gdb/moxie: 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:

	* moxie-tdep.c (moxie_unwind_sp): Delete.
	(moxie_unwind_pc): Delete.
	(moxie_dummy_id): Delete.
	(moxie_gdbarch_init): Don't register deleted functions with
	gdbarch.

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index c2539c5..c25fe59 100644 (file)
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,5 +1,13 @@
 2019-04-23  Andrew Burgess  <andrew.burgess@embecosm.com>
 
+       * moxie-tdep.c (moxie_unwind_sp): Delete.
+       (moxie_unwind_pc): Delete.
+       (moxie_dummy_id): Delete.
+       (moxie_gdbarch_init): Don't register deleted functions with
+       gdbarch.
+
+2019-04-23  Andrew Burgess  <andrew.burgess@embecosm.com>
+
        * mn10300-tdep.c (mn10300_dummy_id): Delete.
        (mn10300_unwind_pc): Delete.
        (mn10300_unwind_sp): Delete.

diff --git a/gdb/moxie-tdep.c b/gdb/moxie-tdep.c
index 3a1737f..251c267 100644 (file)
--- a/gdb/moxie-tdep.c
+++ b/gdb/moxie-tdep.c
@@ -447,14 +447,6 @@ moxie_software_single_step (struct regcache *regcache)
   return next_pcs;
 }
 
-/* Implement the "unwind_sp" gdbarch method.  */
-
-static CORE_ADDR
-moxie_unwind_sp (struct gdbarch *gdbarch, struct frame_info *next_frame)
-{
-  return frame_unwind_register_unsigned (next_frame, MOXIE_SP_REGNUM);
-}
-
 /* Given a return value in `regbuf' with a type `valtype', 
    extract and copy its value into `valbuf'.  */
 
@@ -556,14 +548,6 @@ moxie_frame_cache (struct frame_info *this_frame, void **this_cache)
   return cache;
 }
 
-/* Implement the "unwind_pc" gdbarch method.  */
-
-static CORE_ADDR
-moxie_unwind_pc (struct gdbarch *gdbarch, struct frame_info *next_frame)
-{
-  return frame_unwind_register_unsigned (next_frame, MOXIE_PC_REGNUM);
-}
-
 /* Given a GDB frame, determine the address of the calling function's
    frame.  This will be used to create a new GDB frame struct.  */
 
@@ -629,14 +613,6 @@ static const struct frame_base moxie_frame_base = {
   moxie_frame_base_address
 };
 
-static struct frame_id
-moxie_dummy_id (struct gdbarch *gdbarch, struct frame_info *this_frame)
-{
-  CORE_ADDR sp = get_frame_register_unsigned (this_frame, MOXIE_SP_REGNUM);
-
-  return frame_id_build (sp, get_frame_pc (this_frame));
-}
-
 /* Parse the current instruction and record the values of the registers and
    memory that will be changed in current instruction to "record_arch_list".
    Return -1 if something wrong.  */
@@ -1089,8 +1065,6 @@ moxie_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
   set_gdbarch_wchar_bit (gdbarch, 32);
   set_gdbarch_wchar_signed (gdbarch, 0);
 
-  set_gdbarch_unwind_sp (gdbarch, moxie_unwind_sp);
-
   set_gdbarch_num_regs (gdbarch, MOXIE_NUM_REGS);
   set_gdbarch_sp_regnum (gdbarch, MOXIE_SP_REGNUM);
   set_gdbarch_pc_regnum (gdbarch, MOXIE_PC_REGNUM);
@@ -1109,13 +1083,6 @@ moxie_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
 
   frame_base_set_default (gdbarch, &moxie_frame_base);
 
-  /* Methods for saving / extracting a dummy frame's ID.  The ID's
-     stack address must match the SP value returned by
-     PUSH_DUMMY_CALL, and saved by generic_save_dummy_frame_tos.  */
-  set_gdbarch_dummy_id (gdbarch, moxie_dummy_id);
-
-  set_gdbarch_unwind_pc (gdbarch, moxie_unwind_pc);
-
   /* Hook in ABI-specific overrides, if they have been registered.  */
   gdbarch_init_osabi (info, gdbarch);