Re: [PATCH] string.h: work around for increased stack usage

[Arnd Bergmann]

On Mon, Oct 2, 2017 at 10:40 AM, Arnd Bergmann <arnd@xxxxxxxx> wrote:
>
>  void fortify_panic(const char *name) __noreturn __cold;
> +
> +/* work around GCC PR82365 */
> +#if defined(CONFIG_KASAN) && !defined(__clang__) && GCC_VERSION <= 80000
> +#define fortify_panic(x) \
> +       do { \
> +               asm volatile(""); \
> +               fortify_panic(x); \
> +       } while (0)
> +#endif

This broke the build for the fortify_panic() definition in lib/string.c which
clashes with the macro. I've fixed it locally by renaming it to __fortify_panic,
but won't post the fixed version until I get some feedback on the basic
approach.

      Arnd