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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  20  */
  21
  22 #include "config.h"
  23 #include "wine/port.h"
  24
  25 #include <stdarg.h>
  26
  27 #include "windef.h"
  28 #include "winbase.h"
  29 #include "winreg.h"
  30 #include "winternl.h"
  31 #include "wine/exception.h"
  32 #include "excpt.h"
  33 #include "wine/debug.h"
  34 #include "msvcrt.h"
  35 #include "cppexcept.h"
  36 #include "mtdll.h"
  37
  38 WINE_DEFAULT_DEBUG_CHANNEL(msvcrt);
  39
  40 typedef exception bad_cast;
  41 typedef exception bad_typeid;
  42 typedef exception __non_rtti_object;
  43
  44 typedef struct _rtti_base_descriptor
  45 {
  46   const type_info *type_descriptor;
  47   int num_base_classes;
  48   this_ptr_offsets offsets;    /* offsets for computing the this pointer */
  49   unsigned int attributes;
  50 } rtti_base_descriptor;
  51
  52 typedef struct _rtti_base_array
  53 {
  54   const rtti_base_descriptor *bases[3]; /* First element is the class itself */
  55 } rtti_base_array;
  56
  57 typedef struct _rtti_object_hierarchy
  58 {
  59   unsigned int signature;
  60   unsigned int attributes;
  61   int array_len; /* Size of the array pointed to by 'base_classes' */
  62   const rtti_base_array *base_classes;
  63 } rtti_object_hierarchy;
  64
  65 typedef struct _rtti_object_locator
  66 {
  67   unsigned int signature;
  68   int base_class_offset;
  69   unsigned int flags;
  70   const type_info *type_descriptor;
  71   const rtti_object_hierarchy *type_hierarchy;
  72 } rtti_object_locator;
  73
  74
  75 #ifdef __i386__  /* thiscall functions are i386-specific */
  76
  77 #define THISCALL(func) __thiscall_ ## func
  78 #define THISCALL_NAME(func) __ASM_NAME("__thiscall_" #func)
  79 #define DEFINE_THISCALL_WRAPPER(func) \
  80     extern void THISCALL(func)(); \
  81     __ASM_GLOBAL_FUNC(__thiscall_ ## func, \
  82                       "popl %eax\n\t" \
  83                       "pushl %ecx\n\t" \
  84                       "pushl %eax\n\t" \
  85                       "jmp " __ASM_NAME(#func) )
  86 #else /* __i386__ */
  87
  88 #define THISCALL(func) func
  89 #define THISCALL_NAME(func) __ASM_NAME(#func)
  90 #define DEFINE_THISCALL_WRAPPER(func) /* nothing */
  91
  92 #endif /* __i386__ */
  93
  94 extern const vtable_ptr MSVCRT_exception_vtable;
  95 extern const vtable_ptr MSVCRT_bad_typeid_vtable;
  96 extern const vtable_ptr MSVCRT_bad_cast_vtable;
  97 extern const vtable_ptr MSVCRT___non_rtti_object_vtable;
  98 extern const vtable_ptr MSVCRT_type_info_vtable;
  99
 100 static inline const rtti_object_locator *get_obj_locator( void *cppobj )
 101 {
 102     const vtable_ptr *vtable = get_vtable( cppobj );
 103     return (const rtti_object_locator *)vtable[-1];
 104 }
 105
 106 static void dump_obj_locator( const rtti_object_locator *ptr )
 107 {
 108     int i;
 109     const rtti_object_hierarchy *h = ptr->type_hierarchy;
 110
 111     TRACE( "%p: sig=%08x base_offset=%08x flags=%08x type=%p %s hierarchy=%p\n",
 112            ptr, ptr->signature, ptr->base_class_offset, ptr->flags,
 113            ptr->type_descriptor, dbgstr_type_info(ptr->type_descriptor), ptr->type_hierarchy );
 114     TRACE( "  hierarchy: sig=%08x attr=%08x len=%d base classes=%p\n",
 115            h->signature, h->attributes, h->array_len, h->base_classes );
 116     for (i = 0; i < h->array_len; i++)
 117     {
 118         TRACE( "    base class %p: num %d off %d,%d,%d attr %08x type %p %s\n",
 119                h->base_classes->bases[i],
 120                h->base_classes->bases[i]->num_base_classes,
 121                h->base_classes->bases[i]->offsets.this_offset,
 122                h->base_classes->bases[i]->offsets.vbase_descr,
 123                h->base_classes->bases[i]->offsets.vbase_offset,
 124                h->base_classes->bases[i]->attributes,
 125                h->base_classes->bases[i]->type_descriptor,
 126                dbgstr_type_info(h->base_classes->bases[i]->type_descriptor) );
 127     }
 128 }
 129
 130 /* filter for page-fault exceptions */
 131 static WINE_EXCEPTION_FILTER(page_fault)
 132 {
 133     if (GetExceptionCode() == EXCEPTION_ACCESS_VIOLATION)
 134         return EXCEPTION_EXECUTE_HANDLER;
 135     return EXCEPTION_CONTINUE_SEARCH;
 136 }
 137
 138 /* Internal common ctor for exception */
 139 static void WINAPI EXCEPTION_ctor(exception *_this, const char** name)
 140 {
 141   _this->vtable = &MSVCRT_exception_vtable;
 142   if (*name)
 143   {
 144     size_t name_len = strlen(*name) + 1;
 145     _this->name = MSVCRT_malloc(name_len);
 146     memcpy(_this->name, *name, name_len);
 147     _this->do_free = TRUE;
 148   }
 149   else
 150   {
