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authorIngo Molnar <mingo@kernel.org>2018-05-15 08:20:45 +0200
committerIngo Molnar <mingo@kernel.org>2018-05-15 08:20:45 +0200
commitf3903c9161f0d636a7b0ff03841628928457e64c (patch)
tree3a4d0e3c31663f7f5b51fe12f22f6e1d9bd456b5
parent67b8d5c7081221efa252e111cd52532ec6d4266f (diff)
parentc23080a6e4e853cff2834436e3cf33eae7723900 (diff)
Merge tag 'perf-urgent-for-mingo-4.17-20180514' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent
Pull perf/urgent fixes from Arnaldo Carvalho de Melo: - Fix segfault when processing unknown threads in cs-etm (Leo Yan) - Fix "perf test inet_pton" on s390 failing due to missing inline (Thomas Richter) - Display all available events on 'perf annotate --stdio' (Jin Yao) - Add missing newline when parsing empty BPF proggie (Arnaldo Carvalho de Melo) Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Ingo Molnar <mingo@kernel.org>
-rwxr-xr-xtools/perf/tests/shell/record+probe_libc_inet_pton.sh2
-rw-r--r--tools/perf/util/annotate.c3
-rw-r--r--tools/perf/util/cs-etm.c28
-rw-r--r--tools/perf/util/parse-events.c2
4 files changed, 29 insertions, 6 deletions
diff --git a/tools/perf/tests/shell/record+probe_libc_inet_pton.sh b/tools/perf/tests/shell/record+probe_libc_inet_pton.sh
index 016882dbbc16..ee86473643be 100755
--- a/tools/perf/tests/shell/record+probe_libc_inet_pton.sh
+++ b/tools/perf/tests/shell/record+probe_libc_inet_pton.sh
@@ -16,7 +16,7 @@ nm -g $libc 2>/dev/null | fgrep -q inet_pton || exit 254
trace_libc_inet_pton_backtrace() {
idx=0
expected[0]="ping[][0-9 \.:]+probe_libc:inet_pton: \([[:xdigit:]]+\)"
- expected[1]=".*inet_pton[[:space:]]\($libc\)$"
+ expected[1]=".*inet_pton[[:space:]]\($libc|inlined\)$"
case "$(uname -m)" in
s390x)
eventattr='call-graph=dwarf,max-stack=4'
diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index 536ee148bff8..5d74a30fe00f 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -1263,6 +1263,9 @@ annotation_line__print(struct annotation_line *al, struct symbol *sym, u64 start
max_percent = sample->percent;
}
+ if (al->samples_nr > nr_percent)
+ nr_percent = al->samples_nr;
+
if (max_percent < min_pcnt)
return -1;
diff --git a/tools/perf/util/cs-etm.c b/tools/perf/util/cs-etm.c
index 40020b1ca54f..bf16dc9ee507 100644
--- a/tools/perf/util/cs-etm.c
+++ b/tools/perf/util/cs-etm.c
@@ -239,6 +239,7 @@ static void cs_etm__free(struct perf_session *session)
for (i = 0; i < aux->num_cpu; i++)
zfree(&aux->metadata[i]);
+ thread__zput(aux->unknown_thread);
zfree(&aux->metadata);
zfree(&aux);
}
@@ -612,8 +613,8 @@ cs_etm__get_trace(struct cs_etm_buffer *buff, struct cs_etm_queue *etmq)
return buff->len;
}
-static void cs_etm__set_pid_tid_cpu(struct cs_etm_auxtrace *etm,
- struct auxtrace_queue *queue)
+static void cs_etm__set_pid_tid_cpu(struct cs_etm_auxtrace *etm,
+ struct auxtrace_queue *queue)
{
struct cs_etm_queue *etmq = queue->priv;
@@ -1357,6 +1358,23 @@ int cs_etm__process_auxtrace_info(union perf_event *event,
etm->auxtrace.free = cs_etm__free;
session->auxtrace = &etm->auxtrace;
+ etm->unknown_thread = thread__new(999999999, 999999999);
+ if (!etm->unknown_thread)
+ goto err_free_queues;
+
+ /*
+ * Initialize list node so that at thread__zput() we can avoid
+ * segmentation fault at list_del_init().
+ */
+ INIT_LIST_HEAD(&etm->unknown_thread->node);
+
+ err = thread__set_comm(etm->unknown_thread, "unknown", 0);
+ if (err)
+ goto err_delete_thread;
+
+ if (thread__init_map_groups(etm->unknown_thread, etm->machine))
+ goto err_delete_thread;
+
if (dump_trace) {
cs_etm__print_auxtrace_info(auxtrace_info->priv, num_cpu);
return 0;
@@ -1371,16 +1389,18 @@ int cs_etm__process_auxtrace_info(union perf_event *event,
err = cs_etm__synth_events(etm, session);
if (err)
- goto err_free_queues;
+ goto err_delete_thread;
err = auxtrace_queues__process_index(&etm->queues, session);
if (err)
- goto err_free_queues;
+ goto err_delete_thread;
etm->data_queued = etm->queues.populated;
return 0;
+err_delete_thread:
+ thread__zput(etm->unknown_thread);
err_free_queues:
auxtrace_queues__free(&etm->queues);
session->auxtrace = NULL;
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index 2fb0272146d8..b8b8a9558d32 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -1715,7 +1715,7 @@ int parse_events(struct perf_evlist *evlist, const char *str,
struct perf_evsel *last;
if (list_empty(&parse_state.list)) {
- WARN_ONCE(true, "WARNING: event parser found nothing");
+ WARN_ONCE(true, "WARNING: event parser found nothing\n");
return -1;
}