Coverage Report

Created: 2023-11-11 10:31

/Users/buildslave/jenkins/workspace/coverage/llvm-project/lldb/source/Plugins/Process/elf-core/RegisterContextPOSIXCore_arm64.h
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//===-- RegisterContextPOSIXCore_arm64.h ------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLDB_SOURCE_PLUGINS_PROCESS_ELF_CORE_REGISTERCONTEXTPOSIXCORE_ARM64_H
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#define LLDB_SOURCE_PLUGINS_PROCESS_ELF_CORE_REGISTERCONTEXTPOSIXCORE_ARM64_H
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#include "Plugins/Process/Utility/LinuxPTraceDefines_arm64sve.h"
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#include "Plugins/Process/Utility/RegisterContextPOSIX_arm64.h"
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#include "Plugins/Process/Utility/RegisterFlagsLinux_arm64.h"
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#include "Plugins/Process/elf-core/RegisterUtilities.h"
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#include "lldb/Utility/DataBufferHeap.h"
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#include "lldb/Utility/DataExtractor.h"
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class RegisterContextCorePOSIX_arm64 : public RegisterContextPOSIX_arm64 {
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public:
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  static std::unique_ptr<RegisterContextCorePOSIX_arm64>
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  Create(lldb_private::Thread &thread, const lldb_private::ArchSpec &arch,
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         const lldb_private::DataExtractor &gpregset,
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         llvm::ArrayRef<lldb_private::CoreNote> notes);
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  ~RegisterContextCorePOSIX_arm64() override;
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  bool ReadRegister(const lldb_private::RegisterInfo *reg_info,
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                    lldb_private::RegisterValue &value) override;
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  bool WriteRegister(const lldb_private::RegisterInfo *reg_info,
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                     const lldb_private::RegisterValue &value) override;
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  bool ReadAllRegisterValues(lldb::WritableDataBufferSP &data_sp) override;
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  bool WriteAllRegisterValues(const lldb::DataBufferSP &data_sp) override;
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  bool HardwareSingleStep(bool enable) override;
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protected:
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  RegisterContextCorePOSIX_arm64(
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      lldb_private::Thread &thread,
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      std::unique_ptr<RegisterInfoPOSIX_arm64> register_info,
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      const lldb_private::DataExtractor &gpregset,
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      llvm::ArrayRef<lldb_private::CoreNote> notes);
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  bool ReadGPR() override;
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  bool ReadFPR() override;
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  bool WriteGPR() override;
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  bool WriteFPR() override;
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private:
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  lldb_private::DataExtractor m_gpr_data;
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  lldb_private::DataExtractor m_fpr_data;
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  lldb_private::DataExtractor m_sve_data;
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  lldb_private::DataExtractor m_pac_data;
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  lldb_private::DataExtractor m_tls_data;
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  lldb_private::DataExtractor m_za_data;
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  lldb_private::DataExtractor m_mte_data;
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  lldb_private::DataExtractor m_zt_data;
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  SVEState m_sve_state = SVEState::Unknown;
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  uint16_t m_sve_vector_length = 0;
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  // These are pseudo registers derived from the values in SSVE and ZA data.
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  struct __attribute__((packed)) sme_pseudo_regs {
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    uint64_t ctrl_reg;
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    uint64_t svg_reg;
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  };
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  static_assert(sizeof(sme_pseudo_regs) == 16);
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  struct sme_pseudo_regs m_sme_pseudo_regs;
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  lldb_private::LinuxArm64RegisterFlags m_linux_register_flags;
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  const uint8_t *GetSVEBuffer(uint64_t offset = 0);
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  void ConfigureRegisterContext();
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  uint32_t CalculateSVEOffset(const lldb_private::RegisterInfo *reg_info);
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  uint64_t GetSVERegVG() { return m_sve_vector_length / 8; }
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};
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#endif // LLDB_SOURCE_PLUGINS_PROCESS_ELF_CORE_REGISTERCONTEXTPOSIXCORE_ARM64_H