[PATCH 14/14] Add --enable-newlib-reent-thread-local option

[Sebastian Huber]

Hello Torbjorn,

On 21/06/2022 15:59, Torbjorn SVENSSON wrote:
> Just out of curiosity, how will this impact RTOSes like FreeRTOS?

the new option is disabled by default. So, there will be no impact on 
existing systems (unless we made a mistake in the patch set).

> Currently, FreeRTOS updates the impure_ptr to point to an instance of struct _reent that belongs to that particular task when the scheduler is switching task.
> 
> Seehttps://www.freertos.org/a00110.html#configUSE_NEWLIB_REENTRANT  andhttps://github.com/FreeRTOS/FreeRTOS-Kernel/blob/main/tasks.c#L2047  for details.

This will work as before. Using the new option for FreeRTOS could help 
to reduce the minimum storage foot print.

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