perf_counter tools: Add 'perf list' to list available events
perf list: List all the available event types which can be used in
-e (--event) options.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/Documentation/perf_counter/util/parse-events.c b/Documentation/perf_counter/util/parse-events.c
index de9a77c4..150fbd2 100644
--- a/Documentation/perf_counter/util/parse-events.c
+++ b/Documentation/perf_counter/util/parse-events.c
@@ -274,31 +274,43 @@
return 0;
}
+static const char * const event_type_descriptors[] = {
+ "",
+ "Hardware event",
+ "Software event",
+ "Tracepoint event",
+ "Hardware cache event",
+};
+
/*
- * Create the help text for the event symbols:
+ * Print the help text for the event symbols:
*/
-void create_events_help(char *events_help_msg)
+void print_events(void)
{
- unsigned int i;
- char *str;
+ struct event_symbol *syms = event_symbols;
+ unsigned int i, type, prev_type = -1;
- str = events_help_msg;
+ fprintf(stderr, "\n");
+ fprintf(stderr, "List of pre-defined events (to be used in -e):\n");
- str += sprintf(str,
- "event name: [");
+ for (i = 0; i < ARRAY_SIZE(event_symbols); i++, syms++) {
+ type = syms->type + 1;
+ if (type > ARRAY_SIZE(event_type_descriptors))
+ type = 0;
- for (i = 0; i < ARRAY_SIZE(event_symbols); i++) {
- int type, id;
+ if (type != prev_type)
+ fprintf(stderr, "\n");
- type = event_symbols[i].type;
- id = event_symbols[i].config;
+ fprintf(stderr, " %-30s [%s]\n", syms->symbol,
+ event_type_descriptors[type]);
- if (i)
- str += sprintf(str, "|");
-
- str += sprintf(str, "%s",
- event_symbols[i].symbol);
+ prev_type = type;
}
- str += sprintf(str, "|rNNN]");
+ fprintf(stderr, "\n");
+ fprintf(stderr, " %-30s [raw hardware event descriptor]\n",
+ "rNNN");
+ fprintf(stderr, "\n");
+
+ exit(129);
}