be03e2a861
This also adds a simple relocation change for dynamic executables to x86-64 ELF. llvm-svn: 175208
50 lines
1.3 KiB
C++
50 lines
1.3 KiB
C++
//===- lib/ReaderWriter/MachO/ExecutableAtoms.hpp -------------------------===//
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//
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// The LLVM Linker
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLD_READER_WRITER_MACHO_EXECUTABLE_ATOM_H_
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#define LLD_READER_WRITER_MACHO_EXECUTABLE_ATOM_H_
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#include "lld/Core/DefinedAtom.h"
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#include "lld/Core/UndefinedAtom.h"
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#include "lld/Core/File.h"
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#include "lld/Core/Reference.h"
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#include "lld/Core/TargetInfo.h"
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#include "lld/ReaderWriter/Simple.h"
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namespace lld {
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namespace mach_o {
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//
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// CRuntimeFile adds an UndefinedAtom for "_main" so that the Resolving
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// phase will fail if "_main" is undefined.
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//
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class CRuntimeFile : public SimpleFile {
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public:
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CRuntimeFile(const MachOTargetInfo &ti)
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: SimpleFile(ti, "C runtime"), _undefMain(*this, "_main") {
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// only main executables need _main
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if (ti.getLinkerOptions()._outputKind == OutputKind::StaticExecutable ||
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ti.getLinkerOptions()._outputKind == OutputKind::DynamicExecutable)
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this->addAtom(_undefMain);
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}
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private:
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SimpleUndefinedAtom _undefMain;
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};
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} // namespace mach_o
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} // namespace lld
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#endif // LLD_READER_WRITER_MACHO_EXECUTABLE_ATOM_H_
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