/* * msvcrt.dll C++ objects * * Copyright 2000 Jon Griffiths * Copyright 2003, 2004 Alexandre Julliard * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA */ #include "config.h" #include "wine/port.h" #include #include "windef.h" #include "winternl.h" #include "wine/exception.h" #include "wine/debug.h" #include "msvcrt.h" #include "cppexcept.h" #include "mtdll.h" #include "cxx.h" WINE_DEFAULT_DEBUG_CHANNEL(msvcrt); struct __type_info_node { void *memPtr; struct __type_info_node* next; }; typedef exception bad_cast; typedef exception bad_typeid; typedef exception __non_rtti_object; extern const vtable_ptr MSVCRT_exception_vtable; extern const vtable_ptr MSVCRT_bad_typeid_vtable; extern const vtable_ptr MSVCRT_bad_cast_vtable; extern const vtable_ptr MSVCRT___non_rtti_object_vtable; extern const vtable_ptr MSVCRT_type_info_vtable; /* get the vtable pointer for a C++ object */ static inline const vtable_ptr *get_vtable( void *obj ) { return *(const vtable_ptr **)obj; } static inline const rtti_object_locator *get_obj_locator( void *cppobj ) { const vtable_ptr *vtable = get_vtable( cppobj ); return (const rtti_object_locator *)vtable[-1]; } #ifndef __x86_64__ static void dump_obj_locator( const rtti_object_locator *ptr ) { int i; const rtti_object_hierarchy *h = ptr->type_hierarchy; TRACE( "%p: sig=%08x base_offset=%08x flags=%08x type=%p %s hierarchy=%p\n", ptr, ptr->signature, ptr->base_class_offset, ptr->flags, ptr->type_descriptor, dbgstr_type_info(ptr->type_descriptor), ptr->type_hierarchy ); TRACE( " hierarchy: sig=%08x attr=%08x len=%d base classes=%p\n", h->signature, h->attributes, h->array_len, h->base_classes ); for (i = 0; i < h->array_len; i++) { TRACE( " base class %p: num %d off %d,%d,%d attr %08x type %p %s\n", h->base_classes->bases[i], h->base_classes->bases[i]->num_base_classes, h->base_classes->bases[i]->offsets.this_offset, h->base_classes->bases[i]->offsets.vbase_descr, h->base_classes->bases[i]->offsets.vbase_offset, h->base_classes->bases[i]->attributes, h->base_classes->bases[i]->type_descriptor, dbgstr_type_info(h->base_classes->bases[i]->type_descriptor) ); } } #else static void dump_obj_locator( const rtti_object_locator *ptr ) { int i; char *base = ptr->signature == 0 ? RtlPcToFileHeader((void*)ptr, (void**)&base) : (char*)ptr - ptr->object_locator; const rtti_object_hierarchy *h = (const rtti_object_hierarchy*)(base + ptr->type_hierarchy); const type_info *type_descriptor = (const type_info*)(base + ptr->type_descriptor); TRACE( "%p: sig=%08x base_offset=%08x flags=%08x type=%p %s hierarchy=%p\n", ptr, ptr->signature, ptr->base_class_offset, ptr->flags, type_descriptor, dbgstr_type_info(type_descriptor), h ); TRACE( " hierarchy: sig=%08x attr=%08x len=%d base classes=%p\n", h->signature, h->attributes, h->array_len, base + h->base_classes ); for (i = 0; i < h->array_len; i++) { const rtti_base_descriptor *bases = (rtti_base_descriptor*)(base + ((const rtti_base_array*)(base + h->base_classes))->bases[i]); TRACE( " base class %p: num %d off %d,%d,%d attr %08x type %p %s\n", bases, bases->num_base_classes, bases->offsets.this_offset, bases->offsets.vbase_descr, bases->offsets.vbase_offset, bases->attributes, base + bases->type_descriptor, dbgstr_type_info((const type_info*)(base + bases->type_descriptor)) ); } } #endif /* Internal common ctor for exception */ static void EXCEPTION_ctor(exception *_this, const char** name) { _this->vtable = &MSVCRT_exception_vtable; if (*name) { unsigned int name_len = strlen(*name) + 1; _this->name = MSVCRT_malloc(name_len); memcpy(_this->name, *name, name_len); _this->do_free = TRUE; } else { _this->name = NULL; _this->do_free = FALSE; } } /****************************************************************** * ??0exception@@QAE@ABQBD@Z (MSVCRT.