| 1 | /* $Id: dbg.h 19561 2009-05-10 05:20:01Z vboxsync $ */
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| 2 | /** @file
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| 3 | * IPRT - Debugging Routines.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2008-2009 Sun Microsystems, Inc.
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| 8 | *
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| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 10 | * available from http://www.virtualbox.org. This file is free software;
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| 11 | * you can redistribute it and/or modify it under the terms of the GNU
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| 12 | * General Public License (GPL) as published by the Free Software
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| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | *
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| 17 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
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| 18 | * Clara, CA 95054 USA or visit http://www.sun.com if you need
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| 19 | * additional information or have any questions.
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| 20 | */
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| 21 |
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| 22 | #ifndef ___iprt_dbg_h
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| 23 | #define ___iprt_dbg_h
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| 24 |
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| 25 | #include <iprt/types.h>
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| 26 | #include <iprt/stdarg.h>
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| 27 |
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| 28 | __BEGIN_DECLS
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| 29 |
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| 30 | /** @defgroup grp_rt_dbg RTDbg - Debugging Routines
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| 31 | * @ingroup grp_rt
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| 32 | * @{
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| 33 | */
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| 34 |
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| 35 |
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| 36 | /** Debug segment index. */
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| 37 | typedef uint32_t RTDBGSEGIDX;
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| 38 | /** Pointer to a debug segment index. */
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| 39 | typedef RTDBGSEGIDX *PRTDBGSEGIDX;
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| 40 | /** Pointer to a const debug segment index. */
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| 41 | typedef RTDBGSEGIDX const *PCRTDBGSEGIDX;
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| 42 | /** NIL debug segment index. */
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| 43 | #define NIL_RTDBGSEGIDX UINT32_C(0xffffffff)
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| 44 | /** Special segment index that indicates that the offset is a relative
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| 45 | * virtual address (RVA). I.e. an offset from the start of the module. */
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| 46 | #define RTDBGSEGIDX_RVA UINT32_C(0xfffffff0)
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| 47 | /** Special segment index that indicates that the offset is a absolute. */
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| 48 | #define RTDBGSEGIDX_ABS UINT32_C(0xfffffff1)
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| 49 |
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| 50 | /** Max length (including '\\0') of a symbol name. */
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| 51 | #define RTDBG_SYMBOL_NAME_LENGTH (512 - 8 - 4 - 4 - 4)
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| 52 |
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| 53 | /**
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| 54 | * Debug symbol.
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| 55 | */
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| 56 | typedef struct RTDBGSYMBOL
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| 57 | {
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| 58 | /** Symbol value (address). */
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| 59 | RTUINTPTR Value;
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| 60 | /** Segment number when applicable or NIL_RTDBGSEGIDX. */
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| 61 | RTDBGSEGIDX iSeg;
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| 62 | /** Symbol size. */
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| 63 | uint32_t cb;
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| 64 | /** Symbol Flags. (reserved). */
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| 65 | uint32_t fFlags;
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| 66 | /** Symbol name. */
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| 67 | char szName[RTDBG_SYMBOL_NAME_LENGTH];
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| 68 | } RTDBGSYMBOL;
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| 69 | /** Pointer to debug symbol. */
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| 70 | typedef RTDBGSYMBOL *PRTDBGSYMBOL;
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| 71 | /** Pointer to const debug symbol. */
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| 72 | typedef const RTDBGSYMBOL *PCRTDBGSYMBOL;
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| 73 |
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| 74 | RTDECL(PRTDBGSYMBOL) RTDbgSymbolAlloc(void);
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| 75 | RTDECL(PRTDBGSYMBOL) RTDbgSymbolDup(PCRTDBGSYMBOL pSymbol);
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| 76 | RTDECL(void) RTDbgSymbolFree(PRTDBGSYMBOL pSymbol);
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| 77 |
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| 78 |
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| 79 | /**
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| 80 | * Debug line number information.
