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 2 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, write to the Free Software
20 Foundation, Inc., 51 Franklin Street, Fifth Floor,
21 Boston, MA 02110-1301, USA. */
30 #include "gdb_string.h"
32 static struct cp_abi_ops *find_cp_abi (const char *short_name);
34 static struct cp_abi_ops current_cp_abi = { "", NULL };
35 static struct cp_abi_ops auto_cp_abi = { "auto", NULL };
38 static struct cp_abi_ops *cp_abis[CP_ABI_MAX];
39 static int num_cp_abis = 0;
42 is_constructor_name (const char *name)
44 if ((current_cp_abi.is_constructor_name) == NULL)
45 error (_("ABI doesn't define required function is_constructor_name"));
46 return (*current_cp_abi.is_constructor_name) (name);
50 is_destructor_name (const char *name)
52 if ((current_cp_abi.is_destructor_name) == NULL)
53 error (_("ABI doesn't define required function is_destructor_name"));
54 return (*current_cp_abi.is_destructor_name) (name);
58 is_vtable_name (const char *name)
60 if ((current_cp_abi.is_vtable_name) == NULL)
61 error (_("ABI doesn't define required function is_vtable_name"));
62 return (*current_cp_abi.is_vtable_name) (name);
66 is_operator_name (const char *name)
68 if ((current_cp_abi.is_operator_name) == NULL)
69 error (_("ABI doesn't define required function is_operator_name"));
70 return (*current_cp_abi.is_operator_name) (name);
74 baseclass_offset (struct type *type, int index, const bfd_byte *valaddr,
77 if (current_cp_abi.baseclass_offset == NULL)
78 error (_("ABI doesn't define required function baseclass_offset"));
79 return (*current_cp_abi.baseclass_offset) (type, index, valaddr, address);
83 value_virtual_fn_field (struct value **arg1p, struct fn_field *f, int j,
84 struct type *type, int offset)
86 if ((current_cp_abi.virtual_fn_field) == NULL)
88 return (*current_cp_abi.virtual_fn_field) (arg1p, f, j, type, offset);
92 value_rtti_type (struct value *v, int *full, int *top, int *using_enc)
94 if ((current_cp_abi.rtti_type) == NULL)
96 return (*current_cp_abi.rtti_type) (v, full, top, using_enc);
100 cplus_print_method_ptr (const gdb_byte *contents, struct type *type,
101 struct ui_file *stream)
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);
109 cplus_method_ptr_size (void)
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) ();
117 cplus_make_method_ptr (gdb_byte *contents, CORE_ADDR value, int is_virtual)
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);
125 cplus_skip_trampoline (struct frame_info *frame, CORE_ADDR stop_pc)
127 if (current_cp_abi.skip_trampoline == NULL)
129 return (*current_cp_abi.skip_trampoline) (frame, stop_pc);
133 cplus_method_ptr_to_value (struct value **this_p, struct value *method_ptr)
135 if (current_cp_abi.method_ptr_to_value == NULL)
136 error (_("GDB does not support pointers to methods on this target"));
137 return (*current_cp_abi.method_ptr_to_value) (this_p, method_ptr);
140 /* Set the current C++ ABI to SHORT_NAME. */
143 switch_to_cp_abi (const char *short_name)
145 struct cp_abi_ops *abi;
147 abi = find_cp_abi (short_name);
151 current_cp_abi = *abi;
155 /* Add ABI to the list of supported C++ ABI's. */
158 register_cp_abi (struct cp_abi_ops *abi)
160 if (num_cp_abis == CP_ABI_MAX)
161 internal_error (__FILE__, __LINE__,
162 _("Too many C++ ABIs, please increase CP_ABI_MAX in cp-abi.c"));
164 cp_abis[num_cp_abis++] = abi;
169 /* Set the ABI to use in "auto" mode to SHORT_NAME. */
172 set_cp_abi_as_auto_default (const char *short_name)
174 char *new_longname, *new_doc;
175 struct cp_abi_ops *abi = find_cp_abi (short_name);
178 internal_error (__FILE__, __LINE__,
179 _("Cannot find C++ ABI \"%s\" to set it as auto default."),
182 if (auto_cp_abi.longname != NULL)
183 xfree ((char *) auto_cp_abi.longname);
184 if (auto_cp_abi.doc != NULL)
185 xfree ((char *) auto_cp_abi.doc);
189 auto_cp_abi.shortname = "auto";
190 xasprintf (&new_longname, "currently \"%s\"", abi->shortname);
191 auto_cp_abi.longname = new_longname;
193 xasprintf (&new_doc, "Automatically selected; currently \"%s\"",
195 auto_cp_abi.doc = new_doc;
197 /* Since we copy the current ABI into current_cp_abi instead of
198 using a pointer, if auto is currently the default, we need to
200 if (strcmp (current_cp_abi.shortname, "auto") == 0)
201 switch_to_cp_abi ("auto");
204 /* Return the ABI operations associated with SHORT_NAME. */
206 static struct cp_abi_ops *
207 find_cp_abi (const char *short_name)
211 for (i = 0; i < num_cp_abis; i++)
212 if (strcmp (cp_abis[i]->shortname, short_name) == 0)
218 /* Display the list of registered C++ ABIs. */
221 list_cp_abis (int from_tty)
223 struct cleanup *cleanup_chain;
225 ui_out_text (uiout, "The available C++ ABIs are:\n");
227 cleanup_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "cp-abi-list");
228 for (i = 0; i < num_cp_abis; i++)
233 ui_out_text (uiout, " ");
234 ui_out_field_string (uiout, "cp-abi", cp_abis[i]->shortname);
236 padcount = 16 - 2 - strlen (cp_abis[i]->shortname);
239 pad[--padcount] = ' ';
240 ui_out_text (uiout, pad);
242 ui_out_field_string (uiout, "doc", cp_abis[i]->doc);
243 ui_out_text (uiout, "\n");
245 do_cleanups (cleanup_chain);
248 /* Set the current C++ ABI, or display the list of options if no
249 argument is given. */
252 set_cp_abi_cmd (char *args, int from_tty)
256 list_cp_abis (from_tty);
260 if (!switch_to_cp_abi (args))
261 error (_("Could not find \"%s\" in ABI list"), args);
264 /* Show the currently selected C++ ABI. */
267 show_cp_abi_cmd (char *args, int from_tty)
269 ui_out_text (uiout, "The currently selected C++ ABI is \"");
271 ui_out_field_string (uiout, "cp-abi", current_cp_abi.shortname);
272 ui_out_text (uiout, "\" (");
273 ui_out_field_string (uiout, "longname", current_cp_abi.longname);
274 ui_out_text (uiout, ").\n");
277 extern initialize_file_ftype _initialize_cp_abi; /* -Wmissing-prototypes */
280 _initialize_cp_abi (void)
282 register_cp_abi (&auto_cp_abi);
283 switch_to_cp_abi ("auto");
285 add_cmd ("cp-abi", class_obscure, set_cp_abi_cmd, _("\
286 Set the ABI used for inspecting C++ objects.\n\
287 \"set cp-abi\" with no arguments will list the available ABIs."),
290 add_cmd ("cp-abi", class_obscure, show_cp_abi_cmd,
291 _("Show the ABI used for inspecting C++ objects."), &showlist);