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gdb/m32c: 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:

	* m32c-tdep.c (m32c_unwind_pc): Delete.
	(m32c_unwind_sp): Delete.
	(m32c_dummy_id): Delete.
	(m32c_gdbarch_init): Don't register deleted functions with
	gdbarch.
This commit is contained in:
Andrew Burgess 2019-01-10 18:27:12 +00:00
parent 946c28d2f9
commit 89b268d823
2 changed files with 8 additions and 34 deletions
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8
gdb/ChangeLog
View File

@ -1,3 +1,11 @@
2019-04-23 Andrew Burgess <andrew.burgess@embecosm.com>
* m32c-tdep.c (m32c_unwind_pc): Delete.
(m32c_unwind_sp): Delete.
(m32c_dummy_id): Delete.
(m32c_gdbarch_init): Don't register deleted functions with
gdbarch.
2019-04-23 Andrew Burgess <andrew.burgess@embecosm.com>
* gdb/lm32-tdep.c (lm32_unwind_sp): Delete.

34
gdb/m32c-tdep.c
View File

@ -1951,22 +1951,6 @@ static const struct frame_unwind m32c_unwind = {
default_frame_sniffer
};
static CORE_ADDR
m32c_unwind_pc (struct gdbarch *arch, struct frame_info *next_frame)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (arch);
return frame_unwind_register_unsigned (next_frame, tdep->pc->num);
}
static CORE_ADDR
m32c_unwind_sp (struct gdbarch *arch, struct frame_info *next_frame)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (arch);
return frame_unwind_register_unsigned (next_frame, tdep->sp->num);
}
/* Inferior calls. */
@ -2139,21 +2123,6 @@ m32c_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
}
static struct frame_id
m32c_dummy_id (struct gdbarch *gdbarch, struct frame_info *this_frame)
{
/* This needs to return a frame ID whose PC is the return address
passed to m32c_push_dummy_call, and whose stack_addr is the SP
m32c_push_dummy_call returned.
m32c_unwind_sp gives us the CFA, which is the value the SP had
before the return address was pushed. */
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
CORE_ADDR sp = get_frame_register_unsigned (this_frame, tdep->sp->num);
return frame_id_build (sp, get_frame_pc (this_frame));
}
/* Return values. */
@ -2643,8 +2612,6 @@ m32c_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
/* Prologue analysis and unwinding. */
set_gdbarch_inner_than (gdbarch, core_addr_lessthan);
set_gdbarch_skip_prologue (gdbarch, m32c_skip_prologue);
set_gdbarch_unwind_pc (gdbarch, m32c_unwind_pc);
set_gdbarch_unwind_sp (gdbarch, m32c_unwind_sp);
#if 0
/* I'm dropping the dwarf2 sniffer because it has a few problems.
They may be in the dwarf2 cfi code in GDB, or they may be in
@ -2658,7 +2625,6 @@ m32c_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
/* Inferior calls. */
set_gdbarch_push_dummy_call (gdbarch, m32c_push_dummy_call);
set_gdbarch_return_value (gdbarch, m32c_return_value);
set_gdbarch_dummy_id (gdbarch, m32c_dummy_id);
/* Trampolines. */
set_gdbarch_skip_trampoline_code (gdbarch, m32c_skip_trampoline_code);