smash_stack() intentionally crashes.

Prevent UBSAN from tripping over it.

Signed-off-by: Thomas Weißschuh <[email protected]>
---
 tools/testing/selftests/nolibc/nolibc-test.c | 1 +
 1 file changed, 1 insertion(+)

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];

-- 
2.49.0


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