linux-kernel - [PATCH] perf, tool: Fix array sizes for binary types arrays

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Date:	Wed,  1 Aug 2012 14:47:57 +0200
From:	Jiri Olsa <jolsa@...hat.com>
To:	acme@...stprotocols.net, a.p.zijlstra@...llo.nl, mingo@...hat.com,
	paulus@...ba.org
Cc:	linux-kernel@...r.kernel.org, markus@...ppelsdorf.de,
	Jiri Olsa <jolsa@...hat.com>
Subject: [PATCH] perf, tool: Fix array sizes for binary types arrays

Following commit introduced wrong array boundaries, that could
lead to SIGSEGV.

  perf symbols: Factor DSO symtab types to generic binary types
  commit 44f24cb3156a1e7d2b6bb501b7f6153aed08994c
  Author: Jiri Olsa <jolsa@...hat.com>

Fixing to use proper array size.

Reported-by: Markus Trippelsdorf <markus@...ppelsdorf.de>
Signed-off-by: Jiri Olsa <jolsa@...hat.com>
---
 tools/perf/util/symbol.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index fdad4eee..fe86612 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -64,7 +64,7 @@ static enum dso_binary_type binary_type_symtab[] = {
 	DSO_BINARY_TYPE__NOT_FOUND,
 };
 
-#define DSO_BINARY_TYPE__SYMTAB_CNT sizeof(binary_type_symtab)
+#define DSO_BINARY_TYPE__SYMTAB_CNT ARRAY_SIZE(binary_type_symtab)
 
 static enum dso_binary_type binary_type_data[] = {
 	DSO_BINARY_TYPE__BUILD_ID_CACHE,
@@ -72,7 +72,7 @@ static enum dso_binary_type binary_type_data[] = {
 	DSO_BINARY_TYPE__NOT_FOUND,
 };
 
-#define DSO_BINARY_TYPE__DATA_CNT sizeof(binary_type_data)
+#define DSO_BINARY_TYPE__DATA_CNT ARRAY_SIZE(binary_type_data)
 
 int dso__name_len(const struct dso *dso)
 {
-- 
1.7.7.6

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