android13/external/ltp/testcases/kernel/syscalls/futex/futex_wait04.c

59 lines
1.6 KiB
C

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