1 | /* $Id: dbgmoddeferred.cpp 83084 2020-02-15 15:16:11Z vboxsync $ */
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2 | /** @file
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3 | * IPRT - Debug Module Deferred Loading Stub.
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4 | */
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5 |
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6 | /*
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7 | * Copyright (C) 2013-2020 Oracle Corporation
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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 | * The contents of this file may alternatively be used under the terms
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18 | * of the Common Development and Distribution License Version 1.0
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19 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
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20 | * VirtualBox OSE distribution, in which case the provisions of the
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21 | * CDDL are applicable instead of those of the GPL.
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22 | *
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23 | * You may elect to license modified versions of this file under the
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24 | * terms and conditions of either the GPL or the CDDL or both.
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25 | */
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26 |
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27 |
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28 | /*********************************************************************************************************************************
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29 | * Header Files *
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30 | *********************************************************************************************************************************/
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31 | #include <iprt/dbg.h>
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32 | #include "internal/iprt.h"
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33 |
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34 | #include <iprt/asm.h>
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35 | #include <iprt/assert.h>
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36 | #include <iprt/err.h>
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37 | #include <iprt/mem.h>
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38 | #include <iprt/param.h>
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39 | #include <iprt/path.h>
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40 | #include <iprt/string.h>
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41 | #include "internal/dbgmod.h"
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42 | #include "internal/magics.h"
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43 |
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44 |
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45 |
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46 | /**
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47 | * Releases the instance data.
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48 | *
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49 | * @param pThis The instance data.
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50 | */
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51 | static void rtDbgModDeferredReleaseInstanceData(PRTDBGMODDEFERRED pThis)
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52 | {
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53 | AssertPtr(pThis);
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54 | Assert(pThis->u32Magic == RTDBGMODDEFERRED_MAGIC);
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55 | uint32_t cRefs = ASMAtomicDecU32(&pThis->cRefs); Assert(cRefs < 8);
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56 | if (!cRefs)
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57 | {
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58 | RTDbgCfgRelease(pThis->hDbgCfg);
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59 | pThis->hDbgCfg = NIL_RTDBGCFG;
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60 | pThis->u32Magic = RTDBGMODDEFERRED_MAGIC_DEAD;
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61 | RTMemFree(pThis);
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62 | }
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63 | }
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64 |
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65 |
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66 | /**
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67 | * Does the deferred loading of the real data (image and/or debug info).
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68 | *
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69 | * @returns VINF_SUCCESS or VERR_DBG_DEFERRED_LOAD_FAILED.
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70 | * @param pMod The generic module instance data.
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71 | * @param fForcedRetry Whether it's a forced retry by one of the
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72 | * pfnTryOpen methods.
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73 | */
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74 | static int rtDbgModDeferredDoIt(PRTDBGMODINT pMod, bool fForcedRetry)
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75 | {
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76 | RTCritSectEnter(&pMod->CritSect);
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77 |
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78 | int rc;
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79 | if (!pMod->fDeferredFailed || fForcedRetry)
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80 | {
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81 | bool const fDbgVt = pMod->pDbgVt == &g_rtDbgModVtDbgDeferred;
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82 | bool const fImgVt = pMod->pImgVt == &g_rtDbgModVtImgDeferred;
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83 | AssertReturnStmt(fDbgVt || fImgVt, RTCritSectLeave(&pMod->CritSect), VERR_INTERNAL_ERROR_5);
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84 |
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85 | PRTDBGMODDEFERRED pThis = (PRTDBGMODDEFERRED)(fDbgVt ? pMod->pvDbgPriv : pMod->pvImgPriv);
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86 |
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87 | /* Reset the method tables and private data pointes so the deferred loading
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88 | procedure can figure out what to do and won't get confused. */
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89 | if (fDbgVt)
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90 | {
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91 | pMod->pvDbgPriv = NULL;
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92 | pMod->pDbgVt = NULL;
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93 | }
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94 |
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95 | if (fImgVt)
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96 | {
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97 | pMod->pvImgPriv = NULL;
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98 | pMod->pImgVt = NULL;
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99 | }
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100 |
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101 | /* Do the deferred loading. */
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102 | rc = pThis->pfnDeferred(pMod, pThis);
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103 | if (RT_SUCCESS(rc))
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104 | {
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105 | Assert(!fDbgVt || pMod->pDbgVt != NULL);
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106 | Assert(!fImgVt || pMod->pImgVt != NULL);
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107 |
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108 | pMod->fDeferred = false;
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109 | pMod->fDeferredFailed = false;
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110 |
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111 | rtDbgModDeferredReleaseInstanceData(pThis);
