| 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/StringRef.h" |
| 12 | #include "llvm/BinaryFormat/XCOFF.h" |
| 13 | #include "llvm/MC/MCSymbol.h" |
| 14 | |
| 15 | namespace llvm { |
| 16 | |
| 17 | class MCSectionXCOFF; |
| 18 | |
| 19 | class MCSymbolXCOFF : public MCSymbol { |
| 20 | |
| 21 | enum XCOFFSymbolFlags : uint16_t { SF_EHInfo = 0x0001 }; |
| 22 | |
| 23 | public: |
| 24 | MCSymbolXCOFF(const StringMapEntry<bool> *Name, bool isTemporary) |
| 25 | : MCSymbol(SymbolKindXCOFF, Name, isTemporary) {} |
| 26 | |
| 27 | static bool classof(const MCSymbol *S) { return S->isXCOFF(); } |
| 28 | |
| 29 | enum CodeModel : uint8_t { CM_Small, CM_Large }; |
| 30 | |
| 31 | static StringRef getUnqualifiedName(StringRef Name) { |
| 32 | if (Name.back() == ']') { |
| 33 | StringRef Lhs, Rhs; |
| 34 | std::tie(args&: Lhs, args&: Rhs) = Name.rsplit(Separator: '['); |
| 35 | assert(!Rhs.empty() && "Invalid SMC format in XCOFF symbol."); |
| 36 | return Lhs; |
| 37 | } |
| 38 | return Name; |
| 39 | } |
| 40 | |
| 41 | void setStorageClass(XCOFF::StorageClass SC) { |
| 42 | StorageClass = SC; |
| 43 | }; |
| 44 | |
| 45 | XCOFF::StorageClass getStorageClass() const { |
| 46 | assert(StorageClass && "StorageClass not set on XCOFF MCSymbol."); |
| 47 | return *StorageClass; |
| 48 | } |
| 49 | |
| 50 | StringRef getUnqualifiedName() const { return getUnqualifiedName(Name: getName()); } |
| 51 | |
| 52 | MCSectionXCOFF *getRepresentedCsect() const; |
| 53 | |
| 54 | void setRepresentedCsect(MCSectionXCOFF *C); |
| 55 | |
| 56 | void setVisibilityType(XCOFF::VisibilityType SVT) { VisibilityType = SVT; }; |
| 57 | |
| 58 | XCOFF::VisibilityType getVisibilityType() const { return VisibilityType; } |
| 59 | |
| 60 | bool hasRename() const { return HasRename; } |
| 61 | |
| 62 | void setSymbolTableName(StringRef STN) { |
| 63 | SymbolTableName = STN; |
| 64 | HasRename = true; |
| 65 | } |
| 66 | |
| 67 | StringRef getSymbolTableName() const { |
| 68 | if (hasRename()) |
| 69 | return SymbolTableName; |
| 70 | return getUnqualifiedName(); |
| 71 | } |
| 72 | |
| 73 | bool isEHInfo() const { return getFlags() & SF_EHInfo; } |
| 74 | |
| 75 | void setEHInfo() const { modifyFlags(Value: SF_EHInfo, Mask: SF_EHInfo); } |
| 76 | |
| 77 | bool hasPerSymbolCodeModel() const { return PerSymbolCodeModel.has_value(); } |
| 78 | |
| 79 | CodeModel getPerSymbolCodeModel() const { |
| 80 | assert(hasPerSymbolCodeModel() && |
| 81 | "Requested code model for symbol without one"); |
| 82 | return *PerSymbolCodeModel; |
| 83 | } |
| 84 | |
| 85 | void setPerSymbolCodeModel(MCSymbolXCOFF::CodeModel Model) { |
| 86 | PerSymbolCodeModel = Model; |
| 87 | } |
| 88 | |
| 89 | private: |
| 90 | std::optional<XCOFF::StorageClass> StorageClass; |
| 91 | std::optional<CodeModel> PerSymbolCodeModel; |
| 92 | |
| 93 | MCSectionXCOFF *RepresentedCsect = nullptr; |
| 94 | XCOFF::VisibilityType VisibilityType = XCOFF::SYM_V_UNSPECIFIED; |
| 95 | StringRef SymbolTableName; |
| 96 | bool HasRename = false; |
| 97 | }; |
| 98 | |
| 99 | } // end namespace llvm |
| 100 | |
| 101 | #endif // LLVM_MC_MCSYMBOLXCOFF_H |
| 102 |