A simple test for mincore(2).
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jruoho
parent
0901655f4f
commit
b14fc1879c
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@ -1,4 +1,4 @@
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# $NetBSD: mi,v 1.342 2011/06/01 19:45:08 tron Exp $
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# $NetBSD: mi,v 1.343 2011/06/02 10:48:55 jruoho Exp $
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#
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# Note: don't delete entries from here - mark them as "obsolete" instead.
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#
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@ -617,6 +617,7 @@
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./usr/libdata/debug/usr/tests/syscall/t_gettimeofday.debug tests-syscall-debug debug,atf
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./usr/libdata/debug/usr/tests/syscall/t_itimer.debug tests-syscall-debug debug,atf
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./usr/libdata/debug/usr/tests/syscall/t_kill.debug tests-syscall-debug debug,atf
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./usr/libdata/debug/usr/tests/syscall/t_mincore.debug tests-syscall-debug debug,atf
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./usr/libdata/debug/usr/tests/syscall/t_mmap.debug tests-syscall-debug debug,atf
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./usr/libdata/debug/usr/tests/syscall/t_mprotect.debug tests-syscall-debug debug,atf
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./usr/libdata/debug/usr/tests/syscall/t_msync.debug tests-syscall-debug debug,atf
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@ -2323,6 +2324,7 @@
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./usr/tests/syscall/t_gettimeofday tests-syscall-tests atf
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./usr/tests/syscall/t_itimer tests-syscall-tests atf
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./usr/tests/syscall/t_kill tests-syscall-tests atf
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./usr/tests/syscall/t_mincore tests-syscall-tests atf
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./usr/tests/syscall/t_mmap tests-syscall-tests atf
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./usr/tests/syscall/t_mprotect tests-syscall-tests atf
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./usr/tests/syscall/t_msync tests-syscall-tests atf
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@ -1,4 +1,4 @@
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# $NetBSD: Makefile,v 1.29 2011/06/01 19:43:10 tron Exp $
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# $NetBSD: Makefile,v 1.30 2011/06/02 10:48:56 jruoho Exp $
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.include <bsd.own.mk>
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@ -6,8 +6,10 @@ TESTSDIR= ${TESTSBASE}/syscall
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TESTS_C+= t_access t_cmsg t_dup t_fsync
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TESTS_C+= t_getgroups t_getpid t_getrusage t_getsid t_gettimeofday
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TESTS_C+= t_itimer t_kill t_mmap t_mprotect t_msync t_nanosleep t_poll
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TESTS_C+= t_pollts t_pselect t_setrlimit t_setuid t_timer t_umask
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TESTS_C+= t_itimer t_kill
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TESTS_C+= t_mincore t_mmap t_mprotect t_msync t_nanosleep
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TESTS_C+= t_poll t_pollts t_pselect
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TESTS_C+= t_setrlimit t_setuid t_timer t_umask
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LDADD.t_getpid+= -lpthread
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LDADD.t_timer+= -lpthread
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@ -0,0 +1,189 @@
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/* $NetBSD: t_mincore.c,v 1.1 2011/06/02 10:48:55 jruoho Exp $ */
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/*-
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* Copyright (c) 2011 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 Jukka Ruohonen.
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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: t_mincore.c,v 1.1 2011/06/02 10:48:55 jruoho Exp $");
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#include <sys/mman.h>
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#include <atf-c.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <stdlib.h>
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#include <unistd.h>
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static long page = 0;
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static const char path[] = "mincore";
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ATF_TC(mincore_err);
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ATF_TC_HEAD(mincore_err, tc)
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{
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atf_tc_set_md_var(tc, "descr", "Test errors from mincore(2)");
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}
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ATF_TC_BODY(mincore_err, tc)
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{
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char *map, *vec;
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map = mmap(NULL, page, PROT_WRITE, MAP_ANON | MAP_PRIVATE, -1, 0);
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vec = malloc(page);
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ATF_REQUIRE(vec != NULL);
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ATF_REQUIRE(map != MAP_FAILED);
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errno = 0;
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ATF_REQUIRE_ERRNO(EINVAL, mincore(map, 0, vec) == -1);
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errno = 0;
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ATF_REQUIRE_ERRNO(ENOMEM, mincore(0, page, vec) == -1);
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errno = 0;
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ATF_REQUIRE_ERRNO(EFAULT, mincore(map, page, (void *)-1) == -1);
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free(vec);
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ATF_REQUIRE(munmap(map, page) == 0);
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}
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ATF_TC_WITH_CLEANUP(mincore_incore);
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ATF_TC_HEAD(mincore_incore, tc)
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{
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atf_tc_set_md_var(tc, "descr", "Test that mincore(2) works");
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}
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ATF_TC_BODY(mincore_incore, tc)
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{
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char *buf, *vec, *map = MAP_FAILED;
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const char *str = NULL;
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const size_t n = 3;
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ssize_t tot;
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int fd, rv;
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size_t i, j;
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/*
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* Create a temporary file, write
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* few pages to it, and map the file.
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*/
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buf = calloc(n, page);
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vec = calloc(n, page);
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if (buf == NULL || vec == NULL)
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return;
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for (i = 0; i < (size_t)page * n; i++)
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buf[i] = 'x';
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fd = open(path, O_RDWR | O_CREAT, 0600);
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if (fd < 0) {
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str = "failed to open";
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goto out;
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}
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tot = 0;
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while (tot < page * (long)n) {
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rv = write(fd, buf, sizeof(buf));
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if (rv < 0) {
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str = "failed to write";
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goto out;
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}
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tot += rv;
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}
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map = mmap(NULL, page * n, PROT_READ | PROT_WRITE,
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MAP_FILE | MAP_PRIVATE, fd, 0);
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if (map == MAP_FAILED) {
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str = "failed to map";
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goto out;
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}
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/*
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* Lock the mapping such that only
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* in-core page status is returned.
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*/
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if (mlock(map, page * n) != 0) {
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str = "failed to lock";
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goto out;
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}
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if (mincore(map, page * n, vec) != 0) {
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str = "mincore failed";
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goto out;
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}
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/*
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* Check that the in-core pages
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* match the locked pages.
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*/
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for (i = j = 0; i < (size_t)page * n; i++) {
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if (vec[i] != 0)
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j++;
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}
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if (j != n)
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str = "mismatch of in-core pages";
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out:
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free(buf);
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free(vec);
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(void)close(fd);
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(void)unlink(path);
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if (map != MAP_FAILED) {
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(void)munlock(map, page);
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(void)munmap(map, page);
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}
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if (str != NULL)
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atf_tc_fail(str);
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}
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ATF_TC_CLEANUP(mincore_incore, tc)
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{
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(void)unlink(path);
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}
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ATF_TP_ADD_TCS(tp)
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{
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page = sysconf(_SC_PAGESIZE);
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ATF_REQUIRE(page >= 0);
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ATF_TP_ADD_TC(tp, mincore_err);
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ATF_TP_ADD_TC(tp, mincore_incore);
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return atf_no_error();
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}
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