840 lines
26 KiB
C++
840 lines
26 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*************************************************************************
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*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* Copyright 2000, 2010 Oracle and/or its affiliates.
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* This file is part of OpenOffice.org.
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*
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* OpenOffice.org is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License version 3
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* only, as published by the Free Software Foundation.
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*
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* OpenOffice.org 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
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* GNU Lesser General Public License version 3 for more details
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* (a copy is included in the LICENSE file that accompanied this code).
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*
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* You should have received a copy of the GNU Lesser General Public License
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* version 3 along with OpenOffice.org. If not, see
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* <http://www.openoffice.org/license.html>
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* for a copy of the LGPLv3 License.
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*
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************************************************************************/
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// Interesting info can be found in:
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// MSDN, obviously
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// http://www.osronline.com/article.cfm?article=469
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// ONTL, "Open NT Native Template Library", a C++ STL-like library
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// that can be used even when writing Windows drivers. This is some
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// quite badass code. The author has done impressive heavy spelunking
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// of MSVCR structures. http://code.google.com/p/ontl/
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// Geoff Chappell's pages:
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// http://members.ozemail.com.au/~geoffch/samples/programming/msvc/language/index.html
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// The below is from ONTL's ntl/nt/exception.hxx, cleaned up to keep just the _M_X64 parts:
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#if 0
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/* This information until the corresponding '#endif // 0' is covered
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* by ONTL's license, which is said to be the "zlib/libgng license"
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* below, which as far as I see is permissive enough to allow this
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* information to be included here in this source file. Note that no
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* actual code from ONTL below gets compiled into the object file.
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*/
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/*
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* Copyright (c) 2011 <copyright holders> (The ONTL main
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* developer(s) don't tell their real name(s) on the ONTL site.)
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*
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* This software is provided 'as-is', without any express or implied
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* warranty. In no event will the authors be held liable for any damages
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* arising from the use of this software.
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*
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* Permission is granted to anyone to use this software for any purpose,
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* including commercial applications, and to alter it and redistribute it
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* freely, subject to the following restrictions:
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*
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* 1. The origin of this software must not be misrepresented; you must not
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* claim that you wrote the original software. If you use this software
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* in a product, an acknowledgment in the product documentation would be
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* appreciated but is not required.
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*
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* 2. Altered source versions must be plainly marked as such, and must not be
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* misrepresented as being the original software.
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*
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* 3. This notice may not be removed or altered from any source
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* distribution.
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*
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*/
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typedef uint32_t rva_t;
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///\note the calling convention should not matter since this has no arguments
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typedef void generic_function_t();
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struct ptrtomember // _PMD
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{
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typedef __w64 int32_t mdiff_t;
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mdiff_t member_offset;
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mdiff_t vbtable_offset; // -1 if not a virtual base
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mdiff_t vdisp_offset; // offset to the displacement value inside the vbtable
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template<typename T>
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T * operator()(T * const thisptr) const
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{
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uintptr_t tp = reinterpret_cast<uintptr_t>(thisptr);
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uintptr_t ptr = tp + member_offset;
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if ( vbtable_offset != -1 ) // !(vbtable_offset < 0)
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{
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ptr += *reinterpret_cast<mdiff_t*>( static_cast<intptr_t>(vdisp_offset + *reinterpret_cast<mdiff_t*>(tp + vbtable_offset)) )
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+ vbtable_offset;
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}
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return reinterpret_cast<T*>(ptr);
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}
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};
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struct eobject
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{
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typedef void (* dtor_ptr )(eobject*);
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typedef void (* ctor_ptr )(eobject*, eobject*);
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typedef void (* ctor_ptr2)(eobject*, eobject*, int);
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};
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struct catchabletype
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{
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/** is simple type */
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uint32_t memmoveable : 1;
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/** catchable as reference only */
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uint32_t refonly : 1;
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/** class with virtual base */
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uint32_t hasvirtbase : 1;
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/** offset to the type descriptor */
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rva_t typeinfo;
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/** catch type instance location within a thrown object */
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ptrtomember thiscast;
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/** size of the simple type or offset into buffer of \c this pointer for catch object */
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uint32_t object_size;
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union
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{
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rva_t copyctor;
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rva_t copyctor2;
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};
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};
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#pragma pack(push, 4)
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struct catchabletypearray
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{
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uint32_t size;
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rva_t type[1];
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};
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#pragma pack(pop)
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#pragma pack(push, 4)
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struct throwinfo
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{
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typedef exception_disposition __cdecl forwardcompathandler_t(...);
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/* 0x00 */ uint32_t econst : 1;
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/* 0x00 */ uint32_t evolatile : 1;
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/* 0x00 */ uint32_t : 1;
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/* 0x00 */ uint32_t e8 : 1;
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/* 0x04 */ rva_t exception_dtor;
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/* 0x08 */ rva_t forwardcompathandler;
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/* 0x0C */ rva_t catchabletypearray; ///< types able to catch the exception.
