sys/kern/subr_trap.c

96 userret(struct thread *td, struct trapframe *frame)
98 	struct proc *p = td->td_proc;
100 	CTR3(KTR_SYSC, "userret: thread %p (pid %d, %s)", td, p->p_pid,
101             td->td_name);
116 		thread_lock(td);
118 			KASSERT(!SIGPENDING(td) || (td->td_flags &
122 			    "td %p fl %x", p, td, td->td_flags));
124 		thread_unlock(td);
129 	KTRUSERRET(td);
138 	if (td->td_pflags & TDP_GEOM)
145 		addupc_task(td, TRAPF_PC(frame), td->td_pticks * psratio);
149 	sched_userret(td);
160 	KASSERT(td->td_critnest == 0,
162 	KASSERT(td->td_locks == 0,
163 	    ("userret: Returning with %d locks held", td->td_locks));
164 	KASSERT(td->td_rw_rlocks == 0,
166 	    td->td_rw_rlocks));
167 	KASSERT((td->td_pflags & TDP_NOFAULTING) == 0,
169 	KASSERT(td->td_no_sleeping == 0,
171 	KASSERT(td->td_pinned == 0 || (td->td_pflags & TDP_CALLCHAIN) != 0,
173 	KASSERT(td->td_vp_reserv == 0,
175 	KASSERT((td->td_flags & (TDF_SBDRY | TDF_SEINTR | TDF_SERESTART)) == 0,
177 	KASSERT(td->td_su == NULL,
182 	    ("%s: Returning on td %p (pid %d, %s) with vnet %p set in %s",
183 	    __func__, td, p->p_pid, td->td_name, curvnet,
184 	    (td->td_vnet_lpush != NULL) ? td->td_vnet_lpush : "N/A"));
208 	struct thread *td;
213 	td = curthread;
214 	p = td->td_proc;
216 	CTR3(KTR_SYSC, "ast: thread %p (pid %d, %s)", td, p->p_pid,
221 	THREAD_LOCK_ASSERT(td, MA_NOTOWNED);
222 	td->td_frame = framep;
223 	td->td_pticks = 0;
232 	thread_lock(td);
233 	flags = td->td_flags;
234 	td->td_flags &= ~(TDF_ASTPENDING | TDF_NEEDSIGCHK | TDF_NEEDSUSPCHK |
236 	thread_unlock(td);
239 	if (td->td_cowgen != p->p_cowgen)
240 		thread_cow_update(td);
241 	if (td->td_pflags & TDP_OWEUPC && p->p_flag & P_PROFIL) {
242 		addupc_task(td, td->td_profil_addr, td->td_profil_ticks);
243 		td->td_profil_ticks = 0;
244 		td->td_pflags &= ~TDP_OWEUPC;
248 	if (PMC_IS_PENDING_CALLCHAIN(td))
249 		PMC_CALL_HOOK_UNLOCKED(td, PMC_FN_USER_CALLCHAIN_SOFT, (void *) framep);
263 		mac_thread_userret(td);
267 		if (KTRPOINT(td, KTR_CSW))
270 		thread_lock(td);
271 		sched_prio(td, td->td_user_pri);
273 		thread_unlock(td);
275 		if (KTRPOINT(td, KTR_CSW))
283 		thread_lock(td);
292 			KASSERT(!SIGPENDING(td) || (td->td_flags &
295 			    ("failed2 to set signal flags for ast p %p td %p "
296 			    "fl %x %x", p, td, flags, td->td_flags));
298 		thread_unlock(td);
312 		while ((sig = cursig(td)) != 0)
327 	if (td->td_pflags & TDP_OLDMASK) {
328 		td->td_pflags &= ~TDP_OLDMASK;
329 		kern_sigprocmask(td, SIG_SETMASK, &td->td_oldsigmask, NULL, 0);
332 	userret(td, framep);