1 /* $NetBSD: mopcopy.c,v 1.14 2024/12/03 05:57:02 kalvisd Exp $ */ 2 3 /* mopcopy - 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 convertible 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 #if defined (HAVE_NBTOOL_CONFIG_H) 51 # include "nbtool_config.h" 52 #else 53 # include "port.h" 54 #endif /* defined (HAVE_NBTOOL_CONFIG_H) */ 55 #ifndef lint 56 __RCSID("$NetBSD: mopcopy.c,v 1.14 2024/12/03 05:57:02 kalvisd Exp $"); 57 #endif 58 59 #include "os.h" 60 #include "common.h" 61 #include "mopdef.h" 62 #include "file.h" 63 #if !defined(NOAOUT) 64 #if defined (HAVE_NBTOOL_CONFIG_H) || defined(__NetBSD__) || defined(__OpenBSD__) 65 #include <sys/exec_aout.h> 66 #endif 67 #if defined(__FreeBSD__) 68 #include <sys/imgact_aout.h> 69 #endif 70 #endif /* !NOAOUT */ 71 #if defined(__bsdi__) 72 #include <a.out.h> 73 #define NOAOUT 74 #endif 75 #if !defined(MID_VAX) 76 #define MID_VAX 150 77 #endif 78 #if !defined(MID_VAX1K) 79 #define MID_VAX1K 140 80 #endif 81 82 #ifndef NOELF 83 # if defined (HAVE_NBTOOL_CONFIG_H) || defined(__NetBSD__) 84 # include <sys/exec_elf.h> 85 # else 86 # define NOELF 87 # endif 88 # if !defined(EM_VAX) 89 # define EM_VAX 75 90 # endif 91 #endif /* NOELF */ 92 93 u_char header[512]; /* The VAX header we generate is 1 block. */ 94 #if !defined(NOAOUT) 95 struct exec ex, ex_swap; 96 #endif 97 98 int 99 main(int argc, char **argv) 100 { 101 FILE *out; /* A FILE because that is easier. */ 102 int i, j; 103 struct dllist dl; 104 105 if (argc != 3) { 106 fprintf (stderr, "usage: %s kernel-in sys-out\n", 107 getprogname()); 108 return (1); 109 } 110 111 dl.ldfd = open (argv[1], O_RDONLY); 112 if (dl.ldfd == -1) 113 err(2, "open `%s'", argv[1]); 114 115 if (GetFileInfo(&dl) == -1) 116 errx(3, "`%s' is an unknown file type", argv[1]); 117 118 switch (dl.image_type) { 119 case IMAGE_TYPE_MOP: 120 errx(3, "`%s' is already a MOP image", argv[1]); 121 break; 122 123 #ifndef NOELF 124 case IMAGE_TYPE_ELF32: 125 if (dl.e_machine != EM_VAX) 126 printf("WARNING: `%s' is not a VAX image " 127 "(machine=%d)\n", argv[1], dl.e_machine); 128 for (i = 0, j = 0; j < dl.e_nsec; j++) 129 i += dl.e_sections[j].s_fsize + dl.e_sections[j].s_pad; 130 break; 131 #endif 132 133 #ifndef NOAOUT 134 case IMAGE_TYPE_AOUT: 135 if (dl.a_mid != MID_VAX && dl.a_mid != MID_VAX1K) 136 printf("WARNING: `%s' is not a VAX image (mid=%d)\n", 137 argv[1], dl.a_mid); 138 i = dl.a_text + dl.a_text_fill + dl.a_data + dl.a_data_fill + 139 dl.a_bss + dl.a_bss_fill; 140 break; 141 #endif 142 143 default: 144 errx(3, "Image type `%s' not supported", 145 FileTypeName(dl.image_type)); 146 } 147 148 i = (i+1) / 512; 149 150 dl.nloadaddr = dl.loadaddr; 151 dl.lseek = lseek(dl.ldfd,0L,SEEK_CUR); 152 dl.a_lseek = 0; 153 dl.count = 0; 154 dl.dl_bsz = 512; 155 156 mopFilePutLX(header,IHD_W_SIZE,0xd4,2); /* Offset to ISD section. */ 157 mopFilePutLX(header,IHD_W_ACTIVOFF,0x30,2);/* Offset to 1st section.*/ 158 mopFilePutLX(header,IHD_W_ALIAS,IHD_C_NATIVE,2);/* It's a VAX image.*/ 159 mopFilePutLX(header,IHD_B_HDRBLKCNT,1,1); /* Only one header block. */ 160 mopFilePutLX(header,0xd4+ISD_V_VPN,dl.loadaddr/512,2);/* load Addr */ 161 mopFilePutLX(header,0x30+IHA_L_TFRADR1,dl.xferaddr,4); /* Xfer Addr */ 162 mopFilePutLX(header,0xd4+ISD_W_PAGCNT,i,2);/* Imagesize in blks.*/ 163 164 out = fopen (argv[2], "w"); 165 if (!out) 166 err(2, "writing `%s'", argv[2]); 167 168 /* Now we do the actual work. Write VAX MOP-image header */ 169 170 fwrite (header, sizeof (header), 1, out); 171 172 switch (dl.image_type) { 173 case IMAGE_TYPE_MOP: 174 abort(); 175 176 case IMAGE_TYPE_ELF32: 177 #ifdef NOELF 178 abort(); 179 #else 180 fprintf(stderr, "copying "); 181 for (j = 0; j < dl.e_nsec; j++) 182 fprintf(stderr, "%s%u+%u", j == 0 ? "" : "+", 183 dl.e_sections[j].s_fsize, 184 dl.e_sections[j].s_pad); 185 fprintf(stderr, "->0x%x\n", dl.xferaddr); 186 #endif 187 break; 188 189 case IMAGE_TYPE_AOUT: 190 #ifdef NOAOUT 191 abort(); 192 #else 193 fprintf(stderr, "copying %u+%u+%u->0x%x\n", dl.a_text, 194 dl.a_data, dl.a_bss, dl.xferaddr); 195 #endif 196 break; 197 } 198 199 while ((i = mopFileRead(&dl,header)) > 0) { 200 (void)fwrite(header, i, 1, out); 201 } 202 203 fclose (out); 204 return (0); 205 } 206
Indexes created Sat Sep 20 22:09:52 GMT 2025