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https://github.com/reactos/wine.git
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1202 lines
33 KiB
C
1202 lines
33 KiB
C
/*
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* msvcrt.dll C++ objects
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*
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* Copyright 2000 Jon Griffiths
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* Copyright 2003, 2004 Alexandre Julliard
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "config.h"
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#include "wine/port.h"
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#include <stdarg.h>
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#include "windef.h"
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#include "winbase.h"
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#include "winreg.h"
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#include "winternl.h"
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#include "wine/exception.h"
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#include "excpt.h"
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#include "wine/debug.h"
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#include "msvcrt.h"
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#include "cppexcept.h"
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#include "mtdll.h"
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WINE_DEFAULT_DEBUG_CHANNEL(msvcrt);
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typedef exception bad_cast;
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typedef exception bad_typeid;
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typedef exception __non_rtti_object;
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typedef struct _rtti_base_descriptor
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{
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const type_info *type_descriptor;
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int num_base_classes;
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this_ptr_offsets offsets; /* offsets for computing the this pointer */
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unsigned int attributes;
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} rtti_base_descriptor;
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typedef struct _rtti_base_array
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{
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const rtti_base_descriptor *bases[3]; /* First element is the class itself */
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} rtti_base_array;
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typedef struct _rtti_object_hierarchy
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{
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unsigned int signature;
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unsigned int attributes;
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int array_len; /* Size of the array pointed to by 'base_classes' */
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const rtti_base_array *base_classes;
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} rtti_object_hierarchy;
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typedef struct _rtti_object_locator
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{
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unsigned int signature;
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int base_class_offset;
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unsigned int flags;
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const type_info *type_descriptor;
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const rtti_object_hierarchy *type_hierarchy;
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} rtti_object_locator;
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#ifdef __i386__ /* thiscall functions are i386-specific */
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#define THISCALL(func) __thiscall_ ## func
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#define THISCALL_NAME(func) __ASM_NAME("__thiscall_" #func)
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#define DEFINE_THISCALL_WRAPPER(func) \
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extern void THISCALL(func)(); \
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__ASM_GLOBAL_FUNC(__thiscall_ ## func, \
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"popl %eax\n\t" \
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"pushl %ecx\n\t" \
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"pushl %eax\n\t" \
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"jmp " __ASM_NAME(#func) )
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#else /* __i386__ */
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#define THISCALL(func) func
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#define THISCALL_NAME(func) __ASM_NAME(#func)
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#define DEFINE_THISCALL_WRAPPER(func) /* nothing */
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#endif /* __i386__ */
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extern const vtable_ptr MSVCRT_exception_vtable;
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extern const vtable_ptr MSVCRT_bad_typeid_vtable;
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extern const vtable_ptr MSVCRT_bad_cast_vtable;
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extern const vtable_ptr MSVCRT___non_rtti_object_vtable;
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extern const vtable_ptr MSVCRT_type_info_vtable;
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static inline const rtti_object_locator *get_obj_locator( void *cppobj )
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{
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const vtable_ptr *vtable = get_vtable( cppobj );
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return (const rtti_object_locator *)vtable[-1];
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}
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static void dump_obj_locator( const rtti_object_locator *ptr )
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{
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int i;
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const rtti_object_hierarchy *h = ptr->type_hierarchy;
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TRACE( "%p: sig=%08x base_offset=%08x flags=%08x type=%p %s hierarchy=%p\n",
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ptr, ptr->signature, ptr->base_class_offset, ptr->flags,
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ptr->type_descriptor, dbgstr_type_info(ptr->type_descriptor), ptr->type_hierarchy );
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TRACE( " hierarchy: sig=%08x attr=%08x len=%d base classes=%p\n",
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h->signature, h->attributes, h->array_len, h->base_classes );
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for (i = 0; i < h->array_len; i++)
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{
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TRACE( " base class %p: num %d off %d,%d,%d attr %08x type %p %s\n",
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h->base_classes->bases[i],
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h->base_classes->bases[i]->num_base_classes,
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h->base_classes->bases[i]->offsets.this_offset,
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h->base_classes->bases[i]->offsets.vbase_descr,
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h->base_classes->bases[i]->offsets.vbase_offset,
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h->base_classes->bases[i]->attributes,
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h->base_classes->bases[i]->type_descriptor,
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dbgstr_type_info(h->base_classes->bases[i]->type_descriptor) );
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}
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}
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/* filter for page-fault exceptions */
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static WINE_EXCEPTION_FILTER(page_fault)
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{
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if (GetExceptionCode() == EXCEPTION_ACCESS_VIOLATION)
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return EXCEPTION_EXECUTE_HANDLER;
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return EXCEPTION_CONTINUE_SEARCH;
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}
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/* Internal common ctor for exception */
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static void WINAPI EXCEPTION_ctor(exception *_this, const char** name)
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{
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_this->vtable = &MSVCRT_exception_vtable;
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if (*name)
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{
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size_t name_len = strlen(*name) + 1;
