1 files changed, 173 insertions, 81 deletions

diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index 74a5af4d33ec..aed38e4b9dfa 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -239,8 +239,11 @@ const char *event_type(int type)
         return "unknown";
 }
 
-static int add_event(struct list_head **_list, int *idx,
-                     struct perf_event_attr *attr, char *name)
+
+
+static int __add_event(struct list_head **_list, int *idx,
+                       struct perf_event_attr *attr,
+                       char *name, struct cpu_map *cpus)
 {
         struct perf_evsel *evsel;
         struct list_head *list = *_list;
@@ -260,6 +263,7 @@ static int add_event(struct list_head **_list, int *idx,
                 return -ENOMEM;
         }
 
+        evsel->cpus = cpus;
         if (name)
                 evsel->name = strdup(name);
         list_add_tail(&evsel->node, list);
@@ -267,6 +271,12 @@ static int add_event(struct list_head **_list, int *idx,
         return 0;
 }
 
+static int add_event(struct list_head **_list, int *idx,
+                     struct perf_event_attr *attr, char *name)
+{
+        return __add_event(_list, idx, attr, name, NULL);
+}
+
 static int parse_aliases(char *str, const char *names[][PERF_EVSEL__MAX_ALIASES], int size)
 {
         int i, j;
@@ -308,7 +318,7 @@ int parse_events_add_cache(struct list_head **list, int *idx,
         for (i = 0; (i < 2) && (op_result[i]); i++) {
                 char *str = op_result[i];
 
-                snprintf(name + n, MAX_NAME_LEN - n, "-%s\n", str);
+                n += snprintf(name + n, MAX_NAME_LEN - n, "-%s", str);
 
                 if (cache_op == -1) {
                         cache_op = parse_aliases(str, perf_evsel__hw_cache_op,
@@ -346,42 +356,28 @@ int parse_events_add_cache(struct list_head **list, int *idx,
         return add_event(list, idx, &attr, name);
 }
 
-static int add_tracepoint(struct list_head **list, int *idx,
+static int add_tracepoint(struct list_head **listp, int *idx,
                           char *sys_name, char *evt_name)
 {
-        struct perf_event_attr attr;
-        char name[MAX_NAME_LEN];
-        char evt_path[MAXPATHLEN];
-        char id_buf[4];
-        u64 id;
-        int fd;
-
-        snprintf(evt_path, MAXPATHLEN, "%s/%s/%s/id", tracing_events_path,
-                 sys_name, evt_name);
-
-        fd = open(evt_path, O_RDONLY);
-        if (fd < 0)
-                return -1;
+        struct perf_evsel *evsel;
+        struct list_head *list = *listp;
 
-        if (read(fd, id_buf, sizeof(id_buf)) < 0) {
-                close(fd);
-                return -1;
+        if (!list) {
+                list = malloc(sizeof(*list));
+                if (!list)
+                        return -ENOMEM;
+                INIT_LIST_HEAD(list);
         }
 
-        close(fd);
-        id = atoll(id_buf);
-
-        memset(&attr, 0, sizeof(attr));
-        attr.config = id;
-        attr.type = PERF_TYPE_TRACEPOINT;
-        attr.sample_type |= PERF_SAMPLE_RAW;
-        attr.sample_type |= PERF_SAMPLE_TIME;
-        attr.sample_type |= PERF_SAMPLE_CPU;
-        attr.sample_type |= PERF_SAMPLE_PERIOD;
-        attr.sample_period = 1;
+        evsel = perf_evsel__newtp(sys_name, evt_name, (*idx)++);
+        if (!evsel) {
+                free(list);
+                return -ENOMEM;
+        }
 