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112 | if (fImgVt && fDbgVt)
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113 | rtDbgModDeferredReleaseInstanceData(pThis);
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114 | }
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115 | else
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116 | {
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117 | /* Failed, bail out and restore the deferred setup. */
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118 | pMod->fDeferredFailed = true;
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119 |
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120 | if (fDbgVt)
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121 | {
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122 | Assert(!pMod->pDbgVt);
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123 | pMod->pDbgVt = &g_rtDbgModVtDbgDeferred;
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124 | pMod->pvDbgPriv = pThis;
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125 | }
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126 |
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127 | if (fImgVt)
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128 | {
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129 | Assert(!pMod->pImgVt);
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130 | pMod->pImgVt = &g_rtDbgModVtImgDeferred;
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131 | pMod->pvImgPriv = pThis;
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132 | }
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133 | }
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134 | }
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135 | else
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136 | rc = VERR_DBG_DEFERRED_LOAD_FAILED;
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137 |
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138 | RTCritSectLeave(&pMod->CritSect);
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139 | return rc;
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140 | }
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141 |
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142 |
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143 |
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144 |
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145 | /*
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146 | *
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147 | * D e b u g I n f o M e t h o d s
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148 | * D e b u g I n f o M e t h o d s
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149 | * D e b u g I n f o M e t h o d s
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150 | *
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151 | */
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152 |
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153 | /** @interface_method_impl{RTDBGMODVTDBG,pfnUnwindFrame} */
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154 | static DECLCALLBACK(int)
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155 | rtDbgModDeferredDbg_UnwindFrame(PRTDBGMODINT pMod, RTDBGSEGIDX iSeg, RTUINTPTR off, PRTDBGUNWINDSTATE pState)
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156 | {
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157 | Assert(((PRTDBGMODDEFERRED)pMod->pvDbgPriv)->u32Magic == RTDBGMODDEFERRED_MAGIC);
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158 | int rc = rtDbgModDeferredDoIt(pMod, false /*fForceRetry*/);
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159 | if (RT_SUCCESS(rc))
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160 | rc = pMod->pDbgVt->pfnUnwindFrame(pMod, iSeg, off, pState);
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161 | return rc;
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162 | }
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163 |
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164 |
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165 | /** @interface_method_impl{RTDBGMODVTDBG,pfnLineByAddr} */
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166 | static DECLCALLBACK(int) rtDbgModDeferredDbg_LineByAddr(PRTDBGMODINT pMod, RTDBGSEGIDX iSeg, RTUINTPTR off,
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167 | PRTINTPTR poffDisp, PRTDBGLINE pLineInfo)
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168 | {
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169 | Assert(((PRTDBGMODDEFERRED)pMod->pvDbgPriv)->u32Magic == RTDBGMODDEFERRED_MAGIC);
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170 | int rc = rtDbgModDeferredDoIt(pMod, false /*fForceRetry*/);
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171 | if (RT_SUCCESS(rc))
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172 | rc = pMod->pDbgVt->pfnLineByAddr(pMod, iSeg, off, poffDisp, pLineInfo);
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173 | return rc;
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174 | }
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175 |
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176 |
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177 | /** @interface_method_impl{RTDBGMODVTDBG,pfnLineByOrdinal} */
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178 | static DECLCALLBACK(int) rtDbgModDeferredDbg_LineByOrdinal(PRTDBGMODINT pMod, uint32_t iOrdinal, PRTDBGLINE pLineInfo)
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179 | {
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180 | Assert(((PRTDBGMODDEFERRED)pMod->pvDbgPriv)->u32Magic == RTDBGMODDEFERRED_MAGIC);
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181 | int rc = rtDbgModDeferredDoIt(pMod, false /*fForceRetry*/);
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182 | if (RT_SUCCESS(rc))
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183 | rc = pMod->pDbgVt->pfnLineByOrdinal(pMod, iOrdinal, pLineInfo);
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184 | return rc;
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185 | }
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186 |
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187 |
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188 | /** @interface_method_impl{RTDBGMODVTDBG,pfnLineCount} */
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189 | static DECLCALLBACK(uint32_t) rtDbgModDeferredDbg_LineCount(PRTDBGMODINT pMod)
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190 | {
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191 | Assert(((PRTDBGMODDEFERRED)pMod->pvDbgPriv)->u32Magic == RTDBGMODDEFERRED_MAGIC);
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192 | int rc = rtDbgModDeferredDoIt(pMod, false /*fForceRetry*/);
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193 | if (RT_SUCCESS(rc))
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194 | return pMod->pDbgVt->pfnLineCount(pMod);
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195 | return 0;
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196 | }
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197 |
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198 |
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199 | /** @interface_method_impl{RTDBGMODVTDBG,pfnLineAdd} */
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200 | static DECLCALLBACK(int) rtDbgModDeferredDbg_LineAdd(PRTDBGMODINT pMod, const char *pszFile, size_t cchFile, uint32_t uLineNo,
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201 | uint32_t iSeg, RTUINTPTR off, uint32_t *piOrdinal)
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202 | {
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203 | Assert(((PRTDBGMODDEFERRED)pMod->pvDbgPriv)->u32Magic == RTDBGMODDEFERRED_MAGIC);
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204 | int rc = rtDbgModDeferredDoIt(pMod, false /*fForceRetry*/);
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205 | if (RT_SUCCESS(rc))
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206 | rc = pMod->pDbgVt->pfnLineAdd(pMod, pszFile, cchFile, uLineNo, iSeg, off, piOrdinal);
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207 | return rc;
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208 | }
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209 |
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210 |
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211 | /**
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212 | * Fill in symbol info for the fake start symbol.