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_this->name = MSVCRT_malloc(name_len);
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memcpy(_this->name, *name, name_len);
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_this->do_free = TRUE;
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}
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else
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{
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_this->name = NULL;
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_this->do_free = FALSE;
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}
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}
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/******************************************************************
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* ??0exception@@QAE@ABQBD@Z (MSVCRT.@)
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*/
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DEFINE_THISCALL_WRAPPER(MSVCRT_exception_ctor);
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exception * __stdcall MSVCRT_exception_ctor(exception * _this, const char ** name)
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{
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TRACE("(%p,%s)\n", _this, *name);
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EXCEPTION_ctor(_this, name);
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return _this;
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}
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/******************************************************************
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* ??0exception@@QAE@ABV0@@Z (MSVCRT.@)
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*/
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DEFINE_THISCALL_WRAPPER(MSVCRT_exception_copy_ctor);
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exception * __stdcall MSVCRT_exception_copy_ctor(exception * _this, const exception * rhs)
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{
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TRACE("(%p,%p)\n", _this, rhs);
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if (!rhs->do_free)
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{
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_this->vtable = &MSVCRT_exception_vtable;
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_this->name = rhs->name;
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_this->do_free = FALSE;
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}
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else
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EXCEPTION_ctor(_this, (const char**)&rhs->name);
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TRACE("name = %s\n", _this->name);
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return _this;
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}
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/******************************************************************
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* ??0exception@@QAE@XZ (MSVCRT.@)
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*/
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DEFINE_THISCALL_WRAPPER(MSVCRT_exception_default_ctor);
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exception * __stdcall MSVCRT_exception_default_ctor(exception * _this)
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{
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static const char* empty = NULL;
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TRACE("(%p)\n", _this);
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EXCEPTION_ctor(_this, &empty);
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return _this;
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}
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/******************************************************************
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* ??1exception@@UAE@XZ (MSVCRT.@)
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*/
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DEFINE_THISCALL_WRAPPER(MSVCRT_exception_dtor);
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void __stdcall MSVCRT_exception_dtor(exception * _this)
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{
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TRACE("(%p)\n", _this);
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_this->vtable = &MSVCRT_exception_vtable;
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if (_this->do_free) MSVCRT_free(_this->name);
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}
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/******************************************************************
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* ??4exception@@QAEAAV0@ABV0@@Z (MSVCRT.@)
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*/
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DEFINE_THISCALL_WRAPPER(MSVCRT_exception_opequals);
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exception * __stdcall MSVCRT_exception_opequals(exception * _this, const exception * rhs)
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{
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TRACE("(%p %p)\n", _this, rhs);
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if (_this != rhs)
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{
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MSVCRT_exception_dtor(_this);
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MSVCRT_exception_copy_ctor(_this, rhs);
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}
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TRACE("name = %s\n", _this->name);
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return _this;
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}
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/******************************************************************
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* ??_Eexception@@UAEPAXI@Z (MSVCRT.@)
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*/
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DEFINE_THISCALL_WRAPPER(MSVCRT_exception_vector_dtor);
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void * __stdcall MSVCRT_exception_vector_dtor(exception * _this, unsigned int flags)
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{
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TRACE("(%p %x)\n", _this, flags);
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if (flags & 2)
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{
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/* we have an array, with the number of elements stored before the first object */
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int i, *ptr = (int *)_this - 1;
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for (i = *ptr - 1; i >= 0; i--) MSVCRT_exception_dtor(_this + i);
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MSVCRT_operator_delete(ptr);
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}
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else
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{
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MSVCRT_exception_dtor(_this);
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if (flags & 1) MSVCRT_operator_delete(_this);
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}
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return _this;
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}
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/******************************************************************
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* ??_Gexception@@UAEPAXI@Z (MSVCRT.@)
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*/
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DEFINE_THISCALL_WRAPPER(MSVCRT_exception_scalar_dtor);
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void * __stdcall MSVCRT_exception_scalar_dtor(exception * _this, unsigned int flags)
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{
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TRACE("(%p %x)\n", _this, flags);
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MSVCRT_exception_dtor(_this);
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if (flags & 1) MSVCRT_operator_delete(_this);
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return _this;
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}
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/******************************************************************
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* ?what@exception@@UBEPBDXZ (MSVCRT.@)
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*/
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DEFINE_THISCALL_WRAPPER(MSVCRT_what_exception);
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const char * __stdcall MSVCRT_what_exception(exception * _this)
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{
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TRACE("(%p) returning %s\n", _this, _this->name);
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return _this->name ? _this->name : "Unknown exception";
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}
