56 lines
1.2 KiB
C
56 lines
1.2 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (c) 2020 Viresh Kumar <viresh.kumar@linaro.org>
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*/
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/*\
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* [Description]
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*
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* Cross verify the _high fields being set to 0 by the kernel.
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*/
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#include <sys/shm.h>
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#include "lapi/shmbuf.h"
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#include "libnewipc.h"
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#include "tst_test.h"
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#include "tst_safe_sysv_ipc.h"
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#ifdef HAVE_SHMID64_DS_TIME_HIGH
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static void run(void)
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{
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struct shmid64_ds buf_ds = {
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.shm_atime_high = 0x0A0A,
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.shm_dtime_high = 0x0A0A,
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.shm_ctime_high = 0x0A0A,
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};
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int shmid;
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key_t key;
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/* get an IPC resource key */
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key = GETIPCKEY();
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shmid = shmget(key, SHM_SIZE, IPC_CREAT | IPC_EXCL | SHM_RW);
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if (shmid == -1)
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tst_brk(TBROK | TERRNO, "couldn't create shared memory segment");
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TEST(shmctl(shmid, IPC_STAT, (struct shmid_ds *)&buf_ds));
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if (TST_RET == -1)
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tst_brk(TFAIL | TTERRNO, "shmctl() failed");
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if (buf_ds.shm_atime_high || buf_ds.shm_dtime_high || buf_ds.shm_ctime_high)
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tst_res(TFAIL, "time_high fields aren't cleared by the kernel");
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else
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tst_res(TPASS, "time_high fields cleared by the kernel");
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SAFE_SHMCTL(shmid, IPC_RMID, NULL);
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}
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static struct tst_test test = {
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.test_all = run,
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.needs_tmpdir = 1,
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};
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#else
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TST_TEST_TCONF("test requires struct shmid64_ds to have the time_high fields");
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#endif
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