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     char* name = __unDName(0, _this->mangled, 0,
 569                            (malloc_func_t)MSVCRT_malloc,
 570                            (free_func_t)MSVCRT_free, 0x2800);
 571
 572     if (name)
 573     {
 574       unsigned int len = strlen(name);
 575
 576       /* It seems _unDName may leave blanks at the end of the demangled name */
 577       if (name[len] == ' ')
 578         name[len] = '\0';
 579
 580       _mlock(_EXIT_LOCK2);
 581
 582       if (_this->name)
 583       {
 584         /* Another thread set this member since we checked above - use it */
 585         MSVCRT_free(name);
 586       }
 587       else
 588         _this->name = name;
 589
 590       _munlock(_EXIT_LOCK2);
 591     }
 592   }
 593   TRACE("(%p) returning %s\n", _this, _this->name);
 594   return _this->name;
 595 }
 596
 597 /******************************************************************
 598  *              ?raw_name@type_info@@QBEPBDXZ (MSVCRT.@)
 599  */
 600 DEFINE_THISCALL_WRAPPER(MSVCRT_type_info_raw_name);
 601 const char * __stdcall MSVCRT_type_info_raw_name(type_info * _this)
 602 {
 603   TRACE("(%p) returning %s\n", _this, _this->mangled);
 604   return _this->mangled;
 605 }
 606
 607 /* Unexported */
 608 DEFINE_THISCALL_WRAPPER(MSVCRT_type_info_vector_dtor);
 609 void * __stdcall MSVCRT_type_info_vector_dtor(type_info * _this, unsigned int flags)
 610 {
 611     TRACE("(%p %x)\n", _this, flags);
 612     if (flags & 2)
 613     {
 614         /* we have an array, with the number of elements stored before the first object */
 615         int i, *ptr = (int *)_this - 1;
 616
 617         for (i = *ptr - 1; i >= 0; i--) MSVCRT_type_info_dtor(_this + i);
 618         MSVCRT_operator_delete(ptr);
 619     }
 620     else
 621     {
 622         MSVCRT_type_info_dtor(_this);
 623         if (flags & 1) MSVCRT_operator_delete(_this);
 624     }
 625     return _this;
 626 }
 627
 628 /* vtables */
 629
 630 #define __ASM_VTABLE(name,funcs) \
 631     __asm__(".align 4\n" \
 632             "\t.long " __ASM_NAME(#name "_rtti") "\n" \
 633             "\t.globl " __ASM_NAME("MSVCRT_" #name "_vtable") "\n" \
 634             __ASM_NAME("MSVCRT_" #name "_vtable") ":\n" \
 635             "\t.long " THISCALL_NAME(MSVCRT_ ## name ## _vector_dtor) "\n" \
 636             funcs);
 637
 638 #define __ASM_EXCEPTION_VTABLE(name) \
 639     __ASM_VTABLE(name, "\t.long " THISCALL_NAME(MSVCRT_what_exception) );
 640
 641 #ifndef __GNUC__
 642 void __asm_dummy_vtables(void) {
 643 #endif
 644
 645 __ASM_VTABLE(type_info,"");
 646 __ASM_EXCEPTION_VTABLE(exception);
 647 __ASM_EXCEPTION_VTABLE(bad_typeid);
 648 __ASM_EXCEPTION_VTABLE(bad_cast);
 649 __ASM_EXCEPTION_VTABLE(__non_rtti_object);
 650
 651 #ifndef __GNUC__
 652 }
 653 #endif
 654
 655 /* Static RTTI for exported objects */
 656
 657 static const type_info exception_type_info =
 658 {
 659   &MSVCRT_type_info_vtable,
 660   NULL,
 661   ".?AVexception@@"
 662 };
 663
 664 static const rtti_base_descriptor exception_rtti_base_descriptor =
 665 {
 666   &exception_type_info,
 667   0,
 668   { 0, -1, 0 },
 669   0
 670 };
 671
 672 static const rtti_base_array exception_rtti_base_array =
 673 {
 674   {
 675     &exception_rtti_base_descriptor,
 676     NULL,
 677     NULL
 678   }
 679 };
 680
