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      1 /*
      2  * This file is part of clock_adjtime strace test.
      3  *
      4  * Copyright (c) 2016 Dmitry V. Levin <ldv (at) altlinux.org>
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. The name of the author may not be used to endorse or promote products
     16  *    derived from this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     19  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     20  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     21  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     22  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     23  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     24  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     25  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     26  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     27  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     28  */
     29 
     30 #include "tests.h"
     31 #include <asm/unistd.h>
     32 
     33 #ifdef __NR_clock_adjtime
     34 
     35 # include <stdio.h>
     36 # include <time.h>
     37 # include <unistd.h>
     38 
     39 int
     40 main(void)
     41 {
     42 	long rc = syscall(__NR_clock_adjtime, CLOCK_MONOTONIC, NULL);
     43 	printf("clock_adjtime(CLOCK_MONOTONIC, NULL) = %ld %s (%m)\n",
     44 	       rc, errno2name());
     45 
     46 	void *efault = tail_alloc(1);
     47 
     48 	rc = syscall(__NR_clock_adjtime, CLOCK_REALTIME, efault);
     49 	printf("clock_adjtime(CLOCK_REALTIME, %p) = %ld %s (%m)\n",
     50 	       efault, rc, errno2name());
     51 
     52 	puts("+++ exited with 0 +++");
     53 	return 0;
     54 }
     55 
     56 #else
     57 
     58 SKIP_MAIN_UNDEFINED("__NR_clock_adjtime")
     59 
     60 #endif
     61