osfmk/ppc/low_trace.h

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_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. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23 /*
  24  * @OSF_COPYRIGHT@
  25  */
  26
  27 /*
  28  *
  29  *      These are the structures and constants used for the low-level trace
  30  */
  31
  32
  33
  34
  35
  36
  37 #ifndef _LOW_TRACE_H_
  38 #define _LOW_TRACE_H_
  39
  40 #pragma pack(4)                                                 /* Make sure the structure stays as we defined it */
  41 typedef struct LowTraceRecord {
  42
  43         unsigned short  LTR_cpu;                        /* 0000 - CPU address */
  44         unsigned short  LTR_excpt;                      /* 0002 - Exception code */
  45         unsigned int    LTR_timeHi;                     /* 0004 - High order time */
  46         unsigned int    LTR_timeLo;                     /* 0008 - Low order time */
  47         unsigned int    LTR_cr;                         /* 000C - CR */
  48         unsigned int    LTR_dsisr;                      /* 0010 - DSISR */
  49         unsigned int    LTR_rsvd0;                      /* 0014 - reserved */
  50         uint64_t                LTR_srr0;                       /* 0018 - SRR0 */
  51
  52         uint64_t                LTR_srr1;                       /* 0020 - SRR1 */
  53         uint64_t                LTR_dar;                        /* 0028 - DAR */
  54         uint64_t                LTR_save;                       /* 0030 - savearea */
  55         uint64_t                LTR_lr;                         /* 0038 - LR */
  56
  57         uint64_t                LTR_ctr;                        /* 0040 - CTR */
  58         uint64_t                LTR_r0;                         /* 0048 - R0 */
  59         uint64_t                LTR_r1;                         /* 0050 - R1 */
  60         uint64_t                LTR_r2;                         /* 0058 - R2 */
  61
  62         uint64_t                LTR_r3;                         /* 0060 - R3 */
  63         uint64_t                LTR_r4;                         /* 0068 - R4 */
  64         uint64_t                LTR_r5;                         /* 0070 - R5 */
  65         uint64_t                LTR_r6;                         /* 0078 - R6 */
  66
  67 } LowTraceRecord;
  68 #pragma pack()
  69
  70 #pragma pack(4)                                                 /* Make sure the structure stays as we defined it */
  71 typedef struct traceWork {
  72
  73         unsigned int traceCurr;                         /* Address of next slot */
  74         unsigned int traceMask;                         /* Types to be traced */
  75         unsigned int traceStart;                        /* Start of trace table */
  76         unsigned int traceEnd;                          /* End of trace table */
  77         unsigned int traceMsnd;                         /* Saved trace mask */
  78         unsigned int traceSize;                         /* Size of trace table. Min 1 page */
  79         unsigned int traceGas[2];
  80 } traceWork;
  81 #pragma pack()
  82
  83 extern traceWork trcWork;
  84 extern unsigned int lastTrace;                  /* Value of low-level exception trace controls */
  85
  86
  87 #endif /* ifndef _LOW_TRACE_H_ */