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

   1 //===-- RegisterContextPOSIX_arm.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_arm_h_
  11 #define liblldb_RegisterContextPOSIX_arm_h_
  12
  13 #include "RegisterInfoInterface.h"
  14 #include "lldb-arm-register-enums.h"
  15 #include "lldb/Target/RegisterContext.h"
  16 #include "lldb/Utility/Log.h"
  17
  18 class ProcessMonitor;
  19
  20 class RegisterContextPOSIX_arm : public lldb_private::RegisterContext {
  21 public:
  22   RegisterContextPOSIX_arm(lldb_private::Thread &thread,
  23                            uint32_t concrete_frame_idx,
  24                            lldb_private::RegisterInfoInterface *register_info);
  25
  26   ~RegisterContextPOSIX_arm() override;
  27
  28   void Invalidate();
  29
  30   void InvalidateAllRegisters() override;
  31
  32   size_t GetRegisterCount() override;
  33
  34   virtual size_t GetGPRSize();
  35
  36   virtual unsigned GetRegisterSize(unsigned reg);
  37
  38   virtual unsigned GetRegisterOffset(unsigned reg);
  39
  40   const lldb_private::RegisterInfo *GetRegisterInfoAtIndex(size_t reg) override;
  41
  42   size_t GetRegisterSetCount() override;
  43
  44   const lldb_private::RegisterSet *GetRegisterSet(size_t set) override;
  45
  46   const char *GetRegisterName(unsigned reg);
  47
  48   uint32_t ConvertRegisterKindToRegisterNumber(lldb::RegisterKind kind,
  49                                                uint32_t num) override;
  50
  51 protected:
  52   struct RegInfo {
  53     uint32_t num_registers;
  54     uint32_t num_gpr_registers;
  55     uint32_t num_fpr_registers;
  56
  57     uint32_t last_gpr;
  58     uint32_t first_fpr;
  59     uint32_t last_fpr;
  60
  61     uint32_t first_fpr_v;
  62     uint32_t last_fpr_v;
  63
  64     uint32_t gpr_flags;
  65   };
  66
  67   struct QReg {
  68     uint8_t bytes[16];
  69   };
  70
  71   struct FPU {
  72     union {
  73       uint32_t s[32];
  74       uint64_t d[32];
  75       QReg q[16]; // the 128-bit NEON registers
  76     } floats;
  77     uint32_t fpscr;
  78   };
  79
  80   uint32_t m_gpr_arm[lldb_private::k_num_gpr_registers_arm]; // 32-bit general
  81                                                              // purpose
  82                                                              // registers.
  83   RegInfo m_reg_info;
  84   struct RegisterContextPOSIX_arm::FPU
  85       m_fpr; // floating-point registers including extended register sets.
  86   std::unique_ptr<lldb_private::RegisterInfoInterface>
  87       m_register_info_ap; // Register Info Interface (FreeBSD or Linux)
  88
  89   // Determines if an extended register set is supported on the processor
  90   // running the inferior process.
  91   virtual bool IsRegisterSetAvailable(size_t set_index);
  92
  93   virtual const lldb_private::RegisterInfo *GetRegisterInfo();
  94
  95   bool IsGPR(unsigned reg);
  96
  97   bool IsFPR(unsigned reg);
  98
  99   lldb::ByteOrder GetByteOrder();
 100
 101   virtual bool ReadGPR() = 0;
 102   virtual bool ReadFPR() = 0;
 103   virtual bool WriteGPR() = 0;
 104   virtual bool WriteFPR() = 0;
 105 };
 106
 107 #endif // liblldb_RegisterContextPOSIX_arm_h_