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1// SPDX-License-Identifier: GPL-2.0
2/*
3 * Builtin evlist command: Show the list of event selectors present
4 * in a perf.data file.
5 */
6#include "builtin.h"
7
8#include "util/util.h"
9
10#include <linux/list.h>
11
12#include "perf.h"
13#include "util/evlist.h"
14#include "util/evsel.h"
15#include "util/parse-events.h"
16#include <subcmd/parse-options.h>
17#include "util/session.h"
18#include "util/data.h"
19#include "util/debug.h"
20
21static int __cmd_evlist(const char *file_name, struct perf_attr_details *details)
22{
23 struct perf_session *session;
24 struct perf_evsel *pos;
25 struct perf_data data = {
26 .file = {
27 .path = file_name,
28 },
29 .mode = PERF_DATA_MODE_READ,
30 .force = details->force,
31 };
32 bool has_tracepoint = false;
33
34 session = perf_session__new(&data, 0, NULL);
35 if (session == NULL)
36 return -1;
37
38 evlist__for_each_entry(session->evlist, pos) {
39 perf_evsel__fprintf(pos, details, stdout);
40
41 if (pos->attr.type == PERF_TYPE_TRACEPOINT)
42 has_tracepoint = true;
43 }
44
45 if (has_tracepoint && !details->trace_fields)
46 printf("# Tip: use 'perf evlist --trace-fields' to show fields for tracepoint events\n");
47
48 perf_session__delete(session);
49 return 0;
50}
51
52int cmd_evlist(int argc, const char **argv)
53{
54 struct perf_attr_details details = { .verbose = false, };
55 const struct option options[] = {
56 OPT_STRING('i', "input", &input_name, "file", "Input file name"),
57 OPT_BOOLEAN('F', "freq", &details.freq, "Show the sample frequency"),
58 OPT_BOOLEAN('v', "verbose", &details.verbose,
59 "Show all event attr details"),
60 OPT_BOOLEAN('g', "group", &details.event_group,
61 "Show event group information"),
62 OPT_BOOLEAN('f', "force", &details.force, "don't complain, do it"),
63 OPT_BOOLEAN(0, "trace-fields", &details.trace_fields, "Show tracepoint fields"),
64 OPT_END()
65 };
66 const char * const evlist_usage[] = {
67 "perf evlist [<options>]",
68 NULL
69 };
70
71 argc = parse_options(argc, argv, options, evlist_usage, 0);
72 if (argc)
73 usage_with_options(evlist_usage, options);
74
75 if (details.event_group && (details.verbose || details.freq)) {
76 usage_with_options_msg(evlist_usage, options,
77 "--group option is not compatible with other options\n");
78 }
79
80 return __cmd_evlist(input_name, &details);
81}
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * Builtin evlist command: Show the list of event selectors present
4 * in a perf.data file.
5 */
6#include "builtin.h"
7
8#include <linux/list.h>
9
10#include "util/evlist.h"
11#include "util/evsel.h"
12#include "util/evsel_fprintf.h"
13#include "util/parse-events.h"
14#include <subcmd/parse-options.h>
15#include "util/session.h"
16#include "util/data.h"
17#include "util/debug.h"
18#include <linux/err.h>
19#include "util/tool.h"
20#include "util/util.h"
21
22static int process_header_feature(struct perf_session *session __maybe_unused,
23 union perf_event *event __maybe_unused)
24{
25 session_done = 1;
26 return 0;
27}
28
29static int __cmd_evlist(const char *file_name, struct perf_attr_details *details)
30{
31 struct perf_session *session;
32 struct evsel *pos;
33 struct perf_data data = {
34 .path = file_name,
35 .mode = PERF_DATA_MODE_READ,
36 .force = details->force,
37 };
38 struct perf_tool tool;
39 bool has_tracepoint = false, has_group = false;
40
41 perf_tool__init(&tool, /*ordered_events=*/false);
42 /* only needed for pipe mode */
43 tool.attr = perf_event__process_attr;
44 tool.feature = process_header_feature;
45 session = perf_session__new(&data, &tool);
46 if (IS_ERR(session))
47 return PTR_ERR(session);
48
49 if (data.is_pipe)
50 perf_session__process_events(session);
51
52 evlist__for_each_entry(session->evlist, pos) {
53 evsel__fprintf(pos, details, stdout);
54
55 if (pos->core.attr.type == PERF_TYPE_TRACEPOINT)
56 has_tracepoint = true;
57
58 if (!evsel__is_group_leader(pos))
59 has_group = true;
60 }
61
62 if (has_tracepoint && !details->trace_fields)
63 printf("# Tip: use 'perf evlist --trace-fields' to show fields for tracepoint events\n");
64
65 if (has_group && !details->event_group)
66 printf("# Tip: use 'perf evlist -g' to show group information\n");
67
68 perf_session__delete(session);
69 return 0;
70}
71
72int cmd_evlist(int argc, const char **argv)
73{
74 struct perf_attr_details details = { .verbose = false, };
75 const struct option options[] = {
76 OPT_STRING('i', "input", &input_name, "file", "Input file name"),
77 OPT_BOOLEAN('F', "freq", &details.freq, "Show the sample frequency"),
78 OPT_BOOLEAN('v', "verbose", &details.verbose,
79 "Show all event attr details"),
80 OPT_BOOLEAN('g', "group", &details.event_group,
81 "Show event group information"),
82 OPT_BOOLEAN('f', "force", &details.force, "don't complain, do it"),
83 OPT_BOOLEAN(0, "trace-fields", &details.trace_fields, "Show tracepoint fields"),
84 OPT_END()
85 };
86 const char * const evlist_usage[] = {
87 "perf evlist [<options>]",
88 NULL
89 };
90
91 argc = parse_options(argc, argv, options, evlist_usage, 0);
92 if (argc)
93 usage_with_options(evlist_usage, options);
94
95 if (details.event_group && (details.verbose || details.freq)) {
96 usage_with_options_msg(evlist_usage, options,
97 "--group option is not compatible with other options\n");
98 }
99
100 return __cmd_evlist(input_name, &details);
101}