contrib/llvm/tools/lldb/source/Host/common/NativeRegisterContextRegisterInfo.cpp

   1 //===-- NativeRegisterContex.cpp --------------------------------*- 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 #include "lldb/lldb-types.h"
  11 #include "lldb/lldb-private-forward.h"
  12 #include "lldb/Host/common/NativeRegisterContextRegisterInfo.h"
  13
  14 using namespace lldb_private;
  15
  16 NativeRegisterContextRegisterInfo::NativeRegisterContextRegisterInfo (NativeThreadProtocol &thread,
  17                                                                       uint32_t concrete_frame_idx,
  18                                                                       RegisterInfoInterface *register_info_interface) :
  19     NativeRegisterContext (thread, concrete_frame_idx),
  20     m_register_info_interface_up (register_info_interface)
  21 {
  22     assert (register_info_interface && "null register_info_interface");
  23 }
  24
  25 uint32_t
  26 NativeRegisterContextRegisterInfo::GetRegisterCount () const
  27 {
  28     return m_register_info_interface_up->GetRegisterCount ();
  29 }
  30
  31 uint32_t
  32 NativeRegisterContextRegisterInfo::GetUserRegisterCount () const
  33 {
  34     return m_register_info_interface_up->GetUserRegisterCount ();
  35 }
  36
  37 const RegisterInfo *
  38 NativeRegisterContextRegisterInfo::GetRegisterInfoAtIndex (uint32_t reg_index) const
  39 {
  40     if (reg_index <= GetRegisterCount ())
  41         return m_register_info_interface_up->GetRegisterInfo () + reg_index;
  42     else
  43         return nullptr;
  44 }
  45
  46 const RegisterInfoInterface&
  47 NativeRegisterContextRegisterInfo::GetRegisterInfoInterface () const
  48 {
  49     return *m_register_info_interface_up;
  50 }