1d506c26d9
This commit is the result of the following actions:
- Running gdb/copyright.py to update all of the copyright headers to
include 2024,
- Manually updating a few files the copyright.py script told me to
update, these files had copyright headers embedded within the
file,
- Regenerating gdbsupport/Makefile.in to refresh it's copyright
date,
- Using grep to find other files that still mentioned 2023. If
these files were updated last year from 2022 to 2023 then I've
updated them this year to 2024.
I'm sure I've probably missed some dates. Feel free to fix them up as
you spot them.
108 lines
3.8 KiB
C
108 lines
3.8 KiB
C
/* Builtin frame register, for GDB, the GNU debugger.
|
|
|
|
Copyright (C) 2002-2024 Free Software Foundation, Inc.
|
|
|
|
Contributed by Red Hat.
|
|
|
|
This file is part of GDB.
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program. If not, see <http://www.gnu.org/licenses/>. */
|
|
|
|
#include "defs.h"
|
|
#include "user-regs.h"
|
|
#include "frame.h"
|
|
#include "gdbtypes.h"
|
|
#include "value.h"
|
|
#include "gdbarch.h"
|
|
|
|
static struct value *
|
|
value_of_builtin_frame_fp_reg (frame_info_ptr frame, const void *baton)
|
|
{
|
|
struct gdbarch *gdbarch = get_frame_arch (frame);
|
|
|
|
if (gdbarch_deprecated_fp_regnum (gdbarch) >= 0)
|
|
/* NOTE: cagney/2003-04-24: Since the mere presence of "fp" in the
|
|
register name table overrides this built-in $fp register, there
|
|
is no real reason for this gdbarch_deprecated_fp_regnum trickery here.
|
|
An architecture wanting to implement "$fp" as alias for a raw
|
|
register can do so by adding "fp" to register name table (mind
|
|
you, doing this is probably a dangerous thing). */
|
|
return value_of_register (gdbarch_deprecated_fp_regnum (gdbarch),
|
|
get_next_frame_sentinel_okay (frame));
|
|
else
|
|
{
|
|
struct type *data_ptr_type = builtin_type (gdbarch)->builtin_data_ptr;
|
|
struct value *val = value::allocate (data_ptr_type);
|
|
gdb_byte *buf = val->contents_raw ().data ();
|
|
|
|
gdbarch_address_to_pointer (gdbarch, data_ptr_type,
|
|
buf, get_frame_base_address (frame));
|
|
return val;
|
|
}
|
|
}
|
|
|
|
static struct value *
|
|
value_of_builtin_frame_pc_reg (frame_info_ptr frame, const void *baton)
|
|
{
|
|
struct gdbarch *gdbarch = get_frame_arch (frame);
|
|
|
|
if (gdbarch_pc_regnum (gdbarch) >= 0)
|
|
return value_of_register (gdbarch_pc_regnum (gdbarch),
|
|
get_next_frame_sentinel_okay (frame));
|
|
else
|
|
{
|
|
struct type *func_ptr_type = builtin_type (gdbarch)->builtin_func_ptr;
|
|
struct value *val = value::allocate (func_ptr_type);
|
|
gdb_byte *buf = val->contents_raw ().data ();
|
|
|
|
gdbarch_address_to_pointer (gdbarch, func_ptr_type,
|
|
buf, get_frame_pc (frame));
|
|
return val;
|
|
}
|
|
}
|
|
|
|
static struct value *
|
|
value_of_builtin_frame_sp_reg (frame_info_ptr frame, const void *baton)
|
|
{
|
|
struct gdbarch *gdbarch = get_frame_arch (frame);
|
|
|
|
if (gdbarch_sp_regnum (gdbarch) >= 0)
|
|
return value_of_register (gdbarch_sp_regnum (gdbarch),
|
|
get_next_frame_sentinel_okay (frame));
|
|
error (_("Standard register ``$sp'' is not available for this target"));
|
|
}
|
|
|
|
static struct value *
|
|
value_of_builtin_frame_ps_reg (frame_info_ptr frame, const void *baton)
|
|
{
|
|
struct gdbarch *gdbarch = get_frame_arch (frame);
|
|
|
|
if (gdbarch_ps_regnum (gdbarch) >= 0)
|
|
return value_of_register (gdbarch_ps_regnum (gdbarch),
|
|
get_next_frame_sentinel_okay (frame));
|
|
error (_("Standard register ``$ps'' is not available for this target"));
|
|
}
|
|
|
|
void _initialize_frame_reg ();
|
|
void
|
|
_initialize_frame_reg ()
|
|
{
|
|
/* Frame based $fp, $pc, $sp and $ps. These only come into play
|
|
when the target does not define its own version of these
|
|
registers. */
|
|
user_reg_add_builtin ("fp", value_of_builtin_frame_fp_reg, NULL);
|
|
user_reg_add_builtin ("pc", value_of_builtin_frame_pc_reg, NULL);
|
|
user_reg_add_builtin ("sp", value_of_builtin_frame_sp_reg, NULL);
|
|
user_reg_add_builtin ("ps", value_of_builtin_frame_ps_reg, NULL);
|
|
}
|