ucontext.h   [plain text]


/*
 * Copyright (c) 2002-2006 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
 * 
 * This file contains Original Code and/or Modifications of Original Code
 * as defined in and that are subject to the Apple Public Source License
 * Version 2.0 (the 'License'). You may not use this file except in
 * compliance with the License. The rights granted to you under the License
 * may not be used to create, or enable the creation or redistribution of,
 * unlawful or unlicensed copies of an Apple operating system, or to
 * circumvent, violate, or enable the circumvention or violation of, any
 * terms of an Apple operating system software license agreement.
 * 
 * Please obtain a copy of the License at
 * http://www.opensource.apple.com/apsl/ and read it before using this file.
 * 
 * The Original Code and all software distributed under the License are
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
 * Please see the License for the specific language governing rights and
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 * 
 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
 */

#ifndef _SYS_UCONTEXT_H_
#define _SYS_UCONTEXT_H_

#include <sys/cdefs.h>
#include <sys/_types.h>

#define __need_mcontext_t
#define __need_stack_t
#define __need_ucontext_t
#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
#if defined(__ppc__) || defined(__ppc64__)
#define __need_mcontext64_t
#define __need_ucontext64_t
#endif /* __ppc__|| __ppc64__  */ 
#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */
#include <sys/_structs.h>

#ifndef _SIGSET_T
#define _SIGSET_T
typedef __darwin_sigset_t	sigset_t;
#endif

#ifdef KERNEL
#include <machine/types.h>	/* user_addr_t, user_size_t */

/* kernel representation of struct ucontext64 for 64 bit processes */
struct user_ucontext64 {
	int				uc_onstack;
	sigset_t			uc_sigmask;	/* signal mask */
	struct user_sigaltstack 	uc_stack;	/* stack */
	user_addr_t			uc_link;	/* ucontext pointer */
	user_size_t			uc_mcsize;	/* mcontext size */
	user_addr_t			uc_mcontext64;	/* machine context */
};

typedef struct user_ucontext64 user_ucontext64_t;
#endif	/* KERNEL */

#endif /* _SYS_UCONTEXT_H_ */