151 lines
4.1 KiB
C
151 lines
4.1 KiB
C
/* $NetBSD: mach_exec.c,v 1.5 2001/11/13 02:09:02 lukem Exp $ */
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/*-
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* Copyright (c) 2001 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Christos Zoulas.
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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. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: mach_exec.c,v 1.5 2001/11/13 02:09:02 lukem Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/proc.h>
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#include <sys/exec.h>
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#include <sys/malloc.h>
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#include <sys/syscall.h>
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#include <compat/mach/mach_types.h>
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#include <compat/mach/mach_exec.h>
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extern char sigcode[], esigcode[];
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extern struct sysent sysent[];
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#ifdef SYSCALL_DEBUG
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extern const char * const syscallnames[];
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#endif
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#ifndef __HAVE_SYSCALL_INTERN
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void syscall __P((void));
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#else
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void mach_syscall_intern __P((struct proc *));
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#endif
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const struct emul emul_mach = {
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"mach",
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"/emul/mach",
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#ifndef __HAVE_MINIMAL_EMUL
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0,
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0,
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SYS_syscall,
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SYS_MAXSYSCALL,
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#endif
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sysent,
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#ifdef SYSCALL_DEBUG
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syscallnames,
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#else
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NULL,
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#endif
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sendsig,
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trapsignal,
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sigcode,
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esigcode,
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setregs,
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NULL,
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NULL,
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NULL,
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#ifdef __HAVE_SYSCALL_INTERN
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mach_syscall_intern,
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#else
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syscall,
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#endif
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};
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/*
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* Copy arguments onto the stack in the normal way, but add some
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* extra information in case of dynamic binding.
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*/
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int
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exec_mach_copyargs(struct exec_package *pack, struct ps_strings *arginfo,
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char **stackp, void *argp)
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{
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size_t len;
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size_t zero = 0;
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int error;
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if ((error = copyargs(pack, arginfo, stackp, argp)) != 0) {
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DPRINTF(("mach: copyargs failed\n"));
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return error;
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}
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if ((error = copyout(&zero, *stackp, sizeof(zero))) != 0) {
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DPRINTF(("mach: copyout first zero failed\n"));
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return error;
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}
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*stackp += sizeof(zero);
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if ((error = copyoutstr(pack->ep_emul_arg, *stackp, MAXPATHLEN, &len))
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!= 0) {
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DPRINTF(("mach: copyout path failed\n"));
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return error;
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}
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*stackp += len + 1;
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/* We don't need this anymore */
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free(pack->ep_emul_arg, MAXPATHLEN);
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pack->ep_emul_arg = NULL;
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len = len % sizeof(zero);
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if (len) {
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if ((error = copyout(&zero, *stackp, len)) != 0) {
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DPRINTF(("mach: zero align %d failed\n", len));
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return error;
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}
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*stackp += len;
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}
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if ((error = copyout(&zero, *stackp, sizeof(zero))) != 0) {
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DPRINTF(("mach: copyout second zero failed\n"));
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return error;
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}
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*stackp += sizeof(zero);
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return 0;
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}
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int
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exec_mach_probe(char **path) {
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*path = (char *)emul_mach.e_path;
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return 0;
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}
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