diff options
Diffstat (limited to 'tools/perf/util/parse-events.c')
-rw-r--r-- | tools/perf/util/parse-events.c | 736 |
1 files changed, 25 insertions, 711 deletions
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c index 7ed235740431..f05e15acd33f 100644 --- a/tools/perf/util/parse-events.c +++ b/tools/perf/util/parse-events.c @@ -5,18 +5,12 @@ #include <dirent.h> #include <errno.h> #include <sys/ioctl.h> -#include <sys/types.h> -#include <sys/stat.h> -#include <fcntl.h> #include <sys/param.h> #include "term.h" -#include "build-id.h" #include "evlist.h" #include "evsel.h" -#include <subcmd/pager.h> #include <subcmd/parse-options.h> #include "parse-events.h" -#include <subcmd/exec-cmd.h> #include "string2.h" #include "strlist.h" #include "bpf-loader.h" @@ -24,23 +18,24 @@ #include <api/fs/tracing_path.h> #include <perf/cpumap.h> #include "parse-events-bison.h" -#define YY_EXTRA_TYPE void* #include "parse-events-flex.h" #include "pmu.h" -#include "thread_map.h" -#include "probe-file.h" #include "asm/bug.h" #include "util/parse-branch-options.h" -#include "metricgroup.h" #include "util/evsel_config.h" #include "util/event.h" -#include "util/pfm.h" +#include "perf.h" #include "util/parse-events-hybrid.h" #include "util/pmu-hybrid.h" -#include "perf.h" +#include "tracepoint.h" #define MAX_NAME_LEN 100 +struct perf_pmu_event_symbol { + char *symbol; + enum perf_pmu_event_symbol_type type; +}; + #ifdef PARSER_DEBUG extern int parse_events_debug; #endif @@ -154,21 +149,6 @@ struct event_symbol event_symbols_sw[PERF_COUNT_SW_MAX] = { }, }; -struct event_symbol event_symbols_tool[PERF_TOOL_MAX] = { - [PERF_TOOL_DURATION_TIME] = { - .symbol = "duration_time", - .alias = "", - }, - [PERF_TOOL_USER_TIME] = { - .symbol = "user_time", - .alias = "", - }, - [PERF_TOOL_SYSTEM_TIME] = { - .symbol = "system_time", - .alias = "", - }, -}; - #define __PERF_EVENT_FIELD(config, name) \ ((config & PERF_EVENT_##name##_MASK) >> PERF_EVENT_##name##_SHIFT) @@ -177,121 +157,6 @@ struct event_symbol event_symbols_tool[PERF_TOOL_MAX] = { #define PERF_EVENT_TYPE(config) __PERF_EVENT_FIELD(config, TYPE) #define PERF_EVENT_ID(config) __PERF_EVENT_FIELD(config, EVENT) -#define for_each_subsystem(sys_dir, sys_dirent) \ - while ((sys_dirent = readdir(sys_dir)) != NULL) \ - if (sys_dirent->d_type == DT_DIR && \ - (strcmp(sys_dirent->d_name, ".")) && \ - (strcmp(sys_dirent->d_name, ".."))) - -static int tp_event_has_id(const char *dir_path, struct dirent *evt_dir) -{ - char evt_path[MAXPATHLEN]; - int fd; - - snprintf(evt_path, MAXPATHLEN, "%s/%s/id", dir_path, evt_dir->d_name); - fd = open(evt_path, O_RDONLY); - if (fd < 0) - return -EINVAL; - close(fd); - - return 0; -} - -#define for_each_event(dir_path, evt_dir, evt_dirent) \ - while ((evt_dirent = readdir(evt_dir)) != NULL) \ - if (evt_dirent->d_type == DT_DIR && \ - (strcmp(evt_dirent->d_name, ".")) && \ - (strcmp(evt_dirent->d_name, "..")) && \ - (!tp_event_has_id(dir_path, evt_dirent))) - -#define MAX_EVENT_LENGTH 512 - -struct tracepoint_path *tracepoint_id_to_path(u64 config) -{ - struct tracepoint_path *path = NULL; - DIR *sys_dir, *evt_dir; - struct dirent *sys_dirent, *evt_dirent; - char id_buf[24]; - int fd; - u64 id; - char evt_path[MAXPATHLEN]; - char *dir_path; - - sys_dir = tracing_events__opendir(); - if (!sys_dir) - return NULL; - - for_each_subsystem(sys_dir, sys_dirent) { - dir_path = get_events_file(sys_dirent->d_name); - if (!dir_path) - continue; - evt_dir = opendir(dir_path); - if (!evt_dir) - goto next; - - for_each_event(dir_path, evt_dir, evt_dirent) { - - scnprintf(evt_path, MAXPATHLEN, "%s/%s/id", dir_path, - evt_dirent->d_name); - fd = open(evt_path, O_RDONLY); - if (fd < 0) - continue; - if (read(fd, id_buf, sizeof(id_buf)) < 0) { - close(fd); - continue; - } - close(fd); - id = atoll(id_buf); - if (id == config) { - put_events_file(dir_path); - closedir(evt_dir); - closedir(sys_dir); - path = zalloc(sizeof(*path)); - if (!path) - return NULL; - if (asprintf(&path->system, "%.*s", MAX_EVENT_LENGTH, sys_dirent->d_name) < 0) { - free(path); - return NULL; - } - if (asprintf(&path->name, "%.*s", MAX_EVENT_LENGTH, evt_dirent->d_name) < 0) { - zfree(&path->system); - free(path); - return NULL; - } - return path; - } - } - closedir(evt_dir); -next: - put_events_file(dir_path); - } - - closedir(sys_dir); - return NULL; -} - -struct tracepoint_path *tracepoint_name_to_path(const char *name) -{ - struct tracepoint_path *path = zalloc(sizeof(*path)); - char *str = strchr(name, ':'); - - if (path == NULL || str == NULL) { - free(path); - return NULL; - } - - path->system = strndup(name, str - name); - path->name = strdup(str+1); - - if (path->system == NULL || path->name == NULL) { - zfree(&path->system); - zfree(&path->name); - zfree(&path); - } - - return path; -} - const char *event_type(int type) { switch (type) { @@ -2375,6 +2240,17 @@ int __parse_events(struct evlist *evlist, const char *str, return ret; } +int parse_event(struct evlist *evlist, const char *str) +{ + struct parse_events_error err; + int ret; + + parse_events_error__init(&err); + ret = parse_events(evlist, str, &err); + parse_events_error__exit(&err); + return ret; +} + void parse_events_error__init(struct parse_events_error *err) { bzero(err, sizeof(*err)); @@ -2391,10 +2267,8 @@ void parse_events_error__exit(struct parse_events_error *err) void parse_events_error__handle(struct parse_events_error *err, int idx, char *str, char *help) { - if (WARN(!str, "WARNING: failed to provide error string\n")) { - free(help); - return; - } + if (WARN(!str || !err, "WARNING: failed to provide error string or struct\n")) + goto out_free; switch (err->num_errors) { case 0: err->idx = idx; @@ -2419,6 +2293,11 @@ void parse_events_error__handle(struct parse_events_error *err, int idx, break; } err->num_errors++; + return; + +out_free: + free(str); + free(help); } #define MAX_WIDTH 1000 @@ -2666,571 +2545,6 @@ int exclude_perf(const struct option *opt, NULL); } -static const char * const event_type_descriptors[] = { - "Hardware event", - "Software event", - "Tracepoint event", - "Hardware cache event", - "Raw hardware event descriptor", - "Hardware breakpoint", -}; - -static int cmp_string(const void *a, const void *b) -{ - const char * const *as = a; - const char * const *bs = b; - - return strcmp(*as, *bs); -} - -/* - * Print the events from <debugfs_mount_point>/tracing/events - */ - -void print_tracepoint_events(const char *subsys_glob, const char *event_glob, - bool name_only) -{ - DIR *sys_dir, *evt_dir; - struct dirent *sys_dirent, *evt_dirent; - char evt_path[MAXPATHLEN]; - char *dir_path; - char **evt_list = NULL; - unsigned int evt_i = 0, evt_num = 0; - bool evt_num_known = false; - -restart: - sys_dir = tracing_events__opendir(); - if (!sys_dir) - return; - - if (evt_num_known) { - evt_list = zalloc(sizeof(char *) * evt_num); - if (!evt_list) - goto out_close_sys_dir; - } - - for_each_subsystem(sys_dir, sys_dirent) { - if (subsys_glob != NULL && - !strglobmatch(sys_dirent->d_name, subsys_glob)) - continue; - - dir_path = get_events_file(sys_dirent->d_name); - if (!dir_path) - continue; - evt_dir = opendir(dir_path); - if (!evt_dir) - goto next; - - for_each_event(dir_path, evt_dir, evt_dirent) { - if (event_glob != NULL && - !strglobmatch(evt_dirent->d_name, event_glob)) - continue; - - if (!evt_num_known) { - evt_num++; - continue; - } - - snprintf(evt_path, MAXPATHLEN, "%s:%s", - sys_dirent->d_name, evt_dirent->d_name); - - evt_list[evt_i] = strdup(evt_path); - if (evt_list[evt_i] == NULL) { - put_events_file(dir_path); - goto out_close_evt_dir; - } - evt_i++; - } - closedir(evt_dir); -next: - put_events_file(dir_path); - } - closedir(sys_dir); - - if (!evt_num_known) { - evt_num_known = true; - goto restart; - } - qsort(evt_list, evt_num, sizeof(char *), cmp_string); - evt_i = 0; - while (evt_i < evt_num) { - if (name_only) { - printf("%s ", evt_list[evt_i++]); - continue; - } - printf(" %-50s [%s]\n", evt_list[evt_i++], - event_type_descriptors[PERF_TYPE_TRACEPOINT]); - } - if (evt_num && pager_in_use()) - printf("\n"); - -out_free: - evt_num = evt_i; - for (evt_i = 0; evt_i < evt_num; evt_i++) - zfree(&evt_list[evt_i]); - zfree(&evt_list); - return; - -out_close_evt_dir: - closedir(evt_dir); -out_close_sys_dir: - closedir(sys_dir); - - printf("FATAL: not enough memory to print %s\n", - event_type_descriptors[PERF_TYPE_TRACEPOINT]); - if (evt_list) - goto out_free; -} - -/* - * Check whether event is in <debugfs_mount_point>/tracing/events - */ - -int is_valid_tracepoint(const char *event_string) -{ - DIR *sys_dir, *evt_dir; - struct dirent *sys_dirent, *evt_dirent; - char evt_path[MAXPATHLEN]; - char *dir_path; - - sys_dir = tracing_events__opendir(); - if (!sys_dir) - return 0; - - for_each_subsystem(sys_dir, sys_dirent) { - dir_path = get_events_file(sys_dirent->d_name); - if (!dir_path) - continue; - evt_dir = opendir(dir_path); - if (!evt_dir) - goto next; - - for_each_event(dir_path, evt_dir, evt_dirent) { - snprintf(evt_path, MAXPATHLEN, "%s:%s", - sys_dirent->d_name, evt_dirent->d_name); - if (!strcmp(evt_path, event_string)) { - closedir(evt_dir); - closedir(sys_dir); - return 1; - } - } - closedir(evt_dir); -next: - put_events_file(dir_path); - } - closedir(sys_dir); - return 0; -} - -static bool is_event_supported(u8 type, u64 config) -{ - bool ret = true; - int open_return; - struct evsel *evsel; - struct perf_event_attr attr = { - .type = type, - .config = config, - .disabled = 1, - }; - struct perf_thread_map *tmap = thread_map__new_by_tid(0); - - if (tmap == NULL) - return false; - - evsel = evsel__new(&attr); - if (evsel) { - open_return = evsel__open(evsel, NULL, tmap); - ret = open_return >= 0; - - if (open_return == -EACCES) { - /* - * This happens if the paranoid value - * /proc/sys/kernel/perf_event_paranoid is set to 2 - * Re-run with exclude_kernel set; we don't do that - * by default as some ARM machines do not support it. - * - */ - evsel->core.attr.exclude_kernel = 1; - ret = evsel__open(evsel, NULL, tmap) >= 0; - } - evsel__delete(evsel); - } - - perf_thread_map__put(tmap); - return ret; -} - -void print_sdt_events(const char *subsys_glob, const char *event_glob, - bool name_only) -{ - struct probe_cache *pcache; - struct probe_cache_entry *ent; - struct strlist *bidlist, *sdtlist; - struct strlist_config cfg = {.dont_dupstr = true}; - struct str_node *nd, *nd2; - char *buf, *path, *ptr = NULL; - bool show_detail = false; - int ret; - - sdtlist = strlist__new(NULL, &cfg); - if (!sdtlist) { - pr_debug("Failed to allocate new strlist for SDT\n"); - return; - } - bidlist = build_id_cache__list_all(true); - if (!bidlist) { - pr_debug("Failed to get buildids: %d\n", errno); - return; - } - strlist__for_each_entry(nd, bidlist) { - pcache = probe_cache__new(nd->s, NULL); - if (!pcache) - continue; - list_for_each_entry(ent, &pcache->entries, node) { - if (!ent->sdt) - continue; - if (subsys_glob && - !strglobmatch(ent->pev.group, subsys_glob)) - continue; - if (event_glob && - !strglobmatch(ent->pev.event, event_glob)) - continue; - ret = asprintf(&buf, "%s:%s@%s", ent->pev.group, - ent->pev.event, nd->s); - if (ret > 0) - strlist__add(sdtlist, buf); - } - probe_cache__delete(pcache); - } - strlist__delete(bidlist); - - strlist__for_each_entry(nd, sdtlist) { - buf = strchr(nd->s, '@'); - if (buf) - *(buf++) = '\0'; - if (name_only) { - printf("%s ", nd->s); - continue; - } - nd2 = strlist__next(nd); - if (nd2) { - ptr = strchr(nd2->s, '@'); - if (ptr) - *ptr = '\0'; - if (strcmp(nd->s, nd2->s) == 0) - show_detail = true; - } - if (show_detail) { - path = build_id_cache__origname(buf); - ret = asprintf(&buf, "%s@%s(%.12s)", nd->s, path, buf); - if (ret > 0) { - printf(" %-50s [%s]\n", buf, "SDT event"); - free(buf); - } - free(path); - } else - printf(" %-50s [%s]\n", nd->s, "SDT event"); - if (nd2) { - if (strcmp(nd->s, nd2->s) != 0) - show_detail = false; - if (ptr) - *ptr = '@'; - } - } - strlist__delete(sdtlist); -} - -int print_hwcache_events(const char *event_glob, bool name_only) -{ - unsigned int type, op, i, evt_i = 0, evt_num = 0, npmus = 0; - char name[64], new_name[128]; - char **evt_list = NULL, **evt_pmus = NULL; - bool evt_num_known = false; - struct perf_pmu *pmu = NULL; - - if (perf_pmu__has_hybrid()) { - npmus = perf_pmu__hybrid_pmu_num(); - evt_pmus = zalloc(sizeof(char *) * npmus); - if (!evt_pmus) - goto out_enomem; - } - -restart: - if (evt_num_known) { - evt_list = zalloc(sizeof(char *) * evt_num); - if (!evt_list) - goto out_enomem; - } - - 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 (!evsel__is_cache_op_valid(type, op)) - continue; - - for (i = 0; i < PERF_COUNT_HW_CACHE_RESULT_MAX; i++) { - unsigned int hybrid_supported = 0, j; - bool supported; - - __evsel__hw_cache_type_op_res_name(type, op, i, name, sizeof(name)); - if (event_glob != NULL && !strglobmatch(name, event_glob)) - continue; - - if (!perf_pmu__has_hybrid()) { - if (!is_event_supported(PERF_TYPE_HW_CACHE, - type | (op << 8) | (i << 16))) { - continue; - } - } else { - perf_pmu__for_each_hybrid_pmu(pmu) { - if (!evt_num_known) { - evt_num++; - continue; - } - - supported = is_event_supported( - PERF_TYPE_HW_CACHE, - type | (op << 8) | (i << 16) | - ((__u64)pmu->type << PERF_PMU_TYPE_SHIFT)); - if (supported) { - snprintf(new_name, sizeof(new_name), "%s/%s/", - pmu->name, name); - evt_pmus[hybrid_supported] = strdup(new_name); - hybrid_supported++; - } - } - - if (hybrid_supported == 0) - continue; - } - - if (!evt_num_known) { - evt_num++; - continue; - } - - if ((hybrid_supported == 0) || - (hybrid_supported == npmus)) { - evt_list[evt_i] = strdup(name); - if (npmus > 0) { - for (j = 0; j < npmus; j++) - zfree(&evt_pmus[j]); - } - } else { - for (j = 0; j < hybrid_supported; j++) { - evt_list[evt_i++] = evt_pmus[j]; - evt_pmus[j] = NULL; - } - continue; - } - - if (evt_list[evt_i] == NULL) - goto out_enomem; - evt_i++; - } - } - } - - if (!evt_num_known) { - evt_num_known = true; - goto restart; - } - - for (evt_i = 0; evt_i < evt_num; evt_i++) { - if (!evt_list[evt_i]) - break; - } - - evt_num = evt_i; - qsort(evt_list, evt_num, sizeof(char *), cmp_string); - evt_i = 0; - while (evt_i < evt_num) { - if (name_only) { - printf("%s ", evt_list[evt_i++]); - continue; - } - printf(" %-50s [%s]\n", evt_list[evt_i++], - event_type_descriptors[PERF_TYPE_HW_CACHE]); - } - if (evt_num && pager_in_use()) - printf("\n"); - -out_free: - evt_num = evt_i; - for (evt_i = 0; evt_i < evt_num; evt_i++) - zfree(&evt_list[evt_i]); - zfree(&evt_list); - - for (evt_i = 0; evt_i < npmus; evt_i++) - zfree(&evt_pmus[evt_i]); - zfree(&evt_pmus); - return evt_num; - -out_enomem: - printf("FATAL: not enough memory to print %s\n", event_type_descriptors[PERF_TYPE_HW_CACHE]); - if (evt_list) - goto out_free; - return evt_num; -} - -static void print_tool_event(const struct event_symbol *syms, const char *event_glob, - bool name_only) -{ - if (syms->symbol == NULL) - return; - - if (event_glob && !(strglobmatch(syms->symbol, event_glob) || - (syms->alias && strglobmatch(syms->alias, event_glob)))) - return; - - if (name_only) - printf("%s ", syms->symbol); - else { - char name[MAX_NAME_LEN]; - if (syms->alias && strlen(syms->alias)) - snprintf(name, MAX_NAME_LEN, "%s OR %s", syms->symbol, syms->alias); - else - strlcpy(name, syms->symbol, MAX_NAME_LEN); - printf(" %-50s [%s]\n", name, "Tool event"); - } -} - -void print_tool_events(const char *event_glob, bool name_only) -{ - // Start at 1 because the first enum entry symbols no tool event - for (int i = 1; i < PERF_TOOL_MAX; ++i) { - print_tool_event(event_symbols_tool + i, event_glob, name_only); - } - if (pager_in_use()) - printf("\n"); -} - -void print_symbol_events(const char *event_glob, unsigned type, - struct event_symbol *syms, unsigned max, - bool name_only) -{ - unsigned int i, evt_i = 0, evt_num = 0; - char name[MAX_NAME_LEN]; - char **evt_list = NULL; - bool evt_num_known = false; - -restart: - if (evt_num_known) { - evt_list = zalloc(sizeof(char *) * evt_num); - if (!evt_list) - goto out_enomem; - syms -= max; - } - - for (i = 0; i < max; i++, syms++) { - /* - * New attr.config still not supported here, the latest - * example was PERF_COUNT_SW_CGROUP_SWITCHES - */ - if (syms->symbol == NULL) - continue; - - if (event_glob != NULL && !(strglobmatch(syms->symbol, event_glob) || - (syms->alias && strglobmatch(syms->alias, event_glob)))) - continue; - - if (!is_event_supported(type, i)) - continue; - - if (!evt_num_known) { - evt_num++; - continue; - } - - if (!name_only && strlen(syms->alias)) - snprintf(name, MAX_NAME_LEN, "%s OR %s", syms->symbol, syms->alias); - else - strlcpy(name, syms->symbol, MAX_NAME_LEN); - - evt_list[evt_i] = strdup(name); - if (evt_list[evt_i] == NULL) - goto out_enomem; - evt_i++; - } - - if (!evt_num_known) { - evt_num_known = true; - goto restart; - } - qsort(evt_list, evt_num, sizeof(char *), cmp_string); - evt_i = 0; - while (evt_i < evt_num) { - if (name_only) { - printf("%s ", evt_list[evt_i++]); - continue; - } - printf(" %-50s [%s]\n", evt_list[evt_i++], event_type_descriptors[type]); - } - if (evt_num && pager_in_use()) - printf("\n"); - -out_free: - evt_num = evt_i; - for (evt_i = 0; evt_i < evt_num; evt_i++) - zfree(&evt_list[evt_i]); - zfree(&evt_list); - return; - -out_enomem: - printf("FATAL: not enough memory to print %s\n", event_type_descriptors[type]); - if (evt_list) - goto out_free; -} - -/* - * Print the help text for the event symbols: - */ -void print_events(const char *event_glob, bool name_only, bool quiet_flag, - bool long_desc, bool details_flag, bool deprecated, - const char *pmu_name) -{ - print_symbol_events(event_glob, PERF_TYPE_HARDWARE, - event_symbols_hw, PERF_COUNT_HW_MAX, name_only); - - print_symbol_events(event_glob, PERF_TYPE_SOFTWARE, - event_symbols_sw, PERF_COUNT_SW_MAX, name_only); - print_tool_events(event_glob, name_only); - - print_hwcache_events(event_glob, name_only); - - print_pmu_events(event_glob, name_only, quiet_flag, long_desc, - details_flag, deprecated, pmu_name); - - if (event_glob != NULL) - return; - - if (!name_only) { - printf(" %-50s [%s]\n", - "rNNN", - event_type_descriptors[PERF_TYPE_RAW]); - printf(" %-50s [%s]\n", - "cpu/t1=v1[,t2=v2,t3 ...]/modifier", - event_type_descriptors[PERF_TYPE_RAW]); - if (pager_in_use()) - printf(" (see 'man perf-list' on how to encode it)\n\n"); - - printf(" %-50s [%s]\n", - "mem:<addr>[/len][:access]", - event_type_descriptors[PERF_TYPE_BREAKPOINT]); - if (pager_in_use()) - printf("\n"); - } - - print_tracepoint_events(NULL, NULL, name_only); - - print_sdt_events(NULL, NULL, name_only); - - metricgroup__print(true, true, NULL, name_only, details_flag, - pmu_name); - - print_libpfm_events(name_only, long_desc); -} - int parse_events__is_hardcoded_term(struct parse_events_term *term) { return term->type_term != PARSE_EVENTS__TERM_TYPE_USER; |