Commit | Line | Data |
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015a42b4 | 1 | /* Generic code for supporting multiple C++ ABI's |
06c4d4dc | 2 | |
0d5de010 | 3 | Copyright (C) 2001, 2002, 2003, 2005, 2006 Free Software Foundation, Inc. |
015a42b4 JB |
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 | |
9 | the Free Software Foundation; either version 2 of the License, or | |
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 | |
18 | along with this program; if not, write to the Free Software | |
197e01b6 EZ |
19 | Foundation, Inc., 51 Franklin Street, Fifth Floor, |
20 | Boston, MA 02110-1301, USA. */ | |
015a42b4 JB |
21 | |
22 | #include "defs.h" | |
23 | #include "value.h" | |
24 | #include "cp-abi.h" | |
fe1f4a5e DJ |
25 | #include "command.h" |
26 | #include "gdbcmd.h" | |
27 | #include "ui-out.h" | |
28 | ||
309367d4 | 29 | #include "gdb_string.h" |
015a42b4 | 30 | |
fe1f4a5e | 31 | static struct cp_abi_ops *find_cp_abi (const char *short_name); |
015a42b4 | 32 | |
fe1f4a5e DJ |
33 | static struct cp_abi_ops current_cp_abi = { "", NULL }; |
34 | static struct cp_abi_ops auto_cp_abi = { "auto", NULL }; | |
015a42b4 | 35 | |
fe1f4a5e DJ |
36 | #define CP_ABI_MAX 8 |
37 | static struct cp_abi_ops *cp_abis[CP_ABI_MAX]; | |
38 | static int num_cp_abis = 0; | |
015a42b4 JB |
39 | |
40 | enum ctor_kinds | |
41 | is_constructor_name (const char *name) | |
42 | { | |
43 | if ((current_cp_abi.is_constructor_name) == NULL) | |
8a3fe4f8 | 44 | error (_("ABI doesn't define required function is_constructor_name")); |
015a42b4 JB |
45 | return (*current_cp_abi.is_constructor_name) (name); |
46 | } | |
47 | ||
48 | enum dtor_kinds | |
49 | is_destructor_name (const char *name) | |
50 | { | |
51 | if ((current_cp_abi.is_destructor_name) == NULL) | |
8a3fe4f8 | 52 | error (_("ABI doesn't define required function is_destructor_name")); |
015a42b4 JB |
53 | return (*current_cp_abi.is_destructor_name) (name); |
54 | } | |
55 | ||
56 | int | |
57 | is_vtable_name (const char *name) | |
58 | { | |
59 | if ((current_cp_abi.is_vtable_name) == NULL) | |
8a3fe4f8 | 60 | error (_("ABI doesn't define required function is_vtable_name")); |
015a42b4 JB |
61 | return (*current_cp_abi.is_vtable_name) (name); |
62 | } | |
63 | ||
64 | int | |
65 | is_operator_name (const char *name) | |
66 | { | |
67 | if ((current_cp_abi.is_operator_name) == NULL) | |
8a3fe4f8 | 68 | error (_("ABI doesn't define required function is_operator_name")); |
015a42b4 JB |
69 | return (*current_cp_abi.is_operator_name) (name); |
70 | } | |
71 | ||
1514d34e | 72 | int |
06c4d4dc | 73 | baseclass_offset (struct type *type, int index, const bfd_byte *valaddr, |
1514d34e DJ |
74 | CORE_ADDR address) |
75 | { | |
76 | if (current_cp_abi.baseclass_offset == NULL) | |
8a3fe4f8 | 77 | error (_("ABI doesn't define required function baseclass_offset")); |
1514d34e DJ |
78 | return (*current_cp_abi.baseclass_offset) (type, index, valaddr, address); |
79 | } | |
80 | ||
e933e538 | 81 | struct value * |
fe1f4a5e DJ |
82 | value_virtual_fn_field (struct value **arg1p, struct fn_field *f, int j, |
83 | struct type *type, int offset) | |
015a42b4 JB |
84 | { |
85 | if ((current_cp_abi.virtual_fn_field) == NULL) | |
86 | return NULL; | |
87 | return (*current_cp_abi.virtual_fn_field) (arg1p, f, j, type, offset); | |
88 | } | |
1514d34e | 89 | |
015a42b4 | 90 | struct type * |
e933e538 | 91 | value_rtti_type (struct value *v, int *full, int *top, int *using_enc) |