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};
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#pragma pack(pop)
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/// This type represents the catch clause
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struct ehandler
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{
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// union { uint32_t adjectives; void * ptr; };
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uint32_t isconst : 1;
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uint32_t isvolatile : 1;
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uint32_t isunaligned : 1;// guess it is not used on x86
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uint32_t isreference : 1;
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uint32_t :27;
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uint32_t ishz : 1;
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/** offset to the type descriptor of this catch object */
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/*0x04*/ rva_t typeinfo; // dispType
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/*0x08*/ int eobject_bpoffset; // dispCatchObj
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/** offset to the catch clause funclet */
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/*0x0C*/ rva_t handler; // dispOfHandler
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/*0x10*/ uint32_t frame; // dispFrame
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}
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// ___BuildCatchObject
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/// 15.3/16 When the exception-declaration specifies a class type, a copy
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/// constructor is used to initialize either the object declared
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/// in the exception-declaration or,
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/// if the exception-declaration does not specify a name,
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/// a temporary object of that type.
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///\note This is the question may we optimize out the last case.
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///\warning If the copy constructor throws an exception, std::unexpected would be called
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void
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constructcatchobject(
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cxxregistration * cxxreg,
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const ehandler * const catchblock,
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catchabletype * const convertable,
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const dispatcher_context* const dispatch
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)
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const
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{
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_EH_TRACE_ENTER();
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// build helper
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__try {
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struct typeinfo_t { void* vtbl; void* spare; char name[1]; };
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enum catchable_info { cidefault, cicomplex, civirtual } cinfo = cidefault;
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const typeinfo_t* ti = catchblock->typeinfo ? dispatch->va<typeinfo_t*>(catchblock->typeinfo) : NULL;
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if(ti && *ti->name && (catchblock->eobject_bpoffset || catchblock->ishz)){
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eobject** objplace = catchblock->ishz
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? reinterpret_cast<eobject**>(cxxreg)
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: reinterpret_cast<eobject**>(catchblock->eobject_bpoffset + cxxreg->fp.FramePointers);
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if(catchblock->isreference){
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// just ref/pointer
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*objplace = adjust_pointer(get_object(), convertable);
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}else if(convertable->memmoveable){
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// POD
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std::memcpy(objplace, get_object(), convertable->object_size);
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if(convertable->object_size == sizeof(void*) && *objplace)
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*objplace = adjust_pointer((void*)*objplace, convertable);
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}else{
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// if copy ctor exists, call it; binary copy otherwise
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if(convertable->copyctor){
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cinfo = convertable->hasvirtbase ? civirtual : cicomplex;
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}else{
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std::memcpy(objplace, (const void*)adjust_pointer(get_object(), convertable), convertable->object_size);
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}
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}
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}
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// end of build helper
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if(cinfo != cidefault){
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eobject* objthis = catchblock->ishz
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? reinterpret_cast<eobject*>(cxxreg)
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: reinterpret_cast<eobject*>(catchblock->eobject_bpoffset + cxxreg->fp.FramePointers);
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void* copyctor = thrown_va(convertable->copyctor);
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eobject* copyarg = adjust_pointer(get_object(), convertable);
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if(cinfo == cicomplex)
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(eobject::ctor_ptr (copyctor))(objthis, copyarg);
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else
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(eobject::ctor_ptr2(copyctor))(objthis, copyarg, 1);
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}
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}
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__except(cxxregistration::unwindfilter(static_cast<nt::ntstatus>(_exception_code())))
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{
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nt::exception::inconsistency();
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}
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_EH_TRACE_LEAVE();
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}
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#endif // 0
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// MARKER(update_precomp.py): autogen include statement, do not remove
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#include "precompiled_bridges.hxx"
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#pragma warning( disable : 4237 )