 151     _this->name = NULL;
 152     _this->do_free = FALSE;
 153   }
 154 }
 155
 156 /******************************************************************
 157  *              ??0exception@@QAE@ABQBD@Z (MSVCRT.@)
 158  */
 159 DEFINE_THISCALL_WRAPPER(MSVCRT_exception_ctor);
 160 exception * __stdcall MSVCRT_exception_ctor(exception * _this, const char ** name)
 161 {
 162   TRACE("(%p,%s)\n", _this, *name);
 163   EXCEPTION_ctor(_this, name);
 164   return _this;
 165 }
 166
 167 /******************************************************************
 168  *              ??0exception@@QAE@ABV0@@Z (MSVCRT.@)
 169  */
 170 DEFINE_THISCALL_WRAPPER(MSVCRT_exception_copy_ctor);
 171 exception * __stdcall MSVCRT_exception_copy_ctor(exception * _this, const exception * rhs)
 172 {
 173   TRACE("(%p,%p)\n", _this, rhs);
 174
 175   if (!rhs->do_free)
 176   {
 177     _this->vtable = &MSVCRT_exception_vtable;
 178     _this->name = rhs->name;
 179     _this->do_free = FALSE;
 180   }
 181   else
 182     EXCEPTION_ctor(_this, (const char**)&rhs->name);
 183   TRACE("name = %s\n", _this->name);
 184   return _this;
 185 }
 186
 187 /******************************************************************
 188  *              ??0exception@@QAE@XZ (MSVCRT.@)
 189  */
 190 DEFINE_THISCALL_WRAPPER(MSVCRT_exception_default_ctor);
 191 exception * __stdcall MSVCRT_exception_default_ctor(exception * _this)
 192 {
 193   static const char* empty = NULL;
 194
 195   TRACE("(%p)\n", _this);
 196   EXCEPTION_ctor(_this, &empty);
 197   return _this;
 198 }
 199
 200 /******************************************************************
 201  *              ??1exception@@UAE@XZ (MSVCRT.@)
 202  */
 203 DEFINE_THISCALL_WRAPPER(MSVCRT_exception_dtor);
 204 void __stdcall MSVCRT_exception_dtor(exception * _this)
 205 {
 206   TRACE("(%p)\n", _this);
 207   _this->vtable = &MSVCRT_exception_vtable;
 208   if (_this->do_free) MSVCRT_free(_this->name);
 209 }
 210
 211 /******************************************************************
 212  *              ??4exception@@QAEAAV0@ABV0@@Z (MSVCRT.@)
 213  */
 214 DEFINE_THISCALL_WRAPPER(MSVCRT_exception_opequals);
 215 exception * __stdcall MSVCRT_exception_opequals(exception * _this, const exception * rhs)
 216 {
 217   TRACE("(%p %p)\n", _this, rhs);
 218   if (_this != rhs)
 219   {
 220       MSVCRT_exception_dtor(_this);
 221       MSVCRT_exception_copy_ctor(_this, rhs);
 222   }
 223   TRACE("name = %s\n", _this->name);
 224   return _this;
 225 }
 226
 227 /******************************************************************
 228  *              ??_Eexception@@UAEPAXI@Z (MSVCRT.@)
 229  */
 230 DEFINE_THISCALL_WRAPPER(MSVCRT_exception_vector_dtor);
 231 void * __stdcall MSVCRT_exception_vector_dtor(exception * _this, unsigned int flags)
 232 {
 233     TRACE("(%p %x)\n", _this, flags);
 234     if (flags & 2)
 235     {
 236         /* we have an array, with the number of elements stored before the first object */
 237         int i, *ptr = (int *)_this - 1;
 238
 239         for (i = *ptr - 1; i >= 0; i--) MSVCRT_exception_dtor(_this + i);
 240         MSVCRT_operator_delete(ptr);
 241     }
 242     else
 243     {
 244         MSVCRT_exception_dtor(_this);
 245         if (flags & 1) MSVCRT_operator_delete(_this);
 246     }
 247     return _this;
 248 }
 249
 250 /******************************************************************
 251  *              ??_Gexception@@UAEPAXI@Z (MSVCRT.@)
 252  */
 253 DEFINE_THISCALL_WRAPPER(MSVCRT_exception_scalar_dtor);
 254 void * __stdcall MSVCRT_exception_scalar_dtor(exception * _this, unsigned int flags)
 255 {
 256     TRACE("(%p %x)\n", _this, flags);
 257     MSVCRT_exception_dtor(_this);
 258     if (flags & 1) MSVCRT_operator_delete(_this);
 259     return _this;
 260 }
 261
 262 /******************************************************************
 263  *              ?what@exception@@UBEPBDXZ (MSVCRT.@)
 264  */
 265 DEFINE_THISCALL_WRAPPER(MSVCRT_what_exception);
 266 const char * __stdcall MSVCRT_what_exception(exception * _this)
 267 {
 268   TRACE("(%p) returning %s\n", _this, _this->name);
 269   return _this->name ? _this->name : "Unknown exception";
 270 }
 271
 272 /******************************************************************
 273  *              ??0bad_typeid@@QAE@ABV0@@Z (MSVCRT.@)
 274  */
 275 DEFINE_THISCALL_WRAPPER(MSVCRT_bad_typeid_copy_ctor);
 276 bad_typeid * __stdcall MSVCRT_bad_typeid_copy_ctor(bad_typeid * _this, const bad_typeid * rhs)
 277 {
 278   TRACE("(%p %p)\n", _this, rhs);
 279   MSVCRT_exception_copy_ctor(_this, rhs);
 280   _this->vtable = &MSVCRT_bad_typeid_vtable;
 281   return _this;
 282 }
 283
 284 /******************************************************************
