[PATCH 02/25] gdb/lm32: Use default gdbarch methods where possible

[Andrew Burgess]

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:

	* gdb/lm32-tdep.c (lm32_unwind_sp): Delete.
	(lm32_unwind_pc): Delete.
	(lm32_dummy_id): Delete.
	(lm32_gdbarch_init): Don't register deleted functions with
	gdbarch.
---
 gdb/ChangeLog   |  8 ++++++++
 gdb/lm32-tdep.c | 23 -----------------------
 2 files changed, 8 insertions(+), 23 deletions(-)

diff --git a/gdb/lm32-tdep.c b/gdb/lm32-tdep.c
index f217dbae69c..1f746d250cd 100644
--- a/gdb/lm32-tdep.c
+++ b/gdb/lm32-tdep.c
@@ -383,26 +383,6 @@ lm32_return_value (struct gdbarch *gdbarch, struct value *function,
   return RETURN_VALUE_REGISTER_CONVENTION;
 }
 
-static CORE_ADDR
-lm32_unwind_pc (struct gdbarch *gdbarch, struct frame_info *next_frame)
-{
-  return frame_unwind_register_unsigned (next_frame, SIM_LM32_PC_REGNUM);
-}
-
-static CORE_ADDR
-lm32_unwind_sp (struct gdbarch *gdbarch, struct frame_info *next_frame)
-{
-  return frame_unwind_register_unsigned (next_frame, SIM_LM32_SP_REGNUM);
-}
-
-static struct frame_id
-lm32_dummy_id (struct gdbarch *gdbarch, struct frame_info *this_frame)
-{
-  CORE_ADDR sp = get_frame_register_unsigned (this_frame, SIM_LM32_SP_REGNUM);
-
-  return frame_id_build (sp, get_frame_pc (this_frame));
-}
-
 /* Put here the code to store, into fi->saved_regs, the addresses of
    the saved registers of frame described by FRAME_INFO.  This
    includes special registers such as pc and fp saved in special ways
@@ -552,9 +532,6 @@ lm32_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
   /* Frame unwinding.  */
   set_gdbarch_frame_align (gdbarch, lm32_frame_align);
   frame_base_set_default (gdbarch, &lm32_frame_base);
-  set_gdbarch_unwind_pc (gdbarch, lm32_unwind_pc);
-  set_gdbarch_unwind_sp (gdbarch, lm32_unwind_sp);
-  set_gdbarch_dummy_id (gdbarch, lm32_dummy_id);
   frame_unwind_append_unwinder (gdbarch, &lm32_frame_unwind);
 
   /* Breakpoints.  */
-- 
2.14.5