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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"
//------------------------------------------------------------------------------
/// @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;
protected:
bool m_watchpoints_initialized;
};
//------------------------------------------------------------------------------
/// @class RegisterInfoInterface
///
/// @brief RegisterInfo interface to patch RegisterInfo structure for archs.
class RegisterInfoInterface
{
public:
RegisterInfoInterface(const lldb_private::ArchSpec& target_arch) : m_target_arch(target_arch) {}
virtual ~RegisterInfoInterface () {}
virtual size_t
GetGPRSize () = 0;
virtual const lldb_private::RegisterInfo *
GetRegisterInfo () = 0;
public:
lldb_private::ArchSpec m_target_arch;
};
#endif // #ifndef liblldb_RegisterContextPOSIX_H_
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