On Wed, May 22, 2024 at 12:56:48AM +0000, Edward Liaw wrote:
From: Mark Brown broonie@kernel.org
Commit daef47b89efd0b7 ("selftests: Compile kselftest headers with -D_GNU_SOURCE") adds a static_assert() which means that things which would be warnings about undeclared functions get escalated into build failures. While we do actually want _GNU_SOURCE to be defined for users of kselftest_harness we haven't actually done that yet and this is causing widespread build breaks which were previously warnings about uses of asprintf() without prototypes, including causing other test programs in the same directory to fail to build.
Since the build failures that are introduced cause additional issues due to make stopping builds early replace the static_assert() with a missing without making the error more severe than it already was. This will be moot once the issue is fixed properly but reduces the disruption while that happens.
Signed-off-by: Mark Brown broonie@kernel.org Reviewed-by: Kees Cook keescook@chromium.org
tools/testing/selftests/kselftest_harness.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/testing/selftests/kselftest_harness.h b/tools/testing/selftests/kselftest_harness.h index b634969cbb6f..8e53686b71cb 100644 --- a/tools/testing/selftests/kselftest_harness.h +++ b/tools/testing/selftests/kselftest_harness.h @@ -51,7 +51,7 @@ #define __KSELFTEST_HARNESS_H #ifndef _GNU_SOURCE -#define _GNU_SOURCE +#warning kselftest harness requires _GNU_SOURCE to be defined
Maybe this should be `#error` if it really requires?
Thanks,
#endif #include <asm/types.h>
#include <ctype.h>
2.45.1.288.g0e0cd299f1-goog