pointer-compare-1.c: Add __attribute__((used))
authorH.J. Lu <hjl.tools@gmail.com>
Wed, 11 Nov 2020 23:54:00 +0000 (15:54 -0800)
committerH.J. Lu <hjl.tools@gmail.com>
Mon, 16 Nov 2020 12:10:50 +0000 (04:10 -0800)
c-c++-common/asan/pointer-compare-1.c assumes the certain order for
variable placement.  Add __attribute__((used)) to avoid variable
placement changes due to SHF_GNU_RETAIN.

PR testsuite/97803
* c-c++-common/asan/pointer-compare-1.c (global1): Add
__attribute__((used))
(global2): Likewise.
(small_global): Likewise.
(large_global): Likewise.

gcc/testsuite/c-c++-common/asan/pointer-compare-1.c

index 1ce349e4917a6c5ac0506b99cfd214fbe9fffdde..4b558bf8179a75bc8165823c729e763a299f6903 100644 (file)
@@ -14,12 +14,13 @@ foo (char *p, char *q)
   v = p > q;
 }
 
-char global1[100] = {}, global2[100] = {};
+char __attribute__((used)) global1[100] = {};
+char __attribute__((used)) global2[100] = {};
 char __attribute__((used)) smallest_global[5] = {};
-char small_global[7] = {};
+char __attribute__((used)) small_global[7] = {};
 char __attribute__((used)) little_global[10] = {};
 char __attribute__((used)) medium_global[4000] = {};
-char large_global[5000] = {};
+char __attribute__((used)) large_global[5000] = {};
 char __attribute__((used)) largest_global[6000] = {};
 
 int