135 lines
3.5 KiB
C
135 lines
3.5 KiB
C
/* $NetBSD: svr4_exec.c,v 1.23 1996/10/13 00:08:26 christos Exp $ */
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/*
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* Copyright (c) 1994 Christos Zoulas
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#define ELFSIZE 32 /* XXX should die */
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/proc.h>
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#include <sys/malloc.h>
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#include <sys/namei.h>
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#include <sys/vnode.h>
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#include <sys/exec_elf.h>
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#include <sys/exec.h>
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#include <sys/mman.h>
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#include <vm/vm.h>
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#include <vm/vm_param.h>
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#include <vm/vm_map.h>
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#include <machine/cpu.h>
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#include <machine/reg.h>
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#include <machine/svr4_machdep.h>
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#include <compat/svr4/svr4_util.h>
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#include <compat/svr4/svr4_syscall.h>
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#include <compat/svr4/svr4_exec.h>
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static void *svr4_copyargs __P((struct exec_package *, struct ps_strings *,
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void *, void *));
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const char svr4_emul_path[] = "/emul/svr4";
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extern int svr4_error[];
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extern char svr4_sigcode[], svr4_esigcode[];
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extern struct sysent svr4_sysent[];
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extern char *svr4_syscallnames[];
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struct emul emul_svr4 = {
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"svr4",
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svr4_error,
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svr4_sendsig,
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SVR4_SYS_syscall,
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SVR4_SYS_MAXSYSCALL,
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svr4_sysent,
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svr4_syscallnames,
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SVR4_AUX_ARGSIZ,
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svr4_copyargs,
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setregs,
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svr4_sigcode,
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svr4_esigcode,
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};
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static void *
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svr4_copyargs(pack, arginfo, stack, argp)
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struct exec_package *pack;
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struct ps_strings *arginfo;
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void *stack;
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void *argp;
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{
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AuxInfo *a;
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if (!(a = (AuxInfo *) elf32_copyargs(pack, arginfo, stack, argp)))
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return NULL;
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#ifdef SVR4_COMPAT_SOLARIS2
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if (pack->ep_emul_arg) {
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a->au_id = AUX_sun_uid;
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a->au_v = p->p_ucred->cr_uid;
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a++;
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a->au_id = AUX_sun_ruid;
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a->au_v = p->p_cred->ruid;
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a++;
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a->au_id = AUX_sun_gid;
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a->au_v = p->p_ucred->cr_gid;
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a++;
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a->au_id = AUX_sun_rgid;
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a->au_v = p->p_cred->rgid;
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a++;
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}
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#endif
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return a;
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}
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int
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svr4_elf32_probe(p, epp, eh, itp, pos)
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struct proc *p;
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struct exec_package *epp;
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Elf32_Ehdr *eh;
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char *itp;
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Elf32_Addr *pos;
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{
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char *bp;
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int error;
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size_t len;
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if (itp[0]) {
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if ((error = emul_find(p, NULL, svr4_emul_path, itp, &bp, 0)))
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return error;
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if ((error = copystr(bp, itp, MAXPATHLEN, &len)))
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return error;
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free(bp, M_TEMP);
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}
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epp->ep_emul = &emul_svr4;
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*pos = SVR4_INTERP_ADDR;
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return 0;
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}
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