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213 | *
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214 | * @returns VINF_SUCCESS
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215 | * @param pThis The deferred load data.
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216 | * @param pSymInfo The output structure.
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217 | */
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218 | static int rtDbgModDeferredDbgSymInfo_Start(PRTDBGMODDEFERRED pThis, PRTDBGSYMBOL pSymInfo)
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219 | {
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220 | pSymInfo->Value = 0;
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221 | pSymInfo->cb = pThis->cbImage;
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222 | pSymInfo->offSeg = 0;
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223 | pSymInfo->iSeg = 0;
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224 | pSymInfo->fFlags = 0;
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225 | pSymInfo->iOrdinal = 0;
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226 | strcpy(pSymInfo->szName, "DeferredStart");
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227 | return VINF_SUCCESS;
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228 | }
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229 |
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230 |
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231 | /**
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232 | * Fill in symbol info for the fake last symbol.
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233 | *
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234 | * @returns VINF_SUCCESS
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235 | * @param pThis The deferred load data.
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236 | * @param pSymInfo The output structure.
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237 | */
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238 | static int rtDbgModDeferredDbgSymInfo_Last(PRTDBGMODDEFERRED pThis, PRTDBGSYMBOL pSymInfo)
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239 | {
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240 | pSymInfo->Value = pThis->cbImage - 1;
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241 | pSymInfo->cb = 0;
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242 | pSymInfo->offSeg = pThis->cbImage - 1;
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243 | pSymInfo->iSeg = 0;
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244 | pSymInfo->fFlags = 0;
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245 | pSymInfo->iOrdinal = 1;
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246 | strcpy(pSymInfo->szName, "DeferredLast");
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247 | return VINF_SUCCESS;
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248 | }
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249 |
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250 |
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251 | /** @interface_method_impl{RTDBGMODVTDBG,pfnSymbolByAddr} */
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252 | static DECLCALLBACK(int) rtDbgModDeferredDbg_SymbolByAddr(PRTDBGMODINT pMod, RTDBGSEGIDX iSeg, RTUINTPTR off, uint32_t fFlags,
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253 | PRTINTPTR poffDisp, PRTDBGSYMBOL pSymInfo)
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254 | {
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255 | Assert(((PRTDBGMODDEFERRED)pMod->pvDbgPriv)->u32Magic == RTDBGMODDEFERRED_MAGIC);
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256 | if ( (fFlags & RTDBGSYMADDR_FLAGS_SKIP_ABS_IN_DEFERRED)
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257 | && iSeg == RTDBGSEGIDX_ABS)
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258 | return VERR_SYMBOL_NOT_FOUND;
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259 |
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260 | int rc = rtDbgModDeferredDoIt(pMod, false /*fForceRetry*/);
