dlls/msvcrt/cpp.c

   1 /*
   2  * msvcrt.dll C++ objects
   3  *
   4  * Copyright 2000 Jon Griffiths
   5  * Copyright 2003, 2004 Alexandre Julliard
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library 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 GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  20  */
  21
  22 #include "config.h"
  23 #include "wine/port.h"
  24
  25 #include <stdarg.h>
  26
  27 #include "windef.h"
  28 #include "winternl.h"
  29 #include "wine/exception.h"
  30 #include "wine/debug.h"
  31 #include "msvcrt.h"
  32 #include "cppexcept.h"
  33 #include "mtdll.h"
  34 #include "cxx.h"
  35
  36 WINE_DEFAULT_DEBUG_CHANNEL(msvcrt);
  37
  38 struct __type_info_node
  39 {
  40     void *memPtr;
  41     struct __type_info_node* next;
  42 };
  43
  44 typedef exception bad_cast;
  45 typedef exception bad_typeid;
  46 typedef exception __non_rtti_object;
  47
  48 extern const vtable_ptr MSVCRT_exception_vtable;
  49 extern const vtable_ptr MSVCRT_bad_typeid_vtable;
  50 extern const vtable_ptr MSVCRT_bad_cast_vtable;
  51 extern const vtable_ptr MSVCRT___non_rtti_object_vtable;
  52 extern const vtable_ptr MSVCRT_type_info_vtable;
  53
  54 /* get the vtable pointer for a C++ object */
  55 static inline const vtable_ptr *get_vtable( void *obj )
  56 {
  57     return *(const vtable_ptr **)obj;
  58 }
  59
  60 static inline const rtti_object_locator *get_obj_locator( void *cppobj )
  61 {
  62     const vtable_ptr *vtable = get_vtable( cppobj );
  63     return (const rtti_object_locator *)vtable[-1];
  64 }
  65
  66 #ifndef __x86_64__
  67 static void dump_obj_locator( const rtti_object_locator *ptr )
  68 {
  69     int i;
  70     const rtti_object_hierarchy *h = ptr->type_hierarchy;
  71
  72     TRACE( "%p: sig=%08x base_offset=%08x flags=%08x type=%p %s hierarchy=%p\n",
  73            ptr, ptr->signature, ptr->base_class_offset, ptr->flags,
  74            ptr->type_descriptor, dbgstr_type_info(ptr->type_descriptor), ptr->type_hierarchy );
  75     TRACE( "  hierarchy: sig=%08x attr=%08x len=%d base classes=%p\n",
  76            h->signature, h->attributes, h->array_len, h->base_classes );
  77     for (i = 0; i < h->array_len; i++)
  78     {
  79         TRACE( "    base class %p: num %d off %d,%d,%d attr %08x type %p %s\n",
  80                h->base_classes->bases[i],
  81                h->base_classes->bases[i]->num_base_classes,
  82                h->base_classes->bases[i]->offsets.this_offset,
  83                h->base_classes->bases[i]->offsets.vbase_descr,
  84                h->base_classes->bases[i]->offsets.vbase_offset,
  85                h->base_classes->bases[i]->attributes,
  86                h->base_classes->bases[i]->type_descriptor,
  87                dbgstr_type_info(h->base_classes->bases[i]->type_descriptor) );
  88     }
  89 }
  90
  91 #else
  92
  93 static void dump_obj_locator( const rtti_object_locator *ptr )
  94 {
  95     int i;
  96     char *base = ptr->signature == 0 ? RtlPcToFileHeader((void*)ptr, (void**)&base) : (char*)ptr - ptr->object_locator;
  97     const rtti_object_hierarchy *h = (const rtti_object_hierarchy*)(base + ptr->type_hierarchy);
  98     const type_info *type_descriptor = (const type_info*)(base + ptr->type_descriptor);
  99
 100     TRACE( "%p: sig=%08x base_offset=%08x flags=%08x type=%p %s hierarchy=%p\n",
 101             ptr, ptr->signature, ptr->base_class_offset, ptr->flags,
 102             type_descriptor, dbgstr_type_info(type_descriptor), h );
 103     TRACE( "  hierarchy: sig=%08x attr=%08x len=%d base classes=%p\n",
 104             h->signature, h->attributes, h->array_len, base + h->base_classes );
 105     for (i = 0; i < h->array_len; i++)
 106     {
 107         const rtti_base_descriptor *bases = (rtti_base_descriptor*)(base +
 108                 ((const rtti_base_array*)(base + h->base_classes))->bases[i]);
 109
 110         TRACE( "    base class %p: num %d off %d,%d,%d attr %08x type %p %s\n",
 111                 bases,
 112                 bases->num_base_classes,
 113                 bases->offsets.this_offset,
 114                 bases->offsets.vbase_descr,
 115                 bases->offsets.vbase_offset,
 116                 bases->attributes,
 117                 base + bases->type_descriptor,
 118                 dbgstr_type_info((const type_info*)(base + bases->type_descriptor)) );
 119     }
 120 }
 121 #endif
 122
 123 /* Internal common ctor for exception */
 124 static void EXCEPTION_ctor(exception *_this, const char** name)
 125 {
 126   _this->vtable = &MSVCRT_exception_vtable;
 127   if (*name)
 128   {
 129     unsigned int name_len = strlen(*name) + 1;
 130     _this->name = MSVCRT_malloc(name_len);
 131     memcpy(_this->name, *name, name_len);
 132     _this->do_free = TRUE;
 133   }
 134   else
 135   {
 136     _this->name = NULL;
 137     _this->do_free = FALSE;
 138   }
 139 }
 140
 141 /******************************************************************
 142  *              ??0exception@@QAE@ABQBD@Z (MSVCRT.@)
 143  */
 144 DEFINE_THISCALL_WRAPPER(MSVCRT_exception_ctor,8)
 145 exception * __thiscall MSVCRT_exception_ctor(exception * _this, const char ** name)
 146 {
 147   TRACE("(%p,%s)\n", _this, *name);
 148   EXCEPTION_ctor(_this, name);
 149   return _this;
 150 }
 151
 152 /******************************************************************
 153  *              ??0exception@@QAE@ABQBDH@Z (MSVCRT.@)
 154  */
 155 DEFINE_THISCALL_WRAPPER(MSVCRT_exception_ctor_noalloc,12)
 156 exception * __thiscall MSVCRT_exception_ctor_noalloc(exception * _this, char ** name, int noalloc)
 157 {
 158   TRACE("(%p,%s)\n", _this, *name);
 159   _this->vtable = &MSVCRT_exception_vtable;
 160   _this->name = *name;
 161   _this->do_free = FALSE;
 162   return _this;
 163 }
 164
 165 /******************************************************************
 166  *              ??0exception@@QAE@ABV0@@Z (MSVCRT.@)
 167  */
 168 DEFINE_THISCALL_WRAPPER(MSVCRT_exception_copy_ctor,8)
 169 exception * __thiscall MSVCRT_exception_copy_ctor(exception * _this, const exception * rhs)
 170 {
 171   TRACE("(%p,%p)\n", _this, rhs);
 172
 173   if (!rhs->do_free)
 174   {
 175     _this->vtable = &MSVCRT_exception_vtable;
 176     _this->name = rhs->name;
 177     _this->do_free = FALSE;
 178   }
 179   else
 180     EXCEPTION_ctor(_this, (const char**)&rhs->name);
 181   TRACE("name = %s\n", _this->name);
 182   return _this;
 183 }
 184
 185 /******************************************************************
 186  *              ??0exception@@QAE@XZ (MSVCRT.@)
 187  */
