[PATCH] [PATCH v2] AARCH64: Add gcc Shadow Call Stack support

[Miguel Ojeda]

On Fri, Feb 25, 2022 at 4:24 AM Dan Li <ashimida at linux.alibaba.com> wrote:
>
> +         - Clang (https://clang.llvm.org/docs/ShadowCallStack.html)
> +         - GCC (https://gcc.gnu.org/onlinedocs/gcc/Instrumentation-Options.html#Instrumentation-Options)

Maybe Clang: and GCC: instead of the parenthesis?

> +#ifdef CONFIG_SHADOW_CALL_STACK
> +#define __noscs __attribute__((__no_sanitize__("shadow-call-stack")))
> +#endif

Since both compilers have it, and I guess the `#ifdef` condition would
work for both, could this be moved into `compiler_types.h` where the
empty `__noscs` definition is, and remove the one from
`compiler-clang.h`?

Cheers,
Miguel