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/* $OpenBSD: exec_som.c,v 1.1 1999/12/23 04:10:30 mickey Exp $ */
/*
* Copyright (c) 1999 Michael Shalayeff
* 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 Michael Shalayeff.
* 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 OR HIS RELATIVES 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 MIND, 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.
*/
#include <sys/param.h>
#include "libsa.h"
#include <machine/exec.h>
#include <lib/libsa/exec.h>
int
som_probe(fd, hdr)
int fd;
union x_header *hdr;
{
return !SOM_BADMAGIC(&hdr->x_som);
}
int
som_load(fd, xp)
int fd;
register struct x_param *xp;
{
register struct som_filehdr *xf = &xp->xp_hdr->x_som;
struct som_exec_aux x;
if (lseek(fd, xf->aux_loc, SEEK_SET) < 0 ||
read (fd, &x, sizeof(x)) != sizeof(x)) {
if (!errno)
errno = EIO;
return -1;
}
xp->xp_entry = x.a_entry;
xp->text.size = hppa_round_page(x.a_tsize);
xp->data.size = hppa_round_page(x.a_dsize);
xp->bss.size = x.a_bsize;
xp->sym.size = xf->sym_total * sizeof(struct som_sym);
xp->str.size = xf->strings_size;
xp->text.foff = x.a_tfile;
xp->data.foff = x.a_dfile;
xp->bss.foff = 0;
if (xf->sym_total) {
xp->sym.foff = xf->sym_loc;
xp->str.foff = xf->strings_loc;
}
xp->text.addr = x.a_tmem;
xp->data.addr = x.a_dmem;
xp->bss.addr = xp->data.addr + x.a_dsize;
xp->sym.addr = xp->bss.addr + xp->bss.size;
xp->str.addr = xp->sym.addr + xp->sym.size;
return 0;
}
int
som_ldsym(fd, xp)
int fd;
register struct x_param *xp;
{
return -1;
}
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