mirror of
https://github.com/darlinghq/darling-gdb.git
synced 2024-12-05 02:47:05 +00:00
0406ec40ea
(value_of_register): Call value_of_builtin_reg when applicable. * parse.c: Include "builtin-regs.h" and "gdb_assert.h". (target_map_name_to_register): Call builtin_reg_map_name_to_regnum. * Makefile.in (SFILES): Add builtin-regs.c and std-regs.c. (COMMON_OBS): Add builtin-regs.o and std-regs.o. (builtin_regs_h): Define. (builtin-regs.o): New target. (findvar.o): Add $(builtin_regs_h). * builtin-regs.c, builtin-regs.h: New files. * std-regs.c: New file. Partial fix for PR gdb/251.
151 lines
4.3 KiB
C
151 lines
4.3 KiB
C
/* Builtin frame register, for GDB, the GNU debugger.
|
|
|
|
Copyright 2002 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 2 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, write to the Free Software
|
|
Foundation, Inc., 59 Temple Place - Suite 330,
|
|
Boston, MA 02111-1307, USA. */
|
|
|
|
#include "defs.h"
|
|
#include "builtin-regs.h"
|
|
#include "frame.h"
|
|
#include "gdbtypes.h"
|
|
#include "value.h"
|
|
|
|
/* Types that describe the various builtin registers. */
|
|
|
|
static struct type *builtin_type_frame_reg;
|
|
|
|
/* Constructors for those types. */
|
|
|
|
static void
|
|
build_builtin_type_frame_reg (void)
|
|
{
|
|
/* $frame. */
|
|
if (builtin_type_frame_reg == NULL)
|
|
{
|
|
#if 0
|
|
struct frame
|
|
{
|
|
void *base;
|
|
};
|
|
#endif
|
|
builtin_type_frame_reg = init_composite_type ("frame", TYPE_CODE_STRUCT);
|
|
append_composite_type_field (builtin_type_frame_reg, "base",
|
|
builtin_type_void_data_ptr);
|
|
}
|
|
}
|
|
|
|
static struct value *
|
|
value_of_builtin_frame_reg (struct frame_info *frame)
|
|
{
|
|
struct value *val;
|
|
char *buf;
|
|
build_builtin_type_frame_reg ();
|
|
val = allocate_value (builtin_type_frame_reg);
|
|
VALUE_LVAL (val) = not_lval;
|
|
buf = VALUE_CONTENTS_RAW (val);
|
|
memset (buf, TYPE_LENGTH (VALUE_TYPE (val)), 0);
|
|
/* frame.base. */
|
|
if (frame != NULL)
|
|
ADDRESS_TO_POINTER (builtin_type_void_data_ptr, buf, frame->frame);
|
|
buf += TYPE_LENGTH (builtin_type_void_data_ptr);
|
|
/* frame.XXX. */
|
|
return val;
|
|
}
|
|
|
|
static struct value *
|
|
value_of_builtin_frame_fp_reg (struct frame_info *frame)
|
|
{
|
|
#ifdef FP_REGNUM
|
|
if (FP_REGNUM >= 0)
|
|
return value_of_register (FP_REGNUM, frame);
|
|
#endif
|
|
{
|
|
struct value *val = allocate_value (builtin_type_void_data_ptr);
|
|
char *buf = VALUE_CONTENTS_RAW (val);
|
|
if (frame == NULL)
|
|
memset (buf, TYPE_LENGTH (VALUE_TYPE (val)), 0);
|
|
else
|
|
ADDRESS_TO_POINTER (builtin_type_void_data_ptr, buf, frame->frame);
|
|
return val;
|
|
}
|
|
}
|
|
|
|
static struct value *
|
|
value_of_builtin_frame_pc_reg (struct frame_info *frame)
|
|
{
|
|
#ifdef PC_REGNUM
|
|
if (PC_REGNUM >= 0)
|
|
return value_of_register (PC_REGNUM, frame);
|
|
#endif
|
|
{
|
|
struct value *val = allocate_value (builtin_type_void_data_ptr);
|
|
char *buf = VALUE_CONTENTS_RAW (val);
|
|
if (frame == NULL)
|
|
memset (buf, TYPE_LENGTH (VALUE_TYPE (val)), 0);
|
|
else
|
|
ADDRESS_TO_POINTER (builtin_type_void_data_ptr, buf, frame->pc);
|
|
return val;
|
|
}
|
|
}
|
|
|
|
static struct value *
|
|
value_of_builtin_frame_sp_reg (struct frame_info *frame)
|
|
{
|
|
#ifdef SP_REGNUM
|
|
if (SP_REGNUM >= 0)
|
|
return value_of_register (SP_REGNUM, frame);
|
|
#endif
|
|
error ("Standard register ``$sp'' is not available for this target");
|
|
}
|
|
|
|
static struct value *
|
|
value_of_builtin_frame_ps_reg (struct frame_info *frame)
|
|
{
|
|
#ifdef PS_REGNUM
|
|
if (PS_REGNUM >= 0)
|
|
return value_of_register (PS_REGNUM, frame);
|
|
#endif
|
|
error ("Standard register ``$ps'' is not available for this target");
|
|
}
|
|
|
|
void
|
|
_initialize_frame_reg (void)
|
|
{
|
|
/* FIXME: cagney/2002-02-08: At present the local builtin types
|
|
can't be initialized using _initialize*() or gdbarch. Due mainly
|
|
to non-multi-arch targets, GDB initializes things piece meal and,
|
|
as a consequence can leave these types NULL. */
|
|
REGISTER_GDBARCH_SWAP (builtin_type_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. */
|
|
add_builtin_reg ("fp", value_of_builtin_frame_fp_reg);
|
|
add_builtin_reg ("pc", value_of_builtin_frame_pc_reg);
|
|
add_builtin_reg ("sp", value_of_builtin_frame_sp_reg);
|
|
add_builtin_reg ("ps", value_of_builtin_frame_ps_reg);
|
|
|
|
/* NOTE: cagney/2002-04-05: For moment leave the $frame / $gdbframe
|
|
/ $gdb.frame disabled. It isn't yet clear which of the many
|
|
options is the best. */
|
|
if (0)
|
|
add_builtin_reg ("frame", value_of_builtin_frame_reg);
|
|
}
|