67 	volatile u_int lock;  member
106 rlock_acquire(rtld_lock_t lock, RtldLockState *state)  in rlock_acquire()  argument
111 	v = lock->lock;  in rlock_acquire()
115 			if (atomic_fcmpset_int(&lock->lock, &v, v + RC_INCR)) {  in rlock_acquire()
120 			if (lock->owner == tid) {  in rlock_acquire()
121 				++lock->count;  in rlock_acquire()
125 			if (atomic_fcmpset_int(&lock->lock, &v, v | SLFLAG)) {  in rlock_acquire()
126 				umtx_sleep(&lock->lock, v, 0);  in rlock_acquire()
134 wlock_acquire(rtld_lock_t lock, RtldLockState *state)  in wlock_acquire()  argument
140 	if (lock->owner == tid) {  in wlock_acquire()
141 		++lock->count;  in wlock_acquire()
147 	v = lock->lock;  in wlock_acquire()
150 			if (atomic_fcmpset_int(&lock->lock, &v, WAFLAG))  in wlock_acquire()
153 			if (atomic_fcmpset_int(&lock->lock, &v, v | SLFLAG)) {  in wlock_acquire()
154 				umtx_sleep(&lock->lock, v, 0);  in wlock_acquire()
159 	lock->owner = tid;  in wlock_acquire()
160 	lock->count = 1;  in wlock_acquire()
161 	lock->savesigmask = tmp_oldsigmask;  in wlock_acquire()
166 lock_release(rtld_lock_t lock, RtldLockState *state)  in lock_release()  argument
173 	if ((lock->lock & WAFLAG) == 0) {  in lock_release()
174 		v = atomic_fetchadd_int(&lock->lock, -RC_INCR) - RC_INCR;  in lock_release()
176 			atomic_clear_int(&lock->lock, SLFLAG);  in lock_release()
177 			umtx_wakeup(&lock->lock, 0);  in lock_release()
179 	} else if (--lock->count == 0) {  in lock_release()
180 		tmp_oldsigmask = lock->savesigmask;  in lock_release()
181 		lock->owner = NULL;  in lock_release()
182 		v = atomic_fetchadd_int(&lock->lock, -WAFLAG) - WAFLAG;  in lock_release()
184 			atomic_clear_int(&lock->lock, SLFLAG);  in lock_release()
185 			umtx_wakeup(&lock->lock, 0);  in lock_release()
194 lock_reset(rtld_lock_t lock)  in lock_reset()  argument
196 	memset(lock, 0, sizeof(*lock));  in lock_reset()
200 lock_upgrade(rtld_lock_t lock, RtldLockState *state)  in lock_upgrade()  argument
205 		lock_release(lock, state);  in lock_upgrade()
206 		wlock_acquire(lock, state);  in lock_upgrade()