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#include <boost/unordered_map.hpp>
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#include <sal/config.h>
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#include <malloc.h>
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#include <new.h>
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#include <typeinfo.h>
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#include <signal.h>
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#include "rtl/alloc.h"
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#include <rtl/instance.hxx>
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#include "rtl/strbuf.hxx"
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#include "rtl/ustrbuf.hxx"
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#include "com/sun/star/uno/Any.hxx"
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#include "mscx.hxx"
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#pragma pack(push, 8)
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using namespace ::com::sun::star::uno;
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using namespace ::std;
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using namespace ::osl;
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using namespace ::rtl;
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namespace CPPU_CURRENT_NAMESPACE
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{
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static inline OUString toUNOname(
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OUString const & rRTTIname )
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throw ()
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{
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OUStringBuffer aRet( 64 );
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OUString aStr( rRTTIname.copy( 4, rRTTIname.getLength()-4-2 ) ); // filter .?AUzzz@yyy@xxx@@
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sal_Int32 nPos = aStr.getLength();
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while (nPos > 0)
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{
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sal_Int32 n = aStr.lastIndexOf( '@', nPos );
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aRet.append( aStr.copy( n +1, nPos -n -1 ) );
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if (n >= 0)
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{
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aRet.append( (sal_Unicode)'.' );
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}
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nPos = n;
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}
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return aRet.makeStringAndClear();
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}
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static inline OUString toRTTIname(
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OUString const & rUNOname )
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throw ()
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{
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OUStringBuffer aRet( 64 );
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aRet.appendAscii( RTL_CONSTASCII_STRINGPARAM(".?AV") ); // class ".?AV"; struct ".?AU"
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sal_Int32 nPos = rUNOname.getLength();
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while (nPos > 0)
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{
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sal_Int32 n = rUNOname.lastIndexOf( '.', nPos );
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aRet.append( rUNOname.copy( n +1, nPos -n -1 ) );
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aRet.append( (sal_Unicode)'@' );
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nPos = n;
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}
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aRet.append( (sal_Unicode)'@' );
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return aRet.makeStringAndClear();
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}
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//RTTI simulation
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typedef boost::unordered_map< OUString, void *, OUStringHash, equal_to< OUString > > t_string2PtrMap;
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class RTTInfos
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{
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Mutex _aMutex;
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t_string2PtrMap _allRTTI;
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static OUString toRawName( OUString const & rUNOname ) throw ();
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public:
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type_info * getRTTI( OUString const & rUNOname ) throw ();
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RTTInfos();
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~RTTInfos();
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};
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class __type_info
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{
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friend type_info * RTTInfos::getRTTI( OUString const & ) throw ();
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friend int mscx_filterCppException(
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LPEXCEPTION_POINTERS, uno_Any *, uno_Mapping * );
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public:
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virtual ~__type_info() throw ();
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inline __type_info( void * m_data, const char * m_d_name ) throw ()
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: _m_data( m_data )
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{ ::strcpy( _m_d_name, m_d_name ); } // #100211# - checked
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private:
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void * _m_data;
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char _m_d_name[1];
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};
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__type_info::~__type_info() throw ()
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{
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}
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type_info * RTTInfos::getRTTI( OUString const & rUNOname ) throw ()
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{
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// a must be
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OSL_ENSURE( sizeof(__type_info) == sizeof(type_info), "### type info structure size differ!" );
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MutexGuard aGuard( _aMutex );
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t_string2PtrMap::const_iterator const iFind( _allRTTI.find( rUNOname ) );
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// check if type is already available
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if (iFind == _allRTTI.end())
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{
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// insert new type_info
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OString aRawName( OUStringToOString( toRTTIname( rUNOname ), RTL_TEXTENCODING_ASCII_US ) );
