2 * msvcrt.dll C++ objects
4 * Copyright 2000 Jon Griffiths
5 * Copyright 2003, 2004 Alexandre Julliard
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.
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.
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
23 #include "wine/port.h"
31 #include "wine/exception.h"
33 #include "wine/debug.h"
35 #include "cppexcept.h"
38 WINE_DEFAULT_DEBUG_CHANNEL(msvcrt);
40 typedef exception bad_cast;
41 typedef exception bad_typeid;
42 typedef exception __non_rtti_object;
44 typedef struct _rtti_base_descriptor
46 const type_info *type_descriptor;
48 this_ptr_offsets offsets; /* offsets for computing the this pointer */
49 unsigned int attributes;
50 } rtti_base_descriptor;
52 typedef struct _rtti_base_array
54 const rtti_base_descriptor *bases[3]; /* First element is the class itself */
57 typedef struct _rtti_object_hierarchy
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;
65 typedef struct _rtti_object_locator
67 unsigned int signature;
68 int base_class_offset;
70 const type_info *type_descriptor;
71 const rtti_object_hierarchy *type_hierarchy;
72 } rtti_object_locator;
75 #ifdef __i386__ /* thiscall functions are i386-specific */
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, \
85 "jmp " __ASM_NAME(#func) )
88 #define THISCALL(func) func
89 #define THISCALL_NAME(func) __ASM_NAME(#func)
90 #define DEFINE_THISCALL_WRAPPER(func) /* nothing */
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;
100 static inline const rtti_object_locator *get_obj_locator( void *cppobj )
102 const vtable_ptr *vtable = get_vtable( cppobj );
103 return (const rtti_object_locator *)vtable[-1];
106 static void dump_obj_locator( const rtti_object_locator *ptr )
109 const rtti_object_hierarchy *h = ptr->type_hierarchy;
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++)
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) );
130 /* Internal common ctor for exception */
131 static void WINAPI EXCEPTION_ctor(exception *_this, const char** name)
133 _this->vtable = &MSVCRT_exception_vtable;
136 size_t name_len = strlen(*name) + 1;
137 _this->name = MSVCRT_malloc(name_len);
138 memcpy(_this->name, *name, name_len);
139 _this->do_free = TRUE;
144 _this->do_free = FALSE;
148 /******************************************************************
149 * ??0exception@@QAE@ABQBD@Z (MSVCRT.@)
151 DEFINE_THISCALL_WRAPPER(MSVCRT_exception_ctor);
152 exception * __stdcall MSVCRT_exception_ctor(exception * _this, const char ** name)
154 TRACE("(%p,%s)\n", _this, *name);
155 EXCEPTION_ctor(_this, name);
159 /******************************************************************
160 * ??0exception@@QAE@ABV0@@Z (MSVCRT.@)
162 DEFINE_THISCALL_WRAPPER(MSVCRT_exception_copy_ctor);
163 exception * __stdcall MSVCRT_exception_copy_ctor(exception * _this, const exception * rhs)
165 TRACE("(%p,%p)\n", _this, rhs);
169 _this->vtable = &MSVCRT_exception_vtable;
170 _this->name = rhs->name;
171 _this->do_free = FALSE;
174 EXCEPTION_ctor(_this, (const char**)&rhs->name);
175 TRACE("name = %s\n", _this->name);
179 /******************************************************************
180 * ??0exception@@QAE@XZ (MSVCRT.@)
182 DEFINE_THISCALL_WRAPPER(MSVCRT_exception_default_ctor);
183 exception * __stdcall MSVCRT_exception_default_ctor(exception * _this)
185 static const char* empty = NULL;
187 TRACE("(%p)\n", _this);
188 EXCEPTION_ctor(_this, &empty);
192 /******************************************************************
