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Annotation of sys/arch/alpha/stand/boot/boot.c, Revision 1.1.1.1

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: }