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1//===-- NativeRegisterContextLinux_ppc64le.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-exception6//7//===----------------------------------------------------------------------===//8 9// This implementation is related to the OpenPOWER ABI for Power Architecture10// 64-bit ELF V2 ABI11 12#if defined(__powerpc64__)13 14#ifndef lldb_NativeRegisterContextLinux_ppc64le_h15#define lldb_NativeRegisterContextLinux_ppc64le_h16 17#include "Plugins/Process/Linux/NativeRegisterContextLinux.h"18#include "Plugins/Process/Utility/lldb-ppc64le-register-enums.h"19 20#define DECLARE_REGISTER_INFOS_PPC64LE_STRUCT21#include "Plugins/Process/Utility/RegisterInfos_ppc64le.h"22#undef DECLARE_REGISTER_INFOS_PPC64LE_STRUCT23 24namespace lldb_private {25namespace process_linux {26 27class NativeProcessLinux;28 29class NativeRegisterContextLinux_ppc64le : public NativeRegisterContextLinux {30public:31 NativeRegisterContextLinux_ppc64le(const ArchSpec &target_arch,32 NativeThreadProtocol &native_thread);33 34 uint32_t GetRegisterSetCount() const override;35 36 uint32_t GetUserRegisterCount() const override;37 38 const RegisterSet *GetRegisterSet(uint32_t set_index) const override;39 40 Status ReadRegister(const RegisterInfo *reg_info,41 RegisterValue ®_value) override;42 43 Status WriteRegister(const RegisterInfo *reg_info,44 const RegisterValue ®_value) override;45 46 Status ReadAllRegisterValues(lldb::WritableDataBufferSP &data_sp) override;47 48 Status WriteAllRegisterValues(const lldb::DataBufferSP &data_sp) override;49 50 // Hardware watchpoint management functions51 52 uint32_t NumSupportedHardwareWatchpoints() override;53 54 uint32_t SetHardwareWatchpoint(lldb::addr_t addr, size_t size,55 uint32_t watch_flags) override;56 57 bool ClearHardwareWatchpoint(uint32_t hw_index) override;58 59 Status GetWatchpointHitIndex(uint32_t &wp_index,60 lldb::addr_t trap_addr) override;61 62 lldb::addr_t GetWatchpointHitAddress(uint32_t wp_index) override;63 64 lldb::addr_t GetWatchpointAddress(uint32_t wp_index) override;65 66 uint32_t GetWatchpointSize(uint32_t wp_index);67 68 bool WatchpointIsEnabled(uint32_t wp_index);69 70protected:71 bool IsVMX(unsigned reg);72 73 bool IsVSX(unsigned reg);74 75 Status ReadVMX();76 77 Status WriteVMX();78 79 Status ReadVSX();80 81 Status WriteVSX();82 83 void *GetGPRBuffer() override { return &m_gpr_ppc64le; }84 85 void *GetFPRBuffer() override { return &m_fpr_ppc64le; }86 87 size_t GetFPRSize() override { return sizeof(m_fpr_ppc64le); }88 89private:90 GPR m_gpr_ppc64le; // 64-bit general purpose registers.91 FPR m_fpr_ppc64le; // floating-point registers including extended register.92 VMX m_vmx_ppc64le; // VMX registers.93 VSX m_vsx_ppc64le; // Last lower bytes from first VSX registers.94 95 bool IsGPR(unsigned reg) const;96 97 bool IsFPR(unsigned reg) const;98 99 bool IsVMX(unsigned reg) const;100 101 bool IsVSX(unsigned reg) const;102 103 uint32_t CalculateFprOffset(const RegisterInfo *reg_info) const;104 105 uint32_t CalculateVmxOffset(const RegisterInfo *reg_info) const;106 107 uint32_t CalculateVsxOffset(const RegisterInfo *reg_info) const;108 109 Status ReadHardwareDebugInfo();110 111 Status WriteHardwareDebugRegs();112 113 // Debug register info for hardware watchpoints management.114 struct DREG {115 lldb::addr_t address; // Breakpoint/watchpoint address value.116 lldb::addr_t hit_addr; // Address at which last watchpoint trigger117 // exception occurred.118 lldb::addr_t real_addr; // Address value that should cause target to stop.119 uint32_t control; // Breakpoint/watchpoint control value.120 uint32_t refcount; // Serves as enable/disable and reference counter.121 long slot; // Saves the value returned from PTRACE_SETHWDEBUG.122 int mode; // Defines if watchpoint is read/write/access.123 };124 125 std::array<DREG, 16> m_hwp_regs;126 127 // 16 is just a maximum value, query hardware for actual watchpoint count128 uint32_t m_max_hwp_supported = 16;129 uint32_t m_max_hbp_supported = 16;130 bool m_refresh_hwdebug_info = true;131};132 133} // namespace process_linux134} // namespace lldb_private135 136#endif // #ifndef lldb_NativeRegisterContextLinux_ppc64le_h137 138#endif // defined(__powerpc64__)139