1 //===-- NativeRegisterContextLinux_s390x.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(__s390x__) && defined(__linux__) 10 11 #ifndef lldb_NativeRegisterContextLinux_s390x_h 12 #define lldb_NativeRegisterContextLinux_s390x_h 13 14 #include "Plugins/Process/Linux/NativeRegisterContextLinux.h" 15 #include "Plugins/Process/Utility/RegisterContext_s390x.h" 16 #include "Plugins/Process/Utility/lldb-s390x-register-enums.h" 17 #include <asm/ptrace.h> 18 19 namespace lldb_private { 20 namespace process_linux { 21 22 class NativeProcessLinux; 23 24 class NativeRegisterContextLinux_s390x : public NativeRegisterContextLinux { 25 public: 26 NativeRegisterContextLinux_s390x(const ArchSpec &target_arch, 27 NativeThreadProtocol &native_thread); 28 29 uint32_t GetRegisterSetCount() const override; 30 31 const RegisterSet *GetRegisterSet(uint32_t set_index) const override; 32 33 uint32_t GetUserRegisterCount() const override; 34 35 Status ReadRegister(const RegisterInfo *reg_info, 36 RegisterValue ®_value) override; 37 38 Status WriteRegister(const RegisterInfo *reg_info, 39 const RegisterValue ®_value) override; 40 41 Status ReadAllRegisterValues(lldb::WritableDataBufferSP &data_sp) override; 42 43 Status WriteAllRegisterValues(const lldb::DataBufferSP &data_sp) override; 44 45 Status IsWatchpointHit(uint32_t wp_index, bool &is_hit) override; 46 47 Status GetWatchpointHitIndex(uint32_t &wp_index, 48 lldb::addr_t trap_addr) override; 49 50 Status IsWatchpointVacant(uint32_t wp_index, bool &is_vacant) override; 51 52 bool ClearHardwareWatchpoint(uint32_t wp_index) override; 53 54 Status ClearAllHardwareWatchpoints() override; 55 56 uint32_t SetHardwareWatchpoint(lldb::addr_t addr, size_t size, 57 uint32_t watch_flags) override; 58 59 lldb::addr_t GetWatchpointAddress(uint32_t wp_index) override; 60 61 uint32_t NumSupportedHardwareWatchpoints() override; 62 63 protected: 64 Status DoReadRegisterValue(uint32_t offset, const char *reg_name, 65 uint32_t size, RegisterValue &value) override; 66 67 Status DoWriteRegisterValue(uint32_t offset, const char *reg_name, 68 const RegisterValue &value) override; 69 70 Status ReadGPR() override; 71 72 Status WriteGPR() override; 73 74 Status ReadFPR() override; 75 76 Status WriteFPR() override; 77 GetGPRBuffer()78 void *GetGPRBuffer() override { return &m_regs; } GetGPRSize()79 size_t GetGPRSize() const override { return sizeof(m_regs); } GetFPRBuffer()80 void *GetFPRBuffer() override { return &m_fp_regs; } GetFPRSize()81 size_t GetFPRSize() override { return sizeof(m_fp_regs); } 82 83 private: 84 // Info about register ranges. 85 struct RegInfo { 86 uint32_t num_registers; 87 uint32_t num_gpr_registers; 88 uint32_t num_fpr_registers; 89 90 uint32_t last_gpr; 91 uint32_t first_fpr; 92 uint32_t last_fpr; 93 }; 94 95 // Private member variables. 96 RegInfo m_reg_info; 97 lldb::addr_t m_watchpoint_addr; 98 99 s390_regs m_regs; 100 s390_fp_regs m_fp_regs; 101 102 // Private member methods. 103 bool IsRegisterSetAvailable(uint32_t set_index) const; 104 105 bool IsGPR(uint32_t reg_index) const; 106 107 bool IsFPR(uint32_t reg_index) const; 108 109 Status PeekUserArea(uint32_t offset, void *buf, size_t buf_size); 110 111 Status PokeUserArea(uint32_t offset, const void *buf, size_t buf_size); 112 113 Status DoReadRegisterSet(uint32_t regset, void *buf, size_t buf_size); 114 115 Status DoWriteRegisterSet(uint32_t regset, const void *buf, size_t buf_size); 116 }; 117 118 } // namespace process_linux 119 } // namespace lldb_private 120 121 #endif // #ifndef lldb_NativeRegisterContextLinux_s390x_h 122 123 #endif // defined(__s390x__) && defined(__linux__) 124