 285  *              ??0bad_typeid@@QAE@PBD@Z (MSVCRT.@)
 286  */
 287 DEFINE_THISCALL_WRAPPER(MSVCRT_bad_typeid_ctor);
 288 bad_typeid * __stdcall MSVCRT_bad_typeid_ctor(bad_typeid * _this, const char * name)
 289 {
 290   TRACE("(%p %s)\n", _this, name);
 291   EXCEPTION_ctor(_this, &name);
 292   _this->vtable = &MSVCRT_bad_typeid_vtable;
 293   return _this;
 294 }
 295
 296 /******************************************************************
 297  *              ??1bad_typeid@@UAE@XZ (MSVCRT.@)
 298  */
 299 DEFINE_THISCALL_WRAPPER(MSVCRT_bad_typeid_dtor);
 300 void __stdcall MSVCRT_bad_typeid_dtor(bad_typeid * _this)
 301 {
 302   TRACE("(%p)\n", _this);
 303   MSVCRT_exception_dtor(_this);
 304 }
 305
 306 /******************************************************************
 307  *              ??4bad_typeid@@QAEAAV0@ABV0@@Z (MSVCRT.@)
 308  */
 309 DEFINE_THISCALL_WRAPPER(MSVCRT_bad_typeid_opequals);
 310 bad_typeid * __stdcall MSVCRT_bad_typeid_opequals(bad_typeid * _this, const bad_typeid * rhs)
 311 {
 312   TRACE("(%p %p)\n", _this, rhs);
 313   MSVCRT_exception_opequals(_this, rhs);
 314   return _this;
 315 }
 316
 317 /******************************************************************
 318  *              ??_Ebad_typeid@@UAEPAXI@Z (MSVCRT.@)
 319  */
 320 DEFINE_THISCALL_WRAPPER(MSVCRT_bad_typeid_vector_dtor);
 321 void * __stdcall MSVCRT_bad_typeid_vector_dtor(bad_typeid * _this, unsigned int flags)
 322 {
 323     TRACE("(%p %x)\n", _this, flags);
 324     if (flags & 2)
 325     {
 326         /* we have an array, with the number of elements stored before the first object */
 327         int i, *ptr = (int *)_this - 1;
 328
 329         for (i = *ptr - 1; i >= 0; i--) MSVCRT_bad_typeid_dtor(_this + i);
 330         MSVCRT_operator_delete(ptr);
 331     }
 332     else
 333     {
 334         MSVCRT_bad_typeid_dtor(_this);
 335         if (flags & 1) MSVCRT_operator_delete(_this);
 336     }
 337     return _this;
 338 }
 339
 340 /******************************************************************
 341  *              ??_Gbad_typeid@@UAEPAXI@Z (MSVCRT.@)
 342  */
 343 DEFINE_THISCALL_WRAPPER(MSVCRT_bad_typeid_scalar_dtor);
 344 void * __stdcall MSVCRT_bad_typeid_scalar_dtor(bad_typeid * _this, unsigned int flags)
 345 {
 346     TRACE("(%p %x)\n", _this, flags);
 347     MSVCRT_bad_typeid_dtor(_this);
 348     if (flags & 1) MSVCRT_operator_delete(_this);
 349     return _this;
 350 }
 351
 352 /******************************************************************
 353  *              ??0__non_rtti_object@@QAE@ABV0@@Z (MSVCRT.@)
 354  */
 355 DEFINE_THISCALL_WRAPPER(MSVCRT___non_rtti_object_copy_ctor);
 356 __non_rtti_object * __stdcall MSVCRT___non_rtti_object_copy_ctor(__non_rtti_object * _this,
 357                                                                  const __non_rtti_object * rhs)
 358 {
 359   TRACE("(%p %p)\n", _this, rhs);
 360   MSVCRT_bad_typeid_copy_ctor(_this, rhs);
 361   _this->vtable = &MSVCRT___non_rtti_object_vtable;
 362   return _this;
 363 }
 364
 365 /******************************************************************
 366  *              ??0__non_rtti_object@@QAE@PBD@Z (MSVCRT.@)
 367  */
 368 DEFINE_THISCALL_WRAPPER(MSVCRT___non_rtti_object_ctor);
 369 __non_rtti_object * __stdcall MSVCRT___non_rtti_object_ctor(__non_rtti_object * _this,
 370                                                             const char * name)
 371 {
 372   TRACE("(%p %s)\n", _this, name);
 373   EXCEPTION_ctor(_this, &name);
 374   _this->vtable = &MSVCRT___non_rtti_object_vtable;
 375   return _this;
 376 }
 377
 378 /******************************************************************
 379  *              ??1__non_rtti_object@@UAE@XZ (MSVCRT.@)
 380  */
 381 DEFINE_THISCALL_WRAPPER(MSVCRT___non_rtti_object_dtor);
 382 void __stdcall MSVCRT___non_rtti_object_dtor(__non_rtti_object * _this)
 383 {
 384   TRACE("(%p)\n", _this);
 385   MSVCRT_bad_typeid_dtor(_this);
 386 }
 387
 388 /******************************************************************
 389  *              ??4__non_rtti_object@@QAEAAV0@ABV0@@Z (MSVCRT.@)
 390  */
 391 DEFINE_THISCALL_WRAPPER(MSVCRT___non_rtti_object_opequals);
 392 __non_rtti_object * __stdcall MSVCRT___non_rtti_object_opequals(__non_rtti_object * _this,
 393                                                                 const __non_rtti_object *rhs)
 394 {
 395   TRACE("(%p %p)\n", _this, rhs);
 396   MSVCRT_bad_typeid_opequals(_this, rhs);
 397   return _this;
 398 }
 399
 400 /******************************************************************
 401  *              ??_E__non_rtti_object@@UAEPAXI@Z (MSVCRT.@)
 402  */
 403 DEFINE_THISCALL_WRAPPER(MSVCRT___non_rtti_object_vector_dtor);