 188 DEFINE_THISCALL_WRAPPER(MSVCRT_exception_default_ctor,4)
 189 exception * __thiscall MSVCRT_exception_default_ctor(exception * _this)
 190 {
 191   static const char* empty = NULL;
 192
 193   TRACE("(%p)\n", _this);
 194   EXCEPTION_ctor(_this, &empty);
 195   return _this;
 196 }
 197
 198 /******************************************************************
 199  *              ??1exception@@UAE@XZ (MSVCRT.@)
 200  */
 201 DEFINE_THISCALL_WRAPPER(MSVCRT_exception_dtor,4)
 202 void __thiscall MSVCRT_exception_dtor(exception * _this)
 203 {
 204   TRACE("(%p)\n", _this);
 205   _this->vtable = &MSVCRT_exception_vtable;
 206   if (_this->do_free) MSVCRT_free(_this->name);
 207 }
 208
 209 /******************************************************************
 210  *              ??4exception@@QAEAAV0@ABV0@@Z (MSVCRT.@)
 211  */
 212 DEFINE_THISCALL_WRAPPER(MSVCRT_exception_opequals,8)
 213 exception * __thiscall MSVCRT_exception_opequals(exception * _this, const exception * rhs)
 214 {
 215   TRACE("(%p %p)\n", _this, rhs);
 216   if (_this != rhs)
 217   {
 218       MSVCRT_exception_dtor(_this);
 219       MSVCRT_exception_copy_ctor(_this, rhs);
 220   }
 221   TRACE("name = %s\n", _this->name);
 222   return _this;
 223 }
 224
 225 /******************************************************************
 226  *              ??_Eexception@@UAEPAXI@Z (MSVCRT.@)
 227  */
 228 DEFINE_THISCALL_WRAPPER(MSVCRT_exception_vector_dtor,8)
 229 void * __thiscall MSVCRT_exception_vector_dtor(exception * _this, unsigned int flags)
 230 {
 231     TRACE("(%p %x)\n", _this, flags);
 232     if (flags & 2)
 233     {
 234         /* we have an array, with the number of elements stored before the first object */
 235         INT_PTR i, *ptr = (INT_PTR *)_this - 1;
 236
 237         for (i = *ptr - 1; i >= 0; i--) MSVCRT_exception_dtor(_this + i);
 238         MSVCRT_operator_delete(ptr);
 239     }
 240     else
 241     {
 242         MSVCRT_exception_dtor(_this);
 243         if (flags & 1) MSVCRT_operator_delete(_this);
 244     }
 245     return _this;
 246 }
 247
 248 /******************************************************************
 249  *              ??_Gexception@@UAEPAXI@Z (MSVCRT.@)
 250  */
 251 DEFINE_THISCALL_WRAPPER(MSVCRT_exception_scalar_dtor,8)
 252 void * __thiscall MSVCRT_exception_scalar_dtor(exception * _this, unsigned int flags)
 253 {
 254     TRACE("(%p %x)\n", _this, flags);
 255     MSVCRT_exception_dtor(_this);
 256     if (flags & 1) MSVCRT_operator_delete(_this);
 257     return _this;
 258 }
 259
 260 /******************************************************************
 261  *              ?what@exception@@UBEPBDXZ (MSVCRT.@)
 262  */
 263 DEFINE_THISCALL_WRAPPER(MSVCRT_what_exception,4)
 264 const char * __thiscall MSVCRT_what_exception(exception * _this)
 265 {
 266   TRACE("(%p) returning %s\n", _this, _this->name);
 267   return _this->name ? _this->name : "Unknown exception";
 268 }
 269
 270 /******************************************************************
 271  *              ??0bad_typeid@@QAE@ABV0@@Z (MSVCRT.@)
 272  */
 273 DEFINE_THISCALL_WRAPPER(MSVCRT_bad_typeid_copy_ctor,8)
 274 bad_typeid * __thiscall MSVCRT_bad_typeid_copy_ctor(bad_typeid * _this, const bad_typeid * rhs)
 275 {
 276   TRACE("(%p %p)\n", _this, rhs);
 277   MSVCRT_exception_copy_ctor(_this, rhs);
 278   _this->vtable = &MSVCRT_bad_typeid_vtable;
 279   return _this;
 280 }
 281
 282 /******************************************************************
 283  *              ??0bad_typeid@@QAE@PBD@Z (MSVCRT.@)
 284  */
 285 DEFINE_THISCALL_WRAPPER(MSVCRT_bad_typeid_ctor,8)
 286 bad_typeid * __thiscall MSVCRT_bad_typeid_ctor(bad_typeid * _this, const char * name)
 287 {
 288   TRACE("(%p %s)\n", _this, name);
 289   EXCEPTION_ctor(_this, &name);
 290   _this->vtable = &MSVCRT_bad_typeid_vtable;
 291   return _this;
 292 }
 293
 294 /******************************************************************
 295  *              ??_Fbad_typeid@@QAEXXZ (MSVCRT.@)
 296  */
 297 DEFINE_THISCALL_WRAPPER(MSVCRT_bad_typeid_default_ctor,4)
 298 bad_typeid * __thiscall MSVCRT_bad_typeid_default_ctor(bad_typeid * _this)
 299 {
 300   return MSVCRT_bad_typeid_ctor( _this, "bad typeid" );
 301 }
 302
 303 /******************************************************************
 304  *              ??1bad_typeid@@UAE@XZ (MSVCRT.@)
 305  */
 306 DEFINE_THISCALL_WRAPPER(MSVCRT_bad_typeid_dtor,4)
 307 void __thiscall MSVCRT_bad_typeid_dtor(bad_typeid * _this)
 308 {
 309   TRACE("(%p)\n", _this);
 310   MSVCRT_exception_dtor(_this);
 311 }
 312
 313 /******************************************************************
 314  *              ??4bad_typeid@@QAEAAV0@ABV0@@Z (MSVCRT.@)
 315  */
 316 DEFINE_THISCALL_WRAPPER(MSVCRT_bad_typeid_opequals,8)
 317 bad_typeid * __thiscall MSVCRT_bad_typeid_opequals(bad_typeid * _this, const bad_typeid * rhs)
 318 {
 319   TRACE("(%p %p)\n", _this, rhs);
 320   MSVCRT_exception_opequals(_this, rhs);
 321   return _this;
 322 }
 323
 324 /******************************************************************
 325  *              ??_Ebad_typeid@@UAEPAXI@Z (MSVCRT.@)
 326  */
 327 DEFINE_THISCALL_WRAPPER(MSVCRT_bad_typeid_vector_dtor,8)
 328 void * __thiscall MSVCRT_bad_typeid_vector_dtor(bad_typeid * _this, unsigned int flags)
 329 {
 330     TRACE("(%p %x)\n", _this, flags);
 331     if (flags & 2)
 332     {
 333         /* we have an array, with the number of elements stored before the first object */
 334         INT_PTR i, *ptr = (INT_PTR *)_this - 1;
 335
 336         for (i = *ptr - 1; i >= 0; i--) MSVCRT_bad_typeid_dtor(_this + i);
 337         MSVCRT_operator_delete(ptr);
 338     }
 339     else
 340     {
 341         MSVCRT_bad_typeid_dtor(_this);
 342         if (flags & 1) MSVCRT_operator_delete(_this);
 343     }
 344     return _this;
 345 }
 346
 347 /******************************************************************
 348  *              ??_Gbad_typeid@@UAEPAXI@Z (MSVCRT.@)
 349  */
 350 DEFINE_THISCALL_WRAPPER(MSVCRT_bad_typeid_scalar_dtor,8)
 351 void * __thiscall MSVCRT_bad_typeid_scalar_dtor(bad_typeid * _this, unsigned int flags)
 352 {
 353     TRACE("(%p %x)\n", _this, flags);
 354     MSVCRT_bad_typeid_dtor(_this);
 355     if (flags & 1) MSVCRT_operator_delete(_this);
 356     return _this;
 357 }
 358
 359 /******************************************************************
 360  *              ??0__non_rtti_object@@QAE@ABV0@@Z (MSVCRT.@)
 361  */
 362 DEFINE_THISCALL_WRAPPER(MSVCRT___non_rtti_object_copy_ctor,8)
 363 __non_rtti_object * __thiscall MSVCRT___non_rtti_object_copy_ctor(__non_rtti_object * _this,
