* [PATCH] pointer-compare-1.c: Add __attribute__((used))
@ 2020-11-16 12:10 H.J. Lu
0 siblings, 0 replies; only message in thread
From: H.J. Lu @ 2020-11-16 12:10 UTC (permalink / raw)
To: gcc-patches
I am going to install this patch as requested:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97803#c5
H.J.
---
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 | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/gcc/testsuite/c-c++-common/asan/pointer-compare-1.c b/gcc/testsuite/c-c++-common/asan/pointer-compare-1.c
index 1ce349e4917..4b558bf8179 100644
--- a/gcc/testsuite/c-c++-common/asan/pointer-compare-1.c
+++ b/gcc/testsuite/c-c++-common/asan/pointer-compare-1.c
@@ -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
--
2.28.0
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