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261 | if (RT_SUCCESS(rc))
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262 | rc = pMod->pDbgVt->pfnSymbolByAddr(pMod, iSeg, off, fFlags, poffDisp, pSymInfo);
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263 | else
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264 | {
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265 | PRTDBGMODDEFERRED pThis = (PRTDBGMODDEFERRED)pMod->pvDbgPriv;
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266 | if (off == 0)
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267 | rc = rtDbgModDeferredDbgSymInfo_Start(pThis, pSymInfo);
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268 | else if (off >= pThis->cbImage - 1 || (fFlags & RTDBGSYMADDR_FLAGS_GREATER_OR_EQUAL))
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269 | rc = rtDbgModDeferredDbgSymInfo_Last(pThis, pSymInfo);
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270 | else
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271 | rc = rtDbgModDeferredDbgSymInfo_Start(pThis, pSymInfo);
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272 | if (poffDisp)
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273 | *poffDisp = off - pSymInfo->offSeg;
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274 | }
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275 | return rc;
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276 | }
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277 |
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278 |
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279 | /** @interface_method_impl{RTDBGMODVTDBG,pfnSymbolByName} */
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280 | static DECLCALLBACK(int) rtDbgModDeferredDbg_SymbolByName(PRTDBGMODINT pMod, const char *pszSymbol, size_t cchSymbol,
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281 | PRTDBGSYMBOL pSymInfo)
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282 | {
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283 | Assert(((PRTDBGMODDEFERRED)pMod->pvDbgPriv)->u32Magic == RTDBGMODDEFERRED_MAGIC);
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284 | int rc = rtDbgModDeferredDoIt(pMod, false /*fForceRetry*/);
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285 | if (RT_SUCCESS(rc))
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286 | rc = pMod->pDbgVt->pfnSymbolByName(pMod, pszSymbol, cchSymbol, pSymInfo);
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287 | else
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288 | {
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289 | PRTDBGMODDEFERRED pThis = (PRTDBGMODDEFERRED)pMod->pvDbgPriv;
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290 | if ( cchSymbol == sizeof("DeferredStart") - 1
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291 | && !memcmp(pszSymbol, RT_STR_TUPLE("DeferredStart")))
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292 | rc = rtDbgModDeferredDbgSymInfo_Start(pThis, pSymInfo);
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293 | else if ( cchSymbol == sizeof("DeferredLast") - 1
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294 | && !memcmp(pszSymbol, RT_STR_TUPLE("DeferredLast")))
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295 | rc = rtDbgModDeferredDbgSymInfo_Last(pThis, pSymInfo);
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296 | else
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297 | rc = VERR_SYMBOL_NOT_FOUND;
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298 | }
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299 | return rc;
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300 | }
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301 |
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302 |
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303 | /** @interface_method_impl{RTDBGMODVTDBG,pfnSymbolByOrdinal} */
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304 | static DECLCALLBACK(int) rtDbgModDeferredDbg_SymbolByOrdinal(PRTDBGMODINT pMod, uint32_t iOrdinal, PRTDBGSYMBOL pSymInfo)
