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-rw-r--r--tools/perf/util/session.c119
1 files changed, 69 insertions, 50 deletions
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index 061bb4d6a3f5..d0d7d25b23e3 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -227,9 +227,13 @@ struct perf_session *perf_session__new(struct perf_data *data,
/* Open the directory data. */
if (data->is_dir) {
ret = perf_data__open_dir(data);
- if (ret)
- goto out_delete;
+ if (ret)
+ goto out_delete;
}
+
+ if (!symbol_conf.kallsyms_name &&
+ !symbol_conf.vmlinux_name)
+ symbol_conf.kallsyms_name = perf_data__kallsyms_name(data);
}
} else {
session->machines.host.env = &perf_env;
@@ -748,6 +752,7 @@ do { \
bswap_field_32(sample_stack_user);
bswap_field_32(aux_watermark);
bswap_field_16(sample_max_stack);
+ bswap_field_32(aux_sample_size);
/*
* After read_format are bitfields. Check read_format because
@@ -1491,8 +1496,13 @@ static int perf_session__deliver_event(struct perf_session *session,
if (ret > 0)
return 0;
- return machines__deliver_event(&session->machines, session->evlist,
- event, &sample, tool, file_offset);
+ ret = machines__deliver_event(&session->machines, session->evlist,
+ event, &sample, tool, file_offset);
+
+ if (dump_trace && sample.aux_sample.size)
+ auxtrace__dump_auxtrace_sample(session, &sample);
+
+ return ret;
}
static s64 perf_session__process_user_event(struct perf_session *session,
@@ -1649,6 +1659,34 @@ out_parse_sample:
return 0;
}
+int perf_session__peek_events(struct perf_session *session, u64 offset,
+ u64 size, peek_events_cb_t cb, void *data)
+{
+ u64 max_offset = offset + size;
+ char buf[PERF_SAMPLE_MAX_SIZE];
+ union perf_event *event;
+ int err;
+
+ do {
+ err = perf_session__peek_event(session, offset, buf,
+ PERF_SAMPLE_MAX_SIZE, &event,
+ NULL);
+ if (err)
+ return err;
+
+ err = cb(session, event, offset, data);
+ if (err)
+ return err;
+
+ offset += event->header.size;
+ if (event->header.type == PERF_RECORD_AUXTRACE)
+ offset += event->auxtrace.size;
+
+ } while (offset < max_offset);
+
+ return err;
+}
+
static s64 perf_session__process_event(struct perf_session *session,
union perf_event *event, u64 file_offset)
{
@@ -1954,8 +1992,8 @@ out_err:
}
static union perf_event *
-fetch_mmaped_event(struct perf_session *session,
- u64 head, size_t mmap_size, char *buf)
+prefetch_event(char *buf, u64 head, size_t mmap_size,
+ bool needs_swap, union perf_event *error)
{
union perf_event *event;
@@ -1967,20 +2005,32 @@ fetch_mmaped_event(struct perf_session *session,
return NULL;
event = (union perf_event *)(buf + head);
+ if (needs_swap)
+ perf_event_header__bswap(&event->header);
- if (session->header.needs_swap)
+ if (head + event->header.size <= mmap_size)
+ return event;
+
+ /* We're not fetching the event so swap back again */
+ if (needs_swap)
perf_event_header__bswap(&event->header);
- if (head + event->header.size > mmap_size) {
- /* We're not fetching the event so swap back again */
- if (session->header.needs_swap)
- perf_event_header__bswap(&event->header);
- pr_debug("%s: head=%#" PRIx64 " event->header_size=%#x, mmap_size=%#zx: fuzzed perf.data?\n",
- __func__, head, event->header.size, mmap_size);
- return ERR_PTR(-EINVAL);
- }
+ pr_debug("%s: head=%#" PRIx64 " event->header_size=%#x, mmap_size=%#zx:"
+ " fuzzed or compressed perf.data?\n",__func__, head, event->header.size, mmap_size);
+
+ return error;
+}
+
+static union perf_event *
+fetch_mmaped_event(u64 head, size_t mmap_size, char *buf, bool needs_swap)
+{
+ return prefetch_event(buf, head, mmap_size, needs_swap, ERR_PTR(-EINVAL));
+}
- return event;
+static union perf_event *
+fetch_decomp_event(u64 head, size_t mmap_size, char *buf, bool needs_swap)
+{
+ return prefetch_event(buf, head, mmap_size, needs_swap, NULL);
}
static int __perf_session__process_decomp_events(struct perf_session *session)
@@ -1993,10 +2043,8 @@ static int __perf_session__process_decomp_events(struct perf_session *session)
return 0;
while (decomp->head < decomp->size && !session_done()) {
- union perf_event *event = fetch_mmaped_event(session, decomp->head, decomp->size, decomp->data);
-
- if (IS_ERR(event))
- return PTR_ERR(event);
+ union perf_event *event = fetch_decomp_event(decomp->head, decomp->size, decomp->data,
+ session->header.needs_swap);
if (!event)
break;
@@ -2096,7 +2144,7 @@ remap:
}
more:
- event = fetch_mmaped_event(session, head, mmap_size, buf);
+ event = fetch_mmaped_event(head, mmap_size, buf, session->header.needs_swap);
if (IS_ERR(event))
return PTR_ERR(event);
@@ -2355,35 +2403,6 @@ void perf_session__fprintf_info(struct perf_session *session, FILE *fp,
fprintf(fp, "# ========\n#\n");
}
-
-int __perf_session__set_tracepoints_handlers(struct perf_session *session,
- const struct evsel_str_handler *assocs,
- size_t nr_assocs)
-{
- struct evsel *evsel;
- size_t i;
- int err;
-
- for (i = 0; i < nr_assocs; i++) {
- /*
- * Adding a handler for an event not in the session,
- * just ignore it.
- */
- evsel = perf_evlist__find_tracepoint_by_name(session->evlist, assocs[i].name);
- if (evsel == NULL)
- continue;
-
- err = -EEXIST;
- if (evsel->handler != NULL)
- goto out;
- evsel->handler = assocs[i].handler;
- }
-
- err = 0;
-out:
- return err;
-}
-
int perf_event__process_id_index(struct perf_session *session,
union perf_event *event)
{