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| 81 | */
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| 82 | typedef struct RTDBGLINE
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| 83 | {
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| 84 | /** Address. */
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| 85 | RTUINTPTR Address;
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| 86 | /** Segment number when applicable or NIL_RTDBGSEGIDX. */
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| 87 | RTDBGSEGIDX iSeg;
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| 88 | /** Line number. */
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| 89 | uint32_t uLineNo;
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| 90 | /** Filename. */
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| 91 | char szFilename[260];
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| 92 | } RTDBGLINE;
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| 93 | /** Pointer to debug line number. */
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| 94 | typedef RTDBGLINE *PRTDBGLINE;
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| 95 | /** Pointer to const debug line number. */
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| 96 | typedef const RTDBGLINE *PCRTDBGLINE;
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| 97 |
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| 98 | RTDECL(PRTDBGLINE) RTDbgLineAlloc(void);
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| 99 | RTDECL(PRTDBGLINE) RTDbgLineDup(PCRTDBGLINE pLine);
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| 100 | RTDECL(void) RTDbgLineFree(PRTDBGLINE pLine);
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| 101 |
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| 102 |
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| 103 | /** @defgroup grp_rt_dbgas RTDbgAs - Debug Address Space
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| 104 | * @{
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| 105 | */
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| 106 |
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| 107 | /**
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| 108 | * Creates an empty address space.
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| 109 | *
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| 110 | * @returns IPRT status code.
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| 111 | *
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| 112 | * @param phDbgAs Where to store the address space handle on success.
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| 113 | * @param FirstAddr The first address in the address space.
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| 114 | * @param LastAddr The last address in the address space.
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| 115 | * @param pszName The name of the address space.
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| 116 | */
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| 117 | RTDECL(int) RTDbgAsCreate(PRTDBGAS phDbgAs, RTUINTPTR FirstAddr, RTUINTPTR LastAddr, const char *pszName);
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| 118 |
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| 119 | /**
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| 120 | * Variant of RTDbgAsCreate that takes a name format string.
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| 121 | *
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| 122 | * @returns IPRT status code.
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| 123 | *
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| 124 | * @param phDbgAs Where to store the address space handle on success.
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| 125 | * @param FirstAddr The first address in the address space.
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| 126 | * @param LastAddr The last address in the address space.
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| 127 | * @param pszNameFmt The name format of the address space.
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| 128 | * @param va Format arguments.
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| 129 | */
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| 130 | RTDECL(int) RTDbgAsCreateV(PRTDBGAS phDbgAs, RTUINTPTR FirstAddr, RTUINTPTR LastAddr, const char *pszNameFmt, va_list va);
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| 131 |
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| 132 | /**
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| 133 | * Variant of RTDbgAsCreate that takes a name format string.
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| 134 | *
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| 135 | * @returns IPRT status code.
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| 136 | *
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| 137 | * @param phDbgAs Where to store the address space handle on success.
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| 138 | * @param FirstAddr The first address in the address space.
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| 139 | * @param LastAddr The last address in the address space.
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| 140 | * @param pszNameFmt The name format of the address space.
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| 141 | * @param ... Format arguments.
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| 142 | */
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| 143 | RTDECL(int) RTDbgAsCreateF(PRTDBGAS phDbgAs, RTUINTPTR FirstAddr, RTUINTPTR LastAddr, const char *pszNameFmt, ...);
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| 144 |
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| 145 | /**
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| 146 | * Destroys the address space.
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| 147 | *
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| 148 | * This means unlinking all the modules it currently contains, potentially
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| 149 | * causing some or all of them to be destroyed as they are managed by
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| 150 | * reference counting.
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| 151 | *
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| 152 | * @returns IPRT status code.
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| 153 | *
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| 154 | * @param hDbgAs The address space handle. A NIL handle will
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| 155 | * be quietly ignored.
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| 156 | */
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| 157 | RTDECL(int) RTDbgAsDestroy(RTDBGAS hDbgAs);
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| 158 |
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| 159 | /**
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| 160 | * Gets the name of an address space.
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| 161 | *
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| 162 | * @returns read only address space name.
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| 163 | * NULL if hDbgAs is invalid.
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| 164 | *
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| 165 | * @param hDbgAs The address space handle.
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| 166 | */
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| 167 | RTDECL(const char *) RTDbgAsName(RTDBGAS hDbgAs);
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| 168 |
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| 169 | /**
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| 170 | * Gets the first address in an address space.
