X86TargetObjectFile.h revision ebe69fe11e48d322045d5949c83283927a0d790b 
1//===-- X86TargetObjectFile.h - X86 Object Info -----------------*- 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#ifndef LLVM_LIB_TARGET_X86_X86TARGETOBJECTFILE_H
11#define LLVM_LIB_TARGET_X86_X86TARGETOBJECTFILE_H
12
13#include "llvm/CodeGen/TargetLoweringObjectFileImpl.h"
14#include "llvm/Target/TargetLoweringObjectFile.h"
15
16namespace llvm {
17
18  /// X86_64MachoTargetObjectFile - This TLOF implementation is used for Darwin
19  /// x86-64.
20  class X86_64MachoTargetObjectFile : public TargetLoweringObjectFileMachO {
21  public:
22    X86_64MachoTargetObjectFile();
23
24    const MCExpr *
25    getTTypeGlobalReference(const GlobalValue *GV, unsigned Encoding,
26                            Mangler &Mang, const TargetMachine &TM,
27                            MachineModuleInfo *MMI,
28                            MCStreamer &Streamer) const override;
29
30    // getCFIPersonalitySymbol - The symbol that gets passed to
31    // .cfi_personality.
32    MCSymbol *getCFIPersonalitySymbol(const GlobalValue *GV, Mangler &Mang,
33                                      const TargetMachine &TM,
34                                      MachineModuleInfo *MMI) const override;
35
36    const MCExpr *
37      getIndirectSymViaGOTPCRel(const MCSymbol *Sym,
38                                int64_t Offset) const override;
39  };
40
41  /// X86LinuxTargetObjectFile - This implementation is used for linux x86
42  /// and x86-64.
43  class X86LinuxTargetObjectFile : public TargetLoweringObjectFileELF {
44    void Initialize(MCContext &Ctx, const TargetMachine &TM) override;
45
46    /// \brief Describe a TLS variable address within debug info.
47    const MCExpr *getDebugThreadLocalSymbol(const MCSymbol *Sym) const override;
48  };
49
50  /// \brief This implementation is used for Windows targets on x86 and x86-64.
51  class X86WindowsTargetObjectFile : public TargetLoweringObjectFileCOFF {
52    const MCExpr *
53    getExecutableRelativeSymbol(const ConstantExpr *CE, Mangler &Mang,
54                                const TargetMachine &TM) const override;
55
56    /// \brief Given a mergeable constant with the specified size and relocation
57    /// information, return a section that it should be placed in.
58    const MCSection *getSectionForConstant(SectionKind Kind,
59                                           const Constant *C) const override;
60  };
61
62} // end namespace llvm
63
64#endif
65