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      1 //===- MCSymbolCOFF.h -  ----------------------------------------*- 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_MC_MCSYMBOLCOFF_H
     11 #define LLVM_MC_MCSYMBOLCOFF_H
     12 
     13 #include "llvm/MC/MCSymbol.h"
     14 #include <cstdint>
     15 
     16 namespace llvm {
     17 
     18 class MCSymbolCOFF : public MCSymbol {
     19   /// This corresponds to the e_type field of the COFF symbol.
     20   mutable uint16_t Type = 0;
     21 
     22   enum SymbolFlags : uint16_t {
     23     SF_ClassMask = 0x00FF,
     24     SF_ClassShift = 0,
     25 
     26     SF_WeakExternal = 0x0100,
     27     SF_SafeSEH = 0x0200,
     28   };
     29 
     30 public:
     31   MCSymbolCOFF(const StringMapEntry<bool> *Name, bool isTemporary)
     32       : MCSymbol(SymbolKindCOFF, Name, isTemporary) {}
     33 
     34   uint16_t getType() const {
     35     return Type;
     36   }
     37   void setType(uint16_t Ty) const {
     38     Type = Ty;
     39   }
     40 
     41   uint16_t getClass() const {
     42     return (getFlags() & SF_ClassMask) >> SF_ClassShift;
     43   }
     44   void setClass(uint16_t StorageClass) const {
     45     modifyFlags(StorageClass << SF_ClassShift, SF_ClassMask);
     46   }
     47 
     48   bool isWeakExternal() const {
     49     return getFlags() & SF_WeakExternal;
     50   }
     51   void setIsWeakExternal() const {
     52     modifyFlags(SF_WeakExternal, SF_WeakExternal);
     53   }
     54 
     55   bool isSafeSEH() const {
     56     return getFlags() & SF_SafeSEH;
     57   }
     58   void setIsSafeSEH() const {
     59     modifyFlags(SF_SafeSEH, SF_SafeSEH);
     60   }
     61 
     62   static bool classof(const MCSymbol *S) { return S->isCOFF(); }
     63 };
     64 
     65 } // end namespace llvm
     66 
     67 #endif // LLVM_MC_MCSYMBOLCOFF_H
     68