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| 171 | *
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| 172 | * @returns The address.
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| 173 | * 0 if hDbgAs is invalid.
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| 174 | *
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| 175 | * @param hDbgAs The address space handle.
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| 176 | */
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| 177 | RTDECL(RTUINTPTR) RTDbgAsFirstAddr(RTDBGAS hDbgAs);
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| 178 |
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| 179 | /**
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| 180 | * Gets the last address in an address space.
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| 181 | *
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| 182 | * @returns The address.
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| 183 | * 0 if hDbgAs is invalid.
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| 184 | *
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| 185 | * @param hDbgAs The address space handle.
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| 186 | */
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| 187 | RTDECL(RTUINTPTR) RTDbgAsLastAddr(RTDBGAS hDbgAs);
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| 188 |
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| 189 | /**
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| 190 | * Gets the number of modules in the address space.
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| 191 | *
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| 192 | * This can be used together with RTDbgAsModuleByIndex
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| 193 | * to enumerate the modules.
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| 194 | *
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| 195 | * @returns The number of modules.
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| 196 | *
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| 197 | * @param hDbgAs The address space handle.
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| 198 | */
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| 199 | RTDECL(uint32_t) RTDbgAsModuleCount(RTDBGAS hDbgAs);
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| 200 |
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| 201 | /**
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| 202 | * Links a module into the address space at the give address.
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| 203 | *
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| 204 | * The size of the mapping is determined using RTDbgModImageSize().
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| 205 | *
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| 206 | * @returns IPRT status code.
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| 207 | * @retval VERR_OUT_OF_RANGE if the specified address will put the module
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| 208 | * outside the address space.
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| 209 | * @retval VERR_ADDRESS_CONFLICT if the mapping clashes with existing mappings.
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| 210 | *
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| 211 | * @param hDbgAs The address space handle.
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| 212 | * @param hDbgMod The module handle of the module to be linked in.
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| 213 | * @param ImageAddr The address to link the module at.
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| 214 | */
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| 215 | RTDECL(int) RTDbgAsModuleLink(RTDBGAS hDbgAs, RTDBGMOD hDbgMod, RTUINTPTR ImageAddr);
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| 216 |
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| 217 | /**
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| 218 | * Links a segment into the address space at the give address.
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| 219 | *
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| 220 | * The size of the mapping is determined using RTDbgModSegmentSize().
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| 221 | *
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| 222 | * @returns IPRT status code.
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| 223 | * @retval VERR_OUT_OF_RANGE if the specified address will put the module
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| 224 | * outside the address space.
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| 225 | * @retval VERR_ADDRESS_CONFLICT if the mapping clashes with existing mappings.
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| 226 | *
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| 227 | * @param hDbgAs The address space handle.
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| 228 | * @param hDbgMod The module handle.
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| 229 | * @param iSeg The segment number (0-based) of the segment to be
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| 230 | * linked in.
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| 231 | * @param SegAddr The address to link the segment at.
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| 232 | */
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| 233 | RTDECL(int) RTDbgAsModuleLinkSeg(RTDBGAS hDbgAs, RTDBGMOD hDbgMod, RTDBGSEGIDX iSeg, RTUINTPTR SegAddr);
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| 234 |
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| 235 | /**
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| 236 | * Unlinks all the mappings of a module from the address space.
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| 237 | *
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| 238 | * @returns IPRT status code.
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| 239 | * @retval VERR_NOT_FOUND if the module wasn't found.
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| 240 | *
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| 241 | * @param hDbgAs The address space handle.
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| 242 | * @param hDbgMod The module handle of the module to be unlinked.
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| 243 | */
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| 244 | RTDECL(int) RTDbgAsModuleUnlink(RTDBGAS hDbgAs, RTDBGMOD hDbgMod);
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| 245 |
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| 246 | /**
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| 247 | * Unlinks the mapping at the specified address.
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| 248 | *
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| 249 | * @returns IPRT status code.
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| 250 | * @retval VERR_NOT_FOUND if no module or segment is mapped at that address.
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| 251 | *
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| 252 | * @param hDbgAs The address space handle.
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| 253 | * @param Addr The address within the mapping to be unlinked.
