| 1 | /* $Id: prfcore.h.h 3609 2007-10-29 01:11:39Z bird $ */
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| 2 | /** @file
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| 3 | * kProfiler Mark 2 - Core Header Template.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (c) 2006-2007 knut st. osmundsen <bird-src-spam@anduin.net>
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| 8 | *
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| 9 | * This file is part of kProfiler.
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| 10 | *
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| 11 | * kProfiler is free software; you can redistribute it and/or
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| 12 | * modify it under the terms of the GNU Lesser General Public
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| 13 | * License as published by the Free Software Foundation; either
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| 14 | * version 2.1 of the License, or (at your option) any later version.
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| 15 | *
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| 16 | * kProfiler is distributed in the hope that it will be useful,
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| 17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 19 | * Lesser General Public License for more details.
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| 20 | *
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| 21 | * You should have received a copy of the GNU Lesser General Public
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| 22 | * License along with kProfiler; if not, write to the Free Software
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| 23 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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| 24 | *
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| 25 | */
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| 26 |
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| 27 |
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| 28 | /** @def KPRF_NAME
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| 29 | * Mixed case name macro.
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| 30 | */
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| 31 | #ifndef KPRF_NAME
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| 32 | # define KPRF_NAME(Name) Name
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| 33 | #endif
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| 34 |
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| 35 | /** @def KPRF_TYPE
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| 36 | * Upper case type name macro.
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| 37 | */
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| 38 | #ifndef KPRF_TYPE
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| 39 | # define KPRF_TYPE(Prefix,Name) Prefix##Name
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| 40 | #endif
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| 41 |
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| 42 | /** @type KPRF_DECL_FUNC
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| 43 | * The calling convention used.
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| 44 | */
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| 45 | #ifndef KPRF_DECL_FUNC
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| 46 | # define KPRF_DECL_FUNC(type, name) type name
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| 47 | #endif
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| 48 |
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| 49 | /** @def KPRF_BITS
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| 50 | * The bitsize of the format.
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| 51 | */
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| 52 | #ifndef KPRF_BITS
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| 53 | # define KPRF_BITS 32
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| 54 | #endif
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| 55 |
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| 56 | /** @type UPTR
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| 57 | * The basic unsigned interger pointer type.
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| 58 | */
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| 59 | /** @type IPTR
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| 60 | * The basic signed interger pointer type.
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| 61 | */
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| 62 | #if KPRF_BITS == 16
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| 63 | typedef KU16 KPRF_TYPE(,UPTR);
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| 64 | typedef KI16 KPRF_TYPE(,IPTR);
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| 65 | #elif KPRF_BITS == 32
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| 66 | typedef KU32 KPRF_TYPE(,UPTR);
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| 67 | typedef KI32 KPRF_TYPE(,IPTR);
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| 68 | #elif KPRF_BITS == 64
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| 69 | typedef KU64 KPRF_TYPE(,UPTR);
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| 70 | typedef KI64 KPRF_TYPE(,IPTR);
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| 71 | #else
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| 72 | # error "KPRF_BITS has an invalid value. Supported values are 16, 32 and 64."
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| 73 | #endif
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| 74 | /** @type KPRF_TYPE(P,UPTR)
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| 75 | * Pointer to the basic pointer type.
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| 76 | */
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| 77 | typedef KPRF_TYPE(,UPTR) *KPRF_TYPE(P,UPTR);
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| 78 |
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| 79 |
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| 80 | /**
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| 81 | * Various constants.
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| 82 | */
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| 83 | enum KPRF_TYPE(,CONSTANTS)
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| 84 | {
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| 85 | /** Magic for the profiler header. (Unix Epoc) */
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| 86 | KPRF_TYPE(,HDR_MAGIC) = 0x19700101
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| 87 | };
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| 88 |
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| 89 |
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| 90 | /**
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| 91 | * The profile data header.
