Re: Building newlib with clock_gettime()

On Sun, Jan 12, 2025, 6:26 PM Keith Thompson <[email protected]>
wrote:

> > Newlib does not provide an implementation for clock_gettime().
>
> I see an implementation of clock_gettime() in the newlib sources:
>
>
> https://sourceware.org/git/?p=newlib-cygwin.git;a=blob;f=winsup/cygwin/times.cc;h=a89980d08f9b9bf6755de833666f8b204cabbcd8;hb=HEAD#l459
>
> And I'm able to use clock_gettime() on Cygwin.
>

That implementation is in a Cygwin specific directory and is specific to
Cygwin. Other environments that have support for it include it in their own
source. The one for RTEMS is here:

https://gitlab.rtems.org/rtems/rtos/rtems/-/blame/main/cpukit/posix/src/clockgettime.c?ref_type=heads#L51


> Am I missing something?
>

You need to have an implementation specific to your environment.

--joel

>