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Side by Side Diff: Source/WebCore/platform/win/DelayLoadedModulesEnumerator.cpp

Issue 13642009: WebCore: Remove PLATFORM(WIN) files we do not use. (Closed) Base URL: svn://svn.chromium.org/blink/trunk
Patch Set: Created 7 years, 8 months ago
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1 /*
2 * Copyright (C) 2011 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23 * THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26 #include "config.h"
27 #include "DelayLoadedModulesEnumerator.h"
28
29 #include "ImportedFunctionsEnumerator.h"
30 #include <delayimp.h>
31
32 // See <http://msdn.microsoft.com/en-us/magazine/cc301808.aspx> and
33 // <http://msdn.microsoft.com/en-us/windows/hardware/gg463119> for more informat ion about the PE
34 // image format.
35
36 namespace WebCore {
37
38 DelayLoadedModulesEnumerator::DelayLoadedModulesEnumerator(const PEImage& image)
39 : m_image(image)
40 {
41 if (m_image.isValid())
42 m_descriptor = static_cast<const ImgDelayDescr*>(m_image.dataDirectoryEn tryAddress(IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT));
43 else
44 m_descriptor = 0;
45 }
46
47 bool DelayLoadedModulesEnumerator::isAtEnd() const
48 {
49 return !m_descriptor || !m_descriptor->rvaHmod;
50 }
51
52 void DelayLoadedModulesEnumerator::next()
53 {
54 ASSERT(!isAtEnd());
55 ++m_descriptor;
56 }
57
58 const char* DelayLoadedModulesEnumerator::currentModuleName() const
59 {
60 ASSERT(!isAtEnd());
61 return static_cast<const char*>(convertPotentialRVAToAddress(m_descriptor->r vaDLLName));
62 }
63
64 ImportedFunctionsEnumerator DelayLoadedModulesEnumerator::functionsEnumerator() const
65 {
66 ASSERT(!isAtEnd());
67
68 const IMAGE_THUNK_DATA* importNameTable = static_cast<const IMAGE_THUNK_DATA *>(convertPotentialRVAToAddress(m_descriptor->rvaINT));
69 const IMAGE_THUNK_DATA* importAddressTable = static_cast<const IMAGE_THUNK_D ATA*>(convertPotentialRVAToAddress(m_descriptor->rvaIAT));
70
71 return ImportedFunctionsEnumerator(m_image, importNameTable, importAddressTa ble);
72 }
73
74 const void* DelayLoadedModulesEnumerator::convertPotentialRVAToAddress(DWORD pot entialRVA) const
75 {
76 ASSERT(!isAtEnd());
77
78 if (!(m_descriptor->grAttrs & dlattrRva)) {
79 // m_image is a pre-VC7.0 image, so addresses stored in the ImageDelayDe scr are non-relative.
80 return reinterpret_cast<void*>(potentialRVA);
81 }
82
83 return m_image.convertRVAToAddress(potentialRVA);
84 }
85
86 } // namespace WebCore
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