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/******************************************************************
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* ??0bad_typeid@@QAE@ABV0@@Z (MSVCRT.@)
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*/
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DEFINE_THISCALL_WRAPPER(MSVCRT_bad_typeid_copy_ctor);
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bad_typeid * __stdcall MSVCRT_bad_typeid_copy_ctor(bad_typeid * _this, const bad_typeid * rhs)
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{
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TRACE("(%p %p)\n", _this, rhs);
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MSVCRT_exception_copy_ctor(_this, rhs);
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_this->vtable = &MSVCRT_bad_typeid_vtable;
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return _this;
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}
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/******************************************************************
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* ??0bad_typeid@@QAE@PBD@Z (MSVCRT.@)
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*/
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DEFINE_THISCALL_WRAPPER(MSVCRT_bad_typeid_ctor);
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bad_typeid * __stdcall MSVCRT_bad_typeid_ctor(bad_typeid * _this, const char * name)
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{
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TRACE("(%p %s)\n", _this, name);
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EXCEPTION_ctor(_this, &name);
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_this->vtable = &MSVCRT_bad_typeid_vtable;
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return _this;
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}
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/******************************************************************
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* ??1bad_typeid@@UAE@XZ (MSVCRT.@)
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*/
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DEFINE_THISCALL_WRAPPER(MSVCRT_bad_typeid_dtor);
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void __stdcall MSVCRT_bad_typeid_dtor(bad_typeid * _this)
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{
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TRACE("(%p)\n", _this);
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MSVCRT_exception_dtor(_this);
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}
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/******************************************************************
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* ??4bad_typeid@@QAEAAV0@ABV0@@Z (MSVCRT.@)
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*/
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DEFINE_THISCALL_WRAPPER(MSVCRT_bad_typeid_opequals);
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bad_typeid * __stdcall MSVCRT_bad_typeid_opequals(bad_typeid * _this, const bad_typeid * rhs)
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{
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TRACE("(%p %p)\n", _this, rhs);
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MSVCRT_exception_opequals(_this, rhs);
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return _this;
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}
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/******************************************************************
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* ??_Ebad_typeid@@UAEPAXI@Z (MSVCRT.@)
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*/
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DEFINE_THISCALL_WRAPPER(MSVCRT_bad_typeid_vector_dtor);
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void * __stdcall MSVCRT_bad_typeid_vector_dtor(bad_typeid * _this, unsigned int flags)
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{
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TRACE("(%p %x)\n", _this, flags);
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if (flags & 2)
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{
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/* we have an array, with the number of elements stored before the first object */
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int i, *ptr = (int *)_this - 1;
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for (i = *ptr - 1; i >= 0; i--) MSVCRT_bad_typeid_dtor(_this + i);
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MSVCRT_operator_delete(ptr);
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}
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else
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{
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MSVCRT_bad_typeid_dtor(_this);
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if (flags & 1) MSVCRT_operator_delete(_this);
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}
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return _this;
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}
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/******************************************************************
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* ??_Gbad_typeid@@UAEPAXI@Z (MSVCRT.@)
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*/
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DEFINE_THISCALL_WRAPPER(MSVCRT_bad_typeid_scalar_dtor);
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void * __stdcall MSVCRT_bad_typeid_scalar_dtor(bad_typeid * _this, unsigned int flags)
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{
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TRACE("(%p %x)\n", _this, flags);
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MSVCRT_bad_typeid_dtor(_this);
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if (flags & 1) MSVCRT_operator_delete(_this);
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return _this;
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}
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/******************************************************************
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* ??0__non_rtti_object@@QAE@ABV0@@Z (MSVCRT.@)
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*/
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DEFINE_THISCALL_WRAPPER(MSVCRT___non_rtti_object_copy_ctor);
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__non_rtti_object * __stdcall MSVCRT___non_rtti_object_copy_ctor(__non_rtti_object * _this,
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const __non_rtti_object * rhs)
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{
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TRACE("(%p %p)\n", _this, rhs);
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MSVCRT_bad_typeid_copy_ctor(_this, rhs);
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_this->vtable = &MSVCRT___non_rtti_object_vtable;
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return _this;
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}
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/******************************************************************
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* ??0__non_rtti_object@@QAE@PBD@Z (MSVCRT.@)
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*/
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DEFINE_THISCALL_WRAPPER(MSVCRT___non_rtti_object_ctor);
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__non_rtti_object * __stdcall MSVCRT___non_rtti_object_ctor(__non_rtti_object * _this,
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const char * name)
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{
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TRACE("(%p %s)\n", _this, name);
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EXCEPTION_ctor(_this, &name);
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_this->vtable = &MSVCRT___non_rtti_object_vtable;
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return _this;
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}
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/******************************************************************
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* ??1__non_rtti_object@@UAE@XZ (MSVCRT.@)
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*/
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DEFINE_THISCALL_WRAPPER(MSVCRT___non_rtti_object_dtor);
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void __stdcall MSVCRT___non_rtti_object_dtor(__non_rtti_object * _this)
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{
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TRACE("(%p)\n", _this);
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MSVCRT_bad_typeid_dtor(_this);
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}
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/******************************************************************
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* ??4__non_rtti_object@@QAEAAV0@ABV0@@Z (MSVCRT.@)
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*/
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DEFINE_THISCALL_WRAPPER(MSVCRT___non_rtti_object_opequals);
