gdb/nds32: Use default gdbarch methods where possible

Make use of the default gdbarch methods for gdbarch_dummy_id,
gdbarch_unwind_pc, and gdbarch_unwind_sp where possible.

I have not tested this change but, by inspecting the code, I believe
the default methods are equivalent to the code being deleted.

gdb/ChangeLog:

	* nds32-tdep.c (nds32_dummy_id): Delete.
	(nds32_unwind_pc): Delete.
	(nds32_unwind_sp): Delete.
	(nds32_gdbarch_init): Don't register deleted functions with
	gdbarch.

1 files changed, 0 insertions, 28 deletions

diff --git a/gdb/nds32-tdep.c b/gdb/nds32-tdep.c
index d3481e2..8e126cb 100644
--- a/gdb/nds32-tdep.c
+++ b/gdb/nds32-tdep.c
@@ -1387,32 +1387,7 @@ static const struct frame_unwind nds32_epilogue_frame_unwind =
   NULL,
   nds32_epilogue_frame_sniffer
 };
-
-/* Implement the "dummy_id" gdbarch method.  */
-
-static struct frame_id
-nds32_dummy_id (struct gdbarch *gdbarch, struct frame_info *this_frame)
-{
-  CORE_ADDR sp = get_frame_register_unsigned (this_frame, NDS32_SP_REGNUM);
-
-  return frame_id_build (sp, get_frame_pc (this_frame));
-}
-
-/* Implement the "unwind_pc" gdbarch method.  */
-
-static CORE_ADDR
-nds32_unwind_pc (struct gdbarch *gdbarch, struct frame_info *next_frame)
-{
-  return frame_unwind_register_unsigned (next_frame, NDS32_PC_REGNUM);
-}
-
-/* Implement the "unwind_sp" gdbarch method.  */
 
-static CORE_ADDR
-nds32_unwind_sp (struct gdbarch *gdbarch, struct frame_info *next_frame)
-{
-  return frame_unwind_register_unsigned (next_frame, NDS32_SP_REGNUM);
-}
 
 /* Floating type and struct type that has only one floating type member
    can pass value using FPU registers (when FPU ABI is used).  */
@@ -2094,14 +2069,11 @@ nds32_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
 
   set_gdbarch_sp_regnum (gdbarch, NDS32_SP_REGNUM);
   set_gdbarch_pc_regnum (gdbarch, NDS32_PC_REGNUM);
-  set_gdbarch_unwind_sp (gdbarch, nds32_unwind_sp);
-  set_gdbarch_unwind_pc (gdbarch, nds32_unwind_pc);
   set_gdbarch_stack_frame_destroyed_p (gdbarch, nds32_stack_frame_destroyed_p);
   set_gdbarch_dwarf2_reg_to_regnum (gdbarch, nds32_dwarf2_reg_to_regnum);
 
   set_gdbarch_push_dummy_call (gdbarch, nds32_push_dummy_call);
   set_gdbarch_return_value (gdbarch, nds32_return_value);
-  set_gdbarch_dummy_id (gdbarch, nds32_dummy_id);
 
   set_gdbarch_skip_prologue (gdbarch, nds32_skip_prologue);
   set_gdbarch_inner_than (gdbarch, core_addr_lessthan);