1 files changed, 96 insertions, 0 deletions
diff --git a/include/llvm/TextAPI/MachO/Symbol.h b/include/llvm/TextAPI/MachO/Symbol.h
new file mode 100644
index 000000000000..3c7ff5e0f4ea
--- /dev/null
+++ b/include/llvm/TextAPI/MachO/Symbol.h
@@ -0,0 +1,96 @@
+//===- llvm/TextAPI/Symbol.h - TAPI Symbol ----------------------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_TEXTAPI_MACHO_SYMBOL_H
+#define LLVM_TEXTAPI_MACHO_SYMBOL_H
+
+#include "llvm/ADT/BitmaskEnum.h"
+#include "llvm/ADT/StringRef.h"
+#include "llvm/Support/Error.h"
+#include "llvm/Support/raw_ostream.h"
+#include "llvm/TextAPI/MachO/ArchitectureSet.h"
+
+namespace llvm {
+namespace MachO {
+
+// clang-format off
+
+/// Symbol flags.
+enum class SymbolFlags : uint8_t {
+  /// No flags
+  None             = 0,
+
+  /// Thread-local value symbol
+  ThreadLocalValue = 1U << 0,
+
+  /// Weak defined symbol
+  WeakDefined      = 1U << 1,
+
+  /// Weak referenced symbol
+  WeakReferenced   = 1U << 2,
+
+  /// Undefined
+  Undefined        = 1U << 3,
+
+  LLVM_MARK_AS_BITMASK_ENUM(/*LargestValue=*/Undefined),
+};
+
+// clang-format on
+
+enum class SymbolKind : uint8_t {
+  GlobalSymbol,
+  ObjectiveCClass,
+  ObjectiveCClassEHType,
+  ObjectiveCInstanceVariable,
+};
+
+class Symbol {
+public:
+  constexpr Symbol(SymbolKind Kind, StringRef Name,
+                   ArchitectureSet Architectures, SymbolFlags Flags)
+      : Name(Name), Architectures(Architectures), Kind(Kind), Flags(Flags) {}
+
+  SymbolKind getKind() const { return Kind; }
+  StringRef getName() const { return Name; }
+  ArchitectureSet getArchitectures() const { return Architectures; }
+  void addArchitectures(ArchitectureSet Archs) { Architectures |= Archs; }
+  SymbolFlags getFlags() const { return Flags; }
+
+  bool isWeakDefined() const {
+    return (Flags & SymbolFlags::WeakDefined) == SymbolFlags::WeakDefined;
+  }
+
+  bool isWeakReferenced() const {
+    return (Flags & SymbolFlags::WeakReferenced) == SymbolFlags::WeakReferenced;
+  }
+
+  bool isThreadLocalValue() const {
+    return (Flags & SymbolFlags::ThreadLocalValue) ==
+           SymbolFlags::ThreadLocalValue;
+  }
+
+  bool isUndefined() const {
+    return (Flags & SymbolFlags::Undefined) == SymbolFlags::Undefined;
+  }
+
+#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
+  void dump(raw_ostream &OS) const;
+  void dump() const { dump(llvm::errs()); }
+#endif
+
+private:
+  StringRef Name;
+  ArchitectureSet Architectures;
+  SymbolKind Kind;
+  SymbolFlags Flags;
+};
+
+} // end namespace MachO.
+} // end namespace llvm.
+
+#endif // LLVM_TEXTAPI_MACHO_SYMBOL_H