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+//===-- RegisterContextPOSIX.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_RegisterContextPOSIX_H_
+#define liblldb_RegisterContextPOSIX_H_
+
+// C Includes
+// C++ Includes
+// Other libraries and framework includes
+#include "lldb/Core/ArchSpec.h"
+#include "lldb/Target/RegisterContext.h"
+#include "RegisterInfoInterface.h"
+
+//------------------------------------------------------------------------------
+/// @class POSIXBreakpointProtocol
+///
+/// @brief Extends RegisterClass with a few virtual operations useful on POSIX.
+class POSIXBreakpointProtocol
+{
+public:
+ POSIXBreakpointProtocol()
+ { m_watchpoints_initialized = false; }
+ virtual ~POSIXBreakpointProtocol() {}
+
+ /// Updates the register state of the associated thread after hitting a
+ /// breakpoint (if that make sense for the architecture). Default
+ /// implementation simply returns true for architectures which do not
+ /// require any update.
+ ///
+ /// @return
+ /// True if the operation succeeded and false otherwise.
+ virtual bool UpdateAfterBreakpoint() = 0;
+
+ /// Determines the index in lldb's register file given a kernel byte offset.
+ virtual unsigned
+ GetRegisterIndexFromOffset(unsigned offset) = 0;
+
+ // Checks to see if a watchpoint specified by hw_index caused the inferior
+ // to stop.
+ virtual bool
+ IsWatchpointHit (uint32_t hw_index) = 0;
+
+ // Resets any watchpoints that have been hit.
+ virtual bool
+ ClearWatchpointHits () = 0;
+
+ // Returns the watchpoint address associated with a watchpoint hardware
+ // index.
+ virtual lldb::addr_t
+ GetWatchpointAddress (uint32_t hw_index) = 0;
+
+ virtual bool
+ IsWatchpointVacant (uint32_t hw_index) = 0;
+
+ virtual bool
+ SetHardwareWatchpointWithIndex (lldb::addr_t addr, size_t size,
+ bool read, bool write,
+ uint32_t hw_index) = 0;
+
+ // From lldb_private::RegisterContext
+ virtual uint32_t
+ NumSupportedHardwareWatchpoints () = 0;
+
+ // Force m_watchpoints_initialized to TRUE
+ void
+ ForceWatchpointsInitialized () {m_watchpoints_initialized = true;}
+
+protected:
+ bool m_watchpoints_initialized;
+};
+
+#endif // #ifndef liblldb_RegisterContextPOSIX_H_
+