glibc/sysdeps/unix/sysv/linux/tst-clone.c

61 lines
1.6 KiB
C

/* Test for proper error/errno handling in clone.
Copyright (C) 2006-2020 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
/* BZ #2386 */
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sched.h>
#ifdef __ia64__
extern int __clone2 (int (*__fn) (void *__arg), void *__child_stack_base,
size_t __child_stack_size, int __flags, void *__arg, ...);
#endif
int child_fn(void *arg)
{
puts ("FAIL: in child_fn(); should not be here");
exit(1);
}
static int
do_test (void)
{
int result;
#ifdef __ia64__
result = __clone2 (child_fn, NULL, 0, 0, NULL, NULL, NULL);
#else
result = clone (child_fn, NULL, 0, NULL);
#endif
if (errno != EINVAL || result != -1)
{
printf ("FAIL: clone()=%d (wanted -1) errno=%d (wanted %d)\n",
result, errno, EINVAL);
return 1;
}
puts ("All OK");
return 0;
}
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"