015a42b4 JB |
92 | { |
93 | if ((current_cp_abi.rtti_type) == NULL) | |
94 | return NULL; | |
95 | return (*current_cp_abi.rtti_type) (v, full, top, using_enc); | |
96 | } | |
97 | ||
0d5de010 DJ |
98 | void |
99 | cplus_print_method_ptr (const gdb_byte *contents, struct type *type, | |
100 | struct ui_file *stream) | |
101 | { | |
102 | if (current_cp_abi.print_method_ptr == NULL) | |
103 | error (_("GDB does not support pointers to methods on this target")); | |
104 | (*current_cp_abi.print_method_ptr) (contents, type, stream); | |
105 | } | |
106 | ||
107 | int | |
108 | cplus_method_ptr_size (void) | |
109 | { | |
110 | if (current_cp_abi.method_ptr_size == NULL) | |
111 | error (_("GDB does not support pointers to methods on this target")); | |
112 | return (*current_cp_abi.method_ptr_size) (); | |
113 | } | |
114 | ||
115 | void | |
116 | cplus_make_method_ptr (gdb_byte *contents, CORE_ADDR value, int is_virtual) | |
117 | { | |
118 | if (current_cp_abi.make_method_ptr == NULL) | |
119 | error (_("GDB does not support pointers to methods on this target")); | |
120 | (*current_cp_abi.make_method_ptr) (contents, value, is_virtual); | |
121 | } | |
122 | ||
123 | struct value * | |
124 | cplus_method_ptr_to_value (struct value **this_p, struct value *method_ptr) | |
125 | { | |
126 | if (current_cp_abi.method_ptr_to_value == NULL) | |
127 | error (_("GDB does not support pointers to methods on this target")); | |
128 | return (*current_cp_abi.method_ptr_to_value) (this_p, method_ptr); | |
129 | } | |
130 | ||
fe1f4a5e DJ |
131 | /* Set the current C++ ABI to SHORT_NAME. */ |
132 | ||
133 | static int | |
134 | switch_to_cp_abi (const char *short_name) | |
135 | { | |
136 | struct cp_abi_ops *abi; | |
137 | ||
138 | abi = find_cp_abi (short_name); | |
139 | if (abi == NULL) | |
140 | return 0; | |
141 | ||
142 | current_cp_abi = *abi; | |
143 | return 1; | |
144 | } | |
145 | ||
146 | /* Add ABI to the list of supported C++ ABI's. */ | |
147 | ||
015a42b4 | 148 | int |
fe1f4a5e | 149 | register_cp_abi (struct cp_abi_ops *abi) |
015a42b4 | 150 | { |
fe1f4a5e DJ |
151 | if (num_cp_abis == CP_ABI_MAX) |
152 | internal_error (__FILE__, __LINE__, | |
e2e0b3e5 | 153 | _("Too many C++ ABIs, please increase CP_ABI_MAX in cp-abi.c")); |
fe1f4a5e | 154 | |
015a42b4 JB |
155 | cp_abis[num_cp_abis++] = abi; |
156 | ||
157 | return 1; | |
fe1f4a5e DJ |
158 | } |
159 | ||
160 | /* Set the ABI to use in "auto" mode to SHORT_NAME. */ | |
015a42b4 | 161 | |
fe1f4a5e DJ |
162 | void |
163 | set_cp_abi_as_auto_default (const char *short_name) | |
164 | { | |
165 | char *new_longname, *new_doc; | |
166 | struct cp_abi_ops *abi = find_cp_abi (short_name); | |
167 | ||
168 | if (abi == NULL) | |
169 | internal_error (__FILE__, __LINE__, | |
e2e0b3e5 | 170 | _("Cannot find C++ ABI \"%s\" to set it as auto default."), |
fe1f4a5e DJ |
171 | short_name); |
172 | ||
173 | if (auto_cp_abi.longname != NULL) | |
174 | xfree ((char *) auto_cp_abi.longname); | |
175 | if (auto_cp_abi.doc != NULL) | |
176 | xfree ((char *) auto_cp_abi.doc); | |
177 | ||
178 | auto_cp_abi = *abi; | |
179 | ||
180 | auto_cp_abi.shortname = "auto"; | |
049742da | 181 | xasprintf (&new_longname, "currently \"%s\"", abi->shortname); |
fe1f4a5e DJ |
182 | auto_cp_abi.longname = new_longname; |
183 | ||
049742da MK |
184 | xasprintf (&new_doc, "Automatically selected; currently \"%s\"", |
