source/Plugins/Process/Utility/RegisterContextHistory.h

//===-- RegisterContextHistory.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_RegisterContextHistory_h_
#define lldb_RegisterContextHistory_h_

// C Includes
// C++ Includes
#include <vector>

// Other libraries and framework includes
// Project includes
#include "lldb/lldb-private.h"
#include "lldb/Target/RegisterContext.h"
#include "lldb/Symbol/SymbolContext.h"

namespace lldb_private {
    
class RegisterContextHistory : public lldb_private::RegisterContext
{
public:
    typedef std::shared_ptr<RegisterContextHistory> SharedPtr;
    
    RegisterContextHistory (Thread &thread, uint32_t concrete_frame_idx, uint32_t address_byte_size, lldb::addr_t pc_value);
    
    ~RegisterContextHistory() override;

    void
    InvalidateAllRegisters() override;

    size_t
    GetRegisterCount() override;

    const lldb_private::RegisterInfo *
    GetRegisterInfoAtIndex(size_t reg) override;

    size_t
    GetRegisterSetCount() override;

    const lldb_private::RegisterSet *
    GetRegisterSet(size_t reg_set) override;

    bool
    ReadRegister(const lldb_private::RegisterInfo *reg_info,
                 lldb_private::RegisterValue &value) override;

    bool
    WriteRegister(const lldb_private::RegisterInfo *reg_info,
                  const lldb_private::RegisterValue &value) override;

    bool
    ReadAllRegisterValues(lldb::DataBufferSP &data_sp) override;

    bool
    WriteAllRegisterValues(const lldb::DataBufferSP &data_sp) override;

    uint32_t
    ConvertRegisterKindToRegisterNumber(lldb::RegisterKind kind, uint32_t num) override;
    
private:
    //------------------------------------------------------------------
    // For RegisterContextLLDB only
    //------------------------------------------------------------------
    
    lldb_private::RegisterSet m_reg_set0; // register set 0 (PC only)
    lldb_private::RegisterInfo m_pc_reg_info;

    lldb::addr_t m_pc_value;
    
    DISALLOW_COPY_AND_ASSIGN (RegisterContextHistory);
};
} // namespace lldb_private

#endif // lldb_RegisterContextHistory_h_