diff options
Diffstat (limited to 'bridges/source/cpp_uno/mingw_intel/callvirtualmethod.cxx')
| -rw-r--r-- | bridges/source/cpp_uno/mingw_intel/callvirtualmethod.cxx | 137 |
1 files changed, 0 insertions, 137 deletions
diff --git a/bridges/source/cpp_uno/mingw_intel/callvirtualmethod.cxx b/bridges/source/cpp_uno/mingw_intel/callvirtualmethod.cxx deleted file mode 100644 index 9b826bfc4abb..000000000000 --- a/bridges/source/cpp_uno/mingw_intel/callvirtualmethod.cxx +++ /dev/null @@ -1,137 +0,0 @@ -/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ -/* - * This file is part of the LibreOffice project. - * - * This Source Code Form is subject to the terms of the Mozilla Public - * License, v. 2.0. If a copy of the MPL was not distributed with this - * file, You can obtain one at http://mozilla.org/MPL/2.0/. - * - * This file incorporates work covered by the following license notice: - * - * Licensed to the Apache Software Foundation (ASF) under one or more - * contributor license agreements. See the NOTICE file distributed - * with this work for additional information regarding copyright - * ownership. The ASF licenses this file to you under the Apache - * License, Version 2.0 (the "License"); you may not use this file - * except in compliance with the License. You may obtain a copy of - * the License at http://www.apache.org/licenses/LICENSE-2.0 . - */ - -#include "sal/config.h" - -#include "cppu/macros.hxx" -#include "sal/types.h" -#include "typelib/typeclass.h" -#include "typelib/typedescription.h" - -#include "callvirtualmethod.hxx" -#include "share.hxx" -#include "smallstruct.hxx" - -// For some reason, callVirtualMethod needs to be in a source file of its own, -// so that stack unwinding upon a thrown exception from within the asm block -// call works, at least with GCC 4.7.0 and --enable-dbgutil. - -// The call instruction within the asm section of callVirtualMethod may throw -// exceptions. So that the compiler handles this correctly, it is important -// that (a) callVirtualMethod might call dummy_can_throw_anything (although this -// never happens at runtime), which in turn can throw exceptions, and (b) -// callVirtualMethod is not inlined at its call site (so that any exceptions are -// caught which are thrown from the instruction calling callVirtualMethod). [It -// is unclear how much of this comment is still relevant -- see the above -// comment.] -void CPPU_CURRENT_NAMESPACE::callVirtualMethod( - void * pAdjustedThisPtr, sal_Int32 nVtableIndex, void * pRegisterReturn, - typelib_TypeDescription const * returnType, sal_Int32 * pStackLongs, - sal_Int32 nStackLongs) -{ - // parameter list is mixed list of * and values - // reference parameters are pointers - - assert(pStackLongs && pAdjustedThisPtr); - static_assert( (sizeof(void *) == 4) && (sizeof(sal_Int32) == 4), "### unexpected size of int!"); - assert(nStackLongs && pStackLongs && "### no stack in callVirtualMethod !"); - - // never called - if (! pAdjustedThisPtr) CPPU_CURRENT_NAMESPACE::dummy_can_throw_anything("xxx"); // address something - - long edx, eax; // for register returns - void * stackptr; - asm volatile ( - "mov %%esp, %2\n\t" - // copy values - "mov %3, %%eax\n\t" - "mov %%eax, %%edx\n\t" - "dec %%edx\n\t" - "shl $2, %%edx\n\t" - "add %4, %%edx\n" - "Lcopy:\n\t" - "pushl 0(%%edx)\n\t" - "sub $4, %%edx\n\t" - "dec %%eax\n\t" - "jne Lcopy\n\t" - // do the actual call - "mov %5, %%edx\n\t" - "mov 0(%%edx), %%edx\n\t" - "mov %6, %%eax\n\t" - "shl $2, %%eax\n\t" - "add %%eax, %%edx\n\t" - "mov 0(%%edx), %%edx\n\t" - "call *%%edx\n\t" - // save return registers - "mov %%eax, %0\n\t" - "mov %%edx, %1\n\t" - // cleanup stack - "mov %2, %%esp\n\t" - : "=m"(eax), "=m"(edx), "=m"(stackptr) - : "m"(nStackLongs), "m"(pStackLongs), "m"(pAdjustedThisPtr), "m"(nVtableIndex) - : "eax", "ecx", "edx" ); - switch( returnType->eTypeClass ) - { - case typelib_TypeClass_VOID: - break; - case typelib_TypeClass_HYPER: - case typelib_TypeClass_UNSIGNED_HYPER: - ((long*)pRegisterReturn)[1] = edx; - case typelib_TypeClass_LONG: - case typelib_TypeClass_UNSIGNED_LONG: - case typelib_TypeClass_CHAR: - case typelib_TypeClass_ENUM: - ((long*)pRegisterReturn)[0] = eax; - break; - case typelib_TypeClass_SHORT: - case typelib_TypeClass_UNSIGNED_SHORT: - *(unsigned short*)pRegisterReturn = eax; - break; - case typelib_TypeClass_BOOLEAN: - case typelib_TypeClass_BYTE: - *(unsigned char*)pRegisterReturn = eax; - break; - case typelib_TypeClass_FLOAT: - asm ( "fstps %0" : : "m"(*(char *)pRegisterReturn) ); - break; - case typelib_TypeClass_DOUBLE: - asm ( "fstpl %0\n\t" : : "m"(*(char *)pRegisterReturn) ); - break; - case typelib_TypeClass_STRUCT: - if (bridges::cpp_uno::shared::isSmallStruct(returnType)) { - if (returnType->nSize <= 1) { - *(unsigned char*)pRegisterReturn = eax; - } - else if (returnType->nSize <= 2) { - *(unsigned short*)pRegisterReturn = eax; - } - else if (returnType->nSize <= 8) { - ((long*)pRegisterReturn)[0] = eax; - if (returnType->nSize > 4) { - ((long*)pRegisterReturn)[1] = edx; - } - } - } - break; - default: - break; - } -} - -/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |