RegisterContextWindows.h

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//===-- RegisterContextWindows.h --------------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
 
#ifndef liblldb_RegisterContextWindows_H_
#define liblldb_RegisterContextWindows_H_
 
#include "lldb/Target/RegisterContext.h"
#include "lldb/lldb-forward.h"
 
namespace lldb_private {
 
class Thread;
 
class RegisterContextWindows : public lldb_private::RegisterContext {
public:
  // Constructors and Destructors
  RegisterContextWindows(Thread &thread, uint32_t concrete_frame_idx);
 
  virtual ~RegisterContextWindows();
 
  // Subclasses must override these functions
  void InvalidateAllRegisters() override;
 
  bool ReadAllRegisterValues(lldb::WritableDataBufferSP &data_sp) override;
 
  bool WriteAllRegisterValues(const lldb::DataBufferSP &data_sp) override;
 
  uint32_t ConvertRegisterKindToRegisterNumber(lldb::RegisterKind kind,
                                               uint32_t num) override;
 
  bool HardwareSingleStep(bool enable) override;
 
  static constexpr uint32_t GetNumHardwareBreakpointSlots() {
    return NUM_HARDWARE_BREAKPOINT_SLOTS;
  }
  static constexpr bool DoHardwareBreakpointsTriggerAfter() { return true; }
 
  bool AddHardwareBreakpoint(uint32_t slot, lldb::addr_t address, uint32_t size,
                             bool read, bool write);
  bool RemoveHardwareBreakpoint(uint32_t slot);
 
  uint32_t GetTriggeredHardwareBreakpointSlotId();
 
protected:
  static constexpr unsigned NUM_HARDWARE_BREAKPOINT_SLOTS = 4;
 
  virtual bool CacheAllRegisterValues();
  virtual bool ApplyAllRegisterValues();
 
  CONTEXT m_context;
  bool m_context_stale;
};
} // namespace lldb_private
 
#endif // #ifndef liblldb_RegisterContextWindows_H_