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