185 | abi->shortname); | |
fe1f4a5e DJ |
186 | auto_cp_abi.doc = new_doc; |
187 | ||
188 | /* Since we copy the current ABI into current_cp_abi instead of | |
189 | using a pointer, if auto is currently the default, we need to | |
190 | reset it. */ | |
191 | if (strcmp (current_cp_abi.shortname, "auto") == 0) | |
192 | switch_to_cp_abi ("auto"); | |
015a42b4 JB |
193 | } |
194 | ||
fe1f4a5e DJ |
195 | /* Return the ABI operations associated with SHORT_NAME. */ |
196 | ||
197 | static struct cp_abi_ops * | |
198 | find_cp_abi (const char *short_name) | |
015a42b4 JB |
199 | { |
200 | int i; | |
fe1f4a5e | 201 | |
015a42b4 | 202 | for (i = 0; i < num_cp_abis; i++) |
fe1f4a5e DJ |
203 | if (strcmp (cp_abis[i]->shortname, short_name) == 0) |
204 | return cp_abis[i]; | |
205 | ||
206 | return NULL; | |
015a42b4 JB |
207 | } |
208 | ||
fe1f4a5e DJ |
209 | /* Display the list of registered C++ ABIs. */ |
210 | ||
211 | static void | |
212 | list_cp_abis (int from_tty) | |
213 | { | |
214 | struct cleanup *cleanup_chain; | |
215 | int i; | |
216 | ui_out_text (uiout, "The available C++ ABIs are:\n"); | |
217 | ||
218 | cleanup_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "cp-abi-list"); | |
219 | for (i = 0; i < num_cp_abis; i++) | |
220 | { | |
221 | char pad[14]; | |
222 | int padcount; | |
223 | ||
224 | ui_out_text (uiout, " "); | |
225 | ui_out_field_string (uiout, "cp-abi", cp_abis[i]->shortname); | |
226 | ||
227 | padcount = 16 - 2 - strlen (cp_abis[i]->shortname); | |
228 | pad[padcount] = 0; | |
229 | while (padcount > 0) | |
230 | pad[--padcount] = ' '; | |
231 | ui_out_text (uiout, pad); | |
232 | ||
233 | ui_out_field_string (uiout, "doc", cp_abis[i]->doc); | |
234 | ui_out_text (uiout, "\n"); | |
235 | } | |
236 | do_cleanups (cleanup_chain); | |
237 | } | |
238 | ||
239 | /* Set the current C++ ABI, or display the list of options if no | |
240 | argument is given. */ | |
241 | ||
242 | static void | |
243 | set_cp_abi_cmd (char *args, int from_tty) | |
244 | { | |
245 | if (args == NULL) | |
246 | { | |
247 | list_cp_abis (from_tty); | |
248 | return; | |
249 | } | |
250 | ||
251 | if (!switch_to_cp_abi (args)) | |
8a3fe4f8 | 252 | error (_("Could not find \"%s\" in ABI list"), args); |
fe1f4a5e DJ |
253 | } |
254 | ||
255 | /* Show the currently selected C++ ABI. */ | |
256 | ||
257 | static void | |
258 | show_cp_abi_cmd (char *args, int from_tty) | |
259 | { | |
260 | ui_out_text (uiout, "The currently selected C++ ABI is \""); | |
261 | ||
262 | ui_out_field_string (uiout, "cp-abi", current_cp_abi.shortname); | |
263 | ui_out_text (uiout, "\" ("); | |
264 | ui_out_field_string (uiout, "longname", current_cp_abi.longname); | |
265 | ui_out_text (uiout, ").\n"); | |
266 | } | |
267 | ||
b9362cc7 AC |
268 | extern initialize_file_ftype _initialize_cp_abi; /* -Wmissing-prototypes */ |
269 | ||
fe1f4a5e DJ |
270 | void |
271 | _initialize_cp_abi (void) | |
272 | { | |
273 | register_cp_abi (&auto_cp_abi); | |
274 | switch_to_cp_abi ("auto"); | |
275 | ||
1a966eab AC |
276 | add_cmd ("cp-abi", class_obscure, set_cp_abi_cmd, _("\ |
277 | Set the ABI used for inspecting C++ objects.\n\ | |
278 | \"set cp-abi\" with no arguments will list the available ABIs."), | |
fe1f4a5e DJ |
279 | &setlist); |
280 | ||
281 | add_cmd ("cp-abi", class_obscure, show_cp_abi_cmd, | |
1a966eab | 282 | _("Show the ABI used for inspecting C++ objects."), &showlist); |
fe1f4a5e | 283 | } |