2946cd7010
to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
102 lines
3.0 KiB
C++
102 lines
3.0 KiB
C++
//===---- lib/ReaderWriter/MachO/SectCreateFile.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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#ifndef LLD_READER_WRITER_MACHO_SECTCREATE_FILE_H
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#define LLD_READER_WRITER_MACHO_SECTCREATE_FILE_H
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#include "lld/Core/DefinedAtom.h"
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#include "lld/Core/Simple.h"
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#include "lld/ReaderWriter/MachOLinkingContext.h"
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namespace lld {
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namespace mach_o {
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//
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// A FlateNamespaceFile instance may be added as a resolution source of last
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// resort, depending on how -flat_namespace and -undefined are set.
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//
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class SectCreateFile : public File {
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public:
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class SectCreateAtom : public SimpleDefinedAtom {
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public:
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SectCreateAtom(const File &file, StringRef segName, StringRef sectName,
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std::unique_ptr<MemoryBuffer> content)
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: SimpleDefinedAtom(file),
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_combinedName((segName + "/" + sectName).str()),
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_content(std::move(content)) {}
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~SectCreateAtom() override = default;
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uint64_t size() const override { return _content->getBufferSize(); }
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Scope scope() const override { return scopeGlobal; }
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ContentType contentType() const override { return typeSectCreate; }
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SectionChoice sectionChoice() const override { return sectionCustomRequired; }
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StringRef customSectionName() const override { return _combinedName; }
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DeadStripKind deadStrip() const override { return deadStripNever; }
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ArrayRef<uint8_t> rawContent() const override {
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const uint8_t *data =
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reinterpret_cast<const uint8_t*>(_content->getBufferStart());
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return ArrayRef<uint8_t>(data, _content->getBufferSize());
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}
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StringRef segmentName() const { return _segName; }
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StringRef sectionName() const { return _sectName; }
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private:
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std::string _combinedName;
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StringRef _segName;
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StringRef _sectName;
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std::unique_ptr<MemoryBuffer> _content;
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};
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SectCreateFile() : File("sectcreate", kindSectCreateObject) {}
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void addSection(StringRef seg, StringRef sect,
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std::unique_ptr<MemoryBuffer> content) {
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_definedAtoms.push_back(
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new (allocator()) SectCreateAtom(*this, seg, sect, std::move(content)));
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}
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const AtomRange<DefinedAtom> defined() const override {
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return _definedAtoms;
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}
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const AtomRange<UndefinedAtom> undefined() const override {
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return _noUndefinedAtoms;
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}
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const AtomRange<SharedLibraryAtom> sharedLibrary() const override {
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return _noSharedLibraryAtoms;
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}
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const AtomRange<AbsoluteAtom> absolute() const override {
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return _noAbsoluteAtoms;
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}
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void clearAtoms() override {
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_definedAtoms.clear();
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_noUndefinedAtoms.clear();
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_noSharedLibraryAtoms.clear();
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_noAbsoluteAtoms.clear();
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}
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private:
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AtomVector<DefinedAtom> _definedAtoms;
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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_SECTCREATE_FILE_H
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