1 files changed, 60 insertions, 0 deletions
diff --git a/lib/DebugInfo/DWARFDebugLoc.h b/lib/DebugInfo/DWARFDebugLoc.h
new file mode 100644
index 0000000000..d31aaaa127
--- /dev/null
+++ b/lib/DebugInfo/DWARFDebugLoc.h
@@ -0,0 +1,60 @@
+//===-- DWARFDebugLoc.h -----------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_DEBUGINFO_DWARFDEBUGLOC_H
+#define LLVM_DEBUGINFO_DWARFDEBUGLOC_H
+
+#include "DWARFRelocMap.h"
+#include "llvm/ADT/SmallVector.h"
+#include "llvm/Support/DataExtractor.h"
+
+namespace llvm {
+
+class raw_ostream;
+
+class DWARFDebugLoc {
+  /// A single location within a location list.
+  struct Entry {
+    /// The beginning address of the instruction range.
+    uint64_t Begin;
+    /// The ending address of the instruction range.
+    uint64_t End;
+    /// The location of the variable within the specified range.
+    SmallVector<unsigned char, 4> Loc;
+  };
+
+  /// A list of locations that contain one variable.
+  struct LocationList {
+    /// The beginning offset where this location list is stored in the debug_loc
+    /// section.
+    unsigned Offset;
+    /// All the locations in which the variable is stored.
+    SmallVector<Entry, 2> Entries;
+  };
+
+  typedef SmallVector<LocationList, 4> LocationLists;
+
+  /// A list of all the variables in the debug_loc section, each one describing
+  /// the locations in which the variable is stored.
+  LocationLists Locations;
+
+  /// A map used to resolve binary relocations.
+  const RelocAddrMap &RelocMap;
+
+public:
+  DWARFDebugLoc(const RelocAddrMap &LocRelocMap) : RelocMap(LocRelocMap) {}
+  /// Print the location lists found within the debug_loc section.
+  void dump(raw_ostream &OS) const;
+  /// Parse the debug_loc section accessible via the 'data' parameter using the
+  /// specified address size to interpret the address ranges.
+  void parse(DataExtractor data, unsigned AddressSize);
+};
+}
+
+#endif