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//===- lib/ReaderWriter/ELF/Writer.cpp ------------------------------------===//
//
// The LLVM Linker
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "ExecutableWriter.h"
#include "DynamicLibraryWriter.h"
using namespace llvm;
using namespace llvm::object;
namespace lld {
std::unique_ptr<Writer> createWriterELF(const ELFTargetInfo &TI) {
using llvm::object::ELFType;
// Set the default layout to be the static executable layout
// We would set the layout to a dynamic executable layout
// if we came across any shared libraries in the process
const LinkerOptions &options = TI.getLinkerOptions();
if ((options._outputKind == OutputKind::StaticExecutable) ||
(options._outputKind == OutputKind::DynamicExecutable)) {
if (!TI.is64Bits() && TI.isLittleEndian())
return std::unique_ptr<Writer>(new
elf::ExecutableWriter<ELFType<support::little, 4, false>>(TI));
else if (TI.is64Bits() && TI.isLittleEndian())
return std::unique_ptr<Writer>(new
elf::ExecutableWriter<ELFType<support::little, 8, true>>(TI));
else if (!TI.is64Bits() && !TI.isLittleEndian())
return std::unique_ptr<Writer>(new
elf::ExecutableWriter<ELFType<support::big, 4, false>>(TI));
else if (TI.is64Bits() && !TI.isLittleEndian())
return std::unique_ptr<Writer>(new
elf::ExecutableWriter<ELFType<support::big, 8, true>>(TI));
llvm_unreachable("Invalid Options!");
} else if (options._outputKind == OutputKind::Shared) {
if (!TI.is64Bits() && TI.isLittleEndian())
return std::unique_ptr<Writer>(new
elf::DynamicLibraryWriter<ELFType<support::little, 4, false>>(TI));
else if (TI.is64Bits() && TI.isLittleEndian())
return std::unique_ptr<Writer>(new
elf::DynamicLibraryWriter<ELFType<support::little, 8, true>>(TI));
else if (!TI.is64Bits() && !TI.isLittleEndian())
return std::unique_ptr<Writer>(new
elf::DynamicLibraryWriter<ELFType<support::big, 4, false>>(TI));
else if (TI.is64Bits() && !TI.isLittleEndian())
return std::unique_ptr<Writer>(new
elf::DynamicLibraryWriter<ELFType<support::big, 8, true>>(TI));
llvm_unreachable("Invalid Options!");
}
else
llvm_unreachable("unsupported options");
}
}
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