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__type_info * pRTTI = new( ::rtl_allocateMemory( sizeof(__type_info) + aRawName.getLength() ) )
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__type_info( NULL, aRawName.getStr() );
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// put into map
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pair< t_string2PtrMap::iterator, bool > insertion(
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_allRTTI.insert( t_string2PtrMap::value_type( rUNOname, pRTTI ) ) );
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OSL_ENSURE( insertion.second, "### rtti insertion failed?!" );
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return (type_info *)pRTTI;
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}
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else
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{
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return (type_info *)iFind->second;
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}
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}
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RTTInfos::RTTInfos() throw ()
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{
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}
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RTTInfos::~RTTInfos() throw ()
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{
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#if OSL_DEBUG_LEVEL > 1
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OSL_TRACE( "> freeing generated RTTI infos... <\n" );
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#endif
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MutexGuard aGuard( _aMutex );
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for ( t_string2PtrMap::const_iterator iPos( _allRTTI.begin() );
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iPos != _allRTTI.end(); ++iPos )
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{
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__type_info * pType = (__type_info *)iPos->second;
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pType->~__type_info(); // obsolete, but good style...
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::rtl_freeMemory( pType );
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}
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}
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void * __cdecl copyConstruct(
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void * pExcThis,
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void * pSource,
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typelib_TypeDescription * pTD ) throw ()
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{
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::uno_copyData( pExcThis, pSource, pTD, cpp_acquire );
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return pExcThis;
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}
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void * __cdecl destruct(
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void * pExcThis,
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typelib_TypeDescription * pTD ) throw ()
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{
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::uno_destructData( pExcThis, pTD, cpp_release );
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return pExcThis;
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}
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const int codeSnippetSize = 40;
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void GenerateConstructorTrampoline(
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unsigned char * code,
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typelib_TypeDescription * pTD ) throw ()
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{
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unsigned char *p = code;
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// mov r8, pTD
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*p++ = 0x49; *p++ = 0xB8;
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*((void **)p) = pTD; p += 8;
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// mov r11, copyConstruct
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*p++ = 0x49; *p++ = 0xBB;
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*((void **)p) = ©Construct; p += 8;
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// jmp r11
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*p++ = 0x41; *p++ = 0xFF; *p++ = 0xE3;
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OSL_ASSERT( p < code + codeSnippetSize );
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}
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void GenerateDestructorTrampoline(
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unsigned char * code,
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typelib_TypeDescription * pTD ) throw ()
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{
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unsigned char *p = code;
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// mov rdx, pTD
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*p++ = 0x48; *p++ = 0xBA;
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*((void **)p) = pTD; p += 8;
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// mov r11, destruct
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*p++ = 0x49; *p++ = 0xBB;
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*((void **)p) = &destruct; p += 8;
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// jmp r11
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*p++ = 0x41; *p++ = 0xFF; *p++ = 0xE3;
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OSL_ASSERT( p < code + codeSnippetSize );
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}
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// This looks like it is the struct catchabletype above
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struct ExceptionType
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{
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sal_Int32 _n0; // flags
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sal_uInt32 _pTypeInfo; // typeinfo
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sal_Int32 _n1, _n2, _n3; // thiscast
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sal_Int32 _n4; // object_size
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sal_uInt32 _pCopyCtor; // copyctor
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inline ExceptionType(
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sal_uChar * pCode,
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sal_uInt64 pCodeBase,
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typelib_TypeDescription * pTD ) throw ()
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: _n0( 0 )
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, _n1( 0 )
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, _n2( -1 )
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, _n3( 0 )
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, _n4( pTD->nSize )
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{
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// As _n0 is always initialized to zero, that means the
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// hasvirtbase flag (see the ONTL catchabletype struct) is
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// off, and thus the copyctor is of the ctor_ptr kind.