 364                                                                  const __non_rtti_object * rhs)
 365 {
 366   TRACE("(%p %p)\n", _this, rhs);
 367   MSVCRT_bad_typeid_copy_ctor(_this, rhs);
 368   _this->vtable = &MSVCRT___non_rtti_object_vtable;
 369   return _this;
 370 }
 371
 372 /******************************************************************
 373  *              ??0__non_rtti_object@@QAE@PBD@Z (MSVCRT.@)
 374  */
 375 DEFINE_THISCALL_WRAPPER(MSVCRT___non_rtti_object_ctor,8)
 376 __non_rtti_object * __thiscall MSVCRT___non_rtti_object_ctor(__non_rtti_object * _this,
 377                                                             const char * name)
 378 {
 379   TRACE("(%p %s)\n", _this, name);
 380   EXCEPTION_ctor(_this, &name);
 381   _this->vtable = &MSVCRT___non_rtti_object_vtable;
 382   return _this;
 383 }
 384
 385 /******************************************************************
 386  *              ??1__non_rtti_object@@UAE@XZ (MSVCRT.@)
 387  */
 388 DEFINE_THISCALL_WRAPPER(MSVCRT___non_rtti_object_dtor,4)
 389 void __thiscall MSVCRT___non_rtti_object_dtor(__non_rtti_object * _this)
 390 {
 391   TRACE("(%p)\n", _this);
 392   MSVCRT_bad_typeid_dtor(_this);
 393 }
 394
 395 /******************************************************************
 396  *              ??4__non_rtti_object@@QAEAAV0@ABV0@@Z (MSVCRT.@)
 397  */
 398 DEFINE_THISCALL_WRAPPER(MSVCRT___non_rtti_object_opequals,8)
 399 __non_rtti_object * __thiscall MSVCRT___non_rtti_object_opequals(__non_rtti_object * _this,
 400                                                                 const __non_rtti_object *rhs)
 401 {
 402   TRACE("(%p %p)\n", _this, rhs);
 403   MSVCRT_bad_typeid_opequals(_this, rhs);
 404   return _this;
 405 }
 406
 407 /******************************************************************
 408  *              ??_E__non_rtti_object@@UAEPAXI@Z (MSVCRT.@)
 409  */
 410 DEFINE_THISCALL_WRAPPER(MSVCRT___non_rtti_object_vector_dtor,8)
 411 void * __thiscall MSVCRT___non_rtti_object_vector_dtor(__non_rtti_object * _this, unsigned int flags)
 412 {
 413     TRACE("(%p %x)\n", _this, flags);
 414     if (flags & 2)
 415     {
 416         /* we have an array, with the number of elements stored before the first object */
 417         INT_PTR i, *ptr = (INT_PTR *)_this - 1;
 418
 419         for (i = *ptr - 1; i >= 0; i--) MSVCRT___non_rtti_object_dtor(_this + i);
 420         MSVCRT_operator_delete(ptr);
 421     }
 422     else
 423     {
 424         MSVCRT___non_rtti_object_dtor(_this);
 425         if (flags & 1) MSVCRT_operator_delete(_this);
 426     }
 427     return _this;
 428 }
 429
 430 /******************************************************************
 431  *              ??_G__non_rtti_object@@UAEPAXI@Z (MSVCRT.@)
 432  */
 433 DEFINE_THISCALL_WRAPPER(MSVCRT___non_rtti_object_scalar_dtor,8)
 434 void * __thiscall MSVCRT___non_rtti_object_scalar_dtor(__non_rtti_object * _this, unsigned int flags)
 435 {
 436   TRACE("(%p %x)\n", _this, flags);
 437   MSVCRT___non_rtti_object_dtor(_this);
 438   if (flags & 1) MSVCRT_operator_delete(_this);
 439   return _this;
 440 }
 441
 442 /******************************************************************
 443  *              ??0bad_cast@@AAE@PBQBD@Z (MSVCRT.@)
 444  *              ??0bad_cast@@QAE@ABQBD@Z (MSVCRT.@)
 445  */
 446 DEFINE_THISCALL_WRAPPER(MSVCRT_bad_cast_ctor,8)
 447 bad_cast * __thiscall MSVCRT_bad_cast_ctor(bad_cast * _this, const char ** name)
 448 {
 449   TRACE("(%p %s)\n", _this, *name);
 450   EXCEPTION_ctor(_this, name);
 451   _this->vtable = &MSVCRT_bad_cast_vtable;
 452   return _this;
 453 }
 454
 455 /******************************************************************
 456  *              ??0bad_cast@@QAE@ABV0@@Z (MSVCRT.@)
 457  */
 458 DEFINE_THISCALL_WRAPPER(MSVCRT_bad_cast_copy_ctor,8)
 459 bad_cast * __thiscall MSVCRT_bad_cast_copy_ctor(bad_cast * _this, const bad_cast * rhs)
 460 {
 461   TRACE("(%p %p)\n", _this, rhs);
 462   MSVCRT_exception_copy_ctor(_this, rhs);
 463   _this->vtable = &MSVCRT_bad_cast_vtable;
 464   return _this;
 465 }
 466
 467 /******************************************************************
 468  *              ??0bad_cast@@QAE@PBD@Z (MSVCRT.@)
 469  */
 470 DEFINE_THISCALL_WRAPPER(MSVCRT_bad_cast_ctor_charptr,8)
 471 bad_cast * __thiscall MSVCRT_bad_cast_ctor_charptr(bad_cast * _this, const char * name)
 472 {
 473   TRACE("(%p %s)\n", _this, name);
 474   EXCEPTION_ctor(_this, &name);
 475   _this->vtable = &MSVCRT_bad_cast_vtable;
 476   return _this;
 477 }
 478
 479 /******************************************************************
 480  *              ??_Fbad_cast@@QAEXXZ (MSVCRT.@)
 481  */
 482 DEFINE_THISCALL_WRAPPER(MSVCRT_bad_cast_default_ctor,4)
 483 bad_cast * __thiscall MSVCRT_bad_cast_default_ctor(bad_cast * _this)
 484 {
 485   return MSVCRT_bad_cast_ctor_charptr( _this, "bad cast" );
 486 }
 487
 488 /******************************************************************
 489  *              ??1bad_cast@@UAE@XZ (MSVCRT.@)
 490  */
 491 DEFINE_THISCALL_WRAPPER(MSVCRT_bad_cast_dtor,4)
 492 void __thiscall MSVCRT_bad_cast_dtor(bad_cast * _this)
 493 {
 494   TRACE("(%p)\n", _this);
 495   MSVCRT_exception_dtor(_this);
 496 }
 497
 498 /******************************************************************
 499  *              ??4bad_cast@@QAEAAV0@ABV0@@Z (MSVCRT.@)
 500  */
 501 DEFINE_THISCALL_WRAPPER(MSVCRT_bad_cast_opequals,8)
 502 bad_cast * __thiscall MSVCRT_bad_cast_opequals(bad_cast * _this, const bad_cast * rhs)
 503 {
 504   TRACE("(%p %p)\n", _this, rhs);
 505   MSVCRT_exception_opequals(_this, rhs);
 506   return _this;
 507 }
 508
 509 /******************************************************************
 510  *              ??_Ebad_cast@@UAEPAXI@Z (MSVCRT.@)
 511  */
 512 DEFINE_THISCALL_WRAPPER(MSVCRT_bad_cast_vector_dtor,8)
 513 void * __thiscall MSVCRT_bad_cast_vector_dtor(bad_cast * _this, unsigned int flags)
 514 {
 515     TRACE("(%p %x)\n", _this, flags);
 516     if (flags & 2)
 517     {
 518         /* we have an array, with the number of elements stored before the first object */
 519         INT_PTR i, *ptr = (INT_PTR *)_this - 1;
 520
 521         for (i = *ptr - 1; i >= 0; i--) MSVCRT_bad_cast_dtor(_this + i);
 522         MSVCRT_operator_delete(ptr);
 523     }
 524     else
 525     {
 526         MSVCRT_bad_cast_dtor(_this);
 527         if (flags & 1) MSVCRT_operator_delete(_this);
 528     }
 529     return _this;
 530 }
 531
 532 /******************************************************************
 533  *              ??_Gbad_cast@@UAEPAXI@Z (MSVCRT.@)
 534  */
