The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/osfmk/ppc/trap.h

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    1 /*
    2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
    3  *
    4  * @APPLE_LICENSE_HEADER_START@
    5  * 
    6  * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
    7  * 
    8  * This file contains Original Code and/or Modifications of Original Code
    9  * as defined in and that are subject to the Apple Public Source License
   10  * Version 2.0 (the 'License'). You may not use this file except in
   11  * compliance with the License. Please obtain a copy of the License at
   12  * http://www.opensource.apple.com/apsl/ and read it before using this
   13  * file.
   14  * 
   15  * The Original Code and all software distributed under the License are
   16  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
   17  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
   18  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
   19  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
   20  * Please see the License for the specific language governing rights and
   21  * limitations under the License.
   22  * 
   23  * @APPLE_LICENSE_HEADER_END@
   24  */
   25 /*
   26  * @OSF_COPYRIGHT@
   27  */
   28 /* 
   29  * Mach Operating System
   30  * Copyright (c) 1991,1990 Carnegie Mellon University
   31  * All Rights Reserved.
   32  * 
   33  * Permission to use, copy, modify and distribute this software and its
   34  * documentation is hereby granted, provided that both the copyright
   35  * notice and this permission notice appear in all copies of the
   36  * software, derivative works or modified versions, and any portions
   37  * thereof, and that both notices appear in supporting documentation.
   38  * 
   39  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
   40  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
   41  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
   42  * 
   43  * Carnegie Mellon requests users of this software to return to
   44  * 
   45  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
   46  *  School of Computer Science
   47  *  Carnegie Mellon University
   48  *  Pittsburgh PA 15213-3890
   49  * 
   50  * any improvements or extensions that they make and grant Carnegie Mellon
   51  * the rights to redistribute these changes.
   52  */
   53 
   54 #ifndef _PPC_TRAP_H_
   55 #define _PPC_TRAP_H_
   56 
   57 /* maximum number of arguments to a syscall trap */
   58 #define NARGS   12
   59 /* Size to reserve in frame for arguments - first 8 are in registers */
   60 #define ARG_SIZE FM_ALIGN((NARGS-8)*4)
   61 
   62 
   63 /*
   64  * Hardware exception vectors for powerpc are in exception.h
   65  */
   66 
   67 #ifndef ASSEMBLER
   68 
   69 #include <mach/thread_status.h>
   70 #include <mach/boolean.h>
   71 #include <mach/kern_return.h>
   72 #include <ppc/thread.h>
   73 
   74 extern void                     doexception(int exc, int code, int sub);
   75 
   76 extern void                     thread_exception_return(void);
   77 
   78 extern struct savearea* trap(int trapno,
   79                                      struct savearea *ss,
   80                                      unsigned int dsisr,
   81                                      addr64_t dar);
   82 
   83 typedef kern_return_t (*perfTrap)(int trapno, struct savearea *ss, 
   84         unsigned int dsisr, addr64_t dar);
   85 
   86 extern perfTrap perfTrapHook;
   87 extern perfTrap perfIntHook;
   88 
   89 extern struct savearea* interrupt(int intno,
   90                                          struct savearea *ss,
   91                                          unsigned int dsisr,
   92                                          unsigned int dar);
   93 
   94 extern int                      syscall_error(int exception,
   95                                               int code,
   96                                               int subcode,
   97                                               struct savearea *ss);
   98 
   99 
  100 #endif  /* ASSEMBLER */
  101 
  102 #endif  /* _PPC_TRAP_H_ */

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