Initial checkin of lldb code from internal Apple repo.

llvm-svn: 105619

1 files changed, 83 insertions, 0 deletions

diff --git a/lldb/source/Plugins/Process/Utility/RegisterContextMacOSXFrameBackchain.h b/lldb/source/Plugins/Process/Utility/RegisterContextMacOSXFrameBackchain.h
new file mode 100644
index 00000000000..f4118c2795d
--- /dev/null
+++ b/lldb/source/Plugins/Process/Utility/RegisterContextMacOSXFrameBackchain.h
@@ -0,0 +1,83 @@
+//===-- RegisterContextMacOSXFrameBackchain.h -------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef lldb_RegisterContextMacOSXFrameBackchain_h_
+#define lldb_RegisterContextMacOSXFrameBackchain_h_
+
+// C Includes
+// C++ Includes
+// Other libraries and framework includes
+// Project includes
+#include "lldb/lldb-private.h"
+#include "lldb/Target/RegisterContext.h"
+
+#include "UnwindMacOSXFrameBackchain.h"
+
+class RegisterContextMacOSXFrameBackchain : public lldb_private::RegisterContext
+{
+public:
+    //------------------------------------------------------------------
+    // Constructors and Destructors
+    //------------------------------------------------------------------
+    RegisterContextMacOSXFrameBackchain (lldb_private::Thread &thread,
+                                         lldb_private::StackFrame *frame,
+                                         const UnwindMacOSXFrameBackchain::Cursor &cursor);
+
+    virtual
+    ~RegisterContextMacOSXFrameBackchain ();
+
+    //------------------------------------------------------------------
+    // Subclasses must override these functions
+    //------------------------------------------------------------------
+    virtual void
+    Invalidate ();
+
+    virtual size_t
+    GetRegisterCount ();
+
+    virtual const lldb::RegisterInfo *
+    GetRegisterInfoAtIndex (uint32_t reg);
+
+    virtual size_t
+    GetRegisterSetCount ();
+
+    virtual const lldb::RegisterSet *
+    GetRegisterSet (uint32_t reg_set);
+
+    virtual bool
+    ReadRegisterValue (uint32_t reg, lldb_private::Scalar &value);
+
+    virtual bool
+    ReadRegisterBytes (uint32_t reg, lldb_private::DataExtractor &data);
+
+    virtual bool
+    ReadAllRegisterValues (lldb::DataBufferSP &data_sp);
+
+    virtual bool
+    WriteRegisterValue (uint32_t reg, const lldb_private::Scalar &value);
+
+    virtual bool
+    WriteRegisterBytes (uint32_t reg, lldb_private::DataExtractor &data, uint32_t data_offset);
+
+    virtual bool
+    WriteAllRegisterValues (const lldb::DataBufferSP &data_sp);
+
+    virtual uint32_t
+    ConvertRegisterKindToRegisterNumber (uint32_t kind, uint32_t num);
+    
+private:
+    UnwindMacOSXFrameBackchain::Cursor m_cursor;
+    bool m_cursor_is_valid;
+    //------------------------------------------------------------------
+    // For RegisterContextMacOSXFrameBackchain only
+    //------------------------------------------------------------------
+    DISALLOW_COPY_AND_ASSIGN (RegisterContextMacOSXFrameBackchain);
+};
+
+#endif  // lldb_RegisterContextMacOSXFrameBackchain_h_