http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51852
--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> 2012-01-14 07:20:06 UTC --- >The message "Unhandled dwarf expression opcode 0xf3" stands out That just means the version of gdb you are using does not understand the dwarf2 extensions that GCC is emitting. We really need a preprocessed source to figure out what is going on here. Have you looked into using something like delta? http://gcc.gnu.org/wiki/A_guide_to_testcase_reduction