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305 | {
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306 | Assert(((PRTDBGMODDEFERRED)pMod->pvDbgPriv)->u32Magic == RTDBGMODDEFERRED_MAGIC);
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307 | int rc = rtDbgModDeferredDoIt(pMod, false /*fForceRetry*/);
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308 | if (RT_SUCCESS(rc))
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309 | rc = pMod->pDbgVt->pfnSymbolByOrdinal(pMod, iOrdinal, pSymInfo);
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310 | else
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311 | {
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312 | PRTDBGMODDEFERRED pThis = (PRTDBGMODDEFERRED)pMod->pvDbgPriv;
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313 | if (iOrdinal == 0)
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314 | rc = rtDbgModDeferredDbgSymInfo_Start(pThis, pSymInfo);
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315 | else if (iOrdinal == 1)
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316 | rc = rtDbgModDeferredDbgSymInfo_Last(pThis, pSymInfo);
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317 | else
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318 | rc = VERR_SYMBOL_NOT_FOUND;
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319 | }
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320 | return rc;
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321 | }
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322 |
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323 |
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324 | /** @interface_method_impl{RTDBGMODVTDBG,pfnSymbolCount} */
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325 | static DECLCALLBACK(uint32_t) rtDbgModDeferredDbg_SymbolCount(PRTDBGMODINT pMod)
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326 | {
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327 | Assert(((PRTDBGMODDEFERRED)pMod->pvDbgPriv)->u32Magic == RTDBGMODDEFERRED_MAGIC);
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328 | int rc = rtDbgModDeferredDoIt(pMod, false /*fForceRetry*/);
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329 | if (RT_SUCCESS(rc))
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330 | return pMod->pDbgVt->pfnSymbolCount(pMod);
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331 | return 2;
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332 | }
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333 |
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334 |
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335 | /** @interface_method_impl{RTDBGMODVTDBG,pfnSymbolAdd} */
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336 | static DECLCALLBACK(int) rtDbgModDeferredDbg_SymbolAdd(PRTDBGMODINT pMod, const char *pszSymbol, size_t cchSymbol,
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337 | RTDBGSEGIDX iSeg, RTUINTPTR off, RTUINTPTR cb, uint32_t fFlags,
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338 | uint32_t *piOrdinal)
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339 | {
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340 | Assert(((PRTDBGMODDEFERRED)pMod->pvDbgPriv)->u32Magic == RTDBGMODDEFERRED_MAGIC);
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341 | int rc = rtDbgModDeferredDoIt(pMod, false /*fForceRetry*/);
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342 | if (RT_SUCCESS(rc))
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343 | rc = pMod->pDbgVt->pfnSymbolAdd(pMod, pszSymbol, cchSymbol, iSeg, off, cb, fFlags, piOrdinal);
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344 | return rc;
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345 | }
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346 |
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347 |
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348 | /** @interface_method_impl{RTDBGMODVTDBG,pfnSegmentByIndex} */
