osfmk/ppc/low_trace.h

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * The contents of this file constitute Original Code as defined in and
   7  * are subject to the Apple Public Source License Version 1.1 (the
   8  * "License").  You may not use this file except in compliance with the
   9  * License.  Please obtain a copy of the License at
  10  * http://www.apple.com/publicsource and read it before using this file.
  11  *
  12  * This Original Code and all software distributed under the License are
  13  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  14  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  15  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  17  * License for the specific language governing rights and limitations
  18  * under the License.
  19  *
  20  * @APPLE_LICENSE_HEADER_END@
  21  */
  22 /*
  23  * @OSF_COPYRIGHT@
  24  */
  25
  26 /*
  27  *
  28  *      These are the structures and constants used for the low-level trace
  29  */
  30
  31
  32
  33
  34
  35
  36 #ifndef _LOW_TRACE_H_
  37 #define _LOW_TRACE_H_
  38
  39 #pragma pack(4)                                                 /* Make sure the structure stays as we defined it */
  40 typedef struct LowTraceRecord {
  41
  42         unsigned short  LTR_cpu;                        /* 0000 - CPU address */
  43         unsigned short  LTR_excpt;                      /* 0002 - Exception code */
  44         unsigned int    LTR_timeHi;                     /* 0004 - High order time */
  45         unsigned int    LTR_timeLo;                     /* 0008 - Low order time */
  46         unsigned int    LTR_cr;                         /* 000C - CR */
  47         unsigned int    LTR_dsisr;                      /* 0010 - DSISR */
  48         unsigned int    LTR_rsvd0;                      /* 0014 - reserved */
  49         uint64_t                LTR_srr0;                       /* 0018 - SRR0 */
  50
  51         uint64_t                LTR_srr1;                       /* 0020 - SRR1 */
  52         uint64_t                LTR_dar;                        /* 0028 - DAR */
  53         uint64_t                LTR_save;                       /* 0030 - savearea */
  54         uint64_t                LTR_lr;                         /* 0038 - LR */
  55
  56         uint64_t                LTR_ctr;                        /* 0040 - CTR */
  57         uint64_t                LTR_r0;                         /* 0048 - R0 */
  58         uint64_t                LTR_r1;                         /* 0050 - R1 */
  59         uint64_t                LTR_r2;                         /* 0058 - R2 */
  60
  61         uint64_t                LTR_r3;                         /* 0060 - R3 */
  62         uint64_t                LTR_r4;                         /* 0068 - R4 */
  63         uint64_t                LTR_r5;                         /* 0070 - R5 */
  64         uint64_t                LTR_r6;                         /* 0078 - R6 */
  65
  66 } LowTraceRecord;
  67 #pragma pack()
  68
  69 #pragma pack(4)                                                 /* Make sure the structure stays as we defined it */
  70 typedef struct traceWork {
  71
  72         unsigned int traceCurr;                         /* Address of next slot */
  73         unsigned int traceMask;                         /* Types to be traced */
  74         unsigned int traceStart;                        /* Start of trace table */
  75         unsigned int traceEnd;                          /* End of trace table */
  76         unsigned int traceMsnd;                         /* Saved trace mask */
  77         unsigned int traceSize;                         /* Size of trace table. Min 1 page */
  78         unsigned int traceGas[2];
  79 } traceWork;
  80 #pragma pack()
  81
  82 extern traceWork trcWork;
  83 extern unsigned int lastTrace;                  /* Value of low-level exception trace controls */
  84
  85
  86 #endif /* ifndef _LOW_TRACE_H_ */