`clock()` is non-functional on Managarm; uses unimplemented CLOCK_PROCESS_CPUTIME_ID

[johnsonjh]

mlibc/options/ansi/generic/time.cpp

Lines 37 to 48 in 4cd4b63

	// Function taken from musl
	clock_t clock(void) {
	struct timespec ts;
	if(clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &ts))
	return -1;
	if(ts.tv_sec > LONG_MAX / 1000000 || ts.tv_nsec / 1000 > LONG_MAX - 1000000 * ts.tv_sec)
	return -1;
	return ts.tv_sec * 1000000 + ts.tv_nsec / 1000;
	}

[johnsonjh]

Might be more properly a Managarm kernel feature request, but probably could be #if !defined(CLOCK_PROCESS_CPUTIME_ID) with an alternate implementation.