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349 | static DECLCALLBACK(int) rtDbgModDeferredDbg_SegmentByIndex(PRTDBGMODINT pMod, RTDBGSEGIDX iSeg, PRTDBGSEGMENT pSegInfo)
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350 | {
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351 | Assert(((PRTDBGMODDEFERRED)pMod->pvDbgPriv)->u32Magic == RTDBGMODDEFERRED_MAGIC);
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352 | int rc = rtDbgModDeferredDoIt(pMod, false /*fForceRetry*/);
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353 | if (RT_SUCCESS(rc))
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354 | rc = pMod->pDbgVt->pfnSegmentByIndex(pMod, iSeg, pSegInfo);
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355 | else if (iSeg == 0)
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356 | {
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357 | PRTDBGMODDEFERRED pThis = (PRTDBGMODDEFERRED)pMod->pvDbgPriv;
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358 | pSegInfo->Address = 0;
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359 | pSegInfo->uRva = 0;
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360 | pSegInfo->cb = pThis->cbImage;
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361 | pSegInfo->fFlags = 0;
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362 | pSegInfo->iSeg = 0;
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363 | memcpy(pSegInfo->szName, RT_STR_TUPLE("LATER"));
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364 | rc = VINF_SUCCESS;
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365 | }
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366 | else
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367 | rc = VERR_DBG_INVALID_SEGMENT_INDEX;
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368 | return rc;
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369 | }
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370 |
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371 |
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372 | /** @interface_method_impl{RTDBGMODVTDBG,pfnSegmentCount} */
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373 | static DECLCALLBACK(RTDBGSEGIDX) rtDbgModDeferredDbg_SegmentCount(PRTDBGMODINT pMod)
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374 | {
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375 | Assert(((PRTDBGMODDEFERRED)pMod->pvDbgPriv)->u32Magic == RTDBGMODDEFERRED_MAGIC);
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376 | int rc = rtDbgModDeferredDoIt(pMod, false /*fForceRetry*/);
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377 | if (RT_SUCCESS(rc))
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378 | return pMod->pDbgVt->pfnSegmentCount(pMod);
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379 | return 1;
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380 | }
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381 |
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382 |
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383 | /** @interface_method_impl{RTDBGMODVTDBG,pfnSegmentAdd} */
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384 | static DECLCALLBACK(int) rtDbgModDeferredDbg_SegmentAdd(PRTDBGMODINT pMod, RTUINTPTR uRva, RTUINTPTR cb, const char *pszName,
|
---|
385 | size_t cchName, uint32_t fFlags, PRTDBGSEGIDX piSeg)
|
---|
386 | {
|
---|
387 | Assert(((PRTDBGMODDEFERRED)pMod->pvDbgPriv)->u32Magic == RTDBGMODDEFERRED_MAGIC);
|
---|
388 | int rc = rtDbgModDeferredDoIt(pMod, false /*fForceRetry*/);
|
---|
389 | if (RT_SUCCESS(rc))
|
---|
390 | rc = pMod->pDbgVt->pfnSegmentAdd(pMod, uRva, cb, pszName, cchName, fFlags, piSeg);
|
---|
391 | return rc;
|
---|
392 | }
|
---|
393 |
|
---|
394 |
|
---|
395 | /** @interface_method_impl{RTDBGMODVTDBG,pfnImageSize} */
|
---|
396 | static DECLCALLBACK(RTUINTPTR) rtDbgModDeferredDbg_ImageSize(PRTDBGMODINT pMod)
|
---|
397 | {
|
---|
398 | PRTDBGMODDEFERRED pThis = (PRTDBGMODDEFERRED)pMod->pvDbgPriv;
|
---|
399 | Assert(pThis->u32Magic == RTDBGMODDEFERRED_MAGIC);
|
---|
400 | return pThis->cbImage;
|
---|
401 | }
|
---|
402 |
|
---|
403 |
|
---|
404 | /** @interface_method_impl{RTDBGMODVTDBG,pfnRvaToSegOff} */
