3 files changed, 205 insertions, 0 deletions
diff --git a/include/llvm/DebugInfo/Symbolize/DIPrinter.h b/include/llvm/DebugInfo/Symbolize/DIPrinter.h
new file mode 100644
index 000000000000..0703fb14da61
--- /dev/null
+++ b/include/llvm/DebugInfo/Symbolize/DIPrinter.h
@@ -0,0 +1,47 @@
+//===- llvm/DebugInfo/Symbolize/DIPrinter.h ---------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file declares the DIPrinter class, which is responsible for printing
+// structures defined in DebugInfo/DIContext.h
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_DEBUGINFO_SYMBOLIZE_DIPRINTER_H
+#define LLVM_DEBUGINFO_SYMBOLIZE_DIPRINTER_H
+
+#include "llvm/Support/raw_ostream.h"
+
+namespace llvm {
+struct DILineInfo;
+class DIInliningInfo;
+struct DIGlobal;
+
+namespace symbolize {
+
+class DIPrinter {
+  raw_ostream &OS;
+  bool PrintFunctionNames;
+  bool PrintPretty;
+  void printName(const DILineInfo &Info, bool Inlined);
+
+public:
+  DIPrinter(raw_ostream &OS, bool PrintFunctionNames = true,
+            bool PrintPretty = false)
+      : OS(OS), PrintFunctionNames(PrintFunctionNames),
+        PrintPretty(PrintPretty) {}
+
+  DIPrinter &operator<<(const DILineInfo &Info);
+  DIPrinter &operator<<(const DIInliningInfo &Info);
+  DIPrinter &operator<<(const DIGlobal &Global);
+};
+}
+}
+
+#endif
+
diff --git a/include/llvm/DebugInfo/Symbolize/SymbolizableModule.h b/include/llvm/DebugInfo/Symbolize/SymbolizableModule.h
new file mode 100644
index 000000000000..ff9cc808875d
--- /dev/null
+++ b/include/llvm/DebugInfo/Symbolize/SymbolizableModule.h
@@ -0,0 +1,53 @@
+//===-- SymbolizableModule.h ------------------------------------ C++ -----===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file declares the SymbolizableModule interface.
+//
+//===----------------------------------------------------------------------===//
+#ifndef LLVM_DEBUGINFO_SYMBOLIZE_SYMBOLIZABLEMODULE_H
+#define LLVM_DEBUGINFO_SYMBOLIZE_SYMBOLIZABLEMODULE_H
+
+#include "llvm/DebugInfo/DIContext.h"
+#include <memory>
+#include <string>
+
+namespace llvm {
+namespace object {
+class ObjectFile;
+}
+}
+
+namespace llvm {
+namespace symbolize {
+
+using FunctionNameKind = DILineInfoSpecifier::FunctionNameKind;
+
+class SymbolizableModule {
+public:
+  virtual ~SymbolizableModule() {}
+  virtual DILineInfo symbolizeCode(uint64_t ModuleOffset,
+                                   FunctionNameKind FNKind,
+                                   bool UseSymbolTable) const = 0;
+  virtual DIInliningInfo symbolizeInlinedCode(uint64_t ModuleOffset,
+                                              FunctionNameKind FNKind,
+                                              bool UseSymbolTable) const = 0;
+  virtual DIGlobal symbolizeData(uint64_t ModuleOffset) const = 0;
+
+  // Return true if this is a 32-bit x86 PE COFF module.
+  virtual bool isWin32Module() const = 0;
+
+  // Returns the preferred base of the module, i.e. where the loader would place
+  // it in memory assuming there were no conflicts.
+  virtual uint64_t getModulePreferredBase() const = 0;
+};
+
+}  // namespace symbolize
+}  // namespace llvm
+
+#endif  // LLVM_DEBUGINFO_SYMBOLIZE_SYMBOLIZABLEMODULE_H
diff --git a/include/llvm/DebugInfo/Symbolize/Symbolize.h b/include/llvm/DebugInfo/Symbolize/Symbolize.h
new file mode 100644
index 000000000000..ec3ae002659c
--- /dev/null
+++ b/include/llvm/DebugInfo/Symbolize/Symbolize.h
@@ -0,0 +1,105 @@
+//===-- Symbolize.h --------------------------------------------- C++ -----===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// Header for LLVM symbolization library.
