t_posix_memalign.c revision 313498 
1/*	$NetBSD: t_posix_memalign.c,v 1.4 2015/11/07 17:35:31 nros Exp $ */
2
3/*-
4 * Copyright (c) 2008 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Christos Zoulas.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#include <sys/cdefs.h>
33__COPYRIGHT("@(#) Copyright (c) 2008\
34 The NetBSD Foundation, inc. All rights reserved.");
35__RCSID("$NetBSD: t_posix_memalign.c,v 1.4 2015/11/07 17:35:31 nros Exp $");
36
37#include <atf-c.h>
38
39#include <errno.h>
40#include <stdbool.h>
41#include <stdint.h>
42#include <stdio.h>
43#include <stdlib.h>
44#include <string.h>
45
46ATF_TC(posix_memalign_basic);
47ATF_TC_HEAD(posix_memalign_basic, tc)
48{
49	atf_tc_set_md_var(tc, "descr", "Checks posix_memalign(3)");
50}
51ATF_TC_BODY(posix_memalign_basic, tc)
52{
53	static const size_t size[] = {
54		1, 2, 3, 4, 10, 100, 16384, 32768, 65536
55	};
56	static const size_t align[] = {
57		512, 1024, 16, 32, 64, 4, 2048, 16, 2
58	};
59
60	size_t i;
61	void *p;
62
63	for (i = 0; i < __arraycount(size); i++) {
64		int ret;
65		p = (void*)0x1;
66
67		(void)printf("Checking posix_memalign(&p, %zu, %zu)...\n",
68			align[i], size[i]);
69		ret = posix_memalign(&p, align[i], size[i]);
70
71		if ( align[i] < sizeof(void *))
72			ATF_REQUIRE_EQ_MSG(ret, EINVAL,
73			    "posix_memalign: %s", strerror(ret));
74		else {
75			ATF_REQUIRE_EQ_MSG(ret, 0,
76			    "posix_memalign: %s", strerror(ret));
77			ATF_REQUIRE_EQ_MSG(((intptr_t)p) & (align[i] - 1), 0,
78			    "p = %p", p);
79			free(p);
80		}
81	}
82}
83
84
85ATF_TC(aligned_alloc_basic);
86ATF_TC_HEAD(aligned_alloc_basic, tc)
87{
88	atf_tc_set_md_var(tc, "descr", "Checks aligned_alloc(3)");
89}
90ATF_TC_BODY(aligned_alloc_basic, tc)
91{
92	static const size_t size[] = {
93		1, 2, 3, 4, 10, 100, 16384, 32768, 65536, 10000, 0
94	};
95	static const size_t align[] = {
96		512, 1024, 16, 32, 64, 4, 2048, 16, 2, 2048, 0
97	};
98
99	size_t i;
100	void *p;
101
102	for (i = 0; i < __arraycount(size); i++) {
103		(void)printf("Checking aligned_alloc(%zu, %zu)...\n",
104		    align[i], size[i]);
105		p = aligned_alloc(align[i], size[i]);
106                if (p == NULL) {
107			if (align[i] == 0 || ((align[i] - 1) & align[i]) != 0 ||
108			    size[i] % align[i] != 0) {
109				ATF_REQUIRE_EQ_MSG(errno, EINVAL,
110				    "aligned_alloc: %s", strerror(errno));
111			}
112			else {
113				ATF_REQUIRE_EQ_MSG(errno, ENOMEM,
114				    "aligned_alloc: %s", strerror(errno));
115			}
116                }
117		else {
118			ATF_REQUIRE_EQ_MSG(align[i] == 0, false,
119			    "aligned_alloc: success when alignment was not "
120			    "a power of 2");
121			ATF_REQUIRE_EQ_MSG((align[i] - 1) & align[i], 0,
122			    "aligned_alloc: success when alignment was not "
123			    "a power of 2");
124#ifdef __NetBSD__
125			/*
126			 * NetBSD-specific invariant
127			 *
128			 * From aligned_alloc(3) on FreeBSD:
129			 *
130			 * Behavior is undefined if size is not an integral
131			 * multiple of alignment.
132			 */
133			ATF_REQUIRE_EQ_MSG(size[i] % align[i], 0,
134			    "aligned_alloc: success when size was not an "
135			    "integer multiple of alignment");
136#endif
137			ATF_REQUIRE_EQ_MSG(((intptr_t)p) & (align[i] - 1), 0,
138			    "p = %p", p);
139			free(p);
140		}
141	}
142}
143
144
145ATF_TP_ADD_TCS(tp)
146{
147	ATF_TP_ADD_TC(tp, posix_memalign_basic);
148        ATF_TP_ADD_TC(tp, aligned_alloc_basic);
149
150	return atf_no_error();
151}
152