198944Sobrien/* Generic code for supporting multiple C++ ABI's 2130803Smarcel Copyright 2001, 2002, 2003 Free Software Foundation, Inc. 398944Sobrien 498944Sobrien This file is part of GDB. 598944Sobrien 698944Sobrien This program is free software; you can redistribute it and/or modify 798944Sobrien it under the terms of the GNU General Public License as published by 898944Sobrien the Free Software Foundation; either version 2 of the License, or 998944Sobrien (at your option) any later version. 1098944Sobrien 1198944Sobrien This program is distributed in the hope that it will be useful, 1298944Sobrien but WITHOUT ANY WARRANTY; without even the implied warranty of 1398944Sobrien MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 1498944Sobrien GNU General Public License for more details. 1598944Sobrien 1698944Sobrien You should have received a copy of the GNU General Public License 1798944Sobrien along with this program; if not, write to the Free Software 1898944Sobrien Foundation, Inc., 59 Temple Place - Suite 330, 1998944Sobrien Boston, MA 02111-1307, USA. */ 2098944Sobrien 2198944Sobrien#include "defs.h" 2298944Sobrien#include "value.h" 2398944Sobrien#include "cp-abi.h" 24130803Smarcel#include "command.h" 25130803Smarcel#include "gdbcmd.h" 26130803Smarcel#include "ui-out.h" 2798944Sobrien 28130803Smarcel#include "gdb_string.h" 2998944Sobrien 30130803Smarcelstatic struct cp_abi_ops *find_cp_abi (const char *short_name); 3198944Sobrien 32130803Smarcelstatic struct cp_abi_ops current_cp_abi = { "", NULL }; 33130803Smarcelstatic struct cp_abi_ops auto_cp_abi = { "auto", NULL }; 3498944Sobrien 35130803Smarcel#define CP_ABI_MAX 8 36130803Smarcelstatic struct cp_abi_ops *cp_abis[CP_ABI_MAX]; 37130803Smarcelstatic int num_cp_abis = 0; 38130803Smarcel 3998944Sobrienenum ctor_kinds 4098944Sobrienis_constructor_name (const char *name) 4198944Sobrien{ 4298944Sobrien if ((current_cp_abi.is_constructor_name) == NULL) 4398944Sobrien error ("ABI doesn't define required function is_constructor_name"); 4498944Sobrien return (*current_cp_abi.is_constructor_name) (name); 4598944Sobrien} 4698944Sobrien 4798944Sobrienenum dtor_kinds 4898944Sobrienis_destructor_name (const char *name) 4998944Sobrien{ 5098944Sobrien if ((current_cp_abi.is_destructor_name) == NULL) 5198944Sobrien error ("ABI doesn't define required function is_destructor_name"); 5298944Sobrien return (*current_cp_abi.is_destructor_name) (name); 5398944Sobrien} 5498944Sobrien 5598944Sobrienint 5698944Sobrienis_vtable_name (const char *name) 5798944Sobrien{ 5898944Sobrien if ((current_cp_abi.is_vtable_name) == NULL) 5998944Sobrien error ("ABI doesn't define required function is_vtable_name"); 6098944Sobrien return (*current_cp_abi.is_vtable_name) (name); 6198944Sobrien} 6298944Sobrien 6398944Sobrienint 6498944Sobrienis_operator_name (const char *name) 6598944Sobrien{ 6698944Sobrien if ((current_cp_abi.is_operator_name) == NULL) 6798944Sobrien error ("ABI doesn't define required function is_operator_name"); 6898944Sobrien return (*current_cp_abi.is_operator_name) (name); 6998944Sobrien} 7098944Sobrien 7198944Sobrienint 7298944Sobrienbaseclass_offset (struct type *type, int index, char *valaddr, 7398944Sobrien CORE_ADDR address) 7498944Sobrien{ 7598944Sobrien if (current_cp_abi.baseclass_offset == NULL) 7698944Sobrien error ("ABI doesn't define required function baseclass_offset"); 7798944Sobrien return (*current_cp_abi.baseclass_offset) (type, index, valaddr, address); 