path: root/tools/perf/util/annotate.c
diff options
authorRavi Bangoria <ravi.bangoria@linux.ibm.com>2020-02-04 10:22:31 +0530
committerArnaldo Carvalho de Melo <acme@redhat.com>2020-02-27 11:47:23 -0300
commite0560ba6d92f06dbe13e9d11c921a60c07ea6fcc (patch)
treed3c1ef8704af24adc907f22e8d57c14c251ecb09 /tools/perf/util/annotate.c
parentperf annotate: Align struct annotate_args (diff)
perf annotate: Fix segfault with source toggle
While rendering annotate browser from perf report tui, we keep track of total number of lines(asm + source) in annotation->nr_entries and total number of asm lines in annotation->nr_asm_entries. But we don't reset them before starting. Thus if user annotates same function multiple times, we restart incrementing these fields with old values. This causes a segfault when user tries to toggle source code after annotating same function multiple times. Fix it. Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.ibm.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: Ian Rogers <irogers@google.com> Cc: Jin Yao <yao.jin@linux.intel.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Song Liu <songliubraving@fb.com> Link: http://lore.kernel.org/lkml/20200204045233.474937-5-ravi.bangoria@linux.ibm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to '')
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index c816e5840166..0ea95be84b3b 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -2621,6 +2621,8 @@ void annotation__set_offsets(struct annotation *notes, s64 size)
struct annotation_line *al;
notes->max_line_len = 0;
+ notes->nr_entries = 0;
+ notes->nr_asm_entries = 0;
list_for_each_entry(al, &notes->src->source, node) {
size_t line_len = strlen(al->line);