Root/tools/perf/builtin-evlist.c

Source at commit ec7cab4cbb721bff91ec924ec691efd8daf36579 created 9 years 7 months ago.
By Maarten ter Huurne, MIPS: JZ4740: A320: Updated quickstart documentation.
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
18static char const *input_name = "perf.data";
19
20static int __cmd_evlist(void)
21{
22    struct perf_session *session;
23    struct perf_evsel *pos;
24
25    session = perf_session__new(input_name, O_RDONLY, 0, false, NULL);
26    if (session == NULL)
27        return -ENOMEM;
28
29    list_for_each_entry(pos, &session->evlist->entries, node)
30        printf("%s\n", event_name(pos));
31
32    perf_session__delete(session);
33    return 0;
34}
35
36static const char * const evlist_usage[] = {
37    "perf evlist [<options>]",
38    NULL
39};
40
41static const struct option options[] = {
42    OPT_STRING('i', "input", &input_name, "file",
43            "input file name"),
44    OPT_END()
45};
46
47int cmd_evlist(int argc, const char **argv, const char *prefix __used)
48{
49    argc = parse_options(argc, argv, options, evlist_usage, 0);
50    if (argc)
51        usage_with_options(evlist_usage, options);
52
53    return __cmd_evlist();
54}
55

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