bsd/i386/ucontext.h

   1 /*
   2  * Copyright (c) 2002 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * The contents of this file constitute Original Code as defined in and
   7  * are subject to the Apple Public Source License Version 1.1 (the
   8  * "License").  You may not use this file except in compliance with the
   9  * License.  Please obtain a copy of the License at
  10  * http://www.apple.com/publicsource and read it before using this file.
  11  *
  12  * This Original Code and all software distributed under the License are
  13  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  14  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  15  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  17  * License for the specific language governing rights and limitations
  18  * under the License.
  19  *
  20  * @APPLE_LICENSE_HEADER_END@
  21  */
  22
  23 #ifndef _I386_UCONTEXT_H_
  24 #define _I386_UCONTEXT_H_
  25
  26
  27 #include <sys/appleapiopts.h>
  28 #include <mach/thread_status.h>
  29
  30 #ifndef _POSIX_C_SOURCE
  31 struct mcontext
  32 #else /* _POSIX_C_SOURCE */
  33 struct __darwin_mcontext
  34 #endif /* _POSIX_C_SOURCE */
  35 {
  36 #if __LP64__
  37         x86_exception_state64_t es;
  38         x86_thread_state64_t    ss;
  39         x86_float_state64_t     fs;
  40 #else
  41         x86_exception_state32_t es;
  42         x86_thread_state32_t    ss;
  43         x86_float_state32_t     fs;
  44 #endif
  45 };
  46
  47 #ifndef _POSIX_C_SOURCE
  48 #if __LP64__
  49 #define I386_MCONTEXT_SIZE      (x86_THREAD_STATE64_COUNT + x86_FLOAT_STATE64_COUNT + x86_EXCEPTION_STATE64_COUNT) * sizeof(int)
  50 #else
  51 #define I386_MCONTEXT_SIZE      (x86_THREAD_STATE32_COUNT + x86_FLOAT_STATE32_COUNT + x86_EXCEPTION_STATE32_COUNT) * sizeof(int)
  52 #endif
  53 #endif /* _POSIX_C_SOURCE */
  54
  55 #ifndef _MCONTEXT_T
  56 #define _MCONTEXT_T
  57 typedef __darwin_mcontext_t     mcontext_t;
  58 #endif
  59
  60
  61 #ifdef XNU_KERNEL_PRIVATE
  62 struct mcontext64 {
  63         x86_exception_state64_t es;
  64         x86_thread_state64_t    ss;
  65         x86_float_state64_t     fs;
  66 };
  67
  68 struct mcontext32 {
  69         x86_exception_state32_t es;
  70         x86_thread_state32_t    ss;
  71         x86_float_state32_t     fs;
  72 };
  73 #endif
  74
  75
  76 #endif /* _I386_UCONTEXT_H_ */