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| 254 | */
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| 255 | RTDECL(int) RTDbgAsModuleUnlinkByAddr(RTDBGAS hDbgAs, RTUINTPTR Addr);
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| 256 |
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| 257 | /**
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| 258 | * Get a the handle of a module in the address space by is index.
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| 259 | *
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| 260 | * @returns A retained handle to the specified module. The caller must release
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| 261 | * the returned reference.
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| 262 | * NIL_RTDBGMOD if invalid index or handle.
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| 263 | *
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| 264 | * @param hDbgAs The address space handle.
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| 265 | * @param iModule The index of the module to get.
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| 266 | *
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| 267 | * @remarks The module indexes may change after calls to RTDbgAsModuleLink,
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| 268 | * RTDbgAsModuleLinkSeg, RTDbgAsModuleUnlink and
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| 269 | * RTDbgAsModuleUnlinkByAddr.
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| 270 | */
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| 271 | RTDECL(RTDBGMOD) RTDbgAsModuleByIndex(RTDBGAS hDbgAs, uint32_t iModule);
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| 272 |
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| 273 | /**
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| 274 | * Queries mapping module information by handle.
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| 275 | *
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| 276 | * @returns IPRT status code.
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| 277 | * @retval VERR_NOT_FOUND if no mapping was found at the specified address.
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| 278 | *
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| 279 | * @param hDbgAs The address space handle.
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| 280 | * @param Addr Address within the mapping of the module or segment.
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| 281 | * @param phMod Where to the return the retained module handle.
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| 282 | * Optional.
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| 283 | * @param pAddr Where to return the base address of the mapping.
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| 284 | * Optional.
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| 285 | * @param piSeg Where to return the segment index. This is set to
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| 286 | * NIL if the entire module is mapped as a single
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| 287 | * mapping. Optional.
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| 288 | */
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| 289 | RTDECL(int) RTDbgAsModuleByAddr(RTDBGAS hDbgAs, RTUINTPTR Addr, PRTDBGMOD phMod, PRTUINTPTR pAddr, PRTDBGSEGIDX piSeg);
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| 290 |
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| 291 | /**
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| 292 | * Queries mapping module information by name.
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| 293 | *
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| 294 | * @returns IPRT status code.
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| 295 | * @retval VERR_NOT_FOUND if no mapping was found at the specified address.
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| 296 | * @retval VERR_OUT_OF_RANGE if the name index was out of range.
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| 297 | *
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| 298 | * @param hDbgAs The address space handle.
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| 299 | * @param pszName The module name.
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| 300 | * @param iName There can be more than one module by the same name
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| 301 | * in an address space. This argument indicates which
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| 302 | * is ment. (0 based)
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| 303 | * @param phMod Where to the return the retained module handle.
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| 304 | */
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| 305 | RTDECL(int) RTDbgAsModuleByName(RTDBGAS hDbgAs, const char *pszName, uint32_t iName, PRTDBGMOD phMod);
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| 306 |
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| 307 | /**
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| 308 | * Adds a symbol to a module in the address space.
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| 309 | *
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| 310 | * @returns IPRT status code. See RTDbgModSymbolAdd for more specific ones.
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| 311 | * @retval VERR_INVALID_HANDLE if hDbgAs is invalid.
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| 312 | * @retval VERR_NOT_FOUND if no module was found at the specified address.
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| 313 | *
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| 314 | * @param hDbgAs The address space handle.
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| 315 | * @param pszSymbol The symbol name.
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| 316 | * @param Addr The address of the symbol.
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| 317 | * @param cb The size of the symbol.
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| 318 | */
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| 319 | RTDECL(int) RTDbgAsSymbolAdd(RTDBGAS hDbgAs, const char *pszSymbol, RTUINTPTR Addr, uint32_t cb);
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| 320 |
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| 321 | /**
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| 322 | * Query a symbol by address.
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| 323 | *
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| 324 | * @returns IPRT status code. See RTDbgModSymbolAddr for more specific ones.
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| 325 | * @retval VERR_INVALID_HANDLE if hDbgAs is invalid.
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| 326 | * @retval VERR_NOT_FOUND if the address couldn't be mapped to a module.
