NetBSD/sys/compat/svr4/svr4_exec_elf32.c

116 lines
3.4 KiB
C

/* $NetBSD: svr4_exec_elf32.c,v 1.1 2000/12/01 19:26:26 jdolecek Exp $ */
/*-
* Copyright (c) 1994 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Christos Zoulas.
*
* 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 the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``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 FOUNDATION OR CONTRIBUTORS
* 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.
*/
#define ELFSIZE 32 /* XXX should die */
#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/exec_elf.h>
#include <sys/exec.h>
#include <sys/mman.h>
#include <machine/cpu.h>
#include <machine/reg.h>
#include <compat/svr4/svr4_types.h>
#include <compat/svr4/svr4_util.h>
#include <compat/svr4/svr4_exec.h>
#include <compat/svr4/svr4_errno.h>
void *
svr4_copyargs(pack, arginfo, stack, argp)
struct exec_package *pack;
struct ps_strings *arginfo;
void *stack;
void *argp;
{
AuxInfo *a;
if (!(a = (AuxInfo *) elf32_copyargs(pack, arginfo, stack, argp)))
return NULL;
#ifdef SVR4_COMPAT_SOLARIS2
if (pack->ep_emul_arg) {
a->au_type = AT_SUN_UID;
a->au_v = p->p_ucred->cr_uid;
a++;
a->au_type = AT_SUN_RUID;
a->au_v = p->p_cred->ruid;
a++;
a->au_type = AT_SUN_GID;
a->au_v = p->p_ucred->cr_gid;
a++;
a->au_type = AT_SUN_RGID;
a->au_v = p->p_cred->rgid;
a++;
}
#endif
return a;
}
int
svr4_elf32_probe(p, epp, eh, itp, pos)
struct proc *p;
struct exec_package *epp;
void *eh;
char *itp;
vaddr_t *pos;
{
const char *bp;
int error;
size_t len;
if (itp[0]) {
if ((error = emul_find(p, NULL, epp->ep_esch->es_emul->e_path, itp, &bp, 0)))
return error;
if ((error = copystr(bp, itp, MAXPATHLEN, &len)))
return error;
free((void *)bp, M_TEMP);
}
*pos = SVR4_INTERP_ADDR;
return 0;
}