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[v2,6/7] selftests/nolibc: disable ubsan for smash_stack()

Message ID 20250419-nolibc-ubsan-v2-6-060b8a016917@weissschuh.net
State New
Headers show
Series tools/nolibc: fix some undefined behaviour and enable UBSAN | expand

Commit Message

Thomas Weißschuh April 19, 2025, 10:46 a.m. UTC 
smash_stack() intentionally crashes.

Prevent UBSAN from tripping over it.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
---
 tools/testing/selftests/nolibc/nolibc-test.c | 1 +
 1 file changed, 1 insertion(+)
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Patch

diff --git a/tools/testing/selftests/nolibc/nolibc-test.c b/tools/testing/selftests/nolibc/nolibc-test.c
index 7a60b6ac1457e8d862ab1a6a26c9e46abec92111..b176a706609b7641dd1d743c8a02b6b6e7a4c746 100644
--- a/tools/testing/selftests/nolibc/nolibc-test.c
+++ b/tools/testing/selftests/nolibc/nolibc-test.c
@@ -1438,6 +1438,7 @@  static int run_vfprintf(int min, int max)
 	return ret;
 }
 
+__attribute__((no_sanitize("undefined")))
 static int smash_stack(void)
 {
 	char buf[100];