 404 void * __stdcall MSVCRT___non_rtti_object_vector_dtor(__non_rtti_object * _this, unsigned int flags)
 405 {
 406     TRACE("(%p %x)\n", _this, flags);
 407     if (flags & 2)
 408     {
 409         /* we have an array, with the number of elements stored before the first object */
 410         int i, *ptr = (int *)_this - 1;
 411
 412         for (i = *ptr - 1; i >= 0; i--) MSVCRT___non_rtti_object_dtor(_this + i);
 413         MSVCRT_operator_delete(ptr);
 414     }
 415     else
 416     {
 417         MSVCRT___non_rtti_object_dtor(_this);
 418         if (flags & 1) MSVCRT_operator_delete(_this);
 419     }
 420     return _this;
 421 }
 422
 423 /******************************************************************
 424  *              ??_G__non_rtti_object@@UAEPAXI@Z (MSVCRT.@)
 425  */
 426 DEFINE_THISCALL_WRAPPER(MSVCRT___non_rtti_object_scalar_dtor);
 427 void * __stdcall MSVCRT___non_rtti_object_scalar_dtor(__non_rtti_object * _this, unsigned int flags)
 428 {
 429   TRACE("(%p %x)\n", _this, flags);
 430   MSVCRT___non_rtti_object_dtor(_this);
 431   if (flags & 1) MSVCRT_operator_delete(_this);
 432   return _this;
 433 }
 434
 435 /******************************************************************
 436  *              ??0bad_cast@@QAE@ABQBD@Z (MSVCRT.@)
 437  */
 438 DEFINE_THISCALL_WRAPPER(MSVCRT_bad_cast_ctor);
 439 bad_cast * __stdcall MSVCRT_bad_cast_ctor(bad_cast * _this, const char ** name)
 440 {
 441   TRACE("(%p %s)\n", _this, *name);
 442   EXCEPTION_ctor(_this, name);
 443   _this->vtable = &MSVCRT_bad_cast_vtable;
 444   return _this;
 445 }
 446
 447 /******************************************************************
 448  *              ??0bad_cast@@QAE@ABV0@@Z (MSVCRT.@)
 449  */
 450 DEFINE_THISCALL_WRAPPER(MSVCRT_bad_cast_copy_ctor);
 451 bad_cast * __stdcall MSVCRT_bad_cast_copy_ctor(bad_cast * _this, const bad_cast * rhs)
 452 {
 453   TRACE("(%p %p)\n", _this, rhs);
 454   MSVCRT_exception_copy_ctor(_this, rhs);
 455   _this->vtable = &MSVCRT_bad_cast_vtable;
 456   return _this;
 457 }
 458
 459 /******************************************************************
 460  *              ??1bad_cast@@UAE@XZ (MSVCRT.@)
 461  */
 462 DEFINE_THISCALL_WRAPPER(MSVCRT_bad_cast_dtor);
 463 void __stdcall MSVCRT_bad_cast_dtor(bad_cast * _this)
 464 {
 465   TRACE("(%p)\n", _this);
 466   MSVCRT_exception_dtor(_this);
 467 }
 468
 469 /******************************************************************
 470  *              ??4bad_cast@@QAEAAV0@ABV0@@Z (MSVCRT.@)
 471  */
 472 DEFINE_THISCALL_WRAPPER(MSVCRT_bad_cast_opequals);
 473 bad_cast * __stdcall MSVCRT_bad_cast_opequals(bad_cast * _this, const bad_cast * rhs)
 474 {
 475   TRACE("(%p %p)\n", _this, rhs);
 476   MSVCRT_exception_opequals(_this, rhs);
 477   return _this;
 478 }
 479
 480 /******************************************************************
 481  *              ??_Ebad_cast@@UAEPAXI@Z (MSVCRT.@)
 482  */
 483 DEFINE_THISCALL_WRAPPER(MSVCRT_bad_cast_vector_dtor);
 484 void * __stdcall MSVCRT_bad_cast_vector_dtor(bad_cast * _this, unsigned int flags)
 485 {
 486     TRACE("(%p %x)\n", _this, flags);
 487     if (flags & 2)
 488     {
 489         /* we have an array, with the number of elements stored before the first object */
 490         int i, *ptr = (int *)_this - 1;
 491
 492         for (i = *ptr - 1; i >= 0; i--) MSVCRT_bad_cast_dtor(_this + i);
 493         MSVCRT_operator_delete(ptr);
 494     }
 495     else
 496     {
 497         MSVCRT_bad_cast_dtor(_this);
 498         if (flags & 1) MSVCRT_operator_delete(_this);
 499     }
 500     return _this;
 501 }
 502
 503 /******************************************************************
 504  *              ??_Gbad_cast@@UAEPAXI@Z (MSVCRT.@)
 505  */
 506 DEFINE_THISCALL_WRAPPER(MSVCRT_bad_cast_scalar_dtor);
 507 void * __stdcall MSVCRT_bad_cast_scalar_dtor(bad_cast * _this, unsigned int flags)
 508 {
 509   TRACE("(%p %x)\n", _this, flags);
 510   MSVCRT_bad_cast_dtor(_this);
 511   if (flags & 1) MSVCRT_operator_delete(_this);
 512   return _this;
 513 }
 514
 515 /******************************************************************
 516  *              ??8type_info@@QBEHABV0@@Z (MSVCRT.@)
 517  */
 518 DEFINE_THISCALL_WRAPPER(MSVCRT_type_info_opequals_equals);
 519 int __stdcall MSVCRT_type_info_opequals_equals(type_info * _this, const type_info * rhs)
 520 {
 521     int ret = !strcmp(_this->mangled + 1, rhs->mangled + 1);
 522     TRACE("(%p %p) returning %d\n", _this, rhs, ret);
 523     return ret;
 524 }
 525
 526 /******************************************************************
 527  *              ??9type_info@@QBEHABV0@@Z (MSVCRT.@)
 528  */
 529 DEFINE_THISCALL_WRAPPER(MSVCRT_type_info_opnot_equals);