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_pTypeInfo = (sal_uInt32) ((sal_uInt64) mscx_getRTTI( pTD->pTypeName ) - pCodeBase);
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GenerateConstructorTrampoline( pCode, pTD );
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_pCopyCtor = (sal_uInt32) ((sal_uInt64) pCode - pCodeBase);
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}
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inline ~ExceptionType() throw ()
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{
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}
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};
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struct RaiseInfo;
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class ExceptionInfos
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{
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Mutex _aMutex;
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t_string2PtrMap _allRaiseInfos;
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public:
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static RaiseInfo * getRaiseInfo( typelib_TypeDescription * pTD ) throw ();
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static DWORD allocationGranularity;
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ExceptionInfos() throw ();
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~ExceptionInfos() throw ();
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};
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|
|
|
DWORD ExceptionInfos::allocationGranularity = 0;
|
|
|
|
// This corresponds to the struct throwinfo described above.
|
|
|
|
struct RaiseInfo
|
|
{
|
|
sal_Int32 _n0;
|
|
sal_uInt32 _pDtor;
|
|
sal_Int32 _n2;
|
|
sal_uInt32 _types;
|
|
|
|
// Additional fields
|
|
typelib_TypeDescription * _pTD;
|
|
sal_uChar * _code;
|
|
sal_uInt64 _codeBase;
|
|
|
|
RaiseInfo( typelib_TypeDescription * pTD ) throw ();
|
|
|
|
~RaiseInfo() throw ();
|
|
};
|
|
|
|
RaiseInfo::RaiseInfo( typelib_TypeDescription * pTD )throw ()
|
|
: _n0( 0 )
|
|
, _n2( 0 )
|
|
, _pTD( pTD )
|
|
{
|
|
typelib_CompoundTypeDescription * pCompTD;
|
|
|
|
// Count how many trampolines we need
|
|
int codeSize = codeSnippetSize;
|
|
|
|
// Info count
|
|
int nLen = 0;
|
|
for ( pCompTD = (typelib_CompoundTypeDescription*)pTD;
|
|
pCompTD; pCompTD = pCompTD->pBaseTypeDescription )
|
|
{
|
|
++nLen;
|
|
codeSize += codeSnippetSize;
|
|
}
|
|
|
|
sal_uChar * pCode = _code = (sal_uChar *)::rtl_allocateMemory( codeSize );
|
|
|
|
_codeBase = (sal_uInt64)pCode & ~(ExceptionInfos::allocationGranularity-1);
|
|
|
|
DWORD old_protect;
|
|
#if OSL_DEBUG_LEVEL > 0
|
|
BOOL success =
|
|
#endif
|
|
VirtualProtect( pCode, codeSize, PAGE_EXECUTE_READWRITE, &old_protect );
|
|
OSL_ENSURE( success, "VirtualProtect() failed!" );
|
|
|
|
::typelib_typedescription_acquire( pTD );
|
|
|
|
GenerateDestructorTrampoline( pCode, pTD );
|
|
_pDtor = (sal_Int32)((sal_uInt64)pCode - _codeBase);
|
|
pCode += codeSnippetSize;
|
|
|
|
// Info count accompanied by type info ptrs: type, base type, base base type, ...
