93 lines
3.3 KiB
C
93 lines
3.3 KiB
C
/* $NetBSD: freebsd_exec_aout.c,v 1.6 2004/02/13 11:36:20 wiz Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1993, 1994 Christopher G. Demetriou
|
|
* 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 Christopher G. Demetriou.
|
|
* 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.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__KERNEL_RCSID(0, "$NetBSD: freebsd_exec_aout.c,v 1.6 2004/02/13 11:36:20 wiz Exp $");
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/proc.h>
|
|
#include <sys/exec.h>
|
|
|
|
#ifndef EXEC_AOUT
|
|
#define EXEC_AOUT /* to get a.out specific stuff */
|
|
#endif
|
|
|
|
#include <compat/freebsd/freebsd_exec.h>
|
|
|
|
/*
|
|
* exec_aout_makecmds(): Check if it's an a.out-format executable.
|
|
*
|
|
* Given a proc pointer and an exec package pointer, see if the referent
|
|
* of the epp is in a.out format. First check 'standard' magic numbers for
|
|
* this architecture. If that fails, try a CPU-dependent hook.
|
|
*
|
|
* This function, in the former case, or the hook, in the latter, is
|
|
* responsible for creating a set of vmcmds which can be used to build
|
|
* the process's vm space and inserting them into the exec package.
|
|
*/
|
|
|
|
int
|
|
exec_freebsd_aout_makecmds(p, epp)
|
|
struct proc *p;
|
|
struct exec_package *epp;
|
|
{
|
|
u_long midmag;
|
|
int error = ENOEXEC;
|
|
struct exec *execp = epp->ep_hdr;
|
|
|
|
if (epp->ep_hdrvalid < sizeof(struct exec))
|
|
return ENOEXEC;
|
|
|
|
midmag = FREEBSD_N_GETMID(*execp) << 16 | FREEBSD_N_GETMAGIC(*execp);
|
|
|
|
/* assume FreeBSD's MID_MACHINE and [ZQNO]MAGIC is same as NetBSD's */
|
|
switch (midmag) {
|
|
case (MID_MACHINE << 16) | ZMAGIC:
|
|
error = exec_aout_prep_oldzmagic(p, epp);
|
|
break;
|
|
case (MID_MACHINE << 16) | QMAGIC:
|
|
error = exec_aout_prep_zmagic(p, epp);
|
|
break;
|
|
case (MID_MACHINE << 16) | NMAGIC:
|
|
error = exec_aout_prep_nmagic(p, epp);
|
|
break;
|
|
case (MID_MACHINE << 16) | OMAGIC:
|
|
error = exec_aout_prep_omagic(p, epp);
|
|
break;
|
|
}
|
|
if (error)
|
|
kill_vmcmds(&epp->ep_vmcmds);
|
|
|
|
return error;
|
|
}
|