xnu-1228.12.14.tar.gz
[apple/xnu.git] / bsd / sys / ucontext.h
1 /*
2 * Copyright (c) 2002-2006 Apple Computer, Inc. All rights reserved.
3 *
4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5 *
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. The rights granted to you under the License
10 * may not be used to create, or enable the creation or redistribution of,
11 * unlawful or unlicensed copies of an Apple operating system, or to
12 * circumvent, violate, or enable the circumvention or violation of, any
13 * terms of an Apple operating system software license agreement.
14 *
15 * Please obtain a copy of the License at
16 * http://www.opensource.apple.com/apsl/ and read it before using this file.
17 *
18 * The Original Code and all software distributed under the License are
19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23 * Please see the License for the specific language governing rights and
24 * limitations under the License.
25 *
26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27 */
28
29 #ifndef _SYS_UCONTEXT_H_
30 #define _SYS_UCONTEXT_H_
31
32 #include <sys/cdefs.h>
33 #include <sys/_types.h>
34
35 #define __need_mcontext_t
36 #define __need_stack_t
37 #define __need_ucontext_t
38 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
39 #if defined(__ppc__) || defined(__ppc64__)
40 #define __need_mcontext64_t
41 #define __need_ucontext64_t
42 #endif /* __ppc__|| __ppc64__ */
43 #endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */
44 #include <sys/_structs.h>
45
46 #ifndef _SIGSET_T
47 #define _SIGSET_T
48 typedef __darwin_sigset_t sigset_t;
49 #endif
50
51 #ifdef KERNEL
52 #include <machine/types.h> /* user_addr_t, user_size_t */
53
54 /* kernel representation of struct ucontext64 for 64 bit processes */
55 struct user_ucontext64 {
56 int uc_onstack;
57 sigset_t uc_sigmask; /* signal mask */
58 struct user_sigaltstack uc_stack; /* stack */
59 user_addr_t uc_link; /* ucontext pointer */
60 user_size_t uc_mcsize; /* mcontext size */
61 user_addr_t uc_mcontext64; /* machine context */
62 };
63
64 typedef struct user_ucontext64 user_ucontext64_t;
65 #endif /* KERNEL */
66
67 #endif /* _SYS_UCONTEXT_H_ */