Commit | Line | Data |
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015a42b4 | 1 | /* Generic code for supporting multiple C++ ABI's |
06c4d4dc | 2 | |
6aba47ca DJ |
3 | Copyright (C) 2001, 2002, 2003, 2005, 2006, 2007 |
4 | Free Software Foundation, Inc. | |
015a42b4 JB |
5 | |
6 | This file is part of GDB. | |
7 | ||
8 | This program is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | This program is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with this program; if not, write to the Free Software | |
197e01b6 EZ |
20 | Foundation, Inc., 51 Franklin Street, Fifth Floor, |
21 | Boston, MA 02110-1301, USA. */ | |
015a42b4 JB |
22 | |
23 | #include "defs.h" | |
24 | #include "value.h" | |
25 | #include "cp-abi.h" | |
fe1f4a5e DJ |
26 | #include "command.h" |
27 | #include "gdbcmd.h" | |
28 | #include "ui-out.h" | |
29 | ||
309367d4 | 30 | #include "gdb_string.h" |
015a42b4 | 31 | |
fe1f4a5e | 32 | static struct cp_abi_ops *find_cp_abi (const char *short_name); |
015a42b4 | 33 | |
fe1f4a5e DJ |
34 | static struct cp_abi_ops current_cp_abi = { "", NULL }; |
35 | static struct cp_abi_ops auto_cp_abi = { "auto", NULL }; | |
015a42b4 | 36 | |
fe1f4a5e DJ |
37 | #define CP_ABI_MAX 8 |
38 | static struct cp_abi_ops *cp_abis[CP_ABI_MAX]; | |
39 | static int num_cp_abis = 0; | |
015a42b4 JB |
40 | |
41 | enum ctor_kinds | |
42 | is_constructor_name (const char *name) | |
43 | { | |
44 | if ((current_cp_abi.is_constructor_name) == NULL) | |
8a3fe4f8 | 45 | error (_("ABI doesn't define required function is_constructor_name")); |
015a42b4 JB |
46 | return (*current_cp_abi.is_constructor_name) (name); |
47 | } | |
48 | ||
49 | enum dtor_kinds | |
50 | is_destructor_name (const char *name) | |
51 | { | |
52 | if ((current_cp_abi.is_destructor_name) == NULL) | |
8a3fe4f8 | 53 | error (_("ABI doesn't define required function is_destructor_name")); |
015a42b4 JB |
54 | return (*current_cp_abi.is_destructor_name) (name); |
55 | } | |
56 | ||
57 | int | |
58 | is_vtable_name (const char *name) | |
59 | { | |
60 | if ((current_cp_abi.is_vtable_name) == NULL) | |
8a3fe4f8 | 61 | error (_("ABI doesn't define required function is_vtable_name")); |
015a42b4 JB |
62 | return (*current_cp_abi.is_vtable_name) (name); |
63 | } | |
64 | ||
65 | int | |
66 | is_operator_name (const char *name) | |
67 | { | |
68 | if ((current_cp_abi.is_operator_name) == NULL) | |
8a3fe4f8 | 69 | error (_("ABI doesn't define required function is_operator_name")); |
015a42b4 JB |
70 | return (*current_cp_abi.is_operator_name) (name); |
71 | } | |
72 | ||
1514d34e | 73 | int |
06c4d4dc | 74 | baseclass_offset (struct type *type, int index, const bfd_byte *valaddr, |
1514d34e DJ |
75 | CORE_ADDR address) |
76 | { | |
77 | if (current_cp_abi.baseclass_offset == NULL) | |
8a3fe4f8 | 78 | error (_("ABI doesn't define required function baseclass_offset")); |
1514d34e DJ |
79 | return (*current_cp_abi.baseclass_offset) (type, index, valaddr, address); |
80 | } | |
81 | ||
e933e538 | 82 | struct value * |
fe1f4a5e DJ |
83 | value_virtual_fn_field (struct value **arg1p, struct fn_field *f, int j, |
84 | struct type *type, int offset) | |
015a42b4 JB |
85 | { |
86 | if ((current_cp_abi.virtual_fn_field) == NULL) | |
87 | return NULL; | |
88 | return (*current_cp_abi.virtual_fn_field) (arg1p, f, j, type, offset); | |
89 | } | |
1514d34e | 90 | |
015a42b4 | 91 | struct type * |
