xnu-1699.22.73.tar.gz

[apple/xnu.git] / bsd / i386 / setjmp.h

diff --git a/bsd/i386/setjmp.h b/bsd/i386/setjmp.h
index b2584eb47132b7a190196fbdb970d18c33fb5ad3..e28e4d67919b57a28dfc4ef9a895fd64e29e3a85 100644 (file)
--- a/bsd/i386/setjmp.h
+++ b/bsd/i386/setjmp.h
@@ -1,23 +1,29 @@
 /*
  * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
  *
- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
- * 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. 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.
  * 
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * 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
  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
- * License for the specific language governing rights and limitations
- * under the License.
+ * 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.
  * 
- * @APPLE_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
 /* Copyright (c) 1992 NeXT Computer, Inc.  All rights reserved.
  *
@@ -29,26 +35,56 @@
 #define _BSD_I386_SETJMP_H
 
 #include <sys/cdefs.h>
-#include <i386/signal.h>
 
-typedef struct sigcontext jmp_buf[1];
+#if defined(__x86_64__)
+/*
+ * _JBLEN is number of ints required to save the following:
+ * rflags, rip, rbp, rsp, rbx, r12, r13, r14, r15... these are 8 bytes each
+ * mxcsr, fp control word, sigmask... these are 4 bytes each
+ * add 16 ints for future expansion needs...
+ */
+#define _JBLEN ((9 * 2) + 3 + 16)
+typedef int jmp_buf[_JBLEN];
+typedef int sigjmp_buf[_JBLEN + 1];
+
+#else
+
+/*
+ * _JBLEN is number of ints required to save the following:
+ * eax, ebx, ecx, edx, edi, esi, ebp, esp, ss, eflags, eip,
+ * cs, de, es, fs, gs == 16 ints
+ * onstack, mask = 2 ints
+ */
+
+#if defined(KERNEL)
 
+#define __need_struct_sigcontext
+#include <i386/_structs.h>
+
+typedef struct sigcontext jmp_buf[1];
 #define _JBLEN ((sizeof(struct sigcontext)) / sizeof(int))
 typedef int sigjmp_buf[_JBLEN+1];
+#else
+#define _JBLEN (18)
+typedef int jmp_buf[_JBLEN];
+typedef int sigjmp_buf[_JBLEN + 1];
+#endif
+
+#endif
 
 __BEGIN_DECLS
-extern int setjmp __P((jmp_buf env));
-extern void longjmp __P((jmp_buf env, int val));
+int    setjmp(jmp_buf);
+void   longjmp(jmp_buf, int);
 
 #ifndef _ANSI_SOURCE
-int sigsetjmp __P((sigjmp_buf env, int val));
-void siglongjmp __P((sigjmp_buf env, int val));
+int    _setjmp(jmp_buf);
+void   _longjmp(jmp_buf, int);
+int    sigsetjmp(sigjmp_buf, int);
+void   siglongjmp(sigjmp_buf, int);
 #endif /* _ANSI_SOURCE  */
 
-#if !defined(_ANSI_SOURCE) && !defined(_POSIX_SOURCE)
-int    _setjmp __P((jmp_buf env));
-void   _longjmp __P((jmp_buf, int val));
-void   longjmperror __P((void));
+#if !defined(_ANSI_SOURCE) && (!defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE))
+void   longjmperror(void);
 #endif /* neither ANSI nor POSIX */
 __END_DECLS
 #endif /* !_BSD_I386_SETJMP_H */