bsd/sys/ucontext.h

   1 /*
   2  * Copyright (c) 2002-2005 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_OSREFERENCE_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
  10  * License may not be used to create, or enable the creation or
  11  * redistribution of, unlawful or unlicensed copies of an Apple operating
  12  * system, or to circumvent, violate, or enable the circumvention or
  13  * violation of, any terms of an Apple operating system software license
  14  * agreement.
  15  *
  16  * Please obtain a copy of the License at
  17  * http://www.opensource.apple.com/apsl/ and read it before using this
  18  * file.
  19  *
  20  * The Original Code and all software distributed under the License are
  21  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  22  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  23  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  24  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  25  * Please see the License for the specific language governing rights and
  26  * limitations under the License.
  27  *
  28  * @APPLE_LICENSE_OSREFERENCE_HEADER_END@
  29  */
  30
  31 #ifndef _SYS_UCONTEXT_H_
  32 #define _SYS_UCONTEXT_H_
  33
  34 #include <sys/cdefs.h>
  35 #include <sys/_types.h>
  36 #include <machine/ucontext.h>
  37
  38 #ifndef _SIGSET_T
  39 #define _SIGSET_T
  40 typedef __darwin_sigset_t       sigset_t;
  41 #endif
  42
  43 #ifndef _STACK_T
  44 #define _STACK_T
  45 typedef __darwin_stack_t        stack_t;
  46 #endif
  47
  48 #ifndef _UCONTEXT_T
  49 #define _UCONTEXT_T
  50 #ifndef _POSIX_C_SOURCE
  51 typedef struct ucontext         ucontext_t;
  52 #else /* _POSIX_C_SOURCE */
  53 typedef struct __darwin_ucontext ucontext_t;
  54 #endif /* _POSIX_C_SOURCE */
  55 #endif
  56
  57 #ifndef _POSIX_C_SOURCE
  58 #ifndef _UCONTEXT64_T
  59 #define _UCONTEXT64_T
  60 typedef struct ucontext64       ucontext64_t;
  61 #endif
  62 #endif /* _POSIX_C_SOURCE */
  63
  64 #ifdef KERNEL
  65 #include <machine/types.h>      /* user_addr_t, user_size_t */
  66
  67 #if __DARWIN_ALIGN_NATURAL
  68 #pragma options align=natural
  69 #endif
  70
  71 /* kernel representation of struct ucontext64 for 64 bit processes */
  72 struct user_ucontext64 {
  73         int                             uc_onstack;
  74         sigset_t                        uc_sigmask;     /* signal mask */
  75         struct user_sigaltstack         uc_stack;       /* stack */
  76         user_addr_t                     uc_link;        /* ucontext pointer */
  77         user_size_t                     uc_mcsize;      /* mcontext size */
  78         user_addr_t                     uc_mcontext64;  /* machine context */
  79 };
  80
  81 #if __DARWIN_ALIGN_NATURAL
  82 #pragma options align=reset
  83 #endif
  84
  85 typedef struct user_ucontext64 user_ucontext64_t;
  86 #endif  /* KERNEL */
  87
  88 #endif /* _SYS_UCONTEXT_H_ */