 530 int __stdcall MSVCRT_type_info_opnot_equals(type_info * _this, const type_info * rhs)
 531 {
 532     int ret = !!strcmp(_this->mangled + 1, rhs->mangled + 1);
 533     TRACE("(%p %p) returning %d\n", _this, rhs, ret);
 534     return ret;
 535 }
 536
 537 /******************************************************************
 538  *              ?before@type_info@@QBEHABV1@@Z (MSVCRT.@)
 539  */
 540 DEFINE_THISCALL_WRAPPER(MSVCRT_type_info_before);
 541 int __stdcall MSVCRT_type_info_before(type_info * _this, const type_info * rhs)
 542 {
 543     int ret = strcmp(_this->mangled + 1, rhs->mangled + 1) < 0;
 544     TRACE("(%p %p) returning %d\n", _this, rhs, ret);
 545     return ret;
 546 }
 547
 548 /******************************************************************
 549  *              ??1type_info@@UAE@XZ (MSVCRT.@)
 550  */
 551 DEFINE_THISCALL_WRAPPER(MSVCRT_type_info_dtor);
 552 void __stdcall MSVCRT_type_info_dtor(type_info * _this)
 553 {
 554   TRACE("(%p)\n", _this);
 555   if (_this->name)
 556     MSVCRT_free(_this->name);
 557 }
 558
 559 /******************************************************************
 560  *              ?name@type_info@@QBEPBDXZ (MSVCRT.@)
 561  */
 562 DEFINE_THISCALL_WRAPPER(MSVCRT_type_info_name);
 563 const char * __stdcall MSVCRT_type_info_name(type_info * _this)
 564 {
 565   if (!_this->name)
 566   {
 567     /* Create and set the demangled name */
 568     /* Nota: mangled name in type_info struct always start with a '.', while
 569      * it isn't valid for mangled name.
 570      * Is this '.' really part of the mangled name, or has it some other meaning ?
 571      */
 572     char* name = __unDName(0, _this->mangled + 1, 0,
 573                            MSVCRT_malloc, MSVCRT_free, 0x2800);
 574
 575     if (name)
 576     {
 577       unsigned int len = strlen(name);
 578
 579       /* It seems _unDName may leave blanks at the end of the demangled name */
 580       while (len && name[--len] == ' ')
 581         name[len] = '\0';
 582
 583       _mlock(_EXIT_LOCK2);
 584
 585       if (_this->name)
 586       {
 587         /* Another thread set this member since we checked above - use it */
 588         MSVCRT_free(name);
 589       }
 590       else
 591         _this->name = name;
 592
 593       _munlock(_EXIT_LOCK2);
 594     }
 595   }
 596   TRACE("(%p) returning %s\n", _this, _this->name);
 597   return _this->name;
 598 }
 599
 600 /******************************************************************
 601  *              ?raw_name@type_info@@QBEPBDXZ (MSVCRT.@)
 602  */
 603 DEFINE_THISCALL_WRAPPER(MSVCRT_type_info_raw_name);
 604 const char * __stdcall MSVCRT_type_info_raw_name(type_info * _this)
 605 {
 606   TRACE("(%p) returning %s\n", _this, _this->mangled);
 607   return _this->mangled;
 608 }
 609
 610 /* Unexported */
 611 DEFINE_THISCALL_WRAPPER(MSVCRT_type_info_vector_dtor);
 612 void * __stdcall MSVCRT_type_info_vector_dtor(type_info * _this, unsigned int flags)
 613 {
 614     TRACE("(%p %x)\n", _this, flags);
 615     if (flags & 2)
 616     {
 617         /* we have an array, with the number of elements stored before the first object */
 618         int i, *ptr = (int *)_this - 1;
 619
 620         for (i = *ptr - 1; i >= 0; i--) MSVCRT_type_info_dtor(_this + i);
 621         MSVCRT_operator_delete(ptr);
 622     }
 623     else
 624     {
 625         MSVCRT_type_info_dtor(_this);
 626         if (flags & 1) MSVCRT_operator_delete(_this);
 627     }
 628     return _this;
 629 }
 630
 631 /* vtables */
 632
 633 #define __ASM_VTABLE(name,funcs) \
 634     __asm__(".align 4\n" \
 635             "\t.long " __ASM_NAME(#name "_rtti") "\n" \
 636             "\t.globl " __ASM_NAME("MSVCRT_" #name "_vtable") "\n" \
 637             __ASM_NAME("MSVCRT_" #name "_vtable") ":\n" \
 638             "\t.long " THISCALL_NAME(MSVCRT_ ## name ## _vector_dtor) "\n" \
 639             funcs);
 640
 641 #define __ASM_EXCEPTION_VTABLE(name) \
 642     __ASM_VTABLE(name, "\t.long " THISCALL_NAME(MSVCRT_what_exception) );
 643
 644 #ifndef __GNUC__
 645 void __asm_dummy_vtables(void) {
 646 #endif
 647
 648 __ASM_VTABLE(type_info,"");
 649 __ASM_EXCEPTION_VTABLE(exception);
 650 __ASM_EXCEPTION_VTABLE(bad_typeid);
 651 __ASM_EXCEPTION_VTABLE(bad_cast);
 652 __ASM_EXCEPTION_VTABLE(__non_rtti_object);
 653
 654 #ifndef __GNUC__
 655 }
 656 #endif
 657
 658 /* Static RTTI for exported objects */
 659
 660 static const type_info exception_type_info =
 661 {
 662   &MSVCRT_type_info_vtable,
 663   NULL,
 664   ".?AVexception@@"
 665 };
 666
 667 static const rtti_base_descriptor exception_rtti_base_descriptor =
 668 {
 669   &exception_type_info,
 670   0,
 671   { 0, -1, 0 },
 672   0
 673 };
 674