@) */ DEFINE_THISCALL_WRAPPER(MSVCRT_exception_ctor,8) exception * __thiscall MSVCRT_exception_ctor(exception * _this, const char ** name) { TRACE("(%p,%s)\n", _this, *name); EXCEPTION_ctor(_this, name); return _this; } /****************************************************************** * ??0exception@@QAE@ABQBDH@Z (MSVCRT.@) */ DEFINE_THISCALL_WRAPPER(MSVCRT_exception_ctor_noalloc,12) exception * __thiscall MSVCRT_exception_ctor_noalloc(exception * _this, char ** name, int noalloc) { TRACE("(%p,%s)\n", _this, *name); _this->vtable = &MSVCRT_exception_vtable; _this->name = *name; _this->do_free = FALSE; return _this; } /****************************************************************** * ??0exception@@QAE@ABV0@@Z (MSVCRT.@) */ DEFINE_THISCALL_WRAPPER(MSVCRT_exception_copy_ctor,8) exception * __thiscall MSVCRT_exception_copy_ctor(exception * _this, const exception * rhs) { TRACE("(%p,%p)\n", _this, rhs); if (!rhs->do_free) { _this->vtable = &MSVCRT_exception_vtable; _this->name = rhs->name; _this->do_free = FALSE; } else EXCEPTION_ctor(_this, (const char**)&rhs->name); TRACE("name = %s\n", _this->name); return _this; } /****************************************************************** * ??0exception@@QAE@XZ (MSVCRT.@) */ DEFINE_THISCALL_WRAPPER(MSVCRT_exception_default_ctor,4) exception * __thiscall MSVCRT_exception_default_ctor(exception * _this) { static const char* empty = NULL; TRACE("(%p)\n", _this); EXCEPTION_ctor(_this, &empty); return _this; } /****************************************************************** * ??1exception@@UAE@XZ (MSVCRT.@) */ DEFINE_THISCALL_WRAPPER(MSVCRT_exception_dtor,4) void __thiscall MSVCRT_exception_dtor(exception * _this) { TRACE("(%p)\n", _this); _this->vtable = &MSVCRT_exception_vtable; if (_this->do_free) MSVCRT_free(_this->name); } /****************************************************************** * ??4exception@@QAEAAV0@ABV0@@Z (MSVCRT.@) */ DEFINE_THISCALL_WRAPPER(MSVCRT_exception_opequals,8) exception * __thiscall MSVCRT_exception_opequals(exception * _this, const exception * rhs) { TRACE("(%p %p)\n", _this, rhs); if (_this != rhs) { MSVCRT_exception_dtor(_this); MSVCRT_exception_copy_ctor(_this, rhs); } TRACE("name = %s\n", _this->name); return _this; } /****************************************************************** * ??_Eexception@@UAEPAXI@Z (MSVCRT.@) */ DEFINE_THISCALL_WRAPPER(MSVCRT_exception_vector_dtor,8) void * __thiscall MSVCRT_exception_vector_dtor(exception * _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_PTR i, *ptr = (INT_PTR *)_this - 1; for (i = *ptr - 1; i >= 0; i--) MSVCRT_exception_dtor(_this + i); MSVCRT_operator_delete(ptr); } else { MSVCRT_exception_dtor(_this); if (flags & 1) MSVCRT_operator_delete(_this); } return _this; } /****************************************************************** * ??_Gexception@@UAEPAXI@Z (MSVCRT.@) */ DEFINE_THISCALL_WRAPPER(MSVCRT_exception_scalar_dtor,8) void * __thiscall MSVCRT_exception_scalar_dtor(exception * _this, unsigned int flags) { TRACE("(%p %x)\n", _this, flags); MSVCRT_exception_dtor(_this); if (flags & 1) MSVCRT_operator_delete(_this); return _this; } /****************************************************************** * ?what@exception@@UBEPBDXZ (MSVCRT.@) */ DEFINE_THISCALL_WRAPPER(MSVCRT_what_exception,4) const char * __thiscall MSVCRT_what_exception(exception * _this) { TRACE("(%p) returning %s\n", _this, _this->name); return _this->name ? _this->name : "Unknown exception"; } /****************************************************************** * ??0bad_typeid@@QAE@ABV0@@Z (MSVCRT.@) */ DEFINE_THISCALL_WRAPPER(MSVCRT_bad_typeid_copy_ctor,8) bad_typeid * __thiscall MSVCRT_bad_typeid_copy_ctor(bad_typeid * _this, const bad_typeid * rhs) { TRACE("(%p %p)\n", _this, rhs); MSVCRT_exception_copy_ctor(_this, rhs); _this->vtable = &MSVCRT_bad_typeid_vtable; return _this; } /****************************************************************** * ??0bad_typeid@@QAE@PBD@Z (MSVCRT.