+//
+//===----------------------------------------------------------------------===//
+#ifndef LLVM_DEBUGINFO_SYMBOLIZE_SYMBOLIZE_H
+#define LLVM_DEBUGINFO_SYMBOLIZE_SYMBOLIZE_H
+
+#include "llvm/DebugInfo/Symbolize/SymbolizableModule.h"
+#include "llvm/Object/ObjectFile.h"
+#include "llvm/Support/ErrorOr.h"
+#include <map>
+#include <memory>
+#include <string>
+
+namespace llvm {
+namespace symbolize {
+
+using namespace object;
+using FunctionNameKind = DILineInfoSpecifier::FunctionNameKind;
+
+class LLVMSymbolizer {
+public:
+  struct Options {
+    FunctionNameKind PrintFunctions;
+    bool UseSymbolTable : 1;
+    bool Demangle : 1;
+    bool RelativeAddresses : 1;
+    std::string DefaultArch;
+    std::vector<std::string> DsymHints;
+    Options(FunctionNameKind PrintFunctions = FunctionNameKind::LinkageName,
+            bool UseSymbolTable = true, bool Demangle = true,
+            bool RelativeAddresses = false, std::string DefaultArch = "")
+        : PrintFunctions(PrintFunctions), UseSymbolTable(UseSymbolTable),
+          Demangle(Demangle), RelativeAddresses(RelativeAddresses),
+          DefaultArch(DefaultArch) {}
+  };
+
+  LLVMSymbolizer(const Options &Opts = Options()) : Opts(Opts) {}
+  ~LLVMSymbolizer() {
+    flush();
+  }
+
+  ErrorOr<DILineInfo> symbolizeCode(const std::string &ModuleName,
+                                    uint64_t ModuleOffset);
+  ErrorOr<DIInliningInfo> symbolizeInlinedCode(const std::string &ModuleName,
+                                               uint64_t ModuleOffset);
+  ErrorOr<DIGlobal> symbolizeData(const std::string &ModuleName,
+                                  uint64_t ModuleOffset);
+  void flush();
+  static std::string DemangleName(const std::string &Name,
+                                  const SymbolizableModule *ModInfo);
+
+private:
+  // Bundles together object file with code/data and object file with
+  // corresponding debug info. These objects can be the same.
+  typedef std::pair<ObjectFile*, ObjectFile*> ObjectPair;
+
+  ErrorOr<SymbolizableModule *>
+  getOrCreateModuleInfo(const std::string &ModuleName);
+  ObjectFile *lookUpDsymFile(const std::string &Path,
+                             const MachOObjectFile *ExeObj,
+                             const std::string &ArchName);
+  ObjectFile *lookUpDebuglinkObject(const std::string &Path,
+                                    const ObjectFile *Obj,
+                                    const std::string &ArchName);
+
+  /// \brief Returns pair of pointers to object and debug object.
+  ErrorOr<ObjectPair> getOrCreateObjectPair(const std::string &Path,
+                                            const std::string &ArchName);
+
+  /// \brief Return a pointer to object file at specified path, for a specified
+  /// architecture (e.g. if path refers to a Mach-O universal binary, only one
+  /// object file from it will be returned).
+  ErrorOr<ObjectFile *> getOrCreateObject(const std::string &Path,
+                                          const std::string &ArchName);
+
+  std::map<std::string, ErrorOr<std::unique_ptr<SymbolizableModule>>> Modules;
+
+  /// \brief Contains cached results of getOrCreateObjectPair().
+  std::map<std::pair<std::string, std::string>, ErrorOr<ObjectPair>>
+      ObjectPairForPathArch;
+
+  /// \brief Contains parsed binary for each path, or parsing error.
+  std::map<std::string, ErrorOr<OwningBinary<Binary>>> BinaryForPath;
+
+  /// \brief Parsed object file for path/architecture pair, where "path" refers
+  /// to Mach-O universal binary.
+  std::map<std::pair<std::string, std::string>, ErrorOr<std::unique_ptr<ObjectFile>>>
+      ObjectForUBPathAndArch;
+
+  Options Opts;
+};
+
+} // namespace symbolize
+} // namespace llvm
+
+#endif