7898944Sobrien} 7998944Sobrien 8098944Sobrienstruct value * 81130803Smarcelvalue_virtual_fn_field (struct value **arg1p, struct fn_field *f, int j, 82130803Smarcel struct type *type, int offset) 8398944Sobrien{ 8498944Sobrien if ((current_cp_abi.virtual_fn_field) == NULL) 8598944Sobrien return NULL; 8698944Sobrien return (*current_cp_abi.virtual_fn_field) (arg1p, f, j, type, offset); 8798944Sobrien} 8898944Sobrien 8998944Sobrienstruct type * 9098944Sobrienvalue_rtti_type (struct value *v, int *full, int *top, int *using_enc) 9198944Sobrien{ 9298944Sobrien if ((current_cp_abi.rtti_type) == NULL) 9398944Sobrien return NULL; 9498944Sobrien return (*current_cp_abi.rtti_type) (v, full, top, using_enc); 9598944Sobrien} 9698944Sobrien 97130803Smarcel/* Set the current C++ ABI to SHORT_NAME. */ 98130803Smarcel 99130803Smarcelstatic int 100130803Smarcelswitch_to_cp_abi (const char *short_name) 101130803Smarcel{ 102130803Smarcel struct cp_abi_ops *abi; 103130803Smarcel 104130803Smarcel abi = find_cp_abi (short_name); 105130803Smarcel if (abi == NULL) 106130803Smarcel return 0; 107130803Smarcel 108130803Smarcel current_cp_abi = *abi; 109130803Smarcel return 1; 110130803Smarcel} 111130803Smarcel 112130803Smarcel/* Add ABI to the list of supported C++ ABI's. */ 113130803Smarcel 11498944Sobrienint 115130803Smarcelregister_cp_abi (struct cp_abi_ops *abi) 11698944Sobrien{ 117130803Smarcel if (num_cp_abis == CP_ABI_MAX) 118130803Smarcel internal_error (__FILE__, __LINE__, 119130803Smarcel "Too many C++ ABIs, please increase CP_ABI_MAX in cp-abi.c"); 120130803Smarcel 12198944Sobrien cp_abis[num_cp_abis++] = abi; 12298944Sobrien 12398944Sobrien return 1; 124130803Smarcel} 12598944Sobrien 126130803Smarcel/* Set the ABI to use in "auto" mode to SHORT_NAME. */ 127130803Smarcel 128130803Smarcelvoid 129130803Smarcelset_cp_abi_as_auto_default (const char *short_name) 130130803Smarcel{ 131130803Smarcel char *new_longname, *new_doc; 132130803Smarcel struct cp_abi_ops *abi = find_cp_abi (short_name); 133130803Smarcel 134130803Smarcel if (abi == NULL) 135130803Smarcel internal_error (__FILE__, __LINE__, 136130803Smarcel "Cannot find C++ ABI \"%s\" to set it as auto default.", 137130803Smarcel short_name); 138130803Smarcel 139130803Smarcel if (auto_cp_abi.longname != NULL) 140130803Smarcel xfree ((char *) auto_cp_abi.longname); 141130803Smarcel if (auto_cp_abi.doc != NULL) 142130803Smarcel xfree ((char *) auto_cp_abi.doc); 143130803Smarcel 144130803Smarcel auto_cp_abi = *abi; 145130803Smarcel 146130803Smarcel auto_cp_abi.shortname = "auto"; 147130803Smarcel new_longname = xmalloc (strlen ("currently ") + 1 + strlen (abi->shortname) 148130803Smarcel + 1 + 1); 149130803Smarcel sprintf (new_longname, "currently \"%s\"", abi->shortname); 150130803Smarcel auto_cp_abi.longname = new_longname; 151130803Smarcel 152130803Smarcel new_doc = xmalloc (strlen ("Automatically selected; currently ") 153130803Smarcel + 1 + strlen (abi->shortname) + 1 + 1); 154130803Smarcel sprintf (new_doc, "Automatically selected; currently \"%s\"", abi->shortname); 155130803Smarcel auto_cp_abi.doc = new_doc; 156130803Smarcel 157130803Smarcel /* Since we copy the current ABI into current_cp_abi instead of 158130803Smarcel using a pointer, if auto is currently the default, we need to 159130803Smarcel reset it. */ 160130803Smarcel if (strcmp (current_cp_abi.shortname, "auto") == 0) 161130803Smarcel switch_to_cp_abi ("auto"); 16298944Sobrien} 16398944Sobrien 164130803Smarcel/* Return