59 lines
1.6 KiB
C
59 lines
1.6 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (C) 2015 Cyril Hrubis <chrubis@suse.cz>
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*
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* Based on futextest (futext_wait_uninitialized_heap.c)
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* written by KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
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*
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* Wait on uninitialized heap. It shold be zero and FUTEX_WAIT should return
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* immediately. This test tests zero page handling in futex code.
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*/
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#include <errno.h>
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#include "futextest.h"
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static struct futex_test_variants variants[] = {
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#if (__NR_futex != __LTP__NR_INVALID_SYSCALL)
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{ .fntype = FUTEX_FN_FUTEX, .tstype = TST_KERN_OLD_TIMESPEC, .desc = "syscall with old kernel spec"},
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#endif
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#if (__NR_futex_time64 != __LTP__NR_INVALID_SYSCALL)
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{ .fntype = FUTEX_FN_FUTEX64, .tstype = TST_KERN_TIMESPEC, .desc = "syscall time64 with kernel spec"},
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#endif
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};
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static void run(void)
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{
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struct futex_test_variants *tv = &variants[tst_variant];
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struct tst_ts to = tst_ts_from_ns(tv->tstype, 10000);
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size_t pagesize = getpagesize();
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void *buf;
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int res;
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buf = SAFE_MMAP(NULL, pagesize, PROT_READ|PROT_WRITE,
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MAP_PRIVATE|MAP_ANONYMOUS, 0, 0);
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res = futex_wait(tv->fntype, buf, 1, &to, 0);
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if (res == -1 && errno == EWOULDBLOCK)
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tst_res(TPASS | TERRNO, "futex_wait() returned %i", res);
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else
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tst_res(TFAIL | TERRNO, "futex_wait() returned %i", res);
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SAFE_MUNMAP(buf, pagesize);
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}
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static void setup(void)
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{
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struct futex_test_variants *tv = &variants[tst_variant];
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tst_res(TINFO, "Testing variant: %s", tv->desc);
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futex_supported_by_kernel(tv->fntype);
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}
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static struct tst_test test = {
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.setup = setup,
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.test_all = run,
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.test_variants = ARRAY_SIZE(variants),
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};
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