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| 327 | *
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| 328 | * @param hDbgAs The address space handle.
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| 329 | * @param Addr The address which closest symbol is requested.
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| 330 | * @param poffDisp Where to return the distance between the symbol
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| 331 | * and address. Optional.
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| 332 | * @param pSymbol Where to return the symbol info.
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| 333 | */
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| 334 | RTDECL(int) RTDbgAsSymbolByAddr(RTDBGAS hDbgAs, RTUINTPTR Addr, PRTINTPTR poffDisp, PRTDBGSYMBOL pSymbol);
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| 335 |
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| 336 | /**
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| 337 | * Query a symbol by address.
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| 338 | *
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| 339 | * @returns IPRT status code. See RTDbgModSymbolAddrA for more specific ones.
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| 340 | * @retval VERR_INVALID_HANDLE if hDbgAs is invalid.
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| 341 | * @retval VERR_NOT_FOUND if the address couldn't be mapped to a module.
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| 342 | *
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| 343 | * @param hDbgAs The address space handle.
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| 344 | * @param Addr The address which closest symbol is requested.
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| 345 | * @param poffDisp Where to return the distance between the symbol
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| 346 | * and address. Optional.
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| 347 | * @param ppSymbol Where to return the pointer to the allocated
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| 348 | * symbol info. Always set. Free with RTDbgSymbolFree.
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| 349 | */
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| 350 | RTDECL(int) RTDbgAsSymbolByAddrA(RTDBGAS hDbgAs, RTUINTPTR Addr, PRTINTPTR poffDisp, PRTDBGSYMBOL *ppSymbol);
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| 351 |
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| 352 | /**
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| 353 | * Query a symbol by name.
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| 354 | *
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| 355 | * @returns IPRT status code.
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| 356 | * @retval VERR_SYMBOL_NOT_FOUND if not found.
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| 357 | *
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| 358 | * @param hDbgAs The address space handle.
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| 359 | * @param pszSymbol The symbol name.
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| 360 | * @param pSymbol Where to return the symbol info.
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| 361 | */
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| 362 | RTDECL(int) RTDbgAsSymbolByName(RTDBGAS hDbgAs, const char *pszSymbol, PRTDBGSYMBOL pSymbol);
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| 363 |
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| 364 | /**
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| 365 | * Query a symbol by name.
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| 366 | *
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| 367 | * @returns IPRT status code.
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| 368 | * @retval VERR_SYMBOL_NOT_FOUND if not found.
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| 369 | *
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| 370 | * @param hDbgAs The address space handle.
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| 371 | * @param pszSymbol The symbol name.
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| 372 | * @param ppSymbol Where to return the pointer to the allocated
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| 373 | * symbol info. Always set. Free with RTDbgSymbolFree.
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| 374 | */
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| 375 | RTDECL(int) RTDbgAsSymbolByNameA(RTDBGAS hDbgAs, const char *pszSymbol, PRTDBGSYMBOL *ppSymbol);
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| 376 |
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| 377 | /**
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| 378 | * Query a line number by address.
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| 379 | *
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| 380 | * @returns IPRT status code. See RTDbgModSymbolAddrA for more specific ones.
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| 381 | * @retval VERR_INVALID_HANDLE if hDbgAs is invalid.
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| 382 | * @retval VERR_NOT_FOUND if the address couldn't be mapped to a module.
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| 383 | *
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| 384 | * @param hDbgAs The address space handle.
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| 385 | * @param Addr The address which closest symbol is requested.
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| 386 | * @param poffDisp Where to return the distance between the line
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| 387 | * number and address.
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| 388 | * @param pLine Where to return the line number information.
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| 389 | */
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| 390 | RTDECL(int) RTDbgAs(RTDBGAS hDbgAs, RTUINTPTR Addr, PRTINTPTR poffDisp, PRTDBGLINE pLine);
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| 391 |
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| 392 | /**
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| 393 | * Query a line number by address.
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| 394 | *
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| 395 | * @returns IPRT status code. See RTDbgModSymbolAddrA for more specific ones.
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| 396 | * @retval VERR_INVALID_HANDLE if hDbgAs is invalid.