-        snprintf(name, MAX_NAME_LEN, "%s:%s", sys_name, evt_name);
-        return add_event(list, idx, &attr, name);
+        list_add_tail(&evsel->node, list);
+        *listp = list;
+        return 0;
 }
 
 static int add_tracepoint_multi(struct list_head **list, int *idx,
@@ -551,7 +547,7 @@ static int config_attr(struct perf_event_attr *attr,
 }
 
 int parse_events_add_numeric(struct list_head **list, int *idx,
-                             unsigned long type, unsigned long config,
+                             u32 type, u64 config,
                              struct list_head *head_config)
 {
         struct perf_event_attr attr;
@@ -607,8 +603,23 @@ int parse_events_add_pmu(struct list_head **list, int *idx,
         if (perf_pmu__config(pmu, &attr, head_config))
                 return -EINVAL;
 
-        return add_event(list, idx, &attr,
-                         pmu_event_name(head_config));
+        return __add_event(list, idx, &attr, pmu_event_name(head_config),
+                           pmu->cpus);
+}
+
+int parse_events__modifier_group(struct list_head *list,
+                                 char *event_mod)
+{
+        return parse_events__modifier_event(list, event_mod, true);
+}
+
+void parse_events__set_leader(char *name, struct list_head *list)
+{
+        struct perf_evsel *leader;
+
+        __perf_evlist__set_leader(list);
+        leader = list_entry(list->next, struct perf_evsel, node);
+        leader->group_name = name ? strdup(name) : NULL;
 }
 
 void parse_events_update_lists(struct list_head *list_event,
@@ -616,21 +627,45 @@ void parse_events_update_lists(struct list_head *list_event,
 {
         /*
          * Called for single event definition. Update the
-         * 'all event' list, and reinit the 'signle event'
+         * 'all event' list, and reinit the 'single event'
          * list, for next event definition.
          */
         list_splice_tail(list_event, list_all);
         free(list_event);
 }
 
-int parse_events_modifier(struct list_head *list, char *str)
+struct event_modifier {
+        int eu;
+        int ek;
+        int eh;
+        int eH;
+        int eG;
+        int precise;
+        int exclude_GH;
+};
+
+static int get_event_modifier(struct event_modifier *mod, char *str,
+                               struct perf_evsel *evsel)
 {
-        struct perf_evsel *evsel;
-        int exclude = 0, exclude_GH = 0;
-        int eu = 0, ek = 0, eh = 0, eH = 0, eG = 0, precise = 0;
+        int eu = evsel ? evsel->attr.exclude_user : 0;
+        int ek = evsel ? evsel->attr.exclude_kernel : 0;
+        int eh = evsel ? evsel->attr.exclude_hv : 0;
+        int eH = evsel ? evsel->attr.exclude_host : 0;
+        int eG = evsel ? evsel->attr.exclude_guest : 0;
+        int precise = evsel ? evsel->attr.precise_ip : 0;
 
-        if (str == NULL)
-                return 0;
+        int exclude = eu | ek | eh;
+        int exclude_GH = evsel ? evsel->exclude_GH : 0;
+
+        /*
+         * We are here for group and 'GH' was not set as event
+         * modifier and whatever event/group modifier override
+         * default 'GH' setup.
+         */
+        if (evsel && !exclude_GH)
+                eH = eG = 0;
+
+        memset(mod, 0, sizeof(*mod));
 
         while (*str) {
                 if (*str == 'u') {
@@ -674,13 +709,51 @@ int parse_events_modifier(struct list_head *list, char *str)
         if (precise > 3)
                 return -EINVAL;
 