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| 92 | */
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| 93 | typedef struct KPRF_TYPE(,HDR)
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| 94 | {
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| 95 | /** [0] The magic number for file data. (KPRF_TYPE(,HDR_MAGIC)) */
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| 96 | KU32 u32Magic;
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| 97 | /** [4] KPRF_BITS. */
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| 98 | KU32 cFormatBits;
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| 99 | /** [8] The base address which all pointers should be relative to. */
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| 100 | KPRF_TYPE(,UPTR) uBasePtr;
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| 101 | #if KPRF_BITS <= 16
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| 102 | /** [a] Reserved. */
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| 103 | KU16 u16Reserved;
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| 104 | #endif
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| 105 | #if KPRF_BITS <= 32
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| 106 | /** [c] Reserved. */
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| 107 | KU32 u32Reserved;
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| 108 | #endif
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| 109 | /** [10] The size of this data set. */
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| 110 | KU32 cb;
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| 111 | /** [10] The allocated data set size. */
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| 112 | KU32 cbAllocated;
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| 113 |
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| 114 | /** [18] The max number of functions the function table can hold. */
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| 115 | KU32 cMaxFunctions;
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| 116 | /** [1c] The current number of functions in the function table. */
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| 117 | KU32 cFunctions;
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| 118 | /** [20] The offset of the function table (relative to this header). */
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| 119 | KU32 offFunctions;
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| 120 | /** [24] The size of a function entry. */
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| 121 | KU32 cbFunction;
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| 122 |
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| 123 | /** [28] The max number of bytes the module segments can occupy. */
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| 124 | KU32 cbMaxModSegs;
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| 125 | /** [2c] The current size of the module segment records. */
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| 126 | KU32 cbModSegs;
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| 127 | /** [30] The offset of the module segment records (relative to this header). */
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| 128 | KU32 offModSegs;
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| 129 |
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| 130 | /** [34] The max number of threads the thread table can contain. */
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| 131 | KU32 cMaxThreads;
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| 132 | /** [38] The current number of threads in the thread table. */
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| 133 | KU32 cThreads;
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| 134 | /** [3c] The offset of the thread table (relative to this header). */
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| 135 | KU32 offThreads;
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| 136 | /** [40] The size of a thread entry. */
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| 137 | KU32 cbThread;
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| 138 |
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| 139 | /** [44] The max number of stacks the stack table can contain. */
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| 140 | KU32 cMaxStacks;
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| 141 | /** [48] The max number of stacks.
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| 142 | * Unlike the other members, the stacks can be reused. It follows that
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| 143 | * this count doesn't specify the number of used slots from the start. */
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| 144 | KU32 cStacks;
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| 145 | /** [4c] The offset of the thread table (relative to this header).
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| 146 | * This is usually 0 in a stored data set. */
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| 147 | KU32 offStacks;
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| 148 | /** [50] The size of a stack. */
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| 149 | KU32 cbStack;
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| 150 | /** [54] The maxium stack depth. */
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| 151 | KU32 cMaxStackFrames;
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| 152 |
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| 153 | /** [58] The process commandline.
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| 154 | * Might not always apply is will be 0 in those cases. This is normally written
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| 155 | * where the stacks used to be.
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| 156 | */
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| 157 | KU32 offCommandLine;
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| 158 | /** [5c] The length of the command line. (excludes the terminator). */
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| 159 | KU32 cchCommandLine;
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| 160 |
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| 161 | /** [60] The function lookup table (it contains indexes).
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| 162 | * This is sorted by address so that a binary search can be performed.
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| 163 | * Access to this table is managed externally, but generally a read/write lock is employed. */
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| 164 | KU32 aiFunctions[1];
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| 165 | } KPRF_TYPE(,HDR);
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| 166 | /** Pointer to a profiler data header. */
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| 167 | typedef KPRF_TYPE(,HDR) *KPRF_TYPE(P,HDR);
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| 168 | /** Pointer to a const profiler data header. */
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| 169 | typedef const KPRF_TYPE(,HDR) *KPRF_TYPE(PC,HDR);
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| 170 |
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| 171 |
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| 172 | /**
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| 173 | * Time statistics.
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| 174 | */
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| 175 | typedef struct KPRF_TYPE(,TIMESTAT) /** @todo bad names and descriptions! */
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| 176 | {
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| 177 | /** The minimum period */
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| 178 | KU64 volatile MinTicks;
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| 179 | /** The maximum period */
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| 180 | KU64 volatile MaxTicks;
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| 181 | /** The sum of all periods. */
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| 182 | KU64 volatile SumTicks;
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| 183 | } KPRF_TYPE(,TIMESTAT);
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| 184 | /** Pointer to time statistics. */
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| 185 | typedef KPRF_TYPE(,TIMESTAT) *KPRF_TYPE(P,TIMESTAT);
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| 186 | /** Pointer to const time statistics. */
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| 187 | typedef const KPRF_TYPE(,TIMESTAT) *KPRF_TYPE(PC,TIMESTAT);
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| 188 |
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| 189 |
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| 190 | /**
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| 191 | * A Module Segment.
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| 192 | */
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| 193 | typedef struct KPRF_TYPE(,MODSEG)
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| 194 | {
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| 195 | /** The address of the segment. (relative address) */
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| 196 | KPRF_TYPE(,UPTR) uBasePtr;
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| 197 | /** The size of the segment minus one (so the entire address space can be covered). */
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| 198 | KPRF_TYPE(,UPTR) cbSegmentMinusOne;
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| 199 | /** The segment number. (0 based) */
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| 200 | KU32 iSegment;
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| 201 | /** Flag indicating whether this segment is loaded or not.
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| 202 | * (A 16-bit value was choosen out of convenience, all that's stored is 0 or 1 anyway.) */
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| 203 | KU16 fLoaded;
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| 204 | /** The length of the path.