e933e538 | 92 | value_rtti_type (struct value *v, int *full, int *top, int *using_enc) |
015a42b4 JB |
93 | { |
94 | if ((current_cp_abi.rtti_type) == NULL) | |
95 | return NULL; | |
96 | return (*current_cp_abi.rtti_type) (v, full, top, using_enc); | |
97 | } | |
98 | ||
0d5de010 DJ |
99 | void |
100 | cplus_print_method_ptr (const gdb_byte *contents, struct type *type, | |
101 | struct ui_file *stream) | |
102 | { | |
103 | if (current_cp_abi.print_method_ptr == NULL) | |
104 | error (_("GDB does not support pointers to methods on this target")); | |
105 | (*current_cp_abi.print_method_ptr) (contents, type, stream); | |
106 | } | |
107 | ||
108 | int | |
109 | cplus_method_ptr_size (void) | |
110 | { | |
111 | if (current_cp_abi.method_ptr_size == NULL) | |
112 | error (_("GDB does not support pointers to methods on this target")); | |
113 | return (*current_cp_abi.method_ptr_size) (); | |
114 | } | |
115 | ||
116 | void | |
117 | cplus_make_method_ptr (gdb_byte *contents, CORE_ADDR value, int is_virtual) | |
118 | { | |
119 | if (current_cp_abi.make_method_ptr == NULL) | |
120 | error (_("GDB does not support pointers to methods on this target")); | |
121 | (*current_cp_abi.make_method_ptr) (contents, value, is_virtual); | |
122 | } | |
123 | ||
124 | struct value * | |
125 | cplus_method_ptr_to_value (struct value **this_p, struct value *method_ptr) | |
126 | { | |
127 | if (current_cp_abi.method_ptr_to_value == NULL) | |
128 | error (_("GDB does not support pointers to methods on this target")); | |
129 | return (*current_cp_abi.method_ptr_to_value) (this_p, method_ptr); | |
130 | } | |
131 | ||
fe1f4a5e DJ |
132 | /* Set the current C++ ABI to SHORT_NAME. */ |
133 | ||
134 | static int | |
135 | switch_to_cp_abi (const char *short_name) | |
136 | { | |
137 | struct cp_abi_ops *abi; | |
138 | ||
139 | abi = find_cp_abi (short_name); | |
140 | if (abi == NULL) | |
141 | return 0; | |
142 | ||
143 | current_cp_abi = *abi; | |
144 | return 1; | |
145 | } | |
146 | ||
147 | /* Add ABI to the list of supported C++ ABI's. */ | |
148 | ||
015a42b4 | 149 | int |
fe1f4a5e | 150 | register_cp_abi (struct cp_abi_ops *abi) |
015a42b4 | 151 | { |
fe1f4a5e DJ |
152 | if (num_cp_abis == CP_ABI_MAX) |
153 | internal_error (__FILE__, __LINE__, | |
e2e0b3e5 | 154 | _("Too many C++ ABIs, please increase CP_ABI_MAX in cp-abi.c")); |
fe1f4a5e | 155 | |
015a42b4 JB |
156 | cp_abis[num_cp_abis++] = abi; |
157 | ||
158 | return 1; | |
fe1f4a5e DJ |
159 | } |
160 | ||
161 | /* Set the ABI to use in "auto" mode to SHORT_NAME. */ | |
015a42b4 | 162 | |
fe1f4a5e DJ |
163 | void |
164 | set_cp_abi_as_auto_default (const char *short_name) | |
165 | { | |
166 | char *new_longname, *new_doc; | |
167 | struct cp_abi_ops *abi = find_cp_abi (short_name); | |
168 | ||
169 | if (abi == NULL) | |
170 | internal_error (__FILE__, __LINE__, | |
e2e0b3e5 | 171 | _("Cannot find C++ ABI \"%s\" to set it as auto default."), |
fe1f4a5e DJ |
172 | short_name); |
173 | ||
174 | if (auto_cp_abi.longname != NULL) | |
175 | xfree ((char *) auto_cp_abi.longname); | |
176 | if (auto_cp_abi.doc != NULL) | |
177 | xfree ((char *) auto_cp_abi.doc); | |
178 | ||
179 | auto_cp_abi = *abi; | |
180 | ||
181 | auto_cp_abi.shortname = "auto"; | |
049742da | 182 | xasprintf (&new_longname, "currently \"%s\"", abi->shortname); |
fe1f4a5e DJ |
183 | auto_cp_abi.longname = new_longname; |
184 | ||
049742da MK |
185 | xasprintf (&new_doc, "Automatically selected; currently \"%s\"", |
