e3dc1c5e34
- posix_memalign() does not set errno, it returns 0 or an error number (maybe a jemalloc() vs. phkmalloc() issue, but also how the opengroup documents it.) - since "align" must be >= sizeof(void *), expect to fail align=4 on LP64 systems. - while i'm here, add a test for align=2 failing everywhere.
87 lines
2.7 KiB
C
87 lines
2.7 KiB
C
/* $NetBSD: posix_memalign.c,v 1.3 2010/01/26 22:14:01 mrg Exp $ */
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/*-
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* Copyright (c) 2008 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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*
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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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__RCSID("$NetBSD: posix_memalign.c,v 1.3 2010/01/26 22:14:01 mrg Exp $");
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#include <stdint.h>
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#include <stdlib.h>
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#include <errno.h>
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#include <err.h>
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#include <stdbool.h>
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#ifdef _LP64
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#define FOURFAIL true
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#else
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#define FOURFAIL false
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#endif
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struct {
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size_t size;
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size_t align;
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bool fail;
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} testlist[] = {
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{ 1, 512, false, },
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{ 2, 1024, false, },
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{ 3, 16, false, },
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{ 4, 32, false, },
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{ 10, 64, false, },
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{ 100, 4, FOURFAIL, },
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{ 10, 2, true, },
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{ 16384, 2048, false, },
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};
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int
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main(int argc, char *argv[])
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{
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size_t i;
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void *p;
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int error;
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for (i = 0; i < __arraycount(testlist); i++) {
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error = posix_memalign(&p, testlist[i].align, testlist[i].size);
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if (testlist[i].fail == false) {
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if (error != 0) {
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errno = error;
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err(1, "a=%zu, s=%zu", testlist[i].align, testlist[i].size);
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}
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if (((intptr_t)p) & (testlist[i].align - 1))
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errx(1, "p=%p a=%zu, s=%zu", p, testlist[i].align, testlist[i].size);
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} else if (error == 0)
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errx(1, "didn't fail: a=%zu, s=%zu", testlist[i].align, testlist[i].size);
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}
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/* This can fail */
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if (posix_memalign(&p, 32768, 16) == 0)
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if (((intptr_t)p) & (32768 - 1))
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errx(1, "p=%p a=%zu, s=%zu", p, 32768, 16);
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return 0;
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}
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