@) */ DEFINE_THISCALL_WRAPPER(MSVCRT_bad_typeid_ctor,8) bad_typeid * __thiscall MSVCRT_bad_typeid_ctor(bad_typeid * _this, const char * name) { TRACE("(%p %s)\n", _this, name); EXCEPTION_ctor(_this, &name); _this->vtable = &MSVCRT_bad_typeid_vtable; return _this; } /****************************************************************** * ??_Fbad_typeid@@QAEXXZ (MSVCRT.@) */ DEFINE_THISCALL_WRAPPER(MSVCRT_bad_typeid_default_ctor,4) bad_typeid * __thiscall MSVCRT_bad_typeid_default_ctor(bad_typeid * _this) { return MSVCRT_bad_typeid_ctor( _this, "bad typeid" ); } /****************************************************************** * ??1bad_typeid@@UAE@XZ (MSVCRT.@) */ DEFINE_THISCALL_WRAPPER(MSVCRT_bad_typeid_dtor,4) void __thiscall MSVCRT_bad_typeid_dtor(bad_typeid * _this) { TRACE("(%p)\n", _this); MSVCRT_exception_dtor(_this); } /****************************************************************** * ??4bad_typeid@@QAEAAV0@ABV0@@Z (MSVCRT.@) */ DEFINE_THISCALL_WRAPPER(MSVCRT_bad_typeid_opequals,8) bad_typeid * __thiscall MSVCRT_bad_typeid_opequals(bad_typeid * _this, const bad_typeid * rhs) { TRACE("(%p %p)\n", _this, rhs); MSVCRT_exception_opequals(_this, rhs); return _this; } /****************************************************************** * ??_Ebad_typeid@@UAEPAXI@Z (MSVCRT.@) */ DEFINE_THISCALL_WRAPPER(MSVCRT_bad_typeid_vector_dtor,8) void * __thiscall MSVCRT_bad_typeid_vector_dtor(bad_typeid * _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_PTR i, *ptr = (INT_PTR *)_this - 1; for (i = *ptr - 1; i >= 0; i--) MSVCRT_bad_typeid_dtor(_this + i); MSVCRT_operator_delete(ptr); } else { MSVCRT_bad_typeid_dtor(_this); if (flags & 1) MSVCRT_operator_delete(_this); } return _this; } /****************************************************************** * ??_Gbad_typeid@@UAEPAXI@Z (MSVCRT.@) */ DEFINE_THISCALL_WRAPPER(MSVCRT_bad_typeid_scalar_dtor,8) void * __thiscall MSVCRT_bad_typeid_scalar_dtor(bad_typeid * _this, unsigned int flags) { TRACE("(%p %x)\n", _this, flags); MSVCRT_bad_typeid_dtor(_this); if (flags & 1) MSVCRT_operator_delete(_this); return _this; } /****************************************************************** * ??0__non_rtti_object@@QAE@ABV0@@Z (MSVCRT.@) */ DEFINE_THISCALL_WRAPPER(MSVCRT___non_rtti_object_copy_ctor,8) __non_rtti_object * __thiscall MSVCRT___non_rtti_object_copy_ctor(__non_rtti_object * _this, const __non_rtti_object * rhs) { TRACE("(%p %p)\n", _this, rhs); MSVCRT_bad_typeid_copy_ctor(_this, rhs); _this->vtable = &MSVCRT___non_rtti_object_vtable; return _this; } /****************************************************************** * ??0__non_rtti_object@@QAE@PBD@Z (MSVCRT.@) */ DEFINE_THISCALL_WRAPPER(MSVCRT___non_rtti_object_ctor,8) __non_rtti_object * __thiscall MSVCRT___non_rtti_object_ctor(__non_rtti_object * _this, const char * name) { TRACE("(%p %s)\n", _this, name); EXCEPTION_ctor(_this, &name); _this->vtable = &MSVCRT___non_rtti_object_vtable; return _this; } /****************************************************************** * ??1__non_rtti_object@@UAE@XZ (MSVCRT.@) */ DEFINE_THISCALL_WRAPPER(MSVCRT___non_rtti_object_dtor,4) void __thiscall MSVCRT___non_rtti_object_dtor(__non_rtti_object * _this) { TRACE("(%p)\n", _this); MSVCRT_bad_typeid_dtor(_this); } /****************************************************************** * ??4__non_rtti_object@@QAEAAV0@ABV0@@Z (MSVCRT.@) */ DEFINE_THISCALL_WRAPPER(MSVCRT___non_rtti_object_opequals,8) __non_rtti_object * __thiscall MSVCRT___non_rtti_object_opequals(__non_rtti_object * _this, const __non_rtti_object *rhs) { TRACE("(%p %p)\n", _this, rhs); MSVCRT_bad_typeid_opequals(_this, rhs); return _this; } /****************************************************************** * ??_E__non_rtti_object@@UAEPAXI@Z (MSVCRT.