NativeRegisterContextLinux_riscv64.h

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//===-- NativeRegisterContextLinux_riscv64.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
//
//===----------------------------------------------------------------------===//
 
#if defined(__riscv) && __riscv_xlen == 64
 
#ifndef lldb_NativeRegisterContextLinux_riscv64_h
#define lldb_NativeRegisterContextLinux_riscv64_h
 
#include "Plugins/Process/Linux/NativeRegisterContextLinux.h"
#include "Plugins/Process/Utility/RegisterInfoPOSIX_riscv64.h"
 
#include <asm/ptrace.h>
 
namespace lldb_private {
namespace process_linux {
 
class NativeProcessLinux;
 
class NativeRegisterContextLinux_riscv64 : public NativeRegisterContextLinux {
public:
  NativeRegisterContextLinux_riscv64(
      const ArchSpec &target_arch, NativeThreadProtocol &native_thread,
      std::unique_ptr<RegisterInfoPOSIX_riscv64> register_info_up);
 
  uint32_t GetRegisterSetCount() const override;
 
  uint32_t GetUserRegisterCount() const override;
 
  const RegisterSet *GetRegisterSet(uint32_t set_index) const override;
 
  Status ReadRegister(const RegisterInfo *reg_info,
                      RegisterValue &reg_value) override;
 
  Status WriteRegister(const RegisterInfo *reg_info,
                       const RegisterValue &reg_value) override;
 
  Status ReadAllRegisterValues(lldb::WritableDataBufferSP &data_sp) override;
 
  Status WriteAllRegisterValues(const lldb::DataBufferSP &data_sp) override;
 
  void InvalidateAllRegisters() override;
 
  std::vector<uint32_t>
  GetExpeditedRegisters(ExpeditedRegs expType) const override;
 
  bool RegisterOffsetIsDynamic() const override { return true; }
 
protected:
  Status ReadGPR() override;
 
  Status WriteGPR() override;
 
  Status ReadFPR() override;
 
  Status WriteFPR() override;
 
  void *GetGPRBuffer() override { return &m_gpr; }
 
  void *GetFPRBuffer() override { return &m_fpr; }
 
  size_t GetGPRSize() const override { return GetRegisterInfo().GetGPRSize(); }
 
  size_t GetFPRSize() override { return GetRegisterInfo().GetFPRSize(); }
 
private:
  bool m_gpr_is_valid;
  bool m_fpu_is_valid;
 
  RegisterInfoPOSIX_riscv64::GPR m_gpr;
 
  RegisterInfoPOSIX_riscv64::FPR m_fpr;
 
  bool IsGPR(unsigned reg) const;
 
  bool IsFPR(unsigned reg) const;
 
  uint32_t CalculateFprOffset(const RegisterInfo *reg_info) const;
 
  const RegisterInfoPOSIX_riscv64 &GetRegisterInfo() const;
};
 
} // namespace process_linux
} // namespace lldb_private
 
#endif // #ifndef lldb_NativeRegisterContextLinux_riscv64_h
 
#endif // defined(__riscv) && __riscv_xlen == 64