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//===- lib/ReaderWriter/ELF/DefaultTargetHandler.h ------------------------===//
//
// The LLVM Linker
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef LLD_READER_WRITER_ELF_DEFAULT_TARGET_HANDLER_H
#define LLD_READER_WRITER_ELF_DEFAULT_TARGET_HANDLER_H
#include "DefaultLayout.h"
#include "TargetHandler.h"
#include "ELFReader.h"
#include "lld/ReaderWriter/ELFLinkingContext.h"
#include "llvm/ADT/Triple.h"
#include "llvm/Support/ELF.h"
namespace lld {
namespace elf {
template <class ELFT>
class DefaultTargetHandler : public TargetHandler<ELFT> {
public:
DefaultTargetHandler(ELFLinkingContext &context)
: TargetHandler<ELFT>(context) {}
bool doesOverrideELFHeader() { return false; }
void setELFHeader(ELFHeader<ELFT> *elfHeader) {
llvm_unreachable("Target should provide implementation for function ");
}
const TargetRelocationHandler<ELFT> &getRelocationHandler() const {
llvm_unreachable("Target should provide implementation for function ");
}
/// Create a set of Default target sections that a target might needj
void createDefaultSections() {}
/// \brief Add a section to the current Layout
void addSection(Section<ELFT> *section) {}
/// \brief add new symbol file
bool createImplicitFiles(std::vector<std::unique_ptr<File> > &) {
return true;
}
/// \brief Finalize the symbol values
void finalizeSymbolValues() {}
/// \brief allocate Commons, some architectures may move small common
/// symbols over to small data, this would also be used
void allocateCommons() {}
/// \brief create dynamic table
LLD_UNIQUE_BUMP_PTR(DynamicTable<ELFT>) createDynamicTable() {
return LLD_UNIQUE_BUMP_PTR(DynamicTable<ELFT>)(
new (_alloc) DynamicTable<ELFT>(
this->_context, ".dynamic", DefaultLayout<ELFT>::ORDER_DYNAMIC));
}
/// \brief create dynamic symbol table
LLD_UNIQUE_BUMP_PTR(DynamicSymbolTable<ELFT>) createDynamicSymbolTable() {
return LLD_UNIQUE_BUMP_PTR(DynamicSymbolTable<ELFT>)(
new (_alloc) DynamicSymbolTable<ELFT>(
this->_context, ".dynsym",
DefaultLayout<ELFT>::ORDER_DYNAMIC_SYMBOLS));
}
virtual std::unique_ptr<Reader> getObjReader(bool atomizeStrings) {
return std::unique_ptr<Reader>(new ELFObjectReader(atomizeStrings));
}
virtual std::unique_ptr<Reader> getDSOReader(bool useShlibUndefines) {
return std::unique_ptr<Reader>(new ELFDSOReader(useShlibUndefines));
}
protected:
llvm::BumpPtrAllocator _alloc;
};
} // end namespace elf
} // end namespace lld
#endif
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