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//===-- llvm/CodeGen/MachineModuleInfoImpls.h -------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file defines object-file format specific implementations of
// MachineModuleInfoImpl.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CODEGEN_MACHINEMODULEINFOIMPLS_H
#define LLVM_CODEGEN_MACHINEMODULEINFOIMPLS_H
#include "llvm/CodeGen/MachineModuleInfo.h"
namespace llvm {
class MCSymbol;
/// MachineModuleInfoMachO - This is a MachineModuleInfoImpl implementation
/// for MachO targets.
class MachineModuleInfoMachO : public MachineModuleInfoImpl {
/// FnStubs - Darwin '$stub' stubs. The key is something like "Lfoo$stub",
/// the value is something like "_foo".
DenseMap<MCSymbol*, StubValueTy> FnStubs;
/// GVStubs - Darwin '$non_lazy_ptr' stubs. The key is something like
/// "Lfoo$non_lazy_ptr", the value is something like "_foo". The extra bit
/// is true if this GV is external.
DenseMap<MCSymbol*, StubValueTy> GVStubs;
/// HiddenGVStubs - Darwin '$non_lazy_ptr' stubs. The key is something like
/// "Lfoo$non_lazy_ptr", the value is something like "_foo". Unlike GVStubs
/// these are for things with hidden visibility. The extra bit is true if
/// this GV is external.
DenseMap<MCSymbol*, StubValueTy> HiddenGVStubs;
virtual void anchor(); // Out of line virtual method.
public:
MachineModuleInfoMachO(const MachineModuleInfo &) {}
StubValueTy &getFnStubEntry(MCSymbol *Sym) {
assert(Sym && "Key cannot be null");
return FnStubs[Sym];
}
StubValueTy &getGVStubEntry(MCSymbol *Sym) {
assert(Sym && "Key cannot be null");
return GVStubs[Sym];
}
StubValueTy &getHiddenGVStubEntry(MCSymbol *Sym) {
assert(Sym && "Key cannot be null");
return HiddenGVStubs[Sym];
}
/// Accessor methods to return the set of stubs in sorted order.
SymbolListTy GetFnStubList() {
return getSortedStubs(FnStubs);
}
SymbolListTy GetGVStubList() {
return getSortedStubs(GVStubs);
}
SymbolListTy GetHiddenGVStubList() {
return getSortedStubs(HiddenGVStubs);
}
};
/// MachineModuleInfoELF - This is a MachineModuleInfoImpl implementation
/// for ELF targets.
class MachineModuleInfoELF : public MachineModuleInfoImpl {
/// GVStubs - These stubs are used to materialize global addresses in PIC
/// mode.
DenseMap<MCSymbol*, StubValueTy> GVStubs;
virtual void anchor(); // Out of line virtual method.
public:
MachineModuleInfoELF(const MachineModuleInfo &) {}
StubValueTy &getGVStubEntry(MCSymbol *Sym) {
assert(Sym && "Key cannot be null");
return GVStubs[Sym];
}
/// Accessor methods to return the set of stubs in sorted order.
SymbolListTy GetGVStubList() {
return getSortedStubs(GVStubs);
}
};
} // end namespace llvm
#endif
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