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 46 ATF_TC(posix_memalign_basic); 47 ATF_TC_HEAD(posix_memalign_basic, tc) 48 { 49 atf_tc_set_md_var(tc, "descr", "Checks posix_memalign(3)"); 50 } 51 ATF_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 85 ATF_TC(aligned_alloc_basic); 86 ATF_TC_HEAD(aligned_alloc_basic, tc) 87 { 88 atf_tc_set_md_var(tc, "descr", "Checks aligned_alloc(3)"); 89 } 90 ATF_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 } 143 144 145 ATF_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