osfmk/ppc/trap.h

   1 /*
   2  * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. The rights granted to you under the License
  10  * may not be used to create, or enable the creation or redistribution of,
  11  * unlawful or unlicensed copies of an Apple operating system, or to
  12  * circumvent, violate, or enable the circumvention or violation of, any
  13  * terms of an Apple operating system software license agreement.
  14  *
  15  * Please obtain a copy of the License at
  16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
  17  *
  18  * The Original Code and all software distributed under the License are
  19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  21  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
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  23  * Please see the License for the specific language governing rights and
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  26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  27  */
  28 /*
  29  * @OSF_COPYRIGHT@
  30  */
  31 /*
  32  * Mach Operating System
  33  * Copyright (c) 1991,1990 Carnegie Mellon University
  34  * All Rights Reserved.
  35  *
  36  * Permission to use, copy, modify and distribute this software and its
  37  * documentation is hereby granted, provided that both the copyright
  38  * notice and this permission notice appear in all copies of the
  39  * software, derivative works or modified versions, and any portions
  40  * thereof, and that both notices appear in supporting documentation.
  41  *
  42  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
  43  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
  44  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
  45  *
  46  * Carnegie Mellon requests users of this software to return to
  47  *
  48  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
  49  *  School of Computer Science
  50  *  Carnegie Mellon University
  51  *  Pittsburgh PA 15213-3890
  52  *
  53  * any improvements or extensions that they make and grant Carnegie Mellon
  54  * the rights to redistribute these changes.
  55  */
  56
  57 #ifndef _PPC_TRAP_H_
  58 #define _PPC_TRAP_H_
  59
  60 /* maximum number of arguments to a syscall trap */
  61 #define NARGS   12
  62 /* Size to reserve in frame for arguments - first 8 are in registers */
  63 #define ARG_SIZE FM_ALIGN((NARGS-8)*4)
  64 #define MUNGE_ARGS_SIZE FM_ALIGN(8*8)
  65
  66 /*
  67  * Hardware exception vectors for powerpc are in exception.h
  68  */
  69
  70 #ifndef ASSEMBLER
  71
  72 #include <mach/thread_status.h>
  73 #include <mach/boolean.h>
  74 #include <mach/kern_return.h>
  75 #include <ppc/thread.h>
  76
  77 extern void                     doexception(int exc, mach_exception_code_t code,
  78                                         mach_exception_subcode_t sub);
  79
  80 extern struct savearea* trap(int trapno,
  81                                      struct savearea *ss,
  82                                      unsigned int dsisr,
  83                                      addr64_t dar);
  84
  85 typedef kern_return_t (*perfCallback)(int trapno, struct savearea *ss,
  86         unsigned int dsisr, addr64_t dar);
  87
  88 extern perfCallback perfTrapHook;
  89 extern perfCallback perfASTHook;
  90 extern perfCallback perfIntHook;
  91
  92 extern struct savearea* interrupt(int intno,
  93                                          struct savearea *ss,
  94                                          unsigned int dsisr,
  95                                          unsigned int dar);
  96
  97 extern int                      syscall_error(int exception,
  98                                               int64_t code,
  99                                               int64_t subcode,
 100                                               struct savearea *ss);
 101
 102
 103 #endif  /* ASSEMBLER */
 104
 105 #endif  /* _PPC_TRAP_H_ */