On Mon, Nov 26, 2012 at 2:10 PM, Ulrich Weigand <uweig...@de.ibm.com> wrote:
> So I'm wondering where to go from here. I guess we could: > > 1. Bring GCC (and gas) behaviour in compliance with the documented ABI > by removing the #undef DBX_REGISTER_NUMBER and changing gas's > md_reg_eh_frame_to_debug_frame to the original implementation from > Jakub's patch. That would make GDB work well on new files, but > there are a large number of binaries out there where we continue > to have the same behaviour as today ... > > 2. Leave GCC and gas as-is and modify GDB to expect GCC numbering in > .dwarf_frame, except for the condition code register. This would > break debugging of files built with GCC 4.0 and 4.1 unless we > want to add a special hack for that. > > 3. Like 2., but remove the condition code hack: simply use identical > numbers in .eh_frame and .dwarf_frame. This would make PowerPC > like other Linux platforms in that respect. > > Thoughts? I vote for (3). Thanks, David
