1 files changed, 69 insertions, 0 deletions
diff --git a/include/lldb/Utility/RegisterNumber.h b/include/lldb/Utility/RegisterNumber.h
new file mode 100644
index 000000000000..89d52fd4a967
--- /dev/null
+++ b/include/lldb/Utility/RegisterNumber.h
@@ -0,0 +1,69 @@
+//===-- RegisterNumber.h ----------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef liblldb_RegisterNumber_h
+#define liblldb_RegisterNumber_h
+
+#include "lldb/lldb-private.h"
+#include <map>
+
+//--------------------------------------------------------------------
+/// A class to represent register numbers, and able to convert between
+/// different register numbering schemes that may be used in a single
+/// debug session.
+//--------------------------------------------------------------------
+
+class RegisterNumber {
+public:
+    RegisterNumber (lldb_private::Thread &thread, lldb::RegisterKind kind, uint32_t num);
+
+    // This constructor plus the init() method below allow for the placeholder
+    // creation of an invalid object initially, possibly to be filled in.  It
+    // would be more consistent to have three Set* methods to set the three
+    // data that the object needs.
+    RegisterNumber ();
+
+    void
+    init (lldb_private::Thread &thread, lldb::RegisterKind kind, uint32_t num);
+
+    const RegisterNumber &
+    operator = (const RegisterNumber &rhs);
+
+    bool
+    operator == (RegisterNumber &rhs);
+
+    bool
+    operator != (RegisterNumber &rhs);
+
+    bool
+    IsValid () const;
+
+    uint32_t
+    GetAsKind (lldb::RegisterKind kind);
+
+    uint32_t
+    GetRegisterNumber () const;
+
+    lldb::RegisterKind
+    GetRegisterKind () const;
+
+    const char *
+    GetName ();
+
+private:
+    typedef std::map<lldb::RegisterKind, uint32_t> Collection; 
+
+    lldb::RegisterContextSP m_reg_ctx_sp;
+    uint32_t                m_regnum;
+    lldb::RegisterKind      m_kind;
+    Collection              m_kind_regnum_map;
+    const char              *m_name;
+};
+
+#endif // liblldb_RegisterNumber_h