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-rw-r--r--tools/perf/util/parse-events.c104
1 files changed, 86 insertions, 18 deletions
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index cf082daa43e3..54a7e2634d58 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -268,6 +268,9 @@ const char *event_name(struct perf_evsel *evsel)
u64 config = evsel->attr.config;
int type = evsel->attr.type;
+ if (evsel->name)
+ return evsel->name;
+
return __event_name(type, config);
}
@@ -782,8 +785,10 @@ int parse_events(const struct option *opt, 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;
for (;;) {
+ ostr = str;
memset(&attr, 0, sizeof(attr));
ret = parse_event_symbols(opt, &str, &attr);
if (ret == EVT_FAILED)
@@ -798,6 +803,11 @@ int parse_events(const struct option *opt, const char *str, int unset __used)
if (evsel == NULL)
return -1;
perf_evlist__add(evlist, evsel);
+
+ evsel->name = calloc(str - ostr + 1, 1);
+ if (!evsel->name)
+ return -1;
+ strncpy(evsel->name, ostr, str - ostr);
}
if (*str == 0)
@@ -848,7 +858,7 @@ static const char * const event_type_descriptors[] = {
* Print the events from <debugfs_mount_point>/tracing/events
*/
-static void print_tracepoint_events(void)
+void print_tracepoint_events(const char *subsys_glob, const char *event_glob)
{
DIR *sys_dir, *evt_dir;
struct dirent *sys_next, *evt_next, sys_dirent, evt_dirent;
@@ -863,6 +873,9 @@ static void print_tracepoint_events(void)
return;
for_each_subsystem(sys_dir, sys_dirent, sys_next) {
+ if (subsys_glob != NULL &&
+ !strglobmatch(sys_dirent.d_name, subsys_glob))
+ continue;
snprintf(dir_path, MAXPATHLEN, "%s/%s", debugfs_path,
sys_dirent.d_name);
@@ -871,6 +884,10 @@ static void print_tracepoint_events(void)
continue;
for_each_event(sys_dirent, evt_dir, evt_dirent, evt_next) {
+ if (event_glob != NULL &&
+ !strglobmatch(evt_dirent.d_name, event_glob))
+ continue;
+
snprintf(evt_path, MAXPATHLEN, "%s:%s",
sys_dirent.d_name, evt_dirent.d_name);
printf(" %-42s [%s]\n", evt_path,
@@ -922,13 +939,61 @@ int is_valid_tracepoint(const char *event_string)
return 0;
}
+void print_events_type(u8 type)
+{
+ struct event_symbol *syms = event_symbols;
+ unsigned int i;
+ char name[64];
+
+ for (i = 0; i < ARRAY_SIZE(event_symbols); i++, syms++) {
+ if (type != syms->type)
+ continue;
+
+ if (strlen(syms->alias))
+ snprintf(name, sizeof(name), "%s OR %s",
+ syms->symbol, syms->alias);
+ else
+ snprintf(name, sizeof(name), "%s", syms->symbol);
+
+ printf(" %-42s [%s]\n", name,
+ event_type_descriptors[type]);
+ }
+}
+
+int print_hwcache_events(const char *event_glob)
+{
+ unsigned int type, op, i, printed = 0;
+
+ for (type = 0; type < PERF_COUNT_HW_CACHE_MAX; type++) {
+ for (op = 0; op < PERF_COUNT_HW_CACHE_OP_MAX; op++) {
+ /* skip invalid cache type */
+ if (!is_cache_op_valid(type, op))
+ continue;
+
+ for (i = 0; i < PERF_COUNT_HW_CACHE_RESULT_MAX; i++) {
+ char *name = event_cache_name(type, op, i);
+
+ if (event_glob != NULL &&
+ !strglobmatch(name, event_glob))
+ continue;
+
+ printf(" %-42s [%s]\n", name,
+ event_type_descriptors[PERF_TYPE_HW_CACHE]);
+ ++printed;
+ }
+ }
+ }
+
+ return printed;
+}
+
/*
* Print the help text for the event symbols:
*/
-void print_events(void)
+void print_events(const char *event_glob)
{
struct event_symbol *syms = event_symbols;
- unsigned int i, type, op, prev_type = -1;
+ unsigned int i, type, prev_type = -1, printed = 0, ntypes_printed = 0;
char name[40];
printf("\n");
@@ -937,8 +1002,16 @@ void print_events(void)
for (i = 0; i < ARRAY_SIZE(event_symbols); i++, syms++) {
type = syms->type;
- if (type != prev_type)
+ if (type != prev_type && printed) {
printf("\n");
+ printed = 0;
+ ntypes_printed++;
+ }
+
+ if (event_glob != NULL &&
+ !(strglobmatch(syms->symbol, event_glob) ||
+ (syms->alias && strglobmatch(syms->alias, event_glob))))
+ continue;
if (strlen(syms->alias))
sprintf(name, "%s OR %s", syms->symbol, syms->alias);
@@ -948,22 +1021,17 @@ void print_events(void)
event_type_descriptors[type]);
prev_type = type;
+ ++printed;
}
- printf("\n");
- for (type = 0; type < PERF_COUNT_HW_CACHE_MAX; type++) {
- for (op = 0; op < PERF_COUNT_HW_CACHE_OP_MAX; op++) {
- /* skip invalid cache type */
- if (!is_cache_op_valid(type, op))
- continue;
-
- for (i = 0; i < PERF_COUNT_HW_CACHE_RESULT_MAX; i++) {
- printf(" %-42s [%s]\n",
- event_cache_name(type, op, i),
- event_type_descriptors[PERF_TYPE_HW_CACHE]);
- }
- }
+ if (ntypes_printed) {
+ printed = 0;
+ printf("\n");
}
+ print_hwcache_events(event_glob);
+
+ if (event_glob != NULL)
+ return;
printf("\n");
printf(" %-42s [%s]\n",
@@ -976,7 +1044,7 @@ void print_events(void)
event_type_descriptors[PERF_TYPE_BREAKPOINT]);
printf("\n");
- print_tracepoint_events();
+ print_tracepoint_events(NULL, NULL);
exit(129);
}