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Annotation of sys/arch/alpha/stand/boot/boot.c, Revision 1.1

1.1     ! nbrk        1: /*     $OpenBSD: boot.c,v 1.19 2005/05/30 01:41:33 deraadt Exp $       */
        !             2: /*     $NetBSD: boot.c,v 1.10 1997/01/18 01:58:33 cgd Exp $    */
        !             3:
        !             4: /*
        !             5:  * Copyright (c) 1992, 1993
        !             6:  *     The Regents of the University of California.  All rights reserved.
        !             7:  *
        !             8:  * This code is derived from software contributed to Berkeley by
        !             9:  * Ralph Campbell.
        !            10:  *
        !            11:  * Redistribution and use in source and binary forms, with or without
        !            12:  * modification, are permitted provided that the following conditions
        !            13:  * are met:
        !            14:  * 1. Redistributions of source code must retain the above copyright
        !            15:  *    notice, this list of conditions and the following disclaimer.
        !            16:  * 2. Redistributions in binary form must reproduce the above copyright
        !            17:  *    notice, this list of conditions and the following disclaimer in the
        !            18:  *    documentation and/or other materials provided with the distribution.
        !            19:  * 3. Neither the name of the University nor the names of its contributors
        !            20:  *    may be used to endorse or promote products derived from this software
        !            21:  *    without specific prior written permission.
        !            22:  *
        !            23:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
        !            24:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            25:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            26:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
        !            27:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            28:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            29:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            30:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            31:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            32:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            33:  * SUCH DAMAGE.
        !            34:  *
        !            35:  *     @(#)boot.c      8.1 (Berkeley) 6/10/93
        !            36:  */
        !            37:
        !            38: #include <lib/libkern/libkern.h>
        !            39: #include <lib/libsa/stand.h>
        !            40:
        !            41: #include <sys/param.h>
        !            42: #include <sys/exec.h>
        !            43: #include <sys/exec_ecoff.h>
        !            44:
        !            45: #include <machine/rpb.h>
        !            46: #include <machine/prom.h>
        !            47: #include <machine/autoconf.h>
        !            48:
        !            49: #define _KERNEL
        !            50: #include "include/pte.h"
        !            51:
        !            52: int loadfile(char *, u_int64_t *);
        !            53:
        !            54: char boot_file[128];
        !            55: char boot_flags[128];
        !            56:
        !            57: extern char bootprog_name[];
        !            58:
        !            59: struct bootinfo_v1 bootinfo_v1;
        !            60:
        !            61: extern paddr_t ffp_save, ptbr_save;
        !            62:
        !            63: extern vaddr_t ssym, esym;
        !            64:
        !            65: int debug;
        !            66:
        !            67: int
        !            68: main()
        !            69: {
        !            70:        char *name, **namep;
        !            71:        u_int64_t entry;
        !            72:        int win;
        !            73:
        !            74:        /* Init prom callback vector. */
        !            75:        init_prom_calls();
        !            76:
        !            77:        /* print a banner */
        !            78:        printf("%s\n", bootprog_name);
        !            79:
        !            80:        /* switch to OSF pal code. */
        !            81:        OSFpal();
        !            82:
        !            83:        prom_getenv(PROM_E_BOOTED_FILE, boot_file, sizeof(boot_file));
        !            84:        prom_getenv(PROM_E_BOOTED_OSFLAGS, boot_flags, sizeof(boot_flags));
        !            85:
        !            86:        if (boot_file[0] != '\0') {
        !            87:                (void)printf("Boot file: %s %s\n", boot_file, boot_flags);
        !            88:                name = boot_file;
        !            89:        } else
        !            90:                name = "bsd";
        !            91:        win = (loadfile(name, &entry) == 0);
        !            92:        if (!win)
        !            93:                goto fail;
        !            94:
        !            95:        /*
        !            96:         * Fill in the bootinfo for the kernel.
        !            97:         */
        !            98:        bzero(&bootinfo_v1, sizeof(bootinfo_v1));
        !            99:        bootinfo_v1.ssym = ssym;
        !           100:        bootinfo_v1.esym = esym;
        !           101:        bcopy(name, bootinfo_v1.booted_kernel,
        !           102:            sizeof(bootinfo_v1.booted_kernel));
        !           103:        bcopy(boot_flags, bootinfo_v1.boot_flags,
        !           104:            sizeof(bootinfo_v1.boot_flags));
        !           105:        bootinfo_v1.hwrpb = (void *)HWRPB_ADDR;
        !           106:        bootinfo_v1.hwrpbsize = ((struct rpb *)HWRPB_ADDR)->rpb_size;
        !           107:        bootinfo_v1.cngetc = NULL;
        !           108:        bootinfo_v1.cnputc = NULL;
        !           109:        bootinfo_v1.cnpollc = NULL;
        !           110:
        !           111:        (*(void (*)(u_int64_t, u_int64_t, u_int64_t, void *, u_int64_t,
        !           112:            u_int64_t))entry)(ffp_save, ptbr_save, BOOTINFO_MAGIC,
        !           113:            &bootinfo_v1, 1, 0);
        !           114:
        !           115: fail:
        !           116:        halt();
        !           117: }