https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82379
--- Comment #4 from H.J. Lu <hjl.tools at gmail dot com> ---
(In reply to Steven Noonan from comment #3)
> Are you sure that patch is sufficient? __x86_64__ is defined on both the
> normal x86_64 ABI and on the x32 ABI. The combination most often used to
> identify x32 is 'defined(__x86_64__) && defined(__ILP32__)'
>
> I've currently got this patch applied locally which allows me to build
> against the x32 ABI with -fsanitize=foo:
>
> diff --git a/libsanitizer/sanitizer_common/sanitizer_linux.cc
> b/libsanitizer/sanitizer_common/sanitizer_linux.cc
> index 5b6f18602e7..a11592614a4 100644
> --- a/libsanitizer/sanitizer_common/sanitizer_linux.cc
> +++ b/libsanitizer/sanitizer_common/sanitizer_linux.cc
> @@ -674,7 +674,7 @@ int internal_sigaction_syscall(int signum, const void
> *act, void *oldact) {
> return internal_sigaction_norestorer(signum, act, oldact);
> __sanitizer_sigaction u_adjust;
> internal_memcpy(&u_adjust, act, sizeof(u_adjust));
> -#if !SANITIZER_ANDROID || !SANITIZER_MIPS32
> +#if (!SANITIZER_ANDROID || !SANITIZER_MIPS32) && !defined(__ILP32__)
> if (u_adjust.sa_restorer == nullptr) {
> u_adjust.sa_restorer = internal_sigreturn;
> }
I don't believe this is correct. Please try my patch.