 675 static const rtti_base_array exception_rtti_base_array =
 676 {
 677   {
 678     &exception_rtti_base_descriptor,
 679     NULL,
 680     NULL
 681   }
 682 };
 683
 684 static const rtti_object_hierarchy exception_type_hierarchy =
 685 {
 686   0,
 687   0,
 688   1,
 689   &exception_rtti_base_array
 690 };
 691
 692 const rtti_object_locator exception_rtti =
 693 {
 694   0,
 695   0,
 696   0,
 697   &exception_type_info,
 698   &exception_type_hierarchy
 699 };
 700
 701 static const cxx_type_info exception_cxx_type_info =
 702 {
 703   0,
 704   &exception_type_info,
 705   { 0, -1, 0 },
 706   sizeof(exception),
 707   (cxx_copy_ctor)THISCALL(MSVCRT_exception_copy_ctor)
 708 };
 709
 710 static const type_info bad_typeid_type_info =
 711 {
 712   &MSVCRT_type_info_vtable,
 713   NULL,
 714   ".?AVbad_typeid@@"
 715 };
 716
 717 static const rtti_base_descriptor bad_typeid_rtti_base_descriptor =
 718 {
 719   &bad_typeid_type_info,
 720   1,
 721   { 0, -1, 0 },
 722   0
 723 };
 724
 725 static const rtti_base_array bad_typeid_rtti_base_array =
 726 {
 727   {
 728     &bad_typeid_rtti_base_descriptor,
 729     &exception_rtti_base_descriptor,
 730     NULL
 731   }
 732 };
 733
 734 static const rtti_object_hierarchy bad_typeid_type_hierarchy =
 735 {
 736   0,
 737   0,
 738   2,
 739   &bad_typeid_rtti_base_array
 740 };
 741
 742 const rtti_object_locator bad_typeid_rtti =
 743 {
 744   0,
 745   0,
 746   0,
 747   &bad_typeid_type_info,
 748   &bad_typeid_type_hierarchy
 749 };
 750
 751 static const cxx_type_info bad_typeid_cxx_type_info =
 752 {
 753   0,
 754   &bad_typeid_type_info,
 755   { 0, -1, 0 },
 756   sizeof(exception),
 757   (cxx_copy_ctor)THISCALL(MSVCRT_bad_typeid_copy_ctor)
 758 };
 759
 760 static const type_info bad_cast_type_info =
 761 {
 762   &MSVCRT_type_info_vtable,
 763   NULL,
 764   ".?AVbad_cast@@"
 765 };
 766
 767 static const rtti_base_descriptor bad_cast_rtti_base_descriptor =
 768 {
 769   &bad_cast_type_info,
 770   1,
 771   { 0, -1, 0 },
 772   0
 773 };
 774
 775 static const rtti_base_array bad_cast_rtti_base_array =
 776 {
 777   {
 778     &bad_cast_rtti_base_descriptor,
 779     &exception_rtti_base_descriptor,
 780     NULL
 781   }
 782 };
 783
 784 static const rtti_object_hierarchy bad_cast_type_hierarchy =
 785 {
 786   0,
 787   0,
 788   2,
 789   &bad_cast_rtti_base_array
 790 };
 791
 792 const rtti_object_locator bad_cast_rtti =
 793 {
 794   0,
 795   0,
 796   0,
 797   &bad_cast_type_info,
 798   &bad_cast_type_hierarchy
 799 };
 800
 801 static const cxx_type_info bad_cast_cxx_type_info =
 802 {
 803   0,
 804   &bad_cast_type_info,
 805   { 0, -1, 0 },
 806   sizeof(exception),
 807   (cxx_copy_ctor)THISCALL(MSVCRT_bad_cast_copy_ctor)
 808 };
 809
 810 static const type_info __non_rtti_object_type_info =
 811 {
 812   &MSVCRT_type_info_vtable,
 813   NULL,
 814   ".?AV__non_rtti_object@@"
 815 };
 816
 817 static const rtti_base_descriptor __non_rtti_object_rtti_base_descriptor =
 818 {
 819   &__non_rtti_object_type_info,
 820   2,
 821   { 0, -1, 0 },
 822   0
 823 };
 824
 825 static const rtti_base_array __non_rtti_object_rtti_base_array =
 826 {
 827   {
 828     &__non_rtti_object_rtti_base_descriptor,
 829     &bad_typeid_rtti_base_descriptor,
 830     &exception_rtti_base_descriptor
 831   }
 832 };
 833
 834 static const rtti_object_hierarchy __non_rtti_object_type_hierarchy =
 835 {
 836   0,
 837   0,
 838   3,
 839   &__non_rtti_object_rtti_base_array
 840 };
 841
 842 const rtti_object_locator __non_rtti_object_rtti =
 843 {
 844   0,
 845   0,
 846   0,
 847   &__non_rtti_object_type_info,
 848   &__non_rtti_object_type_hierarchy
 849 };
 850
 851 static const cxx_type_info __non_rtti_object_cxx_type_info =
 852 {
 853   0,
 854   &__non_rtti_object_type_info,
 855   { 0, -1, 0 },
 856   sizeof(exception),
 857   (cxx_copy_ctor)THISCALL(MSVCRT___non_rtti_object_copy_ctor)
 858 };
 859
 860 static const type_info type_info_type_info =
 861 {
 862   &MSVCRT_type_info_vtable,
 863   NULL,
 864   ".?AVtype_info@@"
 865 };
 866
 867 static const rtti_base_descriptor type_info_rtti_base_descriptor =
 868 {
 869   &type_info_type_info,
 870   0,
 871   { 0, -1, 0 },
 872   0
 873 };
 874
 875 static const rtti_base_array type_info_rtti_base_array =
 876 {
 877   {
 878     &type_info_rtti_base_descriptor,
 879     NULL,
 880     NULL
 881   }
 882 };
 883
 884 static const rtti_object_hierarchy type_info_type_hierarchy =
 885 {
 886   0,
 887   0,
 888   1,
 889   &type_info_rtti_base_array
 890 };
 891
 892 const rtti_object_locator type_info_rtti =
 893 {
 894   0,
 895   0,
 896   0,
 897   &type_info_type_info,
 898   &type_info_type_hierarchy
 899 };
 900
 901 /*
 902  * Exception RTTI for cpp objects
