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
83