1 //===- MCSymbolWasm.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 #ifndef LLVM_MC_MCSYMBOLWASM_H 10 #define LLVM_MC_MCSYMBOLWASM_H 11 12 #include "llvm/BinaryFormat/Wasm.h" 13 #include "llvm/MC/MCSymbol.h" 14 15 namespace llvm { 16 17 class MCSymbolWasm : public MCSymbol { 18 wasm::WasmSymbolType Type = wasm::WASM_SYMBOL_TYPE_DATA; 19 bool IsWeak = false; 20 bool IsHidden = false; 21 bool IsComdat = false; 22 Optional<std::string> ImportModule; 23 Optional<std::string> ImportName; 24 wasm::WasmSignature *Signature = nullptr; 25 Optional<wasm::WasmGlobalType> GlobalType; 26 Optional<wasm::WasmEventType> EventType; 27 28 /// An expression describing how to calculate the size of a symbol. If a 29 /// symbol has no size this field will be NULL. 30 const MCExpr *SymbolSize = nullptr; 31 32 public: 33 // Use a module name of "env" for now, for compatibility with existing tools. 34 // This is temporary, and may change, as the ABI is not yet stable. MCSymbolWasm(const StringMapEntry<bool> * Name,bool isTemporary)35 MCSymbolWasm(const StringMapEntry<bool> *Name, bool isTemporary) 36 : MCSymbol(SymbolKindWasm, Name, isTemporary) {} classof(const MCSymbol * S)37 static bool classof(const MCSymbol *S) { return S->isWasm(); } 38 getSize()39 const MCExpr *getSize() const { return SymbolSize; } setSize(const MCExpr * SS)40 void setSize(const MCExpr *SS) { SymbolSize = SS; } 41 isFunction()42 bool isFunction() const { return Type == wasm::WASM_SYMBOL_TYPE_FUNCTION; } isData()43 bool isData() const { return Type == wasm::WASM_SYMBOL_TYPE_DATA; } isGlobal()44 bool isGlobal() const { return Type == wasm::WASM_SYMBOL_TYPE_GLOBAL; } isSection()45 bool isSection() const { return Type == wasm::WASM_SYMBOL_TYPE_SECTION; } isEvent()46 bool isEvent() const { return Type == wasm::WASM_SYMBOL_TYPE_EVENT; } getType()47 wasm::WasmSymbolType getType() const { return Type; } setType(wasm::WasmSymbolType type)48 void setType(wasm::WasmSymbolType type) { Type = type; } 49 isWeak()50 bool isWeak() const { return IsWeak; } setWeak(bool isWeak)51 void setWeak(bool isWeak) { IsWeak = isWeak; } 52 isHidden()53 bool isHidden() const { return IsHidden; } setHidden(bool isHidden)54 void setHidden(bool isHidden) { IsHidden = isHidden; } 55 isComdat()56 bool isComdat() const { return IsComdat; } setComdat(bool isComdat)57 void setComdat(bool isComdat) { IsComdat = isComdat; } 58 getImportModule()59 const StringRef getImportModule() const { 60 if (ImportModule.hasValue()) { 61 return ImportModule.getValue(); 62 } 63 return "env"; 64 } setImportModule(StringRef Name)65 void setImportModule(StringRef Name) { ImportModule = Name; } 66 getImportName()67 const StringRef getImportName() const { 68 if (ImportName.hasValue()) { 69 return ImportName.getValue(); 70 } 71 return getName(); 72 } setImportName(StringRef Name)73 void setImportName(StringRef Name) { ImportName = Name; } 74 getSignature()75 const wasm::WasmSignature *getSignature() const { return Signature; } setSignature(wasm::WasmSignature * Sig)76 void setSignature(wasm::WasmSignature *Sig) { Signature = Sig; } 77 getGlobalType()78 const wasm::WasmGlobalType &getGlobalType() const { 79 assert(GlobalType.hasValue()); 80 return GlobalType.getValue(); 81 } setGlobalType(wasm::WasmGlobalType GT)82 void setGlobalType(wasm::WasmGlobalType GT) { GlobalType = GT; } 83 getEventType()84 const wasm::WasmEventType &getEventType() const { 85 assert(EventType.hasValue()); 86 return EventType.getValue(); 87 } setEventType(wasm::WasmEventType ET)88 void setEventType(wasm::WasmEventType ET) { EventType = ET; } 89 }; 90 91 } // end namespace llvm 92 93 #endif // LLVM_MC_MCSYMBOLWASM_H 94