bsd/sys/ucontext.h

   1 /*
   2  * Copyright (c) 2002-2005 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 #include <machine/ucontext.h>
  35
  36 #ifndef _SIGSET_T
  37 #define _SIGSET_T
  38 typedef __darwin_sigset_t       sigset_t;
  39 #endif
  40
  41 #ifndef _STACK_T
  42 #define _STACK_T
  43 typedef __darwin_stack_t        stack_t;
  44 #endif
  45
  46 #ifndef _UCONTEXT_T
  47 #define _UCONTEXT_T
  48 #ifndef _POSIX_C_SOURCE
  49 typedef struct ucontext         ucontext_t;
  50 #else /* _POSIX_C_SOURCE */
  51 typedef struct __darwin_ucontext ucontext_t;
  52 #endif /* _POSIX_C_SOURCE */
  53 #endif
  54
  55 #ifndef _POSIX_C_SOURCE
  56 #ifndef _UCONTEXT64_T
  57 #define _UCONTEXT64_T
  58 typedef struct ucontext64       ucontext64_t;
  59 #endif
  60 #endif /* _POSIX_C_SOURCE */
  61
  62 #ifdef KERNEL
  63 #include <machine/types.h>      /* user_addr_t, user_size_t */
  64
  65 #if __DARWIN_ALIGN_NATURAL
  66 #pragma options align=natural
  67 #endif
  68
  69 /* kernel representation of struct ucontext64 for 64 bit processes */
  70 struct user_ucontext64 {
  71         int                             uc_onstack;
  72         sigset_t                        uc_sigmask;     /* signal mask */
  73         struct user_sigaltstack         uc_stack;       /* stack */
  74         user_addr_t                     uc_link;        /* ucontext pointer */
  75         user_size_t                     uc_mcsize;      /* mcontext size */
  76         user_addr_t                     uc_mcontext64;  /* machine context */
  77 };
  78
  79 #if __DARWIN_ALIGN_NATURAL
  80 #pragma options align=reset
  81 #endif
  82
  83 typedef struct user_ucontext64 user_ucontext64_t;
  84 #endif  /* KERNEL */
  85
  86 #endif /* _SYS_UCONTEXT_H_ */