1 /* $NetBSD: boot.c,v 1.6 2009/03/14 21:04:13 dsl Exp $ */ 2 3 /*- 4 * Copyright (C) 1999 Tsubai Masanari. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. The name of the author may not be used to endorse or promote products 15 * derived from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #include <sys/param.h> 30 #include <sys/sysctl.h> 31 #include <machine/cpu.h> 32 #include <err.h> 33 #include <stdio.h> 34 #include <stdlib.h> 35 #include <unistd.h> 36 37 #include <lib/libsa/loadfile.h> 38 39 #if 1 40 # define DPRINTF printf 41 #else 42 # define DPRINTF while (0) printf 43 #endif 44 45 void LoadAndReset(void *); 46 47 char *netbsd = "/netbsd"; 48 49 int 50 main(int argc, char *argv[]) 51 { 52 u_long marks[MARK_MAX]; 53 u_long start, entry; 54 int fd, sz, i; 55 u_long *ap; 56 u_long cksum, *lp; 57 void *image; 58 59 /* use the specified kernel if any */ 60 if (argc > 1) 61 netbsd = argv[1]; 62 63 DPRINTF("loading %s...\n", netbsd); 64 65 /* count kernel size */ 66 marks[MARK_START] = 0; 67 fd = loadfile(netbsd, marks, COUNT_ALL); 68 if (fd == -1) 69 err(0, "loadfile(1)"); 70 close(fd); 71 72 sz = marks[MARK_END] - marks[MARK_START]; 73 start = marks[MARK_START]; 74 entry = marks[MARK_ENTRY]; 75 76 DPRINTF("size = 0x%x\n", sz); 77 DPRINTF("start = 0x%lx\n", start); 78 79 ap = malloc(sz + 2 * sizeof(long)); 80 if (ap == NULL) 81 err(0, "malloc"); 82 83 image = &ap[2]; 84 85 marks[MARK_START] = (u_long)image - start; 86 fd = loadfile(netbsd, marks, LOAD_ALL); 87 if (fd == -1) 88 err(0, "loadfile(2)"); 89 close(fd); 90 91 /* ssym = marks[MARK_SYM]; */ 92 /* esym = marks[MARK_END]; */ 93 94 cksum = 0; 95 lp = image; 96 for (i = 0; i < sz / sizeof(cksum); i++) 97 cksum += *lp++; 98 99 ap[0] = sz; 100 ap[1] = cksum; 101 LoadAndReset(ap); 102 103 printf("LoadAndReset returned...\n"); 104 free(ap); 105 exit(0); 106 } 107 108 void 109 LoadAndReset(void *image) 110 { 111 int mib[2]; 112 u_long val; 113 114 mib[0] = CTL_MACHDEP; 115 mib[1] = CPU_LOADANDRESET; 116 val = (u_long)image; 117 118 sysctl(mib, 2, NULL, NULL, &val, sizeof(val)); 119 } 120