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gdb/arm: 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:

	* gdb/arm-tdep.c (arm_dummy_id): Delete.
	(arm_unwind_pc): Delete.
	(arm_unwind_sp): Delete.
	(arm_gdbarch_init): Don't register deleted functions with gdbarch.
This commit is contained in:
Andrew Burgess 2018-09-09 17:10:21 +01:00
parent f8278c3c7e
commit a19a650fcc
2 changed files with 7 additions and 37 deletions
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7
gdb/ChangeLog
View File

@ -1,3 +1,10 @@
2019-02-27 Andrew Burgess <andrew.burgess@embecosm.com>
* gdb/arm-tdep.c (arm_dummy_id): Delete.
(arm_unwind_pc): Delete.
(arm_unwind_sp): Delete.
(arm_gdbarch_init): Don't register deleted functions with gdbarch.
2019-02-27 Andrew Burgess <andrew.burgess@embecosm.com>
* gdb/arc-tdep.c (arc_dummy_id): Delete.

37
gdb/arm-tdep.c
View File

@ -3059,38 +3059,6 @@ struct frame_base arm_normal_base = {
arm_normal_frame_base
};
/* 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 returned from
arm_push_dummy_call, and the PC needs to match the dummy frame's
breakpoint. */
static struct frame_id
arm_dummy_id (struct gdbarch *gdbarch, struct frame_info *this_frame)
{
return frame_id_build (get_frame_register_unsigned (this_frame,
ARM_SP_REGNUM),
get_frame_pc (this_frame));
}
/* Given THIS_FRAME, find the previous frame's resume PC (which will
be used to construct the previous frame's ID, after looking up the
containing function). */
static CORE_ADDR
arm_unwind_pc (struct gdbarch *gdbarch, struct frame_info *this_frame)
{
CORE_ADDR pc;
pc = frame_unwind_register_unsigned (this_frame, ARM_PC_REGNUM);
return arm_addr_bits_remove (gdbarch, pc);
}
static CORE_ADDR
arm_unwind_sp (struct gdbarch *gdbarch, struct frame_info *this_frame)
{
return frame_unwind_register_unsigned (this_frame, ARM_SP_REGNUM);
}
static struct value *
arm_dwarf2_prev_register (struct frame_info *this_frame, void **this_cache,
int regnum)
@ -9362,11 +9330,6 @@ arm_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
set_gdbarch_write_pc (gdbarch, arm_write_pc);
/* Frame handling. */
set_gdbarch_dummy_id (gdbarch, arm_dummy_id);
set_gdbarch_unwind_pc (gdbarch, arm_unwind_pc);
set_gdbarch_unwind_sp (gdbarch, arm_unwind_sp);
frame_base_set_default (gdbarch, &arm_normal_base);
/* Address manipulation. */