 681 static const rtti_object_hierarchy exception_type_hierarchy =
 682 {
 683   0,
 684   0,
 685   1,
 686   &exception_rtti_base_array
 687 };
 688
 689 const rtti_object_locator exception_rtti =
 690 {
 691   0,
 692   0,
 693   0,
 694   &exception_type_info,
 695   &exception_type_hierarchy
 696 };
 697
 698 static const cxx_type_info exception_cxx_type_info =
 699 {
 700   0,
 701   &exception_type_info,
 702   { 0, -1, 0 },
 703   sizeof(exception),
 704   (cxx_copy_ctor)THISCALL(MSVCRT_exception_copy_ctor)
 705 };
 706
 707 static const type_info bad_typeid_type_info =
 708 {
 709   &MSVCRT_type_info_vtable,
 710   NULL,
 711   ".?AVbad_typeid@@"
 712 };
 713
 714 static const rtti_base_descriptor bad_typeid_rtti_base_descriptor =
 715 {
 716   &bad_typeid_type_info,
 717   1,
 718   { 0, -1, 0 },
 719   0
 720 };
 721
 722 static const rtti_base_array bad_typeid_rtti_base_array =
 723 {
 724   {
 725     &bad_typeid_rtti_base_descriptor,
 726     &exception_rtti_base_descriptor,
 727     NULL
 728   }
 729 };
 730
 731 static const rtti_object_hierarchy bad_typeid_type_hierarchy =
 732 {
 733   0,
 734   0,
 735   2,
 736   &bad_typeid_rtti_base_array
 737 };
 738
 739 const rtti_object_locator bad_typeid_rtti =
 740 {
 741   0,
 742   0,
 743   0,
 744   &bad_typeid_type_info,
 745   &bad_typeid_type_hierarchy
 746 };
 747
 748 static const cxx_type_info bad_typeid_cxx_type_info =
 749 {
 750   0,
 751   &bad_typeid_type_info,
 752   { 0, -1, 0 },
 753   sizeof(exception),
 754   (cxx_copy_ctor)THISCALL(MSVCRT_bad_typeid_copy_ctor)
 755 };
 756
 757 static const type_info bad_cast_type_info =
 758 {
 759   &MSVCRT_type_info_vtable,
 760   NULL,
 761   ".?AVbad_cast@@"
 762 };
 763
 764 static const rtti_base_descriptor bad_cast_rtti_base_descriptor =
 765 {
 766   &bad_cast_type_info,
 767   1,
 768   { 0, -1, 0 },
 769   0
 770 };
 771
 772 static const rtti_base_array bad_cast_rtti_base_array =
 773 {
 774   {
 775     &bad_cast_rtti_base_descriptor,
 776     &exception_rtti_base_descriptor,
 777     NULL
 778   }
 779 };
 780
 781 static const rtti_object_hierarchy bad_cast_type_hierarchy =
 782 {
 783   0,
 784   0,
 785   2,
 786   &bad_cast_rtti_base_array
 787 };
 788
 789 const rtti_object_locator bad_cast_rtti =
 790 {
 791   0,
 792   0,
 793   0,
 794   &bad_cast_type_info,
 795   &bad_cast_type_hierarchy
 796 };
 797
 798 static const cxx_type_info bad_cast_cxx_type_info =
 799 {
 800   0,
 801   &bad_cast_type_info,
 802   { 0, -1, 0 },
 803   sizeof(exception),
 804   (cxx_copy_ctor)THISCALL(MSVCRT_bad_cast_copy_ctor)
 805 };
 806
 807 static const type_info __non_rtti_object_type_info =
 808 {
 809   &MSVCRT_type_info_vtable,
 810   NULL,
 811   ".?AV__non_rtti_object@@"
 812 };
 813
 814 static const rtti_base_descriptor __non_rtti_object_rtti_base_descriptor =
 815 {
 816   &__non_rtti_object_type_info,
 817   2,
 818   { 0, -1, 0 },
 819   0
 820 };
 821
 822 static const rtti_base_array __non_rtti_object_rtti_base_array =
 823 {
 824   {
 825     &__non_rtti_object_rtti_base_descriptor,
 826     &bad_typeid_rtti_base_descriptor,
 827     &exception_rtti_base_descriptor
 828   }
 829 };
 830
 831 static const rtti_object_hierarchy __non_rtti_object_type_hierarchy =
 832 {
 833   0,
 834   0,
 835   3,
 836   &__non_rtti_object_rtti_base_array
 837 };
 838
