C++ LibraryLoader::ResolveExport方法代码示例

void *xbp_dlsym(void *handle, const char *symbol)
{
  LibraryLoader *pDll = (LibraryLoader*)handle;
  CLog::Log(LOGDEBUG,"%s - load symbol %s", __FUNCTION__, symbol);
  void *f = NULL;
  if (pDll && pDll->ResolveExport(symbol, &f))
    return f;

  return NULL;
}

extern "C" FARPROC __stdcall dllGetProcAddress(HMODULE hModule, LPCSTR function)
{
  uintptr_t loc = (uintptr_t)_ReturnAddress();

  void* address = NULL;
  LibraryLoader* dll = DllLoaderContainer::GetModule(hModule);

  if( !dll )
  {
    CLog::Log(LOGERROR, "%s - Invalid hModule specified",__FUNCTION__);
    return NULL;
  }

  /* how can somebody get the stupid idea to create such a stupid function */
  /* where you never know if the given pointer is a pointer or a value */
  if( HIGH_WORD(function) == 0 && LOW_WORD(function) < 1000)
  {
    if( dll->ResolveOrdinal(LOW_WORD(function), &address) )
    {
      CLog::Log(LOGDEBUG, "%s(%p(%s), %d) => %p", __FUNCTION__, hModule, dll->GetName(), LOW_WORD(function), address);
    }
    else if( dll->IsSystemDll() )
    {
      char ordinal[5];
      sprintf(ordinal, "%d", LOW_WORD(function));
      address = (void*)create_dummy_function(dll->GetName(), ordinal);

      /* add to tracklist if we are tracking this source dll */
      DllTrackInfo* track = tracker_get_dlltrackinfo(loc);
      if( track )
        tracker_dll_data_track(track->pDll, (uintptr_t)address);

      CLog::Log(LOGDEBUG, "%s - created dummy function %s!%s",__FUNCTION__, dll->GetName(), ordinal);
    }
    else
    {
      address = NULL;
      CLog::Log(LOGDEBUG, "%s(%p(%s), '%s') => %p",__FUNCTION__ , hModule, dll->GetName(), function, address);
    }
  }
  else
  {
    if( dll->ResolveExport(function, &address) )
    {
      CLog::Log(LOGDEBUG, "%s(%p(%s), '%s') => %p",__FUNCTION__ , hModule, dll->GetName(), function, address);
    }
    else
    {
      DllTrackInfo* track = tracker_get_dlltrackinfo(loc);
      /* some dll's require us to always return a function or it will fail, other's  */
      /* decide functionallity depending on if the functions exist and may fail      */
      if( dll->IsSystemDll() && track
       && stricmp(track->pDll->GetName(), "CoreAVCDecoder.ax") == 0 )
      {
        address = (void*)create_dummy_function(dll->GetName(), function);
        tracker_dll_data_track(track->pDll, (uintptr_t)address);
        CLog::Log(LOGDEBUG, "%s - created dummy function %s!%s", __FUNCTION__, dll->GetName(), function);
      }
      else
      {
        address = NULL;
        CLog::Log(LOGDEBUG, "%s(%p(%s), '%s') => %p", __FUNCTION__, hModule, dll->GetName(), function, address);
      }
    }
  }

  return (FARPROC)address;
}

  bool python_load_dll(LibraryLoader& dll)
  {
    bool bResult;

