1 files changed, 310 insertions, 0 deletions
diff --git a/lld/lib/ReaderWriter/MachO/DebugInfo.h b/lld/lib/ReaderWriter/MachO/DebugInfo.h
new file mode 100644
index 00000000000..7729b020d5e
--- /dev/null
+++ b/lld/lib/ReaderWriter/MachO/DebugInfo.h
@@ -0,0 +1,310 @@
+//===- lib/ReaderWriter/MachO/File.h ----------------------------*- C++ -*-===//
+//
+//                             The LLVM Linker
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLD_READER_WRITER_MACHO_DEBUGINFO_H
+#define LLD_READER_WRITER_MACHO_DEBUGINFO_H
+
+#include "lld/Core/Atom.h"
+#include <vector>
+
+#include "llvm/Support/Format.h"
+#include "llvm/Support/raw_ostream.h"
+
+
+namespace lld {
+namespace mach_o {
+
+class DebugInfo {
+public:
+  enum class Kind {
+    Dwarf,
+    Stabs
+  };
+
+  Kind kind() const { return _kind; }
+
+  void setAllocator(std::unique_ptr<llvm::BumpPtrAllocator> allocator) {
+    _allocator = std::move(allocator);
+  }
+
+protected:
+  DebugInfo(Kind kind) : _kind(kind) {}
+
+private:
+  std::unique_ptr<llvm::BumpPtrAllocator> _allocator;
+  Kind _kind;
+};
+
+struct TranslationUnitSource {
+  StringRef name;
+  StringRef path;
+};
+
+class DwarfDebugInfo : public DebugInfo {
+public:
+  DwarfDebugInfo(TranslationUnitSource tu)
+    : DebugInfo(Kind::Dwarf), _tu(std::move(tu)) {}
+
+  static inline bool classof(const DebugInfo *di) {
+    return di->kind() == Kind::Dwarf;
+  }
+
+  const TranslationUnitSource &translationUnitSource() const { return _tu; }
+
+private:
+  TranslationUnitSource _tu;
+};
+
+struct Stab {
+  Stab(const Atom* atom, uint8_t type, uint8_t other, uint16_t desc,
+       uint32_t value, StringRef str)
+    : atom(atom), type(type), other(other), desc(desc), value(value),
+      str(str) {}
+
+  const class Atom*   atom;
+  uint8_t             type;
+  uint8_t             other;
+  uint16_t            desc;
+  uint32_t            value;
+  StringRef           str;
+};
+
+inline raw_ostream& operator<<(raw_ostream &os, Stab &s) {
+  os << "Stab -- atom: " << llvm::format("%p", s.atom) << ", type: " << (uint32_t)s.type
+     << ", other: " << (uint32_t)s.other << ", desc: " << s.desc << ", value: " << s.value
+     << ", str: '" << s.str << "'";
+  return os;
+}
+
+class StabsDebugInfo : public DebugInfo {
+public:
+
+  typedef std::vector<Stab> StabsList;
+
+  StabsDebugInfo(StabsList stabs)
+    : DebugInfo(Kind::Stabs), _stabs(std::move(stabs)) {}
+
+  static inline bool classof(const DebugInfo *di) {
+    return di->kind() == Kind::Stabs;
+  }
+
+  const StabsList& stabs() const { return _stabs; }
+
+public:
+  StabsList _stabs;
+};
+
+} // end namespace mach_o
+} // end namespace lld
+
+#endif // LLD_READER_WRITER_MACHO_DEBUGINFO_H
+//===- lib/ReaderWriter/MachO/File.h ----------------------------*- C++ -*-===//
+//
+//                             The LLVM Linker
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLD_READER_WRITER_MACHO_DEBUGINFO_H
+#define LLD_READER_WRITER_MACHO_DEBUGINFO_H
+
+#include "lld/Core/Atom.h"
+#include <vector>
+
+#include "llvm/Support/Format.h"
+#include "llvm/Support/raw_ostream.h"
+
+
+namespace lld {
+namespace mach_o {
+
+class DebugInfo {
+public:
+  enum class Kind {
+    Dwarf,
+    Stabs
+  };
+
+  Kind kind() const { return _kind; }
+
+protected:
+  DebugInfo(Kind kind) : _kind(kind) {}
+
+private:
+  Kind _kind;
+};
+
+
+struct TranslationUnitSource {
+  StringRef name;
+  StringRef path;
+};
+
+class DwarfDebugInfo : public DebugInfo {
+public:
+  DwarfDebugInfo(TranslationUnitSource tu)
+    : DebugInfo(Kind::Dwarf), _tu(std::move(tu)) {}
+
+  static inline bool classof(const DebugInfo *di) {
