diff options
Diffstat (limited to 'tools/perf/util/callchain.c')
| -rw-r--r-- | tools/perf/util/callchain.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/tools/perf/util/callchain.c b/tools/perf/util/callchain.c index db628af6d20d..ac148613afe8 100644 --- a/tools/perf/util/callchain.c +++ b/tools/perf/util/callchain.c @@ -17,6 +17,13 @@ #include "callchain.h" +bool ip_callchain__valid(struct ip_callchain *chain, event_t *event) +{ + unsigned int chain_size = event->header.size; + chain_size -= (unsigned long)&event->ip.__more_data - (unsigned long)event; + return chain->nr * sizeof(u64) <= chain_size; +} + #define chain_for_each_child(child, parent) \ list_for_each_entry(child, &parent->children, brothers) |