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__non_rtti_object * __stdcall MSVCRT___non_rtti_object_opequals(__non_rtti_object * _this,
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const __non_rtti_object *rhs)
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{
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TRACE("(%p %p)\n", _this, rhs);
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MSVCRT_bad_typeid_opequals(_this, rhs);
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return _this;
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}
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/******************************************************************
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* ??_E__non_rtti_object@@UAEPAXI@Z (MSVCRT.@)
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*/
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DEFINE_THISCALL_WRAPPER(MSVCRT___non_rtti_object_vector_dtor);
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void * __stdcall MSVCRT___non_rtti_object_vector_dtor(__non_rtti_object * _this, unsigned int flags)
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{
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TRACE("(%p %x)\n", _this, flags);
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if (flags & 2)
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{
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/* we have an array, with the number of elements stored before the first object */
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int i, *ptr = (int *)_this - 1;
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for (i = *ptr - 1; i >= 0; i--) MSVCRT___non_rtti_object_dtor(_this + i);
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MSVCRT_operator_delete(ptr);
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}
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else
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{
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MSVCRT___non_rtti_object_dtor(_this);
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if (flags & 1) MSVCRT_operator_delete(_this);
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}
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return _this;
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}
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/******************************************************************
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* ??_G__non_rtti_object@@UAEPAXI@Z (MSVCRT.@)
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*/
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DEFINE_THISCALL_WRAPPER(MSVCRT___non_rtti_object_scalar_dtor);
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void * __stdcall MSVCRT___non_rtti_object_scalar_dtor(__non_rtti_object * _this, unsigned int flags)
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{
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TRACE("(%p %x)\n", _this, flags);
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MSVCRT___non_rtti_object_dtor(_this);
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if (flags & 1) MSVCRT_operator_delete(_this);
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return _this;
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}
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/******************************************************************
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* ??0bad_cast@@QAE@ABQBD@Z (MSVCRT.@)
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*/
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DEFINE_THISCALL_WRAPPER(MSVCRT_bad_cast_ctor);
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bad_cast * __stdcall MSVCRT_bad_cast_ctor(bad_cast * _this, const char ** name)
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{
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TRACE("(%p %s)\n", _this, *name);
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EXCEPTION_ctor(_this, name);
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_this->vtable = &MSVCRT_bad_cast_vtable;
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return _this;
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}
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/******************************************************************
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* ??0bad_cast@@QAE@ABV0@@Z (MSVCRT.@)
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*/
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DEFINE_THISCALL_WRAPPER(MSVCRT_bad_cast_copy_ctor);
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bad_cast * __stdcall MSVCRT_bad_cast_copy_ctor(bad_cast * _this, const bad_cast * rhs)
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{
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TRACE("(%p %p)\n", _this, rhs);
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MSVCRT_exception_copy_ctor(_this, rhs);
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_this->vtable = &MSVCRT_bad_cast_vtable;
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return _this;
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}
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/******************************************************************
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* ??1bad_cast@@UAE@XZ (MSVCRT.@)
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*/
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DEFINE_THISCALL_WRAPPER(MSVCRT_bad_cast_dtor);
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void __stdcall MSVCRT_bad_cast_dtor(bad_cast * _this)
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{
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TRACE("(%p)\n", _this);
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MSVCRT_exception_dtor(_this);
|
|
}
|
|
|
|
/******************************************************************
|
|
* ??4bad_cast@@QAEAAV0@ABV0@@Z (MSVCRT.@)
|
|
*/
|
|
DEFINE_THISCALL_WRAPPER(MSVCRT_bad_cast_opequals);
|
|
bad_cast * __stdcall MSVCRT_bad_cast_opequals(bad_cast * _this, const bad_cast * rhs)
|
|
{
|
|
TRACE("(%p %p)\n", _this, rhs);
|
|
MSVCRT_exception_opequals(_this, rhs);
|
|
return _this;
|
|
}
|
|
|
|
/******************************************************************
|
|
* ??_Ebad_cast@@UAEPAXI@Z (MSVCRT.@)
|
|
*/
|
|
DEFINE_THISCALL_WRAPPER(MSVCRT_bad_cast_vector_dtor);
|
|
void * __stdcall MSVCRT_bad_cast_vector_dtor(bad_cast * _this, unsigned int flags)
|
|
{
|
|
TRACE("(%p %x)\n", _this, flags);
|
|
if (flags & 2)
|
|
{
|
|
/* we have an array, with the number of elements stored before the first object */
|
|
int i, *ptr = (int *)_this - 1;
|
|
|
|
for (i = *ptr - 1; i >= 0; i--) MSVCRT_bad_cast_dtor(_this + i);
|
|
MSVCRT_operator_delete(ptr);
|
|
}
|
|
else
|
|
{
|
|
MSVCRT_bad_cast_dtor(_this);
|
|
if (flags & 1) MSVCRT_operator_delete(_this);
|
|
}
|
|
return _this;
|
|
}
|
|
|
|
/******************************************************************
|
|
* ??_Gbad_cast@@UAEPAXI@Z (MSVCRT.@)
|
|
*/
|
|
DEFINE_THISCALL_WRAPPER(MSVCRT_bad_cast_scalar_dtor);
|
|
void * __stdcall MSVCRT_bad_cast_scalar_dtor(bad_cast * _this, unsigned int flags)
|
|
{
|
|
TRACE("(%p %x)\n", _this, flags);
|
|
MSVCRT_bad_cast_dtor(_this);
|
|
if (flags & 1) MSVCRT_operator_delete(_this);
|
|
return _this;
|
|
}
|
|
|
|
/******************************************************************
|
|
* ??8type_info@@QBEHABV0@@Z (MSVCRT.@)
|
|
*/
|
|
DEFINE_THISCALL_WRAPPER(MSVCRT_type_info_opequals_equals);
|
|
int __stdcall MSVCRT_type_info_opequals_equals(type_info * _this, const type_info * rhs)
|
|
{
|
|
int ret = !strcmp(_this->mangled + 1, rhs->mangled + 1);
|
|
TRACE("(%p %p) returning %d\n", _this, rhs, ret);
|
|
return ret;
|
|
}
|
|
|
|
/******************************************************************
|
|
* ??9type_info@@QBEHABV0@@Z (MSVCRT.@)
|
|
*/
|
|
DEFINE_THISCALL_WRAPPER(MSVCRT_type_info_opnot_equals);
|
|
int __stdcall MSVCRT_type_info_opnot_equals(type_info * _this, const type_info * rhs)
|
|
{
|
|
int ret = !!strcmp(_this->mangled + 1, rhs->mangled + 1);
|
|
TRACE("(%p %p) returning %d\n", _this, rhs, ret);
|
|
return ret;
|
|
}
|
|
|
|
/******************************************************************
|
|
* ?before@type_info@@QBEHABV1@@Z (MSVCRT.@)
|
|
*/
|
|
DEFINE_THISCALL_WRAPPER(MSVCRT_type_info_before);
|
|
int __stdcall MSVCRT_type_info_before(type_info * _this, const type_info * rhs)
|
|
{
|
|
int ret = strcmp(_this->mangled + 1, rhs->mangled + 1) < 0;
|
|
TRACE("(%p %p) returning %d\n", _this, rhs, ret);
|
|
return ret;
|
|
}
|
|
|
|
/******************************************************************
|
|
* ??1type_info@@UAE@XZ (MSVCRT.@)
|
|
*/
|
|
DEFINE_THISCALL_WRAPPER(MSVCRT_type_info_dtor);
|
|
void __stdcall MSVCRT_type_info_dtor(type_info * _this)
|
|
{
|
|
TRACE("(%p)\n", _this);
|
|
if (_this->name)
|
|
MSVCRT_free(_this->name);
|
|
}
|
|
|
|
/******************************************************************
|
|
* ?name@type_info@@QBEPBDXZ (MSVCRT.@)
|
|
*/
|
|
DEFINE_THISCALL_WRAPPER(MSVCRT_type_info_name);
|
|
const char * __stdcall MSVCRT_type_info_name(type_info * _this)
|
|
{
|
|
if (!_this->name)
|
|
{
|
|
/* Create and set the demangled name */
|
|
/* Nota: mangled name in type_info struct always start with a '.', while
|
|
* it isn't valid for mangled name.
