Jim Kingdon
ee7b9e92f6
* tm-sparc.c (EXTRA_FRAME_INFO): New field sp_offset.
* sparc-tdep.c (sparc_init_extra_frame_info): Set it. (examine_prologue, sparc_init_extra_frame_info): Use ->frame plus ->sp_offset to compute the address something is saved at, not ->bottom. * sparc-tdep.c (get_saved_register): New function. * tm-sparc.h: Define GET_SAVED_REGISTER; don't define FRAME_FIND_SAVED_REGS, HAVE_REGISTER_WINDOWS or REGISTER_IN_WINDOW_P. * stack.c (frame_info): Add comment about what to do if FRAME_FIND_SAVED_REGS is not defined. * sparc-tdep.c (sparc_init_extra_frame_info): Set ->frame field here. Get it right for flat frames. * sparc-tdep.c (sparc_frame_chain): Instead of returning meaningful value for ->frame field, just return dummy value. This change is needed because the old code didn't deal with mixed flat and non-flat frames. * sparc-tdep.c (sparc_pop_frame): Write SP_REGNUM from frame->frame, don't go through saved regs for this. * sparc-tdep.c: Move guts of skip_prologue to new function examine_prologue. Check for flat prologue and set is_flat. Provide the caller with the information about what is saved where if desired. (skip_prologue, sparc_frame_find_saved_regs): Call examine_prologue. * sparc-tdep.c: Replace union sparc_insn_layout and anonymous union in isannulled, which won't work on a little-endian host, with X_* macros. * sparc-tdep.c (sparc_frame_saved_pc): If addr == 0, the saved PC is still in %o7. * config/sparc/tm-sparc.h: Define INIT_FRAME_PC and INIT_FRAME_PC_FIRST. * blockframe.c (get_prev_frame_info): Modify comments regarding INIT_FRAME_PC_FIRST and the sparc. * sparc-tdep.c (single_step): Use 4 not sizeof (long) for size of instruction.
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