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Diffstat (limited to 'source/Plugins/Process/Linux/NativeRegisterContextLinux_ppc64le.h')
| -rw-r--r-- | source/Plugins/Process/Linux/NativeRegisterContextLinux_ppc64le.h | 149 |
1 files changed, 149 insertions, 0 deletions
diff --git a/source/Plugins/Process/Linux/NativeRegisterContextLinux_ppc64le.h b/source/Plugins/Process/Linux/NativeRegisterContextLinux_ppc64le.h new file mode 100644 index 000000000000..bb25af80d02c --- /dev/null +++ b/source/Plugins/Process/Linux/NativeRegisterContextLinux_ppc64le.h @@ -0,0 +1,149 @@ +//===-- NativeRegisterContextLinux_ppc64le.h --------------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +// This implementation is related to the OpenPOWER ABI for Power Architecture +// 64-bit ELF V2 ABI + +#if defined(__powerpc64__) + +#ifndef lldb_NativeRegisterContextLinux_ppc64le_h +#define lldb_NativeRegisterContextLinux_ppc64le_h + +#include "Plugins/Process/Linux/NativeRegisterContextLinux.h" +#include "Plugins/Process/Utility/lldb-ppc64le-register-enums.h" + +#define DECLARE_REGISTER_INFOS_PPC64LE_STRUCT +#include "RegisterInfos_ppc64le.h" +#undef DECLARE_REGISTER_INFOS_PPC64LE_STRUCT + +namespace lldb_private { +namespace process_linux { + +class NativeProcessLinux; + +class NativeRegisterContextLinux_ppc64le : public NativeRegisterContextLinux { +public: + NativeRegisterContextLinux_ppc64le(const ArchSpec &target_arch, + NativeThreadProtocol &native_thread); + + uint32_t GetRegisterSetCount() const override; + + uint32_t GetUserRegisterCount() const override; + + const RegisterSet *GetRegisterSet(uint32_t set_index) const override; + + Status ReadRegister(const RegisterInfo *reg_info, + RegisterValue ®_value) override; + + Status WriteRegister(const RegisterInfo *reg_info, + const RegisterValue ®_value) override; + + Status ReadAllRegisterValues(lldb::DataBufferSP &data_sp) override; + + Status WriteAllRegisterValues(const lldb::DataBufferSP &data_sp) override; + + //------------------------------------------------------------------ + // Hardware watchpoint mangement functions + //------------------------------------------------------------------ + + uint32_t NumSupportedHardwareWatchpoints() override; + + uint32_t SetHardwareWatchpoint(lldb::addr_t addr, size_t size, + uint32_t watch_flags) override; + + bool ClearHardwareWatchpoint(uint32_t hw_index) override; + + Status GetWatchpointHitIndex(uint32_t &wp_index, + lldb::addr_t trap_addr) override; + + lldb::addr_t GetWatchpointHitAddress(uint32_t wp_index) override; + + lldb::addr_t GetWatchpointAddress(uint32_t wp_index) override; + + uint32_t GetWatchpointSize(uint32_t wp_index); + + bool WatchpointIsEnabled(uint32_t wp_index); + +protected: + Status DoReadGPR(void *buf, size_t buf_size) override; + + Status DoWriteGPR(void *buf, size_t buf_size) override; + + Status DoReadFPR(void *buf, size_t buf_size) override; + + Status DoWriteFPR(void *buf, size_t buf_size) override; + + bool IsVMX(unsigned reg); + + bool IsVSX(unsigned reg); + + Status ReadVMX(); + + Status WriteVMX(); + + Status ReadVSX(); + + Status WriteVSX(); + + void *GetGPRBuffer() override { return &m_gpr_ppc64le; } + + void *GetFPRBuffer() override { return &m_fpr_ppc64le; } + + size_t GetFPRSize() override { return sizeof(m_fpr_ppc64le); } + +private: + GPR m_gpr_ppc64le; // 64-bit general purpose registers. + FPR m_fpr_ppc64le; // floating-point registers including extended register. + VMX m_vmx_ppc64le; // VMX registers. + VSX m_vsx_ppc64le; // Last lower bytes from first VSX registers. + + bool IsGPR(unsigned reg) const; + + bool IsFPR(unsigned reg) const; + + bool IsVMX(unsigned reg) const; + + bool IsVSX(unsigned reg) const; + + uint32_t CalculateFprOffset(const RegisterInfo *reg_info) const; + + uint32_t CalculateVmxOffset(const RegisterInfo *reg_info) const; + + uint32_t CalculateVsxOffset(const RegisterInfo *reg_info) const; + + Status ReadHardwareDebugInfo(); + + Status WriteHardwareDebugRegs(); + + // Debug register info for hardware watchpoints management. + struct DREG { + lldb::addr_t address; // Breakpoint/watchpoint address value. + lldb::addr_t hit_addr; // Address at which last watchpoint trigger + // exception occurred. + lldb::addr_t real_addr; // Address value that should cause target to stop. + uint32_t control; // Breakpoint/watchpoint control value. + uint32_t refcount; // Serves as enable/disable and reference counter. + long slot; // Saves the value returned from PTRACE_SETHWDEBUG. + int mode; // Defines if watchpoint is read/write/access. + }; + + std::array<DREG, 4> m_hwp_regs; + + // 16 is just a maximum value, query hardware for actual watchpoint count + uint32_t m_max_hwp_supported = 16; + uint32_t m_max_hbp_supported = 16; + bool m_refresh_hwdebug_info = true; +}; + +} // namespace process_linux +} // namespace lldb_private + +#endif // #ifndef lldb_NativeRegisterContextLinux_ppc64le_h + +#endif // defined(__powerpc64__) |