 535 DEFINE_THISCALL_WRAPPER(MSVCRT_bad_cast_scalar_dtor,8)
 536 void * __thiscall MSVCRT_bad_cast_scalar_dtor(bad_cast * _this, unsigned int flags)
 537 {
 538   TRACE("(%p %x)\n", _this, flags);
 539   MSVCRT_bad_cast_dtor(_this);
 540   if (flags & 1) MSVCRT_operator_delete(_this);
 541   return _this;
 542 }
 543
 544 /******************************************************************
 545  *              ??8type_info@@QBEHABV0@@Z (MSVCRT.@)
 546  */
 547 DEFINE_THISCALL_WRAPPER(MSVCRT_type_info_opequals_equals,8)
 548 int __thiscall MSVCRT_type_info_opequals_equals(type_info * _this, const type_info * rhs)
 549 {
 550     int ret = !strcmp(_this->mangled + 1, rhs->mangled + 1);
 551     TRACE("(%p %p) returning %d\n", _this, rhs, ret);
 552     return ret;
 553 }
 554
 555 /******************************************************************
 556  *              ??9type_info@@QBEHABV0@@Z (MSVCRT.@)
 557  */
 558 DEFINE_THISCALL_WRAPPER(MSVCRT_type_info_opnot_equals,8)
 559 int __thiscall MSVCRT_type_info_opnot_equals(type_info * _this, const type_info * rhs)
 560 {
 561     int ret = !!strcmp(_this->mangled + 1, rhs->mangled + 1);
 562     TRACE("(%p %p) returning %d\n", _this, rhs, ret);
 563     return ret;
 564 }
 565
 566 /******************************************************************
 567  *              ?before@type_info@@QBEHABV1@@Z (MSVCRT.@)
 568  */
 569 DEFINE_THISCALL_WRAPPER(MSVCRT_type_info_before,8)
 570 int __thiscall MSVCRT_type_info_before(type_info * _this, const type_info * rhs)
 571 {
 572     int ret = strcmp(_this->mangled + 1, rhs->mangled + 1) < 0;
 573     TRACE("(%p %p) returning %d\n", _this, rhs, ret);
 574     return ret;
 575 }
 576
 577 /******************************************************************
 578  *              ??1type_info@@UAE@XZ (MSVCRT.@)
 579  */
 580 DEFINE_THISCALL_WRAPPER(MSVCRT_type_info_dtor,4)
 581 void __thiscall MSVCRT_type_info_dtor(type_info * _this)
 582 {
 583   TRACE("(%p)\n", _this);
 584   MSVCRT_free(_this->name);
 585 }
 586
 587 /******************************************************************
 588  *              ?name@type_info@@QBEPBDXZ (MSVCRT.@)
 589  */
 590 DEFINE_THISCALL_WRAPPER(MSVCRT_type_info_name,4)
 591 const char * __thiscall MSVCRT_type_info_name(type_info * _this)
 592 {
 593   if (!_this->name)
 594   {
 595     /* Create and set the demangled name */
 596     /* Note: mangled name in type_info struct always starts with a '.', while
 597      * it isn't valid for mangled name.
 598      * Is this '.' really part of the mangled name, or has it some other meaning ?
 599      */
 600     char* name = __unDName(0, _this->mangled + 1, 0,
 601                            MSVCRT_malloc, MSVCRT_free, UNDNAME_NO_ARGUMENTS | UNDNAME_32_BIT_DECODE);
 602     if (name)
 603     {
 604       unsigned int len = strlen(name);
 605
 606       /* It seems _unDName may leave blanks at the end of the demangled name */
 607       while (len && name[--len] == ' ')
 608         name[len] = '\0';
 609
 610       if (InterlockedCompareExchangePointer((void**)&_this->name, name, NULL))
 611       {
 612         /* Another thread set this member since we checked above - use it */
 613         MSVCRT_free(name);
 614       }
 615     }
 616   }
 617   TRACE("(%p) returning %s\n", _this, _this->name);
 618   return _this->name;
 619 }
 620
 621 /******************************************************************
 622  *              ?raw_name@type_info@@QBEPBDXZ (MSVCRT.@)
 623  */
 624 DEFINE_THISCALL_WRAPPER(MSVCRT_type_info_raw_name,4)
 625 const char * __thiscall MSVCRT_type_info_raw_name(type_info * _this)
 626 {
 627   TRACE("(%p) returning %s\n", _this, _this->mangled);
 628   return _this->mangled;
 629 }
 630
 631 /* Unexported */
 632 DEFINE_THISCALL_WRAPPER(MSVCRT_type_info_vector_dtor,8)
 633 void * __thiscall MSVCRT_type_info_vector_dtor(type_info * _this, unsigned int flags)
 634 {
 635     TRACE("(%p %x)\n", _this, flags);
 636     if (flags & 2)
 637     {
 638         /* we have an array, with the number of elements stored before the first object */
 639         INT_PTR i, *ptr = (INT_PTR *)_this - 1;
 640
 641         for (i = *ptr - 1; i >= 0; i--) MSVCRT_type_info_dtor(_this + i);
 642         MSVCRT_operator_delete(ptr);
 643     }
 644     else
 645     {
 646         MSVCRT_type_info_dtor(_this);
 647         if (flags & 1) MSVCRT_operator_delete(_this);
 648     }
 649     return _this;
 650 }
 651
 652 #ifndef __GNUC__
 653 void __asm_dummy_vtables(void) {
 654 #endif
 655
 656 __ASM_VTABLE(type_info,
 657         VTABLE_ADD_FUNC(MSVCRT_type_info_vector_dtor));
 658 __ASM_VTABLE(exception,
 659         VTABLE_ADD_FUNC(MSVCRT_exception_vector_dtor)
 660         VTABLE_ADD_FUNC(MSVCRT_what_exception));
 661 #if _MSVCR_VER >= 80
 662 __ASM_VTABLE(exception_old,
 663         VTABLE_ADD_FUNC(MSVCRT_exception_vector_dtor)
 664         VTABLE_ADD_FUNC(MSVCRT_what_exception));
 665 #endif
 666 __ASM_VTABLE(bad_typeid,
 667         VTABLE_ADD_FUNC(MSVCRT_bad_typeid_vector_dtor)
 668         VTABLE_ADD_FUNC(MSVCRT_what_exception));
 669 __ASM_VTABLE(bad_cast,
 670         VTABLE_ADD_FUNC(MSVCRT_bad_cast_vector_dtor)
 671         VTABLE_ADD_FUNC(MSVCRT_what_exception));
 672 __ASM_VTABLE(__non_rtti_object,
 673         VTABLE_ADD_FUNC(MSVCRT___non_rtti_object_vector_dtor)
 674         VTABLE_ADD_FUNC(MSVCRT_what_exception));
 675
 676 #ifndef __GNUC__
 677 }
 678 #endif
 679
 680 DEFINE_RTTI_DATA0( type_info, 0, ".?AVtype_info@@" )
 681 #if _MSVCR_VER >= 80
 682 DEFINE_RTTI_DATA0( exception, 0, ".?AVexception@std@@" )
 683 DEFINE_RTTI_DATA0( exception_old, 0, ".?AVexception@@" )
 684 DEFINE_RTTI_DATA1( bad_typeid, 0, &exception_rtti_base_descriptor, ".?AVbad_typeid@std@@" )
 685 DEFINE_RTTI_DATA1( bad_cast, 0, &exception_rtti_base_descriptor, ".?AVbad_cast@std@@" )
 686 DEFINE_RTTI_DATA2( __non_rtti_object, 0, &bad_typeid_rtti_base_descriptor, &exception_rtti_base_descriptor, ".?AV__non_rtti_object@std@@" )
 687 #else
 688 DEFINE_RTTI_DATA0( exception, 0, ".?AVexception@@" )
 689 DEFINE_RTTI_DATA1( bad_typeid, 0, &exception_rtti_base_descriptor, ".?AVbad_typeid@@" )
 690 DEFINE_RTTI_DATA1( bad_cast, 0, &exception_rtti_base_descriptor, ".?AVbad_cast@@" )
 691 DEFINE_RTTI_DATA2( __non_rtti_object, 0, &bad_typeid_rtti_base_descriptor, &exception_rtti_base_descriptor, ".?AV__non_rtti_object@@" )
 692 #endif
 693
 694 DEFINE_EXCEPTION_TYPE_INFO( exception, 0, NULL, NULL )
 695 DEFINE_EXCEPTION_TYPE_INFO( bad_typeid, 1, &exception_cxx_type_info, NULL )
 696 DEFINE_EXCEPTION_TYPE_INFO( bad_cast, 1, &exception_cxx_type_info, NULL )
