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 typedef struct user_ucontext64 {
  56         int                             uc_onstack;
  57         sigset_t                        uc_sigmask;     /* signal mask */
  58         struct user64_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 } user_ucontext64_t;
  63
  64 typedef struct user_ucontext32 {
  65         int                             uc_onstack;
  66         sigset_t                        uc_sigmask;     /* signal mask */
  67         struct user32_sigaltstack       uc_stack;       /* stack */
  68         user32_addr_t                   uc_link;        /* ucontext pointer */
  69         user32_size_t                   uc_mcsize;      /* mcontext size */
  70         user32_addr_t                   uc_mcontext;    /* machine context */
  71 } user_ucontext32_t;
  72
  73 #endif  /* KERNEL */
  74
  75 #endif /* _SYS_UCONTEXT_H_ */