osfmk/ppc/low_trace.h

   1 /*
   2  * Copyright (c) 2000 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,
  22  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  23  * Please see the License for the specific language governing rights and
  24  * limitations under the License.
  25  *
  26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  27  */
  28 /*
  29  * @OSF_COPYRIGHT@
  30  */
  31
  32 /*
  33  *
  34  *      These are the structures and constants used for the low-level trace
  35  */
  36
  37
  38
  39
  40
  41
  42 #ifndef _LOW_TRACE_H_
  43 #define _LOW_TRACE_H_
  44
  45 #pragma pack(4)                                                 /* Make sure the structure stays as we defined it */
  46 typedef struct LowTraceRecord {
  47
  48         unsigned short  LTR_cpu;                        /* 0000 - CPU address */
  49         unsigned short  LTR_excpt;                      /* 0002 - Exception code */
  50         unsigned int    LTR_timeHi;                     /* 0004 - High order time */
  51         unsigned int    LTR_timeLo;                     /* 0008 - Low order time */
  52         unsigned int    LTR_cr;                         /* 000C - CR */
  53         unsigned int    LTR_dsisr;                      /* 0010 - DSISR */
  54         unsigned int    LTR_rsvd0;                      /* 0014 - reserved */
  55         uint64_t                LTR_srr0;                       /* 0018 - SRR0 */
  56
  57         uint64_t                LTR_srr1;                       /* 0020 - SRR1 */
  58         uint64_t                LTR_dar;                        /* 0028 - DAR */
  59         uint64_t                LTR_save;                       /* 0030 - savearea */
  60         uint64_t                LTR_lr;                         /* 0038 - LR */
  61
  62         uint64_t                LTR_ctr;                        /* 0040 - CTR */
  63         uint64_t                LTR_r0;                         /* 0048 - R0 */
  64         uint64_t                LTR_r1;                         /* 0050 - R1 */
  65         uint64_t                LTR_r2;                         /* 0058 - R2 */
  66
  67         uint64_t                LTR_r3;                         /* 0060 - R3 */
  68         uint64_t                LTR_r4;                         /* 0068 - R4 */
  69         uint64_t                LTR_r5;                         /* 0070 - R5 */
  70         uint64_t                LTR_r6;                         /* 0078 - R6 */
  71
  72 } LowTraceRecord;
  73 #pragma pack()
  74
  75 #pragma pack(4)                                                 /* Make sure the structure stays as we defined it */
  76 typedef struct traceWork {
  77
  78         unsigned int traceCurr;                         /* Address of next slot */
  79         unsigned int traceMask;                         /* Types to be traced */
  80         unsigned int traceStart;                        /* Start of trace table */
  81         unsigned int traceEnd;                          /* End of trace table */
  82         unsigned int traceMsnd;                         /* Saved trace mask */
  83         unsigned int traceSize;                         /* Size of trace table. Min 1 page */
  84         unsigned int traceGas[2];
  85 } traceWork;
  86 #pragma pack()
  87
  88 extern traceWork trcWork;
  89 extern unsigned int lastTrace;                  /* Value of low-level exception trace controls */
  90
  91
  92 #endif /* ifndef _LOW_TRACE_H_ */