_pthread_barrier_init fails a count above INT_MAX with EINVAL.
pthread_barrier_init accepted any count above zero.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
On a PS5 (firmware 12.70), of the values 0, 1, 2 and -1,
pthread_spin_init, pthread_barrierattr_setpshared and
pthread_mutexattr_setpshared accept only PTHREAD_PROCESS_PRIVATE (0);
1, 2 and -1 return EINVAL and leave the attribute unchanged.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The PS5 kernel follows FreeBSD 11, whose libthr accepts process-shared
barriers. Guest code runs in a single process, so a process-shared
barrier synchronises the same threads a private one does; the attribute
is stored and reported back by getpshared.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
pthread_barrier_init threw for any non-null attributes object, and no
function could create one. Add pthread_barrierattr_init, _destroy,
_getpshared and _setpshared after FreeBSD libthr, and let
pthread_barrier_init take the object.
PTHREAD_PROCESS_SHARED still throws in pthread_barrierattr_setpshared:
FreeBSD 9.0 rejects it and 11.0 accepts it.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
