Re: [PATCH] libsanitizer: cherry-pick commit 05551c658269 from upstream

["Martin Liška" <mliska@suse.cz>]

On 4/27/23 04:32, H.J. Lu via Gcc-patches wrote:
> cherry-pick:

Can you please wait a few days before it? I'm going to merge again
in the near future after https://reviews.llvm.org/D144073 got handled.

Martin

> 
> 05551c658269 [sanitizer] Correct alignment of x32 __sanitizer_siginfo
> 
> 	* sanitizer_common/sanitizer_platform_limits_posix.h
> 	(__sanitizer_siginfo_pad): Use u64 to align x32
> 	__sanitizer_siginfo to 8 bytes.
> ---
>  .../sanitizer_common/sanitizer_platform_limits_posix.h       | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h b/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h
> index cfca7bdedbe..e6f298c26e1 100644
> --- a/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h
> +++ b/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h
> @@ -578,8 +578,13 @@ struct __sanitizer_sigset_t {
>  #endif
>  
>  struct __sanitizer_siginfo_pad {
> +#if SANITIZER_X32
> +  // x32 siginfo_t is aligned to 8 bytes.
> +  u64 pad[128 / sizeof(u64)];
> +#else
>    // Require uptr, because siginfo_t is always pointer-size aligned on Linux.
>    uptr pad[128 / sizeof(uptr)];
> +#endif
>  };
>  
>  #if SANITIZER_LINUX