+        mod->eu = eu;
+        mod->ek = ek;
+        mod->eh = eh;
+        mod->eH = eH;
+        mod->eG = eG;
+        mod->precise = precise;
+        mod->exclude_GH = exclude_GH;
+        return 0;
+}
+
+int parse_events__modifier_event(struct list_head *list, char *str, bool add)
+{
+        struct perf_evsel *evsel;
+        struct event_modifier mod;
+
+        if (str == NULL)
+                return 0;
+
+        if (!add && get_event_modifier(&mod, str, NULL))
+                return -EINVAL;
+
         list_for_each_entry(evsel, list, node) {
-                evsel->attr.exclude_user   = eu;
-                evsel->attr.exclude_kernel = ek;
-                evsel->attr.exclude_hv     = eh;
-                evsel->attr.precise_ip     = precise;
-                evsel->attr.exclude_host   = eH;
-                evsel->attr.exclude_guest  = eG;
+
+                if (add && get_event_modifier(&mod, str, evsel))
+                        return -EINVAL;
+
+                evsel->attr.exclude_user   = mod.eu;
+                evsel->attr.exclude_kernel = mod.ek;
+                evsel->attr.exclude_hv     = mod.eh;
+                evsel->attr.precise_ip     = mod.precise;
+                evsel->attr.exclude_host   = mod.eH;
+                evsel->attr.exclude_guest  = mod.eG;
+                evsel->exclude_GH          = mod.exclude_GH;
+        }
+
+        return 0;
+}
+
+int parse_events_name(struct list_head *list, char *name)
+{
+        struct perf_evsel *evsel;
+
+        list_for_each_entry(evsel, list, node) {
+                if (!evsel->name)
+                        evsel->name = strdup(name);
         }
 
         return 0;
@@ -730,7 +803,8 @@ int parse_events_terms(struct list_head *terms, const char *str)
         return ret;
 }
 
-int parse_events(struct perf_evlist *evlist, const char *str, int unset __used)
+int parse_events(struct perf_evlist *evlist, const char *str,
+                 int unset __maybe_unused)
 {
         struct parse_events_data__events data = {
                 .list = LIST_HEAD_INIT(data.list),
@@ -756,20 +830,20 @@ int parse_events(struct perf_evlist *evlist, const char *str, int unset __used)
 }
 
 int parse_events_option(const struct option *opt, const char *str,
-                        int unset __used)
+                        int unset __maybe_unused)
 {
         struct perf_evlist *evlist = *(struct perf_evlist **)opt->value;
         return parse_events(evlist, str, unset);
 }
 
 int parse_filter(const struct option *opt, const char *str,
-                 int unset __used)
+                 int unset __maybe_unused)
 {
         struct perf_evlist *evlist = *(struct perf_evlist **)opt->value;
         struct perf_evsel *last = NULL;
 
         if (evlist->nr_entries > 0)
-                last = list_entry(evlist->entries.prev, struct perf_evsel, node);
+                last = perf_evlist__last(evlist);
 
         if (last == NULL || last->attr.type != PERF_TYPE_TRACEPOINT) {
                 fprintf(stderr,
@@ -799,7 +873,8 @@ static const char * const event_type_descriptors[] = {
  * Print the events from <debugfs_mount_point>/tracing/events
  */
 
-void print_tracepoint_events(const char *subsys_glob, const char *event_glob)
+void print_tracepoint_events(const char *subsys_glob, const char *event_glob,
+                             bool name_only)
 {
         DIR *sys_dir, *evt_dir;
         struct dirent *sys_next, *evt_next, sys_dirent, evt_dirent;
@@ -829,6 +904,11 @@ void print_tracepoint_events(const char *subsys_glob, const char *event_glob)
                             !strglobmatch(evt_dirent.d_name, event_glob))
                                 continue;
 
+                        if (name_only) {
+                                printf("%s:%s ", sys_dirent.d_name, evt_dirent.d_name);
+                                continue;
+                        }
+
                         snprintf(evt_path, MAXPATHLEN, "%s:%s",
                                  sys_dirent.d_name, evt_dirent.d_name);
                         printf("  %-50s [%s]\n", evt_path,
@@ -906,7 +986,7 @@ void print_events_type(u8 type)
                 __print_events_type(type, event_symbols_hw, PERF_COUNT_HW_MAX);
 }
 
-int print_hwcache_events(const char *event_glob)
+int print_hwcache_events(const char *event_glob, bool name_only)
 {
         unsigned int type, op, i, printed = 0;
         char name[64];
@@ -923,8 +1003,11 @@ int print_hwcache_events(const char *event_glob)
                                 if (event_glob != NULL && !strglobmatch(name, event_glob))
                                         continue;
 