 697 DEFINE_EXCEPTION_TYPE_INFO( __non_rtti_object, 2, &bad_typeid_cxx_type_info, &exception_cxx_type_info )
 698
 699 #if _MSVCR_VER >= 80
 700 typedef exception bad_alloc;
 701 extern const vtable_ptr MSVCRT_bad_alloc_vtable;
 702
 703 static void bad_alloc_ctor(bad_alloc *this, const char **name)
 704 {
 705     MSVCRT_exception_ctor(this, name);
 706     this->vtable = &MSVCRT_bad_alloc_vtable;
 707 }
 708
 709 /* bad_alloc class implementation */
 710 DEFINE_THISCALL_WRAPPER(MSVCRT_bad_alloc_copy_ctor,8)
 711 bad_alloc * __thiscall MSVCRT_bad_alloc_copy_ctor(bad_alloc * _this, const bad_alloc * rhs)
 712 {
 713     TRACE("(%p %p)\n", _this, rhs);
 714     MSVCRT_exception_copy_ctor(_this, rhs);
 715     _this->vtable = &MSVCRT_bad_alloc_vtable;
 716     return _this;
 717 }
 718
 719 DEFINE_THISCALL_WRAPPER(MSVCRT_bad_alloc_dtor,4)
 720 void __thiscall MSVCRT_bad_alloc_dtor(bad_alloc * _this)
 721 {
 722     TRACE("(%p)\n", _this);
 723     MSVCRT_exception_dtor(_this);
 724 }
 725
 726 __ASM_VTABLE(bad_alloc,
 727         VTABLE_ADD_FUNC(MSVCRT_exception_vector_dtor)
 728         VTABLE_ADD_FUNC(MSVCRT_what_exception));
 729 DEFINE_RTTI_DATA1( bad_alloc, 0, &exception_rtti_base_descriptor, ".?AVbad_alloc@std@@" )
 730 DEFINE_EXCEPTION_TYPE_INFO( bad_alloc, 1, &exception_cxx_type_info, NULL )
 731
 732 void throw_bad_alloc(const char *str)
 733 {
 734     bad_alloc e;
 735     bad_alloc_ctor(&e, &str);
 736     _CxxThrowException(&e, &bad_alloc_exception_type);
 737 }
 738 #endif
 739
 740 void msvcrt_init_exception(void *base)
 741 {
 742 #ifdef __x86_64__
 743     init_type_info_rtti(base);
 744     init_exception_rtti(base);
 745 #if _MSVCR_VER >= 80
 746     init_exception_old_rtti(base);
 747     init_bad_alloc_rtti(base);
 748 #endif
 749     init_bad_typeid_rtti(base);
 750     init_bad_cast_rtti(base);
 751     init___non_rtti_object_rtti(base);
 752
 753     init_exception_cxx(base);
 754     init_bad_typeid_cxx(base);
 755     init_bad_cast_cxx(base);
 756     init___non_rtti_object_cxx(base);
 757 #if _MSVCR_VER >= 80
 758     init_bad_alloc_cxx(base);
 759 #endif
 760 #endif
 761 }
 762
 763
 764 /******************************************************************
 765  *              ?set_terminate@@YAP6AXXZP6AXXZ@Z (MSVCRT.@)
 766  *
 767  * Install a handler to be called when terminate() is called.
 768  *
 769  * PARAMS
 770  *  func [I] Handler function to install
 771  *
 772  * RETURNS
 773  *  The previously installed handler function, if any.
 774  */
 775 MSVCRT_terminate_function CDECL MSVCRT_set_terminate(MSVCRT_terminate_function func)
 776 {
 777     thread_data_t *data = msvcrt_get_thread_data();
 778     MSVCRT_terminate_function previous = data->terminate_handler;
 779     TRACE("(%p) returning %p\n",func,previous);
 780     data->terminate_handler = func;
 781     return previous;
 782 }
 783
 784 /******************************************************************
 785  *              _get_terminate (MSVCRT.@)
 786  */
 787 MSVCRT_terminate_function CDECL MSVCRT__get_terminate(void)
 788 {
 789     thread_data_t *data = msvcrt_get_thread_data();
 790     TRACE("returning %p\n", data->terminate_handler);
 791     return data->terminate_handler;
 792 }
 793
 794 /******************************************************************
 795  *              ?set_unexpected@@YAP6AXXZP6AXXZ@Z (MSVCRT.@)
 796  *
 797  * Install a handler to be called when unexpected() is called.
 798  *
 799  * PARAMS
 800  *  func [I] Handler function to install
 801  *
 802  * RETURNS
 803  *  The previously installed handler function, if any.
 804  */
 805 MSVCRT_unexpected_function CDECL MSVCRT_set_unexpected(MSVCRT_unexpected_function func)
 806 {
 807     thread_data_t *data = msvcrt_get_thread_data();
 808     MSVCRT_unexpected_function previous = data->unexpected_handler;
 809     TRACE("(%p) returning %p\n",func,previous);
 810     data->unexpected_handler = func;
 811     return previous;
 812 }
 813
 814 /******************************************************************
 815  *              _get_unexpected (MSVCRT.@)
 816  */
 817 MSVCRT_unexpected_function CDECL MSVCRT__get_unexpected(void)
 818 {
 819     thread_data_t *data = msvcrt_get_thread_data();
 820     TRACE("returning %p\n", data->unexpected_handler);
 821     return data->unexpected_handler;
 822 }
 823
 824 /******************************************************************
 825  *              ?_set_se_translator@@YAP6AXIPAU_EXCEPTION_POINTERS@@@ZP6AXI0@Z@Z  (MSVCRT.@)
 826  */
 827 MSVCRT__se_translator_function CDECL MSVCRT__set_se_translator(MSVCRT__se_translator_function func)
 828 {
 829     thread_data_t *data = msvcrt_get_thread_data();
 830     MSVCRT__se_translator_function previous = data->se_translator;
 831     TRACE("(%p) returning %p\n",func,previous);
 832     data->se_translator = func;
 833     return previous;
 834 }
 835
 836 /******************************************************************
 837  *              ?terminate@@YAXXZ (MSVCRT.@)
 838  *
 839  * Default handler for an unhandled exception.
 840  *
 841  * PARAMS
 842  *  None.
 843  *
 844  * RETURNS
 845  *  This function does not return. Either control resumes from any
 846  *  handler installed by calling set_terminate(), or (by default) abort()
 847  *  is called.
 848  */
 849 void CDECL MSVCRT_terminate(void)
 850 {
 851     thread_data_t *data = msvcrt_get_thread_data();
 852     if (data->terminate_handler) data->terminate_handler();
 853     MSVCRT_abort();
 854 }
 855
 856 /******************************************************************
 857  *              ?unexpected@@YAXXZ (MSVCRT.@)
 858  */
 859 void CDECL MSVCRT_unexpected(void)
 860 {
 861     thread_data_t *data = msvcrt_get_thread_data();
 862     if (data->unexpected_handler) data->unexpected_handler();
 863     MSVCRT_terminate();
 864 }
 865
 866
 867 /******************************************************************
 868  *              __RTtypeid (MSVCRT.@)
 869  *
 870  * Retrieve the Run Time Type Information (RTTI) for a C++ object.
 871  *
 872  * PARAMS
 873  *  cppobj [I] C++ object to get type information for.
 874  *
 875  * RETURNS
 876  *  Success: A type_info object describing cppobj.
 877  *  Failure: If the object to be cast has no RTTI, a __non_rtti_object
 878  *           exception is thrown. If cppobj is NULL, a bad_typeid exception
 879  *           is thrown. In either case, this function does not return.
 880  *
 881  * NOTES
 882  *  This function is usually called by compiler generated code as a result
 883  *  of using one of the C++ dynamic cast statements.
