/* $NetBSD: mopcopy.c,v 1.14 2024/12/03 05:57:02 kalvisd Exp $ */
/* mopcopy - Convert a Unix format kernel into something that
* can be transferred via MOP.
*
* This code was written while referring to the NetBSD/vax boot
* loader. Therefore anything that can be booted by the Vax
* should be convertible with this program.
*
* If necessary, the a.out header is stripped, and the program
* segments are padded out. The BSS segment is zero filled.
* A header is prepended that looks like an IHD header. In
* particular the Unix machine ID is placed where mopd expects
* the image type to be (offset is IHD_W_ALIAS). If the machine
* ID could be mistaken for a DEC image type, then the conversion
* is aborted. The original a.out header is copied into the front
* of the header so that once we have detected the Unix machine
* ID we can haul the load address and the xfer address out.
*/
/*
* Copyright (c) 1996 Lloyd Parkes. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Lloyd Parkes.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#if defined (HAVE_NBTOOL_CONFIG_H)
# include "nbtool_config.h"
#else
# include "port.h"
#endif /* defined (HAVE_NBTOOL_CONFIG_H) */
#ifndef lint
__RCSID("$NetBSD: mopcopy.c,v 1.14 2024/12/03 05:57:02 kalvisd Exp $");
#endif
#include "os.h"
#include "common.h"
#include "mopdef.h"
#include "file.h"
#if !defined(NOAOUT)
#if defined (HAVE_NBTOOL_CONFIG_H) || defined(__NetBSD__) || defined(__OpenBSD__)
#include <sys/exec_aout.h>
#endif
#if defined(__FreeBSD__)
#include <sys/imgact_aout.h>
#endif
#endif /* !NOAOUT */
#if defined(__bsdi__)
#include <a.out.h>
#define NOAOUT
#endif
#if !defined(MID_VAX)
#define MID_VAX 150
#endif
#if !defined(MID_VAX1K)
#define MID_VAX1K 140
#endif
#ifndef NOELF
# if defined (HAVE_NBTOOL_CONFIG_H) || defined(__NetBSD__)
# include <sys/exec_elf.h>
# else
# define NOELF
# endif
# if !defined(EM_VAX)
# define EM_VAX 75
# endif
#endif /* NOELF */
u_char header[512]; /* The VAX header we generate is 1 block. */
#if !defined(NOAOUT)
struct exec ex, ex_swap;
#endif
int
main(int argc, char **argv)
{
FILE *out; /* A FILE because that is easier. */
int i, j;
struct dllist dl;
if (argc != 3) {
fprintf (stderr, "usage: %s kernel-in sys-out\n",
getprogname());
return (1);
}
dl.ldfd = open (argv[1], O_RDONLY);
if (dl.ldfd == -1)
err(2, "open `%s'", argv[1]);
if (GetFileInfo(&dl) == -1)
errx(3, "`%s' is an unknown file type", argv[1]);
switch (dl.image_type) {
case IMAGE_TYPE_MOP:
errx(3, "`%s' is already a MOP image", argv[1]);
break;
#ifndef NOELF
case IMAGE_TYPE_ELF32:
if (dl.e_machine != EM_VAX)
printf("WARNING: `%s' is not a VAX image "
"(machine=%d)\n", argv[1], dl.e_machine);
for (i = 0, j = 0; j < dl.e_nsec; j++)
i += dl.e_sections[j].s_fsize + dl.e_sections[j].s_pad;
break;
#endif
#ifndef NOAOUT
case IMAGE_TYPE_AOUT:
if (dl.a_mid != MID_VAX && dl.a_mid != MID_VAX1K)
printf("WARNING: `%s' is not a VAX image (mid=%d)\n",
argv[1], dl.a_mid);
i = dl.a_text + dl.a_text_fill + dl.a_data + dl.a_data_fill +
dl.a_bss + dl.a_bss_fill;
break;
#endif
default:
errx(3, "Image type `%s' not supported",
FileTypeName(dl.image_type));
}
i = (i+1) / 512;
dl.nloadaddr = dl.loadaddr;
dl.lseek = lseek(dl.ldfd,0L,SEEK_CUR);
dl.a_lseek = 0;
dl.count = 0;
dl.dl_bsz = 512;
mopFilePutLX(header,IHD_W_SIZE,0xd4,2); /* Offset to ISD section. */
mopFilePutLX(header,IHD_W_ACTIVOFF,0x30,2);/* Offset to 1st section.*/
mopFilePutLX(header,IHD_W_ALIAS,IHD_C_NATIVE,2);/* It's a VAX image.*/
mopFilePutLX(header,IHD_B_HDRBLKCNT,1,1); /* Only one header block. */
mopFilePutLX(header,0xd4+ISD_V_VPN,dl.loadaddr/512,2);/* load Addr */
mopFilePutLX(header,0x30+IHA_L_TFRADR1,dl.xferaddr,4); /* Xfer Addr */
mopFilePutLX(header,0xd4+ISD_W_PAGCNT,i,2);/* Imagesize in blks.*/
out = fopen (argv[2], "w");
if (!out)
err(2, "writing `%s'", argv[2]);
/* Now we do the actual work. Write VAX MOP-image header */
fwrite (header, sizeof (header), 1, out);
switch (dl.image_type) {
case IMAGE_TYPE_MOP:
abort();
case IMAGE_TYPE_ELF32:
#ifdef NOELF
abort();
#else
fprintf(stderr, "copying ");
for (j = 0; j < dl.e_nsec; j++)
fprintf(stderr, "%s%u+%u", j == 0 ? "" : "+",
dl.e_sections[j].s_fsize,
dl.e_sections[j].s_pad);
fprintf(stderr, "->0x%x\n", dl.xferaddr);
#endif
break;
case IMAGE_TYPE_AOUT:
#ifdef NOAOUT
abort();
#else
fprintf(stderr, "copying %u+%u+%u->0x%x\n", dl.a_text,
dl.a_data, dl.a_bss, dl.xferaddr);
#endif
break;
}
while ((i = mopFileRead(&dl,header)) > 0) {
(void)fwrite(header, i, 1, out);
}
fclose (out);
return (0);
}