186 | abi->shortname); | |
fe1f4a5e DJ |
187 | auto_cp_abi.doc = new_doc; |
188 | ||
189 | /* Since we copy the current ABI into current_cp_abi instead of | |
190 | using a pointer, if auto is currently the default, we need to | |
191 | reset it. */ | |
192 | if (strcmp (current_cp_abi.shortname, "auto") == 0) | |
193 | switch_to_cp_abi ("auto"); | |
015a42b4 JB |
194 | } |
195 | ||
fe1f4a5e DJ |
196 | /* Return the ABI operations associated with SHORT_NAME. */ |
197 | ||
198 | static struct cp_abi_ops * | |
199 | find_cp_abi (const char *short_name) | |
015a42b4 JB |
200 | { |
201 | int i; | |
fe1f4a5e | 202 | |
015a42b4 | 203 | for (i = 0; i < num_cp_abis; i++) |
fe1f4a5e DJ |
204 | if (strcmp (cp_abis[i]->shortname, short_name) == 0) |
205 | return cp_abis[i]; | |
206 | ||
207 | return NULL; | |
015a42b4 JB |
208 | } |
209 | ||
fe1f4a5e DJ |
210 | /* Display the list of registered C++ ABIs. */ |
211 | ||
212 | static void | |
213 | list_cp_abis (int from_tty) | |
214 | { | |
215 | struct cleanup *cleanup_chain; | |
216 | int i; | |
217 | ui_out_text (uiout, "The available C++ ABIs are:\n"); | |
218 | ||
219 | cleanup_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "cp-abi-list"); | |
220 | for (i = 0; i < num_cp_abis; i++) | |
221 | { | |
222 | char pad[14]; | |
223 | int padcount; | |
224 | ||
225 | ui_out_text (uiout, " "); | |
226 | ui_out_field_string (uiout, "cp-abi", cp_abis[i]->shortname); | |
227 | ||
228 | padcount = 16 - 2 - strlen (cp_abis[i]->shortname); | |
229 | pad[padcount] = 0; | |
230 | while (padcount > 0) | |
231 | pad[--padcount] = ' '; | |
232 | ui_out_text (uiout, pad); | |
233 | ||
234 | ui_out_field_string (uiout, "doc", cp_abis[i]->doc); | |
235 | ui_out_text (uiout, "\n"); | |
236 | } | |
237 | do_cleanups (cleanup_chain); | |
238 | } | |
239 | ||
240 | /* Set the current C++ ABI, or display the list of options if no | |
241 | argument is given. */ | |
242 | ||
243 | static void | |
244 | set_cp_abi_cmd (char *args, int from_tty) | |
245 | { | |
246 | if (args == NULL) | |
247 | { | |
248 | list_cp_abis (from_tty); | |
249 | return; | |
250 | } | |
251 | ||
252 | if (!switch_to_cp_abi (args)) | |
8a3fe4f8 | 253 | error (_("Could not find \"%s\" in ABI list"), args); |
fe1f4a5e DJ |
254 | } |
255 | ||
256 | /* Show the currently selected C++ ABI. */ | |
257 | ||
258 | static void | |
259 | show_cp_abi_cmd (char *args, int from_tty) | |
260 | { | |
261 | ui_out_text (uiout, "The currently selected C++ ABI is \""); | |
262 | ||
263 | ui_out_field_string (uiout, "cp-abi", current_cp_abi.shortname); | |
264 | ui_out_text (uiout, "\" ("); | |
265 | ui_out_field_string (uiout, "longname", current_cp_abi.longname); | |
266 | ui_out_text (uiout, ").\n"); | |
267 | } | |
268 | ||
b9362cc7 AC |
269 | extern initialize_file_ftype _initialize_cp_abi; /* -Wmissing-prototypes */ |
270 | ||
fe1f4a5e DJ |
271 | void |
272 | _initialize_cp_abi (void) | |
273 | { | |
274 | register_cp_abi (&auto_cp_abi); | |
275 | switch_to_cp_abi ("auto"); | |
276 | ||
1a966eab AC |
277 | add_cmd ("cp-abi", class_obscure, set_cp_abi_cmd, _("\ |
278 | Set the ABI used for inspecting C++ objects.\n\ | |
279 | \"set cp-abi\" with no arguments will list the available ABIs."), | |
fe1f4a5e DJ |
280 | &setlist); |
281 | ||
282 | add_cmd ("cp-abi", class_obscure, show_cp_abi_cmd, | |
1a966eab | 283 | _("Show the ABI used for inspecting C++ objects."), &showlist); |
fe1f4a5e | 284 | } |