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| 205 | * This is used to calculate the length of the record: offsetof(MODSEG, szPath) + cchPath + 1 */
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| 206 | KU16 cchPath;
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| 207 | /** The module name. */
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| 208 | char szPath[1];
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| 209 | } KPRF_TYPE(,MODSEG);
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| 210 | /** Pointer to a module segment. */
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| 211 | typedef KPRF_TYPE(,MODSEG) *KPRF_TYPE(P,MODSEG);
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| 212 | /** Pointer to a const module segment. */
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| 213 | typedef const KPRF_TYPE(,MODSEG) *KPRF_TYPE(PC,MODSEG);
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| 214 |
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| 215 |
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| 216 | /**
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| 217 | * The profiler data for a function.
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| 218 | */
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| 219 | typedef struct KPRF_TYPE(,FUNC)
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| 220 | {
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| 221 | /** The entry address of the function. (relative address)
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| 222 | * This is the return address of the entry hook (_mcount, _penter, _ProfileHook32, ...). */
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| 223 | KPRF_TYPE(,UPTR) uEntryPtr;
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| 224 | /** Offset (relative to the profiler header) of the module segment to which this function belongs. */
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| 225 | KU32 offModSeg;
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| 226 |
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| 227 | /** The number times on the stack. */
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| 228 | KU64 volatile cOnStack;
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| 229 | /** The number of calls made from this function. */
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| 230 | KU64 volatile cCalls;
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| 231 |
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| 232 | /** Time on stack. */
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| 233 | KPRF_TYPE(,TIMESTAT) OnStack;
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| 234 | /** Time on top of the stack, i.e. executing. */
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| 235 | KPRF_TYPE(,TIMESTAT) OnTopOfStack;
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| 236 |
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| 237 | /** @todo recursion */
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| 238 |
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| 239 | } KPRF_TYPE(,FUNC);
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| 240 | /** Pointer to the profiler data for a function. */
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| 241 | typedef KPRF_TYPE(,FUNC) *KPRF_TYPE(P,FUNC);
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| 242 | /** Pointer to the const profiler data for a function. */
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| 243 | typedef const KPRF_TYPE(,FUNC) *KPRF_TYPE(PC,FUNC);
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| 244 |
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| 245 |
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| 246 | /**
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| 247 | * Stack frame.
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| 248 | */
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| 249 | typedef struct KPRF_TYPE(,FRAME)
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| 250 | {
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| 251 | /** The accumulated overhead.
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| 252 | * Over head is accumulated by the parent frame when a child is poped off the stack. */
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| 253 | KU64 OverheadTicks;
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| 254 | /** The current (top of stack) overhead. */
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| 255 | KU64 CurOverheadTicks;
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| 256 | /** The accumulated sleep ticks.
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| 257 | * It's possible to notify the profiler that the thread is being put into a wait/sleep/yield
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| 258 | * state. The time spent sleeping is transfered to the parent frame when poping of a child one. */
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| 259 | KU64 SleepTicks;
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| 260 | /** The start of the on-stack period. */
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| 261 | KU64 OnStackStart;
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| 262 | /** The accumulated time on top (excludes overhead (sleep doesn't apply here obviously)). */
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| 263 | KU64 OnTopOfStackTicks;
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| 264 | /** The start of the current on-top-of-stack period.
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| 265 | * This is also to mark the start of a sleeping period, the ResumeThread function will always
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| 266 | * treat it as the start of the suspend period. */
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| 267 | KU64 OnTopOfStackStart;
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| 268 | /** The number of calls made from this stack frame. */
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| 269 | KU64 cCalls;
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| 270 | /** Stack address of this frame.
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| 271 | * This is used to detect throw and longjmp, and is also used to deal with overflow. (relative address) */
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| 272 | KPRF_TYPE(,UPTR) uFramePtr;
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| 273 | /** Offset (relative to the profiler header) to the function record.
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| 274 | * This is 0 if we're out of function space. */
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| 275 | KU32 offFunction;
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| 276 | } KPRF_TYPE(,FRAME);
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| 277 | /** Pointer to a stack frame. */
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| 278 | typedef KPRF_TYPE(,FRAME) *KPRF_TYPE(P,FRAME);
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| 279 | /** Pointer to a const stack frame. */
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| 280 | typedef const KPRF_TYPE(,FRAME) *KPRF_TYPE(PC,FRAME);
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| 281 |
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| 282 |
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| 283 | /**
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| 284 | * Stack.
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| 285 | */
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| 286 | typedef struct KPRF_TYPE(,STACK)
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| 287 | {
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| 288 | /** The offset (relative to the profiler header) of the thread owning the stack.
