On Wed, Apr 22, 2026 at 06:01:39PM +0100, Leo Yan wrote: > Building on Debian sid with GCC 15 fails:
> GCC-15 defines NT_ARM_GCS in the toolchain headers, causing gcs-util.h > to skip its fallback definition of struct user_gcs. This leads to the > compiler error. Are you sure it's GCC and not libc? Anyway... > tools/testing/selftests/arm64/gcs/libc-gcs.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/tools/testing/selftests/arm64/gcs/libc-gcs.c > b/tools/testing/selftests/arm64/gcs/libc-gcs.c > index > 17b2fabfec386e523e788d8bcfcafa553c93bd9b..72e82bfbecc99e34da71d56cf5401c137d6e9a48 > 100644 > --- a/tools/testing/selftests/arm64/gcs/libc-gcs.c > +++ b/tools/testing/selftests/arm64/gcs/libc-gcs.c > @@ -16,6 +16,7 @@ > > #include <asm/hwcap.h> > #include <asm/mman.h> > +#include <asm/ptrace.h> Shouldn't this be in gcs-util.h where the local definition is?
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