diff mbox

[04/25] gdb/m32r: Use default gdbarch methods where possible

Message ID 9b41b925d676c7f0bf37602091f6362e235e4f79.1553721872.git.andrew.burgess@embecosm.com
State New
Headers show

Commit Message

Andrew Burgess March 27, 2019, 9:34 p.m. UTC
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:

	* m32r-tdep.c (m32r_unwind_sp): Delete.
	(m32r_unwind_pc): Delete.
	(m32r_dummy_id): Delete.
	(m32r_gdbarch_init): Don't register deleted functions with
	gdbarch.
---
 gdb/ChangeLog   |  8 ++++++++
 gdb/m32r-tdep.c | 37 -------------------------------------
 2 files changed, 8 insertions(+), 37 deletions(-)

Comments

Kevin Buettner March 27, 2019, 10:18 p.m. UTC | #1
On Wed, 27 Mar 2019 21:34:00 +0000
Andrew Burgess <andrew.burgess@embecosm.com> wrote:

> gdb/ChangeLog:
> 
> 	* m32r-tdep.c (m32r_unwind_sp): Delete.
> 	(m32r_unwind_pc): Delete.
> 	(m32r_dummy_id): Delete.
> 	(m32r_gdbarch_init): Don't register deleted functions with
> 	gdbarch.

Okay.

Kevin
diff mbox

Patch

diff --git a/gdb/m32r-tdep.c b/gdb/m32r-tdep.c
index 18acdb6990c..a10558d59be 100644
--- a/gdb/m32r-tdep.c
+++ b/gdb/m32r-tdep.c
@@ -648,13 +648,6 @@  m32r_frame_unwind_cache (struct frame_info *this_frame,
   return info;
 }
 
-static CORE_ADDR
-m32r_unwind_sp (struct gdbarch *gdbarch, struct frame_info *next_frame)
-{
-  return frame_unwind_register_unsigned (next_frame, M32R_SP_REGNUM);
-}
-
-
 static CORE_ADDR
 m32r_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
 		      struct regcache *regcache, CORE_ADDR bp_addr, int nargs,
@@ -798,14 +791,6 @@  m32r_return_value (struct gdbarch *gdbarch, struct value *function,
     }
 }
 
-
-
-static CORE_ADDR
-m32r_unwind_pc (struct gdbarch *gdbarch, struct frame_info *next_frame)
-{
-  return frame_unwind_register_unsigned (next_frame, M32R_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.  */
 
@@ -872,18 +857,6 @@  static const struct frame_base m32r_frame_base = {
   m32r_frame_base_address
 };
 
-/* Assuming THIS_FRAME is a dummy, return the frame ID of that dummy
-   frame.  The frame ID's base needs to match the TOS value saved by
-   save_dummy_frame_tos(), and the PC match the dummy frame's breakpoint.  */
-
-static struct frame_id
-m32r_dummy_id (struct gdbarch *gdbarch, struct frame_info *this_frame)
-{
-  CORE_ADDR sp = get_frame_register_unsigned (this_frame, M32R_SP_REGNUM);
-  return frame_id_build (sp, get_frame_pc (this_frame));
-}
-
-
 static gdbarch_init_ftype m32r_gdbarch_init;
 
 static struct gdbarch *
@@ -904,8 +877,6 @@  m32r_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
   set_gdbarch_wchar_bit (gdbarch, 16);
   set_gdbarch_wchar_signed (gdbarch, 0);
 
-  set_gdbarch_unwind_sp (gdbarch, m32r_unwind_sp);
-
   set_gdbarch_num_regs (gdbarch, M32R_NUM_REGS);
   set_gdbarch_pc_regnum (gdbarch, M32R_PC_REGNUM);
   set_gdbarch_sp_regnum (gdbarch, M32R_SP_REGNUM);
@@ -928,14 +899,6 @@  m32r_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
 
   frame_base_set_default (gdbarch, &m32r_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, m32r_dummy_id);
-
-  /* Return the unwound PC value.  */
-  set_gdbarch_unwind_pc (gdbarch, m32r_unwind_pc);
-
   /* Hook in ABI-specific overrides, if they have been registered.  */
   gdbarch_init_osabi (info, gdbarch);