|
|
_types = (sal_Int32)((sal_uInt64)::rtl_allocateMemory( 4 + 4* nLen) - _codeBase);
|
|
*(sal_Int32 *)_types = nLen;
|
|
|
|
ExceptionType ** ppTypes = (ExceptionType **)((sal_Int32 *)_types + 1);
|
|
|
|
int nPos = 0;
|
|
for ( pCompTD = (typelib_CompoundTypeDescription*)pTD;
|
|
pCompTD; pCompTD = pCompTD->pBaseTypeDescription )
|
|
{
|
|
ppTypes[nPos++] =
|
|
new ExceptionType( pCode, _codeBase,
|
|
(typelib_TypeDescription *)pCompTD );
|
|
pCode += codeSnippetSize;
|
|
}
|
|
}
|
|
|
|
RaiseInfo::~RaiseInfo() throw ()
|
|
{
|
|
sal_uInt32 * pTypes =
|
|
(sal_uInt32 *)(_codeBase + _types) + 1;
|
|
|
|
for ( int nTypes = *(sal_uInt32 *)(_codeBase + _types); nTypes--; )
|
|
{
|
|
delete (ExceptionType *) (_codeBase + pTypes[nTypes]);
|
|
}
|
|
::rtl_freeMemory( (void*)(_codeBase +_types) );
|
|
::rtl_freeMemory( _code );
|
|
|
|
::typelib_typedescription_release( _pTD );
|
|
}
|
|
|
|
ExceptionInfos::ExceptionInfos() throw ()
|
|
{
|
|
}
|
|
|
|
ExceptionInfos::~ExceptionInfos() throw ()
|
|
{
|
|
#if OSL_DEBUG_LEVEL > 1
|
|
OSL_TRACE( "> freeing exception infos... <\n" );
|
|
#endif
|
|
|
|
MutexGuard aGuard( _aMutex );
|
|
for ( t_string2PtrMap::const_iterator iPos( _allRaiseInfos.begin() );
|
|
iPos != _allRaiseInfos.end(); ++iPos )
|
|
{
|
|
delete (RaiseInfo *)iPos->second;
|
|
}
|
|
}
|
|
|
|
RaiseInfo * ExceptionInfos::getRaiseInfo( typelib_TypeDescription * pTD ) throw ()
|
|
{
|
|
static ExceptionInfos * s_pInfos = 0;
|
|
if (! s_pInfos)
|
|
{
|
|
MutexGuard aGuard( Mutex::getGlobalMutex() );
|
|
if (! s_pInfos)
|
|
{
|
|
SYSTEM_INFO systemInfo;
|
|
GetSystemInfo( &systemInfo );
|
|
allocationGranularity = systemInfo.dwAllocationGranularity;
|
|
|
|
#ifdef LEAK_STATIC_DATA
|
|
s_pInfos = new ExceptionInfos();
|
|
#else
|
|
static ExceptionInfos s_allExceptionInfos;
|
|
s_pInfos = &s_allExceptionInfos;
|
|
#endif
|
|
}
|
|
}
|
|
|
|
OSL_ASSERT( pTD &&
|
|
(pTD->eTypeClass == typelib_TypeClass_STRUCT ||
|
|
pTD->eTypeClass == typelib_TypeClass_EXCEPTION) );
|
|
|
|
RaiseInfo * pRaiseInfo;
|
|
|
|
OUString const & rTypeName = *reinterpret_cast< OUString * >( &pTD->pTypeName );
|
|
MutexGuard aGuard( s_pInfos->_aMutex );
|
|
t_string2PtrMap::const_iterator const iFind(
|
|
s_pInfos->_allRaiseInfos.find( rTypeName ) );
|
|
if (iFind == s_pInfos->_allRaiseInfos.end())
|
|
{
|
|
pRaiseInfo = new RaiseInfo( pTD );
|
|
|
|
// Put into map
|
|
pair< t_string2PtrMap::iterator, bool > insertion(
|
|
s_pInfos->_allRaiseInfos.insert( t_string2PtrMap::value_type( rTypeName, (void *)pRaiseInfo ) ) );
|
|
OSL_ENSURE( insertion.second, "### raise info insertion failed?!" );
|
|
}
|
|
else
|
|
{
|
|
// Reuse existing info
|
|
pRaiseInfo = (RaiseInfo *)iFind->second;
|
|
}
|
|
|
|
return pRaiseInfo;
|
|
}
|
|
|
|
struct RTTISingleton: public rtl::Static< RTTInfos, RTTISingleton > {};
|
|
|
|
type_info * mscx_getRTTI(
|
|
OUString const & rUNOname )
|
|
{
|
|
return RTTISingleton::get().getRTTI( rUNOname );
|
|
}
|
|
|
|
void mscx_raiseException(
|
|
uno_Any * pUnoExc,
|
|
uno_Mapping * pUno2Cpp )
|
|
{
|
|
// no ctor/dtor in here: this leads to dtors called twice upon RaiseException()!
