diff options
Diffstat (limited to 'tools/perf/util/evsel.c')
-rw-r--r-- | tools/perf/util/evsel.c | 88 |
1 files changed, 72 insertions, 16 deletions
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c index 00936ad29ff2..ffdd94e9c9c3 100644 --- a/tools/perf/util/evsel.c +++ b/tools/perf/util/evsel.c @@ -70,7 +70,7 @@ struct perf_evsel *perf_evsel__new(struct perf_event_attr *attr, int idx) return evsel; } -static struct event_format *event_format__new(const char *sys, const char *name) +struct event_format *event_format__new(const char *sys, const char *name) { int fd, n; char *filename; @@ -117,21 +117,28 @@ struct perf_evsel *perf_evsel__newtp(const char *sys, const char *name, int idx) if (evsel != NULL) { struct perf_event_attr attr = { - .type = PERF_TYPE_TRACEPOINT, + .type = PERF_TYPE_TRACEPOINT, + .sample_type = (PERF_SAMPLE_RAW | PERF_SAMPLE_TIME | + PERF_SAMPLE_CPU | PERF_SAMPLE_PERIOD), }; + if (asprintf(&evsel->name, "%s:%s", sys, name) < 0) + goto out_free; + evsel->tp_format = event_format__new(sys, name); if (evsel->tp_format == NULL) goto out_free; + event_attr_init(&attr); attr.config = evsel->tp_format->id; + attr.sample_period = 1; perf_evsel__init(evsel, &attr, idx); - evsel->name = evsel->tp_format->name; } return evsel; out_free: + free(evsel->name); free(evsel); return NULL; } @@ -501,6 +508,24 @@ int perf_evsel__alloc_fd(struct perf_evsel *evsel, int ncpus, int nthreads) return evsel->fd != NULL ? 0 : -ENOMEM; } +int perf_evsel__set_filter(struct perf_evsel *evsel, int ncpus, int nthreads, + const char *filter) +{ + int cpu, thread; + + for (cpu = 0; cpu < ncpus; cpu++) { + for (thread = 0; thread < nthreads; thread++) { + int fd = FD(evsel, cpu, thread), + err = ioctl(fd, PERF_EVENT_IOC_SET_FILTER, filter); + + if (err) + return err; + } + } + + return 0; +} + int perf_evsel__alloc_id(struct perf_evsel *evsel, int ncpus, int nthreads) { evsel->sample_id = xyarray__new(ncpus, nthreads, sizeof(struct perf_sample_id)); @@ -562,10 +587,8 @@ void perf_evsel__delete(struct perf_evsel *evsel) perf_evsel__exit(evsel); close_cgroup(evsel->cgrp); free(evsel->group_name); - if (evsel->tp_format && evsel->name == evsel->tp_format->name) { - evsel->name = NULL; + if (evsel->tp_format) pevent_free_format(evsel->tp_format); - } free(evsel->name); free(evsel); } @@ -763,11 +786,13 @@ int perf_evsel__open_per_thread(struct perf_evsel *evsel, return __perf_evsel__open(evsel, &empty_cpu_map.map, threads); } -static int perf_event__parse_id_sample(const union perf_event *event, u64 type, - struct perf_sample *sample, - bool swapped) +static int perf_evsel__parse_id_sample(const struct perf_evsel *evsel, + const union perf_event *event, + struct perf_sample *sample) { + u64 type = evsel->attr.sample_type; const u64 *array = event->sample.array; + bool swapped = evsel->needs_swap; union u64_swap u; array += ((event->header.size - @@ -828,10 +853,11 @@ static bool sample_overlap(const union perf_event *event, } int perf_evsel__parse_sample(struct perf_evsel *evsel, union perf_event *event, - struct perf_sample *data, bool swapped) + struct perf_sample *data) { u64 type = evsel->attr.sample_type; u64 regs_user = evsel->attr.sample_regs_user; + bool swapped = evsel->needs_swap; const u64 *array; /* @@ -848,7 +874,7 @@ int perf_evsel__parse_sample(struct perf_evsel *evsel, union perf_event *event, if (event->header.type != PERF_RECORD_SAMPLE) { if (!evsel->attr.sample_id_all) return 0; - return perf_event__parse_id_sample(event, type, data, swapped); + return perf_evsel__parse_id_sample(evsel, event, data); } array = event->sample.array; @@ -1078,7 +1104,7 @@ struct format_field *perf_evsel__field(struct perf_evsel *evsel, const char *nam return pevent_find_field(evsel->tp_format, name); } -char *perf_evsel__strval(struct perf_evsel *evsel, struct perf_sample *sample, +void *perf_evsel__rawptr(struct perf_evsel *evsel, struct perf_sample *sample, const char *name) { struct format_field *field = perf_evsel__field(evsel, name); @@ -1101,13 +1127,43 @@ u64 perf_evsel__intval(struct perf_evsel *evsel, struct perf_sample *sample, const char *name) { struct format_field *field = perf_evsel__field(evsel, name); - u64 val; + void *ptr; + u64 value; if (!field) return 0; - val = pevent_read_number(evsel->tp_format->pevent, - sample->raw_data + field->offset, field->size); - return val; + ptr = sample->raw_data + field->offset; + switch (field->size) { + case 1: + return *(u8 *)ptr; + case 2: + value = *(u16 *)ptr; + break; + case 4: + value = *(u32 *)ptr; + break; + case 8: + value = *(u64 *)ptr; + break; + default: + return 0; + } + + if (!evsel->needs_swap) + return value; + + switch (field->size) { + case 2: + return bswap_16(value); + case 4: + return bswap_32(value); + case 8: + return bswap_64(value); + default: + return 0; + } + + return 0; } |