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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, 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
);