llvm-project/lld/lib/ReaderWriter/ELF/Hexagon/HexagonDynamicLibraryWriter.h

68 lines
2.1 KiB
C++

//===- lib/ReaderWriter/ELF/Hexagon/HexagonDynamicLibraryWriter.h ---------===//
//
// The LLVM Linker
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef HEXAGON_DYNAMIC_LIBRARY_WRITER_H
#define HEXAGON_DYNAMIC_LIBRARY_WRITER_H
#include "DynamicLibraryWriter.h"
#include "HexagonLinkingContext.h"
namespace lld {
namespace elf {
class HexagonTargetLayout;
class HexagonDynamicLibraryWriter : public DynamicLibraryWriter<ELF32LE> {
public:
HexagonDynamicLibraryWriter(HexagonLinkingContext &ctx,
HexagonTargetLayout &layout);
protected:
// Add any runtime files and their atoms to the output
void createImplicitFiles(std::vector<std::unique_ptr<File>> &) override;
void finalizeDefaultAtomValues() override;
std::error_code setELFHeader() override {
DynamicLibraryWriter::setELFHeader();
setHexagonELFHeader(*_elfHeader);
return std::error_code();
}
private:
HexagonLinkingContext &_ctx;
HexagonTargetLayout &_targetLayout;
};
HexagonDynamicLibraryWriter::HexagonDynamicLibraryWriter(
HexagonLinkingContext &ctx, HexagonTargetLayout &layout)
: DynamicLibraryWriter(ctx, layout), _ctx(ctx), _targetLayout(layout) {}
void HexagonDynamicLibraryWriter::createImplicitFiles(
std::vector<std::unique_ptr<File>> &result) {
DynamicLibraryWriter::createImplicitFiles(result);
// Add the default atoms as defined for hexagon
auto file =
llvm::make_unique<RuntimeFile<ELF32LE>>(_ctx, "Hexagon runtime file");
file->addAbsoluteAtom("_GLOBAL_OFFSET_TABLE_");
file->addAbsoluteAtom("_DYNAMIC");
result.push_back(std::move(file));
}
void HexagonDynamicLibraryWriter::finalizeDefaultAtomValues() {
// Finalize the atom values that are part of the parent.
DynamicLibraryWriter::finalizeDefaultAtomValues();
if (_ctx.isDynamic())
finalizeHexagonRuntimeAtomValues(_targetLayout);
}
} // namespace elf
} // namespace lld
#endif // HEXAGON_DYNAMIC_LIBRARY_WRITER_H