 839 const rtti_object_locator __non_rtti_object_rtti =
 840 {
 841   0,
 842   0,
 843   0,
 844   &__non_rtti_object_type_info,
 845   &__non_rtti_object_type_hierarchy
 846 };
 847
 848 static const cxx_type_info __non_rtti_object_cxx_type_info =
 849 {
 850   0,
 851   &__non_rtti_object_type_info,
 852   { 0, -1, 0 },
 853   sizeof(exception),
 854   (cxx_copy_ctor)THISCALL(MSVCRT___non_rtti_object_copy_ctor)
 855 };
 856
 857 static const type_info type_info_type_info =
 858 {
 859   &MSVCRT_type_info_vtable,
 860   NULL,
 861   ".?AVtype_info@@"
 862 };
 863
 864 static const rtti_base_descriptor type_info_rtti_base_descriptor =
 865 {
 866   &type_info_type_info,
 867   0,
 868   { 0, -1, 0 },
 869   0
 870 };
 871
 872 static const rtti_base_array type_info_rtti_base_array =
 873 {
 874   {
 875     &type_info_rtti_base_descriptor,
 876     NULL,
 877     NULL
 878   }
 879 };
 880
 881 static const rtti_object_hierarchy type_info_type_hierarchy =
 882 {
 883   0,
 884   0,
 885   1,
 886   &type_info_rtti_base_array
 887 };
 888
 889 const rtti_object_locator type_info_rtti =
 890 {
 891   0,
 892   0,
 893   0,
 894   &type_info_type_info,
 895   &type_info_type_hierarchy
 896 };
 897
 898 /*
 899  * Exception RTTI for cpp objects
 900  */
 901 static const cxx_type_info_table bad_cast_type_info_table =
 902 {
 903   3,
 904   {
 905    &__non_rtti_object_cxx_type_info,
 906    &bad_typeid_cxx_type_info,
 907    &exception_cxx_type_info
 908   }
 909 };
 910
 911 static const cxx_exception_type bad_cast_exception_type =
 912 {
 913   0,
 914   (void*)THISCALL(MSVCRT_bad_cast_dtor),
 915   NULL,
 916   &bad_cast_type_info_table
 917 };
 918
 919 static const cxx_type_info_table bad_typeid_type_info_table =
 920 {
 921   2,
 922   {
 923    &bad_cast_cxx_type_info,
 924    &exception_cxx_type_info,
 925    NULL
 926   }
 927 };
 928
 929 static const cxx_exception_type bad_typeid_exception_type =
 930 {
 931   0,
 932   (void*)THISCALL(MSVCRT_bad_typeid_dtor),
 933   NULL,
 934   &bad_cast_type_info_table
 935 };
 936
 937 static const cxx_exception_type __non_rtti_object_exception_type =
 938 {
 939   0,
 940   (void*)THISCALL(MSVCRT___non_rtti_object_dtor),
 941   NULL,
 942   &bad_typeid_type_info_table
 943 };
 944
 945
 946 /******************************************************************
 947  *              ?set_terminate@@YAP6AXXZP6AXXZ@Z (MSVCRT.@)
 948  *
 949  * Install a handler to be called when terminate() is called.
 950  *
 951  * PARAMS
 952  *  func [I] Handler function to install
 953  *
 954  * RETURNS
 955  *  The previously installed handler function, if any.
 956  */
 957 MSVCRT_terminate_function MSVCRT_set_terminate(MSVCRT_terminate_function func)
 958 {
 959     thread_data_t *data = msvcrt_get_thread_data();
 960     MSVCRT_terminate_function previous = data->terminate_handler;
 961     TRACE("(%p) returning %p\n",func,previous);
 962     data->terminate_handler = func;
 963     return previous;
 964 }
 965
 966 /******************************************************************
 967  *              ?set_unexpected@@YAP6AXXZP6AXXZ@Z (MSVCRT.@)
 968  *
 969  * Install a handler to be called when unexpected() is called.
 970  *
 971  * PARAMS
 972  *  func [I] Handler function to install
 973  *
 974  * RETURNS
 975  *  The previously installed handler function, if any.