193 * ??1exception@@UAE@XZ (MSVCRT.@)
195 DEFINE_THISCALL_WRAPPER(MSVCRT_exception_dtor);
196 void __stdcall MSVCRT_exception_dtor(exception * _this)
198 TRACE("(%p)\n", _this);
199 _this->vtable = &MSVCRT_exception_vtable;
200 if (_this->do_free) MSVCRT_free(_this->name);
203 /******************************************************************
204 * ??4exception@@QAEAAV0@ABV0@@Z (MSVCRT.@)
206 DEFINE_THISCALL_WRAPPER(MSVCRT_exception_opequals);
207 exception * __stdcall MSVCRT_exception_opequals(exception * _this, const exception * rhs)
209 TRACE("(%p %p)\n", _this, rhs);
212 MSVCRT_exception_dtor(_this);
213 MSVCRT_exception_copy_ctor(_this, rhs);
215 TRACE("name = %s\n", _this->name);
219 /******************************************************************
220 * ??_Eexception@@UAEPAXI@Z (MSVCRT.@)
222 DEFINE_THISCALL_WRAPPER(MSVCRT_exception_vector_dtor);
223 void * __stdcall MSVCRT_exception_vector_dtor(exception * _this, unsigned int flags)
225 TRACE("(%p %x)\n", _this, flags);
228 /* we have an array, with the number of elements stored before the first object */
229 int i, *ptr = (int *)_this - 1;
231 for (i = *ptr - 1; i >= 0; i--) MSVCRT_exception_dtor(_this + i);
232 MSVCRT_operator_delete(ptr);
236 MSVCRT_exception_dtor(_this);
237 if (flags & 1) MSVCRT_operator_delete(_this);
242 /******************************************************************
243 * ??_Gexception@@UAEPAXI@Z (MSVCRT.@)
245 DEFINE_THISCALL_WRAPPER(MSVCRT_exception_scalar_dtor);
246 void * __stdcall MSVCRT_exception_scalar_dtor(exception * _this, unsigned int flags)
248 TRACE("(%p %x)\n", _this, flags);
249 MSVCRT_exception_dtor(_this);
250 if (flags & 1) MSVCRT_operator_delete(_this);
254 /******************************************************************
255 * ?what@exception@@UBEPBDXZ (MSVCRT.@)
257 DEFINE_THISCALL_WRAPPER(MSVCRT_what_exception);
258 const char * __stdcall MSVCRT_what_exception(exception * _this)
260 TRACE("(%p) returning %s\n", _this, _this->name);
261 return _this->name ? _this->name : "Unknown exception";
264 /******************************************************************
265 * ??0bad_typeid@@QAE@ABV0@@Z (MSVCRT.@)
267 DEFINE_THISCALL_WRAPPER(MSVCRT_bad_typeid_copy_ctor);
268 bad_typeid * __stdcall MSVCRT_bad_typeid_copy_ctor(bad_typeid * _this, const bad_typeid * rhs)
270 TRACE("(%p %p)\n", _this, rhs);
271 MSVCRT_exception_copy_ctor(_this, rhs);
272 _this->vtable = &MSVCRT_bad_typeid_vtable;
276 /******************************************************************
277 * ??0bad_typeid@@QAE@PBD@Z (MSVCRT.@)
279 DEFINE_THISCALL_WRAPPER(MSVCRT_bad_typeid_ctor);
280 bad_typeid * __stdcall MSVCRT_bad_typeid_ctor(bad_typeid * _this, const char * name)
282 TRACE("(%p %s)\n", _this, name);
283 EXCEPTION_ctor(_this, &name);
284 _this->vtable = &MSVCRT_bad_typeid_vtable;
288 /******************************************************************
289 * ??1bad_typeid@@UAE@XZ (MSVCRT.@)
291 DEFINE_THISCALL_WRAPPER(MSVCRT_bad_typeid_dtor);
292 void __stdcall MSVCRT_bad_typeid_dtor(bad_typeid * _this)
294 TRACE("(%p)\n", _this);
295 MSVCRT_exception_dtor(_this);
298 /******************************************************************
299 * ??4bad_typeid@@QAEAAV0@ABV0@@Z (MSVCRT.@)
301 DEFINE_THISCALL_WRAPPER(MSVCRT_bad_typeid_opequals);
302 bad_typeid * __stdcall MSVCRT_bad_typeid_opequals(bad_typeid * _this, const bad_typeid * rhs)
304 TRACE("(%p %p)\n", _this, rhs);
305 MSVCRT_exception_opequals(_this, rhs);
