https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85663
--- Comment #3 from Sergei Trofimovich <slyfox at inbox dot ru> --- Created attachment 44077 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44077&action=edit gcc-8.1.0-mips-o32-asan.patch gcc-8.1.0-mips-o32-asan.patch is enough to get asan cross-compiled on o32 ABI.