bsd/i386/ucontext.h

   1 /*
   2  * Copyright (c) 2002 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 _I386_UCONTEXT_H_
  32 #define _I386_UCONTEXT_H_
  33
  34
  35 #include <sys/appleapiopts.h>
  36 #include <mach/thread_status.h>
  37
  38 #ifndef _POSIX_C_SOURCE
  39 struct mcontext
  40 #else /* _POSIX_C_SOURCE */
  41 struct __darwin_mcontext
  42 #endif /* _POSIX_C_SOURCE */
  43 {
  44 #if __LP64__
  45         x86_exception_state64_t es;
  46         x86_thread_state64_t    ss;
  47         x86_float_state64_t     fs;
  48 #else
  49         x86_exception_state32_t es;
  50         x86_thread_state32_t    ss;
  51         x86_float_state32_t     fs;
  52 #endif
  53 };
  54
  55 #ifndef _POSIX_C_SOURCE
  56 #if __LP64__
  57 #define I386_MCONTEXT_SIZE      (x86_THREAD_STATE64_COUNT + x86_FLOAT_STATE64_COUNT + x86_EXCEPTION_STATE64_COUNT) * sizeof(int)
  58 #else
  59 #define I386_MCONTEXT_SIZE      (x86_THREAD_STATE32_COUNT + x86_FLOAT_STATE32_COUNT + x86_EXCEPTION_STATE32_COUNT) * sizeof(int)
  60 #endif
  61 #endif /* _POSIX_C_SOURCE */
  62
  63 #ifndef _MCONTEXT_T
  64 #define _MCONTEXT_T
  65 typedef __darwin_mcontext_t     mcontext_t;
  66 #endif
  67
  68
  69 #ifdef XNU_KERNEL_PRIVATE
  70 struct mcontext64 {
  71         x86_exception_state64_t es;
  72         x86_thread_state64_t    ss;
  73         x86_float_state64_t     fs;
  74 };
  75
  76 struct mcontext32 {
  77         x86_exception_state32_t es;
  78         x86_thread_state32_t    ss;
  79         x86_float_state32_t     fs;
  80 };
  81 #endif
  82
  83
  84 #endif /* _I386_UCONTEXT_H_ */