309 /******************************************************************
310 * ??_Ebad_typeid@@UAEPAXI@Z (MSVCRT.@)
312 DEFINE_THISCALL_WRAPPER(MSVCRT_bad_typeid_vector_dtor);
313 void * __stdcall MSVCRT_bad_typeid_vector_dtor(bad_typeid * _this, unsigned int flags)
315 TRACE("(%p %x)\n", _this, flags);
318 /* we have an array, with the number of elements stored before the first object */
319 int i, *ptr = (int *)_this - 1;
321 for (i = *ptr - 1; i >= 0; i--) MSVCRT_bad_typeid_dtor(_this + i);
322 MSVCRT_operator_delete(ptr);
326 MSVCRT_bad_typeid_dtor(_this);
327 if (flags & 1) MSVCRT_operator_delete(_this);
332 /******************************************************************
333 * ??_Gbad_typeid@@UAEPAXI@Z (MSVCRT.@)
335 DEFINE_THISCALL_WRAPPER(MSVCRT_bad_typeid_scalar_dtor);
336 void * __stdcall MSVCRT_bad_typeid_scalar_dtor(bad_typeid * _this, unsigned int flags)
338 TRACE("(%p %x)\n", _this, flags);
339 MSVCRT_bad_typeid_dtor(_this);
340 if (flags & 1) MSVCRT_operator_delete(_this);
344 /******************************************************************
345 * ??0__non_rtti_object@@QAE@ABV0@@Z (MSVCRT.@)
347 DEFINE_THISCALL_WRAPPER(MSVCRT___non_rtti_object_copy_ctor);
348 __non_rtti_object * __stdcall MSVCRT___non_rtti_object_copy_ctor(__non_rtti_object * _this,
349 const __non_rtti_object * rhs)
351 TRACE("(%p %p)\n", _this, rhs);
352 MSVCRT_bad_typeid_copy_ctor(_this, rhs);
353 _this->vtable = &MSVCRT___non_rtti_object_vtable;
357 /******************************************************************
358 * ??0__non_rtti_object@@QAE@PBD@Z (MSVCRT.@)
360 DEFINE_THISCALL_WRAPPER(MSVCRT___non_rtti_object_ctor);
361 __non_rtti_object * __stdcall MSVCRT___non_rtti_object_ctor(__non_rtti_object * _this,
364 TRACE("(%p %s)\n", _this, name);
365 EXCEPTION_ctor(_this, &name);
366 _this->vtable = &MSVCRT___non_rtti_object_vtable;
370 /******************************************************************
371 * ??1__non_rtti_object@@UAE@XZ (MSVCRT.@)
373 DEFINE_THISCALL_WRAPPER(MSVCRT___non_rtti_object_dtor);
374 void __stdcall MSVCRT___non_rtti_object_dtor(__non_rtti_object * _this)
376 TRACE("(%p)\n", _this);
377 MSVCRT_bad_typeid_dtor(_this);
380 /******************************************************************
381 * ??4__non_rtti_object@@QAEAAV0@ABV0@@Z (MSVCRT.@)
383 DEFINE_THISCALL_WRAPPER(MSVCRT___non_rtti_object_opequals);
384 __non_rtti_object * __stdcall MSVCRT___non_rtti_object_opequals(__non_rtti_object * _this,
385 const __non_rtti_object *rhs)
387 TRACE("(%p %p)\n", _this, rhs);
388 MSVCRT_bad_typeid_opequals(_this, rhs);
392 /******************************************************************
393 * ??_E__non_rtti_object@@UAEPAXI@Z (MSVCRT.@)
395 DEFINE_THISCALL_WRAPPER(MSVCRT___non_rtti_object_vector_dtor);
396 void * __stdcall MSVCRT___non_rtti_object_vector_dtor(__non_rtti_object * _this, unsigned int flags)
398 TRACE("(%p %x)\n", _this, flags);
401 /* we have an array, with the number of elements stored before the first object */
402 int i, *ptr = (int *)_this - 1;
404 for (i = *ptr - 1; i >= 0; i--) MSVCRT___non_rtti_object_dtor(_this + i);
405 MSVCRT_operator_delete(ptr);
409 MSVCRT___non_rtti_object_dtor(_this);
410 if (flags & 1) MSVCRT_operator_delete(_this);
415 /******************************************************************
416 * ??_G__non_rtti_object@@UAEPAXI@Z (MSVCRT.@)
418 DEFINE_THISCALL_WRAPPER(MSVCRT___non_rtti_object_scalar_dtor);
