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 18 static int __cmd_evlist(const char *file_name, struct perf_attr_details *details) 19 { 20 struct perf_session *session; 21 struct perf_evsel *pos; 22 23 session = perf_session__new(file_name, O_RDONLY, 0, false, NULL); 24 if (session == NULL) 25 return -ENOMEM; 26 27 list_for_each_entry(pos, &session->evlist->entries, node) 28 perf_evsel__fprintf(pos, details, stdout); 29 30 perf_session__delete(session); 31 return 0; 32 } 33 34 int cmd_evlist(int argc, const char **argv, const char *prefix __maybe_unused) 35 { 36 struct perf_attr_details details = { .verbose = false, }; 37 const struct option options[] = { 38 OPT_STRING('i', "input", &input_name, "file", "Input file name"), 39 OPT_BOOLEAN('F', "freq", &details.freq, "Show the sample frequency"), 40 OPT_BOOLEAN('v', "verbose", &details.verbose, 41 "Show all event attr details"), 42 OPT_BOOLEAN('g', "group", &details.event_group, 43 "Show event group information"), 44 OPT_END() 45 }; 46 const char * const evlist_usage[] = { 47 "perf evlist [<options>]", 48 NULL 49 }; 50 51 argc = parse_options(argc, argv, options, evlist_usage, 0); 52 if (argc) 53 usage_with_options(evlist_usage, options); 54 55 if (details.event_group && (details.verbose || details.freq)) { 56 pr_err("--group option is not compatible with other options\n"); 57 usage_with_options(evlist_usage, options); 58 } 59 60 return __cmd_evlist(input_name, &details); 61 } 62