1 /* Definitions for frame address handler, for GDB, the GNU debugger.
3 Copyright 2003 Free Software Foundation, Inc.
5 This file is part of GDB.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place - Suite 330,
20 Boston, MA 02111-1307, USA. */
23 #include "frame-base.h"
26 /* A default frame base implementations. If it wasn't for the old
27 FRAME_LOCALS_ADDRESS and FRAME_ARGS_ADDRESS, these could be
28 combined into a single function. All architectures really need to
32 default_frame_base_address (struct frame_info
*next_frame
, void **this_cache
)
34 struct frame_info
*this_frame
= get_prev_frame (next_frame
);
35 return get_frame_base (this_frame
); /* sigh! */
39 default_frame_locals_address (struct frame_info
*next_frame
, void **this_cache
)
41 struct frame_info
*this_frame
= get_prev_frame (next_frame
);
42 return FRAME_LOCALS_ADDRESS (this_frame
);
46 default_frame_args_address (struct frame_info
*next_frame
, void **this_cache
)
48 struct frame_info
*this_frame
= get_prev_frame (next_frame
);
49 return FRAME_ARGS_ADDRESS (this_frame
);
52 const struct frame_base default_frame_base
= {
53 NULL
, /* No parent. */
54 default_frame_base_address
,
55 default_frame_locals_address
,
56 default_frame_args_address
59 static struct gdbarch_data
*frame_base_data
;
61 struct frame_base_table
63 frame_base_p_ftype
**p
;
64 const struct frame_base
*default_base
;
69 frame_base_init (struct gdbarch
*gdbarch
)
71 struct frame_base_table
*table
= XCALLOC (1, struct frame_base_table
);
72 table
->default_base
= &default_frame_base
;
77 frame_base_free (struct gdbarch
*gdbarch
, void *data
)
79 struct frame_base_table
*table
=
80 gdbarch_data (gdbarch
, frame_base_data
);
85 static struct frame_base_table
*
86 frame_base_table (struct gdbarch
*gdbarch
)
88 struct frame_base_table
*table
= gdbarch_data (gdbarch
, frame_base_data
);
91 /* ULGH, called during architecture initialization. Patch
93 table
= frame_base_init (gdbarch
);
94 set_gdbarch_data (gdbarch
, frame_base_data
, table
);
99 /* Append a predicate to the end of the table. */
101 append_predicate (struct frame_base_table
*table
, frame_base_p_ftype
*p
)
103 table
->p
= xrealloc (table
->p
, ((table
->nr
+ 1)
104 * sizeof (frame_base_p_ftype
*)));
105 table
->p
[table
->nr
] = p
;
110 frame_base_append_predicate (struct gdbarch
*gdbarch
,
111 frame_base_p_ftype
*p
)
113 struct frame_base_table
*table
= frame_base_table (gdbarch
);
114 append_predicate (table
, p
);
118 frame_base_set_default (struct gdbarch
*gdbarch
,
119 const struct frame_base
*default_base
)
121 struct frame_base_table
*table
= frame_base_table (gdbarch
);
122 table
->default_base
= default_base
;
125 const struct frame_base
*
126 frame_base_find_by_pc (struct gdbarch
*gdbarch
, CORE_ADDR pc
)
129 struct frame_base_table
*table
= frame_base_table (gdbarch
);
130 for (i
= 0; i
< table
->nr
; i
++)
132 const struct frame_base
*desc
= table
->p
[i
] (pc
);
136 return table
->default_base
;
139 extern initialize_file_ftype _initialize_frame_base
; /* -Wmissing-prototypes */
142 _initialize_frame_base (void)
144 frame_base_data
= register_gdbarch_data (frame_base_init
,