2 * Copyright (C) 2011 Apple Inc. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
7 * 1. Redistributions of source code must retain the above copyright
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13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
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15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
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27 #include "ImportedFunctionsEnumerator.h"
29 // See <http://msdn.microsoft.com/en-us/magazine/cc301808.aspx> and
30 // <http://msdn.microsoft.com/en-us/windows/hardware/gg463119> for more information about the PE
35 ImportedFunctionsEnumerator::ImportedFunctionsEnumerator(const PEImage& image, const IMAGE_THUNK_DATA* importNameTable, const IMAGE_THUNK_DATA* importAddressTable)
37 , m_nameTableEntry(importNameTable)
38 , m_addressTableEntry(importAddressTable)
40 ASSERT(!importNameTable == !importAddressTable);
43 bool ImportedFunctionsEnumerator::isAtEnd() const
45 ASSERT(!m_nameTableEntry || !m_nameTableEntry->u1.AddressOfData == !m_addressTableEntry->u1.Function);
46 return !m_nameTableEntry || !m_nameTableEntry->u1.AddressOfData;
49 void ImportedFunctionsEnumerator::next()
53 ++m_addressTableEntry;
56 const char* ImportedFunctionsEnumerator::currentFunctionName() const
58 ASSERT(m_nameTableEntry);
60 // Ordinal imports have no name.
61 if (IMAGE_SNAP_BY_ORDINAL(m_nameTableEntry->u1.Ordinal))
64 const IMAGE_IMPORT_BY_NAME* importByName = static_cast<const IMAGE_IMPORT_BY_NAME*>(m_image.convertRVAToAddress(m_nameTableEntry->u1.AddressOfData));
65 return reinterpret_cast<const char*>(importByName->Name);
68 const void* const* ImportedFunctionsEnumerator::addressOfCurrentFunctionPointer() const
70 ASSERT(m_addressTableEntry);
71 COMPILE_ASSERT(sizeof(void*) == sizeof(m_addressTableEntry->u1.Function), FunctionAddressSizeMatchesPointerSize);
72 return reinterpret_cast<const void* const*>(&m_addressTableEntry->u1.Function);
75 } // namespace WebCore