419 void * __stdcall MSVCRT___non_rtti_object_scalar_dtor(__non_rtti_object * _this, unsigned int flags)
421 TRACE("(%p %x)\n", _this, flags);
422 MSVCRT___non_rtti_object_dtor(_this);
423 if (flags & 1) MSVCRT_operator_delete(_this);
427 /******************************************************************
428 * ??0bad_cast@@QAE@ABQBD@Z (MSVCRT.@)
430 DEFINE_THISCALL_WRAPPER(MSVCRT_bad_cast_ctor);
431 bad_cast * __stdcall MSVCRT_bad_cast_ctor(bad_cast * _this, const char ** name)
433 TRACE("(%p %s)\n", _this, *name);
434 EXCEPTION_ctor(_this, name);
435 _this->vtable = &MSVCRT_bad_cast_vtable;
439 /******************************************************************
440 * ??0bad_cast@@QAE@ABV0@@Z (MSVCRT.@)
442 DEFINE_THISCALL_WRAPPER(MSVCRT_bad_cast_copy_ctor);
443 bad_cast * __stdcall MSVCRT_bad_cast_copy_ctor(bad_cast * _this, const bad_cast * rhs)
445 TRACE("(%p %p)\n", _this, rhs);
446 MSVCRT_exception_copy_ctor(_this, rhs);
447 _this->vtable = &MSVCRT_bad_cast_vtable;
451 /******************************************************************
452 * ??1bad_cast@@UAE@XZ (MSVCRT.@)
454 DEFINE_THISCALL_WRAPPER(MSVCRT_bad_cast_dtor);
455 void __stdcall MSVCRT_bad_cast_dtor(bad_cast * _this)
457 TRACE("(%p)\n", _this);
458 MSVCRT_exception_dtor(_this);
461 /******************************************************************
462 * ??4bad_cast@@QAEAAV0@ABV0@@Z (MSVCRT.@)
464 DEFINE_THISCALL_WRAPPER(MSVCRT_bad_cast_opequals);
465 bad_cast * __stdcall MSVCRT_bad_cast_opequals(bad_cast * _this, const bad_cast * rhs)
467 TRACE("(%p %p)\n", _this, rhs);
468 MSVCRT_exception_opequals(_this, rhs);
472 /******************************************************************
473 * ??_Ebad_cast@@UAEPAXI@Z (MSVCRT.@)
475 DEFINE_THISCALL_WRAPPER(MSVCRT_bad_cast_vector_dtor);
476 void * __stdcall MSVCRT_bad_cast_vector_dtor(bad_cast * _this, unsigned int flags)
478 TRACE("(%p %x)\n", _this, flags);
481 /* we have an array, with the number of elements stored before the first object */
482 int i, *ptr = (int *)_this - 1;
484 for (i = *ptr - 1; i >= 0; i--) MSVCRT_bad_cast_dtor(_this + i);
485 MSVCRT_operator_delete(ptr);
489 MSVCRT_bad_cast_dtor(_this);
490 if (flags & 1) MSVCRT_operator_delete(_this);
495 /******************************************************************
496 * ??_Gbad_cast@@UAEPAXI@Z (MSVCRT.@)
498 DEFINE_THISCALL_WRAPPER(MSVCRT_bad_cast_scalar_dtor);
499 void * __stdcall MSVCRT_bad_cast_scalar_dtor(bad_cast * _this, unsigned int flags)
501 TRACE("(%p %x)\n", _this, flags);
502 MSVCRT_bad_cast_dtor(_this);
503 if (flags & 1) MSVCRT_operator_delete(_this);
507 /******************************************************************
508 * ??8type_info@@QBEHABV0@@Z (MSVCRT.@)
510 DEFINE_THISCALL_WRAPPER(MSVCRT_type_info_opequals_equals);
511 int __stdcall MSVCRT_type_info_opequals_equals(type_info * _this, const type_info * rhs)
513 int ret = !strcmp(_this->mangled + 1, rhs->mangled + 1);
514 TRACE("(%p %p) returning %d\n", _this, rhs, ret);
518 /******************************************************************
519 * ??9type_info@@QBEHABV0@@Z (MSVCRT.@)
521 DEFINE_THISCALL_WRAPPER(MSVCRT_type_info_opnot_equals);
522 int __stdcall MSVCRT_type_info_opnot_equals(type_info * _this, const type_info * rhs)
524 int ret = !!strcmp(_this->mangled + 1, rhs->mangled + 1);
525 TRACE("(%p %p) returning %d\n", _this, rhs, ret);
529 /******************************************************************
530 * ?before@type_info@@QBEHABV1@@Z (MSVCRT.@)
532 DEFINE_THISCALL_WRAPPER(MSVCRT_type_info_before);
533 int __stdcall MSVCRT_type_info_before(type_info * _this, const type_info * rhs)
535 int ret = strcmp(_this->mangled + 1, rhs->mangled + 1) < 0;
536 TRACE("(%p %p) returning %d\n", _this, rhs, ret);
540 /******************************************************************
541 * ??1type_info@@UAE@XZ (MSVCRT.@)
543 DEFINE_THISCALL_WRAPPER(MSVCRT_type_info_dtor);
544 void __stdcall MSVCRT_type_info_dtor(type_info * _this)
546 TRACE("(%p)\n", _this);
548 MSVCRT_free(_this->name);
551 /******************************************************************
552 * ?name@type_info@@QBEPBDXZ (MSVCRT.@)
554 DEFINE_THISCALL_WRAPPER(MSVCRT_type_info_name);
555 const char * __stdcall MSVCRT_type_info_name(type_info * _this)
559 /* Create and set the demangled name */
560 /* Nota: mangled name in type_info struct always start with a '.', while
561 * it isn't valid for mangled name.
562 * Is this '.' really part of the mangled name, or has it some other meaning ?
564 char* name = __unDName(0, _this->mangled + 1, 0,
565 MSVCRT_malloc, MSVCRT_free, 0x2800);
569 unsigned int len = strlen(name);
571 /* It seems _unDName may leave blanks at the end of the demangled name */
572 while (len && name[--len] == ' ')
579 /* Another thread set this member since we checked above - use it */
585 _munlock(_EXIT_LOCK2);
588 TRACE("(%p) returning %s\n", _this, _this->name);
592 /******************************************************************
593 * ?raw_name@type_info@@QBEPBDXZ (MSVCRT.@)
595 DEFINE_THISCALL_WRAPPER(MSVCRT_type_info_raw_name);
596 const char * __stdcall MSVCRT_type_info_raw_name(type_info * _this)
598 TRACE("(%p) returning %s\n", _this, _this->mangled);
599 return _this->mangled;
603 DEFINE_THISCALL_WRAPPER(MSVCRT_type_info_vector_dtor);
604 void * __stdcall MSVCRT_type_info_vector_dtor(type_info * _this, unsigned int flags)
606 TRACE("(%p %x)\n", _this, flags);
609 /* we have an array, with the number of elements stored before the first object */
610 int i, *ptr = (int *)_this - 1;
612 for (i = *ptr - 1; i >= 0; i--) MSVCRT_type_info_dtor(_this + i);
613 MSVCRT_operator_delete(ptr);
617 MSVCRT_type_info_dtor(_this);
618 if (flags & 1) MSVCRT_operator_delete(_this);
625 #define __ASM_VTABLE(name,funcs) \
628 "\t.long " __ASM_NAME(#name "_rtti") "\n" \
629 "\t.globl " __ASM_NAME("MSVCRT_" #name "_vtable") "\n" \
630 __ASM_NAME("MSVCRT_" #name "_vtable") ":\n" \
631 "\t.long " THISCALL_NAME(MSVCRT_ ## name ## _vector_dtor) "\n" \
634 #define __ASM_EXCEPTION_VTABLE(name) \
635 __ASM_VTABLE(name, "\t.long " THISCALL_NAME(MSVCRT_what_exception) );
638 void __asm_dummy_vtables(void) {
641 __ASM_VTABLE(type_info,"");
642 __ASM_EXCEPTION_VTABLE(exception);
643 __ASM_EXCEPTION_VTABLE(bad_typeid);
644 __ASM_EXCEPTION_VTABLE(bad_cast);
645 __ASM_EXCEPTION_VTABLE(__non_rtti_object);
651 /* Static RTTI for exported objects */
653 static const type_info exception_type_info =
655 &MSVCRT_type_info_vtable,
660 static const rtti_base_descriptor exception_rtti_base_descriptor =
662 &exception_type_info,
668 static const rtti_base_array exception_rtti_base_array =
671 &exception_rtti_base_descriptor,
677 static const rtti_object_hierarchy exception_type_hierarchy =
682 &exception_rtti_base_array
685 const rtti_object_locator exception_rtti =
690 &exception_type_info,
691 &exception_type_hierarchy
694 static const cxx_type_info exception_cxx_type_info =
697 &exception_type_info,
700 (cxx_copy_ctor)THISCALL(MSVCRT_exception_copy_ctor)
