osfmk/ppc/trap.h

   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_ */