 884  */
 885 #ifndef __x86_64__
 886 const type_info* CDECL MSVCRT___RTtypeid(void *cppobj)
 887 {
 888     const type_info *ret;
 889
 890     if (!cppobj)
 891     {
 892         bad_typeid e;
 893         MSVCRT_bad_typeid_ctor( &e, "Attempted a typeid of NULL pointer!" );
 894         _CxxThrowException( &e, &bad_typeid_exception_type );
 895         return NULL;
 896     }
 897
 898     __TRY
 899     {
 900         const rtti_object_locator *obj_locator = get_obj_locator( cppobj );
 901         ret = obj_locator->type_descriptor;
 902     }
 903     __EXCEPT_PAGE_FAULT
 904     {
 905         __non_rtti_object e;
 906         MSVCRT___non_rtti_object_ctor( &e, "Bad read pointer - no RTTI data!" );
 907         _CxxThrowException( &e, &__non_rtti_object_exception_type );
 908         return NULL;
 909     }
 910     __ENDTRY
 911     return ret;
 912 }
 913
 914 #else
 915
 916 const type_info* CDECL MSVCRT___RTtypeid(void *cppobj)
 917 {
 918     const type_info *ret;
 919
 920     if (!cppobj)
 921     {
 922         bad_typeid e;
 923         MSVCRT_bad_typeid_ctor( &e, "Attempted a typeid of NULL pointer!" );
 924         _CxxThrowException( &e, &bad_typeid_exception_type );
 925         return NULL;
 926     }
 927
 928     __TRY
 929     {
 930         const rtti_object_locator *obj_locator = get_obj_locator( cppobj );
 931         char *base;
 932
 933         if(obj_locator->signature == 0)
 934             base = RtlPcToFileHeader((void*)obj_locator, (void**)&base);
 935         else
 936             base = (char*)obj_locator - obj_locator->object_locator;
 937
 938         ret = (type_info*)(base + obj_locator->type_descriptor);
 939     }
 940     __EXCEPT_PAGE_FAULT
 941     {
 942         __non_rtti_object e;
 943         MSVCRT___non_rtti_object_ctor( &e, "Bad read pointer - no RTTI data!" );
 944         _CxxThrowException( &e, &__non_rtti_object_exception_type );
 945         return NULL;
 946     }
 947     __ENDTRY
 948     return ret;
 949 }
 950 #endif
 951
 952 /******************************************************************
 953  *              __RTDynamicCast (MSVCRT.@)
 954  *
 955  * Dynamically cast a C++ object to one of its base classes.
 956  *
 957  * PARAMS
 958  *  cppobj   [I] Any C++ object to cast
 959  *  unknown  [I] Reserved, set to 0
 960  *  src      [I] type_info object describing cppobj
 961  *  dst      [I] type_info object describing the base class to cast to
 962  *  do_throw [I] TRUE = throw an exception if the cast fails, FALSE = don't
 963  *
 964  * RETURNS
 965  *  Success: The address of cppobj, cast to the object described by dst.
 966  *  Failure: NULL, If the object to be cast has no RTTI, or dst is not a
 967  *           valid cast for cppobj. If do_throw is TRUE, a bad_cast exception
 968  *           is thrown and this function does not return.
 969  *
 970  * NOTES
 971  *  This function is usually called by compiler generated code as a result
 972  *  of using one of the C++ dynamic cast statements.
 973  */
 974 #ifndef __x86_64__
 975 void* CDECL MSVCRT___RTDynamicCast(void *cppobj, int unknown,
 976                                    type_info *src, type_info *dst,
 977                                    int do_throw)
 978 {
 979     void *ret;
 980
 981     if (!cppobj) return NULL;
 982
 983     TRACE("obj: %p unknown: %d src: %p %s dst: %p %s do_throw: %d)\n",
 984           cppobj, unknown, src, dbgstr_type_info(src), dst, dbgstr_type_info(dst), do_throw);
 985
 986     /* To cast an object at runtime:
 987      * 1.Find out the true type of the object from the typeinfo at vtable[-1]
 988      * 2.Search for the destination type in the class hierarchy
 989      * 3.If destination type is found, return base object address + dest offset
 990      *   Otherwise, fail the cast
 991      *
 992      * FIXME: the unknown parameter doesn't seem to be used for anything
 993      */
 994     __TRY
 995     {
 996         int i;
 997         const rtti_object_locator *obj_locator = get_obj_locator( cppobj );
 998         const rtti_object_hierarchy *obj_bases = obj_locator->type_hierarchy;
 999         const rtti_base_descriptor * const* base_desc = obj_bases->base_classes->bases;
1000
1001         if (TRACE_ON(msvcrt)) dump_obj_locator(obj_locator);
1002
1003         ret = NULL;
1004         for (i = 0; i < obj_bases->array_len; i++)
1005         {
1006             const type_info *typ = base_desc[i]->type_descriptor;
1007
1008             if (!strcmp(typ->mangled, dst->mangled))
1009             {
1010                 /* compute the correct this pointer for that base class */
1011                 void *this_ptr = (char *)cppobj - obj_locator->base_class_offset;
1012                 ret = get_this_pointer( &base_desc[i]->offsets, this_ptr );
1013                 break;
1014             }
1015         }
1016         /* VC++ sets do_throw to 1 when the result of a dynamic_cast is assigned
1017          * to a reference, since references cannot be NULL.
1018          */
1019         if (!ret && do_throw)
1020         {
1021             const char *msg = "Bad dynamic_cast!";
1022             bad_cast e;
1023             MSVCRT_bad_cast_ctor( &e, &msg );
1024             _CxxThrowException( &e, &bad_cast_exception_type );
1025         }
1026     }
1027     __EXCEPT_PAGE_FAULT
1028     {
1029         __non_rtti_object e;
1030         MSVCRT___non_rtti_object_ctor( &e, "Access violation - no RTTI data!" );
1031         _CxxThrowException( &e, &__non_rtti_object_exception_type );
1032         return NULL;
1033     }
1034     __ENDTRY
1035     return ret;
1036 }
1037
1038 #else
1039
1040 void* CDECL MSVCRT___RTDynamicCast(void *cppobj, int unknown,
1041         type_info *src, type_info *dst,
1042         int do_throw)
1043 {
1044     void *ret;
1045
1046     if (!cppobj) return NULL;
1047
1048     TRACE("obj: %p unknown: %d src: %p %s dst: %p %s do_throw: %d)\n",
1049             cppobj, unknown, src, dbgstr_type_info(src), dst, dbgstr_type_info(dst), do_throw);
1050
1051     __TRY
1052     {
1053         int i;
1054         const rtti_object_locator *obj_locator = get_obj_locator( cppobj );
1055         const rtti_object_hierarchy *obj_bases;
1056         const rtti_base_array *base_array;
1057         char *base;
1058
1059         if (TRACE_ON(msvcrt)) dump_obj_locator(obj_locator);
1060
1061         if(obj_locator->signature == 0)
1062             base = RtlPcToFileHeader((void*)obj_locator, (void**)&base);
1063         else
1064             base = (char*)obj_locator - obj_locator->object_locator;
1065
1066         obj_bases = (const rtti_object_hierarchy*)(base + obj_locator->type_hierarchy);
1067         base_array = (const rtti_base_array*)(base + obj_bases->base_classes);
1068
1069         ret = NULL;
1070         for (i = 0; i < obj_bases->array_len; i++)
1071         {
1072             const rtti_base_descriptor *base_desc = (const rtti_base_descriptor*)(base + base_array->bases[i]);
1073             const type_info *typ = (const type_info*)(base + base_desc->type_descriptor);
1074
1075             if (!strcmp(typ->mangled, dst->mangled))
1076             {
1077                 void *this_ptr = (char *)cppobj - obj_locator->base_class_offset;
1078                 ret = get_this_pointer( &base_desc->offsets, this_ptr );
1079                 break;
1080             }
1081         }
1082         if (!ret && do_throw)
1083         {
1084             const char *msg = "Bad dynamic_cast!";
1085             bad_cast e;
1086             MSVCRT_bad_cast_ctor( &e, &msg );
1087             _CxxThrowException( &e, &bad_cast_exception_type );
1088         }
1089     }
1090     __EXCEPT_PAGE_FAULT
1091     {
1092         __non_rtti_object e;
1093         MSVCRT___non_rtti_object_ctor( &e, "Access violation - no RTTI data!" );
1094         _CxxThrowException( &e, &__non_rtti_object_exception_type );
1095         return NULL;
1096     }
1097     __ENDTRY
1098     return ret;
1099 }
1100 #endif
1101
1102
1103 /******************************************************************
1104  *              __RTCastToVoid (MSVCRT.@)
1105  *
1106  * Dynamically cast a C++ object to a void*.
