1/*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 1994 S��ren Schmidt 5 * Copyright (c) 1994 Sean Eric Fagan 6 * Copyright (c) 1995 Steven Wallace 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer 14 * in this position and unchanged. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. The name of the author may not be used to endorse or promote products 19 * derived from this software without specific prior written permission 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33#include <sys/cdefs.h> 34__FBSDID("$FreeBSD$"); 35 36#include <sys/param.h> 37#include <sys/lock.h> 38#include <sys/mutex.h> 39#include <sys/systm.h> 40#include <sys/sysent.h> 41#include <sys/proc.h> 42 43#include <machine/cpu.h> 44 45#include <i386/ibcs2/ibcs2_types.h> 46#include <i386/ibcs2/ibcs2_signal.h> 47#include <i386/ibcs2/ibcs2_proto.h> 48#include <i386/ibcs2/ibcs2_isc_syscall.h> 49 50extern struct sysent isc_sysent[]; 51 52int 53ibcs2_isc(struct thread *td, struct ibcs2_isc_args *uap) 54{ 55 struct trapframe *tf = td->td_frame; 56 struct sysent *callp; 57 u_int code; 58 int error; 59 60 code = (tf->tf_eax & 0xffffff00) >> 8; 61 callp = &isc_sysent[code]; 62 63 if (code < IBCS2_ISC_MAXSYSCALL) 64 error = (*callp->sy_call)(td, (void *)uap); 65 else 66 error = ENOSYS; 67 return (error); 68} 69