1 /* $OpenBSD: mopa.out.c,v 1.11 2010/11/19 21:09:20 miod Exp $ */ 2 3 /* mopa.out - Convert a Unix format kernel into something that 4 * can be transferred via MOP. 5 * 6 * This code was written while referring to the NetBSD/vax boot 7 * loader. Therefore anything that can be booted by the Vax 8 * should be convertable with this program. 9 * 10 * If necessary, the a.out header is stripped, and the program 11 * segments are padded out. The BSS segment is zero filled. 12 * A header is prepended that looks like an IHD header. In 13 * particular the Unix machine ID is placed where mopd expects 14 * the image type to be (offset is IHD_W_ALIAS). If the machine 15 * ID could be mistaken for a DEC image type, then the conversion 16 * is aborted. The original a.out header is copied into the front 17 * of the header so that once we have detected the Unix machine 18 * ID we can haul the load address and the xfer address out. 19 */ 20 21 /* 22 * Copyright (c) 1996 Lloyd Parkes. All rights reserved. 23 * 24 * Redistribution and use in source and binary forms, with or without 25 * modification, are permitted provided that the following conditions 26 * are met: 27 * 1. Redistributions of source code must retain the above copyright 28 * notice, this list of conditions and the following disclaimer. 29 * 2. Redistributions in binary form must reproduce the above copyright 30 * notice, this list of conditions and the following disclaimer in the 31 * documentation and/or other materials provided with the distribution. 32 * 3. All advertising materials mentioning features or use of this software 33 * must display the following acknowledgement: 34 * This product includes software developed by Lloyd Parkes. 35 * 4. The name of the author may not be used to endorse or promote products 36 * derived from this software without specific prior written permission. 37 * 38 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 39 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 40 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 41 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 42 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 43 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 44 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 45 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 46 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 47 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 48 */ 49 50 #include "os.h" 51 #include "common/common.h" 52 #include "common/mopdef.h" 53 #include "common/file.h" 54 #if defined(__NetBSD__) || defined(__OpenBSD__) 55 #include <sys/exec_aout.h> 56 #endif 57 #if defined(__FreeBSD__) 58 #include <sys/imgact_aout.h> 59 #endif 60 #if defined(__bsdi__) 61 #include <a.out.h> 62 #define NOAOUT 63 #endif 64 #if !defined(MID_VAX) 65 #define MID_VAX 140 66 #endif 67 68 u_char header[512]; /* The VAX header we generate is 1 block. */ 69 struct exec ex, ex_swap; 70 71 int 72 main (int argc, char **argv) 73 { 74 FILE *out; /* A FILE because that is easier. */ 75 int i; 76 struct dllist dl; 77 78 #ifdef NOAOUT 79 fprintf(stderr, "%s: has no function in OS/BSD\n", argv[0]); 80 return(1); 81 #endif 82 83 if (argc != 3) { 84 fprintf (stderr, "usage: %s infile outfile\n", argv[0]); 85 return (1); 86 } 87 88 dl.ldfd = open (argv[1], O_RDONLY); 89 if (dl.ldfd == -1) { 90 perror (argv[1]); 91 return (2); 92 } 93 94 GetFileInfo(dl.ldfd, 95 &dl.loadaddr, 96 &dl.xferaddr, 97 &dl.aout, 98 &dl.a_text,&dl.a_text_fill, 99 &dl.a_data,&dl.a_data_fill, 100 &dl.a_bss ,&dl.a_bss_fill, 0); 101 102 if (dl.aout == -1) { 103 fprintf(stderr,"%s: not an a.out file\n",argv[1]); 104 return (3); 105 } 106 107 if (dl.aout != MID_VAX) { 108 fprintf(stderr,"%s: file is not a VAX image (mid=%d)\n", 109 argv[1],dl.aout); 110 return (4); 111 } 112 113 i = dl.a_text + dl.a_text_fill + dl.a_data + dl.a_data_fill + 114 dl.a_bss + dl.a_bss_fill; 115 i = (i+1) / 512; 116 117 dl.nloadaddr = dl.loadaddr; 118 dl.lseek = lseek(dl.ldfd,0L,SEEK_CUR); 119 dl.a_lseek = 0; 120 dl.count = 0; 121 dl.dl_bsz = 512; 122 123 mopFilePutLX(header,IHD_W_SIZE,0xd4,2); /* Offset to ISD section. */ 124 mopFilePutLX(header,IHD_W_ACTIVOFF,0x30,2);/* Offset to 1st section.*/ 125 mopFilePutLX(header,IHD_W_ALIAS,IHD_C_NATIVE,2);/* It's a VAX image.*/ 126 mopFilePutLX(header,IHD_B_HDRBLKCNT,1,1); /* Only one header block. */ 127 mopFilePutLX(header,0x30+IHA_L_TFRADR1,dl.xferaddr,4); /* Xfer Addr */ 128 mopFilePutLX(header,0xd4+ISD_W_PAGCNT,i,2);/* Imagesize in blks.*/ 129 130 out = fopen (argv[2], "w"); 131 if (!out) { 132 perror (argv[2]); 133 return (2); 134 } 135 136 /* Now we do the actual work. Write VAX MOP-image header */ 137 138 fwrite (header, sizeof (header), 1, out); 139 140 fprintf (stderr, "copying %lu", dl.a_text); 141 fprintf (stderr, "+%lu", dl.a_data); 142 fprintf (stderr, "+%lu", dl.a_bss); 143 fprintf (stderr, "->%lu", dl.xferaddr); 144 fprintf (stderr, "\n"); 145 146 while ((i = mopFileRead(&dl,header)) > 0) { 147 (void)fwrite(header, i, 1, out); 148 } 149 150 fclose (out); 151 exit(0); 152 } 153