[PATCH v2 nolibc 28/53] tools/nolibc: add test for __stack_chk_guard initialization

From: Paul E. McKenney
Date: Mon Jun 12 2023 - 16:49:08 EST


From: Thomas Weißschuh <linux@xxxxxxxxxxxxxx>

Signed-off-by: Thomas Weißschuh <linux@xxxxxxxxxxxxxx>
Signed-off-by: Willy Tarreau <w@xxxxxx>
Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxx>
---
tools/testing/selftests/nolibc/nolibc-test.c | 8 ++++++++
1 file changed, 8 insertions(+)

diff --git a/tools/testing/selftests/nolibc/nolibc-test.c b/tools/testing/selftests/nolibc/nolibc-test.c
index d5d4dea63cd6..861b9a74b71f 100644
--- a/tools/testing/selftests/nolibc/nolibc-test.c
+++ b/tools/testing/selftests/nolibc/nolibc-test.c
@@ -808,6 +808,14 @@ static int run_protection(int min, int max)
return 0;
#endif

+#if defined(NOLIBC_STACKPROTECTOR)
+ if (!__stack_chk_guard) {
+ llen += printf("__stack_chk_guard not initialized");
+ pad_spc(llen, 64, "[FAIL]\n");
+ return 1;
+ }
+#endif
+
pid = -1;
pid = fork();

--
2.40.1