https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59432
--- Comment #7 from Uroš Bizjak <ubizjak at gmail dot com> --- Please see [1] for the explanation of this problem. Your system doesn't support .cfi directives and the referred patch doesn't handle this situation. Since EBX register is marked as fixed, there is nothing we can do. [1] https://gcc.gnu.org/ml/gcc-patches/2013-11/msg00309.html