@) */ DEFINE_THISCALL_WRAPPER(MSVCRT___non_rtti_object_vector_dtor,8) void * __thiscall MSVCRT___non_rtti_object_vector_dtor(__non_rtti_object * _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_PTR i, *ptr = (INT_PTR *)_this - 1; for (i = *ptr - 1; i >= 0; i--) MSVCRT___non_rtti_object_dtor(_this + i); MSVCRT_operator_delete(ptr); } else { MSVCRT___non_rtti_object_dtor(_this); if (flags & 1) MSVCRT_operator_delete(_this); } return _this; } /****************************************************************** * ??_G__non_rtti_object@@UAEPAXI@Z (MSVCRT.@) */ DEFINE_THISCALL_WRAPPER(MSVCRT___non_rtti_object_scalar_dtor,8) void * __thiscall MSVCRT___non_rtti_object_scalar_dtor(__non_rtti_object * _this, unsigned int flags) { TRACE("(%p %x)\n", _this, flags); MSVCRT___non_rtti_object_dtor(_this); if (flags & 1) MSVCRT_operator_delete(_this); return _this; } /****************************************************************** * ??0bad_cast@@AAE@PBQBD@Z (MSVCRT.@) * ??0bad_cast@@QAE@ABQBD@Z (MSVCRT.@) */ DEFINE_THISCALL_WRAPPER(MSVCRT_bad_cast_ctor,8) bad_cast * __thiscall MSVCRT_bad_cast_ctor(bad_cast * _this, const char ** name) { TRACE("(%p %s)\n", _this, *name); EXCEPTION_ctor(_this, name); _this->vtable = &MSVCRT_bad_cast_vtable; return _this; } /****************************************************************** * ??0bad_cast@@QAE@ABV0@@Z (MSVCRT.@) */ DEFINE_THISCALL_WRAPPER(MSVCRT_bad_cast_copy_ctor,8) bad_cast * __thiscall MSVCRT_bad_cast_copy_ctor(bad_cast * _this, const bad_cast * rhs) { TRACE("(%p %p)\n", _this, rhs); MSVCRT_exception_copy_ctor(_this, rhs); _this->vtable = &MSVCRT_bad_cast_vtable; return _this; } /****************************************************************** * ??0bad_cast@@QAE@PBD@Z (MSVCRT.@) */ DEFINE_THISCALL_WRAPPER(MSVCRT_bad_cast_ctor_charptr,8) bad_cast * __thiscall MSVCRT_bad_cast_ctor_charptr(bad_cast * _this, const char * name) { TRACE("(%p %s)\n", _this, name); EXCEPTION_ctor(_this, &name); _this->vtable = &MSVCRT_bad_cast_vtable; return _this; } /****************************************************************** * ??_Fbad_cast@@QAEXXZ (MSVCRT.@) */ DEFINE_THISCALL_WRAPPER(MSVCRT_bad_cast_default_ctor,4) bad_cast * __thiscall MSVCRT_bad_cast_default_ctor(bad_cast * _this) { return MSVCRT_bad_cast_ctor_charptr( _this, "bad cast" ); } /****************************************************************** * ??1bad_cast@@UAE@XZ (MSVCRT.@) */ DEFINE_THISCALL_WRAPPER(MSVCRT_bad_cast_dtor,4) void __thiscall MSVCRT_bad_cast_dtor(bad_cast * _this) { TRACE("(%p)\n", _this); MSVCRT_exception_dtor(_this); } /****************************************************************** * ??4bad_cast@@QAEAAV0@ABV0@@Z (MSVCRT.@) */ DEFINE_THISCALL_WRAPPER(MSVCRT_bad_cast_opequals,8) bad_cast * __thiscall 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,8) void * __thiscall 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_PTR i, *ptr = (INT_PTR *)_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,8) void * __thiscall 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,8) int __thiscall 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,8) int __thiscall 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,8) int __thiscall 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,4) void __thiscall MSVCRT_type_info_dtor(type_info * _this) { TRACE("(%p)\n", _this); MSVCRT_free(_this->name); } /****************************************************************** * ?name@type_info@@QBEPBDXZ (MSVCRT.@) */ DEFINE_THISCALL_WRAPPER(MSVCRT_type_info_name,4) const char * __thiscall MSVCRT_type_info_name(type_info * _this) { if (!