[PATCH 1/2] selftests/nolibc: explicitly handle ENOSYS from ptrace()
From: Thomas Weißschuh
Date: Mon Apr 06 2026 - 16:04:59 EST
The automatic ENOSYS handling in EXPECT_SYSER() is about to be removed.
ptrace() will return legitimately return ENOSYS on qemu-user, so handle
it explicitly.
Signed-off-by: Thomas Weißschuh <linux@xxxxxxxxxxxxxx>
---
tools/testing/selftests/nolibc/nolibc-test.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/testing/selftests/nolibc/nolibc-test.c b/tools/testing/selftests/nolibc/nolibc-test.c
index dd10402267ee..9f24b98fb578 100644
--- a/tools/testing/selftests/nolibc/nolibc-test.c
+++ b/tools/testing/selftests/nolibc/nolibc-test.c
@@ -1504,7 +1504,7 @@ int run_syscall(int min, int max)
CASE_TEST(readv_zero); EXPECT_SYSZR(1, readv(0, NULL, 0)); break;
CASE_TEST(writev_badf); EXPECT_SYSER(1, writev(-1, &iov_one, 1), -1, EBADF); break;
CASE_TEST(writev_zero); EXPECT_SYSZR(1, writev(1, NULL, 0)); break;
- CASE_TEST(ptrace); EXPECT_SYSER(1, ptrace(PTRACE_CONT, getpid(), NULL, NULL), -1, ESRCH); break;
+ CASE_TEST(ptrace); tmp = ptrace(PTRACE_CONT, getpid(), NULL, NULL); EXPECT_SYSER(tmp != -1 && errno != ENOSYS, tmp, -1, EFAULT); break;
CASE_TEST(syscall_noargs); EXPECT_SYSEQ(1, syscall(__NR_getpid), getpid()); break;
CASE_TEST(syscall_args); EXPECT_SYSER(1, syscall(__NR_statx, 0, NULL, 0, 0, NULL), -1, EFAULT); break;
CASE_TEST(namespace); EXPECT_SYSZR(euid0 && proc, test_namespace()); break;
--
2.53.0