if DataType.TAB_TOD_DEFINES_FAMILY in ToolDefinition \
                   and GenFdsGlobalVariable.ToolChainTag in ToolDefinition[DataType.TAB_TOD_DEFINES_FAMILY] \
                   and ToolDefinition[DataType.TAB_TOD_DEFINES_FAMILY][GenFdsGlobalVariable.ToolChainTag]:
                    GenFdsGlobalVariable.ToolChainFamily = ToolDefinition[DataType.TAB_TOD_DEFINES_FAMILY][GenFdsGlobalVariable.ToolChainTag]