_this->name) { /* Create and set the demangled name */ /* Note: mangled name in type_info struct always starts 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, UNDNAME_NO_ARGUMENTS | UNDNAME_32_BIT_DECODE); 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'; if (InterlockedCompareExchangePointer((void**)&_this->name, name, NULL)) { /* Another thread set this member since we checked above - use it */ MSVCRT_free(name); } } } 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,4) const char * __thiscall 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,8) void * __thiscall 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_PTR i, *ptr = (INT_PTR *)_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; } #ifndef __GNUC__ void __asm_dummy_vtables(void) { #endif __ASM_VTABLE(type_info, VTABLE_ADD_FUNC(MSVCRT_type_info_vector_dtor)); __ASM_VTABLE(exception, VTABLE_ADD_FUNC(MSVCRT_exception_vector_dtor) VTABLE_ADD_FUNC(MSVCRT_what_exception)); #if _MSVCR_VER >= 80 __ASM_VTABLE(exception_old, VTABLE_ADD_FUNC(MSVCRT_exception_vector_dtor) VTABLE_ADD_FUNC(MSVCRT_what_exception)); #endif __ASM_VTABLE(bad_typeid, VTABLE_ADD_FUNC(MSVCRT_bad_typeid_vector_dtor) VTABLE_ADD_FUNC(MSVCRT_what_exception)); __ASM_VTABLE(bad_cast, VTABLE_ADD_FUNC(MSVCRT_bad_cast_vector_dtor) VTABLE_ADD_FUNC(MSVCRT_what_exception)); __ASM_VTABLE(__non_rtti_object, VTABLE_ADD_FUNC(MSVCRT___non_rtti_object_vector_dtor) VTABLE_ADD_FUNC(MSVCRT_what_exception)); #ifndef __GNUC__ } #endif DEFINE_RTTI_DATA0( type_info, 0, ".?AVtype_info@@" ) #if _MSVCR_VER >= 80 DEFINE_RTTI_DATA0( exception, 0, ".?AVexception@std@@" ) DEFINE_RTTI_DATA0( exception_old, 0, ".?AVexception@@" ) DEFINE_RTTI_DATA1( bad_typeid, 0, &exception_rtti_base_descriptor, ".?AVbad_typeid@std@@" ) DEFINE_RTTI_DATA1( bad_cast, 0, &exception_rtti_base_descriptor, ".?AVbad_cast@std@@" ) DEFINE_RTTI_DATA2( __non_rtti_object, 0, &bad_typeid_rtti_base_descriptor, &exception_rtti_base_descriptor, ".?AV__non_rtti_object@std@@" ) #else DEFINE_RTTI_DATA0( exception, 0, ".?AVexception@@" ) DEFINE_RTTI_DATA1( bad_typeid, 0, &exception_rtti_base_descriptor, ".?AVbad_typeid@@" ) DEFINE_RTTI_DATA1( bad_cast, 0, &exception_rtti_base_descriptor, ".?AVbad_cast@@" ) DEFINE_RTTI_DATA2( __non_rtti_object, 0, &bad_typeid_rtti_base_descriptor, &exception_rtti_base_descriptor, ".?AV__non_rtti_object@@" ) #endif DEFINE_EXCEPTION_TYPE_INFO( exception, 0, NULL, NULL ) DEFINE_EXCEPTION_TYPE_INFO( bad_typeid, 1, &exception_cxx_type_info, NULL ) DEFINE_EXCEPTION_TYPE_INFO( bad_cast, 1, &exception_cxx_type_info, NULL ) DEFINE_EXCEPTION_TYPE_INFO( __non_rtti_object, 2, &bad_typeid_cxx_type_info, &exception_cxx_type_info ) void msvcrt_init_exception(void *base) { #ifdef __x86_64__ init_type_info_rtti(base); init_exception_rtti(base); #if _MSVCR_VER >= 80 init_exception_old_rtti(base); #endif init_bad_typeid_rtti(base); init_bad_cast_rtti(base); init___non_rtti_object_rtti(base); init_exception_cxx(base); init_bad_typeid_cxx(base); init_bad_cast_cxx(base); init___non_rtti_object_cxx(base); #endif } /****************************************************************** * ?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 CDECL 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; } /****************************************************************** * _get_terminate (MSVCRT.@) */ MSVCRT_terminate_function CDECL MSVCRT__get_terminate(void) { thread_data_t *data = msvcrt_get_thread_data(); TRACE("returning %p\n", data->terminate_handler); return data->terminate_handler; } /****************************************************************** * ?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 CDECL 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; } /****************************************************************** * _get_unexpected (MSVCRT.@) */ MSVCRT_unexpected_function CDECL MSVCRT__get_unexpected(void) { thread_data_t *data = msvcrt_get_thread_data(); TRACE("returning %p\n", data->unexpected_handler); return data->unexpected_handler; } /****************************************************************** * ?