bsd/i386/ucontext.h

   1 /*
   2  * Copyright (c) 2002 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 _I386_UCONTEXT_H_
  30 #define _I386_UCONTEXT_H_
  31
  32
  33 #include <sys/appleapiopts.h>
  34 #include <mach/thread_status.h>
  35
  36 #ifndef _POSIX_C_SOURCE
  37 struct mcontext
  38 #else /* _POSIX_C_SOURCE */
  39 struct __darwin_mcontext
  40 #endif /* _POSIX_C_SOURCE */
  41 {
  42 #if __LP64__
  43         x86_exception_state64_t es;
  44         x86_thread_state64_t    ss;
  45         x86_float_state64_t     fs;
  46 #else
  47         x86_exception_state32_t es;
  48         x86_thread_state32_t    ss;
  49         x86_float_state32_t     fs;
  50 #endif
  51 };
  52
  53 #ifndef _POSIX_C_SOURCE
  54 #if __LP64__
  55 #define I386_MCONTEXT_SIZE      (x86_THREAD_STATE64_COUNT + x86_FLOAT_STATE64_COUNT + x86_EXCEPTION_STATE64_COUNT) * sizeof(int)
  56 #else
  57 #define I386_MCONTEXT_SIZE      (x86_THREAD_STATE32_COUNT + x86_FLOAT_STATE32_COUNT + x86_EXCEPTION_STATE32_COUNT) * sizeof(int)
  58 #endif
  59 #endif /* _POSIX_C_SOURCE */
  60
  61 #ifndef _MCONTEXT_T
  62 #define _MCONTEXT_T
  63 typedef __darwin_mcontext_t     mcontext_t;
  64 #endif
  65
  66
  67 #ifdef XNU_KERNEL_PRIVATE
  68 struct mcontext64 {
  69         x86_exception_state64_t es;
  70         x86_thread_state64_t    ss;
  71         x86_float_state64_t     fs;
  72 };
  73
  74 struct mcontext32 {
  75         x86_exception_state32_t es;
  76         x86_thread_state32_t    ss;
  77         x86_float_state32_t     fs;
  78 };
  79 #endif
  80
  81
  82 #endif /* _I386_UCONTEXT_H_ */