1 //===-- llvm/CodeGen/MachineModuleInfoImpls.h -------------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file defines object-file format specific implementations of
11 // MachineModuleInfoImpl.
13 //===----------------------------------------------------------------------===//
15 #ifndef LLVM_CODEGEN_MACHINEMODULEINFOIMPLS_H
16 #define LLVM_CODEGEN_MACHINEMODULEINFOIMPLS_H
18 #include "llvm/CodeGen/MachineModuleInfo.h"
23 /// MachineModuleInfoMachO - This is a MachineModuleInfoImpl implementation
24 /// for MachO targets.
25 class MachineModuleInfoMachO : public MachineModuleInfoImpl {
26 /// FnStubs - Darwin '$stub' stubs. The key is something like "Lfoo$stub",
27 /// the value is something like "_foo".
28 DenseMap<MCSymbol *, StubValueTy> FnStubs;
30 /// GVStubs - Darwin '$non_lazy_ptr' stubs. The key is something like
31 /// "Lfoo$non_lazy_ptr", the value is something like "_foo". The extra bit
32 /// is true if this GV is external.
33 DenseMap<MCSymbol *, StubValueTy> GVStubs;
35 /// HiddenGVStubs - Darwin '$non_lazy_ptr' stubs. The key is something like
36 /// "Lfoo$non_lazy_ptr", the value is something like "_foo". Unlike GVStubs
37 /// these are for things with hidden visibility. The extra bit is true if
38 /// this GV is external.
39 DenseMap<MCSymbol *, StubValueTy> HiddenGVStubs;
41 virtual void anchor(); // Out of line virtual method.
43 MachineModuleInfoMachO(const MachineModuleInfo &) {}
45 StubValueTy &getFnStubEntry(MCSymbol *Sym) {
46 assert(Sym && "Key cannot be null");
50 StubValueTy &getGVStubEntry(MCSymbol *Sym) {
51 assert(Sym && "Key cannot be null");
55 StubValueTy &getHiddenGVStubEntry(MCSymbol *Sym) {
56 assert(Sym && "Key cannot be null");
57 return HiddenGVStubs[Sym];
60 /// Accessor methods to return the set of stubs in sorted order.
61 SymbolListTy GetFnStubList() { return getSortedStubs(FnStubs); }
62 SymbolListTy GetGVStubList() { return getSortedStubs(GVStubs); }
63 SymbolListTy GetHiddenGVStubList() { return getSortedStubs(HiddenGVStubs); }
66 /// MachineModuleInfoELF - This is a MachineModuleInfoImpl implementation
68 class MachineModuleInfoELF : public MachineModuleInfoImpl {
69 /// GVStubs - These stubs are used to materialize global addresses in PIC
71 DenseMap<MCSymbol *, StubValueTy> GVStubs;
73 virtual void anchor(); // Out of line virtual method.
75 MachineModuleInfoELF(const MachineModuleInfo &) {}
77 StubValueTy &getGVStubEntry(MCSymbol *Sym) {
78 assert(Sym && "Key cannot be null");
82 /// Accessor methods to return the set of stubs in sorted order.
84 SymbolListTy GetGVStubList() { return getSortedStubs(GVStubs); }
87 } // end namespace llvm