    bResult = (
      dll.ResolveExport(DLL_FUNCTION(PyEval_ReleaseLock)) &&
      dll.ResolveExport(DLL_FUNCTION(PyEval_AcquireLock)) &&
      dll.ResolveExport(DLL_FUNCTION(PyThreadState_Get)) &&
      dll.ResolveExport(DLL_FUNCTION(PyRun_SimpleString)) &&
      dll.ResolveExport(DLL_FUNCTION(PyEval_InitThreads)) &&
      dll.ResolveExport(DLL_FUNCTION(PyEval_ThreadsInitialized)) &&
      dll.ResolveExport(DLL_FUNCTION(Py_Initialize)) &&
      dll.ResolveExport(DLL_FUNCTION(Py_IsInitialized)) &&
      dll.ResolveExport(DLL_FUNCTION(Py_Finalize)) &&
      dll.ResolveExport(DLL_FUNCTION(Py_NewInterpreter)) &&
      dll.ResolveExport(DLL_FUNCTION(Py_EndInterpreter)) &&
      dll.ResolveExport(DLL_FUNCTION(PyThreadState_Swap)) &&
      dll.ResolveExport(DLL_FUNCTION(PyErr_SetString)) &&
      dll.ResolveExport(DLL_FUNCTION(PyThreadState_New)) &&
      dll.ResolveExport(DLL_FUNCTION(PyErr_Print)) &&
      dll.ResolveExport(DLL_FUNCTION(PyErr_Occurred)) &&
      dll.ResolveExport(DLL_FUNCTION(PyRun_SimpleFile)) &&
      dll.ResolveExport(DLL_FUNCTION(PySys_SetPath)) &&
      dll.ResolveExport(DLL_FUNCTION(Py_GetPath)) &&
      dll.ResolveExport(DLL_FUNCTION(PyThreadState_Delete)) &&
      dll.ResolveExport(DLL_FUNCTION(PyThreadState_Clear)) &&
      dll.ResolveExport(DLL_VA_FUNCTION(Py_BuildValue)) &&
      dll.ResolveExport(DLL_FUNCTION(PyType_IsSubtype)) &&
      dll.ResolveExport(DLL_VA_FUNCTION(PyArg_ParseTupleAndKeywords)) &&
      dll.ResolveExport(DLL_FUNCTION(PyString_AsString)) &&
      dll.ResolveExport(DLL_FUNCTION(Py_AddPendingCall)) &&
      dll.ResolveExport(DLL_VA_FUNCTION(PyObject_CallMethod)) &&
      dll.ResolveExport(DLL_FUNCTION(PyList_GetItem)) &&
      dll.ResolveExport(DLL_FUNCTION(PyList_Size)) &&
      dll.ResolveExport(DLL_FUNCTION(PyList_New)) &&
      dll.ResolveExport(DLL_FUNCTION(PyList_Append)) &&
      dll.ResolveExport(DLL_FUNCTION(_PyObject_New)) &&               
      dll.ResolveExport(DLL_FUNCTION(PyLong_AsLong)) &&
      dll.ResolveExport(DLL_FUNCTION(PyLong_AsLongLong)) &&
      dll.ResolveExport(DLL_VA_FUNCTION(PyErr_Format)) &&
#ifndef _LINUX
      dll.ResolveExport(DLL_FUNCTION(PyUnicodeUCS2_AsUTF8String)) &&
      dll.ResolveExport(DLL_FUNCTION(PyUnicodeUCS2_DecodeUTF8)) &&
#else
      dll.ResolveExport(DLL_FUNCTION(PyUnicodeUCS4_AsUTF8String)) &&
      dll.ResolveExport(DLL_FUNCTION(PyUnicodeUCS4_DecodeUTF8)) &&
#endif
      dll.ResolveExport(DLL_FUNCTION(Py_MakePendingCalls)) &&
      dll.ResolveExport(DLL_FUNCTION(PyEval_SaveThread)) &&
      dll.ResolveExport(DLL_FUNCTION(PyEval_RestoreThread)) &&
      dll.ResolveExport(DLL_FUNCTION(PyLong_FromLong)) &&
      dll.ResolveExport(DLL_FUNCTION(PyModule_AddStringConstant)) &&
      dll.ResolveExport(DLL_FUNCTION(PyModule_AddObject)) &&
      dll.ResolveExport(DLL_FUNCTION(Py_InitModule4)) &&
      dll.ResolveExport(DLL_FUNCTION(PyInt_AsLong)) &&
      dll.ResolveExport(DLL_FUNCTION(PyFloat_AsDouble)) &&
      dll.ResolveExport(DLL_FUNCTION(PyString_FromString)) &&
      dll.ResolveExport(DLL_FUNCTION(PyBool_FromLong)) &&
      dll.ResolveExport(DLL_FUNCTION(PyModule_AddIntConstant)) &&
      dll.ResolveExport(DLL_VA_FUNCTION(PyObject_CallFunction)) &&
      dll.ResolveExport(DLL_FUNCTION(PyDict_SetItemString)) &&
      dll.ResolveExport(DLL_FUNCTION(PyDict_New)) &&
      dll.ResolveExport(DLL_FUNCTION(PyModule_GetDict)) &&
      dll.ResolveExport(DLL_FUNCTION(PyImport_Import)) &&
      dll.ResolveExport(DLL_FUNCTION(PyFloat_FromDouble)) &&
      dll.ResolveExport(DLL_FUNCTION(PyInt_FromLong)) &&
      dll.ResolveExport(DLL_FUNCTION(PyDict_GetItemString)) &&
      //dll.ResolveExport(DLL_FUNCTION(PyDict_GetItem)) &&
      //dll.ResolveExport(DLL_FUNCTION(PyDict_Keys)) &&
      dll.ResolveExport(DLL_FUNCTION(PyDict_Next)) &&
      dll.ResolveExport(DLL_FUNCTION(PyDict_Size)) &&
      dll.ResolveExport(DLL_FUNCTION(PyType_Ready)) &&
      dll.ResolveExport(DLL_FUNCTION(PyType_GenericNew)) &&
      dll.ResolveExport(DLL_FUNCTION(PyTuple_New)) &&
      dll.ResolveExport(DLL_FUNCTION(PyTuple_SetItem)) &&
      dll.ResolveExport(DLL_VA_FUNCTION(PyArg_Parse)) &&
      dll.ResolveExport(DLL_VA_FUNCTION(PyArg_ParseTuple)) &&
      dll.ResolveExport(DLL_FUNCTION(PySys_SetArgv)) &&
      dll.ResolveExport(DLL_FUNCTION(PyObject_RichCompare)) &&

