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

   1 //===-- RegisterInfoInterface.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 lldb_RegisterInfoInterface_h
  11 #define lldb_RegisterInfoInterface_h
  12
  13 #include <vector>
  14
  15 #include "lldb/Core/ArchSpec.h"
  16
  17 namespace lldb_private
  18 {
  19
  20     ///------------------------------------------------------------------------------
  21     /// @class RegisterInfoInterface
  22     ///
  23     /// @brief RegisterInfo interface to patch RegisterInfo structure for archs.
  24     ///------------------------------------------------------------------------------
  25     class RegisterInfoInterface
  26     {
  27     public:
  28         RegisterInfoInterface(const lldb_private::ArchSpec& target_arch) : m_target_arch(target_arch) {}
  29         virtual ~RegisterInfoInterface () {}
  30
  31         virtual size_t
  32         GetGPRSize () const = 0;
  33
  34         virtual const lldb_private::RegisterInfo *
  35         GetRegisterInfo () const = 0;
  36
  37         // Returns the number of registers including the user registers and the
  38         // lldb internal registers also
  39         virtual uint32_t
  40         GetRegisterCount () const = 0;
  41
  42         // Returns the number of the user registers (excluding the registers
  43         // kept for lldb internal use only). Subclasses should override it if
  44         // they belongs to an architecture with lldb internal registers.
  45         virtual uint32_t
  46         GetUserRegisterCount () const
  47         {
  48             return GetRegisterCount();
  49         }
  50
  51         const lldb_private::ArchSpec&
  52         GetTargetArchitecture() const
  53             { return m_target_arch; }
  54
  55         virtual const lldb_private::RegisterInfo *
  56         GetDynamicRegisterInfo(const char *reg_name) const
  57         {
  58             const std::vector <lldb_private::RegisterInfo> * d_register_infos = GetDynamicRegisterInfoP();
  59             if(d_register_infos != nullptr)
  60             {
  61                 std::vector <lldb_private::RegisterInfo> ::const_iterator pos = d_register_infos->begin();
  62                 for(; pos < d_register_infos->end() ; pos++)
  63                 {
  64                     if(::strcmp(reg_name, pos->name) == 0)
  65                         return(d_register_infos->data() + (pos - d_register_infos->begin()) );
  66                 }
  67             }
  68             return nullptr;
  69         }
  70
  71         virtual const std::vector<lldb_private::RegisterInfo> *
  72         GetDynamicRegisterInfoP() const
  73         { return nullptr; }
  74
  75     public:
  76         // FIXME make private.
  77         lldb_private::ArchSpec m_target_arch;
  78     };
  79
  80 }
  81
  82 #endif