GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: lib/libc/gen/getpagesize.c Lines: 3 10 30.0 %
Date: 2017-11-07 Branches: 1 6 16.7 %

Line Branch Exec Source
1
/*	$OpenBSD: getpagesize.c,v 1.9 2016/03/20 02:32:40 guenther Exp $ */
2
/*
3
 * Copyright (c) 1989, 1993
4
 *	The Regents of the University of California.  All rights reserved.
5
 *
6
 * Redistribution and use in source and binary forms, with or without
7
 * modification, are permitted provided that the following conditions
8
 * are met:
9
 * 1. Redistributions of source code must retain the above copyright
10
 *    notice, this list of conditions and the following disclaimer.
11
 * 2. Redistributions in binary form must reproduce the above copyright
12
 *    notice, this list of conditions and the following disclaimer in the
13
 *    documentation and/or other materials provided with the distribution.
14
 * 3. Neither the name of the University nor the names of its contributors
15
 *    may be used to endorse or promote products derived from this software
16
 *    without specific prior written permission.
17
 *
18
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
19
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
22
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28
 * SUCH DAMAGE.
29
 */
30
31
#include <sys/types.h>
32
#include <sys/sysctl.h>
33
#include <unistd.h>
34
35
int
36
getpagesize(void)
37
{
38
3980110
	if (_pagesize == 0) {
39
		int mib[2];
40
		size_t size;
41
42
		mib[0] = CTL_HW;
43
		mib[1] = HW_PAGESIZE;
44
		size = sizeof _pagesize;
45
		if (sysctl(mib, 2, &_pagesize, &size, NULL, 0) == -1)
46
			return (-1);
47
	}
48
1990055
	return (_pagesize);
49
1990055
}
50
DEF_WEAK(getpagesize);