 903  */
 904 static const cxx_type_info_table bad_cast_type_info_table =
 905 {
 906   3,
 907   {
 908    &__non_rtti_object_cxx_type_info,
 909    &bad_typeid_cxx_type_info,
 910    &exception_cxx_type_info
 911   }
 912 };
 913
 914 static const cxx_exception_type bad_cast_exception_type =
 915 {
 916   0,
 917   (void*)THISCALL(MSVCRT_bad_cast_dtor),
 918   NULL,
 919   &bad_cast_type_info_table
 920 };
 921
 922 static const cxx_type_info_table bad_typeid_type_info_table =
 923 {
 924   2,
 925   {
 926    &bad_cast_cxx_type_info,
 927    &exception_cxx_type_info,
 928    NULL
 929   }
 930 };
 931
 932 static const cxx_exception_type bad_typeid_exception_type =
 933 {
 934   0,
 935   (void*)THISCALL(MSVCRT_bad_typeid_dtor),
 936   NULL,
 937   &bad_cast_type_info_table
 938 };
 939
 940 static const cxx_exception_type __non_rtti_object_exception_type =
 941 {
 942   0,
 943   (void*)THISCALL(MSVCRT___non_rtti_object_dtor),
 944   NULL,
 945   &bad_typeid_type_info_table
 946 };
 947
 948
 949 /******************************************************************
 950  *              ?set_terminate@@YAP6AXXZP6AXXZ@Z (MSVCRT.@)
 951  *
 952  * Install a handler to be called when terminate() is called.
 953  *
 954  * PARAMS
 955  *  func [I] Handler function to install
 956  *
 957  * RETURNS
 958  *  The previously installed handler function, if any.
 959  */
 960 MSVCRT_terminate_function MSVCRT_set_terminate(MSVCRT_terminate_function func)
 961 {
 962     thread_data_t *data = msvcrt_get_thread_data();
 963     MSVCRT_terminate_function previous = data->terminate_handler;
 964     TRACE("(%p) returning %p\n",func,previous);
 965     data->terminate_handler = func;
 966     return previous;
 967 }
 968
 969 /******************************************************************
 970  *              ?set_unexpected@@YAP6AXXZP6AXXZ@Z (MSVCRT.@)
 971  *
 972  * Install a handler to be called when unexpected() is called.
 973  *
 974  * PARAMS
 975  *  func [I] Handler function to install
 976  *
 977  * RETURNS
 978  *  The previously installed handler function, if any.
 979  */
 980 MSVCRT_unexpected_function MSVCRT_set_unexpected(MSVCRT_unexpected_function func)
 981 {
 982     thread_data_t *data = msvcrt_get_thread_data();
 983     MSVCRT_unexpected_function previous = data->unexpected_handler;
 984     TRACE("(%p) returning %p\n",func,previous);
 985     data->unexpected_handler = func;
 986     return previous;
 987 }
 988
 989 /******************************************************************
 990  *              ?_set_se_translator@@YAP6AXIPAU_EXCEPTION_POINTERS@@@ZP6AXI0@Z@Z  (MSVCRT.@)
 991  */
 992 MSVCRT__se_translator_function MSVCRT__set_se_translator(MSVCRT__se_translator_function func)
 993 {
 994     thread_data_t *data = msvcrt_get_thread_data();
 995     MSVCRT__se_translator_function previous = data->se_translator;
 996     TRACE("(%p) returning %p\n",func,previous);
 997     data->se_translator = func;
 998     return previous;
 999 }
1000
1001 /******************************************************************
1002  *              ?terminate@@YAXXZ (MSVCRT.@)
1003  *
1004  * Default handler for an unhandled exception.
1005  *
1006  * PARAMS
1007  *  None.
1008  *
1009  * RETURNS
1010  *  This function does not return. Either control resumes from any
1011  *  handler installed by calling set_terminate(), or (by default) abort()
1012  *  is called.
1013  */
1014 void MSVCRT_terminate(void)
1015 {
1016     thread_data_t *data = msvcrt_get_thread_data();
1017     if (data->terminate_handler) data->terminate_handler();
1018     MSVCRT_abort();
1019 }
1020
1021 /******************************************************************
1022  *              ?unexpected@@YAXXZ (MSVCRT.@)
1023  */
1024 void MSVCRT_unexpected(void)
1025 {
1026     thread_data_t *data = msvcrt_get_thread_data();
1027     if (data->unexpected_handler) data->unexpected_handler();
1028     MSVCRT_terminate();
1029 }
1030
1031
1032 /******************************************************************
1033  *              __RTtypeid (MSVCRT.@)
1034  *
1035  * Retrieve the Run Time Type Information (RTTI) for a C++ object.
1036  *
1037  * PARAMS
1038  *  cppobj [I] C++ object to get type information for.
1039  *
1040  * RETURNS
1041  *  Success: A type_info object describing cppobj.
1042  *  Failure: If the object to be cast has no RTTI, a __non_rtti_object
1043  *           exception is thrown. If cppobj is NULL, a bad_typeid exception
1044  *           is thrown. In either case, this function does not return.
1045  *
1046  * NOTES
1047  *  This function is usually called by compiler generated code as a result
1048  *  of using one of the C++ dynamic cast statements.