1107  *
1108  * PARAMS
1109  *  cppobj [I] The C++ object to cast
1110  *
1111  * RETURNS
1112  *  Success: The base address of the object as a void*.
1113  *  Failure: NULL, if cppobj is NULL or has no RTTI.
1114  *
1115  * NOTES
1116  *  This function is usually called by compiler generated code as a result
1117  *  of using one of the C++ dynamic cast statements.
1118  */
1119 void* CDECL MSVCRT___RTCastToVoid(void *cppobj)
1120 {
1121     void *ret;
1122
1123     if (!cppobj) return NULL;
1124
1125     __TRY
1126     {
1127         const rtti_object_locator *obj_locator = get_obj_locator( cppobj );
1128         ret = (char *)cppobj - obj_locator->base_class_offset;
1129     }
1130     __EXCEPT_PAGE_FAULT
1131     {
1132         __non_rtti_object e;
1133         MSVCRT___non_rtti_object_ctor( &e, "Access violation - no RTTI data!" );
1134         _CxxThrowException( &e, &__non_rtti_object_exception_type );
1135         return NULL;
1136     }
1137     __ENDTRY
1138     return ret;
1139 }
1140
1141
1142 /*********************************************************************
1143  *              _CxxThrowException (MSVCRT.@)
1144  */
1145 void WINAPI _CxxThrowException( exception *object, const cxx_exception_type *type )
1146 {
1147     ULONG_PTR args[3];
1148
1149     args[0] = CXX_FRAME_MAGIC_VC6;
1150     args[1] = (ULONG_PTR)object;
1151     args[2] = (ULONG_PTR)type;
1152     RaiseException( CXX_EXCEPTION, EH_NONCONTINUABLE, 3, args );
1153 }
1154
1155 /*********************************************************************
1156  * ?_is_exception_typeof@@YAHABVtype_info@@PAU_EXCEPTION_POINTERS@@@Z
1157  * ?_is_exception_typeof@@YAHAEBVtype_info@@PEAU_EXCEPTION_POINTERS@@@Z
1158  */
1159 #ifndef __x86_64__
1160 int __cdecl _is_exception_typeof(const type_info *ti, EXCEPTION_POINTERS *ep)
1161 {
1162     int ret = -1;
1163
1164     TRACE("(%p %p)\n", ti, ep);
1165
1166     __TRY
1167     {
1168         EXCEPTION_RECORD *rec = ep->ExceptionRecord;
1169
1170         if (rec->ExceptionCode==CXX_EXCEPTION && rec->NumberParameters==3 &&
1171                 (rec->ExceptionInformation[0]==CXX_FRAME_MAGIC_VC6 ||
1172                  rec->ExceptionInformation[0]==CXX_FRAME_MAGIC_VC7 ||
1173                  rec->ExceptionInformation[0]==CXX_FRAME_MAGIC_VC8))
1174         {
1175             const cxx_type_info_table *tit = ((cxx_exception_type*)rec->ExceptionInformation[2])->type_info_table;
1176             int i;
1177
1178             for (i=0; i<tit->count; i++) {
1179                 if (ti==tit->info[i]->type_info || !strcmp(ti->mangled, tit->info[i]->type_info->mangled))
1180                 {
1181                     ret = 1;
1182                     break;
1183                 }
1184             }
1185
1186             if (i == tit->count)
1187                 ret = 0;
1188         }
1189     }
1190     __EXCEPT_PAGE_FAULT
1191     __ENDTRY
1192
1193     if(ret == -1)
1194         MSVCRT_terminate();
1195     return ret;
1196 }
1197 #else
1198 int __cdecl _is_exception_typeof(const type_info *ti, EXCEPTION_POINTERS *ep)
1199 {
1200     int ret = -1;
1201
1202     TRACE("(%p %p)\n", ti, ep);
1203
1204     __TRY
1205     {
1206         EXCEPTION_RECORD *rec = ep->ExceptionRecord;
1207
1208         if (rec->ExceptionCode==CXX_EXCEPTION && rec->NumberParameters==4 &&
1209                 (rec->ExceptionInformation[0]==CXX_FRAME_MAGIC_VC6 ||
1210                  rec->ExceptionInformation[0]==CXX_FRAME_MAGIC_VC7 ||
1211                  rec->ExceptionInformation[0]==CXX_FRAME_MAGIC_VC8))
1212         {
1213             const cxx_exception_type *et = (cxx_exception_type*)rec->ExceptionInformation[2];
1214             const cxx_type_info_table *tit = (const cxx_type_info_table*)(rec->ExceptionInformation[3]+et->type_info_table);
1215             int i;
1216
1217             for (i=0; i<tit->count; i++) {
1218                 const cxx_type_info *cti = (const cxx_type_info*)(rec->ExceptionInformation[3]+tit->info[i]);
1219                 const type_info *except_ti = (const type_info*)(rec->ExceptionInformation[3]+cti->type_info);
1220                 if (ti==except_ti || !strcmp(ti->mangled, except_ti->mangled))
1221                 {
1222                     ret = 1;
1223                     break;
1224                 }
1225             }
1226
1227             if (i == tit->count)
1228                 ret = 0;
1229         }
1230     }
1231     __EXCEPT_PAGE_FAULT
1232     __ENDTRY
1233
1234     if(ret == -1)
1235         MSVCRT_terminate();
1236     return ret;
1237 }
1238 #endif
1239
1240 /*********************************************************************
1241  * __clean_type_info_names_internal (MSVCR100.@)
1242  */
1243 void CDECL __clean_type_info_names_internal(void *p)
1244 {
1245     FIXME("(%p) stub\n", p);
1246 }
1247
1248 /*********************************************************************
1249  * ?_name_internal_method@type_info@@QBEPBDPAU__type_info_node@@@Z (MSVCR100.@)
1250  */
1251 DEFINE_THISCALL_WRAPPER(type_info_name_internal_method,8)
1252 const char * __thiscall type_info_name_internal_method(type_info * _this, struct __type_info_node *node)
1253 {
1254     static int once;
1255     if (node && !once++) FIXME("type_info_node parameter ignored\n");
1256
1257     return MSVCRT_type_info_name(_this);
1258 }
1259
1260 /* std::exception_ptr class helpers */
1261 typedef struct
1262 {
1263     EXCEPTION_RECORD *rec;
1264     int *ref; /* not binary compatible with native msvcr100 */
1265 } exception_ptr;
1266
1267 /*********************************************************************
1268  * ?__ExceptionPtrCreate@@YAXPAX@Z
1269  * ?__ExceptionPtrCreate@@YAXPEAX@Z
1270  */
1271 void __cdecl __ExceptionPtrCreate(exception_ptr *ep)
1272 {
1273     TRACE("(%p)\n", ep);
1274
1275     ep->rec = NULL;
1276     ep->ref = NULL;
1277 }
1278
1279 #ifdef __i386__
1280 static inline void call_dtor(const cxx_exception_type *type, void *func, void *object)
1281 {
1282     __asm__ __volatile__("call *%0" : : "m" (func), "c" (object) : "eax", "edx", "memory");
1283 }
1284 #elif __x86_64__
1285 static inline void call_dtor(const cxx_exception_type *type, unsigned int dtor, void *object)
1286 {
1287     char *base = RtlPcToFileHeader((void*)type, (void**)&base);
1288     void (__cdecl *func)(void*) = (void*)(base + dtor);
1289     func(object);
1290 }
1291 #else
1292 #define call_dtor(type, func, object) ((void (__cdecl*)(void*))(func))(object)
1293 #endif
1294
1295 /*********************************************************************
1296  * ?__ExceptionPtrDestroy@@YAXPAX@Z
1297  * ?__ExceptionPtrDestroy@@YAXPEAX@Z
