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0261cead1a
Add basic infrastructure for reading and writting TBD files (version 1 - 3). The TextAPI library is not used by anything yet (besides the unit tests). Tool support will be added in a separate commit. The TBD format is currently documented in the implementation file (TextStub.cpp). https://reviews.llvm.org/D53945 llvm-svn: 347808
103 lines
2.6 KiB
C++
103 lines
2.6 KiB
C++
//===- llvm/TextAPI/Symbol.h - TAPI Symbol ----------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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///
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/// \file
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/// \brief Symbol
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///
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_TEXTAPI_MACHO_SYMBOL_H
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#define LLVM_TEXTAPI_MACHO_SYMBOL_H
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#include "llvm/ADT/BitmaskEnum.h"
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#include "llvm/ADT/StringRef.h"
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#include "llvm/Support/Error.h"
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#include "llvm/Support/raw_ostream.h"
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#include "llvm/TextAPI/MachO/ArchitectureSet.h"
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namespace llvm {
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namespace MachO {
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// clang-format off
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/// Symbol flags.
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enum class SymbolFlags : uint8_t {
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/// No flags
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None = 0,
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/// Thread-local value symbol
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ThreadLocalValue = 1U << 0,
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/// Weak defined symbol
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WeakDefined = 1U << 1,
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/// Weak referenced symbol
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WeakReferenced = 1U << 2,
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/// Undefined
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Undefined = 1U << 3,
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LLVM_MARK_AS_BITMASK_ENUM(/*LargestValue=*/Undefined),
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};
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// clang-format on
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enum class SymbolKind : uint8_t {
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GlobalSymbol,
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ObjectiveCClass,
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ObjectiveCClassEHType,
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ObjectiveCInstanceVariable,
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};
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class Symbol {
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public:
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constexpr Symbol(SymbolKind Kind, StringRef Name,
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ArchitectureSet Architectures, SymbolFlags Flags)
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: Name(Name), Architectures(Architectures), Kind(Kind), Flags(Flags) {}
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SymbolKind getKind() const { return Kind; }
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StringRef getName() const { return Name; }
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ArchitectureSet getArchitectures() const { return Architectures; }
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void addArchitectures(ArchitectureSet Archs) { Architectures |= Archs; }
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SymbolFlags getFlags() const { return Flags; }
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bool isWeakDefined() const {
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return (Flags & SymbolFlags::WeakDefined) == SymbolFlags::WeakDefined;
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}
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bool isWeakReferenced() const {
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return (Flags & SymbolFlags::WeakReferenced) == SymbolFlags::WeakReferenced;
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}
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bool isThreadLocalValue() const {
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return (Flags & SymbolFlags::ThreadLocalValue) ==
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SymbolFlags::ThreadLocalValue;
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}
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bool isUndefined() const {
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return (Flags & SymbolFlags::Undefined) == SymbolFlags::Undefined;
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}
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#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
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void dump(raw_ostream &OS) const;
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void dump() const { dump(llvm::errs()); }
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#endif
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private:
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StringRef Name;
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ArchitectureSet Architectures;
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SymbolKind Kind;
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SymbolFlags Flags;
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};
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} // end namespace MachO.
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} // end namespace llvm.
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#endif // LLVM_TEXTAPI_MACHO_SYMBOL_H
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