xref: /illumos-gate/usr/src/uts/common/sys/libc_kernel.h (revision 2d6eb4a5e0a47d30189497241345dc5466bb68ab)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 
22 /*
23  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #ifndef _SYS_LIBC_KERNEL_H
28 #define	_SYS_LIBC_KERNEL_H
29 
30 /*
31  * This file contains definitions for miscellaneous consolidation-private
32  * interfaces that are private, exclusively between libc and the kernel.
33  * These definitions are for implementation details that can change at
34  * any time, even in a patch.  Applications should never see this file.
35  */
36 
37 #ifdef __cplusplus
38 extern "C" {
39 #endif
40 
41 /*
42  * A vfork() child that calls _exit(_EVAPORATE) without having performed
43  * an execve() will disappear without a trace, just as though the parent
44  * had set the disposition of the SIGCHLD signal to be ignored.  This is
45  * used by the the posix_spawn() implementation in libc.
46  */
47 #define	_EVAPORATE	0xffff0000
48 
49 #ifdef __cplusplus
50 }
51 #endif
52 
53 #endif /* _SYS_LIBC_KERNEL_H */
54