4be02996135bc3a06b4f34360449c78084 (patch) | |
| tree | a881d7b195d1759e470c0c024c52221508067ebf /tools/perf/util | |
| parent | perf probe: Support argument name (diff) | |
| download | linux-dev-df0faf4be02996135bc3a06b4f34360449c78084.tar.xz linux-dev-df0faf4be02996135bc3a06b4f34360449c78084.zip | |
perf probe: Use the last field name as the argument name
Set the last field name to the argument name when the argument
is refering a data-structure member.
e.g.
./perf probe --add 'vfs_read file->f_mode'
Add new event:
probe:vfs_read (on vfs_read with f_mode=file->f_mode)
This probe records file->f_mode, but the argument name becomes "f_mode".
This enables perf-trace command to parse trace event format correctly.
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <20100412171700.3790.72961.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')
| -rw-r--r-- | tools/perf/util/probe-event.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c index ab6f53deabad..19de8b77973d 100644 --- a/tools/perf/util/probe-event.c +++ b/tools/perf/util/probe-event.c @@ -481,6 +481,10 @@ static void parse_perf_probe_arg(const char *str, struct perf_probe_arg *arg) } while (tmp); (*fieldp)->name = xstrdup(str); pr_debug("%s(%d)\n", (*fieldp)->name, (*fieldp)->ref); + + /* If no name is specified, set the last field name */ + if (!arg->name) + arg->name = xstrdup((*fieldp)->name); } /* Parse perf-probe event command */ |