      dll.ResolveExport(DLL_OBJECT_DATA(PyExc_SystemExit)) &&
      dll.ResolveExport(DLL_OBJECT_DATA(PyExc_SystemError)) &&
      dll.ResolveExport(DLL_OBJECT_DATA(PyExc_ValueError)) &&
      dll.ResolveExport(DLL_OBJECT_DATA(PyExc_Exception)) &&
      dll.ResolveExport(DLL_OBJECT_DATA(PyExc_TypeError)) &&
      dll.ResolveExport(DLL_OBJECT_DATA(PyExc_KeyboardInterrupt)) &&
      dll.ResolveExport(DLL_OBJECT_DATA(PyExc_RuntimeError)) &&
      dll.ResolveExport(DLL_OBJECT_DATA(PyExc_ReferenceError)) &&

      dll.ResolveExport(DLL_OBJECT_DATA(_Py_NoneStruct)) &&
      dll.ResolveExport(DLL_OBJECT_DATA(_Py_NotImplementedStruct)) &&
      dll.ResolveExport(DLL_OBJECT_DATA(_Py_TrueStruct)) &&
      dll.ResolveExport(DLL_OBJECT_DATA(_Py_ZeroStruct)) &&
      dll.ResolveExport(DLL_OBJECT_DATA(PyString_Type)) &&
      dll.ResolveExport(DLL_OBJECT_DATA(PyList_Type)) &&
      dll.ResolveExport(DLL_OBJECT_DATA(PyLong_Type)) &&
      dll.ResolveExport(DLL_OBJECT_DATA(PyInt_Type)) &&
      dll.ResolveExport(DLL_OBJECT_DATA(PyUnicode_Type)) &&
      dll.ResolveExport(DLL_OBJECT_DATA(PyTuple_Type)) &&
      dll.ResolveExport(DLL_OBJECT_DATA(PyDict_Type)) &&
//.........这里部分代码省略.........