Commit-ID: 289c082044643e55f65c6a16bb3621cf3f35a454
Gitweb: http://git.kernel.org/tip/289c082044643e55f65c6a16bb3621cf3f35a454
Author: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
AuthorDate: Wed, 9 Feb 2011 13:56:28 -0200
Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Wed, 16 Feb 2011 14:47:55 -0200
perf annotate: Check if offset is less than symbol size
Just like done on symbol__inc_addr_samples to catch misparsed offsets
from objdump.
Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxx>
Cc: Mike Galbraith <efault@xxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Stephane Eranian <eranian@xxxxxxxxxx>
Cc: Tom Zanussi <tzanussi@xxxxxxxxx>
LKML-Reference: <new-submission>
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/util/annotate.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index 02976b8..70ec422 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -541,11 +541,12 @@ void symbol__annotate_decay_histogram(struct symbol *sym, int evidx)
struct annotation *notes = symbol__annotation(sym);
struct sym_hist *h = annotation__histogram(notes, evidx);
struct objdump_line *pos;
+ int len = sym->end - sym->start;
h->sum = 0;
list_for_each_entry(pos, ¬es->src->source, node) {
- if (pos->offset != -1) {
+ if (pos->offset != -1 && pos->offset < len) {
h->addr[pos->offset] = h->addr[pos->offset] * 7 / 8;
h->sum += h->addr[pos->offset];
}
--
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