diff options
Diffstat (limited to 'tools/perf/util/parse-events.c')
| -rw-r--r-- | tools/perf/util/parse-events.c | 111 |
1 files changed, 91 insertions, 20 deletions
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c index 4af5bd5..649083f 100644 --- a/tools/perf/util/parse-events.c +++ b/tools/perf/util/parse-events.c @@ -1,6 +1,7 @@ #include "../../../include/linux/hw_breakpoint.h" #include "util.h" #include "../perf.h" +#include "evsel.h" #include "parse-options.h" #include "parse-events.h" #include "exec_cmd.h" @@ -12,8 +13,7 @@ int nr_counters; -struct perf_event_attr attrs[MAX_COUNTERS]; -char *filters[MAX_COUNTERS]; +LIST_HEAD(evsel_list); struct event_symbol { u8 type; @@ -266,10 +266,10 @@ static char *event_cache_name(u8 cache_type, u8 cache_op, u8 cache_result) return name; } -const char *event_name(int counter) +const char *event_name(struct perf_evsel *evsel) { - u64 config = attrs[counter].config; - int type = attrs[counter].type; + u64 config = evsel->attr.config; + int type = evsel->attr.type; return __event_name(type, config); } @@ -434,7 +434,7 @@ parse_single_tracepoint_event(char *sys_name, id = atoll(id_buf); attr->config = id; attr->type = PERF_TYPE_TRACEPOINT; - *strp = evt_name + evt_length; + *strp += strlen(sys_name) + evt_length + 1; /* + 1 for the ':' */ attr->sample_type |= PERF_SAMPLE_RAW; attr->sample_type |= PERF_SAMPLE_TIME; @@ -495,7 +495,7 @@ static enum event_result parse_tracepoint_event(const char **strp, struct perf_event_attr *attr) { const char *evt_name; - char *flags; + char *flags = NULL, *comma_loc; char sys_name[MAX_EVENT_LENGTH]; unsigned int sys_length, evt_length; @@ -514,6 +514,11 @@ static enum event_result parse_tracepoint_event(const char **strp, sys_name[sys_length] = '\0'; evt_name = evt_name + 1; + comma_loc = strchr(evt_name, ','); + if (comma_loc) { + /* take the event name up to the comma */ + evt_name = strndup(evt_name, comma_loc - evt_name); + } flags = strchr(evt_name, ':'); if (flags) { /* split it out: */ @@ -524,9 +529,8 @@ static enum event_result parse_tracepoint_event(const char **strp, evt_length = strlen(evt_name); if (evt_length >= MAX_EVENT_LENGTH) return EVT_FAILED; - if (strpbrk(evt_name, "*?")) { - *strp = evt_name + evt_length; + *strp += strlen(sys_name) + evt_length; return parse_multiple_tracepoint_event(sys_name, evt_name, flags); } else @@ -810,9 +814,6 @@ int parse_events(const struct option *opt __used, const char *str, int unset __u return -1; for (;;) { - if (nr_counters == MAX_COUNTERS) - return -1; - memset(&attr, 0, sizeof(attr)); ret = parse_event_symbols(&str, &attr); if (ret == EVT_FAILED) @@ -822,8 +823,13 @@ int parse_events(const struct option *opt __used, const char *str, int unset __u return -1; if (ret != EVT_HANDLED_ALL) { - attrs[nr_counters] = attr; - nr_counters++; + struct perf_evsel *evsel; + evsel = perf_evsel__new(attr.type, attr.config, + nr_counters); + if (evsel == NULL) + return -1; + list_add_tail(&evsel->node, &evsel_list); + ++nr_counters; } if (*str == 0) @@ -840,21 +846,22 @@ int parse_events(const struct option *opt __used, const char *str, int unset __u int parse_filter(const struct option *opt __used, const char *str, int unset __used) { - int i = nr_counters - 1; - int len = strlen(str); + struct perf_evsel *last = NULL; - if (i < 0 || attrs[i].type != PERF_TYPE_TRACEPOINT) { + if (!list_empty(&evsel_list)) + last = list_entry(evsel_list.prev, struct perf_evsel, node); + + if (last == NULL || last->attr.type != PERF_TYPE_TRACEPOINT) { fprintf(stderr, "-F option should follow a -e tracepoint option\n"); return -1; } - filters[i] = malloc(len + 1); - if (!filters[i]) { + last->filter = strdup(str); + if (last->filter == NULL) { fprintf(stderr, "not enough memory to hold filter string\n"); return -1; } - strcpy(filters[i], str); return 0; } @@ -906,6 +913,47 @@ static void print_tracepoint_events(void) } /* + * 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_next, *evt_next, sys_dirent, evt_dirent; + char evt_path[MAXPATHLEN]; + char dir_path[MAXPATHLEN]; + + if (debugfs_valid_mountpoint(debugfs_path)) + return 0; + + sys_dir = opendir(debugfs_path); + if (!sys_dir) + return 0; + + for_each_subsystem(sys_dir, sys_dirent, sys_next) { + + snprintf(dir_path, MAXPATHLEN, "%s/%s", debugfs_path, + sys_dirent.d_name); + evt_dir = opendir(dir_path); + if (!evt_dir) + continue; + + for_each_event(sys_dirent, evt_dir, evt_dirent, evt_next) { + 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); + } + closedir(sys_dir); + return 0; +} + +/* * Print the help text for the event symbols: */ void print_events(void) @@ -963,3 +1011,26 @@ void print_events(void) exit(129); } + +int perf_evsel_list__create_default(void) +{ + struct perf_evsel *evsel = perf_evsel__new(PERF_TYPE_HARDWARE, + PERF_COUNT_HW_CPU_CYCLES, 0); + if (evsel == NULL) + return -ENOMEM; + + list_add(&evsel->node, &evsel_list); + ++nr_counters; + return 0; +} + +void perf_evsel_list__delete(void) +{ + struct perf_evsel *pos, *n; + + list_for_each_entry_safe(pos, n, &evsel_list, node) { + list_del_init(&pos->node); + perf_evsel__delete(pos); + } + nr_counters = 0; +} |