|
|
// thus this obj file will be compiled without opt, so no inlining of
|
|
// ExceptionInfos::getRaiseInfo()
|
|
|
|
// construct cpp exception object
|
|
typelib_TypeDescription * pTD = NULL;
|
|
TYPELIB_DANGER_GET( &pTD, pUnoExc->pType );
|
|
|
|
void * pCppExc = alloca( pTD->nSize );
|
|
::uno_copyAndConvertData( pCppExc, pUnoExc->pData, pTD, pUno2Cpp );
|
|
|
|
ULONG_PTR arFilterArgs[4];
|
|
arFilterArgs[0] = MSVC_magic_number;
|
|
arFilterArgs[1] = (ULONG_PTR)pCppExc;
|
|
arFilterArgs[2] = (ULONG_PTR)ExceptionInfos::getRaiseInfo( pTD );
|
|
arFilterArgs[3] = ((RaiseInfo *)arFilterArgs[2])->_codeBase;
|
|
|
|
// Destruct uno exception
|
|
::uno_any_destruct( pUnoExc, 0 );
|
|
TYPELIB_DANGER_RELEASE( pTD );
|
|
|
|
// last point to release anything not affected by stack unwinding
|
|
RaiseException( MSVC_ExceptionCode, EXCEPTION_NONCONTINUABLE, 3, arFilterArgs );
|
|
}
|
|
|
|
int mscx_filterCppException(
|
|
EXCEPTION_POINTERS * pPointers,
|
|
uno_Any * pUnoExc,
|
|
uno_Mapping * pCpp2Uno )
|
|
{
|
|
if (pPointers == 0)
|
|
return EXCEPTION_CONTINUE_SEARCH;
|
|
|
|
EXCEPTION_RECORD * pRecord = pPointers->ExceptionRecord;
|
|
|
|
// Handle only C++ exceptions:
|
|
if (pRecord == 0 || pRecord->ExceptionCode != MSVC_ExceptionCode)
|
|
return EXCEPTION_CONTINUE_SEARCH;
|
|
|
|
bool rethrow = __CxxDetectRethrow( &pRecord );
|
|
OSL_ASSERT( pRecord == pPointers->ExceptionRecord );
|
|
|
|
if (rethrow && pRecord == pPointers->ExceptionRecord)
|
|
{
|
|
// Hack to get msvcrt internal _curexception field:
|
|
pRecord = *reinterpret_cast< EXCEPTION_RECORD ** >(
|
|
reinterpret_cast< char * >( __pxcptinfoptrs() ) +
|
|
// As long as we don't demand MSVCR source as build prerequisite,
|
|
// we have to code those offsets here.
|
|
//
|
|
// MSVS9/crt/src/mtdll.h:
|
|
// offsetof (_tiddata, _curexception) -
|
|
// offsetof (_tiddata, _tpxcptinfoptrs):
|
|
#if _MSC_VER < 1500
|
|
error, this compiler version is not supported
|
|
#elif _MSC_VER < 1600
|
|
0x48 // msvcr90.dll
|
|
#else
|
|
error, please find value for this compiler version
|
|
#endif
|
|
);
|
|
}
|
|
|
|
// Rethrow: handle only C++ exceptions:
|
|
if (pRecord == 0 || pRecord->ExceptionCode != MSVC_ExceptionCode)
|
|
return EXCEPTION_CONTINUE_SEARCH;
|
|
|
|
if (pRecord->NumberParameters == 4 &&
|
|
pRecord->ExceptionInformation[0] == MSVC_magic_number &&
|
|
pRecord->ExceptionInformation[1] != 0 &&
|
|
pRecord->ExceptionInformation[2] != 0 &&
|
|
pRecord->ExceptionInformation[3] != 0)
|
|
{
|
|
// ExceptionInformation[1] is the address of the thrown object
|
|
// (or the address of a pointer to it, in most cases when it
|
|
// is a C++ class, obviously).
