1 /* Generic code for supporting multiple C++ ABI's
3 Copyright 2001, 2002, 2003, 2005 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., 59 Temple Place - Suite 330,
20 Boston, MA 02111-1307, 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);
98 /* Set the current C++ ABI to SHORT_NAME. */
101 switch_to_cp_abi (const char *short_name)
103 struct cp_abi_ops *abi;
105 abi = find_cp_abi (short_name);
109 current_cp_abi = *abi;
113 /* Add ABI to the list of supported C++ ABI's. */
116 register_cp_abi (struct cp_abi_ops *abi)
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"));
122 cp_abis[num_cp_abis++] = abi;
127 /* Set the ABI to use in "auto" mode to SHORT_NAME. */
130 set_cp_abi_as_auto_default (const char *short_name)
132 char *new_longname, *new_doc;
133 struct cp_abi_ops *abi = find_cp_abi (short_name);
136 internal_error (__FILE__, __LINE__,
137 _("Cannot find C++ ABI \"%s\" to set it as auto default."),
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);
147 auto_cp_abi.shortname = "auto";
148 new_longname = xmalloc (strlen ("currently ") + 1 + strlen (abi->shortname)
150 sprintf (new_longname, "currently \"%s\"", abi->shortname);
151 auto_cp_abi.longname = new_longname;
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;
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
161 if (strcmp (current_cp_abi.shortname, "auto") == 0)
162 switch_to_cp_abi ("auto");
165 /* Return the ABI operations associated with SHORT_NAME. */
167 static struct cp_abi_ops *
168 find_cp_abi (const char *short_name)
172 for (i = 0; i < num_cp_abis; i++)
173 if (strcmp (cp_abis[i]->shortname, short_name) == 0)
179 /* Display the list of registered C++ ABIs. */
182 list_cp_abis (int from_tty)
184 struct cleanup *cleanup_chain;
186 ui_out_text (uiout, "The available C++ ABIs are:\n");
188 cleanup_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "cp-abi-list");
189 for (i = 0; i < num_cp_abis; i++)
194 ui_out_text (uiout, " ");
195 ui_out_field_string (uiout, "cp-abi", cp_abis[i]->shortname);
197 padcount = 16 - 2 - strlen (cp_abis[i]->shortname);
200 pad[--padcount] = ' ';
201 ui_out_text (uiout, pad);
203 ui_out_field_string (uiout, "doc", cp_abis[i]->doc);
204 ui_out_text (uiout, "\n");
206 do_cleanups (cleanup_chain);
209 /* Set the current C++ ABI, or display the list of options if no
210 argument is given. */
213 set_cp_abi_cmd (char *args, int from_tty)
217 list_cp_abis (from_tty);
221 if (!switch_to_cp_abi (args))
222 error (_("Could not find \"%s\" in ABI list"), args);
225 /* Show the currently selected C++ ABI. */
228 show_cp_abi_cmd (char *args, int from_tty)
230 ui_out_text (uiout, "The currently selected C++ ABI is \"");
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");
238 extern initialize_file_ftype _initialize_cp_abi; /* -Wmissing-prototypes */
241 _initialize_cp_abi (void)
243 register_cp_abi (&auto_cp_abi);
244 switch_to_cp_abi ("auto");
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.",
251 add_cmd ("cp-abi", class_obscure, show_cp_abi_cmd,
252 "Show the ABI used for inspecting C++ objects.", &showlist);