1298  */
1299 void __cdecl __ExceptionPtrDestroy(exception_ptr *ep)
1300 {
1301     TRACE("(%p)\n", ep);
1302
1303     if (!ep->rec)
1304         return;
1305
1306     if (!InterlockedDecrement(ep->ref))
1307     {
1308         if (ep->rec->ExceptionCode == CXX_EXCEPTION)
1309         {
1310             const cxx_exception_type *type = (void*)ep->rec->ExceptionInformation[2];
1311             void *obj = (void*)ep->rec->ExceptionInformation[1];
1312
1313             if (type && type->destructor) call_dtor(type, type->destructor, obj);
1314             HeapFree(GetProcessHeap(), 0, obj);
1315         }
1316
1317         HeapFree(GetProcessHeap(), 0, ep->rec);
1318         HeapFree(GetProcessHeap(), 0, ep->ref);
1319     }
1320 }
1321
1322 /*********************************************************************
1323  * ?__ExceptionPtrCopy@@YAXPAXPBX@Z
1324  * ?__ExceptionPtrCopy@@YAXPEAXPEBX@Z
1325  */
1326 void __cdecl __ExceptionPtrCopy(exception_ptr *ep, const exception_ptr *copy)
1327 {
1328     TRACE("(%p %p)\n", ep, copy);
1329
1330     /* don't destroy object stored in ep */
1331     *ep = *copy;
1332     if (ep->ref)
1333         InterlockedIncrement(copy->ref);
1334 }
1335
1336 /*********************************************************************
1337  * ?__ExceptionPtrRethrow@@YAXPBX@Z
1338  * ?__ExceptionPtrRethrow@@YAXPEBX@Z
1339  */
1340 void __cdecl __ExceptionPtrRethrow(const exception_ptr *ep)
1341 {
1342     TRACE("(%p)\n", ep);
1343
1344     if (!ep->rec)
1345     {
1346         static const char *exception_msg = "bad exception";
1347         exception e;
1348
1349         MSVCRT_exception_ctor(&e, &exception_msg);
1350         _CxxThrowException(&e, &exception_exception_type);
1351         return;
1352     }
1353
1354     RaiseException(ep->rec->ExceptionCode, ep->rec->ExceptionFlags & (~EH_UNWINDING),
1355             ep->rec->NumberParameters, ep->rec->ExceptionInformation);
1356 }
1357
1358 #ifdef __i386__
1359 static inline void call_copy_ctor( void *func, void *this, void *src, int has_vbase )
1360 {
1361     TRACE( "calling copy ctor %p object %p src %p\n", func, this, src );
1362     if (has_vbase)
1363         /* in that case copy ctor takes an extra bool indicating whether to copy the base class */
1364         __asm__ __volatile__("pushl $1; pushl %2; call *%0"
1365                              : : "m" (func), "c" (this), "m" (src) : "eax", "edx", "memory" );
1366     else
1367         __asm__ __volatile__("pushl %2; call *%0"
1368                              : : "m" (func), "c" (this), "m" (src) : "eax", "edx", "memory" );
1369 }
1370 #else
1371 static inline void call_copy_ctor( void *func, void *this, void *src, int has_vbase )
1372 {
1373     TRACE( "calling copy ctor %p object %p src %p\n", func, this, src );
1374     if (has_vbase)
1375         ((void (__cdecl*)(void*, void*, BOOL))func)(this, src, 1);
1376     else
1377         ((void (__cdecl*)(void*, void*))func)(this, src);
1378 }
1379 #endif
1380
1381 /*********************************************************************
1382  * ?__ExceptionPtrCurrentException@@YAXPAX@Z
1383  * ?__ExceptionPtrCurrentException@@YAXPEAX@Z
1384  */
1385 #ifndef __x86_64__
1386 void __cdecl __ExceptionPtrCurrentException(exception_ptr *ep)
1387 {
1388     EXCEPTION_RECORD *rec = msvcrt_get_thread_data()->exc_record;
1389
1390     TRACE("(%p)\n", ep);
1391
1392     if (!rec)
1393     {
1394         ep->rec = NULL;
1395         ep->ref = NULL;
1396         return;
1397     }
1398
1399     ep->rec = HeapAlloc(GetProcessHeap(), 0, sizeof(EXCEPTION_RECORD));
1400     ep->ref = HeapAlloc(GetProcessHeap(), 0, sizeof(int));
1401
1402     *ep->rec = *rec;
1403     *ep->ref = 1;
1404
1405     if (ep->rec->ExceptionCode == CXX_EXCEPTION)
1406     {
1407         const cxx_exception_type *et = (void*)ep->rec->ExceptionInformation[2];
1408         const cxx_type_info *ti;
1409         void **data, *obj;
1410
1411         ti = et->type_info_table->info[0];
1412         data = HeapAlloc(GetProcessHeap(), 0, ti->size);
1413
1414         obj = (void*)ep->rec->ExceptionInformation[1];
1415         if (ti->flags & CLASS_IS_SIMPLE_TYPE)
1416         {
1417             memcpy(data, obj, ti->size);
1418             if (ti->size == sizeof(void *)) *data = get_this_pointer(&ti->offsets, *data);
1419         }
1420         else if (ti->copy_ctor)
1421         {
1422             call_copy_ctor(ti->copy_ctor, data, get_this_pointer(&ti->offsets, obj),
1423                     ti->flags & CLASS_HAS_VIRTUAL_BASE_CLASS);
1424         }
1425         else
1426             memcpy(data, get_this_pointer(&ti->offsets, obj), ti->size);
1427         ep->rec->ExceptionInformation[1] = (ULONG_PTR)data;
1428     }
1429     return;
1430 }
1431 #else
1432 void __cdecl __ExceptionPtrCurrentException(exception_ptr *ep)
1433 {
1434     EXCEPTION_RECORD *rec = msvcrt_get_thread_data()->exc_record;
1435
1436     TRACE("(%p)\n", ep);
1437
1438     if (!rec)
1439     {
1440         ep->rec = NULL;
1441         ep->ref = NULL;
1442         return;
1443     }
1444
1445     ep->rec = HeapAlloc(GetProcessHeap(), 0, sizeof(EXCEPTION_RECORD));
1446     ep->ref = HeapAlloc(GetProcessHeap(), 0, sizeof(int));
1447
1448     *ep->rec = *rec;
1449     *ep->ref = 1;
1450
1451     if (ep->rec->ExceptionCode == CXX_EXCEPTION)
1452     {
1453         const cxx_exception_type *et = (void*)ep->rec->ExceptionInformation[2];
1454         const cxx_type_info *ti;
1455         void **data, *obj;
1456         char *base = RtlPcToFileHeader((void*)et, (void**)&base);
1457
1458         ti = (const cxx_type_info*)(base + ((const cxx_type_info_table*)(base + et->type_info_table))->info[0]);
1459         data = HeapAlloc(GetProcessHeap(), 0, ti->size);
1460
1461         obj = (void*)ep->rec->ExceptionInformation[1];
1462         if (ti->flags & CLASS_IS_SIMPLE_TYPE)
1463         {
1464             memcpy(data, obj, ti->size);
1465             if (ti->size == sizeof(void *)) *data = get_this_pointer(&ti->offsets, *data);
1466         }
1467         else if (ti->copy_ctor)
1468         {
1469             call_copy_ctor(base + ti->copy_ctor, data, get_this_pointer(&ti->offsets, obj),
1470                     ti->flags & CLASS_HAS_VIRTUAL_BASE_CLASS);
1471         }
1472         else
1473             memcpy(data, get_this_pointer(&ti->offsets, obj), ti->size);
1474         ep->rec->ExceptionInformation[1] = (ULONG_PTR)data;
1475     }
1476     return;
1477 }
1478 #endif
1479
1480 void* __cdecl __AdjustPointer(void *obj, const this_ptr_offsets *off)
1481 {
1482     return get_this_pointer(off, obj);
1483 }