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Annotation of sys/arch/mvmeppc/stand/libsa/exec_mvme.c, Revision 1.1

1.1     ! nbrk        1: /*     $OpenBSD: exec_mvme.c,v 1.8 2004/01/29 21:30:04 miod Exp $      */
        !             2:
        !             3: /*-
        !             4:  * Copyright (c) 1982, 1986, 1990, 1993
        !             5:  *     The Regents of the University of California.  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:  * 2. Redistributions in binary form must reproduce the above copyright
        !            13:  *    notice, this list of conditions and the following disclaimer in the
        !            14:  *    documentation and/or other materials provided with the distribution.
        !            15:  * 3. Neither the name of the University nor the names of its contributors
        !            16:  *    may be used to endorse or promote products derived from this software
        !            17:  *    without specific prior written permission.
        !            18:  *
        !            19:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
        !            20:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            21:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            22:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
        !            23:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            24:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            25:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            26:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            27:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            28:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            29:  * SUCH DAMAGE.
        !            30:  *
        !            31:  *     @(#)boot.c      8.1 (Berkeley) 6/10/93
        !            32:  */
        !            33:
        !            34: #include <sys/param.h>
        !            35: #include <sys/reboot.h>
        !            36: #include <sys/exec_elf.h>
        !            37:
        !            38: #include <machine/prom.h>
        !            39:
        !            40: #include <lib/libkern/libkern.h>
        !            41: #include <lib/libsa/stand.h>
        !            42: #include <lib/libsa/loadfile.h>
        !            43:
        !            44: #include "libsa.h"
        !            45:
        !            46: /*ARGSUSED*/
        !            47: void
        !            48: exec_mvme(file, flag)
        !            49:        char    *file;
        !            50:        int     flag;
        !            51: {
        !            52:        int fd;
        !            53:        u_long marks[MARK_MAX];
        !            54:        void (*entry)();
        !            55:        u_long *entryp;
        !            56:        void *esym;
        !            57:        int bootdev;
        !            58:
        !            59: #ifdef DEBUG
        !            60:        printf("exec_mvme: file=%s flag=0x%x cputyp=%x\n", file, flag, bugargs.cputyp);
        !            61: #endif
        !            62:
        !            63:        fd = open(file, 0);
        !            64:        if (fd < 0)
        !            65:                return;
        !            66:
        !            67:        printf("Booting %s...", file);
        !            68:        marks[MARK_START] = 0;
        !            69:        if (loadfile(file, marks, LOAD_ALL) >= 0) {
        !            70:                close(fd);
        !            71:
        !            72:                entryp = (u_long *)&entry;
        !            73:                *entryp = marks[MARK_ENTRY];
        !            74:                esym = (void *)marks[MARK_END];
        !            75:
        !            76:                printf("Start @ 0x%x\n", (unsigned int)entry);
        !            77:                printf("Controller Address 0x%x\n", bugargs.ctrl_addr);
        !            78:                if (flag & RB_HALT)
        !            79:                        mvmeprom_return();
        !            80:
        !            81:                bootdev = (bugargs.ctrl_lun << 8) | (bugargs.dev_lun & 0xFF);
        !            82:                /*
        !            83:                 * Arguments to start on mvmeppc:
        !            84:                 * r1 - stack provided by firmware/bootloader
        !            85:                 * r3 - boot flags
        !            86:                 * r4 - boot device
        !            87:                 * r5 - firmware pointer (NULL for PPC1bug)
        !            88:                 * r6 - arg list
        !            89:                 * r7 - arg list length
        !            90:                 * r8 - end of symbol table
        !            91:                 */
        !            92:                /*       r3                 r4       r5    r6    r7 r8 */
        !            93:                (*entry)(flag, bootdev, NULL, NULL, 0, esym);
        !            94:
        !            95:                printf("exec: kernel returned!\n");
        !            96:        } else {
        !            97:                close(fd);
        !            98:        }
        !            99: }