156 lines
5.0 KiB
C
156 lines
5.0 KiB
C
/* $NetBSD: mopa.out.c,v 1.4 1997/04/17 21:09:05 christos Exp $ */
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/* mopa.out - Convert a Unix format kernel into something that
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* can be transfered via MOP.
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*
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* This code was written while refering to the NetBSD/vax boot
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* loader. Therefore anything that can be booted by the Vax
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* should be convertable with this program.
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*
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* If necessary, the a.out header is stripped, and the program
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* segments are padded out. The BSS segment is zero filled.
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* A header is prepended that looks like an IHD header. In
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* particular the Unix mahine ID is placed where mopd expects
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* the image type to be (offset is IHD_W_ALIAS). If the machine
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* ID could be mistaken for a DEC image type, then the conversion
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* is aborted. The original a.out header is copied into the front
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* of the header so that once we have detected the Unix machine
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* ID we can haul the load address and the xfer address out.
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*/
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/*
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* Copyright (c) 1996 Lloyd Parkes. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Lloyd Parkes.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef LINT
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static char rcsid[] = "$NetBSD: mopa.out.c,v 1.4 1997/04/17 21:09:05 christos Exp $";
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#endif
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#include "os.h"
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#include "common/common.h"
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#include "common/mopdef.h"
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#include "common/file.h"
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#if defined(__NetBSD__) || defined(__OpenBSD__)
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#include <sys/exec_aout.h>
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#endif
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#if defined(__FreeBSD__)
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#include <sys/imgact_aout.h>
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#endif
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#if defined(__bsdi__)
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#include <a.out.h>
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#define NOAOUT
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#endif
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#if !defined(MID_VAX)
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#define MID_VAX 140
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#endif
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u_char header[512]; /* The VAX header we generate is 1 block. */
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struct exec ex, ex_swap;
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int
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main (int argc, char **argv)
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{
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FILE *out; /* A FILE because that is easier. */
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int i;
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struct dllist dl;
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#ifdef NOAOUT
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fprintf(stderr, "%s: has no function in OS/BSD\n", argv[0]);
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return(1);
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#endif
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if (argc != 3) {
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fprintf (stderr, "usage: %s kernel-in sys-out\n", argv[0]);
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return (1);
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}
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dl.ldfd = open (argv[1], O_RDONLY);
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if (dl.ldfd == -1) {
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perror (argv[1]);
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return (2);
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}
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GetFileInfo(dl.ldfd,
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&dl.loadaddr,
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&dl.xferaddr,
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&dl.aout,
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&dl.a_text,&dl.a_text_fill,
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&dl.a_data,&dl.a_data_fill,
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&dl.a_bss ,&dl.a_bss_fill );
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if (dl.aout == -1) {
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fprintf(stderr,"s%: not an a.out file\n",argv[1]);
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return (3);
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}
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if (dl.aout != MID_VAX) {
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fprintf(stderr,"%s: file is not a VAX image (mid=%d)\n",
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argv[1],dl.aout);
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return (4);
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}
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i = dl.a_text + dl.a_text_fill + dl.a_data + dl.a_data_fill +
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dl.a_bss + dl.a_bss_fill;
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i = (i+1) / 512;
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dl.nloadaddr = dl.loadaddr;
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dl.lseek = lseek(dl.ldfd,0L,SEEK_CUR);
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dl.a_lseek = 0;
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dl.count = 0;
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dl.dl_bsz = 512;
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mopFilePutLX(header,IHD_W_SIZE,0xd4,2); /* Offset to ISD section. */
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mopFilePutLX(header,IHD_W_ACTIVOFF,0x30,2);/* Offset to 1st section.*/
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mopFilePutLX(header,IHD_W_ALIAS,IHD_C_NATIVE,2);/* It's a VAX image.*/
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mopFilePutLX(header,IHD_B_HDRBLKCNT,1,1); /* Only one header block. */
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mopFilePutLX(header,0x30+IHA_L_TFRADR1,dl.xferaddr,4); /* Xfer Addr */
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mopFilePutLX(header,0xd4+ISD_W_PAGCNT,i,2);/* Imagesize in blks.*/
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out = fopen (argv[2], "w");
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if (!out) {
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perror (argv[2]);
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return (2);
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}
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/* Now we do the actual work. Write VAX MOP-image header */
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fwrite (header, sizeof (header), 1, out);
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fprintf (stderr, "copying %lu", dl.a_text);
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fprintf (stderr, "+%lu", dl.a_data);
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fprintf (stderr, "+%lu", dl.a_bss);
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fprintf (stderr, "->%lu", dl.xferaddr);
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fprintf (stderr, "\n");
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while ((i = mopFileRead(&dl,header)) > 0) {
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(void)fwrite(header, i, 1, out);
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}
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fclose (out);
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}
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