STM32CubeMX version 6.4.0 generates code with missing REENT.H file

[Rajeev Arora]

Hello @Khouloud ZEMMELI​ 

STM32CubeMX version 6.4.0 generates code with missing REENT.H file when code is generated for MDK-ARM (minimum version V5.32)

compiling freertos.c...
../Middlewares/Third_Party/FreeRTOS/Source/include/FreeRTOS.h(71): error:  #5: cannot open source input file "reent.h": No such file or directory
  	#include <reent.h>
../Core/Src/freertos.c: 0 warnings, 1 error

Please help fix the issue.

Regards,

Rajeev

[Khouloud ZEMMELI]

Hello @Rajeev Arora​ ,

Thank you for your post,

Could you please share your ioc file to be able to check the problem?

Thanks, Khouloud

[Khouloud ZEMMELI]

Got it, thanks for the share 🙂

I'll check it then I'll get back to you.

Khouloud

[Khouloud ZEMMELI · Accepted solution]

Hi again @Rajeev Arora​ ,

Thank you for providing your ioc file, it helped me to reproduce the problem.

Actually, it's a normal behavior, in fact, when USE_NEWLIB_REENTRANT is enabled when using Keil or IAR toolchain, CubeMx project compilation will fail : "cannot open source file "reent.h".

For that, the USE_NEWLIB_REENTRANT parameter must be Disabled with EWARM OR MDK-ARM.

(There's a warning when you generate your project, mentioning the information)

Hope my answer helped you 🙂 

Khouloud

[JWang.29]

Dear @Khouloud ZEMMELI​ ,

I am having the exact same problem and I would appreciate any help on how to disable the USE_NEWLIB_REENTRANT parameter.

I am using MDK-ARM.

Thank you.

[JWang.29]

Actually I figured out where the setting is on CubeMX.

Thank you so much for your explanation up there.

Regards.

[JGile]

Thank you for your answers above. They really helped. Just to add further clarification on how to disable USE_NEWLIB_REENTRANT .

On Cube MX, Go to Pin out->FREERTOS_M7-Advanced Settings and set USE_NEWLIB_REENTRANT to Disabled

[Mahdi_lor]

Thank you for your advice, it really helped me🙏