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Annotation of src/sys/arch/amiga/stand/bootblock/bootxx_ffs/main.c, Revision 1.5.2.1

1.1       mhitch      1: /*
1.5.2.1 ! yamt        2:  * $NetBSD: main.c,v 1.5 2005/12/11 12:16:36 christos Exp $
1.1       mhitch      3:  *
                      4:  *
                      5:  * Copyright (c) 1996,1999 Ignatios Souvatzis
                      6:  * Copyright (c) 1994 Michael L. Hitch
                      7:  * All rights reserved.
                      8:  *
                      9:  * Redistribution and use in source and binary forms, with or without
                     10:  * modification, are permitted provided that the following conditions
                     11:  * are met:
                     12:  * 1. Redistributions of source code must retain the above copyright
                     13:  *    notice, this list of conditions and the following disclaimer.
                     14:  * 2. Redistributions in binary form must reproduce the above copyright
                     15:  *    notice, this list of conditions and the following disclaimer in the
                     16:  *    documentation and/or other materials provided with the distribution.
                     17:  * 3. All advertising materials mentioning features or use of this software
                     18:  *    must display the following acknowledgement:
                     19:  *      This product includes software developed by Michael L. Hitch.
                     20:  * 4. The name of the authors may not be used to endorse or promote products
                     21:  *    derived from this software without specific prior written permission
                     22:  *
                     23:  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
                     24:  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
                     25:  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
                     26:  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
                     27:  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
                     28:  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
                     29:  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
                     30:  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
                     31:  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
                     32:  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
                     33:  *
                     34:  */
                     35:
                     36: #include <sys/cdefs.h>
                     37: #include <sys/reboot.h>
                     38: #include <sys/types.h>
                     39:
                     40: #include <sys/exec_aout.h>
                     41:
                     42: #include <amiga/cfdev.h>
                     43: #include <amiga/memlist.h>
                     44: #include <include/cpu.h>
                     45:
                     46: #include <saerrno.h>
1.4       junyoung   47: #include <lib/libsa/stand.h>
1.1       mhitch     48:
                     49: #include "libstubs.h"
                     50: #include "samachdep.h"
                     51:
1.3       thorpej    52: #undef AOUT_LDPGSZ
                     53: #define AOUT_LDPGSZ 8192
1.1       mhitch     54: #define __PGSZ 8192
                     55:
                     56: #define DRACOREVISION  (*(u_int8_t *)0x02000009)
                     57: #define DRACOMMUMARGIN 0x200000
                     58: #define DRACOZ2OFFSET  0x3000000
                     59: #define DRACOZ2MAX     0x1000000
                     60:
                     61: #define EXECMIN 36
                     62:
                     63: /*
                     64:  * vers.c (generated by newvers.sh)
                     65:  */
                     66: extern const char bootprog_rev[];
                     67:
1.2       aymeric    68: void startit(void *, void *, void *);
1.1       mhitch     69:
                     70: int consclose(void);
                     71:
                     72: extern void *ConsoleBase;
                     73:
                     74: int
1.2       aymeric    75: pain(void *aio)
1.1       mhitch     76: {
                     77:        long int io = 0;
                     78:        caddr_t kp;
                     79:        int ksize;
                     80:        struct stat sb;
                     81:
                     82:        extern u_int16_t timelimit;
                     83:
                     84:        xdinit(aio);
                     85:
                     86:        if (consinit(NULL))             /* Initialize fresh console */
                     87:                return(1);
                     88:
                     89: #ifdef PPCBOOTER
                     90:        printf("NetBSD/AmigaPPC " NETBSD_VERS " Primary Bootstrap %s\n", bootprog_rev);
                     91: #else
                     92:        printf("NetBSD/Amiga " NETBSD_VERS " Primary Bootstrap %s\n", bootprog_rev);
                     93: #endif
                     94:        io = open("/boot.amiga", 0);    /* Try /boot.amiga first */
                     95:        if (io < 0) {
                     96:                io = open("/boot", 0);  /* Fallback to /boot */
                     97:                if (io < 0) {
                     98:                        io = open("/boot.ami", 0);      /* 8.3 name? */
                     99:                        if (io < 0) {
                    100:                                goto err;
                    101:                        }
                    102:                }
                    103:        }
                    104:
                    105:        /* get size of file? */
                    106:        if (fstat(io, &sb))
                    107:                goto err;
                    108:        /* allocate memory for file */
                    109:        ksize = sb.st_size;
                    110:        if (ksize == 0) {
                    111:                printf("Bad size, using 32K\n");        /* XXX debug? */
                    112:                ksize = 32 * 1024;
                    113:        }
                    114:        kp = alloc(ksize);
                    115:        if (kp == 0) {
                    116:                errno = ENOMEM;
                    117:                goto err;
                    118:        }
                    119:        /* read file into memory */
                    120:        if (read(io, kp, ksize) != ksize) {
                    121:                errno = ENOEXEC;
                    122:                goto freeall;
                    123:        }
                    124:        /* validate boot: DOS\0 and checksum? */
                    125:        if (strcmp(kp, "DOS") != 0 &&
                    126:            (*(u_int32_t *)kp) != 0x424f4f54) {
                    127:                errno = ENOEXEC;
                    128:                goto freeall;
                    129:        }
                    130:        /* call boot+12(aio, sysbase); */
                    131:        close(io);
                    132:        startit(kp, aio, ConsoleBase);
                    133:        errno = -1;
                    134:
                    135: freeall:
1.5.2.1 ! yamt      136:        dealloc(kp, ksize);
1.1       mhitch    137: err:
                    138:        printf("Error %ld\n", (long)errno);
                    139:        close(io);
                    140:
                    141:        timelimit = 10;
                    142:        (void)getchar();
                    143:        consclose();
                    144:        return 1;
                    145: }