1 /* Generic code for supporting multiple C++ ABI's
3 Copyright (C) 2001, 2002, 2003, 2005, 2006 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., 51 Franklin Street, Fifth Floor,
20 Boston, MA 02110-1301, USA. */
29 #include "gdb_string.h"
31 static struct cp_abi_ops *find_cp_abi (const char *short_name);
33 static struct cp_abi_ops current_cp_abi = { "", NULL };
34 static struct cp_abi_ops auto_cp_abi = { "auto", NULL };
37 static struct cp_abi_ops *cp_abis[CP_ABI_MAX];
38 static int num_cp_abis = 0;
41 is_constructor_name (const char *name)
43 if ((current_cp_abi.is_constructor_name) == NULL)
44 error (_("ABI doesn't define required function is_constructor_name"));
45 return (*current_cp_abi.is_constructor_name) (name);
49 is_destructor_name (const char *name)
51 if ((current_cp_abi.is_destructor_name) == NULL)
52 error (_("ABI doesn't define required function is_destructor_name"));
53 return (*current_cp_abi.is_destructor_name) (name);
57 is_vtable_name (const char *name)
59 if ((current_cp_abi.is_vtable_name) == NULL)
60 error (_("ABI doesn't define required function is_vtable_name"));
61 return (*current_cp_abi.is_vtable_name) (name);
65 is_operator_name (const char *name)
67 if ((current_cp_abi.is_operator_name) == NULL)
68 error (_("ABI doesn't define required function is_operator_name"));
69 return (*current_cp_abi.is_operator_name) (name);
73 baseclass_offset (struct type *type, int index, const bfd_byte *valaddr,
76 if (current_cp_abi.baseclass_offset == NULL)
77 error (_("ABI doesn't define required function baseclass_offset"));
78 return (*current_cp_abi.baseclass_offset) (type, index, valaddr, address);
82 value_virtual_fn_field (struct value **arg1p, struct fn_field *f, int j,
83 struct type *type, int offset)
85 if ((current_cp_abi.virtual_fn_field) == NULL)
87 return (*current_cp_abi.virtual_fn_field) (arg1p, f, j, type, offset);
91 value_rtti_type (struct value *v, int *full, int *top, int *using_enc)
93 if ((current_cp_abi.rtti_type) == NULL)
95 return (*current_cp_abi.rtti_type) (v, full, top, using_enc);
99 cplus_print_method_ptr (const gdb_byte *contents, struct type *type,
100 struct ui_file *stream)
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);
108 cplus_method_ptr_size (void)
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) ();
116 cplus_make_method_ptr (gdb_byte *contents, CORE_ADDR value, int is_virtual)
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);
124 cplus_method_ptr_to_value (struct value **this_p, struct value *method_ptr)
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);
131 /* Set the current C++ ABI to SHORT_NAME. */
134 switch_to_cp_abi (const char *short_name)
136 struct cp_abi_ops *abi;
138 abi = find_cp_abi (short_name);
142 current_cp_abi = *abi;
146 /* Add ABI to the list of supported C++ ABI's. */
149 register_cp_abi (struct cp_abi_ops *abi)
151 if (num_cp_abis == CP_ABI_MAX)
152 internal_error (__FILE__, __LINE__,
153 _("Too many C++ ABIs, please increase CP_ABI_MAX in cp-abi.c"));
155 cp_abis[num_cp_abis++] = abi;
160 /* Set the ABI to use in "auto" mode to SHORT_NAME. */
163 set_cp_abi_as_auto_default (const char *short_name)
165 char *new_longname, *new_doc;
166 struct cp_abi_ops *abi = find_cp_abi (short_name);
169 internal_error (__FILE__, __LINE__,
170 _("Cannot find C++ ABI \"%s\" to set it as auto default."),
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);
180 auto_cp_abi.shortname = "auto";
181 xasprintf (&new_longname, "currently \"%s\"", abi->shortname);
182 auto_cp_abi.longname = new_longname;
184 xasprintf (&new_doc, "Automatically selected; currently \"%s\"",
186 auto_cp_abi.doc = new_doc;
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
191 if (strcmp (current_cp_abi.shortname, "auto") == 0)
192 switch_to_cp_abi ("auto");
195 /* Return the ABI operations associated with SHORT_NAME. */
197 static struct cp_abi_ops *
198 find_cp_abi (const char *short_name)
202 for (i = 0; i < num_cp_abis; i++)
203 if (strcmp (cp_abis[i]->shortname, short_name) == 0)
209 /* Display the list of registered C++ ABIs. */
212 list_cp_abis (int from_tty)
214 struct cleanup *cleanup_chain;
216 ui_out_text (uiout, "The available C++ ABIs are:\n");
218 cleanup_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "cp-abi-list");
219 for (i = 0; i < num_cp_abis; i++)
224 ui_out_text (uiout, " ");
225 ui_out_field_string (uiout, "cp-abi", cp_abis[i]->shortname);
227 padcount = 16 - 2 - strlen (cp_abis[i]->shortname);
230 pad[--padcount] = ' ';
231 ui_out_text (uiout, pad);
233 ui_out_field_string (uiout, "doc", cp_abis[i]->doc);
234 ui_out_text (uiout, "\n");
236 do_cleanups (cleanup_chain);
239 /* Set the current C++ ABI, or display the list of options if no
240 argument is given. */
243 set_cp_abi_cmd (char *args, int from_tty)
247 list_cp_abis (from_tty);
251 if (!switch_to_cp_abi (args))
252 error (_("Could not find \"%s\" in ABI list"), args);
255 /* Show the currently selected C++ ABI. */
258 show_cp_abi_cmd (char *args, int from_tty)
260 ui_out_text (uiout, "The currently selected C++ ABI is \"");
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");
268 extern initialize_file_ftype _initialize_cp_abi; /* -Wmissing-prototypes */
271 _initialize_cp_abi (void)
273 register_cp_abi (&auto_cp_abi);
274 switch_to_cp_abi ("auto");
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."),
281 add_cmd ("cp-abi", class_obscure, show_cp_abi_cmd,
282 _("Show the ABI used for inspecting C++ objects."), &showlist);