1 /*-
2  * Copyright (c) 2015 Nuxi, https://nuxi.nl/
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions
6  * are met:
7  * 1. Redistributions of source code must retain the above copyright
8  *    notice, this list of conditions and the following disclaimer.
9  * 2. Redistributions in binary form must reproduce the above copyright
10  *    notice, this list of conditions and the following disclaimer in the
11  *    documentation and/or other materials provided with the distribution.
12  *
13  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
14  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
16  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
17  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
19  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
20  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
21  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
23  * SUCH DAMAGE.
24  */
25 
26 #include <sys/cdefs.h>
27 __FBSDID("$FreeBSD$");
28 
29 #include <sys/param.h>
30 #include <sys/proc.h>
31 #include <sys/sched.h>
32 #include <sys/syscallsubr.h>
33 
34 #include <compat/cloudabi/cloudabi_proto.h>
35 #include <compat/cloudabi/cloudabi_syscalldefs.h>
36 
37 int
38 cloudabi_sys_thread_exit(struct thread *td,
39     struct cloudabi_sys_thread_exit_args *uap)
40 {
41 	struct cloudabi_sys_lock_unlock_args cloudabi_sys_lock_unlock_args = {
42 		.lock = uap->lock,
43 		.scope = uap->scope,
44 	};
45 
46         /* Wake up joining thread. */
47 	cloudabi_sys_lock_unlock(td, &cloudabi_sys_lock_unlock_args);
48 
49         /*
50 	 * Attempt to terminate the thread. Terminate the process if
51 	 * it's the last thread.
52 	 */
53 	kern_thr_exit(td);
54 	exit1(td, 0, 0);
55 	/* NOTREACHED */
56 }
57 
58 int
59 cloudabi_sys_thread_tcb_set(struct thread *td,
60     struct cloudabi_sys_thread_tcb_set_args *uap)
61 {
62 
63 	return (cpu_set_user_tls(td, uap->tcb));
64 }
65 
66 int
67 cloudabi_sys_thread_yield(struct thread *td,
68     struct cloudabi_sys_thread_yield_args *uap)
69 {
70 
71 	sched_relinquish(td);
72 	return (0);
73 }
74