diff options
Diffstat (limited to 'tools/perf/util/parse-events.c')
| -rw-r--r-- | tools/perf/util/parse-events.c | 104 |
1 files changed, 86 insertions, 18 deletions
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c index cf082daa43e3..54a7e2634d58 100644 --- a/tools/perf/util/parse-events.c +++ b/tools/perf/util/parse-events.c @@ -268,6 +268,9 @@ const char *event_name(struct perf_evsel *evsel) u64 config = evsel->attr.config; int type = evsel->attr.type; + if (evsel->name) + return evsel->name; + return __event_name(type, config); } @@ -782,8 +785,10 @@ int parse_events(const struct option *opt, const char *str, int unset __used) struct perf_evlist *evlist = *(struct perf_evlist **)opt->value; struct perf_event_attr attr; enum event_result ret; + const char *ostr; for (;;) { + ostr = str; memset(&attr, 0, sizeof(attr)); ret = parse_event_symbols(opt, &str, &attr); if (ret == EVT_FAILED) @@ -798,6 +803,11 @@ int parse_events(const struct option *opt, const char *str, int unset __used) if (evsel == NULL) return -1; perf_evlist__add(evlist, evsel); + + evsel->name = calloc(str - ostr + 1, 1); + if (!evsel->name) + return -1; + strncpy(evsel->name, ostr, str - ostr); } if (*str == 0) @@ -848,7 +858,7 @@ static const char * const event_type_descriptors[] = { * Print the events from <debugfs_mount_point>/tracing/events */ -static void print_tracepoint_events(void) +void print_tracepoint_events(const char *subsys_glob, const char *event_glob) { DIR *sys_dir, *evt_dir; struct dirent *sys_next, *evt_next, sys_dirent, evt_dirent; @@ -863,6 +873,9 @@ static void print_tracepoint_events(void) return; for_each_subsystem(sys_dir, sys_dirent, sys_next) { + if (subsys_glob != NULL && + !strglobmatch(sys_dirent.d_name, subsys_glob)) + continue; snprintf(dir_path, MAXPATHLEN, "%s/%s", debugfs_path, sys_dirent.d_name); @@ -871,6 +884,10 @@ static void print_tracepoint_events(void) continue; for_each_event(sys_dirent, evt_dir, evt_dirent, evt_next) { + if (event_glob != NULL && + !strglobmatch(evt_dirent.d_name, event_glob)) + continue; + snprintf(evt_path, MAXPATHLEN, "%s:%s", sys_dirent.d_name, evt_dirent.d_name); printf(" %-42s [%s]\n", evt_path, @@ -922,13 +939,61 @@ int is_valid_tracepoint(const char *event_string) return 0; } +void print_events_type(u8 type) +{ + struct event_symbol *syms = event_symbols; + unsigned int i; + char name[64]; + + for (i = 0; i < ARRAY_SIZE(event_symbols); i++, syms++) { + if (type != syms->type) + continue; + + if (strlen(syms->alias)) + snprintf(name, sizeof(name), "%s OR %s", + syms->symbol, syms->alias); + else + snprintf(name, sizeof(name), "%s", syms->symbol); + + printf(" %-42s [%s]\n", name, + event_type_descriptors[type]); + } +} + +int print_hwcache_events(const char *event_glob) +{ + unsigned int type, op, i, printed = 0; + + for (type = 0; type < PERF_COUNT_HW_CACHE_MAX; type++) { + for (op = 0; op < PERF_COUNT_HW_CACHE_OP_MAX; op++) { + /* skip invalid cache type */ + if (!is_cache_op_valid(type, op)) + continue; + + for (i = 0; i < PERF_COUNT_HW_CACHE_RESULT_MAX; i++) { + char *name = event_cache_name(type, op, i); + + if (event_glob != NULL && + !strglobmatch(name, event_glob)) + continue; + + printf(" %-42s [%s]\n", name, + event_type_descriptors[PERF_TYPE_HW_CACHE]); + ++printed; + } + } + } + + return printed; +} + /* * Print the help text for the event symbols: */ -void print_events(void) +void print_events(const char *event_glob) { struct event_symbol *syms = event_symbols; - unsigned int i, type, op, prev_type = -1; + unsigned int i, type, prev_type = -1, printed = 0, ntypes_printed = 0; char name[40]; printf("\n"); @@ -937,8 +1002,16 @@ void print_events(void) for (i = 0; i < ARRAY_SIZE(event_symbols); i++, syms++) { type = syms->type; - if (type != prev_type) + if (type != prev_type && printed) { printf("\n"); + printed = 0; + ntypes_printed++; + } + + if (event_glob != NULL && + !(strglobmatch(syms->symbol, event_glob) || + (syms->alias && strglobmatch(syms->alias, event_glob)))) + continue; if (strlen(syms->alias)) sprintf(name, "%s OR %s", syms->symbol, syms->alias); @@ -948,22 +1021,17 @@ void print_events(void) event_type_descriptors[type]); prev_type = type; + ++printed; } - printf("\n"); - for (type = 0; type < PERF_COUNT_HW_CACHE_MAX; type++) { - for (op = 0; op < PERF_COUNT_HW_CACHE_OP_MAX; op++) { - /* skip invalid cache type */ - if (!is_cache_op_valid(type, op)) - continue; - - for (i = 0; i < PERF_COUNT_HW_CACHE_RESULT_MAX; i++) { - printf(" %-42s [%s]\n", - event_cache_name(type, op, i), - event_type_descriptors[PERF_TYPE_HW_CACHE]); - } - } + if (ntypes_printed) { + printed = 0; + printf("\n"); } + print_hwcache_events(event_glob); + + if (event_glob != NULL) + return; printf("\n"); printf(" %-42s [%s]\n", @@ -976,7 +1044,7 @@ void print_events(void) event_type_descriptors[PERF_TYPE_BREAKPOINT]); printf("\n"); - print_tracepoint_events(); + print_tracepoint_events(NULL, NULL); exit(129); } |