|
|
* Is this '.' really part of the mangled name, or has it some other meaning ?
|
|
*/
|
|
char* name = __unDName(0, _this->mangled + 1, 0,
|
|
MSVCRT_malloc, MSVCRT_free, 0x2800);
|
|
|
|
if (name)
|
|
{
|
|
unsigned int len = strlen(name);
|
|
|
|
/* It seems _unDName may leave blanks at the end of the demangled name */
|
|
while (len && name[--len] == ' ')
|
|
name[len] = '\0';
|
|
|
|
_mlock(_EXIT_LOCK2);
|
|
|
|
if (_this->name)
|
|
{
|
|
/* Another thread set this member since we checked above - use it */
|
|
MSVCRT_free(name);
|
|
}
|
|
else
|
|
_this->name = name;
|
|
|
|
_munlock(_EXIT_LOCK2);
|
|
}
|
|
}
|
|
TRACE("(%p) returning %s\n", _this, _this->name);
|
|
return _this->name;
|
|
}
|
|
|
|
/******************************************************************
|
|
* ?raw_name@type_info@@QBEPBDXZ (MSVCRT.@)
|
|
*/
|
|
DEFINE_THISCALL_WRAPPER(MSVCRT_type_info_raw_name);
|
|
const char * __stdcall MSVCRT_type_info_raw_name(type_info * _this)
|
|
{
|
|
TRACE("(%p) returning %s\n", _this, _this->mangled);
|
|
return _this->mangled;
|
|
}
|
|
|
|
/* Unexported */
|
|
DEFINE_THISCALL_WRAPPER(MSVCRT_type_info_vector_dtor);
|
|
void * __stdcall MSVCRT_type_info_vector_dtor(type_info * _this, unsigned int flags)
|
|
{
|
|
TRACE("(%p %x)\n", _this, flags);
|
|
if (flags & 2)
|
|
{
|
|
/* we have an array, with the number of elements stored before the first object */
|
|
int i, *ptr = (int *)_this - 1;
|
|
|
|
for (i = *ptr - 1; i >= 0; i--) MSVCRT_type_info_dtor(_this + i);
|
|
MSVCRT_operator_delete(ptr);
|
|
}
|
|
else
|
|
{
|
|
MSVCRT_type_info_dtor(_this);
|
|
if (flags & 1) MSVCRT_operator_delete(_this);
|
|
}
|
|
return _this;
|
|
}
|
|
|
|
/* vtables */
|
|
|
|
#define __ASM_VTABLE(name,funcs) \
|
|
__asm__(".data\n" \
|
|
"\t.align 4\n" \
|
|
"\t.long " __ASM_NAME(#name "_rtti") "\n" \
|
|
"\t.globl " __ASM_NAME("MSVCRT_" #name "_vtable") "\n" \
|
|
__ASM_NAME("MSVCRT_" #name "_vtable") ":\n" \
|
|
"\t.long " THISCALL_NAME(MSVCRT_ ## name ## _vector_dtor) "\n" \
|
|
funcs "\n\t.text");
|
|
|
|
#define __ASM_EXCEPTION_VTABLE(name) \
|
|
__ASM_VTABLE(name, "\t.long " THISCALL_NAME(MSVCRT_what_exception) );
|
|
|
|
#ifndef __GNUC__
|
|
void __asm_dummy_vtables(void) {
|
|
#endif
|
|
|
|
__ASM_VTABLE(type_info,"");
|
|
__ASM_EXCEPTION_VTABLE(exception);
|
|
__ASM_EXCEPTION_VTABLE(bad_typeid);
|
|
__ASM_EXCEPTION_VTABLE(bad_cast);
|
|
__ASM_EXCEPTION_VTABLE(__non_rtti_object);
|
|
|
|
#ifndef __GNUC__
|
|
}
|
|
#endif
|
|
|
|
/* Static RTTI for exported objects */
|
|
|
|
static const type_info exception_type_info =
|
|
{
|
|
&MSVCRT_type_info_vtable,
|
|
NULL,
|
|
".?AVexception@@"
|
|
};
|
|
|
|
static const rtti_base_descriptor exception_rtti_base_descriptor =
|
|
{
|
|
&exception_type_info,
|
|
0,
|
|
{ 0, -1, 0 },
|
|
0
|
|
};
|
|
|
|
static const rtti_base_array exception_rtti_base_array =
|
|
{
|
|
{
|
|
&exception_rtti_base_descriptor,
|
|
NULL,
|
|
NULL
|
|
}
|
|
};
|
|
|
|
static const rtti_object_hierarchy exception_type_hierarchy =
|
|
{
|
|
0,
|
|
0,
|
|
1,
|
|
&exception_rtti_base_array
|
|
};
|
|
|
|
const rtti_object_locator exception_rtti =
|
|
{
|
|
0,
|
|
0,
|
|
0,
|
|
&exception_type_info,
|
|
&exception_type_hierarchy
|
|
};
|
|
|
|
static const cxx_type_info exception_cxx_type_info =
|
|
{
|
|
0,
|
|
&exception_type_info,
|
|
{ 0, -1, 0 },
|
|
sizeof(exception),
|
|
(cxx_copy_ctor)THISCALL(MSVCRT_exception_copy_ctor)
|
|
};
|
|
|
|
static const type_info bad_typeid_type_info =
|
|
{
|
|
&MSVCRT_type_info_vtable,
|
|
NULL,
|
|
".?AVbad_typeid@@"
|
|
};
|
|
|
|
static const rtti_base_descriptor bad_typeid_rtti_base_descriptor =
|
|
{
|
|
&bad_typeid_type_info,
|
|
1,
|
|
{ 0, -1, 0 },
|
|
0
|
|
};
|
|
|
|
static const rtti_base_array bad_typeid_rtti_base_array =
|
|
{
|
|
{
|
|
&bad_typeid_rtti_base_descriptor,
|
|
&exception_rtti_base_descriptor,
|
|
NULL
|
|
}
|
|
};
|
|
|
|
static const rtti_object_hierarchy bad_typeid_type_hierarchy =
|
|
{
|
|
0,
|
|
0,
|
|
2,
|
|
&bad_typeid_rtti_base_array
|
|
};
|
|
|
|
const rtti_object_locator bad_typeid_rtti =
|
|
{
|
|
0,
|
|
0,
|
|
0,
|
|
