bsd/sys/ucontext.h

   1 /*
   2  * Copyright (c) 2002-2005 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_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. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23
  24 #ifndef _SYS_UCONTEXT_H_
  25 #define _SYS_UCONTEXT_H_
  26
  27 #include <sys/cdefs.h>
  28 #include <sys/_types.h>
  29 #include <machine/ucontext.h>
  30
  31 #ifndef _SIGSET_T
  32 #define _SIGSET_T
  33 typedef __darwin_sigset_t       sigset_t;
  34 #endif
  35
  36 #ifndef _STACK_T
  37 #define _STACK_T
  38 typedef __darwin_stack_t        stack_t;
  39 #endif
  40
  41 #ifndef _UCONTEXT_T
  42 #define _UCONTEXT_T
  43 #ifndef _POSIX_C_SOURCE
  44 typedef struct ucontext         ucontext_t;
  45 #else /* _POSIX_C_SOURCE */
  46 typedef struct __darwin_ucontext ucontext_t;
  47 #endif /* _POSIX_C_SOURCE */
  48 #endif
  49
  50 #ifndef _POSIX_C_SOURCE
  51 #ifndef _UCONTEXT64_T
  52 #define _UCONTEXT64_T
  53 typedef struct ucontext64       ucontext64_t;
  54 #endif
  55 #endif /* _POSIX_C_SOURCE */
  56
  57 #ifdef KERNEL
  58 #include <machine/types.h>      /* user_addr_t, user_size_t */
  59
  60 #if __DARWIN_ALIGN_NATURAL
  61 #pragma options align=natural
  62 #endif
  63
  64 /* kernel representation of struct ucontext64 for 64 bit processes */
  65 struct user_ucontext64 {
  66         int                             uc_onstack;
  67         sigset_t                        uc_sigmask;     /* signal mask */
  68         struct user_sigaltstack         uc_stack;       /* stack */
  69         user_addr_t                     uc_link;        /* ucontext pointer */
  70         user_size_t                     uc_mcsize;      /* mcontext size */
  71         user_addr_t                     uc_mcontext64;  /* machine context */
  72 };
  73
  74 #if __DARWIN_ALIGN_NATURAL
  75 #pragma options align=reset
  76 #endif
  77
  78 typedef struct user_ucontext64 user_ucontext64_t;
  79 #endif  /* KERNEL */
  80
  81 #endif /* _SYS_UCONTEXT_H_ */