FPU related build error on MT3620 RT Core FreeRTOS example #3
Description
When I build an FreeRTOS example on github(https://github.com/MicrosoftDocs/Azure-Sphere-Developer-Learning-Path/tree/master/Lab_5_FreeRTOS_Environment) There is an build error as below. and it seems that it's related to the FreeRTOS/portable/port.c
[build] [51/56 85% :: 1.743] C:\PROGRA~2\ARMGNU~1\12DBAB~1.2RE\bin\AR19DD~1.EXE -DOSAI_ENABLE_DMA -DOSAI_FREERTOS -IC:/lab1/Azure-Sphere/Lab_5_FreeRTOS_Environment/FreeRTOS_RTcore_GPIO -IC:/lab1/Azure-Sphere/Lab_5_FreeRTOS_Environment/PUBLIC -IC:/lab1/Azure-Sphere/Lab_5_FreeRTOS_Environment/. -IC:/lab1/Azure-Sphere/Lab_5_FreeRTOS_Environment/MT3620_M4_BSP/FreeRTOS/./portable -IC:/lab1/Azure-Sphere/Lab_5_FreeRTOS_Environment/MT3620_M4_BSP/FreeRTOS/./include -isystem "C:/Program Files (x86)/Arm GNU Toolchain arm-none-eabi/12.2 rel1/lib/gcc/arm-none-eabi/12.2.1/include" -isystem "C:/Program Files (x86)/Arm GNU Toolchain arm-none-eabi/12.2 rel1/arm-none-eabi/include" -mcpu=cortex-m4 -g -std=c11 -Wall -g2 -gdwarf-2 -O0 -MD -MT lib/MT3620_M4_Driver/MT3620_M4_BSP/FreeRTOS/CMakeFiles/MT3620_M4_FreeRTOS.dir/portable/port.c.obj -MF lib\MT3620_M4_Driver\MT3620_M4_BSP\FreeRTOS\CMakeFiles\MT3620_M4_FreeRTOS.dir\portable\port.c.obj.d -o lib/MT3620_M4_Driver/MT3620_M4_BSP/FreeRTOS/CMakeFiles/MT3620_M4_FreeRTOS.dir/portable/port.c.obj -c C:/lab1/Azure-Sphere/Lab_5_FreeRTOS_Environment/MT3620_M4_BSP/FreeRTOS/portable/port.c [build] FAILED: lib/MT3620_M4_Driver/MT3620_M4_BSP/FreeRTOS/CMakeFiles/MT3620_M4_FreeRTOS.dir/portable/port.c.obj [build] C:\PROGRA~2\ARMGNU~1\12DBAB~1.2RE\bin\AR19DD~1.EXE -DOSAI_ENABLE_DMA -DOSAI_FREERTOS -IC:/lab1/Azure-Sphere/Lab_5_FreeRTOS_Environment/FreeRTOS_RTcore_GPIO -IC:/lab1/Azure-Sphere/Lab_5_FreeRTOS_Environment/PUBLIC -IC:/lab1/Azure-Sphere/Lab_5_FreeRTOS_Environment/. -IC:/lab1/Azure-Sphere/Lab_5_FreeRTOS_Environment/MT3620_M4_BSP/FreeRTOS/./portable -IC:/lab1/Azure-Sphere/Lab_5_FreeRTOS_Environment/MT3620_M4_BSP/FreeRTOS/./include -isystem "C:/Program Files (x86)/Arm GNU Toolchain arm-none-eabi/12.2 rel1/lib/gcc/arm-none-eabi/12.2.1/include" -isystem "C:/Program Files (x86)/Arm GNU Toolchain arm-none-eabi/12.2 rel1/arm-none-eabi/include" -mcpu=cortex-m4 -g -std=c11 -Wall -g2 -gdwarf-2 -O0 -MD -MT lib/MT3620_M4_Driver/MT3620_M4_BSP/FreeRTOS/CMakeFiles/MT3620_M4_FreeRTOS.dir/portable/port.c.obj -MF lib\MT3620_M4_Driver\MT3620_M4_BSP\FreeRTOS\CMakeFiles\MT3620_M4_FreeRTOS.dir\portable\port.c.obj.d -o lib/MT3620_M4_Driver/MT3620_M4_BSP/FreeRTOS/CMakeFiles/MT3620_M4_FreeRTOS.dir/portable/port.c.obj -c C:/lab1/Azure-Sphere/Lab_5_FreeRTOS_Environment/MT3620_M4_BSP/FreeRTOS/portable/port.c [build] C:\Users\ivan\AppData\Local\Temp\ccC16s9b.s: Assembler messages: [build] C:\Users\ivan\AppData\Local\Temp\ccC16s9b.s:857: Error: selected FPU does not support instruction -- vstmdbeq r0!,{s16-s31}'
[build] C:\Users\ivan\AppData\Local\Temp\ccC16s9b.s:879: Error: selected FPU does not support instruction -- vldmiaeq r0!,{s16-s31}'
How can I fix this build error?
Thanks.