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 20 static 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 41 int 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 usage_with_options_msg(evlist_usage, options, 65 "--group option is not compatible with other options\n"); 66 } 67 68 return __cmd_evlist(input_name, &details); 69 } 70