1 //===-- RegisterContextPOSIXCore_arm64.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 #ifndef LLDB_SOURCE_PLUGINS_PROCESS_ELF_CORE_REGISTERCONTEXTPOSIXCORE_ARM64_H 10 #define LLDB_SOURCE_PLUGINS_PROCESS_ELF_CORE_REGISTERCONTEXTPOSIXCORE_ARM64_H 11 12 #include "Plugins/Process/Utility/LinuxPTraceDefines_arm64sve.h" 13 #include "Plugins/Process/Utility/RegisterContextPOSIX_arm64.h" 14 #include "Plugins/Process/Utility/RegisterFlagsDetector_arm64.h" 15 16 #include "Plugins/Process/elf-core/RegisterUtilities.h" 17 #include "lldb/Utility/DataBufferHeap.h" 18 #include "lldb/Utility/DataExtractor.h" 19 20 class RegisterContextCorePOSIX_arm64 : public RegisterContextPOSIX_arm64 { 21 public: 22 static std::unique_ptr<RegisterContextCorePOSIX_arm64> 23 Create(lldb_private::Thread &thread, const lldb_private::ArchSpec &arch, 24 const lldb_private::DataExtractor &gpregset, 25 llvm::ArrayRef<lldb_private::CoreNote> notes); 26 27 ~RegisterContextCorePOSIX_arm64() override; 28 29 bool ReadRegister(const lldb_private::RegisterInfo *reg_info, 30 lldb_private::RegisterValue &value) override; 31 32 bool WriteRegister(const lldb_private::RegisterInfo *reg_info, 33 const lldb_private::RegisterValue &value) override; 34 35 bool ReadAllRegisterValues(lldb::WritableDataBufferSP &data_sp) override; 36 37 bool WriteAllRegisterValues(const lldb::DataBufferSP &data_sp) override; 38 39 bool HardwareSingleStep(bool enable) override; 40 41 protected: 42 RegisterContextCorePOSIX_arm64( 43 lldb_private::Thread &thread, 44 std::unique_ptr<RegisterInfoPOSIX_arm64> register_info, 45 const lldb_private::DataExtractor &gpregset, 46 llvm::ArrayRef<lldb_private::CoreNote> notes); 47 48 bool ReadGPR() override; 49 50 bool ReadFPR() override; 51 52 bool WriteGPR() override; 53 54 bool WriteFPR() override; 55 56 private: 57 lldb_private::DataExtractor m_gpr_data; 58 lldb_private::DataExtractor m_fpr_data; 59 lldb_private::DataExtractor m_sve_data; 60 lldb_private::DataExtractor m_pac_data; 61 lldb_private::DataExtractor m_tls_data; 62 lldb_private::DataExtractor m_za_data; 63 lldb_private::DataExtractor m_mte_data; 64 lldb_private::DataExtractor m_zt_data; 65 lldb_private::DataExtractor m_fpmr_data; 66 lldb_private::DataExtractor m_gcs_data; 67 68 SVEState m_sve_state = SVEState::Unknown; 69 uint16_t m_sve_vector_length = 0; 70 71 // These are pseudo registers derived from the values in SSVE and ZA data. 72 struct __attribute__((packed)) sme_pseudo_regs { 73 uint64_t ctrl_reg; 74 uint64_t svg_reg; 75 }; 76 static_assert(sizeof(sme_pseudo_regs) == 16); 77 78 struct sme_pseudo_regs m_sme_pseudo_regs; 79 80 lldb_private::Arm64RegisterFlagsDetector m_register_flags_detector; 81 82 const uint8_t *GetSVEBuffer(uint64_t offset = 0); 83 84 void ConfigureRegisterContext(); 85 86 uint32_t CalculateSVEOffset(const lldb_private::RegisterInfo *reg_info); 87 88 uint64_t GetSVERegVG() { return m_sve_vector_length / 8; } 89 }; 90 91 #endif // LLDB_SOURCE_PLUGINS_PROCESS_ELF_CORE_REGISTERCONTEXTPOSIXCORE_ARM64_H 92