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libc: output warning if RTC is not present

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This commit is contained in:
Johannes Schlatow 2022-07-15 11:09:45 +02:00 committed by Christian Helmuth
parent 01d7c07920
commit 7d2f019681
1 changed files with 3 additions and 1 deletions

4
repos/libports/src/lib/libc/time.cc

@ -78,8 +78,10 @@ int clock_gettime(clockid_t clk_id, struct timespec *ts)
if (!_current_real_time_ptr)
throw Missing_call_of_init_time();
if (!_current_real_time_ptr->has_real_time())
if (!_current_real_time_ptr->has_real_time()) {
warning("clock_gettime(): missing real-time clock");
return Errno(EINVAL);
}
*ts = _current_real_time_ptr->current_real_time();
break;