|
|
|
|
// [2] is the throwinfo pointer
|
|
|
|
// [3] is the image base address which is added the 32-bit
|
|
// rva_t fields in throwinfo to get actual 64-bit addresses
|
|
|
|
void * types =
|
|
(void *) (pRecord->ExceptionInformation[3] +
|
|
((RaiseInfo *)pRecord->ExceptionInformation[2])->_types);
|
|
|
|
if (types != 0 && *(DWORD *)types > 0)
|
|
{
|
|
DWORD pType = *((DWORD *)types + 1);
|
|
if (pType != 0 &&
|
|
((ExceptionType *)(pRecord->ExceptionInformation[3]+pType))->_pTypeInfo != 0)
|
|
{
|
|
OUString aRTTIname(
|
|
OStringToOUString(
|
|
reinterpret_cast< __type_info * >(
|
|
((ExceptionType *)(pRecord->ExceptionInformation[3]+pType))->_pTypeInfo )->_m_d_name,
|
|
RTL_TEXTENCODING_ASCII_US ) );
|
|
OUString aUNOname( toUNOname( aRTTIname ) );
|
|
|
|
typelib_TypeDescription * pExcTD = 0;
|
|
typelib_typedescription_getByName(
|
|
&pExcTD, aUNOname.pData );
|
|
if (pExcTD == NULL)
|
|
{
|
|
OUStringBuffer buf;
|
|
buf.appendAscii(
|
|
RTL_CONSTASCII_STRINGPARAM(
|
|
"[mscx_uno bridge error] UNO type of "
|
|
"C++ exception unknown: \"") );
|
|
buf.append( aUNOname );
|
|
buf.appendAscii( RTL_CONSTASCII_STRINGPARAM(
|
|
"\", RTTI-name=\"") );
|
|
buf.append( aRTTIname );
|
|
buf.appendAscii( RTL_CONSTASCII_STRINGPARAM("\"!") );
|
|
RuntimeException exc(
|
|
buf.makeStringAndClear(), Reference< XInterface >() );
|
|
uno_type_any_constructAndConvert(
|
|
pUnoExc, &exc,
|
|
::getCppuType( &exc ).getTypeLibType(), pCpp2Uno );
|
|
#if _MSC_VER < 1400 // msvcr80.dll cleans up, different from former msvcrs
|
|
// if (! rethrow):
|
|
// though this unknown exception leaks now, no user-defined
|
|
// exception is ever thrown thru the binary C-UNO dispatcher
|
|
// call stack.
|
|
#endif
|
|
}
|
|
else
|
|
{
|
|
// construct uno exception any
|
|
uno_any_constructAndConvert(
|
|
pUnoExc, (void *) pRecord->ExceptionInformation[1],
|
|
pExcTD, pCpp2Uno );
|
|
#if _MSC_VER < 1400 // msvcr80.dll cleans up, different from former msvcrs
|
|
if (! rethrow)
|
|
{
|
|
uno_destructData(
|
|
(void *) pRecord->ExceptionInformation[1],
|
|
pExcTD, cpp_release );
|
|
}
|
|
#endif
|
|
typelib_typedescription_release( pExcTD );
|
|
}
|
|
|
|
return EXCEPTION_EXECUTE_HANDLER;
|
|
}
|
|
}
|
|
}
|
|
// though this unknown exception leaks now, no user-defined exception
|
|
// is ever thrown thru the binary C-UNO dispatcher call stack.
|
|
RuntimeException exc(
|
|
OUString( RTL_CONSTASCII_USTRINGPARAM(
|
|
"[mscx_uno bridge error] unexpected "
|
|
"C++ exception occurred!") ),
|
|
Reference< XInterface >() );
|
|
uno_type_any_constructAndConvert(
|
|
pUnoExc, &exc, ::getCppuType( &exc ).getTypeLibType(), pCpp2Uno );
|
|
return EXCEPTION_EXECUTE_HANDLER;
|
|
}
|
|
|
|
}
|
|
|
|
#pragma pack(pop)
|
|
|
|
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|