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 "lldb/Core/Log.h"
  14 #include "lldb-arm-register-enums.h"
  15 #include "RegisterContextPOSIX.h"
  16
  17 class ProcessMonitor;
  18
  19 class RegisterContextPOSIX_arm
  20   : public lldb_private::RegisterContext
  21 {
  22 public:
  23     RegisterContextPOSIX_arm (lldb_private::Thread &thread,
  24                             uint32_t concrete_frame_idx,
  25                             lldb_private::RegisterInfoInterface *register_info);
  26
  27     ~RegisterContextPOSIX_arm();
  28
  29     void
  30     Invalidate();
  31
  32     void
  33     InvalidateAllRegisters();
  34
  35     size_t
  36     GetRegisterCount();
  37
  38     virtual size_t
  39     GetGPRSize();
  40
  41     virtual unsigned
  42     GetRegisterSize(unsigned reg);
  43
  44     virtual unsigned
  45     GetRegisterOffset(unsigned reg);
  46
  47     const lldb_private::RegisterInfo *
  48     GetRegisterInfoAtIndex(size_t reg);
  49
  50     size_t
  51     GetRegisterSetCount();
  52
  53     const lldb_private::RegisterSet *
  54     GetRegisterSet(size_t set);
  55
  56     const char *
  57     GetRegisterName(unsigned reg);
  58
  59     uint32_t
  60     ConvertRegisterKindToRegisterNumber(lldb::RegisterKind kind, uint32_t num);
  61
  62 protected:
  63     struct RegInfo
  64     {
  65         uint32_t num_registers;
  66         uint32_t num_gpr_registers;
  67         uint32_t num_fpr_registers;
  68
  69         uint32_t last_gpr;
  70         uint32_t first_fpr;
  71         uint32_t last_fpr;
  72
  73         uint32_t first_fpr_v;
  74         uint32_t last_fpr_v;
  75
  76         uint32_t gpr_flags;
  77     };
  78
  79     struct QReg
  80     {
  81         uint8_t bytes[16];
  82     };
  83
  84     struct FPU
  85     {
  86         union {
  87             uint32_t s[32];
  88             uint64_t d[32];
  89             QReg     q[16];  // the 128-bit NEON registers
  90             } floats;
  91         uint32_t fpscr;
  92     };
  93
  94     uint32_t m_gpr_arm[lldb_private::k_num_gpr_registers_arm];           // 32-bit general purpose registers.
  95     RegInfo  m_reg_info;
  96     struct RegisterContextPOSIX_arm::FPU m_fpr;                            // floating-point registers including extended register sets.
  97     std::unique_ptr<lldb_private::RegisterInfoInterface> m_register_info_ap; // Register Info Interface (FreeBSD or Linux)
  98
  99     // Determines if an extended register set is supported on the processor running the inferior process.
 100     virtual bool
 101     IsRegisterSetAvailable(size_t set_index);
 102
 103     virtual const lldb_private::RegisterInfo *
 104     GetRegisterInfo();
 105
 106     bool
 107     IsGPR(unsigned reg);
 108
 109     bool
 110     IsFPR(unsigned reg);
 111
 112     lldb::ByteOrder GetByteOrder();
 113
 114     virtual bool ReadGPR() = 0;
 115     virtual bool ReadFPR() = 0;
 116     virtual bool WriteGPR() = 0;
 117     virtual bool WriteFPR() = 0;
 118 };
 119
 120 #endif // #ifndef liblldb_RegisterContextPOSIX_arm_H_
 121