703 static const type_info bad_typeid_type_info =
705 &MSVCRT_type_info_vtable,
710 static const rtti_base_descriptor bad_typeid_rtti_base_descriptor =
712 &bad_typeid_type_info,
718 static const rtti_base_array bad_typeid_rtti_base_array =
721 &bad_typeid_rtti_base_descriptor,
722 &exception_rtti_base_descriptor,
727 static const rtti_object_hierarchy bad_typeid_type_hierarchy =
732 &bad_typeid_rtti_base_array
735 const rtti_object_locator bad_typeid_rtti =
740 &bad_typeid_type_info,
741 &bad_typeid_type_hierarchy
744 static const cxx_type_info bad_typeid_cxx_type_info =
747 &bad_typeid_type_info,
750 (cxx_copy_ctor)THISCALL(MSVCRT_bad_typeid_copy_ctor)
753 static const type_info bad_cast_type_info =
755 &MSVCRT_type_info_vtable,
760 static const rtti_base_descriptor bad_cast_rtti_base_descriptor =
768 static const rtti_base_array bad_cast_rtti_base_array =
771 &bad_cast_rtti_base_descriptor,
772 &exception_rtti_base_descriptor,
777 static const rtti_object_hierarchy bad_cast_type_hierarchy =
782 &bad_cast_rtti_base_array
785 const rtti_object_locator bad_cast_rtti =
791 &bad_cast_type_hierarchy
794 static const cxx_type_info bad_cast_cxx_type_info =
800 (cxx_copy_ctor)THISCALL(MSVCRT_bad_cast_copy_ctor)
803 static const type_info __non_rtti_object_type_info =
805 &MSVCRT_type_info_vtable,
807 ".?AV__non_rtti_object@@"
810 static const rtti_base_descriptor __non_rtti_object_rtti_base_descriptor =
812 &__non_rtti_object_type_info,
818 static const rtti_base_array __non_rtti_object_rtti_base_array =
821 &__non_rtti_object_rtti_base_descriptor,
822 &bad_typeid_rtti_base_descriptor,
823 &exception_rtti_base_descriptor
827 static const rtti_object_hierarchy __non_rtti_object_type_hierarchy =
832 &__non_rtti_object_rtti_base_array
835 const rtti_object_locator __non_rtti_object_rtti =
840 &__non_rtti_object_type_info,
841 &__non_rtti_object_type_hierarchy
844 static const cxx_type_info __non_rtti_object_cxx_type_info =
847 &__non_rtti_object_type_info,
850 (cxx_copy_ctor)THISCALL(MSVCRT___non_rtti_object_copy_ctor)
853 static const type_info type_info_type_info =
855 &MSVCRT_type_info_vtable,
860 static const rtti_base_descriptor type_info_rtti_base_descriptor =
862 &type_info_type_info,
868 static const rtti_base_array type_info_rtti_base_array =
871 &type_info_rtti_base_descriptor,
877 static const rtti_object_hierarchy type_info_type_hierarchy =
882 &type_info_rtti_base_array
885 const rtti_object_locator type_info_rtti =
890 &type_info_type_info,
891 &type_info_type_hierarchy
895 * Exception RTTI for cpp objects
897 static const cxx_type_info_table bad_cast_type_info_table =
901 &__non_rtti_object_cxx_type_info,
902 &bad_typeid_cxx_type_info,
903 &exception_cxx_type_info
907 static const cxx_exception_type bad_cast_exception_type =
910 (void*)THISCALL(MSVCRT_bad_cast_dtor),
912 &bad_cast_type_info_table
915 static const cxx_type_info_table bad_typeid_type_info_table =
919 &bad_cast_cxx_type_info,
920 &exception_cxx_type_info,
925 static const cxx_exception_type bad_typeid_exception_type =
928 (void*)THISCALL(MSVCRT_bad_typeid_dtor),
930 &bad_cast_type_info_table
933 static const cxx_exception_type __non_rtti_object_exception_type =
936 (void*)THISCALL(MSVCRT___non_rtti_object_dtor),
938 &bad_typeid_type_info_table
942 /******************************************************************
943 * ?set_terminate@@YAP6AXXZP6AXXZ@Z (MSVCRT.@)
945 * Install a handler to be called when terminate() is called.