|
---|
405 | static DECLCALLBACK(RTDBGSEGIDX) rtDbgModDeferredDbg_RvaToSegOff(PRTDBGMODINT pMod, RTUINTPTR uRva, PRTUINTPTR poffSeg)
|
---|
406 | {
|
---|
407 | Assert(((PRTDBGMODDEFERRED)pMod->pvDbgPriv)->u32Magic == RTDBGMODDEFERRED_MAGIC);
|
---|
408 | int rc = rtDbgModDeferredDoIt(pMod, false /*fForceRetry*/);
|
---|
409 | if (RT_SUCCESS(rc))
|
---|
410 | return pMod->pDbgVt->pfnRvaToSegOff(pMod, uRva, poffSeg);
|
---|
411 | return 0;
|
---|
412 | }
|
---|
413 |
|
---|
414 |
|
---|
415 | /** @interface_method_impl{RTDBGMODVTDBG,pfnClose} */
|
---|
416 | static DECLCALLBACK(int) rtDbgModDeferredDbg_Close(PRTDBGMODINT pMod)
|
---|
417 | {
|
---|
418 | rtDbgModDeferredReleaseInstanceData((PRTDBGMODDEFERRED)pMod->pvDbgPriv);
|
---|
419 | return VINF_SUCCESS;
|
---|
420 | }
|
---|
421 |
|
---|
422 |
|
---|
423 | /** @interface_method_impl{RTDBGMODVTDBG,pfnTryOpen} */
|
---|
424 | static DECLCALLBACK(int) rtDbgModDeferredDbg_TryOpen(PRTDBGMODINT pMod, RTLDRARCH enmArch)
|
---|
425 | {
|
---|
426 | NOREF(enmArch);
|
---|
427 | return rtDbgModDeferredDoIt(pMod, true /*fForceRetry*/);
|
---|
428 | }
|
---|
429 |
|
---|
430 |
|
---|
431 |
|
---|
432 | /** Virtual function table for the deferred debug info reader. */
|
---|
433 | DECL_HIDDEN_CONST(RTDBGMODVTDBG) const g_rtDbgModVtDbgDeferred =
|
---|
434 | {
|
---|
435 | /*.u32Magic = */ RTDBGMODVTDBG_MAGIC,
|
---|
436 | /*.fSupports = */ RT_DBGTYPE_MAP,
|
---|
437 | /*.pszName = */ "deferred",
|
---|
438 | /*.pfnTryOpen = */ rtDbgModDeferredDbg_TryOpen,
|
---|
439 | /*.pfnClose = */ rtDbgModDeferredDbg_Close,
|
---|
440 |
|
---|
441 | /*.pfnRvaToSegOff = */ rtDbgModDeferredDbg_RvaToSegOff,
|
---|
442 | /*.pfnImageSize = */ rtDbgModDeferredDbg_ImageSize,
|
---|
443 |
|
---|
444 | /*.pfnSegmentAdd = */ rtDbgModDeferredDbg_SegmentAdd,
|
---|
445 | /*.pfnSegmentCount = */ rtDbgModDeferredDbg_SegmentCount,
|
---|
446 | /*.pfnSegmentByIndex = */ rtDbgModDeferredDbg_SegmentByIndex,
|
---|
447 |
|
---|
448 | /*.pfnSymbolAdd = */ rtDbgModDeferredDbg_SymbolAdd,
|
---|
449 | /*.pfnSymbolCount = */ rtDbgModDeferredDbg_SymbolCount,
|
---|
450 | /*.pfnSymbolByOrdinal = */ rtDbgModDeferredDbg_SymbolByOrdinal,
|
---|
451 | /*.pfnSymbolByName = */ rtDbgModDeferredDbg_SymbolByName,
|
---|
452 | /*.pfnSymbolByAddr = */ rtDbgModDeferredDbg_SymbolByAddr,
|
---|
453 |
|
---|
454 | /*.pfnLineAdd = */ rtDbgModDeferredDbg_LineAdd,
|
---|
455 | /*.pfnLineCount = */ rtDbgModDeferredDbg_LineCount,
|
---|
456 | /*.pfnLineByOrdinal = */ rtDbgModDeferredDbg_LineByOrdinal,
|
---|
457 | /*.pfnLineByAddr = */ rtDbgModDeferredDbg_LineByAddr,
|
---|
458 |
|
---|
459 | /*.pfnUnwindFrame = */ rtDbgModDeferredDbg_UnwindFrame,
|
---|
460 |
|
---|
461 | /*.u32EndMagic = */ RTDBGMODVTDBG_MAGIC
|
---|
462 | };
|
---|
463 |
|
---|
464 |
|
---|
465 |
|
---|
466 |
|
---|
467 | /*
|
---|
468 | *
|
---|
469 | * I m a g e M e t h o d s
|
---|
470 | * I m a g e M e t h o d s
|
---|
471 | * I m a g e M e t h o d s
|
---|
472 | *
|
---|
473 | */
|
---|
474 |
|
---|
475 | /** @interface_method_impl{RTDBGMODVTIMG,pfnUnwindFrame} */
|
---|
476 | static DECLCALLBACK(int)
|
---|
477 | rtDbgModDeferredImg_UnwindFrame(PRTDBGMODINT pMod, RTDBGSEGIDX iSeg, RTUINTPTR off, PRTDBGUNWINDSTATE pState)
|
---|
478 | {
|
---|
479 | Assert(((PRTDBGMODDEFERRED)pMod->pvImgPriv)->u32Magic == RTDBGMODDEFERRED_MAGIC);
|
---|
480 | int rc = rtDbgModDeferredDoIt(pMod, false /*fForceRetry*/);
|
---|
481 | if (RT_SUCCESS(rc))
|
---|
482 | rc = pMod->pImgVt->pfnUnwindFrame(pMod, iSeg, off, pState);
|
---|
483 | return rc;
|
---|
484 | }
|
---|
485 |
|
---|
486 |
|
---|
487 | /** @interface_method_impl{RTDBGMODVTIMG,pfnQueryProp} */
|
---|
488 | static DECLCALLBACK(int)
|
---|
489 | rtDbgModDeferredImg_QueryProp(PRTDBGMODINT pMod, RTLDRPROP enmProp, void *pvBuf, size_t cbBuf, size_t *pcbRet)
|
---|
490 | {
|
---|
491 | Assert(((PRTDBGMODDEFERRED)pMod->pvImgPriv)->u32Magic == RTDBGMODDEFERRED_MAGIC);
|
---|
492 | int rc = rtDbgModDeferredDoIt(pMod, false /*fForceRetry*/);
|
---|
493 | if (RT_SUCCESS(rc))
|
---|
494 | rc = pMod->pImgVt->pfnQueryProp(pMod, enmProp, pvBuf, cbBuf, pcbRet);
|
---|
