Return to kgdb_machdep.c CVS log

Up to [local] / sys / arch / hp300 / hp300

Annotation of sys/arch/hp300/hp300/kgdb_machdep.c, Revision 1.1

1.1     ! nbrk        1: /*     $OpenBSD: kgdb_machdep.c,v 1.4 2005/11/13 17:50:44 fgsch Exp $  */
        !             2: /*     $NetBSD: kgdb_machdep.c,v 1.1 1997/05/05 20:51:05 thorpej Exp $ */
        !             3:
        !             4: /*
        !             5:  * Copyright (c) 1990, 1993
        !             6:  *     The Regents of the University of California.  All rights reserved.
        !             7:  *
        !             8:  * This software was developed by the Computer Systems Engineering group
        !             9:  * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
        !            10:  * contributed to Berkeley.
        !            11:  *
        !            12:  * All advertising materials mentioning features or use of this software
        !            13:  * must display the following acknowledgement:
        !            14:  *     This product includes software developed by the University of
        !            15:  *     California, Lawrence Berkeley Laboratories.
        !            16:  *
        !            17:  * Redistribution and use in source and binary forms, with or without
        !            18:  * modification, are permitted provided that the following conditions
        !            19:  * are met:
        !            20:  * 1. Redistributions of source code must retain the above copyright
        !            21:  *    notice, this list of conditions and the following disclaimer.
        !            22:  * 2. Redistributions in binary form must reproduce the above copyright
        !            23:  *    notice, this list of conditions and the following disclaimer in the
        !            24:  *    documentation and/or other materials provided with the distribution.
        !            25:  * 3. Neither the name of the University nor the names of its contributors
        !            26:  *    may be used to endorse or promote products derived from this software
        !            27:  *    without specific prior written permission.
        !            28:  *
        !            29:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
        !            30:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            31:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            32:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
        !            33:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            34:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            35:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            36:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            37:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            38:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            39:  * SUCH DAMAGE.
        !            40:  *
        !            41:  *     @(#)kgdb_stub.c 8.4 (Berkeley) 1/12/94
        !            42:  */
        !            43:
        !            44: /*
        !            45:  * Machine-dependent part of the KGDB remote "stub"
        !            46:  */
        !            47:
        !            48: #include <sys/param.h>
        !            49: #include <sys/systm.h>
        !            50: #include <sys/kgdb.h>
        !            51:
        !            52: #include <machine/db_machdep.h>
        !            53: #include <machine/pte.h>
        !            54:
        !            55: /*
        !            56:  * Determine if the memory at va..(va+len) is valid.
        !            57:  */
        !            58: int
        !            59: kgdb_acc(va, ulen)
        !            60:        vaddr_t va;
        !            61:        size_t ulen;
        !            62: {
        !            63:        int len, pgoff;
        !            64:        pt_entry_t *pte;
        !            65:
        !            66:        len = (int)ulen;
        !            67:        pgoff = va & PGOFSET;
        !            68:        va  -= pgoff;
        !            69:        len += pgoff;
        !            70:
        !            71:        while (len > 0) {
        !            72:                pte = kvtopte(va);
        !            73:                if ((*pte & PG_V) == 0)
        !            74:                        return (0);
        !            75:                va  += NBPG;
        !            76:                len -= NBPG;
        !            77:        }
        !            78:
        !            79:        return (1);
        !            80: }