1049  */
1050 const type_info* MSVCRT___RTtypeid(void *cppobj)
1051 {
1052     const type_info *ret;
1053
1054     if (!cppobj)
1055     {
1056         bad_typeid e;
1057         MSVCRT_bad_typeid_ctor( &e, "Attempted a typeid of NULL pointer!" );
1058         _CxxThrowException( &e, &bad_typeid_exception_type );
1059         return NULL;
1060     }
1061
1062     __TRY
1063     {
1064         const rtti_object_locator *obj_locator = get_obj_locator( cppobj );
1065         ret = obj_locator->type_descriptor;
1066     }
1067     __EXCEPT(page_fault)
1068     {
1069         __non_rtti_object e;
1070         MSVCRT___non_rtti_object_ctor( &e, "Bad read pointer - no RTTI data!" );
1071         _CxxThrowException( &e, &bad_typeid_exception_type );
1072         return NULL;
1073     }
1074     __ENDTRY
1075     return ret;
1076 }
1077
1078 /******************************************************************
1079  *              __RTDynamicCast (MSVCRT.@)
1080  *
1081  * Dynamically cast a C++ object to one of its base classes.
1082  *
1083  * PARAMS
1084  *  cppobj   [I] Any C++ object to cast
1085  *  unknown  [I] Reserved, set to 0
1086  *  src      [I] type_info object describing cppobj
1087  *  dst      [I] type_info object describing the base class to cast to
1088  *  do_throw [I] TRUE = throw an exception if the cast fails, FALSE = don't
1089  *
1090  * RETURNS
1091  *  Success: The address of cppobj, cast to the object described by dst.
1092  *  Failure: NULL, If the object to be cast has no RTTI, or dst is not a
1093  *           valid cast for cppobj. If do_throw is TRUE, a bad_cast exception
1094  *           is thrown and this function does not return.
1095  *
1096  * NOTES
1097  *  This function is usually called by compiler generated code as a result
1098  *  of using one of the C++ dynamic cast statements.
1099  */
1100 void* MSVCRT___RTDynamicCast(void *cppobj, int unknown,
1101                              type_info *src, type_info *dst,
1102                              int do_throw)
1103 {
1104     void *ret;
1105
1106     if (!cppobj) return NULL;
1107
1108     TRACE("obj: %p unknown: %d src: %p %s dst: %p %s do_throw: %d)\n",
1109           cppobj, unknown, src, dbgstr_type_info(src), dst, dbgstr_type_info(dst), do_throw);
1110
1111     if (unknown) FIXME("Unknown parameter is non-zero: please report\n");
1112
1113     /* To cast an object at runtime:
1114      * 1.Find out the true type of the object from the typeinfo at vtable[-1]
1115      * 2.Search for the destination type in the class hierarchy
1116      * 3.If destination type is found, return base object address + dest offset
1117      *   Otherwise, fail the cast
1118      */
1119     __TRY
1120     {
1121         int i;
1122         const rtti_object_locator *obj_locator = get_obj_locator( cppobj );
1123         const rtti_object_hierarchy *obj_bases = obj_locator->type_hierarchy;
1124         const rtti_base_descriptor * const* base_desc = obj_bases->base_classes->bases;
1125
1126         if (TRACE_ON(msvcrt)) dump_obj_locator(obj_locator);
1127
1128         ret = NULL;
1129         for (i = 0; i < obj_bases->array_len; i++)
1130         {
1131             const type_info *typ = base_desc[i]->type_descriptor;
1132
1133             if (!strcmp(typ->mangled, dst->mangled))
1134             {
1135                 /* compute the correct this pointer for that base class */
1136                 void *this_ptr = (char *)cppobj - obj_locator->base_class_offset;
1137                 ret = get_this_pointer( &base_desc[i]->offsets, this_ptr );
1138                 break;
1139             }
1140         }
1141         /* VC++ sets do_throw to 1 when the result of a dynamic_cast is assigned
1142          * to a reference, since references cannot be NULL.
1143          */
1144         if (!ret && do_throw)
1145         {
1146             const char *msg = "Bad dynamic_cast!";
1147             bad_cast e;
1148             MSVCRT_bad_cast_ctor( &e, &msg );
1149             _CxxThrowException( &e, &bad_cast_exception_type );
1150         }
1151     }
1152     __EXCEPT(page_fault)
1153     {
1154         __non_rtti_object e;
1155         MSVCRT___non_rtti_object_ctor( &e, "Access violation - no RTTI data!" );
1156         _CxxThrowException( &e, &bad_typeid_exception_type );
1157         return NULL;
1158     }
1159     __ENDTRY
1160     return ret;
1161 }
1162
1163
1164 /******************************************************************
1165  *              __RTCastToVoid (MSVCRT.@)
1166  *
1167  * Dynamically cast a C++ object to a void*.
1168  *
1169  * PARAMS
1170  *  cppobj [I] The C++ object to cast
1171  *
1172  * RETURNS
1173  *  Success: The base address of the object as a void*.
1174  *  Failure: NULL, if cppobj is NULL or has no RTTI.
1175  *
1176  * NOTES
1177  *  This function is usually called by compiler generated code as a result
1178  *  of using one of the C++ dynamic cast statements.
1179  */
1180 void* MSVCRT___RTCastToVoid(void *cppobj)
1181 {
1182     void *ret;
1183
1184     if (!cppobj) return NULL;
1185
1186     __TRY
1187     {
1188         const rtti_object_locator *obj_locator = get_obj_locator( cppobj );
1189         ret = (char *)cppobj - obj_locator->base_class_offset;
1190     }
1191     __EXCEPT(page_fault)
1192     {
1193         __non_rtti_object e;
1194         MSVCRT___non_rtti_object_ctor( &e, "Access violation - no RTTI data!" );
1195         _CxxThrowException( &e, &bad_typeid_exception_type );
1196         return NULL;
1197     }
1198     __ENDTRY
1199     return ret;
1200 }