------- Comment #9 from drow at gcc dot gnu dot org 2005-11-15 20:58 ------- Subject: Re: [4.1 regression] invalid register in debug info
On Thu, Oct 20, 2005 at 08:35:59AM -0000, rth at gcc dot gnu dot org wrote: > Well, the ideal fix is to make use of the dwarf3 DW_OP_call_frame_cfa > directive, and let the debugger get the CFA information from the ia64 > unwind info. Similarly for the arm eabi unwind info. Note that this may be a good solution for ia64, but it really is not for ARM. ARM unwind information is only usable by the debugger in very few cases, because everything interesting is handled by a personality routine; it's only if you use one of the standard table formats (which GCC does) that the debugger can decode it. But we do still emit .debug_frame for ARM, and the debugger does use that. So presumably that's plenty to use DW_OP_call_frame_cfa. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24444
