1 /*-
2 * Copyright (c) 1994 Søren Schmidt
3 * Copyright (c) 1994 Sean Eric Fagan
4 * Copyright (c) 1995 Steven Wallace
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer
12 * in this position and unchanged.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. The name of the author may not be used to endorse or promote products
17 * derived from this software without specific prior written permission
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31 #include <sys/cdefs.h>
32 __FBSDID("$FreeBSD: releng/10.1/sys/i386/ibcs2/ibcs2_isc.c 230132 2012-01-15 13:23:18Z uqs $");
33
34 #include <sys/param.h>
35 #include <sys/lock.h>
36 #include <sys/mutex.h>
37 #include <sys/systm.h>
38 #include <sys/sysent.h>
39 #include <sys/proc.h>
40
41 #include <machine/cpu.h>
42
43 #include <i386/ibcs2/ibcs2_types.h>
44 #include <i386/ibcs2/ibcs2_signal.h>
45 #include <i386/ibcs2/ibcs2_proto.h>
46 #include <i386/ibcs2/ibcs2_isc_syscall.h>
47
48 extern struct sysent isc_sysent[];
49
50 int
51 ibcs2_isc(struct thread *td, struct ibcs2_isc_args *uap)
52 {
53 struct trapframe *tf = td->td_frame;
54 struct sysent *callp;
55 u_int code;
56 int error;
57
58 code = (tf->tf_eax & 0xffffff00) >> 8;
59 callp = &isc_sysent[code];
60
61 if (code < IBCS2_ISC_MAXSYSCALL)
62 error = (*callp->sy_call)(td, (void *)uap);
63 else
64 error = ENOSYS;
65 return (error);
66 }
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