lldb/source/Plugins/Process/Linux/NativeRegisterContextLinux_riscv64.h

   1 //===-- NativeRegisterContextLinux_riscv64.h -------------------*- C++ -*-===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #if defined(__riscv) && __riscv_xlen == 64
  10
  11 #ifndef lldb_NativeRegisterContextLinux_riscv64_h
  12 #define lldb_NativeRegisterContextLinux_riscv64_h
  13
  14 #include "Plugins/Process/Linux/NativeRegisterContextLinux.h"
  15 #include "Plugins/Process/Utility/RegisterInfoPOSIX_riscv64.h"
  16
  17 #include <asm/ptrace.h>
  18
  19 namespace lldb_private {
  20 namespace process_linux {
  21
  22 class NativeProcessLinux;
  23
  24 class NativeRegisterContextLinux_riscv64 : public NativeRegisterContextLinux {
  25 public:
  26   NativeRegisterContextLinux_riscv64(
  27       const ArchSpec &target_arch, NativeThreadProtocol &native_thread,
  28       std::unique_ptr<RegisterInfoPOSIX_riscv64> register_info_up);
  29
  30   uint32_t GetRegisterSetCount() const override;
  31
  32   uint32_t GetUserRegisterCount() const override;
  33
  34   const RegisterSet *GetRegisterSet(uint32_t set_index) const override;
  35
  36   Status ReadRegister(const RegisterInfo *reg_info,
  37                       RegisterValue &reg_value) override;
  38
  39   Status WriteRegister(const RegisterInfo *reg_info,
  40                        const RegisterValue &reg_value) override;
  41
  42   Status ReadAllRegisterValues(lldb::WritableDataBufferSP &data_sp) override;
  43
  44   Status WriteAllRegisterValues(const lldb::DataBufferSP &data_sp) override;
  45
  46   void InvalidateAllRegisters() override;
  47
  48   std::vector<uint32_t>
  49   GetExpeditedRegisters(ExpeditedRegs expType) const override;
  50
  51   bool RegisterOffsetIsDynamic() const override { return true; }
  52
  53 protected:
  54   Status ReadGPR() override;
  55
  56   Status WriteGPR() override;
  57
  58   Status ReadFPR() override;
  59
  60   Status WriteFPR() override;
  61
  62   void *GetGPRBuffer() override { return &m_gpr; }
  63
  64   void *GetFPRBuffer() override { return &m_fpr; }
  65
  66   size_t GetGPRSize() const override { return GetRegisterInfo().GetGPRSize(); }
  67
  68   size_t GetFPRSize() override { return GetRegisterInfo().GetFPRSize(); }
  69
  70 private:
  71   bool m_gpr_is_valid;
  72   bool m_fpu_is_valid;
  73
  74   RegisterInfoPOSIX_riscv64::GPR m_gpr;
  75
  76   RegisterInfoPOSIX_riscv64::FPR m_fpr;
  77
  78   size_t GetRegContextSize();
  79
  80   bool IsGPR(unsigned reg) const;
  81
  82   bool IsFPR(unsigned reg) const;
  83
  84   uint32_t CalculateFprOffset(const RegisterInfo *reg_info) const;
  85
  86   const RegisterInfoPOSIX_riscv64 &GetRegisterInfo() const;
  87 };
  88
  89 } // namespace process_linux
  90 } // namespace lldb_private
  91
  92 #endif // #ifndef lldb_NativeRegisterContextLinux_riscv64_h
  93
  94 #endif // defined(__riscv) && __riscv_xlen == 64