Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1253272

[PATCH 5/5] perf annotate: Add debug message for out of bounds sample

Show all headers | View raw

From: Arnaldo Carvalho de Melo <acme@redhat.com>

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-q0lde9ajs84oi38nlyjcqbwg@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/annotate.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index d1eece70b84d..0fc8d7a2fea5 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -548,8 +548,11 @@ static int __symbol__inc_addr_samples(struct symbol *sym, struct map *map,
 
 	pr_debug3("%s: addr=%#" PRIx64 "\n", __func__, map->unmap_ip(map, addr));
 
-	if (addr < sym->start || addr >= sym->end)
+	if (addr < sym->start || addr >= sym->end) {
+		pr_debug("%s(%d): ERANGE! sym->name=%s, start=%#" PRIx64 ", addr=%#" PRIx64 ", end=%#" PRIx64 "\n",
+		       __func__, __LINE__, sym->name, sym->start, addr, sym->end);
 		return -ERANGE;
+	}
 
 	offset = addr - sym->start;
 	h = annotation__histogram(notes, evidx);
-- 
2.1.0

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Back to linux.kernel | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

[GIT PULL 0/5] perf/core improvements and fixes Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-10-21 23:40 +0200
  [PATCH 4/5] perf evsel: Print branch filter state with -vv Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-10-21 23:40 +0200
  [PATCH 5/5] perf annotate: Add debug message for out of bounds sample Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-10-21 23:40 +0200
  Re: [GIT PULL 0/5] perf/core improvements and fixes Ingo Molnar <mingo@kernel.org> - 2015-10-22 09:40 +0200

csiph-web