201 lines
6.0 KiB
C
201 lines
6.0 KiB
C
/* $NetBSD: ibcs2_exec_xout.c,v 1.9 2004/09/17 14:11:23 skrll Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1994, 1995, 1998 Scott Bartram
|
|
* Copyright (c) 1994 Adam Glass
|
|
* Copyright (c) 1993, 1994 Christopher G. Demetriou
|
|
* All rights reserved.
|
|
*
|
|
* originally from kern/exec_ecoff.c
|
|
*
|
|
* 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 Scott Bartram.
|
|
* 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: ibcs2_exec_xout.c,v 1.9 2004/09/17 14:11:23 skrll Exp $");
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/proc.h>
|
|
#include <sys/malloc.h>
|
|
#include <sys/namei.h>
|
|
#include <sys/vnode.h>
|
|
#include <sys/mount.h>
|
|
#include <sys/exec.h>
|
|
#include <sys/resourcevar.h>
|
|
|
|
#include <sys/mman.h>
|
|
#include <sys/sa.h>
|
|
#include <sys/syscallargs.h>
|
|
|
|
#include <machine/cpu.h>
|
|
#include <machine/reg.h>
|
|
#include <machine/ibcs2_machdep.h>
|
|
|
|
#include <compat/ibcs2/ibcs2_types.h>
|
|
#include <compat/ibcs2/ibcs2_exec.h>
|
|
#include <compat/ibcs2/ibcs2_errno.h>
|
|
#include <compat/ibcs2/ibcs2_util.h>
|
|
#include <compat/ibcs2/ibcs2_syscall.h>
|
|
|
|
int exec_ibcs2_xout_prep_nmagic __P((struct proc *, struct exec_package *,
|
|
struct xexec *, struct xext *));
|
|
int exec_ibcs2_xout_prep_zmagic __P((struct proc *, struct exec_package *,
|
|
struct xexec *, struct xext *));
|
|
|
|
int
|
|
exec_ibcs2_xout_makecmds(p, epp)
|
|
struct proc *p;
|
|
struct exec_package *epp;
|
|
{
|
|
int error;
|
|
struct xexec *xp = epp->ep_hdr;
|
|
struct xext *xep;
|
|
|
|
if (epp->ep_hdrvalid < XOUT_HDR_SIZE)
|
|
return ENOEXEC;
|
|
|
|
if ((xp->x_magic != XOUT_MAGIC) || (xp->x_cpu != XC_386))
|
|
return ENOEXEC;
|
|
if ((xp->x_renv & (XE_ABS | XE_VMOD)) || !(xp->x_renv & XE_EXEC))
|
|
return ENOEXEC;
|
|
|
|
xep = (void *)((char *)epp->ep_hdr + sizeof(struct xexec));
|
|
#ifdef notyet
|
|
if (xp->x_renv & XE_PURE)
|
|
error = exec_ibcs2_xout_prep_zmagic(p, epp, xp, xep);
|
|
else
|
|
#endif
|
|
error = exec_ibcs2_xout_prep_nmagic(p, epp, xp, xep);
|
|
|
|
if (error)
|
|
kill_vmcmds(&epp->ep_vmcmds);
|
|
|
|
return error;
|
|
}
|
|
|
|
/*
|
|
* exec_ibcs2_xout_prep_nmagic(): Prepare a pure x.out binary's exec package
|
|
*
|
|
*/
|
|
|
|
int
|
|
exec_ibcs2_xout_prep_nmagic(p, epp, xp, xep)
|
|
struct proc *p;
|
|
struct exec_package *epp;
|
|
struct xexec *xp;
|
|
struct xext *xep;
|
|
{
|
|
int error;
|
|
size_t nseg, i;
|
|
