1//===-- llvm/CodeGen/MachineModuleInfoImpls.h -------------------*- C++ -*-===// 2// 3// The LLVM Compiler Infrastructure 4// 5// This file is distributed under the University of Illinois Open Source 6// License. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9// 10// This file defines object-file format specific implementations of 11// MachineModuleInfoImpl. 12// 13//===----------------------------------------------------------------------===// 14 15#ifndef LLVM_CODEGEN_MACHINEMODULEINFOIMPLS_H 16#define LLVM_CODEGEN_MACHINEMODULEINFOIMPLS_H 17 18#include "llvm/CodeGen/MachineModuleInfo.h" 19 20namespace llvm { 21class MCSymbol; 22 23/// MachineModuleInfoMachO - This is a MachineModuleInfoImpl implementation 24/// for MachO targets. 25class MachineModuleInfoMachO : public MachineModuleInfoImpl { 26 /// GVStubs - Darwin '$non_lazy_ptr' stubs. The key is something like 27 /// "Lfoo$non_lazy_ptr", the value is something like "_foo". The extra bit 28 /// is true if this GV is external. 29 DenseMap<MCSymbol *, StubValueTy> GVStubs; 30 31 /// ThreadLocalGVStubs - Darwin '$non_lazy_ptr' stubs. The key is something 32 /// like "Lfoo$non_lazy_ptr", the value is something like "_foo". The extra 33 /// bit is true if this GV is external. 34 DenseMap<MCSymbol *, StubValueTy> ThreadLocalGVStubs; 35 36 virtual void anchor(); // Out of line virtual method. 37public: 38 MachineModuleInfoMachO(const MachineModuleInfo &) {} 39 40 StubValueTy &getGVStubEntry(MCSymbol *Sym) { 41 assert(Sym && "Key cannot be null"); 42 return GVStubs[Sym]; 43 } 44 45 StubValueTy &getThreadLocalGVStubEntry(MCSymbol *Sym) { 46 assert(Sym && "Key cannot be null"); 47 return ThreadLocalGVStubs[Sym]; 48 } 49 50 /// Accessor methods to return the set of stubs in sorted order. 51 SymbolListTy GetGVStubList() { return getSortedStubs(GVStubs); } 52 SymbolListTy GetThreadLocalGVStubList() { 53 return getSortedStubs(ThreadLocalGVStubs); 54 } 55}; 56 57/// MachineModuleInfoELF - This is a MachineModuleInfoImpl implementation 58/// for ELF targets. 59class MachineModuleInfoELF : public MachineModuleInfoImpl { 60 /// GVStubs - These stubs are used to materialize global addresses in PIC 61 /// mode. 62 DenseMap<MCSymbol *, StubValueTy> GVStubs; 63 64 virtual void anchor(); // Out of line virtual method. 65public: 66 MachineModuleInfoELF(const MachineModuleInfo &) {} 67 68 StubValueTy &getGVStubEntry(MCSymbol *Sym) { 69 assert(Sym && "Key cannot be null"); 70 return GVStubs[Sym]; 71 } 72 73 /// Accessor methods to return the set of stubs in sorted order. 74 75 SymbolListTy GetGVStubList() { return getSortedStubs(GVStubs); } 76}; 77 78} // end namespace llvm 79 80#endif 81