_set_se_translator@@YAP6AXIPAU_EXCEPTION_POINTERS@@@ZP6AXI0@Z@Z (MSVCRT.@) */ MSVCRT__se_translator_function CDECL 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 CDECL MSVCRT_terminate(void) { thread_data_t *data = msvcrt_get_thread_data(); if (data->terminate_handler) data->terminate_handler(); MSVCRT_abort(); } /****************************************************************** * ?unexpected@@YAXXZ (MSVCRT.@) */ void CDECL 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. */ #ifndef __x86_64__ const type_info* CDECL 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; } #else const type_info* CDECL 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 ); char *base; if(obj_locator->signature == 0) base = RtlPcToFileHeader((void*)obj_locator, (void**)&base); else base = (char*)obj_locator - obj_locator->object_locator; ret = (type_info*)(base + 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; } #endif /****************************************************************** * __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. */ #ifndef __x86_64__ void* CDECL 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); /* 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 * * FIXME: the unknown parameter doesn't seem to be used for anything */ __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; } #else void* CDECL 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); __TRY { int i; const rtti_object_locator *obj_locator = get_obj_locator( cppobj ); const rtti_object_hierarchy *obj_bases; const rtti_base_array *base_array; char *base; if (TRACE_ON(msvcrt)) dump_obj_locator(obj_locator); if(obj_locator->signature == 0) base = RtlPcToFileHeader((void*)obj_locator, (void**)&base); else base = (char*)obj_locator - obj_locator->object_locator; obj_bases = (const rtti_object_hierarchy*)(base + obj_locator->type_hierarchy); base_array = (const rtti_base_array*)(base + obj_bases->base_classes); ret = NULL; for (i = 0; i < obj_bases->array_len; i++) { const rtti_base_descriptor *base_desc = (const rtti_base_descriptor*)(base + base_array->bases[i]); const type_info *typ = (const type_info*)(base + base_desc->type_descriptor); if (!strcmp(typ->mangled, dst->mangled)) { void *this_ptr = (char *)cppobj - obj_locator->base_class_offset; ret = get_this_pointer( &base_desc->offsets, this_ptr ); break; } } 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; } #endif /****************************************************************** * __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* CDECL 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; } /********************************************************************* * _CxxThrowException (MSVCRT.@) */ void WINAPI _CxxThrowException( exception *object, const cxx_exception_type *type ) { ULONG_PTR args[3]; args[0] = CXX_FRAME_MAGIC_VC6; args[1] = (ULONG_PTR)object; args[2] = (ULONG_PTR)type; RaiseException( CXX_EXCEPTION, EH_NONCONTINUABLE, 3, args ); } /********************************************************************* * ?_is_exception_typeof@@YAHABVtype_info@@PAU_EXCEPTION_POINTERS@@@Z * ?_is_exception_typeof@@YAHAEBVtype_info@@PEAU_EXCEPTION_POINTERS@@@Z */ #ifndef __x86_64__ int __cdecl _is_exception_typeof(const type_info *ti, EXCEPTION_POINTERS *ep) { int ret = -1; TRACE("(%p %p)\n", ti, ep); __TRY { EXCEPTION_RECORD *rec = ep->ExceptionRecord; if (rec->ExceptionCode==CXX_EXCEPTION && rec->NumberParameters==3 && (rec->ExceptionInformation[0]==CXX_FRAME_MAGIC_VC6 || rec->ExceptionInformation[0]==CXX_FRAME_MAGIC_VC7 || rec->ExceptionInformation[0]==CXX_FRAME_MAGIC_VC8)) { const cxx_type_info_table *tit = ((cxx_exception_type*)rec->ExceptionInformation[2])->type_info_table; int i; for (i=0; icount; i++) { if (ti==tit->info[i]->type_info || !strcmp(ti->mangled, tit->info[i]->type_info->mangled)) { ret = 1; break; } } if (i == tit->count) ret = 0; } } __EXCEPT_PAGE_FAULT __ENDTRY if(ret == -1) MSVCRT_terminate(); return ret; } #else int __cdecl _is_exception_typeof(const type_info *ti, EXCEPTION_POINTERS *ep) { int ret = -1; TRACE("(%p %p)\n", ti, ep); __TRY { EXCEPTION_RECORD *rec = ep->ExceptionRecord; if (rec->ExceptionCode==CXX_EXCEPTION && rec->NumberParameters==4 && (rec->ExceptionInformation[0]==CXX_FRAME_MAGIC_VC6 || rec->ExceptionInformation[0]==CXX_FRAME_MAGIC_VC7 || rec->ExceptionInformation[0]==CXX_FRAME_MAGIC_VC8)) { const cxx_exception_type *et = (cxx_exception_type*)rec->ExceptionInformation[2]; const cxx_type_info_table *tit = (const cxx_type_info_table*)(rec->ExceptionInformation[3]+et->type_info_table); int i; for (i=0; icount; i++) { const cxx_type_info *cti = (const cxx_type_info*)(rec->ExceptionInformation[3]+tit->info[i]); const type_info *except_ti = (const type_info*)(rec->ExceptionInformation[3]+cti->type_info); if (ti==except_ti || !strcmp(ti->mangled, except_ti->mangled)) { ret = 1; break; } } if (i == tit->count) ret = 0; } } __EXCEPT_PAGE_FAULT __ENDTRY if(ret == -1) MSVCRT_terminate(); return ret; } #endif /********************************************************************* * __clean_type_info_names_internal (MSVCR100.@) */ void CDECL __clean_type_info_names_internal(void *p) { FIXME("(%p) stub\n", p); } /********************************************************************* * ?_name_internal_method@type_info@@QBEPBDPAU__type_info_node@@@Z (MSVCR100.@) */ DEFINE_THISCALL_WRAPPER(type_info_name_internal_method,8) const char * __thiscall type_info_name_internal_method(type_info * _this, struct __type_info_node *node) { static int once; if (node && !once++) FIXME("type_info_node parameter ignored\n"); return MSVCRT_type_info_name(_this); } /* std::exception_ptr class helpers */ typedef struct { EXCEPTION_RECORD *rec; int *ref; /* not binary compatible with native msvcr100 */ } exception_ptr; /********************************************************************* * ?__ExceptionPtrCreate@@YAXPAX@Z * ?__ExceptionPtrCreate@@YAXPEAX@Z */ void __cdecl __ExceptionPtrCreate(exception_ptr *ep) { TRACE("(%p)\n", ep); ep->rec = NULL; ep->ref = NULL; } #ifdef __i386__ static inline void call_dtor(const cxx_exception_type *type, void *func, void *object) { __asm__ __volatile__("call *%0" : : "m" (func), "c" (object) : "eax", "edx", "memory"); } #elif __x86_64__ static inline void call_dtor(const cxx_exception_type *type, unsigned int dtor, void *object) { char *base = RtlPcToFileHeader((void*)type, (void**)&base); void (__cdecl *func)(void*) = (void*)(base + dtor); func(object); } #else #define call_dtor(type, func, object) ((void (__cdecl*)(void*))(func))(object) #endif /********************************************************************* * ?__ExceptionPtrDestroy@@YAXPAX@Z * ?__ExceptionPtrDestroy@@YAXPEAX@Z */ void __cdecl __ExceptionPtrDestroy(exception_ptr *ep) { TRACE("(%p)\n", ep); if (!ep->rec) return; if (!InterlockedDecrement(ep->ref)) { if (ep->rec->ExceptionCode == CXX_EXCEPTION) { const cxx_exception_type *type = (void*)ep->rec->ExceptionInformation[2]; void *obj = (void*)ep->rec->ExceptionInformation[1]; if (type && type->destructor) call_dtor(type, type->destructor, obj); HeapFree(GetProcessHeap(), 0, obj); } HeapFree(GetProcessHeap(), 0, ep->rec); HeapFree(GetProcessHeap(), 0, ep->ref); } } /********************************************************************* * ?__ExceptionPtrCopy@@YAXPAXPBX@Z * ?__ExceptionPtrCopy@@YAXPEAXPEBX@Z */ void __cdecl __ExceptionPtrCopy(exception_ptr *ep, const exception_ptr *copy) { TRACE("(%p %p)\n", ep, copy); /* don't destroy object stored in ep */ *ep = *copy; if (ep->ref) InterlockedIncrement(copy->ref); } /********************************************************************* * ?__ExceptionPtrRethrow@@YAXPBX@Z * ?