948 * func [I] Handler function to install
951 * The previously installed handler function, if any.
953 MSVCRT_terminate_function MSVCRT_set_terminate(MSVCRT_terminate_function func)
955 thread_data_t *data = msvcrt_get_thread_data();
956 MSVCRT_terminate_function previous = data->terminate_handler;
957 TRACE("(%p) returning %p\n",func,previous);
958 data->terminate_handler = func;
962 /******************************************************************
963 * ?set_unexpected@@YAP6AXXZP6AXXZ@Z (MSVCRT.@)
965 * Install a handler to be called when unexpected() is called.
968 * func [I] Handler function to install
971 * The previously installed handler function, if any.
973 MSVCRT_unexpected_function MSVCRT_set_unexpected(MSVCRT_unexpected_function func)
975 thread_data_t *data = msvcrt_get_thread_data();
976 MSVCRT_unexpected_function previous = data->unexpected_handler;
977 TRACE("(%p) returning %p\n",func,previous);
978 data->unexpected_handler = func;
982 /******************************************************************
983 * ?_set_se_translator@@YAP6AXIPAU_EXCEPTION_POINTERS@@@ZP6AXI0@Z@Z (MSVCRT.@)
985 MSVCRT__se_translator_function MSVCRT__set_se_translator(MSVCRT__se_translator_function func)
987 thread_data_t *data = msvcrt_get_thread_data();
988 MSVCRT__se_translator_function previous = data->se_translator;
989 TRACE("(%p) returning %p\n",func,previous);
990 data->se_translator = func;
994 /******************************************************************
995 * ?terminate@@YAXXZ (MSVCRT.@)
997 * Default handler for an unhandled exception.
1003 * This function does not return. Either control resumes from any
1004 * handler installed by calling set_terminate(), or (by default) abort()
1007 void MSVCRT_terminate(void)
1009 thread_data_t *data = msvcrt_get_thread_data();
1010 if (data->terminate_handler) data->terminate_handler();
1014 /******************************************************************
1015 * ?unexpected@@YAXXZ (MSVCRT.@)
1017 void MSVCRT_unexpected(void)
1019 thread_data_t *data = msvcrt_get_thread_data();
1020 if (data->unexpected_handler) data->unexpected_handler();
1025 /******************************************************************
1026 * __RTtypeid (MSVCRT.@)
1028 * Retrieve the Run Time Type Information (RTTI) for a C++ object.
1031 * cppobj [I] C++ object to get type information for.
1034 * Success: A type_info object describing cppobj.
1035 * Failure: If the object to be cast has no RTTI, a __non_rtti_object
1036 * exception is thrown. If cppobj is NULL, a bad_typeid exception
1037 * is thrown. In either case, this function does not return.
1040 * This function is usually called by compiler generated code as a result
1041 * of using one of the C++ dynamic cast statements.
