1 /* Generic code for supporting multiple C++ ABI's
3 Copyright (C) 2001, 2002, 2003, 2005, 2006, 2007
4 Free Software Foundation, Inc.
6 This file is part of GDB.
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 3 of the License, or
11 (at your option) any later version.
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.
18 You should have received a copy of the GNU General Public License
19 along with this program. If not, see <http://www.gnu.org/licenses/>. */
28 #include "gdb_string.h"
30 static struct cp_abi_ops *find_cp_abi (const char *short_name);
32 static struct cp_abi_ops current_cp_abi = { "", NULL };
33 static struct cp_abi_ops auto_cp_abi = { "auto", NULL };
36 static struct cp_abi_ops *cp_abis[CP_ABI_MAX];
37 static int num_cp_abis = 0;
40 is_constructor_name (const char *name)
42 if ((current_cp_abi.is_constructor_name) == NULL)
43 error (_("ABI doesn't define required function is_constructor_name"));
44 return (*current_cp_abi.is_constructor_name) (name);
48 is_destructor_name (const char *name)
50 if ((current_cp_abi.is_destructor_name) == NULL)
51 error (_("ABI doesn't define required function is_destructor_name"));
52 return (*current_cp_abi.is_destructor_name) (name);
56 is_vtable_name (const char *name)
58 if ((current_cp_abi.is_vtable_name) == NULL)
59 error (_("ABI doesn't define required function is_vtable_name"));
60 return (*current_cp_abi.is_vtable_name) (name);
64 is_operator_name (const char *name)
66 if ((current_cp_abi.is_operator_name) == NULL)
67 error (_("ABI doesn't define required function is_operator_name"));
68 return (*current_cp_abi.is_operator_name) (name);
72 baseclass_offset (struct type *type, int index, const bfd_byte *valaddr,
75 if (current_cp_abi.baseclass_offset == NULL)
76 error (_("ABI doesn't define required function baseclass_offset"));
77 return (*current_cp_abi.baseclass_offset) (type, index, valaddr, address);
81 value_virtual_fn_field (struct value **arg1p, struct fn_field *f, int j,
82 struct type *type, int offset)
84 if ((current_cp_abi.virtual_fn_field) == NULL)
86 return (*current_cp_abi.virtual_fn_field) (arg1p, f, j, type, offset);
90 value_rtti_type (struct value *v, int *full, int *top, int *using_enc)
92 if ((current_cp_abi.rtti_type) == NULL)
94 return (*current_cp_abi.rtti_type) (v, full, top, using_enc);
98 cplus_print_method_ptr (const gdb_byte *contents, struct type *type,
99 struct ui_file *stream)
101 if (current_cp_abi.print_method_ptr == NULL)
102 error (_("GDB does not support pointers to methods on this target"));
103 (*current_cp_abi.print_method_ptr) (contents, type, stream);
107 cplus_method_ptr_size (void)
109 if (current_cp_abi.method_ptr_size == NULL)
110 error (_("GDB does not support pointers to methods on this target"));
111 return (*current_cp_abi.method_ptr_size) ();
115 cplus_make_method_ptr (gdb_byte *contents, CORE_ADDR value, int is_virtual)
117 if (current_cp_abi.make_method_ptr == NULL)
118 error (_("GDB does not support pointers to methods on this target"));
119 (*current_cp_abi.make_method_ptr) (contents, value, is_virtual);
123 cplus_skip_trampoline (struct frame_info *frame, CORE_ADDR stop_pc)
125 if (current_cp_abi.skip_trampoline == NULL)
127 return (*current_cp_abi.skip_trampoline) (frame, stop_pc);
131 cplus_method_ptr_to_value (struct value **this_p, struct value *method_ptr)
133 if (current_cp_abi.method_ptr_to_value == NULL)
134 error (_("GDB does not support pointers to methods on this target"));
