syscall.c revision 1.6 1 1.6 chs /* $NetBSD: syscall.c,v 1.6 2012/11/05 15:14:34 chs Exp $ */
2 1.2 cherry
3 1.2 cherry /*
4 1.2 cherry * Copyright (c) 2006 The NetBSD Foundation, Inc.
5 1.2 cherry * All rights reserved.
6 1.2 cherry *
7 1.2 cherry *
8 1.5 kiyohara * Author:
9 1.2 cherry *
10 1.2 cherry * Redistribution and use in source and binary forms, with or without
11 1.2 cherry * modification, are permitted provided that the following conditions
12 1.2 cherry * are met:
13 1.2 cherry * 1. Redistributions of source code must retain the above copyright
14 1.2 cherry * notice, this list of conditions and the following disclaimer.
15 1.2 cherry * 2. Redistributions in binary form must reproduce the above copyright
16 1.2 cherry * notice, this list of conditions and the following disclaimer in the
17 1.2 cherry * documentation and/or other materials provided with the distribution.
18 1.2 cherry *
19 1.2 cherry * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 1.2 cherry * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 1.2 cherry * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 1.2 cherry * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 1.2 cherry * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 1.2 cherry * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 1.2 cherry * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 1.2 cherry * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 1.2 cherry * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 1.2 cherry * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 1.2 cherry * POSSIBILITY OF SUCH DAMAGE.
30 1.2 cherry */
31 1.1 cherry
32 1.1 cherry
33 1.1 cherry #include <sys/cdefs.h> /* RCS ID & Copyright macro defns */
34 1.1 cherry
35 1.6 chs __KERNEL_RCSID(0, "$NetBSD: syscall.c,v 1.6 2012/11/05 15:14:34 chs Exp $");
36 1.1 cherry
37 1.1 cherry #include <sys/param.h>
38 1.1 cherry #include <sys/systm.h>
39 1.1 cherry #include <sys/proc.h>
40 1.1 cherry
41 1.1 cherry #include <machine/frame.h>
42 1.6 chs #include <machine/userret.h>
43 1.1 cherry
44 1.1 cherry void syscall_intern(struct proc *);
45 1.1 cherry void syscall_plain(struct lwp *, u_int64_t, struct trapframe *);
46 1.1 cherry void syscall_fancy(struct lwp *, u_int64_t, struct trapframe *);
47 1.1 cherry
48 1.1 cherry void
49 1.1 cherry syscall_intern(struct proc *p)
50 1.1 cherry {
51 1.5 kiyohara
52 1.5 kiyohara if (trace_is_enabled(p))
53 1.5 kiyohara p->p_md.md_syscall = syscall_fancy;
54 1.5 kiyohara else
55 1.5 kiyohara p->p_md.md_syscall = syscall_plain;
56 1.1 cherry }
57 1.1 cherry
58 1.1 cherry /*
59 1.1 cherry * Process a system call.
60 1.1 cherry */
61 1.1 cherry void
62 1.1 cherry syscall_plain(struct lwp *l, u_int64_t code, struct trapframe *framep)
63 1.1 cherry {
64 1.4 kiyohara printf("%s: not yet\n", __func__);
65 1.1 cherry return;
66 1.1 cherry }
67 1.1 cherry
68 1.1 cherry void
69 1.1 cherry syscall_fancy(struct lwp *l, u_int64_t code, struct trapframe *framep)
70 1.1 cherry {
71 1.4 kiyohara printf("%s: not yet\n", __func__);
72 1.1 cherry return;
73 1.1 cherry }
74 1.1 cherry
75 1.1 cherry /*
76 1.1 cherry * Process the tail end of a fork() for the child.
77 1.1 cherry */
78 1.1 cherry void
79 1.1 cherry child_return(void *arg)
80 1.1 cherry {
81 1.4 kiyohara printf("%s: not yet\n", __func__);
82 1.1 cherry return;
83 1.1 cherry }
84 1.6 chs
85 1.6 chs /*
86 1.6 chs * Process the tail end of a posix_spawn() for the child.
87 1.6 chs */
88 1.6 chs void
89 1.6 chs cpu_spawn_return(struct lwp *l)
90 1.6 chs {
91 1.6 chs
92 1.6 chs userret(l);
93 1.6 chs }
94