1043 const type_info* MSVCRT___RTtypeid(void *cppobj)
1045 const type_info *ret;
1050 MSVCRT_bad_typeid_ctor( &e, "Attempted a typeid of NULL pointer!" );
1051 _CxxThrowException( &e, &bad_typeid_exception_type );
1057 const rtti_object_locator *obj_locator = get_obj_locator( cppobj );
1058 ret = obj_locator->type_descriptor;
1062 __non_rtti_object e;
1063 MSVCRT___non_rtti_object_ctor( &e, "Bad read pointer - no RTTI data!" );
1064 _CxxThrowException( &e, &bad_typeid_exception_type );
1071 /******************************************************************
1072 * __RTDynamicCast (MSVCRT.@)
1074 * Dynamically cast a C++ object to one of its base classes.
1077 * cppobj [I] Any C++ object to cast
1078 * unknown [I] Reserved, set to 0
1079 * src [I] type_info object describing cppobj
1080 * dst [I] type_info object describing the base class to cast to
1081 * do_throw [I] TRUE = throw an exception if the cast fails, FALSE = don't
1084 * Success: The address of cppobj, cast to the object described by dst.
1085 * Failure: NULL, If the object to be cast has no RTTI, or dst is not a
1086 * valid cast for cppobj. If do_throw is TRUE, a bad_cast exception
1087 * is thrown and this function does not return.
1090 * This function is usually called by compiler generated code as a result
1091 * of using one of the C++ dynamic cast statements.
1093 void* MSVCRT___RTDynamicCast(void *cppobj, int unknown,
1094 type_info *src, type_info *dst,
1099 if (!cppobj) return NULL;
1101 TRACE("obj: %p unknown: %d src: %p %s dst: %p %s do_throw: %d)\n",
1102 cppobj, unknown, src, dbgstr_type_info(src), dst, dbgstr_type_info(dst), do_throw);
1104 if (unknown) FIXME("Unknown parameter is non-zero: please report\n");
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
1115 const rtti_object_locator *obj_locator = get_obj_locator( cppobj );
1116 const rtti_object_hierarchy *obj_bases = obj_locator->type_hierarchy;
1117 const rtti_base_descriptor * const* base_desc = obj_bases->base_classes->bases;
1119 if (TRACE_ON(msvcrt)) dump_obj_locator(obj_locator);
1122 for (i = 0; i < obj_bases->array_len; i++)
1124 const type_info *typ = base_desc[i]->type_descriptor;
1126 if (!strcmp(typ->mangled, dst->mangled))
1128 /* compute the correct this pointer for that base class */
1129 void *this_ptr = (char *)cppobj - obj_locator->base_class_offset;
1130 ret = get_this_pointer( &base_desc[i]->offsets, this_ptr );
1134 /* VC++ sets do_throw to 1 when the result of a dynamic_cast is assigned
1135 * to a reference, since references cannot be NULL.
1137 if (!ret && do_throw)
1139 const char *msg = "Bad dynamic_cast!";
1141 MSVCRT_bad_cast_ctor( &e, &msg );
1142 _CxxThrowException( &e, &bad_cast_exception_type );
1147 __non_rtti_object e;
1148 MSVCRT___non_rtti_object_ctor( &e, "Access violation - no RTTI data!" );
1149 _CxxThrowException( &e, &bad_typeid_exception_type );
1157 /******************************************************************
1158 * __RTCastToVoid (MSVCRT.@)
1160 * Dynamically cast a C++ object to a void*.
1163 * cppobj [I] The C++ object to cast
1166 * Success: The base address of the object as a void*.
1167 * Failure: NULL, if cppobj is NULL or has no RTTI.
1170 * This function is usually called by compiler generated code as a result
1171 * of using one of the C++ dynamic cast statements.
1173 void* MSVCRT___RTCastToVoid(void *cppobj)
1177 if (!cppobj) return NULL;
1181 const rtti_object_locator *obj_locator = get_obj_locator( cppobj );
1182 ret = (char *)cppobj - obj_locator->base_class_offset;
1186 __non_rtti_object e;
1187 MSVCRT___non_rtti_object_ctor( &e, "Access violation - no RTTI data!" );
1188 _CxxThrowException( &e, &bad_typeid_exception_type );