__ExceptionPtrRethrow@@YAXPEBX@Z */ void __cdecl __ExceptionPtrRethrow(const exception_ptr *ep) { TRACE("(%p)\n", ep); if (!ep->rec) { static const char *exception_msg = "bad exception"; exception e; MSVCRT_exception_ctor(&e, &exception_msg); _CxxThrowException(&e, &exception_exception_type); return; } RaiseException(ep->rec->ExceptionCode, ep->rec->ExceptionFlags & (~EH_UNWINDING), ep->rec->NumberParameters, ep->rec->ExceptionInformation); } #ifdef __i386__ static inline void call_copy_ctor( void *func, void *this, void *src, int has_vbase ) { TRACE( "calling copy ctor %p object %p src %p\n", func, this, src ); if (has_vbase) /* in that case copy ctor takes an extra bool indicating whether to copy the base class */ __asm__ __volatile__("pushl $1; pushl %2; call *%0" : : "m" (func), "c" (this), "m" (src) : "eax", "edx", "memory" ); else __asm__ __volatile__("pushl %2; call *%0" : : "m" (func), "c" (this), "m" (src) : "eax", "edx", "memory" ); } #else static inline void call_copy_ctor( void *func, void *this, void *src, int has_vbase ) { TRACE( "calling copy ctor %p object %p src %p\n", func, this, src ); if (has_vbase) ((void (__cdecl*)(void*, void*, BOOL))func)(this, src, 1); else ((void (__cdecl*)(void*, void*))func)(this, src); } #endif /********************************************************************* * ?__ExceptionPtrCurrentException@@YAXPAX@Z * ?__ExceptionPtrCurrentException@@YAXPEAX@Z */ #ifndef __x86_64__ void __cdecl __ExceptionPtrCurrentException(exception_ptr *ep) { EXCEPTION_RECORD *rec = msvcrt_get_thread_data()->exc_record; TRACE("(%p)\n", ep); if (!rec) { ep->rec = NULL; ep->ref = NULL; return; } ep->rec = HeapAlloc(GetProcessHeap(), 0, sizeof(EXCEPTION_RECORD)); ep->ref = HeapAlloc(GetProcessHeap(), 0, sizeof(int)); *ep->rec = *rec; *ep->ref = 1; if (ep->rec->ExceptionCode == CXX_EXCEPTION) { const cxx_exception_type *et = (void*)ep->rec->ExceptionInformation[2]; const cxx_type_info *ti; void **data, *obj; ti = et->type_info_table->info[0]; data = HeapAlloc(GetProcessHeap(), 0, ti->size); obj = (void*)ep->rec->ExceptionInformation[1]; if (ti->flags & CLASS_IS_SIMPLE_TYPE) { memcpy(data, obj, ti->size); if (ti->size == sizeof(void *)) *data = get_this_pointer(&ti->offsets, *data); } else if (ti->copy_ctor) { call_copy_ctor(ti->copy_ctor, data, get_this_pointer(&ti->offsets, obj), ti->flags & CLASS_HAS_VIRTUAL_BASE_CLASS); } else memcpy(data, get_this_pointer(&ti->offsets, obj), ti->size); ep->rec->ExceptionInformation[1] = (ULONG_PTR)data; } return; } #else void __cdecl __ExceptionPtrCurrentException(exception_ptr *ep) { EXCEPTION_RECORD *rec = msvcrt_get_thread_data()->exc_record; TRACE("(%p)\n", ep); if (!rec) { ep->rec = NULL; ep->ref = NULL; return; } ep->rec = HeapAlloc(GetProcessHeap(), 0, sizeof(EXCEPTION_RECORD)); ep->ref = HeapAlloc(GetProcessHeap(), 0, sizeof(int)); *ep->rec = *rec; *ep->ref = 1; if (ep->rec->ExceptionCode == CXX_EXCEPTION) { const cxx_exception_type *et = (void*)ep->rec->ExceptionInformation[2]; const cxx_type_info *ti; void **data, *obj; char *base = RtlPcToFileHeader((void*)et, (void**)&base); ti = (const cxx_type_info*)(base + ((const cxx_type_info_table*)(base + et->type_info_table))->info[0]); data = HeapAlloc(GetProcessHeap(), 0, ti->size); obj = (void*)ep->rec->ExceptionInformation[1]; if (ti->flags & CLASS_IS_SIMPLE_TYPE) { memcpy(data, obj, ti->size); if (ti->size == sizeof(void *)) *data = get_this_pointer(&ti->offsets, *data); } else if (ti->copy_ctor) { call_copy_ctor(base + ti->copy_ctor, data, get_this_pointer(&ti->offsets, obj), ti->flags & CLASS_HAS_VIRTUAL_BASE_CLASS); } else memcpy(data, get_this_pointer(&ti->offsets, obj), ti->size); ep->rec->ExceptionInformation[1] = (ULONG_PTR)data; } return; } #endif void* __cdecl __AdjustPointer(void *obj, const this_ptr_offsets *off) { return get_this_pointer(off, obj); }