OK with one minor comment:
> diff --git a/gcc/config/riscv/linux.h b/gcc/config/riscv/linux.h
> index 9060c940a44..c1cfa9bf28a 100644
> --- a/gcc/config/riscv/linux.h
> +++ b/gcc/config/riscv/linux.h
> @@ -61,6 +61,8 @@ along with GCC; see the file COPYING3. If not see
> -dynamic-linker " GNU_USER_DYNAMIC_LINKER "}} \
> %{static:-static} %{static-pie:-static -pie --no-dynamic-linker -z
> text}}"
>
> +#define TARGET_ASM_FILE_END riscv_file_end_indicate_exec_stack
Drop this and update the definition within riscv.cc.
