1 //===- MCSymbolXCOFF.h -  ----------------------------------------*- C++ -*-===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 #ifndef LLVM_MC_MCSYMBOLXCOFF_H
9 #define LLVM_MC_MCSYMBOLXCOFF_H
10 
11 #include "llvm/ADT/Optional.h"
12 #include "llvm/ADT/StringRef.h"
13 #include "llvm/BinaryFormat/XCOFF.h"
14 #include "llvm/MC/MCSymbol.h"
15 
16 namespace llvm {
17 
18 class MCSectionXCOFF;
19 
20 class MCSymbolXCOFF : public MCSymbol {
21 public:
MCSymbolXCOFF(const StringMapEntry<bool> * Name,bool isTemporary)22   MCSymbolXCOFF(const StringMapEntry<bool> *Name, bool isTemporary)
23       : MCSymbol(SymbolKindXCOFF, Name, isTemporary) {}
24 
classof(const MCSymbol * S)25   static bool classof(const MCSymbol *S) { return S->isXCOFF(); }
26 
getUnqualifiedName(StringRef Name)27   static StringRef getUnqualifiedName(StringRef Name) {
28     if (Name.back() == ']') {
29       StringRef Lhs, Rhs;
30       std::tie(Lhs, Rhs) = Name.rsplit('[');
31       assert(!Rhs.empty() && "Invalid SMC format in XCOFF symbol.");
32       return Lhs;
33     }
34     return Name;
35   }
36 
setStorageClass(XCOFF::StorageClass SC)37   void setStorageClass(XCOFF::StorageClass SC) {
38     StorageClass = SC;
39   };
40 
getStorageClass()41   XCOFF::StorageClass getStorageClass() const {
42     assert(StorageClass.hasValue() &&
43            "StorageClass not set on XCOFF MCSymbol.");
44     return StorageClass.getValue();
45   }
46 
getUnqualifiedName()47   StringRef getUnqualifiedName() const { return getUnqualifiedName(getName()); }
48 
49   MCSectionXCOFF *getRepresentedCsect() const;
50 
51   void setRepresentedCsect(MCSectionXCOFF *C);
52 
setVisibilityType(XCOFF::VisibilityType SVT)53   void setVisibilityType(XCOFF::VisibilityType SVT) { VisibilityType = SVT; };
54 
getVisibilityType()55   XCOFF::VisibilityType getVisibilityType() const { return VisibilityType; }
56 
hasRename()57   bool hasRename() const { return !SymbolTableName.empty(); }
58 
setSymbolTableName(StringRef STN)59   void setSymbolTableName(StringRef STN) { SymbolTableName = STN; }
60 
getSymbolTableName()61   StringRef getSymbolTableName() const {
62     if (hasRename())
63       return SymbolTableName;
64     return getUnqualifiedName();
65   }
66 
67 private:
68   Optional<XCOFF::StorageClass> StorageClass;
69   MCSectionXCOFF *RepresentedCsect = nullptr;
70   XCOFF::VisibilityType VisibilityType = XCOFF::SYM_V_UNSPECIFIED;
71   StringRef SymbolTableName;
72 };
73 
74 } // end namespace llvm
75 
76 #endif // LLVM_MC_MCSYMBOLXCOFF_H
77