Platformio+CubeMX+RTThreadNano应该怎么正确配置编译环境？

基本按照这篇blog来配置环境的。但是在platformio build的时候出现如下错误，似乎是汇编器无法识别RT-Thread库里的汇编语句。请问大家知道应该怎么正确配置编译环境吗？

板子是野火的STM32F103VE指南者。platformio.ini内容如下：
[platformio]
include_dir = ./Inc
src_dir = ./
[env:genericSTM32F103VE]
platform = ststm32
board = genericSTM32F103VE
; framework = stm32cube
debug_tool = cmsis-dap
upload_protocol = cmsis-dap
monitor_speed = 115200
build_flags =
    -DUSE_HAL_DRIVER
    -DSTM32F103xE
    -IInc
    -IDrivers/STM32F1xx_HAL_Driver/Inc
    -IDrivers/STM32F1xx_HAL_Driver/Inc/Legacy
    -IDrivers/CMSIS/Device/ST/STM32F1xx/Include
    -IDrivers/CMSIS/Include
    -IMiddlewares/Third_Party/RealThread_RTOS/include/
    -IMiddlewares/Third_Party/RealThread_RTOS/bsp/_template/cubemx_config
    -IMiddlewares/Third_Party/RealThread_RTOS/finsh/
    -IMiddlewares/Third_Party/RealThread_RTOS/components/finsh
src_filter = +<./Src/> +<./startup_stm32f103xe.s> +<./Drivers/> +<./Middlewares/>
board_build.ldscript = ./STM32F103VETx_FLASH.ld
extra_scripts = pre:add_newlibnano.py