140 lines
4.9 KiB
C++
140 lines
4.9 KiB
C++
//===- MCSymbolWasm.h - ----------------------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_MC_MCSYMBOLWASM_H
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#define LLVM_MC_MCSYMBOLWASM_H
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#include "llvm/BinaryFormat/Wasm.h"
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#include "llvm/MC/MCSymbol.h"
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namespace llvm {
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class MCSymbolWasm : public MCSymbol {
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wasm::WasmSymbolType Type = wasm::WASM_SYMBOL_TYPE_DATA;
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bool IsWeak = false;
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bool IsHidden = false;
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bool IsComdat = false;
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mutable bool IsUsedInInitArray = false;
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mutable bool IsUsedInGOT = false;
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Optional<StringRef> ImportModule;
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Optional<StringRef> ImportName;
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Optional<StringRef> ExportName;
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wasm::WasmSignature *Signature = nullptr;
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Optional<wasm::WasmGlobalType> GlobalType;
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Optional<wasm::ValType> TableType;
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Optional<wasm::WasmEventType> EventType;
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/// An expression describing how to calculate the size of a symbol. If a
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/// symbol has no size this field will be NULL.
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const MCExpr *SymbolSize = nullptr;
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public:
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MCSymbolWasm(const StringMapEntry<bool> *Name, bool isTemporary)
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: MCSymbol(SymbolKindWasm, Name, isTemporary) {}
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static bool classof(const MCSymbol *S) { return S->isWasm(); }
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const MCExpr *getSize() const { return SymbolSize; }
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void setSize(const MCExpr *SS) { SymbolSize = SS; }
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bool isFunction() const { return Type == wasm::WASM_SYMBOL_TYPE_FUNCTION; }
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bool isData() const { return Type == wasm::WASM_SYMBOL_TYPE_DATA; }
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bool isGlobal() const { return Type == wasm::WASM_SYMBOL_TYPE_GLOBAL; }
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bool isTable() const { return Type == wasm::WASM_SYMBOL_TYPE_TABLE; }
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bool isSection() const { return Type == wasm::WASM_SYMBOL_TYPE_SECTION; }
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bool isEvent() const { return Type == wasm::WASM_SYMBOL_TYPE_EVENT; }
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wasm::WasmSymbolType getType() const { return Type; }
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void setType(wasm::WasmSymbolType type) { Type = type; }
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bool isExported() const {
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return getFlags() & wasm::WASM_SYMBOL_EXPORTED;
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}
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void setExported() const {
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modifyFlags(wasm::WASM_SYMBOL_EXPORTED, wasm::WASM_SYMBOL_EXPORTED);
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}
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bool isNoStrip() const {
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return getFlags() & wasm::WASM_SYMBOL_NO_STRIP;
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}
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void setNoStrip() const {
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modifyFlags(wasm::WASM_SYMBOL_NO_STRIP, wasm::WASM_SYMBOL_NO_STRIP);
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}
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bool isWeak() const { return IsWeak; }
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void setWeak(bool isWeak) { IsWeak = isWeak; }
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bool isHidden() const { return IsHidden; }
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void setHidden(bool isHidden) { IsHidden = isHidden; }
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bool isComdat() const { return IsComdat; }
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void setComdat(bool isComdat) { IsComdat = isComdat; }
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bool hasImportModule() const { return ImportModule.hasValue(); }
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StringRef getImportModule() const {
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if (ImportModule.hasValue())
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return ImportModule.getValue();
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// Use a default module name of "env" for now, for compatibility with
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// existing tools.
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// TODO(sbc): Find a way to specify a default value in the object format
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// without picking a hardcoded value like this.
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return "env";
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}
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void setImportModule(StringRef Name) { ImportModule = Name; }
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bool hasImportName() const { return ImportName.hasValue(); }
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StringRef getImportName() const {
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if (ImportName.hasValue())
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return ImportName.getValue();
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return getName();
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}
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void setImportName(StringRef Name) { ImportName = Name; }
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bool hasExportName() const { return ExportName.hasValue(); }
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StringRef getExportName() const { return ExportName.getValue(); }
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void setExportName(StringRef Name) { ExportName = Name; }
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bool isFunctionTable() const {
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return isTable() && hasTableType() &&
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getTableType() == wasm::ValType::FUNCREF;
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}
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void setFunctionTable() {
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setType(wasm::WASM_SYMBOL_TYPE_TABLE);
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setTableType(wasm::ValType::FUNCREF);
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}
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void setUsedInGOT() const { IsUsedInGOT = true; }
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bool isUsedInGOT() const { return IsUsedInGOT; }
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void setUsedInInitArray() const { IsUsedInInitArray = true; }
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bool isUsedInInitArray() const { return IsUsedInInitArray; }
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const wasm::WasmSignature *getSignature() const { return Signature; }
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void setSignature(wasm::WasmSignature *Sig) { Signature = Sig; }
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const wasm::WasmGlobalType &getGlobalType() const {
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assert(GlobalType.hasValue());
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return GlobalType.getValue();
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}
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void setGlobalType(wasm::WasmGlobalType GT) { GlobalType = GT; }
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bool hasTableType() const { return TableType.hasValue(); }
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wasm::ValType getTableType() const {
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assert(hasTableType());
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return TableType.getValue();
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}
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void setTableType(wasm::ValType TT) { TableType = TT; }
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const wasm::WasmEventType &getEventType() const {
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assert(EventType.hasValue());
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return EventType.getValue();
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}
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void setEventType(wasm::WasmEventType ET) { EventType = ET; }
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};
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} // end namespace llvm
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#endif // LLVM_MC_MCSYMBOLWASM_H
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