]>
Commit | Line | Data |
---|---|---|
da62e633 AC |
1 | /* Definitions for frame address handler, for GDB, the GNU debugger. |
2 | ||
1d506c26 | 3 | Copyright (C) 2003-2024 Free Software Foundation, Inc. |
da62e633 AC |
4 | |
5 | This file is part of GDB. | |
6 | ||
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 | |
a9762ec7 | 9 | the Free Software Foundation; either version 3 of the License, or |
da62e633 AC |
10 | (at your option) any later version. |
11 | ||
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. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
a9762ec7 | 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
da62e633 | 19 | |
da62e633 AC |
20 | #include "frame-base.h" |
21 | #include "frame.h" | |
bf31fd38 | 22 | #include "gdbsupport/gdb_obstack.h" |
0d12e84c | 23 | #include "gdbarch.h" |
da62e633 AC |
24 | |
25 | /* A default frame base implementations. If it wasn't for the old | |
42efa47a AC |
26 | DEPRECATED_FRAME_LOCALS_ADDRESS and DEPRECATED_FRAME_ARGS_ADDRESS, |
27 | these could be combined into a single function. All architectures | |
28 | really need to override this. */ | |
da62e633 AC |
29 | |
30 | static CORE_ADDR | |
8480a37e | 31 | default_frame_base_address (const frame_info_ptr &this_frame, void **this_cache) |
da62e633 | 32 | { |
da62e633 AC |
33 | return get_frame_base (this_frame); /* sigh! */ |
34 | } | |
35 | ||
36 | static CORE_ADDR | |
8480a37e | 37 | default_frame_locals_address (const frame_info_ptr &this_frame, void **this_cache) |
da62e633 | 38 | { |
669fac23 | 39 | return default_frame_base_address (this_frame, this_cache); |
da62e633 AC |
40 | } |
41 | ||
42 | static CORE_ADDR | |
8480a37e | 43 | default_frame_args_address (const frame_info_ptr &this_frame, void **this_cache) |
da62e633 | 44 | { |
669fac23 | 45 | return default_frame_base_address (this_frame, this_cache); |
da62e633 AC |
46 | } |
47 | ||
48 | const struct frame_base default_frame_base = { | |
49 | NULL, /* No parent. */ | |
50 | default_frame_base_address, | |
51 | default_frame_locals_address, | |
52 | default_frame_args_address | |
53 | }; | |
54 | ||
0cad6aec AC |
55 | struct frame_base_table_entry |
56 | { | |
57 | frame_base_sniffer_ftype *sniffer; | |
58 | struct frame_base_table_entry *next; | |
59 | }; | |
60 | ||
da62e633 AC |
61 | struct frame_base_table |
62 | { | |
cb275538 TT |
63 | struct frame_base_table_entry *head = nullptr; |
64 | struct frame_base_table_entry **tail = &head; | |
65 | const struct frame_base *default_base = &default_frame_base; | |
da62e633 AC |
66 | }; |
67 | ||
cb275538 | 68 | static const registry<gdbarch>::key<struct frame_base_table> frame_base_data; |
bb9bcb69 | 69 | |
cb275538 TT |
70 | static struct frame_base_table * |
71 | get_frame_base_table (struct gdbarch *gdbarch) | |
72 | { | |
73 | struct frame_base_table *table = frame_base_data.get (gdbarch); | |
74 | if (table == nullptr) | |
75 | table = frame_base_data.emplace (gdbarch); | |
da62e633 AC |
76 | return table; |
77 | } | |
78 | ||
e8a89fe2 AC |
79 | void |
80 | frame_base_append_sniffer (struct gdbarch *gdbarch, | |
81 | frame_base_sniffer_ftype *sniffer) | |
82 | { | |
cb275538 | 83 | struct frame_base_table *table = get_frame_base_table (gdbarch); |
bb9bcb69 | 84 | |
3e43a32a MS |
85 | (*table->tail) |
86 | = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct frame_base_table_entry); | |
0cad6aec AC |
87 | (*table->tail)->sniffer = sniffer; |
88 | table->tail = &(*table->tail)->next; | |
da62e633 AC |
89 | } |
90 | ||
91 | void | |
92 | frame_base_set_default (struct gdbarch *gdbarch, | |
93 | const struct frame_base *default_base) | |
94 | { | |
cb275538 | 95 | struct frame_base_table *table = get_frame_base_table (gdbarch); |
bb9bcb69 | 96 | |
da62e633 AC |
97 | table->default_base = default_base; |
98 | } | |
99 | ||
100 | const struct frame_base * | |
8480a37e | 101 | frame_base_find_by_frame (const frame_info_ptr &this_frame) |
da62e633 | 102 | { |
669fac23 | 103 | struct gdbarch *gdbarch = get_frame_arch (this_frame); |
cb275538 | 104 | struct frame_base_table *table = get_frame_base_table (gdbarch); |
0cad6aec AC |
105 | struct frame_base_table_entry *entry; |
106 | ||
107 | for (entry = table->head; entry != NULL; entry = entry->next) | |
da62e633 | 108 | { |
e8a89fe2 | 109 | const struct frame_base *desc = NULL; |
bb9bcb69 | 110 | |
669fac23 | 111 | desc = entry->sniffer (this_frame); |
da62e633 AC |
112 | if (desc != NULL) |
113 | return desc; | |
114 | } | |
115 | return table->default_base; | |
116 | } |