On 09/11/2021 08:41, Chris Johns wrote:
We could also use something like this:
static inline struct timespec rtems_clock_get_realtime(void)
{
struct timespec time_snapshot;
_Timecounter_Nanotime( &time_snapshot );
return time_snapshot;
}
Unfortunately GCC is not able to optimize this.
Ah OK. This can be fixed and the performance improved but once the API is set it
cannot change or do you think we can add a check later and not break the API?
I filed a GCC bug for this:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103150
It seems I was not the only one noticing issues related to structure
returns:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101926
However, if we want a foolproof API, then I would prefer the structure
return over the return status and pointer argument. Compilers may get
better in the future. clang has similar issues, so this is not only a
GCC problem.
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