long baddr, bsize;
|
|
struct xseg *xs;
|
|
size_t resid;
|
|
size_t segsize = (size_t)xep->xe_segsize;
|
|
|
|
if (segsize > 16 * sizeof(*xs))
|
|
return ENOEXEC;
|
|
|
|
/* read in segment table */
|
|
xs = (struct xseg *)malloc(segsize, M_TEMP, M_WAITOK);
|
|
error = vn_rdwr(UIO_READ, epp->ep_vp, (caddr_t)xs,
|
|
segsize, xep->xe_segpos,
|
|
UIO_SYSSPACE, IO_NODELOCKED, p->p_ucred,
|
|
&resid, NULL);
|
|
if (error) {
|
|
DPRINTF(("segment table read error %d\n", error));
|
|
free(xs, M_TEMP);
|
|
return ENOEXEC;
|
|
}
|
|
|
|
for (nseg = segsize / sizeof(*xs), i = 0; i < nseg; i++) {
|
|
switch (xs[i].xs_type) {
|
|
case XS_TTEXT: /* text segment */
|
|
|
|
DPRINTF(("text addr %lx psize %ld vsize %ld off %ld\n",
|
|
xs[i].xs_rbase, xs[i].xs_psize,
|
|
xs[i].xs_vsize, xs[i].xs_filpos));
|
|
|
|
epp->ep_taddr = xs[i].xs_rbase; /* XXX - align ??? */
|
|
epp->ep_tsize = xs[i].xs_vsize;
|
|
|
|
DPRINTF(("VMCMD: addr %lx size %ld offset %ld\n",
|
|
epp->ep_taddr, epp->ep_tsize,
|
|
xs[i].xs_filpos));
|
|
NEW_VMCMD(&epp->ep_vmcmds, vmcmd_map_readvn,
|
|
epp->ep_tsize, epp->ep_taddr,
|
|
epp->ep_vp, xs[i].xs_filpos,
|
|
VM_PROT_READ|VM_PROT_EXECUTE);
|
|
break;
|
|
|
|
case XS_TDATA: /* data segment */
|
|
|
|
DPRINTF(("data addr %lx psize %ld vsize %ld off %ld\n",
|
|
xs[i].xs_rbase, xs[i].xs_psize,
|
|
xs[i].xs_vsize, xs[i].xs_filpos));
|
|
|
|
epp->ep_daddr = xs[i].xs_rbase; /* XXX - align ??? */
|
|
epp->ep_dsize = xs[i].xs_vsize;
|
|
|
|
DPRINTF(("VMCMD: addr %lx size %ld offset %ld\n",
|
|
epp->ep_daddr, xs[i].xs_psize,
|
|
xs[i].xs_filpos));
|
|
NEW_VMCMD(&epp->ep_vmcmds, vmcmd_map_readvn,
|
|
xs[i].xs_psize, epp->ep_daddr,
|
|
epp->ep_vp, xs[i].xs_filpos,
|
|
VM_PROT_READ|VM_PROT_WRITE|VM_PROT_EXECUTE);
|
|
|
|
/* set up command for bss segment */
|
|
baddr = round_page(epp->ep_daddr + xs[i].xs_psize);
|
|
bsize = epp->ep_daddr + epp->ep_dsize - baddr;
|
|
if (bsize > 0) {
|
|
DPRINTF(("VMCMD: bss addr %lx size %ld off %d\n",
|
|
baddr, bsize, 0));
|
|
NEW_VMCMD(&epp->ep_vmcmds, vmcmd_map_zero,
|
|
bsize, baddr, NULLVP, 0,
|
|
VM_PROT_READ|VM_PROT_WRITE|
|
|
VM_PROT_EXECUTE);
|
|
}
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* set up entry point */
|
|
epp->ep_entry = xp->x_entry;
|
|
|
|
DPRINTF(("text addr: %lx size: %ld data addr: %lx size: %ld entry: %lx\n",
|
|
epp->ep_taddr, epp->ep_tsize,
|
|
epp->ep_daddr, epp->ep_dsize,
|
|
epp->ep_entry));
|
|
|
|
free(xs, M_TEMP);
|
|
return (*epp->ep_esch->es_setup_stack)(p, epp);
|
|
}
|