xnu-1699.22.81.tar.gz

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

diff --git a/bsd/sys/ucontext.h b/bsd/sys/ucontext.h
index 993d224876de7a9b5677333d920550aee9c7b808..249cf5e235c06525190ad00fb0d196c7565b2307 100644 (file)
--- a/bsd/sys/ucontext.h
+++ b/bsd/sys/ucontext.h
@@ -1,16 +1,19 @@
 /*
- * Copyright (c) 2002 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2002-2006 Apple Computer, Inc. All rights reserved.
  *
- * @APPLE_LICENSE_HEADER_START@
- * 
- * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
  * 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.
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
+ * 
+ * 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
@@ -20,35 +23,47 @@
  * Please see the License for the specific language governing rights and
  * limitations under the License.
  * 
- * @APPLE_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
 
 #ifndef _SYS_UCONTEXT_H_
 #define _SYS_UCONTEXT_H_
 
-#include <machine/ucontext.h>
+#include <sys/cdefs.h>
+#include <sys/_types.h>
+
+#define __need_mcontext_t
+#define __need_stack_t
+#define __need_ucontext_t
+#include <sys/_structs.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
 
+#ifdef KERNEL
+#include <machine/types.h>     /* user_addr_t, user_size_t */
 
-typedef struct ucontext ucontext_t;
+/* kernel representation of struct ucontext64 for 64 bit processes */
+typedef struct user_ucontext64 {
+       int                             uc_onstack;
+       sigset_t                        uc_sigmask;     /* signal mask */
+       struct user64_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 */
+} user_ucontext64_t;
 
-struct ucontext64 {
-       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 */
-       mcontext64_t    uc_mcontext64;  /* machine specific context */
-};
+typedef struct user_ucontext32 {
+       int                             uc_onstack;
+       sigset_t                        uc_sigmask;     /* signal mask */
+       struct user32_sigaltstack       uc_stack;       /* stack */
+       user32_addr_t                   uc_link;        /* ucontext pointer */
+       user32_size_t                   uc_mcsize;      /* mcontext size */
+       user32_addr_t                   uc_mcontext;    /* machine context */
+} user_ucontext32_t;
 
-typedef struct ucontext64 ucontext64_t;
+#endif /* KERNEL */
 
 #endif /* _SYS_UCONTEXT_H_ */