+    return di->kind() == Kind::Dwarf;
+  }
+
+  const TranslationUnitSource &translationUnitSource() const { return _tu; }
+
+private:
+  TranslationUnitSource _tu;
+};
+
+struct Stab {
+  Stab(const Atom* atom, uint8_t type, uint8_t other, uint16_t desc,
+       uint32_t value, StringRef str)
+    : atom(atom), type(type), other(other), desc(desc), value(value),
+      str(str) {}
+
+  const class Atom*   atom;
+  uint8_t             type;
+  uint8_t             other;
+  uint16_t            desc;
+  uint32_t            value;
+  StringRef           str;
+};
+
+inline raw_ostream& operator<<(raw_ostream &os, Stab &s) {
+  os << "Stab -- atom: " << llvm::format("%p", s.atom) << ", type: " << (uint32_t)s.type
+     << ", other: " << (uint32_t)s.other << ", desc: " << s.desc << ", value: " << s.value
+     << ", str: '" << s.str << "'";
+  return os;
+}
+
+class StabsDebugInfo : public DebugInfo {
+public:
+
+  typedef std::vector<Stab> StabsList;
+
+  StabsDebugInfo(StabsList stabs)
+    : DebugInfo(Kind::Stabs), _stabs(std::move(stabs)) {}
+
+  static inline bool classof(const DebugInfo *di) {
+    return di->kind() == Kind::Stabs;
+  }
+
+  const StabsList& stabs() const { return _stabs; }
+
+public:
+  StabsList _stabs;
+};
+
+} // end namespace mach_o
+} // end namespace lld
+
+#endif // LLD_READER_WRITER_MACHO_DEBUGINFO_H
+//===- lib/ReaderWriter/MachO/File.h ----------------------------*- C++ -*-===//
+//
+//                             The LLVM Linker
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLD_READER_WRITER_MACHO_DEBUGINFO_H
+#define LLD_READER_WRITER_MACHO_DEBUGINFO_H
+
+#include "lld/Core/Atom.h"
+#include <vector>
+
+#include "llvm/Support/Format.h"
+#include "llvm/Support/raw_ostream.h"
+
+
+namespace lld {
+namespace mach_o {
+
+class DebugInfo {
+public:
+  enum class Kind {
+    Dwarf,
+    Stabs
+  };
+
+  Kind kind() const { return _kind; }
+
+protected:
+  DebugInfo(Kind kind) : _kind(kind) {}
+
+private:
+  Kind _kind;
+};
+
+
+struct TranslationUnitSource {
+  StringRef name;
+  StringRef path;
+};
+
+class DwarfDebugInfo : public DebugInfo {
+public:
+  DwarfDebugInfo(TranslationUnitSource tu)
+    : DebugInfo(Kind::Dwarf), _tu(std::move(tu)) {}
+
+  static inline bool classof(const DebugInfo *di) {
+    return di->kind() == Kind::Dwarf;
+  }
+
+  const TranslationUnitSource &translationUnitSource() const { return _tu; }
+
+private:
+  TranslationUnitSource _tu;
+};
+
+struct Stab {
+  Stab(const Atom* atom, uint8_t type, uint8_t other, uint16_t desc,
+       uint32_t value, StringRef str)
+    : atom(atom), type(type), other(other), desc(desc), value(value),
+      str(str) {}
+
+  const class Atom*   atom;
+  uint8_t             type;
+  uint8_t             other;
+  uint16_t            desc;
+  uint32_t            value;
+  StringRef           str;
+};
+
+inline raw_ostream& operator<<(raw_ostream &os, Stab &s) {
+  os << "Stab -- atom: " << llvm::format("%p", s.atom) << ", type: " << (uint32_t)s.type
+     << ", other: " << (uint32_t)s.other << ", desc: " << s.desc << ", value: " << s.value
+     << ", str: '" << s.str << "'";
+  return os;
+}
+
+class StabsDebugInfo : public DebugInfo {
+public:
+
+  typedef std::vector<Stab> StabsList;
+
+  StabsDebugInfo(StabsList stabs)
+    : DebugInfo(Kind::Stabs), _stabs(std::move(stabs)) {}
+
+  static inline bool classof(const DebugInfo *di) {
+    return di->kind() == Kind::Stabs;
+  }
+
+  const StabsList& stabs() const { return _stabs; }
+
+public:
+  StabsList _stabs;
+};
+
+} // end namespace mach_o
+} // end namespace lld
+
+#endif // LLD_READER_WRITER_MACHO_DEBUGINFO_H