MCSection.h revision 33adcfb4d217f5f23d9bde8ba02b8e48f9605fc5 
1//===- MCSection.h - Machine Code Sections ----------------------*- 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 declares the MCSection class.
11//
12//===----------------------------------------------------------------------===//
13
14#ifndef LLVM_MC_MCSECTION_H
15#define LLVM_MC_MCSECTION_H
16
17#include <string>
18#include "llvm/ADT/StringRef.h"
19#include "llvm/MC/SectionKind.h"
20
21namespace llvm {
22  class MCContext;
23  class MCAsmInfo;
24  class raw_ostream;
25
26  /// MCSection - Instances of this class represent a uniqued identifier for a
27  /// section in the current translation unit.  The MCContext class uniques and
28  /// creates these.
29  class MCSection {
30    MCSection(const MCSection&);      // DO NOT IMPLEMENT
31    void operator=(const MCSection&); // DO NOT IMPLEMENT
32  protected:
33    MCSection(SectionKind K) : Kind(K) {}
34    SectionKind Kind;
35  public:
36    virtual ~MCSection();
37
38    SectionKind getKind() const { return Kind; }
39
40    virtual void PrintSwitchToSection(const MCAsmInfo &MAI,
41                                      raw_ostream &OS) const = 0;
42  };
43
44  class MCSectionCOFF : public MCSection {
45    std::string Name;
46
47    /// IsDirective - This is true if the section name is a directive, not
48    /// something that should be printed with ".section".
49    ///
50    /// FIXME: This is a hack.  Switch to a semantic view of the section instead
51    /// of a syntactic one.
52    bool IsDirective;
53
54    MCSectionCOFF(const StringRef &name, bool isDirective, SectionKind K)
55      : MCSection(K), Name(name), IsDirective(isDirective) {
56    }
57  public:
58
59    static MCSectionCOFF *Create(const StringRef &Name, bool IsDirective,
60                                   SectionKind K, MCContext &Ctx);
61
62    const std::string &getName() const { return Name; }
63    bool isDirective() const { return IsDirective; }
64
65    virtual void PrintSwitchToSection(const MCAsmInfo &MAI,
66                                      raw_ostream &OS) const;
67  };
68
69} // end namespace llvm
70
71#endif
72