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:
22   MCSymbolXCOFF(const StringMapEntry<bool> *Name, bool isTemporary)
23       : MCSymbol(SymbolKindXCOFF, Name, isTemporary) {}
24 
25   static bool classof(const MCSymbol *S) { return S->isXCOFF(); }
26 
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 
37   void setStorageClass(XCOFF::StorageClass SC) {
38     assert((!StorageClass.hasValue() || StorageClass.getValue() == SC) &&
39            "Redefining StorageClass of XCOFF MCSymbol.");
40     StorageClass = SC;
41   };
42 
43   XCOFF::StorageClass getStorageClass() const {
44     assert(StorageClass.hasValue() &&
45            "StorageClass not set on XCOFF MCSymbol.");
46     return StorageClass.getValue();
47   }
48 
49   StringRef getUnqualifiedName() const { return getUnqualifiedName(getName()); }
50 
51   bool hasRepresentedCsectSet() const { return RepresentedCsect != nullptr; }
52 
53   MCSectionXCOFF *getRepresentedCsect() const;
54 
55   void setRepresentedCsect(MCSectionXCOFF *C);
56 
57   void setVisibilityType(XCOFF::VisibilityType SVT) { VisibilityType = SVT; };
58 
59   XCOFF::VisibilityType getVisibilityType() const { return VisibilityType; }
60 
61   bool hasRename() const { return !SymbolTableName.empty(); }
62 
63   void setSymbolTableName(StringRef STN) { SymbolTableName = STN; }
64 
65   StringRef getSymbolTableName() const {
66     if (hasRename())
67       return SymbolTableName;
68     return getUnqualifiedName();
69   }
70 
71 private:
72   Optional<XCOFF::StorageClass> StorageClass;
73   MCSectionXCOFF *RepresentedCsect = nullptr;
74   XCOFF::VisibilityType VisibilityType = XCOFF::SYM_V_UNSPECIFIED;
75   StringRef SymbolTableName;
76 };
77 
78 } // end namespace llvm
79 
80 #endif // LLVM_MC_MCSYMBOLXCOFF_H
81