the ABI operations associated with SHORT_NAME. */ 165130803Smarcel 166130803Smarcelstatic struct cp_abi_ops * 167130803Smarcelfind_cp_abi (const char *short_name) 16898944Sobrien{ 16998944Sobrien int i; 170130803Smarcel 17198944Sobrien for (i = 0; i < num_cp_abis; i++) 172130803Smarcel if (strcmp (cp_abis[i]->shortname, short_name) == 0) 173130803Smarcel return cp_abis[i]; 174130803Smarcel 175130803Smarcel return NULL; 17698944Sobrien} 17798944Sobrien 178130803Smarcel/* Display the list of registered C++ ABIs. */ 179130803Smarcel 180130803Smarcelstatic void 181130803Smarcellist_cp_abis (int from_tty) 182130803Smarcel{ 183130803Smarcel struct cleanup *cleanup_chain; 184130803Smarcel int i; 185130803Smarcel ui_out_text (uiout, "The available C++ ABIs are:\n"); 186130803Smarcel 187130803Smarcel cleanup_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "cp-abi-list"); 188130803Smarcel for (i = 0; i < num_cp_abis; i++) 189130803Smarcel { 190130803Smarcel char pad[14]; 191130803Smarcel int padcount; 192130803Smarcel 193130803Smarcel ui_out_text (uiout, " "); 194130803Smarcel ui_out_field_string (uiout, "cp-abi", cp_abis[i]->shortname); 195130803Smarcel 196130803Smarcel padcount = 16 - 2 - strlen (cp_abis[i]->shortname); 197130803Smarcel pad[padcount] = 0; 198130803Smarcel while (padcount > 0) 199130803Smarcel pad[--padcount] = ' '; 200130803Smarcel ui_out_text (uiout, pad); 201130803Smarcel 202130803Smarcel ui_out_field_string (uiout, "doc", cp_abis[i]->doc); 203130803Smarcel ui_out_text (uiout, "\n"); 204130803Smarcel } 205130803Smarcel do_cleanups (cleanup_chain); 206130803Smarcel} 207130803Smarcel 208130803Smarcel/* Set the current C++ ABI, or display the list of options if no 209130803Smarcel argument is given. */ 210130803Smarcel 211130803Smarcelstatic void 212130803Smarcelset_cp_abi_cmd (char *args, int from_tty) 213130803Smarcel{ 214130803Smarcel if (args == NULL) 215130803Smarcel { 216130803Smarcel list_cp_abis (from_tty); 217130803Smarcel return; 218130803Smarcel } 219130803Smarcel 220130803Smarcel if (!switch_to_cp_abi (args)) 221130803Smarcel error ("Could not find \"%s\" in ABI list", args); 222130803Smarcel} 223130803Smarcel 224130803Smarcel/* Show the currently selected C++ ABI. */ 225130803Smarcel 226130803Smarcelstatic void 227130803Smarcelshow_cp_abi_cmd (char *args, int from_tty) 228130803Smarcel{ 229130803Smarcel ui_out_text (uiout, "The currently selected C++ ABI is \""); 230130803Smarcel 231130803Smarcel ui_out_field_string (uiout, "cp-abi", current_cp_abi.shortname); 232130803Smarcel ui_out_text (uiout, "\" ("); 233130803Smarcel ui_out_field_string (uiout, "longname", current_cp_abi.longname); 234130803Smarcel ui_out_text (uiout, ").\n"); 235130803Smarcel} 236130803Smarcel 237130803Smarcelextern initialize_file_ftype _initialize_cp_abi; /* -Wmissing-prototypes */ 238130803Smarcel 239130803Smarcelvoid 240130803Smarcel_initialize_cp_abi (void) 241130803Smarcel{ 242130803Smarcel register_cp_abi (&auto_cp_abi); 243130803Smarcel switch_to_cp_abi ("auto"); 244130803Smarcel 245130803Smarcel add_cmd ("cp-abi", class_obscure, set_cp_abi_cmd, 246130803Smarcel "Set the ABI used for inspecting C++ objects.\n" 247130803Smarcel "\"set cp-abi\" with no arguments will list the available ABIs.", 248130803Smarcel &setlist); 249130803Smarcel 250130803Smarcel add_cmd ("cp-abi", class_obscure, show_cp_abi_cmd, 251130803Smarcel "Show the ABI used for inspecting C++ objects.", &showlist); 252130803Smarcel} 253