 976  */
 977 MSVCRT_unexpected_function MSVCRT_set_unexpected(MSVCRT_unexpected_function func)
 978 {
 979     thread_data_t *data = msvcrt_get_thread_data();
 980     MSVCRT_unexpected_function previous = data->unexpected_handler;
 981     TRACE("(%p) returning %p\n",func,previous);
 982     data->unexpected_handler = func;
 983     return previous;
 984 }
 985
 986 /******************************************************************
 987  *              ?_set_se_translator@@YAP6AXIPAU_EXCEPTION_POINTERS@@@ZP6AXI0@Z@Z  (MSVCRT.@)
 988  */
 989 MSVCRT__se_translator_function MSVCRT__set_se_translator(MSVCRT__se_translator_function func)
 990 {
 991     thread_data_t *data = msvcrt_get_thread_data();
 992     MSVCRT__se_translator_function previous = data->se_translator;
 993     TRACE("(%p) returning %p\n",func,previous);
 994     data->se_translator = func;
 995     return previous;
 996 }
 997
 998 /******************************************************************
 999  *              ?terminate@@YAXXZ (MSVCRT.@)
1000  *
1001  * Default handler for an unhandled exception.
1002  *
1003  * PARAMS
1004  *  None.
1005  *
1006  * RETURNS
1007  *  This function does not return. Either control resumes from any
1008  *  handler installed by calling set_terminate(), or (by default) abort()
1009  *  is called.
1010  */
1011 void MSVCRT_terminate(void)
1012 {
1013     thread_data_t *data = msvcrt_get_thread_data();
1014     if (data->terminate_handler) data->terminate_handler();
1015     MSVCRT_abort();
1016 }
1017
1018 /******************************************************************
1019  *              ?unexpected@@YAXXZ (MSVCRT.@)
1020  */
1021 void MSVCRT_unexpected(void)
1022 {
1023     thread_data_t *data = msvcrt_get_thread_data();
1024     if (data->unexpected_handler) data->unexpected_handler();
1025     MSVCRT_terminate();
1026 }
1027
1028
1029 /******************************************************************
1030  *              __RTtypeid (MSVCRT.@)
1031  *
1032  * Retrieve the Run Time Type Information (RTTI) for a C++ object.
1033  *
1034  * PARAMS
1035  *  cppobj [I] C++ object to get type information for.
1036  *
1037  * RETURNS
1038  *  Success: A type_info object describing cppobj.
1039  *  Failure: If the object to be cast has no RTTI, a __non_rtti_object
1040  *           exception is thrown. If cppobj is NULL, a bad_typeid exception
1041  *           is thrown. In either case, this function does not return.
1042  *
1043  * NOTES
1044  *  This function is usually called by compiler generated code as a result
1045  *  of using one of the C++ dynamic cast statements.
1046  */
1047 const type_info* MSVCRT___RTtypeid(void *cppobj)
1048 {
1049     const type_info *ret;
1050
1051     if (!cppobj)
1052     {
1053         bad_typeid e;
1054         MSVCRT_bad_typeid_ctor( &e, "Attempted a typeid of NULL pointer!" );
1055         _CxxThrowException( &e, &bad_typeid_exception_type );
1056         return NULL;
1057     }
1058
1059     __TRY
1060     {
1061         const rtti_object_locator *obj_locator = get_obj_locator( cppobj );
1062         ret = obj_locator->type_descriptor;
1063     }
1064     __EXCEPT(page_fault)
1065     {
1066         __non_rtti_object e;
1067         MSVCRT___non_rtti_object_ctor( &e, "Bad read pointer - no RTTI data!" );
1068         _CxxThrowException( &e, &bad_typeid_exception_type );
1069         return NULL;
1070     }
1071     __ENDTRY
1072     return ret;
1073 }
1074
1075 /******************************************************************
1076  *              __RTDynamicCast (MSVCRT.@)
1077  *
1078  * Dynamically cast a C++ object to one of its base classes.
1079  *
1080  * PARAMS
1081  *  cppobj   [I] Any C++ object to cast
1082  *  unknown  [I] Reserved, set to 0
1083  *  src      [I] type_info object describing cppobj
1084  *  dst      [I] type_info object describing the base class to cast to
1085  *  do_throw [I] TRUE = throw an exception if the cast fails, FALSE = don't
1086  *
1087  * RETURNS
1088  *  Success: The address of cppobj, cast to the object described by dst.