-                                printf("  %-50s [%s]\n", name,
-                                        event_type_descriptors[PERF_TYPE_HW_CACHE]);
+                                if (name_only)
+                                        printf("%s ", name);
+                                else
+                                        printf("  %-50s [%s]\n", name,
+                                               event_type_descriptors[PERF_TYPE_HW_CACHE]);
                                 ++printed;
                         }
                 }
@@ -934,7 +1017,8 @@ int print_hwcache_events(const char *event_glob)
 }
 
 static void print_symbol_events(const char *event_glob, unsigned type,
-                                struct event_symbol *syms, unsigned max)
+                                struct event_symbol *syms, unsigned max,
+                                bool name_only)
 {
         unsigned i, printed = 0;
         char name[MAX_NAME_LEN];
@@ -946,6 +1030,11 @@ static void print_symbol_events(const char *event_glob, unsigned type,
                       (syms->alias && strglobmatch(syms->alias, event_glob))))
                         continue;
 
+                if (name_only) {
+                        printf("%s ", syms->symbol);
+                        continue;
+                }
+
                 if (strlen(syms->alias))
                         snprintf(name, MAX_NAME_LEN, "%s OR %s", syms->symbol, syms->alias);
                 else
@@ -963,39 +1052,42 @@ static void print_symbol_events(const char *event_glob, unsigned type,
 /*
  * Print the help text for the event symbols:
  */
-void print_events(const char *event_glob)
+void print_events(const char *event_glob, bool name_only)
 {
-
-        printf("\n");
-        printf("List of pre-defined events (to be used in -e):\n");
+        if (!name_only) {
+                printf("\n");
+                printf("List of pre-defined events (to be used in -e):\n");
+        }
 
         print_symbol_events(event_glob, PERF_TYPE_HARDWARE,
-                            event_symbols_hw, PERF_COUNT_HW_MAX);
+                            event_symbols_hw, PERF_COUNT_HW_MAX, name_only);
 
         print_symbol_events(event_glob, PERF_TYPE_SOFTWARE,
-                            event_symbols_sw, PERF_COUNT_SW_MAX);
+                            event_symbols_sw, PERF_COUNT_SW_MAX, name_only);
 
-        print_hwcache_events(event_glob);
+        print_hwcache_events(event_glob, name_only);
 
         if (event_glob != NULL)
                 return;
 
-        printf("\n");
-        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]);
-        printf("   (see 'perf list --help' on how to encode it)\n");
-        printf("\n");
-
-        printf("  %-50s [%s]\n",
-                        "mem:<addr>[:access]",
+        if (!name_only) {
+                printf("\n");
+                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]);
+                printf("   (see 'perf list --help' on how to encode it)\n");
+                printf("\n");
+
+                printf("  %-50s [%s]\n",
+                       "mem:<addr>[:access]",
                         event_type_descriptors[PERF_TYPE_BREAKPOINT]);
-        printf("\n");
+                printf("\n");
+        }
 
-        print_tracepoint_events(NULL, NULL);
+        print_tracepoint_events(NULL, NULL, name_only);
 }
 
 int parse_events__is_hardcoded_term(struct parse_events__term *term)
@@ -1005,7 +1097,7 @@ int parse_events__is_hardcoded_term(struct parse_events__term *term)
 
 static int new_term(struct parse_events__term **_term, int type_val,
                     int type_term, char *config,
-                    char *str, long num)
+                    char *str, u64 num)
 {
         struct parse_events__term *term;
 
@@ -1034,7 +1126,7 @@ static int new_term(struct parse_events__term **_term, int type_val,
 }
 
 int parse_events__term_num(struct parse_events__term **term,
-                           int type_term, char *config, long num)
+                           int type_term, char *config, u64 num)
 {
         return new_term(term, PARSE_EVENTS__TERM_TYPE_NUM, type_term,
                         config, NULL, num);