/* * Copyright (C) 2011 Apple Inc. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF * THE POSSIBILITY OF SUCH DAMAGE. */ #include "config.h" #include "ImportedFunctionsEnumerator.h" // See <http://msdn.microsoft.com/en-us/magazine/cc301808.aspx> and // <http://msdn.microsoft.com/en-us/windows/hardware/gg463119> for more information about the PE // image format. namespace WebCore { ImportedFunctionsEnumerator::ImportedFunctionsEnumerator(const PEImage& image, const IMAGE_THUNK_DATA* importNameTable, const IMAGE_THUNK_DATA* importAddressTable) : m_image(image) , m_nameTableEntry(importNameTable) , m_addressTableEntry(importAddressTable) { ASSERT(!importNameTable == !importAddressTable); } bool ImportedFunctionsEnumerator::isAtEnd() const { ASSERT(!m_nameTableEntry || !m_nameTableEntry->u1.AddressOfData == !m_addressTableEntry->u1.Function); return !m_nameTableEntry || !m_nameTableEntry->u1.AddressOfData; } void ImportedFunctionsEnumerator::next() { ASSERT(!isAtEnd()); ++m_nameTableEntry; ++m_addressTableEntry; } const char* ImportedFunctionsEnumerator::currentFunctionName() const { ASSERT(m_nameTableEntry); // Ordinal imports have no name. if (IMAGE_SNAP_BY_ORDINAL(m_nameTableEntry->u1.Ordinal)) return 0; const IMAGE_IMPORT_BY_NAME* importByName = static_cast<const IMAGE_IMPORT_BY_NAME*>(m_image.convertRVAToAddress(m_nameTableEntry->u1.AddressOfData)); return reinterpret_cast<const char*>(importByName->Name); } const void* const* ImportedFunctionsEnumerator::addressOfCurrentFunctionPointer() const { ASSERT(m_addressTableEntry); COMPILE_ASSERT(sizeof(void*) == sizeof(m_addressTableEntry->u1.Function), FunctionAddressSizeMatchesPointerSize); return reinterpret_cast<const void* const*>(&m_addressTableEntry->u1.Function); } } // namespace WebCore