&bad_typeid_type_info,
|
|
&bad_typeid_type_hierarchy
|
|
};
|
|
|
|
static const cxx_type_info bad_typeid_cxx_type_info =
|
|
{
|
|
0,
|
|
&bad_typeid_type_info,
|
|
{ 0, -1, 0 },
|
|
sizeof(exception),
|
|
(cxx_copy_ctor)THISCALL(MSVCRT_bad_typeid_copy_ctor)
|
|
};
|
|
|
|
static const type_info bad_cast_type_info =
|
|
{
|
|
&MSVCRT_type_info_vtable,
|
|
NULL,
|
|
".?AVbad_cast@@"
|
|
};
|
|
|
|
static const rtti_base_descriptor bad_cast_rtti_base_descriptor =
|
|
{
|
|
&bad_cast_type_info,
|
|
1,
|
|
{ 0, -1, 0 },
|
|
0
|
|
};
|
|
|
|
static const rtti_base_array bad_cast_rtti_base_array =
|
|
{
|
|
{
|
|
&bad_cast_rtti_base_descriptor,
|
|
&exception_rtti_base_descriptor,
|
|
NULL
|
|
}
|
|
};
|
|
|
|
static const rtti_object_hierarchy bad_cast_type_hierarchy =
|
|
{
|
|
0,
|
|
0,
|
|
2,
|
|
&bad_cast_rtti_base_array
|
|
};
|
|
|
|
const rtti_object_locator bad_cast_rtti =
|
|
{
|
|
0,
|
|
0,
|
|
0,
|
|
&bad_cast_type_info,
|
|
&bad_cast_type_hierarchy
|
|
};
|
|
|
|
static const cxx_type_info bad_cast_cxx_type_info =
|
|
{
|
|
0,
|
|
&bad_cast_type_info,
|
|
{ 0, -1, 0 },
|
|
sizeof(exception),
|
|
(cxx_copy_ctor)THISCALL(MSVCRT_bad_cast_copy_ctor)
|
|
};
|
|
|
|
static const type_info __non_rtti_object_type_info =
|
|
{
|
|
&MSVCRT_type_info_vtable,
|
|
NULL,
|
|
".?AV__non_rtti_object@@"
|
|
};
|
|
|
|
static const rtti_base_descriptor __non_rtti_object_rtti_base_descriptor =
|
|
{
|
|
&__non_rtti_object_type_info,
|
|
2,
|
|
{ 0, -1, 0 },
|
|
0
|
|
};
|
|
|
|
static const rtti_base_array __non_rtti_object_rtti_base_array =
|
|
{
|
|
{
|
|
&__non_rtti_object_rtti_base_descriptor,
|
|
&bad_typeid_rtti_base_descriptor,
|
|
&exception_rtti_base_descriptor
|
|
}
|
|
};
|
|
|
|
static const rtti_object_hierarchy __non_rtti_object_type_hierarchy =
|
|
{
|
|
0,
|
|
0,
|
|
3,
|
|
&__non_rtti_object_rtti_base_array
|
|
};
|
|
|
|
const rtti_object_locator __non_rtti_object_rtti =
|
|
{
|
|
0,
|
|
0,
|
|
0,
|
|
&__non_rtti_object_type_info,
|
|
&__non_rtti_object_type_hierarchy
|
|
};
|
|
|
|
static const cxx_type_info __non_rtti_object_cxx_type_info =
|
|
{
|
|
0,
|
|
&__non_rtti_object_type_info,
|
|
{ 0, -1, 0 },
|
|
sizeof(exception),
|
|
(cxx_copy_ctor)THISCALL(MSVCRT___non_rtti_object_copy_ctor)
|
|
};
|
|
|
|
static const type_info type_info_type_info =
|
|
{
|
|
&MSVCRT_type_info_vtable,
|
|
NULL,
|
|
".?AVtype_info@@"
|
|
};
|
|
|
|
static const rtti_base_descriptor type_info_rtti_base_descriptor =
|
|
{
|
|
&type_info_type_info,
|
|
0,
|
|
{ 0, -1, 0 },
|
|
0
|
|
};
|
|
|
|
static const rtti_base_array type_info_rtti_base_array =
|
|
{
|
|
{
|
|
&type_info_rtti_base_descriptor,
|
|
NULL,
|
|
NULL
|
|
}
|
|
};
|
|
|
|
static const rtti_object_hierarchy type_info_type_hierarchy =
|
|
{
|
|
0,
|
|
0,
|
|
1,
|
|
&type_info_rtti_base_array
|
|
};
|
|
|
|
const rtti_object_locator type_info_rtti =
|
|
{
|
|
0,
|
|
0,
|
|
0,
|
|
&type_info_type_info,
|
|
&type_info_type_hierarchy
|
|
};
|
|
|
|
/*
|
|
* Exception RTTI for cpp objects
|
|
*/
|
|
static const cxx_type_info_table bad_cast_type_info_table =
|
|
{
|
|
3,
|
|
{
|
|
&__non_rtti_object_cxx_type_info,
|
|
&bad_typeid_cxx_type_info,
|
|
&exception_cxx_type_info
|
|
}
|
|
};
|
|
|
|
static const cxx_exception_type bad_cast_exception_type =
|
|
{
|
|
0,
|
|
(void*)THISCALL(MSVCRT_bad_cast_dtor),
|
|
NULL,
|
|
&bad_cast_type_info_table
|
|
};
|
|
|
|
static const cxx_type_info_table bad_typeid_type_info_table =
|
|
{
|
|
2,
|
|
{
|
|
&bad_cast_cxx_type_info,
|
|
&exception_cxx_type_info,
|
|
NULL
|
|
}
|
|
};
|
|
|
|
static const cxx_exception_type bad_typeid_exception_type =
|
|
{
|
|
0,
|
|
(void*)THISCALL(MSVCRT_bad_typeid_dtor),
|
|
NULL,
|
|
&bad_cast_type_info_table
|
|
};
|
|
|
|
static const cxx_exception_type __non_rtti_object_exception_type =
|
|
{
|
|
0,
|
|
(void*)THISCALL(MSVCRT___non_rtti_object_dtor),
|
|
NULL,
|
|
&bad_typeid_type_info_table
|
|
};
|
|
|
|
|
|
/******************************************************************
|
|
* ?set_terminate@@YAP6AXXZP6AXXZ@Z (MSVCRT.@)
|
|
*
|
|
* Install a handler to be called when terminate() is called.
|
|
*
|
|
* PARAMS
|
|
* func [I] Handler function to install
|
|
*
|
|
* RETURNS
|
|
* The previously installed handler function, if any.
|
|
*/
|
|
MSVCRT_terminate_function MSVCRT_set_terminate(MSVCRT_terminate_function func)
|
|
{
|
|
thread_data_t *data = msvcrt_get_thread_data();
|
|
MSVCRT_terminate_function previous = data->terminate_handler;
|
|
TRACE("(%p) returning %p\n",func,previous);
|
|
data->terminate_handler = func;
|
|
return previous;
|
|
}
|
|
|
|
/******************************************************************
|
|
* ?set_unexpected@@YAP6AXXZP6AXXZ@Z (MSVCRT.@)
|
|
*
|
|
* Install a handler to be called when unexpected() is called.
|
|
*
|
|
* PARAMS
|
|
* func [I] Handler function to install
|
|
*
|
|
* RETURNS
|
|
* The previously installed handler function, if any.
|
|
*/
|
|
MSVCRT_unexpected_function MSVCRT_set_unexpected(MSVCRT_unexpected_function func)
|
|
{
|
|
thread_data_t *data = msvcrt_get_thread_data();
|
|
MSVCRT_unexpected_function previous = data->unexpected_handler;
|
|
TRACE("(%p) returning %p\n",func,previous);
|
|
data->unexpected_handler = func;
|
|
return previous;
|
|
}
|
|
|
|
/******************************************************************
|
|
* ?_set_se_translator@@YAP6AXIPAU_EXCEPTION_POINTERS@@@ZP6AXI0@Z@Z (MSVCRT.@)
|
|
*/
|
|
MSVCRT__se_translator_function MSVCRT__set_se_translator(MSVCRT__se_translator_function func)
|
|
{
|
|
thread_data_t *data = msvcrt_get_thread_data();
|
|
MSVCRT__se_translator_function previous = data->se_translator;
|
|
TRACE("(%p) returning %p\n",func,previous);
|
|
data->se_translator = func;
|
|
return previous;
|
|
}
|
|
|
|
/******************************************************************
|
|
* ?terminate@@YAXXZ (MSVCRT.@)
|
|
*
|
|
* Default handler for an unhandled exception.
|
|
*
|
|
* PARAMS
|
|
* None.
|
|
*
|
|
* RETURNS
|
|
* This function does not return. Either control resumes from any
|
|
* handler installed by calling set_terminate(), or (by default) abort()
|
|
* is called.
|
|
*/
|
|
void MSVCRT_terminate(void)
|
|
{
|
|
thread_data_t *data = msvcrt_get_thread_data();
|
|
if (data->terminate_handler) data->terminate_handler();
|
|
MSVCRT_abort();
|
|
}
|
|
|
|
/******************************************************************
|
|
* ?unexpected@@YAXXZ (MSVCRT.@)
|
|
*/
|
|
void MSVCRT_unexpected(void)
|
|
{
|
|
thread_data_t *data = msvcrt_get_thread_data();
|
|
if (data->unexpected_handler) data->unexpected_handler();
|
|
MSVCRT_terminate();
|
|
}
|
|
|
|
|
|
/******************************************************************
|
|
* __RTtypeid (MSVCRT.@)
|
|
*
|
|
* Retrieve the Run Time Type Information (RTTI) for a C++ object.
|
|
*
|
|
* PARAMS
|
|
* cppobj [I] C++ object to get type information for.
|
|
*
|
|
* RETURNS
|
|
* Success: A type_info object describing cppobj.
|
|
* Failure: If the object to be cast has no RTTI, a __non_rtti_object
|
|
* exception is thrown. If cppobj is NULL, a bad_typeid exception
|
|
* is thrown. In either case, this function does not return.
|
|
*
|
|
* NOTES
|
|
* This function is usually called by compiler generated code as a result
|
|
* of using one of the C++ dynamic cast statements.
