https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93731
--- Comment #7 from ro at CeBiTec dot Uni-Bielefeld.DE <ro at CeBiTec dot Uni-Bielefeld.DE> --- > --- Comment #2 from ro at CeBiTec dot Uni-Bielefeld.DE <ro at CeBiTec dot > Uni-Bielefeld.DE> --- >> --- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> --- [... >> Of course, trying to workaround kernel bugs this way is weird, but if it >> isn't >> supported anymore or Apple isn't willing to fix their bugs... > > Mac OS X 10.7 is almost 9 years old by now and long past support. I > don't feel particularly inclined to reghunt which gcc/sanitizer change > caused this, let alone debug the Darwin kernel either. I've since experimented a bit more: 32-bit 10.7 is affected just the same. Afterwards, I've copied both the 32 and 64-bit alloca_big_alignment.exe and the corresponding libasan.6.dylib and libgcc_s.1.dylib to a 10.8 VM where they run just fine, so this is obviously 10.7-only issue. While working on this, I've created VirtualBox VMs for every single macOS release between 10.7 and 10.15, each with the latest updates and last supported Xcode version installed and ready for experiments if needed.
