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authorMasami Hiramatsu <mhiramat@redhat.com>2010-01-05 17:47:17 -0500
committerIngo Molnar <mingo@elte.hu>2010-01-13 10:09:13 +0100
commitfb1d2edf7ee25a26ad0b238d0ee335a3b28b7aa3 (patch)
treeeff3d2dc8fe865ecacda8733f9bf60d035626246 /tools/perf/util
parent72041334b8c75ae7e1da2f17ba2b7afee8f2abd7 (diff)
perf tools: Support tracepoint glob matching
Support glob wildcard when selecting tracepoint events by -e option. Without this patch, perf-tools supports 'GROUP:*:record' syntax for selecting all tracepoints under GROUP group. With this patch, user can choose tracepoints more flexibly by using partial wildcards, e.g. 'block:*bio*:record'. Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: systemtap <systemtap@sources.redhat.com> Cc: DLE <dle-develop@lists.sourceforge.net> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Mike Galbraith <efault@gmx.de> LKML-Reference: <20100105224717.19431.68972.stgit@dhcp-100-2-132.bos.redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'tools/perf/util')
-rw-r--r--tools/perf/util/parse-events.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index 609d5a9470c..05d0c5c2030 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -450,7 +450,8 @@ parse_single_tracepoint_event(char *sys_name,
/* sys + ':' + event + ':' + flags*/
#define MAX_EVOPT_LEN (MAX_EVENT_LENGTH * 2 + 2 + 128)
static enum event_result
-parse_subsystem_tracepoint_event(char *sys_name, char *flags)
+parse_multiple_tracepoint_event(char *sys_name, const char *evt_exp,
+ char *flags)
{
char evt_path[MAXPATHLEN];
struct dirent *evt_ent;
@@ -474,6 +475,9 @@ parse_subsystem_tracepoint_event(char *sys_name, char *flags)
|| !strcmp(evt_ent->d_name, "filter"))
continue;
+ if (!strglobmatch(evt_ent->d_name, evt_exp))
+ continue;
+
len = snprintf(event_opt, MAX_EVOPT_LEN, "%s:%s%s%s", sys_name,
evt_ent->d_name, flags ? ":" : "",
flags ?: "");
@@ -522,9 +526,10 @@ static enum event_result parse_tracepoint_event(const char **strp,
if (evt_length >= MAX_EVENT_LENGTH)
return EVT_FAILED;
- if (!strcmp(evt_name, "*")) {
+ if (strpbrk(evt_name, "*?")) {
*strp = evt_name + evt_length;
- return parse_subsystem_tracepoint_event(sys_name, flags);
+ return parse_multiple_tracepoint_event(sys_name, evt_name,
+ flags);
} else
return parse_single_tracepoint_event(sys_name, evt_name,
evt_length, flags,