xnu-792.6.61.tar.gz

[apple/xnu.git] / bsd / sys / ucontext.h

diff --git a/bsd/sys/ucontext.h b/bsd/sys/ucontext.h
index 114c476e59c5db6b7970c1278c0964eabd93e299..f231226a23cf8faeb24d2386ba7df3df3c5e340d 100644 (file)
--- a/bsd/sys/ucontext.h
+++ b/bsd/sys/ucontext.h
@@ -1,24 +1,21 @@
 /*
- * Copyright (c) 2002 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2002-2005 Apple Computer, Inc. All rights reserved.
  *
  * @APPLE_LICENSE_HEADER_START@
  * 
- * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
+ * The contents of this file constitute Original Code as defined in and
+ * are subject to the Apple Public Source License Version 1.1 (the
+ * "License").  You may not use this file except in compliance with the
+ * License.  Please obtain a copy of the License at
+ * http://www.apple.com/publicsource and read it before using this file.
  * 
- * This file contains Original Code and/or Modifications of Original Code
- * as defined in and that are subject to the Apple Public Source License
- * Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
- * 
- * The Original Code and all software distributed under the License are
- * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * This Original Code and all software distributed under the License are
+ * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- * Please see the License for the specific language governing rights and
- * limitations under the License.
+ * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
+ * License for the specific language governing rights and limitations
+ * under the License.
  * 
  * @APPLE_LICENSE_HEADER_END@
  */
@@ -26,17 +23,58 @@
 #ifndef _SYS_UCONTEXT_H_
 #define _SYS_UCONTEXT_H_
 
+#include <sys/cdefs.h>
+#include <sys/_types.h>
 #include <machine/ucontext.h>
 
-struct ucontext {
-       int             uc_onstack;
-       sigset_t        uc_sigmask;     /* signal mask used by this context */
-       stack_t         uc_stack;       /* stack used by this context */
-       struct ucontext *uc_link;       /* pointer to resuming context */
-       size_t          uc_mcsize;      /* size of the machine context passed in */
-       mcontext_t      uc_mcontext;    /* machine specific context */
+#ifndef _SIGSET_T
+#define _SIGSET_T
+typedef __darwin_sigset_t      sigset_t;
+#endif
+
+#ifndef _STACK_T
+#define _STACK_T
+typedef __darwin_stack_t       stack_t;
+#endif
+
+#ifndef _UCONTEXT_T
+#define _UCONTEXT_T
+#ifndef _POSIX_C_SOURCE
+typedef struct ucontext        ucontext_t;
+#else /* _POSIX_C_SOURCE */
+typedef struct __darwin_ucontext ucontext_t;
+#endif /* _POSIX_C_SOURCE */
+#endif
+
+#ifndef _POSIX_C_SOURCE
+#ifndef _UCONTEXT64_T
+#define _UCONTEXT64_T
+typedef struct ucontext64      ucontext64_t;
+#endif
+#endif /* _POSIX_C_SOURCE */
+
+#ifdef KERNEL
+#include <machine/types.h>     /* user_addr_t, user_size_t */
+
+#if __DARWIN_ALIGN_NATURAL
+#pragma options align=natural
+#endif
+
+/* kernel representation of struct ucontext64 for 64 bit processes */
+struct user_ucontext64 {
+       int                             uc_onstack;
+       sigset_t                        uc_sigmask;     /* signal mask */
+       struct user_sigaltstack         uc_stack;       /* stack */
+       user_addr_t                     uc_link;        /* ucontext pointer */
+       user_size_t                     uc_mcsize;      /* mcontext size */
+       user_addr_t                     uc_mcontext64;  /* machine context */
 };
 
-typedef struct ucontext ucontext_t;
+#if __DARWIN_ALIGN_NATURAL
+#pragma options align=reset
+#endif
+
+typedef struct user_ucontext64 user_ucontext64_t;
+#endif /* KERNEL */
 
 #endif /* _SYS_UCONTEXT_H_ */