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| 289 | * This is zero if not in use, and non-zero if in use. */
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| 290 | KU32 offThread;
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| 291 | /** The number of active stack frames. */
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| 292 | KU32 cFrames;
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| 293 | /** The stack frames.
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| 294 | * The actual size of this array is specified in the header. */
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| 295 | KPRF_TYPE(,FRAME) aFrames[1];
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| 296 | } KPRF_TYPE(,STACK);
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| 297 | /** Pointer to a stack. */
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| 298 | typedef KPRF_TYPE(,STACK) *KPRF_TYPE(P,STACK);
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| 299 | /** Pointer to a const stack. */
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| 300 | typedef const KPRF_TYPE(,STACK) *KPRF_TYPE(PC,STACK);
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| 301 |
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| 302 |
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| 303 | /**
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| 304 | * The thread state.
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| 305 | */
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| 306 | typedef enum KPRF_TYPE(,THREADSTATE)
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| 307 | {
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| 308 | /** The thread hasn't been used yet. */
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| 309 | KPRF_TYPE(,THREADSTATE_UNUSED) = 0,
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| 310 | /** The thread is activly being profiled.
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| 311 | * A thread is added in the suspended state and then activated when
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| 312 | * starting to execute the first function.
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| 313 | */
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| 314 | KPRF_TYPE(,THREADSTATE_ACTIVE),
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| 315 | /** The thread is currently suspended from profiling.
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| 316 | * Upon entering profiler code the thread is suspended, it's reactivated
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| 317 | * upon normal return.
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| 318 | */
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| 319 | KPRF_TYPE(,THREADSTATE_SUSPENDED),
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| 320 | /** The thread is currently suspended due of stack overflow.
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| 321 | * When we overflow the stack frame array, the thread enter the overflow state. In this
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| 322 | * state nothing is profiled but we keep looking for the exit of the top frame. */
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| 323 | KPRF_TYPE(,THREADSTATE_OVERFLOWED),
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| 324 | /** The thread is terminated.
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| 325 | * When we received a thread termination notification the thread is unwinded, statistics
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| 326 | * updated and the state changed to terminated. A terminated thread cannot be revivied. */
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| 327 | KPRF_TYPE(,THREADSTATE_TERMINATED),
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| 328 |
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| 329 | /** Ensure 32-bit size. */
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| 330 | KPRF_TYPE(,THREADSTATE_32BIT_HACK) = 0x7fffffff
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| 331 | } KPRF_TYPE(,THREADSTATE);
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| 332 |
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| 333 |
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| 334 | /**
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| 335 | * Thread statistics and stack.
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| 336 | */
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| 337 | typedef struct KPRF_TYPE(,THREAD)
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| 338 | {
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| 339 | /** The native thread id. */
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| 340 | KU64 ThreadId;
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| 341 | /** The thread name. (optional) */
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| 342 | char szName[32];
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| 343 | /** The thread current thread state. */
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| 344 | KPRF_TYPE(,THREADSTATE) enmState;
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| 345 | /** Alignment. */
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| 346 | KPRF_TYPE(,THREADSTATE) Reserved0;
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| 347 | /** The base pointer of the thread stack. (relative address) */
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| 348 | KPRF_TYPE(,UPTR) uStackBasePtr;
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| 349 | /** The maximum depth of the thread stack (bytes). */
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| 350 | KPRF_TYPE(,UPTR) cbMaxStack;
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| 351 | /** The number of calls done by this thread. */
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| 352 | KU64 cCalls;
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| 353 | /** The number of times the stack overflowed. */
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| 354 | KU64 cOverflows;
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| 355 | /** The number of times stack entries has been rejected because of a stack switch. */
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| 356 | KU64 cStackSwitchRejects;
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| 357 | /** The number of times the stack has been unwinded more than one frame. */
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| 358 | KU64 cUnwinds;
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| 359 |
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| 360 | /** The profiled ticks. (This does not include sleep or overhead ticks.)
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| 361 | * This is the accumulated on-stack values for the final stack frames. */
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| 362 | KU64 ProfiledTicks;
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| 363 | /** The accumulated overhead of this thread. */
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| 364 | KU64 OverheadTicks;
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| 365 | /** The accumulated sleep ticks for this thread.
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| 366 | * See KPRF_TYPE(,FRAME)::SleepTicks for details. */
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| 367 | KU64 SleepTicks;
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| 368 |
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| 369 | /** The offset of the stack. */
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| 370 | KU32 offStack;
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| 371 | } KPRF_TYPE(,THREAD);
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| 372 | /** Pointer to a thread. */
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| 373 | typedef KPRF_TYPE(,THREAD) *KPRF_TYPE(P,THREAD);
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| 374 | /** Pointer to a const thread. */
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| 375 | typedef const KPRF_TYPE(,THREAD) *KPRF_TYPE(PC,THREAD);
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| 376 |
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| 377 |
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