1 /*
2 * Copyright (c) 2007 Ulrich Drepper <drepper@redhat.com>
3 * Copyright (c) 2008-2015 Dmitry V. Levin <ldv@altlinux.org>
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29 #include "defs.h"
30 #include <fcntl.h>
31 #ifdef HAVE_SYS_EVENTFD_H
32 # include <sys/eventfd.h>
33 #endif
34
35 #include "xlat/efd_flags.h"
36
37 static int
do_eventfd(struct tcb * tcp,int flags_arg)38 do_eventfd(struct tcb *tcp, int flags_arg)
39 {
40 tprintf("%u", (unsigned int) tcp->u_arg[0]);
41 if (flags_arg >= 0) {
42 tprints(", ");
43 printflags(efd_flags, tcp->u_arg[flags_arg], "EFD_???");
44 }
45
46 return RVAL_DECODED | RVAL_FD;
47 }
48
SYS_FUNC(eventfd)49 SYS_FUNC(eventfd)
50 {
51 return do_eventfd(tcp, -1);
52 }
53
SYS_FUNC(eventfd2)54 SYS_FUNC(eventfd2)
55 {
56 return do_eventfd(tcp, 1);
57 }
58