From a985fe638344492727528e52416211dda1c391d5 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Thomas=20Wei=C3=9Fschuh?= Date: Thu, 21 Aug 2025 17:13:03 +0200 Subject: [PATCH] kselftest/arm64/gcs: Use nolibc's getauxval() MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Nolibc now does have getauxval(), use it. Signed-off-by: Thomas Weißschuh Reviewed-by: Mark Brown Signed-off-by: Will Deacon --- tools/testing/selftests/arm64/gcs/basic-gcs.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/tools/testing/selftests/arm64/gcs/basic-gcs.c b/tools/testing/selftests/arm64/gcs/basic-gcs.c index 100d2a983155f..250977abc3988 100644 --- a/tools/testing/selftests/arm64/gcs/basic-gcs.c +++ b/tools/testing/selftests/arm64/gcs/basic-gcs.c @@ -10,6 +10,7 @@ #include #include +#include #include #include "kselftest.h" @@ -386,14 +387,13 @@ int main(void) ksft_print_header(); - /* - * We don't have getauxval() with nolibc so treat a failure to - * read GCS state as a lack of support and skip. - */ + if (!(getauxval(AT_HWCAP) & HWCAP_GCS)) + ksft_exit_skip("SKIP GCS not supported\n"); + ret = my_syscall5(__NR_prctl, PR_GET_SHADOW_STACK_STATUS, &gcs_mode, 0, 0, 0); if (ret != 0) - ksft_exit_skip("Failed to read GCS state: %d\n", ret); + ksft_exit_fail_msg("Failed to read GCS state: %d\n", ret); if (!(gcs_mode & PR_SHADOW_STACK_ENABLE)) { gcs_mode = PR_SHADOW_STACK_ENABLE; -- 2.47.3