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
);