perf tools: De-opt the parse_events function

Moving out the option parameter from parse_events function,
and adding new parse_events_option function instead.

The option parameter is used only to carry "struct perf_evlist"
pointer for chaining new events. Putting it away, enable us
to call parse_events from other places without using the
option parameter.

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Cc: acme@redhat.com
Cc: a.p.zijlstra@chello.nl
Cc: paulus@samba.org
Link: http://lkml.kernel.org/r/1310635534-4013-2-git-send-email-jolsa@redhat.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 16 insertions, 10 deletions

diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index c0e21aec4896..4ea7e19f5251 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -478,7 +478,7 @@ 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_multiple_tracepoint_event(const struct option *opt, char *sys_name,
+parse_multiple_tracepoint_event(struct perf_evlist *evlist, char *sys_name,
 				const char *evt_exp, char *flags)
 {
 	char evt_path[MAXPATHLEN];
@@ -512,7 +512,7 @@ parse_multiple_tracepoint_event(const struct option *opt, char *sys_name,
 		if (len < 0)
 			return EVT_FAILED;
 
-		if (parse_events(opt, event_opt, 0))
+		if (parse_events(evlist, event_opt, 0))
 			return EVT_FAILED;
 	}
 
@@ -520,7 +520,7 @@ parse_multiple_tracepoint_event(const struct option *opt, char *sys_name,
 }
 
 static enum event_result
-parse_tracepoint_event(const struct option *opt, const char **strp,
+parse_tracepoint_event(struct perf_evlist *evlist, const char **strp,
 		       struct perf_event_attr *attr)
 {
 	const char *evt_name;
@@ -560,8 +560,8 @@ parse_tracepoint_event(const struct option *opt, const char **strp,
 		return EVT_FAILED;
 	if (strpbrk(evt_name, "*?")) {
 		*strp += strlen(sys_name) + evt_length + 1; /* 1 == the ':' */
-		return parse_multiple_tracepoint_event(opt, sys_name, evt_name,
-						       flags);
+		return parse_multiple_tracepoint_event(evlist, sys_name,
+						       evt_name, flags);
 	} else {
 		return parse_single_tracepoint_event(sys_name, evt_name,
 						     evt_length, attr, strp);
@@ -781,12 +781,12 @@ parse_event_modifier(const char **strp, struct perf_event_attr *attr)
  * Symbolic names are (almost) exactly matched.
  */
 static enum event_result
-parse_event_symbols(const struct option *opt, const char **str,
+parse_event_symbols(struct perf_evlist *evlist, const char **str,
 		    struct perf_event_attr *attr)
 {
 	enum event_result ret;
 
-	ret = parse_tracepoint_event(opt, str, attr);
+	ret = parse_tracepoint_event(evlist, str, attr);
 	if (ret != EVT_FAILED)
 		goto modifier;
 
@@ -825,9 +825,8 @@ modifier:
 	return ret;
 }
 
-int parse_events(const struct option *opt, const char *str, int unset __used)
+int parse_events(struct perf_evlist *evlist , const char *str, int unset __used)
 {
-	struct perf_evlist *evlist = *(struct perf_evlist **)opt->value;
 	struct perf_event_attr attr;
 	enum event_result ret;
 	const char *ostr;
@@ -835,7 +834,7 @@ int parse_events(const struct option *opt, const char *str, int unset __used)
 	for (;;) {
 		ostr = str;
 		memset(&attr, 0, sizeof(attr));
-		ret = parse_event_symbols(opt, &str, &attr);
+		ret = parse_event_symbols(evlist, &str, &attr);
 		if (ret == EVT_FAILED)
 			return -1;
 
@@ -866,6 +865,13 @@ int parse_events(const struct option *opt, const char *str, int unset __used)
 	return 0;
 }
 
+int parse_events_option(const struct option *opt, const char *str,
+			int unset __used)
+{
+	struct perf_evlist *evlist = *(struct perf_evlist **)opt->value;
+	return parse_events(evlist, str, unset);
+}
+
 int parse_filter(const struct option *opt, const char *str,
 		 int unset __used)
 {