> On 29 Nov 2024, at 14:49, Yury Khrustalev <yury.khrusta...@arm.com> wrote:
>
> Including the "arm_acle.h" header in aarch64-unwind.h requires
> stdint.h to be present and it may not be available during the
> first stage of cross-compilation of GCC.
>
> When cross-building GCC for the aarch64-none-linux-gnu target
> (on any supporting host) using the 3-stage bootstrap build
> process when we build native compiler from source, libgcc fails
> to compile due to missing header that has not been installed yet.
>
> This could be worked around but it's better to fix the issue.
>
Ok.
Thanks,
Kyrill
> libgcc/ChangeLog:
>
> * config/aarch64/aarch64-unwind.h (_CHKFEAT_GCS): Add.
>
> ---
>
> Regression tested on aarch64-unknown-linux-gnu and no regressions have been
> found.
> Is this OK for trunk?
> Applies to fe29b03825c.
>
> Thanks,
> Yury
>
> ---
> libgcc/config/aarch64/aarch64-unwind.h | 3 +--
> 1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/libgcc/config/aarch64/aarch64-unwind.h
> b/libgcc/config/aarch64/aarch64-unwind.h
> index 85468f9685e..d11753a0e03 100644
> --- a/libgcc/config/aarch64/aarch64-unwind.h
> +++ b/libgcc/config/aarch64/aarch64-unwind.h
> @@ -29,7 +29,6 @@ see the files COPYING3 and COPYING.RUNTIME respectively.
> If not, see
>
> #include "ansidecl.h"
> #include <stdbool.h>
> -#include <arm_acle.h>
>
> #define AARCH64_DWARF_REGNUM_RA_STATE 34
> #define AARCH64_DWARF_RA_STATE_MASK 0x1
> @@ -180,7 +179,7 @@ aarch64_demangle_return_addr (struct _Unwind_Context
> *context,
> }
>
> /* GCS enable flag for chkfeat instruction. */
> -
> +#define _CHKFEAT_GCS 1
> /* SME runtime function local to libgcc, streaming compatible
> and preserves more registers than the base PCS requires, but
> we don't rely on that here. */
> --
> 2.39.5
>
