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df325dee9d
indicates that an MCSymbol is external or not. (It's true if it's external.) This will be used to specify the correct information to add to non-lazy pointers. That will be explained further when this bit is used. llvm-svn: 98199
98 lines
3.1 KiB
C++
98 lines
3.1 KiB
C++
//===-- llvm/CodeGen/MachineModuleInfoImpls.h -------------------*- C++ -*-===//
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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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//
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// This file defines object-file format specific implementations of
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// MachineModuleInfoImpl.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_CODEGEN_MACHINEMODULEINFOIMPLS_H
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#define LLVM_CODEGEN_MACHINEMODULEINFOIMPLS_H
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#include "llvm/CodeGen/MachineModuleInfo.h"
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namespace llvm {
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class MCSymbol;
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/// MachineModuleInfoMachO - This is a MachineModuleInfoImpl implementation
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/// for MachO targets.
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class MachineModuleInfoMachO : public MachineModuleInfoImpl {
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/// FnStubs - Darwin '$stub' stubs. The key is something like "Lfoo$stub",
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/// the value is something like "_foo".
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DenseMap<MCSymbol*, StubValueTy> FnStubs;
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/// GVStubs - Darwin '$non_lazy_ptr' stubs. The key is something like
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/// "Lfoo$non_lazy_ptr", the value is something like "_foo". The extra bit
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/// is true if this GV is external.
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DenseMap<MCSymbol*, StubValueTy> GVStubs;
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/// HiddenGVStubs - Darwin '$non_lazy_ptr' stubs. The key is something like
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/// "Lfoo$non_lazy_ptr", the value is something like "_foo". Unlike GVStubs
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/// these are for things with hidden visibility. The extra bit is true if
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/// this GV is external.
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DenseMap<MCSymbol*, StubValueTy> HiddenGVStubs;
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virtual void Anchor(); // Out of line virtual method.
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public:
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MachineModuleInfoMachO(const MachineModuleInfo &) {}
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StubValueTy &getFnStubEntry(MCSymbol *Sym) {
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assert(Sym && "Key cannot be null");
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return FnStubs[Sym];
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}
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StubValueTy &getGVStubEntry(MCSymbol *Sym) {
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assert(Sym && "Key cannot be null");
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return GVStubs[Sym];
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}
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StubValueTy &getHiddenGVStubEntry(MCSymbol *Sym) {
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assert(Sym && "Key cannot be null");
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return HiddenGVStubs[Sym];
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}
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/// Accessor methods to return the set of stubs in sorted order.
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SymbolListTy GetFnStubList() const {
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return GetSortedStubs(FnStubs);
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}
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SymbolListTy GetGVStubList() const {
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return GetSortedStubs(GVStubs);
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}
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SymbolListTy GetHiddenGVStubList() const {
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return GetSortedStubs(HiddenGVStubs);
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}
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};
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/// MachineModuleInfoELF - This is a MachineModuleInfoImpl implementation
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/// for ELF targets.
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class MachineModuleInfoELF : public MachineModuleInfoImpl {
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/// GVStubs - These stubs are used to materialize global addresses in PIC
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/// mode.
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DenseMap<MCSymbol*, StubValueTy> GVStubs;
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virtual void Anchor(); // Out of line virtual method.
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public:
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MachineModuleInfoELF(const MachineModuleInfo &) {}
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StubValueTy &getGVStubEntry(MCSymbol *Sym) {
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assert(Sym && "Key cannot be null");
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return GVStubs[Sym];
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}
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/// Accessor methods to return the set of stubs in sorted order.
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SymbolListTy GetGVStubList() const {
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return GetSortedStubs(GVStubs);
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}
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};
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} // end namespace llvm
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#endif
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