contrib/llvm/tools/lldb/source/Plugins/Process/Utility/RegisterContextPOSIX_arm64.h

   1 //===-- RegisterContextPOSIX_arm64.h ----------------------------*- C++ -*-===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is distributed under the University of Illinois Open Source
   6 // License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9
  10 #ifndef liblldb_RegisterContextPOSIX_arm64_h_
  11 #define liblldb_RegisterContextPOSIX_arm64_h_
  12
  13 // C Includes
  14 // C++ Includes
  15 // Other libraries and framework includes
  16 // Project includes
  17 #include "lldb/Core/Log.h"
  18 #include "lldb/Target/RegisterContext.h"
  19 #include "RegisterInfoInterface.h"
  20 #include "lldb-arm64-register-enums.h"
  21
  22 class ProcessMonitor;
  23
  24 class RegisterContextPOSIX_arm64
  25   : public lldb_private::RegisterContext
  26 {
  27 public:
  28     RegisterContextPOSIX_arm64 (lldb_private::Thread &thread,
  29                             uint32_t concrete_frame_idx,
  30                             lldb_private::RegisterInfoInterface *register_info);
  31
  32     ~RegisterContextPOSIX_arm64() override;
  33
  34     void
  35     Invalidate();
  36
  37     void
  38     InvalidateAllRegisters() override;
  39
  40     size_t
  41     GetRegisterCount() override;
  42
  43     virtual size_t
  44     GetGPRSize();
  45
  46     virtual unsigned
  47     GetRegisterSize(unsigned reg);
  48
  49     virtual unsigned
  50     GetRegisterOffset(unsigned reg);
  51
  52     const lldb_private::RegisterInfo *
  53     GetRegisterInfoAtIndex(size_t reg) override;
  54
  55     size_t
  56     GetRegisterSetCount() override;
  57
  58     const lldb_private::RegisterSet *
  59     GetRegisterSet(size_t set) override;
  60
  61     const char *
  62     GetRegisterName(unsigned reg);
  63
  64     uint32_t
  65     ConvertRegisterKindToRegisterNumber(lldb::RegisterKind kind, uint32_t num) override;
  66
  67 protected:
  68     struct RegInfo
  69     {
  70         uint32_t num_registers;
  71         uint32_t num_gpr_registers;
  72         uint32_t num_fpr_registers;
  73
  74         uint32_t last_gpr;
  75         uint32_t first_fpr;
  76         uint32_t last_fpr;
  77
  78         uint32_t first_fpr_v;
  79         uint32_t last_fpr_v;
  80
  81         uint32_t gpr_flags;
  82     };
  83
  84     // based on RegisterContextDarwin_arm64.h
  85     struct VReg
  86     {
  87         uint8_t bytes[16];
  88     };
  89
  90     // based on RegisterContextDarwin_arm64.h
  91     struct FPU
  92     {
  93         VReg        v[32];
  94         uint32_t    fpsr;
  95         uint32_t    fpcr;
  96     };
  97
  98     uint64_t m_gpr_arm64[lldb_private::k_num_gpr_registers_arm64];           // 64-bit general purpose registers.
  99     RegInfo  m_reg_info;
 100     struct RegisterContextPOSIX_arm64::FPU m_fpr;                            // floating-point registers including extended register sets.
 101     std::unique_ptr<lldb_private::RegisterInfoInterface> m_register_info_ap; // Register Info Interface (FreeBSD or Linux)
 102
 103     // Determines if an extended register set is supported on the processor running the inferior process.
 104     virtual bool
 105     IsRegisterSetAvailable(size_t set_index);
 106
 107     virtual const lldb_private::RegisterInfo *
 108     GetRegisterInfo();
 109
 110     bool
 111     IsGPR(unsigned reg);
 112
 113     bool
 114     IsFPR(unsigned reg);
 115
 116     lldb::ByteOrder GetByteOrder();
 117
 118     virtual bool ReadGPR() = 0;
 119     virtual bool ReadFPR() = 0;
 120     virtual bool WriteGPR() = 0;
 121     virtual bool WriteFPR() = 0;
 122 };
 123
 124 #endif // liblldb_RegisterContextPOSIX_arm64_h_