Commit | Line | Data |
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015a42b4 | 1 | /* Generic code for supporting multiple C++ ABI's |
06c4d4dc AC |
2 | |
3 | Copyright 2001, 2002, 2003, 2005 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 | |
19 | Foundation, Inc., 59 Temple Place - Suite 330, | |
20 | Boston, MA 02111-1307, USA. */ | |
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 | ||
fe1f4a5e DJ |
98 | /* Set the current C++ ABI to SHORT_NAME. */ |
99 | ||
100 | static int | |
101 | switch_to_cp_abi (const char *short_name) | |
102 | { | |
103 | struct cp_abi_ops *abi; | |
104 | ||
105 | abi = find_cp_abi (short_name); | |
106 | if (abi == NULL) | |
107 | return 0; | |
108 | ||
109 | current_cp_abi = *abi; | |
110 | return 1; | |
111 | } | |
112 | ||
113 | /* Add ABI to the list of supported C++ ABI's. */ | |
114 | ||
015a42b4 | 115 | int |
fe1f4a5e | 116 | register_cp_abi (struct cp_abi_ops *abi) |
015a42b4 | 117 | { |
fe1f4a5e DJ |
118 | if (num_cp_abis == CP_ABI_MAX) |
119 | internal_error (__FILE__, __LINE__, | |
120 | "Too many C++ ABIs, please increase CP_ABI_MAX in cp-abi.c"); | |
121 | ||
015a42b4 JB |
122 | cp_abis[num_cp_abis++] = abi; |
123 | ||
124 | return 1; | |
fe1f4a5e DJ |
125 | } |
126 | ||
127 | /* Set the ABI to use in "auto" mode to SHORT_NAME. */ | |
015a42b4 | 128 | |
fe1f4a5e DJ |
129 | void |
130 | set_cp_abi_as_auto_default (const char *short_name) | |
131 | { | |
132 | char *new_longname, *new_doc; | |
133 | struct cp_abi_ops *abi = find_cp_abi (short_name); | |
134 | ||
135 | if (abi == NULL) | |
136 | internal_error (__FILE__, __LINE__, | |
137 | "Cannot find C++ ABI \"%s\" to set it as auto default.", | |
138 | short_name); | |
139 | ||
140 | if (auto_cp_abi.longname != NULL) | |
141 | xfree ((char *) auto_cp_abi.longname); | |
142 | if (auto_cp_abi.doc != NULL) | |
143 | xfree ((char *) auto_cp_abi.doc); | |
144 | ||
145 | auto_cp_abi = *abi; | |
146 | ||
147 | auto_cp_abi.shortname = "auto"; | |
148 | new_longname = xmalloc (strlen ("currently ") + 1 + strlen (abi->shortname) | |
149 | + 1 + 1); | |
150 | sprintf (new_longname, "currently \"%s\"", abi->shortname); | |
151 | auto_cp_abi.longname = new_longname; | |
152 | ||
153 | new_doc = xmalloc (strlen ("Automatically selected; currently ") | |
154 | + 1 + strlen (abi->shortname) + 1 + 1); | |
155 | sprintf (new_doc, "Automatically selected; currently \"%s\"", abi->shortname); | |
156 | auto_cp_abi.doc = new_doc; | |
157 | ||
158 | /* Since we copy the current ABI into current_cp_abi instead of | |
159 | using a pointer, if auto is currently the default, we need to | |
160 | reset it. */ | |
161 | if (strcmp (current_cp_abi.shortname, "auto") == 0) | |
162 | switch_to_cp_abi ("auto"); | |
015a42b4 JB |
163 | } |
164 | ||
fe1f4a5e DJ |
165 | /* Return the ABI operations associated with SHORT_NAME. */ |
166 | ||
167 | static struct cp_abi_ops * | |
168 | find_cp_abi (const char *short_name) | |
015a42b4 JB |
169 | { |
170 | int i; | |
fe1f4a5e | 171 | |
015a42b4 | 172 | for (i = 0; i < num_cp_abis; i++) |
fe1f4a5e DJ |
173 | if (strcmp (cp_abis[i]->shortname, short_name) == 0) |
174 | return cp_abis[i]; | |
175 | ||
176 | return NULL; | |
015a42b4 JB |
177 | } |
178 | ||
fe1f4a5e DJ |
179 | /* Display the list of registered C++ ABIs. */ |
180 | ||
181 | static void | |
182 | list_cp_abis (int from_tty) | |
183 | { | |
184 | struct cleanup *cleanup_chain; | |
185 | int i; | |
186 | ui_out_text (uiout, "The available C++ ABIs are:\n"); | |
187 | ||
188 | cleanup_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "cp-abi-list"); | |
189 | for (i = 0; i < num_cp_abis; i++) | |
190 | { | |
191 | char pad[14]; | |
192 | int padcount; | |
193 | ||
194 | ui_out_text (uiout, " "); | |
195 | ui_out_field_string (uiout, "cp-abi", cp_abis[i]->shortname); | |
196 | ||
197 | padcount = 16 - 2 - strlen (cp_abis[i]->shortname); | |
198 | pad[padcount] = 0; | |
199 | while (padcount > 0) | |
200 | pad[--padcount] = ' '; | |
201 | ui_out_text (uiout, pad); | |
202 | ||
203 | ui_out_field_string (uiout, "doc", cp_abis[i]->doc); | |
204 | ui_out_text (uiout, "\n"); | |
205 | } | |
206 | do_cleanups (cleanup_chain); | |
207 | } | |
208 | ||
209 | /* Set the current C++ ABI, or display the list of options if no | |
210 | argument is given. */ | |
211 | ||
212 | static void | |
213 | set_cp_abi_cmd (char *args, int from_tty) | |
214 | { | |
215 | if (args == NULL) | |
216 | { | |
217 | list_cp_abis (from_tty); | |
218 | return; | |
219 | } | |
220 | ||
221 | if (!switch_to_cp_abi (args)) | |
8a3fe4f8 | 222 | error (_("Could not find \"%s\" in ABI list"), args); |
fe1f4a5e DJ |
223 | } |
224 | ||
225 | /* Show the currently selected C++ ABI. */ | |
226 | ||
227 | static void | |
228 | show_cp_abi_cmd (char *args, int from_tty) | |
229 | { | |
230 | ui_out_text (uiout, "The currently selected C++ ABI is \""); | |
231 | ||
232 | ui_out_field_string (uiout, "cp-abi", current_cp_abi.shortname); | |
233 | ui_out_text (uiout, "\" ("); | |
234 | ui_out_field_string (uiout, "longname", current_cp_abi.longname); | |
235 | ui_out_text (uiout, ").\n"); | |
236 | } | |
237 | ||
b9362cc7 AC |
238 | extern initialize_file_ftype _initialize_cp_abi; /* -Wmissing-prototypes */ |
239 | ||
fe1f4a5e DJ |
240 | void |
241 | _initialize_cp_abi (void) | |
242 | { | |
243 | register_cp_abi (&auto_cp_abi); | |
244 | switch_to_cp_abi ("auto"); | |
245 | ||
246 | add_cmd ("cp-abi", class_obscure, set_cp_abi_cmd, | |
247 | "Set the ABI used for inspecting C++ objects.\n" | |
248 | "\"set cp-abi\" with no arguments will list the available ABIs.", | |
249 | &setlist); | |
250 | ||
251 | add_cmd ("cp-abi", class_obscure, show_cp_abi_cmd, | |
252 | "Show the ABI used for inspecting C++ objects.", &showlist); | |
253 | } |