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| 397 | * @retval VERR_NOT_FOUND if the address couldn't be mapped to a module.
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| 398 | *
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| 399 | * @param hDbgAs The address space handle.
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| 400 | * @param Addr The address which closest symbol is requested.
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| 401 | * @param poffDisp Where to return the distance between the line
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| 402 | * number and address.
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| 403 | * @param ppLine Where to return the pointer to the allocated line
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| 404 | * number info. Always set. Free with RTDbgLineFree.
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| 405 | */
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| 406 | RTDECL(int) RTDbgAsLineByAddrA(RTDBGAS hDbgAs, RTUINTPTR Addr, PRTINTPTR poffDisp, PRTDBGLINE *ppLine);
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| 407 |
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| 408 | /** @todo Missing some bits here. */
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| 409 |
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| 410 | /** @} */
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| 411 |
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| 412 |
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| 413 | /** @defgroup grp_rt_dbgmod RTDbgMod - Debug Module Interpreter
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| 414 | * @{
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| 415 | */
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| 416 | RTDECL(int) RTDbgModCreate(PRTDBGMOD phDbgMod, const char *pszName, const char *pszImgFile, const char *pszDbgFile);
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| 417 | RTDECL(int) RTDbgModDestroy(RTDBGMOD hDbgMod);
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| 418 | RTDECL(uint32_t) RTDbgModRetain(RTDBGMOD hDbgMod);
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| 419 | RTDECL(uint32_t) RTDbgModRelease(RTDBGMOD hDbgMod);
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| 420 | RTDECL(const char *) RTDbgModName(RTDBGMOD hDbgMod);
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| 421 | RTDECL(RTUINTPTR) RTDbgModImageSize(RTDBGMOD hDbgMod);
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| 422 | RTDECL(RTUINTPTR) RTDbgModSegmentSize(RTDBGMOD hDbgMod, RTDBGSEGIDX iSeg);
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| 423 | RTDECL(RTDBGSEGIDX) RTDbgModSegmentCount(RTDBGMOD hDbgMod);
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| 424 |
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| 425 | RTDECL(int) RTDbgModSymbolAdd(RTDBGMOD hDbgMod, const char *pszSymbol, RTDBGSEGIDX iSeg, RTUINTPTR off, uint32_t cb);
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| 426 | RTDECL(uint32_t) RTDbgModSymbolCount(RTDBGMOD hDbgMod);
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| 427 | RTDECL(int) RTDbgModSymbolByIndex(RTDBGMOD hDbgMod, uint32_t iSymbol, PRTDBGSYMBOL pSymbol);
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| 428 | RTDECL(int) RTDbgModSymbolByAddr(RTDBGMOD hDbgMod, RTDBGSEGIDX iSeg, RTUINTPTR off, PRTINTPTR poffDisp, PRTDBGSYMBOL pSymbol);
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| 429 | RTDECL(int) RTDbgModSymbolByAddrA(RTDBGMOD hDbgMod, RTDBGSEGIDX iSeg, RTUINTPTR off, PRTINTPTR poffDisp, PRTDBGSYMBOL *ppSymbol);
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| 430 | RTDECL(int) RTDbgModSymbolByName(RTDBGMOD hDbgMod, const char *pszSymbol, PRTDBGSYMBOL pSymbol);
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| 431 | RTDECL(int) RTDbgModSymbolByNameA(RTDBGMOD hDbgMod, const char *pszSymbol, PRTDBGSYMBOL *ppSymbol);
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| 432 |
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| 433 | RTDECL(int) RTDbgModLineByAddr(RTDBGMOD hDbgMod, RTDBGSEGIDX iSeg, RTUINTPTR off, PRTINTPTR poffDisp, PRTDBGLINE pLine);
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| 434 | RTDECL(int) RTDbgModLineByAddrA(RTDBGMOD hDbgMod, RTDBGSEGIDX iSeg, RTUINTPTR off, PRTINTPTR poffDisp, PRTDBGLINE *ppLine);
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| 435 | /** @} */
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| 436 |
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| 437 | /** @} */
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| 438 |
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| 439 | __END_DECLS
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| 440 |
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| 441 | #endif
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| 442 |
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