49 lines · cpp
1//===-- M68kELFTargetObjectFile.cpp - M68k Object Files ---------*- C++ -*-===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8///9/// \file10/// This file contains definitions for M68k ELF object file lowering.11///12//===----------------------------------------------------------------------===//13 14#include "M68kTargetObjectFile.h"15 16#include "M68kSubtarget.h"17#include "M68kTargetMachine.h"18 19#include "llvm/BinaryFormat/ELF.h"20#include "llvm/IR/DataLayout.h"21#include "llvm/IR/DerivedTypes.h"22#include "llvm/IR/GlobalVariable.h"23#include "llvm/MC/MCContext.h"24#include "llvm/MC/MCSectionELF.h"25#include "llvm/Support/CommandLine.h"26#include "llvm/Target/TargetMachine.h"27 28using namespace llvm;29 30static cl::opt<unsigned> SSThreshold(31 "m68k-ssection-threshold", cl::Hidden,32 cl::desc("Small data and bss section threshold size (default=8)"),33 cl::init(8));34 35void M68kELFTargetObjectFile::Initialize(MCContext &Ctx,36 const TargetMachine &TM) {37 TargetLoweringObjectFileELF::Initialize(Ctx, TM);38 InitializeELF(TM.Options.UseInitArray);39 40 this->TM = &static_cast<const M68kTargetMachine &>(TM);41 42 // FIXME do we need `.sdata` and `.sbss` explicitly?43 SmallDataSection = getContext().getELFSection(44 ".sdata", ELF::SHT_PROGBITS, ELF::SHF_WRITE | ELF::SHF_ALLOC);45 46 SmallBSSSection = getContext().getELFSection(".sbss", ELF::SHT_NOBITS,47 ELF::SHF_WRITE | ELF::SHF_ALLOC);48}49