/* Builtin frame register, for GDB, the GNU debugger.
- Copyright (C) 2002, 2005, 2007 Free Software Foundation, Inc.
+ Copyright (C) 2002-2020 Free Software Foundation, Inc.
Contributed by Red Hat.
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
+ 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,
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., 51 Franklin Street, Fifth Floor,
- Boston, MA 02110-1301, USA. */
+ 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 "gdb_string.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, const void *baton)
-{
- struct value *val;
- gdb_byte *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, 0, TYPE_LENGTH (value_type (val)));
- /* frame.base. */
- if (frame != NULL)
- ADDRESS_TO_POINTER (builtin_type_void_data_ptr, buf,
- get_frame_base (frame));
- buf += TYPE_LENGTH (builtin_type_void_data_ptr);
- /* frame.XXX. */
- return val;
-}
+#include "gdbarch.h"
static struct value *
value_of_builtin_frame_fp_reg (struct frame_info *frame, const void *baton)
{
- if (DEPRECATED_FP_REGNUM >= 0)
+ 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 $fp register, there
- is no real reason for this DEPRECATED_FP_REGNUM trickery here.
+ is no real reason for this gdbarch_deprecated_fp_regnum trickery here.
An architecture wanting to implement "$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 (DEPRECATED_FP_REGNUM, frame);
+ return value_of_register (gdbarch_deprecated_fp_regnum (gdbarch),
+ frame);
else
{
- struct value *val = allocate_value (builtin_type_void_data_ptr);
+ struct type *data_ptr_type = builtin_type (gdbarch)->builtin_data_ptr;
+ struct value *val = allocate_value (data_ptr_type);
gdb_byte *buf = value_contents_raw (val);
- if (frame == NULL)
- memset (buf, 0, TYPE_LENGTH (value_type (val)));
- else
- ADDRESS_TO_POINTER (builtin_type_void_data_ptr, buf,
- get_frame_base_address (frame));
+
+ 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 (struct frame_info *frame, const void *baton)
{
- if (PC_REGNUM >= 0)
- return value_of_register (PC_REGNUM, frame);
+ struct gdbarch *gdbarch = get_frame_arch (frame);
+
+ if (gdbarch_pc_regnum (gdbarch) >= 0)
+ return value_of_register (gdbarch_pc_regnum (gdbarch), frame);
else
{
- struct value *val = allocate_value (builtin_type_void_data_ptr);
+ struct type *func_ptr_type = builtin_type (gdbarch)->builtin_func_ptr;
+ struct value *val = allocate_value (func_ptr_type);
gdb_byte *buf = value_contents_raw (val);
- if (frame == NULL)
- memset (buf, 0, TYPE_LENGTH (value_type (val)));
- else
- ADDRESS_TO_POINTER (builtin_type_void_data_ptr, buf,
- get_frame_pc (frame));
+
+ gdbarch_address_to_pointer (gdbarch, func_ptr_type,
+ buf, get_frame_pc (frame));
return val;
}
}
static struct value *
value_of_builtin_frame_sp_reg (struct frame_info *frame, const void *baton)
{
-#ifdef SP_REGNUM
- if (SP_REGNUM >= 0)
- return value_of_register (SP_REGNUM, frame);
-#endif
+ struct gdbarch *gdbarch = get_frame_arch (frame);
+
+ if (gdbarch_sp_regnum (gdbarch) >= 0)
+ return value_of_register (gdbarch_sp_regnum (gdbarch), frame);
error (_("Standard register ``$sp'' is not available for this target"));
}
static struct value *
value_of_builtin_frame_ps_reg (struct frame_info *frame, const void *baton)
{
-#ifdef PS_REGNUM
- if (PS_REGNUM >= 0)
- return value_of_register (PS_REGNUM, frame);
-#endif
+ struct gdbarch *gdbarch = get_frame_arch (frame);
+
+ if (gdbarch_ps_regnum (gdbarch) >= 0)
+ return value_of_register (gdbarch_ps_regnum (gdbarch), frame);
error (_("Standard register ``$ps'' is not available for this target"));
}
-extern initialize_file_ftype _initialize_frame_reg; /* -Wmissing-prototypes */
-
+void _initialize_frame_reg ();
void
-_initialize_frame_reg (void)
+_initialize_frame_reg ()
{
- /* 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. */
- DEPRECATED_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. */
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);
-
- /* 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)
- user_reg_add_builtin ("frame", value_of_builtin_frame_reg, NULL);
}
projects / deliverable / binutils-gdb.git / blobdiff