135 return (*current_cp_abi.method_ptr_to_value) (this_p, method_ptr);
138 /* Set the current C++ ABI to SHORT_NAME. */
141 switch_to_cp_abi (const char *short_name)
143 struct cp_abi_ops *abi;
145 abi = find_cp_abi (short_name);
149 current_cp_abi = *abi;
153 /* Add ABI to the list of supported C++ ABI's. */
156 register_cp_abi (struct cp_abi_ops *abi)
158 if (num_cp_abis == CP_ABI_MAX)
159 internal_error (__FILE__, __LINE__,
160 _("Too many C++ ABIs, please increase CP_ABI_MAX in cp-abi.c"));
162 cp_abis[num_cp_abis++] = abi;
167 /* Set the ABI to use in "auto" mode to SHORT_NAME. */
170 set_cp_abi_as_auto_default (const char *short_name)
172 char *new_longname, *new_doc;
173 struct cp_abi_ops *abi = find_cp_abi (short_name);
176 internal_error (__FILE__, __LINE__,
177 _("Cannot find C++ ABI \"%s\" to set it as auto default."),
180 if (auto_cp_abi.longname != NULL)
181 xfree ((char *) auto_cp_abi.longname);
182 if (auto_cp_abi.doc != NULL)
183 xfree ((char *) auto_cp_abi.doc);
187 auto_cp_abi.shortname = "auto";
188 xasprintf (&new_longname, "currently \"%s\"", abi->shortname);
189 auto_cp_abi.longname = new_longname;
191 xasprintf (&new_doc, "Automatically selected; currently \"%s\"",
193 auto_cp_abi.doc = new_doc;
195 /* Since we copy the current ABI into current_cp_abi instead of
196 using a pointer, if auto is currently the default, we need to
198 if (strcmp (current_cp_abi.shortname, "auto") == 0)
199 switch_to_cp_abi ("auto");
202 /* Return the ABI operations associated with SHORT_NAME. */
204 static struct cp_abi_ops *
205 find_cp_abi (const char *short_name)
209 for (i = 0; i < num_cp_abis; i++)
210 if (strcmp (cp_abis[i]->shortname, short_name) == 0)
216 /* Display the list of registered C++ ABIs. */
219 list_cp_abis (int from_tty)
221 struct cleanup *cleanup_chain;
223 ui_out_text (uiout, "The available C++ ABIs are:\n");
225 cleanup_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "cp-abi-list");
226 for (i = 0; i < num_cp_abis; i++)
231 ui_out_text (uiout, " ");
232 ui_out_field_string (uiout, "cp-abi", cp_abis[i]->shortname);
234 padcount = 16 - 2 - strlen (cp_abis[i]->shortname);
237 pad[--padcount] = ' ';
238 ui_out_text (uiout, pad);
240 ui_out_field_string (uiout, "doc", cp_abis[i]->doc);
241 ui_out_text (uiout, "\n");
243 do_cleanups (cleanup_chain);
246 /* Set the current C++ ABI, or display the list of options if no
247 argument is given. */
250 set_cp_abi_cmd (char *args, int from_tty)
254 list_cp_abis (from_tty);
258 if (!switch_to_cp_abi (args))
259 error (_("Could not find \"%s\" in ABI list"), args);
262 /* Show the currently selected C++ ABI. */
265 show_cp_abi_cmd (char *args, int from_tty)
267 ui_out_text (uiout, "The currently selected C++ ABI is \"");
269 ui_out_field_string (uiout, "cp-abi", current_cp_abi.shortname);
270 ui_out_text (uiout, "\" (");
271 ui_out_field_string (uiout, "longname", current_cp_abi.longname);
272 ui_out_text (uiout, ").\n");
275 extern initialize_file_ftype _initialize_cp_abi; /* -Wmissing-prototypes */
278 _initialize_cp_abi (void)
280 register_cp_abi (&auto_cp_abi);
281 switch_to_cp_abi ("auto");
283 add_cmd ("cp-abi", class_obscure, set_cp_abi_cmd, _("\
284 Set the ABI used for inspecting C++ objects.\n\
285 \"set cp-abi\" with no arguments will list the available ABIs."),
288 add_cmd ("cp-abi", class_obscure, show_cp_abi_cmd,
289 _("Show the ABI used for inspecting C++ objects."), &showlist);