xref: /minix3/tests/lib/libc/arch/powerpc/exec_prot_support.c (revision 11be35a165022172ed3cea20f2b5df0307540b0e)
1*11be35a1SLionel Sambuc /*      $NetBSD: exec_prot_support.c,v 1.2 2012/03/16 08:51:47 matt Exp $ */
2*11be35a1SLionel Sambuc 
3*11be35a1SLionel Sambuc /*-
4*11be35a1SLionel Sambuc  * Copyright (c) 2012 The NetBSD Foundation, Inc.
5*11be35a1SLionel Sambuc  * All rights reserved.
6*11be35a1SLionel Sambuc  *
7*11be35a1SLionel Sambuc  * This code is derived from software contributed to The NetBSD Foundation
8*11be35a1SLionel Sambuc  * by Matt Thomas of 3am Software Foundry.
9*11be35a1SLionel Sambuc  *
10*11be35a1SLionel Sambuc  * Redistribution and use in source and binary forms, with or without
11*11be35a1SLionel Sambuc  * modification, are permitted provided that the following conditions
12*11be35a1SLionel Sambuc  * are met:
13*11be35a1SLionel Sambuc  * 1. Redistributions of source code must retain the above copyright
14*11be35a1SLionel Sambuc  *    notice, this list of conditions and the following disclaimer.
15*11be35a1SLionel Sambuc  * 2. Redistributions in binary form must reproduce the above copyright
16*11be35a1SLionel Sambuc  *    notice, this list of conditions and the following disclaimer in the
17*11be35a1SLionel Sambuc  *    documentation and/or other materials provided with the distribution.
18*11be35a1SLionel Sambuc  *
19*11be35a1SLionel Sambuc  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20*11be35a1SLionel Sambuc  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21*11be35a1SLionel Sambuc  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22*11be35a1SLionel Sambuc  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23*11be35a1SLionel Sambuc  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24*11be35a1SLionel Sambuc  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25*11be35a1SLionel Sambuc  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26*11be35a1SLionel Sambuc  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27*11be35a1SLionel Sambuc  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28*11be35a1SLionel Sambuc  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29*11be35a1SLionel Sambuc  * POSSIBILITY OF SUCH DAMAGE.
30*11be35a1SLionel Sambuc  */
31*11be35a1SLionel Sambuc 
32*11be35a1SLionel Sambuc #include <sys/cdefs.h>
33*11be35a1SLionel Sambuc __RCSID("$NetBSD: exec_prot_support.c,v 1.2 2012/03/16 08:51:47 matt Exp $");
34*11be35a1SLionel Sambuc 
35*11be35a1SLionel Sambuc #include "../../common/exec_prot.h"
36*11be35a1SLionel Sambuc 
37*11be35a1SLionel Sambuc #include <sys/sysctl.h>
38*11be35a1SLionel Sambuc 
39*11be35a1SLionel Sambuc int
exec_prot_support(void)40*11be35a1SLionel Sambuc exec_prot_support(void)
41*11be35a1SLionel Sambuc {
42*11be35a1SLionel Sambuc 	int execprot = 0;
43*11be35a1SLionel Sambuc 	size_t len = sizeof(execprot);
44*11be35a1SLionel Sambuc 
45*11be35a1SLionel Sambuc 	if (sysctlbyname("machdep.execprot", &execprot, &len, NULL, 0) < 0)
46*11be35a1SLionel Sambuc 		return NOTIMPL;
47*11be35a1SLionel Sambuc 
48*11be35a1SLionel Sambuc 	if (execprot)
49*11be35a1SLionel Sambuc 		return PERPAGE_XP;
50*11be35a1SLionel Sambuc 
51*11be35a1SLionel Sambuc 	return NO_XP;
52*11be35a1SLionel Sambuc }
53