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Annotation of sys/compat/common/kern_exit_43.c, Revision 1.1

1.1     ! nbrk        1: /*     $OpenBSD: kern_exit_43.c,v 1.7 2003/06/02 23:27:59 millert Exp $        */
        !             2: /*     $NetBSD: kern_exit_43.c,v 1.3 1995/10/07 06:26:20 mycroft Exp $ */
        !             3:
        !             4: /*
        !             5:  * Copyright (c) 1982, 1986, 1989, 1991, 1993
        !             6:  *     The Regents of the University of California.  All rights reserved.
        !             7:  * (c) UNIX System Laboratories, Inc.
        !             8:  * All or some portions of this file are derived from material licensed
        !             9:  * to the University of California by American Telephone and Telegraph
        !            10:  * Co. or Unix System Laboratories, Inc. and are reproduced herein with
        !            11:  * the permission of UNIX System Laboratories, Inc.
        !            12:  *
        !            13:  * Redistribution and use in source and binary forms, with or without
        !            14:  * modification, are permitted provided that the following conditions
        !            15:  * are met:
        !            16:  * 1. Redistributions of source code must retain the above copyright
        !            17:  *    notice, this list of conditions and the following disclaimer.
        !            18:  * 2. Redistributions in binary form must reproduce the above copyright
        !            19:  *    notice, this list of conditions and the following disclaimer in the
        !            20:  *    documentation and/or other materials provided with the distribution.
        !            21:  * 3. Neither the name of the University nor the names of its contributors
        !            22:  *    may be used to endorse or promote products derived from this software
        !            23:  *    without specific prior written permission.
        !            24:  *
        !            25:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
        !            26:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            27:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            28:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
        !            29:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            30:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            31:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            32:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            33:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            34:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            35:  * SUCH DAMAGE.
        !            36:  *
        !            37:  *     @(#)kern_exit.c 8.7 (Berkeley) 2/12/94
        !            38:  */
        !            39:
        !            40: #include <sys/param.h>
        !            41: #include <sys/systm.h>
        !            42: #include <sys/ioctl.h>
        !            43: #include <sys/proc.h>
        !            44: #include <sys/tty.h>
        !            45: #include <sys/time.h>
        !            46: #include <sys/resource.h>
        !            47: #include <sys/kernel.h>
        !            48: #include <sys/proc.h>
        !            49: #include <sys/buf.h>
        !            50: #include <sys/wait.h>
        !            51: #include <sys/file.h>
        !            52: #include <sys/vnode.h>
        !            53: #include <sys/syslog.h>
        !            54: #include <sys/malloc.h>
        !            55: #include <sys/resourcevar.h>
        !            56: #include <sys/ptrace.h>
        !            57: #include <sys/acct.h>
        !            58:
        !            59: #include <sys/mount.h>
        !            60: #include <sys/syscallargs.h>
        !            61:
        !            62: #include <machine/cpu.h>
        !            63: #include <machine/reg.h>
        !            64: #include <compat/common/compat_util.h>
        !            65:
        !            66: #include <uvm/uvm_extern.h>
        !            67: #ifdef m68k
        !            68: #include <machine/frame.h>
        !            69: #include <machine/psl.h>
        !            70: #define GETPS(rp)      ((struct frame *)(rp))->f_sr
        !            71: #else
        !            72: #define GETPS(rp)      (rp)[PS]
        !            73: #endif
        !            74:
        !            75: int
        !            76: compat_43_sys_wait(p, v, retval)
        !            77:        struct proc *p;
        !            78:        void *v;
        !            79:        register_t *retval;
        !            80: {
        !            81:        caddr_t sg = stackgap_init(p->p_emul);
        !            82:        int error;
        !            83:
        !            84:        struct sys_wait4_args /* {
        !            85:                syscallarg(int) pid;
        !            86:                syscallarg(int *) status;
        !            87:                syscallarg(int) options;
        !            88:                syscallarg(struct rusage *) rusage;
        !            89:        } */ a;
        !            90:
        !            91: #ifdef m68k
        !            92:        if ((GETPS(p->p_md.md_regs) & PSL_ALLCC) != PSL_ALLCC) {
        !            93:                SCARG(&a, options) = 0;
        !            94:                SCARG(&a, rusage) = NULL;
        !            95:        } else {
        !            96:                SCARG(&a, options) = p->p_md.md_regs[R0];
        !            97:                SCARG(&a, rusage) = (struct rusage *)p->p_md.md_regs[R1];
        !            98:        }
        !            99: #else
        !           100:        SCARG(&a, options) = 0;
        !           101:        SCARG(&a, rusage) = NULL;
        !           102: #endif
        !           103:        SCARG(&a, pid) = WAIT_ANY;
        !           104:        SCARG(&a, status) = stackgap_alloc(&sg, sizeof(SCARG(&a, status)));
        !           105:        if ((error = sys_wait4(p, &a, retval)) != 0)
        !           106:                return error;
        !           107:        return copyin(SCARG(&a, status), &retval[1], sizeof(retval[1]));
        !           108: }