1 /* $NetBSD: mopcopy.c,v 1.12 2022/05/24 06:28:02 andvar 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 #include "port.h" 51 #ifndef lint 52 __RCSID("$NetBSD: mopcopy.c,v 1.12 2022/05/24 06:28:02 andvar Exp $"); 53 #endif 54 55 #include "os.h" 56 #include "common.h" 57 #include "mopdef.h" 58 #include "file.h" 59 #if !defined(NOAOUT) 60 #if defined(__NetBSD__) || defined(__OpenBSD__) 61 #include <sys/exec_aout.h> 62 #endif 63 #if defined(__FreeBSD__) 64 #include <sys/imgact_aout.h> 65 #endif 66 #endif /* !NOAOUT */ 67 #if defined(__bsdi__) 68 #include <a.out.h> 69 #define NOAOUT 70 #endif 71 #if !defined(MID_VAX) 72 #define MID_VAX 150 73 #endif 74 #if !defined(MID_VAX1K) 75 #define MID_VAX1K 140 76 #endif 77 78 #ifndef NOELF 79 # if defined(__NetBSD__) 80 # include <sys/exec_elf.h> 81 # else 82 # define NOELF 83 # endif 84 # if !defined(EM_VAX) 85 # define EM_VAX 75 86 # endif 87 #endif /* NOELF */ 88 89 u_char header[512]; /* The VAX header we generate is 1 block. */ 90 #if !defined(NOAOUT) 91 struct exec ex, ex_swap; 92 #endif 93 94 int 95 main(int argc, char **argv) 96 { 97 FILE *out; /* A FILE because that is easier. */ 98 int i, j; 99 struct dllist dl; 100 101 if (argc != 3) { 102 fprintf (stderr, "usage: %s kernel-in sys-out\n", 103 getprogname()); 104 return (1); 105 } 106 107 dl.ldfd = open (argv[1], O_RDONLY); 108 if (dl.ldfd == -1) 109 err(2, "open `%s'", argv[1]); 110 111 if (GetFileInfo(&dl) == -1) 112 errx(3, "`%s' is an unknown file type", argv[1]); 113 114 switch (dl.image_type) { 115 case IMAGE_TYPE_MOP: 116 errx(3, "`%s' is already a MOP image", argv[1]); 117 break; 118 119 #ifndef NOELF 120 case IMAGE_TYPE_ELF32: 121 if (dl.e_machine != EM_VAX) 122 printf("WARNING: `%s' is not a VAX image " 123 "(machine=%d)\n", argv[1], dl.e_machine); 124 for (i = 0, j = 0; j < dl.e_nsec; j++) 125 i += dl.e_sections[j].s_fsize + dl.e_sections[j].s_pad; 126 break; 127 #endif 128 129 #ifndef NOAOUT 130 case IMAGE_TYPE_AOUT: 131 if (dl.a_mid != MID_VAX && dl.a_mid != MID_VAX1K) 132 printf("WARNING: `%s' is not a VAX image (mid=%d)\n", 133 argv[1], dl.a_mid); 134 i = dl.a_text + dl.a_text_fill + dl.a_data + dl.a_data_fill + 135 dl.a_bss + dl.a_bss_fill; 136 break; 137 #endif 138 139 default: 140 errx(3, "Image type `%s' not supported", 141 FileTypeName(dl.image_type)); 142 } 143 144 i = (i+1) / 512; 145 146 dl.nloadaddr = dl.loadaddr; 147 dl.lseek = lseek(dl.ldfd,0L,SEEK_CUR); 148 dl.a_lseek = 0; 149 dl.count = 0; 150 dl.dl_bsz = 512; 151 152 mopFilePutLX(header,IHD_W_SIZE,0xd4,2); /* Offset to ISD section. */ 153 mopFilePutLX(header,IHD_W_ACTIVOFF,0x30,2);/* Offset to 1st section.*/ 154 mopFilePutLX(header,IHD_W_ALIAS,IHD_C_NATIVE,2);/* It's a VAX image.*/ 155 mopFilePutLX(header,IHD_B_HDRBLKCNT,1,1); /* Only one header block. */ 156 mopFilePutLX(header,0xd4+ISD_V_VPN,dl.loadaddr/512,2);/* load Addr */ 157 mopFilePutLX(header,0x30+IHA_L_TFRADR1,dl.xferaddr,4); /* Xfer Addr */ 158 mopFilePutLX(header,0xd4+ISD_W_PAGCNT,i,2);/* Imagesize in blks.*/ 159 160 out = fopen (argv[2], "w"); 161 if (!out) 162 err(2, "writing `%s'", argv[2]); 163 164 /* Now we do the actual work. Write VAX MOP-image header */ 165 166 fwrite (header, sizeof (header), 1, out); 167 168 switch (dl.image_type) { 169 case IMAGE_TYPE_MOP: 170 abort(); 171 172 case IMAGE_TYPE_ELF32: 173 #ifdef NOELF 174 abort(); 175 #else 176 fprintf(stderr, "copying "); 177 for (j = 0; j < dl.e_nsec; j++) 178 fprintf(stderr, "%s%u+%u", j == 0 ? "" : "+", 179 dl.e_sections[j].s_fsize, 180 dl.e_sections[j].s_pad); 181 fprintf(stderr, "->0x%x\n", dl.xferaddr); 182 #endif 183 break; 184 185 case IMAGE_TYPE_AOUT: 186 #ifdef NOAOUT 187 abort(); 188 #else 189 fprintf(stderr, "copying %u+%u+%u->0x%x\n", dl.a_text, 190 dl.a_data, dl.a_bss, dl.xferaddr); 191 #endif 192 break; 193 } 194 195 while ((i = mopFileRead(&dl,header)) > 0) { 196 (void)fwrite(header, i, 1, out); 197 } 198 199 fclose (out); 200 return (0); 201 } 202