1/*
2 * Builtin evlist command: Show the list of event selectors present
3 * in a perf.data file.
4 */
5#include "builtin.h"
6
7#include "util/util.h"
8
9#include <linux/list.h>
10
11#include "perf.h"
12#include "util/evlist.h"
13#include "util/evsel.h"
14#include "util/parse-events.h"
15#include "util/parse-options.h"
16#include "util/session.h"
17#include "util/data.h"
18#include "util/debug.h"
19
20static int __cmd_evlist(const char *file_name, struct perf_attr_details *details)
21{
22	struct perf_session *session;
23	struct perf_evsel *pos;
24	struct perf_data_file file = {
25		.path = file_name,
26		.mode = PERF_DATA_MODE_READ,
27		.force = details->force,
28	};
29
30	session = perf_session__new(&file, 0, NULL);
31	if (session == NULL)
32		return -1;
33
34	evlist__for_each(session->evlist, pos)
35		perf_evsel__fprintf(pos, details, stdout);
36
37	perf_session__delete(session);
38	return 0;
39}
40
41int cmd_evlist(int argc, const char **argv, const char *prefix __maybe_unused)
42{
43	struct perf_attr_details details = { .verbose = false, };
44	const struct option options[] = {
45	OPT_STRING('i', "input", &input_name, "file", "Input file name"),
46	OPT_BOOLEAN('F', "freq", &details.freq, "Show the sample frequency"),
47	OPT_BOOLEAN('v', "verbose", &details.verbose,
48		    "Show all event attr details"),
49	OPT_BOOLEAN('g', "group", &details.event_group,
50		    "Show event group information"),
51	OPT_BOOLEAN('f', "force", &details.force, "don't complain, do it"),
52	OPT_END()
53	};
54	const char * const evlist_usage[] = {
55		"perf evlist [<options>]",
56		NULL
57	};
58
59	argc = parse_options(argc, argv, options, evlist_usage, 0);
60	if (argc)
61		usage_with_options(evlist_usage, options);
62
63	if (details.event_group && (details.verbose || details.freq)) {
64		pr_err("--group option is not compatible with other options\n");
65		usage_with_options(evlist_usage, options);
66	}
67
68	return __cmd_evlist(input_name, &details);
69}
70