|
|
*/
|
|
const type_info* MSVCRT___RTtypeid(void *cppobj)
|
|
{
|
|
const type_info *ret;
|
|
|
|
if (!cppobj)
|
|
{
|
|
bad_typeid e;
|
|
MSVCRT_bad_typeid_ctor( &e, "Attempted a typeid of NULL pointer!" );
|
|
_CxxThrowException( &e, &bad_typeid_exception_type );
|
|
return NULL;
|
|
}
|
|
|
|
__TRY
|
|
{
|
|
const rtti_object_locator *obj_locator = get_obj_locator( cppobj );
|
|
ret = obj_locator->type_descriptor;
|
|
}
|
|
__EXCEPT(page_fault)
|
|
{
|
|
__non_rtti_object e;
|
|
MSVCRT___non_rtti_object_ctor( &e, "Bad read pointer - no RTTI data!" );
|
|
_CxxThrowException( &e, &bad_typeid_exception_type );
|
|
return NULL;
|
|
}
|
|
__ENDTRY
|
|
return ret;
|
|
}
|
|
|
|
/******************************************************************
|
|
* __RTDynamicCast (MSVCRT.@)
|
|
*
|
|
* Dynamically cast a C++ object to one of its base classes.
|
|
*
|
|
* PARAMS
|
|
* cppobj [I] Any C++ object to cast
|
|
* unknown [I] Reserved, set to 0
|
|
* src [I] type_info object describing cppobj
|
|
* dst [I] type_info object describing the base class to cast to
|
|
* do_throw [I] TRUE = throw an exception if the cast fails, FALSE = don't
|
|
*
|
|
* RETURNS
|
|
* Success: The address of cppobj, cast to the object described by dst.
|
|
* Failure: NULL, If the object to be cast has no RTTI, or dst is not a
|
|
* valid cast for cppobj. If do_throw is TRUE, a bad_cast exception
|
|
* is thrown and this function does not return.
|
|
*
|
|
* NOTES
|
|
* This function is usually called by compiler generated code as a result
|
|
* of using one of the C++ dynamic cast statements.
|
|
*/
|
|
void* MSVCRT___RTDynamicCast(void *cppobj, int unknown,
|
|
type_info *src, type_info *dst,
|
|
int do_throw)
|
|
{
|
|
void *ret;
|
|
|
|
if (!cppobj) return NULL;
|
|
|
|
TRACE("obj: %p unknown: %d src: %p %s dst: %p %s do_throw: %d)\n",
|
|
cppobj, unknown, src, dbgstr_type_info(src), dst, dbgstr_type_info(dst), do_throw);
|
|
|
|
if (unknown) FIXME("Unknown parameter is non-zero: please report\n");
|
|
|
|
/* To cast an object at runtime:
|
|
* 1.Find out the true type of the object from the typeinfo at vtable[-1]
|
|
* 2.Search for the destination type in the class hierarchy
|
|
* 3.If destination type is found, return base object address + dest offset
|
|
* Otherwise, fail the cast
|
|
*/
|
|
__TRY
|
|
{
|
|
int i;
|
|
const rtti_object_locator *obj_locator = get_obj_locator( cppobj );
|
|
const rtti_object_hierarchy *obj_bases = obj_locator->type_hierarchy;
|
|
const rtti_base_descriptor * const* base_desc = obj_bases->base_classes->bases;
|
|
|
|
if (TRACE_ON(msvcrt)) dump_obj_locator(obj_locator);
|
|
|
|
ret = NULL;
|
|
for (i = 0; i < obj_bases->array_len; i++)
|
|
{
|
|
const type_info *typ = base_desc[i]->type_descriptor;
|
|
|
|
if (!strcmp(typ->mangled, dst->mangled))
|
|
{
|
|
/* compute the correct this pointer for that base class */
|
|
void *this_ptr = (char *)cppobj - obj_locator->base_class_offset;
|
|
ret = get_this_pointer( &base_desc[i]->offsets, this_ptr );
|
|
break;
|
|
}
|
|
}
|
|
/* VC++ sets do_throw to 1 when the result of a dynamic_cast is assigned
|
|
* to a reference, since references cannot be NULL.
|
|
*/
|
|
if (!ret && do_throw)
|
|
{
|
|
const char *msg = "Bad dynamic_cast!";
|
|
bad_cast e;
|
|
MSVCRT_bad_cast_ctor( &e, &msg );
|
|
_CxxThrowException( &e, &bad_cast_exception_type );
|
|
}
|
|
}
|
|
__EXCEPT(page_fault)
|
|
{
|
|
__non_rtti_object e;
|
|
MSVCRT___non_rtti_object_ctor( &e, "Access violation - no RTTI data!" );
|
|
_CxxThrowException( &e, &bad_typeid_exception_type );
|
|
return NULL;
|
|
}
|
|
__ENDTRY
|
|
return ret;
|
|
}
|
|
|
|
|
|
/******************************************************************
|
|
* __RTCastToVoid (MSVCRT.@)
|
|
*
|
|
* Dynamically cast a C++ object to a void*.
|
|
*
|
|
* PARAMS
|
|
* cppobj [I] The C++ object to cast
|
|
*
|
|
* RETURNS
|
|
* Success: The base address of the object as a void*.
|
|
* Failure: NULL, if cppobj is NULL or has no RTTI.
|
|
*
|
|
* NOTES
|
|
* This function is usually called by compiler generated code as a result
|
|
* of using one of the C++ dynamic cast statements.
|
|
*/
|
|
void* MSVCRT___RTCastToVoid(void *cppobj)
|
|
{
|
|
void *ret;
|
|
|
|
if (!cppobj) return NULL;
|
|
|
|
__TRY
|
|
{
|
|
const rtti_object_locator *obj_locator = get_obj_locator( cppobj );
|
|
ret = (char *)cppobj - obj_locator->base_class_offset;
|
|
}
|
|
__EXCEPT(page_fault)
|
|
{
|
|
__non_rtti_object e;
|
|
MSVCRT___non_rtti_object_ctor( &e, "Access violation - no RTTI data!" );
|
|
_CxxThrowException( &e, &bad_typeid_exception_type );
|
|
return NULL;
|
|
}
|
|
__ENDTRY
|
|
return ret;
|
|
}
|