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ac57e6e498
cleanup, removed some #includes and moved Object Code Emitter out-of-line. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74813 91177308-0d34-0410-b5e6-96231b3b80d8
72 lines
1.9 KiB
C++
72 lines
1.9 KiB
C++
//===-- MachOEmitter.h - Target-independent Mach-O Emitter class ----------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#ifndef MACHOCODEEMITTER_H
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#define MACHOCODEEMITTER_H
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#include "MachOWriter.h"
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namespace llvm {
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/// MachOCodeEmitter - This class is used by the MachOWriter to emit the code
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/// for functions to the Mach-O file.
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class MachOCodeEmitter : public ObjectCodeEmitter {
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MachOWriter &MOW;
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/// Target machine description.
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TargetMachine &TM;
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/// is64Bit/isLittleEndian - This information is inferred from the target
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/// machine directly, indicating what header values and flags to set.
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bool is64Bit, isLittleEndian;
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const TargetAsmInfo *TAI;
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/// Relocations - These are the relocations that the function needs, as
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/// emitted.
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std::vector<MachineRelocation> Relocations;
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std::map<uint64_t, uintptr_t> Labels;
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public:
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MachOCodeEmitter(MachOWriter &mow, MachOSection &mos) :
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ObjectCodeEmitter(&mos), MOW(mow), TM(MOW.TM) {
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is64Bit = TM.getTargetData()->getPointerSizeInBits() == 64;
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isLittleEndian = TM.getTargetData()->isLittleEndian();
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TAI = TM.getTargetAsmInfo();
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}
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virtual void startFunction(MachineFunction &MF);
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virtual bool finishFunction(MachineFunction &MF);
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virtual void addRelocation(const MachineRelocation &MR) {
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Relocations.push_back(MR);
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}
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void emitConstantPool(MachineConstantPool *MCP);
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void emitJumpTables(MachineJumpTableInfo *MJTI);
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virtual void emitLabel(uint64_t LabelID) {
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Labels[LabelID] = getCurrentPCOffset();
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}
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virtual uintptr_t getLabelAddress(uint64_t Label) const {
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return Labels.find(Label)->second;
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}
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virtual void setModuleInfo(llvm::MachineModuleInfo* MMI) { }
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}; // end class MachOCodeEmitter
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} // end namespace llvm
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#endif
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