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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
18struct perf_attr_details {
19 bool freq;
20 bool verbose;
21};
22
23static int comma_printf(bool *first, const char *fmt, ...)
24{
25 va_list args;
26 int ret = 0;
27
28 if (!*first) {
29 ret += printf(",");
30 } else {
31 ret += printf(":");
32 *first = false;
33 }
34
35 va_start(args, fmt);
36 ret += vprintf(fmt, args);
37 va_end(args);
38 return ret;
39}
40
41static int __if_print(bool *first, const char *field, u64 value)
42{
43 if (value == 0)
44 return 0;
45
46 return comma_printf(first, " %s: %" PRIu64, field, value);
47}
48
49#define if_print(field) __if_print(&first, #field, pos->attr.field)
50
51static int __cmd_evlist(const char *input_name, struct perf_attr_details *details)
52{
53 struct perf_session *session;
54 struct perf_evsel *pos;
55
56 session = perf_session__new(input_name, O_RDONLY, 0, false, NULL);
57 if (session == NULL)
58 return -ENOMEM;
59
60 list_for_each_entry(pos, &session->evlist->entries, node) {
61 bool first = true;
62
63 printf("%s", event_name(pos));
64
65 if (details->verbose || details->freq) {
66 comma_printf(&first, " sample_freq=%" PRIu64,
67 (u64)pos->attr.sample_freq);
68 }
69
70 if (details->verbose) {
71 if_print(type);
72 if_print(config);
73 if_print(config1);
74 if_print(config2);
75 if_print(size);
76 if_print(sample_type);
77 if_print(read_format);
78 if_print(disabled);
79 if_print(inherit);
80 if_print(pinned);
81 if_print(exclusive);
82 if_print(exclude_user);
83 if_print(exclude_kernel);
84 if_print(exclude_hv);
85 if_print(exclude_idle);
86 if_print(mmap);
87 if_print(comm);
88 if_print(freq);
89 if_print(inherit_stat);
90 if_print(enable_on_exec);
91 if_print(task);
92 if_print(watermark);
93 if_print(precise_ip);
94 if_print(mmap_data);
95 if_print(sample_id_all);
96 if_print(exclude_host);
97 if_print(exclude_guest);
98 if_print(__reserved_1);
99 if_print(wakeup_events);
100 if_print(bp_type);
101 if_print(branch_sample_type);
102 }
103
104 putchar('\n');
105 }
106
107 perf_session__delete(session);
108 return 0;
109}
110
111static const char * const evlist_usage[] = {
112 "perf evlist [<options>]",
113 NULL
114};
115
116int cmd_evlist(int argc, const char **argv, const char *prefix __used)
117{
118 struct perf_attr_details details = { .verbose = false, };
119 const char *input_name = NULL;
120 const struct option options[] = {
121 OPT_STRING('i', "input", &input_name, "file",
122 "Input file name"),
123 OPT_BOOLEAN('F', "freq", &details.freq,
124 "Show the sample frequency"),
125 OPT_BOOLEAN('v', "verbose", &details.verbose,
126 "Show all event attr details"),
127 OPT_END()
128 };
129
130 argc = parse_options(argc, argv, options, evlist_usage, 0);
131 if (argc)
132 usage_with_options(evlist_usage, options);
133
134 return __cmd_evlist(input_name, &details);
135}
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}