osfmk/ppc/low_trace.h

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_OSREFERENCE_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
  10  * License may not be used to create, or enable the creation or
  11  * redistribution of, unlawful or unlicensed copies of an Apple operating
  12  * system, or to circumvent, violate, or enable the circumvention or
  13  * violation of, any terms of an Apple operating system software license
  14  * agreement.
  15  *
  16  * Please obtain a copy of the License at
  17  * http://www.opensource.apple.com/apsl/ and read it before using this
  18  * file.
  19  *
  20  * The Original Code and all software distributed under the License are
  21  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  22  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  23  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  24  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  25  * Please see the License for the specific language governing rights and
  26  * limitations under the License.
  27  *
  28  * @APPLE_LICENSE_OSREFERENCE_HEADER_END@
  29  */
  30 /*
  31  * @OSF_COPYRIGHT@
  32  */
  33
  34 /*
  35  *
  36  *      These are the structures and constants used for the low-level trace
  37  */
  38
  39
  40
  41
  42
  43
  44 #ifndef _LOW_TRACE_H_
  45 #define _LOW_TRACE_H_
  46
  47 #pragma pack(4)                                                 /* Make sure the structure stays as we defined it */
  48 typedef struct LowTraceRecord {
  49
  50         unsigned short  LTR_cpu;                        /* 0000 - CPU address */
  51         unsigned short  LTR_excpt;                      /* 0002 - Exception code */
  52         unsigned int    LTR_timeHi;                     /* 0004 - High order time */
  53         unsigned int    LTR_timeLo;                     /* 0008 - Low order time */
  54         unsigned int    LTR_cr;                         /* 000C - CR */
  55         unsigned int    LTR_dsisr;                      /* 0010 - DSISR */
  56         unsigned int    LTR_rsvd0;                      /* 0014 - reserved */
  57         uint64_t                LTR_srr0;                       /* 0018 - SRR0 */
  58
  59         uint64_t                LTR_srr1;                       /* 0020 - SRR1 */
  60         uint64_t                LTR_dar;                        /* 0028 - DAR */
  61         uint64_t                LTR_save;                       /* 0030 - savearea */
  62         uint64_t                LTR_lr;                         /* 0038 - LR */
  63
  64         uint64_t                LTR_ctr;                        /* 0040 - CTR */
  65         uint64_t                LTR_r0;                         /* 0048 - R0 */
  66         uint64_t                LTR_r1;                         /* 0050 - R1 */
  67         uint64_t                LTR_r2;                         /* 0058 - R2 */
  68
  69         uint64_t                LTR_r3;                         /* 0060 - R3 */
  70         uint64_t                LTR_r4;                         /* 0068 - R4 */
  71         uint64_t                LTR_r5;                         /* 0070 - R5 */
  72         uint64_t                LTR_r6;                         /* 0078 - R6 */
  73
  74 } LowTraceRecord;
  75 #pragma pack()
  76
  77 #pragma pack(4)                                                 /* Make sure the structure stays as we defined it */
  78 typedef struct traceWork {
  79
  80         unsigned int traceCurr;                         /* Address of next slot */
  81         unsigned int traceMask;                         /* Types to be traced */
  82         unsigned int traceStart;                        /* Start of trace table */
  83         unsigned int traceEnd;                          /* End of trace table */
  84         unsigned int traceMsnd;                         /* Saved trace mask */
  85         unsigned int traceSize;                         /* Size of trace table. Min 1 page */
  86         unsigned int traceGas[2];
  87 } traceWork;
  88 #pragma pack()
  89
  90 extern traceWork trcWork;
  91 extern unsigned int lastTrace;                  /* Value of low-level exception trace controls */
  92
  93
  94 #endif /* ifndef _LOW_TRACE_H_ */