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66 lines
2.1 KiB
C++
66 lines
2.1 KiB
C++
//===-- WindowsManifestMerger.h ---------------------------------*- C++-*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===---------------------------------------------------------------------===//
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//
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// This file provides a utility for merging Microsoft .manifest files. These
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// files are xml documents which contain meta-information about applications,
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// such as whether or not admin access is required, system compatibility,
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// versions, etc. Part of the linking process of an executable may require
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// merging several of these .manifest files using a tree-merge following
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// specific rules. Unfortunately, these rules are not documented well
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// anywhere. However, a careful investigation of the behavior of the original
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// Microsoft Manifest Tool (mt.exe) revealed the rules of this merge. As the
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// saying goes, code is the best documentation, so please look below if you are
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// interested in the exact merging requirements.
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//
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// Ref:
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// https://msdn.microsoft.com/en-us/library/windows/desktop/aa374191(v=vs.85).aspx
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//
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//===---------------------------------------------------------------------===//
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#ifndef LLVM_WINDOWSMANIFEST_WINDOWSMANIFESTMERGER_H
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#define LLVM_WINDOWSMANIFEST_WINDOWSMANIFESTMERGER_H
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#include "llvm/Support/Error.h"
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namespace llvm {
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class MemoryBuffer;
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namespace windows_manifest {
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bool isAvailable();
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class WindowsManifestError : public ErrorInfo<WindowsManifestError, ECError> {
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public:
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static char ID;
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WindowsManifestError(const Twine &Msg);
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void log(raw_ostream &OS) const override;
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private:
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std::string Msg;
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};
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class WindowsManifestMerger {
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public:
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WindowsManifestMerger();
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~WindowsManifestMerger();
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Error merge(const MemoryBuffer &Manifest);
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// Returns vector containing merged xml manifest, or uninitialized vector for
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// empty manifest.
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std::unique_ptr<MemoryBuffer> getMergedManifest();
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private:
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class WindowsManifestMergerImpl;
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std::unique_ptr<WindowsManifestMergerImpl> Impl;
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};
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} // namespace windows_manifest
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} // namespace llvm
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#endif
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