http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55739
--- Comment #7 from H.J. Lu <hjl.tools at gmail dot com> 2013-01-15 02:19:55 UTC --- There are already R_386_SIZE32 38 word32 Z + A R_X86_64_SIZE32 32 word32 Z + A R_X86_64_SIZE64 33 word64 Z + A They should work here.