1089  *  Failure: NULL, If the object to be cast has no RTTI, or dst is not a
1090  *           valid cast for cppobj. If do_throw is TRUE, a bad_cast exception
1091  *           is thrown and this function does not return.
1092  *
1093  * NOTES
1094  *  This function is usually called by compiler generated code as a result
1095  *  of using one of the C++ dynamic cast statements.
1096  */
1097 void* MSVCRT___RTDynamicCast(void *cppobj, int unknown,
1098                              type_info *src, type_info *dst,
1099                              int do_throw)
1100 {
1101     void *ret;
1102
1103     if (!cppobj) return NULL;
1104
1105     TRACE("obj: %p unknown: %d src: %p %s dst: %p %s do_throw: %d)\n",
1106           cppobj, unknown, src, dbgstr_type_info(src), dst, dbgstr_type_info(dst), do_throw);
1107
1108     if (unknown) FIXME("Unknown parameter is non-zero: please report\n");
1109
1110     /* To cast an object at runtime:
1111      * 1.Find out the true type of the object from the typeinfo at vtable[-1]
1112      * 2.Search for the destination type in the class hierarchy
1113      * 3.If destination type is found, return base object address + dest offset
1114      *   Otherwise, fail the cast
1115      */
1116     __TRY
1117     {
1118         int i;
1119         const rtti_object_locator *obj_locator = get_obj_locator( cppobj );
1120         const rtti_object_hierarchy *obj_bases = obj_locator->type_hierarchy;
1121         const rtti_base_descriptor **base_desc = obj_bases->base_classes->bases;
1122
1123         if (TRACE_ON(msvcrt)) dump_obj_locator(obj_locator);
1124
1125         ret = NULL;
1126         for (i = 0; i < obj_bases->array_len; i++)
1127         {
1128             const type_info *typ = base_desc[i]->type_descriptor;
1129
1130             if (!strcmp(typ->mangled, dst->mangled))
1131             {
1132                 /* compute the correct this pointer for that base class */
1133                 void *this_ptr = (char *)cppobj - obj_locator->base_class_offset;
1134                 ret = get_this_pointer( &base_desc[i]->offsets, this_ptr );
1135                 break;
1136             }
1137         }
1138         /* VC++ sets do_throw to 1 when the result of a dynamic_cast is assigned
1139          * to a reference, since references cannot be NULL.
1140          */
1141         if (!ret && do_throw)
1142         {
1143             const char *msg = "Bad dynamic_cast!";
1144             bad_cast e;
1145             MSVCRT_bad_cast_ctor( &e, &msg );
1146             _CxxThrowException( &e, &bad_cast_exception_type );
1147         }
1148     }
1149     __EXCEPT(page_fault)
1150     {
1151         __non_rtti_object e;
1152         MSVCRT___non_rtti_object_ctor( &e, "Access violation - no RTTI data!" );
1153         _CxxThrowException( &e, &bad_typeid_exception_type );
1154         return NULL;
1155     }
1156     __ENDTRY
1157     return ret;
1158 }
1159
1160
1161 /******************************************************************
1162  *              __RTCastToVoid (MSVCRT.@)
1163  *
1164  * Dynamically cast a C++ object to a void*.
1165  *
1166  * PARAMS
1167  *  cppobj [I] The C++ object to cast
1168  *
1169  * RETURNS
1170  *  Success: The base address of the object as a void*.
1171  *  Failure: NULL, if cppobj is NULL or has no RTTI.
1172  *
1173  * NOTES
1174  *  This function is usually called by compiler generated code as a result
1175  *  of using one of the C++ dynamic cast statements.
1176  */
1177 void* MSVCRT___RTCastToVoid(void *cppobj)
1178 {
1179     void *ret;
1180
1181     if (!cppobj) return NULL;
1182
1183     __TRY
1184     {
1185         const rtti_object_locator *obj_locator = get_obj_locator( cppobj );
1186         ret = (char *)cppobj - obj_locator->base_class_offset;
1187     }
1188     __EXCEPT(page_fault)
1189     {
1190         __non_rtti_object e;
1191         MSVCRT___non_rtti_object_ctor( &e, "Access violation - no RTTI data!" );
1192         _CxxThrowException( &e, &bad_typeid_exception_type );
1193         return NULL;
1194     }
1195     __ENDTRY
1196     return ret;
1197 }