linux-x64/clang/include/llvm/MC/MCSectionXCOFF.h

//===- MCSectionXCOFF.h - XCOFF Machine Code Sections -----------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file declares the MCSectionXCOFF class.
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_MC_MCSECTIONXCOFF_H
#define LLVM_MC_MCSECTIONXCOFF_H

#include "llvm/ADT/Twine.h"
#include "llvm/BinaryFormat/XCOFF.h"
#include "llvm/MC/MCSection.h"

namespace llvm {

class MCSymbol;

// This class represents an XCOFF `Control Section`, more commonly referred to
// as a csect. A csect represents the smallest possible unit of data/code which
// will be relocated as a single block.
class MCSectionXCOFF final : public MCSection {
  friend class MCContext;

  StringRef Name;
  XCOFF::StorageMappingClass MappingClass;

  MCSectionXCOFF(StringRef Section, XCOFF::StorageMappingClass SMC,
                 SectionKind K, MCSymbol *Begin)
      : MCSection(SV_XCOFF, K, Begin), Name(Section), MappingClass(SMC) {}

public:
  ~MCSectionXCOFF();

  static bool classof(const MCSection *S) {
    return S->getVariant() == SV_XCOFF;
  }

  StringRef getSectionName() const { return Name; }
  XCOFF::StorageMappingClass getMappingClass() const { return MappingClass; }

  void PrintSwitchToSection(const MCAsmInfo &MAI, const Triple &T,
                            raw_ostream &OS,
                            const MCExpr *Subsection) const override;
  bool UseCodeAlign() const override;
  bool isVirtualSection() const override;
};

} // end namespace llvm

#endif