495 | return rc;
|
---|
496 | }
|
---|
497 |
|
---|
498 |
|
---|
499 | /** @interface_method_impl{RTDBGMODVTIMG,pfnGetArch} */
|
---|
500 | static DECLCALLBACK(RTLDRARCH) rtDbgModDeferredImg_GetArch(PRTDBGMODINT pMod)
|
---|
501 | {
|
---|
502 | Assert(((PRTDBGMODDEFERRED)pMod->pvImgPriv)->u32Magic == RTDBGMODDEFERRED_MAGIC);
|
---|
503 |
|
---|
504 | RTLDRARCH enmArch;
|
---|
505 | int rc = rtDbgModDeferredDoIt(pMod, false /*fForceRetry*/);
|
---|
506 | if (RT_SUCCESS(rc))
|
---|
507 | enmArch = pMod->pImgVt->pfnGetArch(pMod);
|
---|
508 | else
|
---|
509 | enmArch = RTLDRARCH_WHATEVER;
|
---|
510 | return enmArch;
|
---|
511 | }
|
---|
512 |
|
---|
513 |
|
---|
514 | /** @interface_method_impl{RTDBGMODVTIMG,pfnGetFormat} */
|
---|
515 | static DECLCALLBACK(RTLDRFMT) rtDbgModDeferredImg_GetFormat(PRTDBGMODINT pMod)
|
---|
516 | {
|
---|
517 | Assert(((PRTDBGMODDEFERRED)pMod->pvImgPriv)->u32Magic == RTDBGMODDEFERRED_MAGIC);
|
---|
518 |
|
---|
519 | RTLDRFMT enmFmt;
|
---|
520 | int rc = rtDbgModDeferredDoIt(pMod, false /*fForceRetry*/);
|
---|
521 | if (RT_SUCCESS(rc))
|
---|
522 | enmFmt = pMod->pImgVt->pfnGetFormat(pMod);
|
---|
523 | else
|
---|
524 | enmFmt = RTLDRFMT_INVALID;
|
---|
525 | return enmFmt;
|
---|
526 | }
|
---|
527 |
|
---|
528 |
|
---|
529 | /** @interface_method_impl{RTDBGMODVTIMG,pfnReadAt} */
|
---|
530 | static DECLCALLBACK(int) rtDbgModDeferredImg_ReadAt(PRTDBGMODINT pMod, uint32_t iDbgInfoHint, RTFOFF off, void *pvBuf, size_t cb)
|
---|
531 | {
|
---|
532 | Assert(((PRTDBGMODDEFERRED)pMod->pvImgPriv)->u32Magic == RTDBGMODDEFERRED_MAGIC);
|
---|
533 | int rc = rtDbgModDeferredDoIt(pMod, false /*fForceRetry*/);
|
---|
534 | if (RT_SUCCESS(rc))
|
---|
535 | rc = pMod->pImgVt->pfnReadAt(pMod, iDbgInfoHint, off, pvBuf, cb);
|
---|
536 | return rc;
|
---|
537 | }
|
---|
538 |
|
---|
539 |
|
---|
540 | /** @interface_method_impl{RTDBGMODVTIMG,pfnUnmapPart} */
|
---|
541 | static DECLCALLBACK(int) rtDbgModDeferredImg_UnmapPart(PRTDBGMODINT pMod, size_t cb, void const **ppvMap)
|
---|
542 | {
|
---|
543 | Assert(((PRTDBGMODDEFERRED)pMod->pvImgPriv)->u32Magic == RTDBGMODDEFERRED_MAGIC);
|
---|
544 | int rc = rtDbgModDeferredDoIt(pMod, false /*fForceRetry*/);
|
---|
545 | if (RT_SUCCESS(rc))
|
---|
546 | rc = pMod->pImgVt->pfnUnmapPart(pMod, cb, ppvMap);
|
---|
547 | return rc;
|
---|
548 | }
|
---|
549 |
|
---|
550 |
|
---|
551 | /** @interface_method_impl{RTDBGMODVTIMG,pfnMapPart} */
|
---|
552 | static DECLCALLBACK(int) rtDbgModDeferredImg_MapPart(PRTDBGMODINT pMod, uint32_t iDbgInfo, RTFOFF off, size_t cb, void const **ppvMap)
|
---|
553 | {
|
---|
554 | Assert(((PRTDBGMODDEFERRED)pMod->pvImgPriv)->u32Magic == RTDBGMODDEFERRED_MAGIC);
|
---|
555 | int rc = rtDbgModDeferredDoIt(pMod, false /*fForceRetry*/);
|
---|
556 | if (RT_SUCCESS(rc))
|
---|
557 | rc = pMod->pImgVt->pfnMapPart(pMod, iDbgInfo, off, cb, ppvMap);
|
---|
558 | return rc;
|
---|
559 | }
|
---|
560 |
|
---|
561 |
|
---|
562 | /** @interface_method_impl{RTDBGMODVTIMG,pfnImageSize} */
|
---|
563 | static DECLCALLBACK(RTUINTPTR) rtDbgModDeferredImg_ImageSize(PRTDBGMODINT pMod)
|
---|
564 | {
|
---|
565 | PRTDBGMODDEFERRED pThis = (PRTDBGMODDEFERRED)pMod->pvImgPriv;
|
---|
566 | Assert(pThis->u32Magic == RTDBGMODDEFERRED_MAGIC);
|
---|
567 | return pThis->cbImage;
|
---|
568 | }
|
---|
569 |
|
---|
570 |
|
---|
571 | /** @interface_method_impl{RTDBGMODVTIMG,pfnRvaToSegOffset} */
|
---|
572 | static DECLCALLBACK(int) rtDbgModDeferredImg_RvaToSegOffset(PRTDBGMODINT pMod, RTLDRADDR Rva,
|
---|
573 | PRTDBGSEGIDX piSeg, PRTLDRADDR poffSeg)
|
---|
574 | {
|
---|
575 | Assert(((PRTDBGMODDEFERRED)pMod->pvImgPriv)->u32Magic == RTDBGMODDEFERRED_MAGIC);
|
---|
576 | int rc = rtDbgModDeferredDoIt(pMod, false /*fForceRetry*/);
|
---|
577 | if (RT_SUCCESS(rc))
|
---|
578 | rc = pMod->pImgVt->pfnRvaToSegOffset(pMod, Rva, piSeg, poffSeg);
|
---|
579 | return rc;
|
---|
580 | }
|
---|
581 |
|
---|
582 |
|
---|
583 | /** @interface_method_impl{RTDBGMODVTIMG,pfnLinkAddressToSegOffset} */
|
---|
584 | static DECLCALLBACK(int) rtDbgModDeferredImg_LinkAddressToSegOffset(PRTDBGMODINT pMod, RTLDRADDR LinkAddress,
|
---|
585 | PRTDBGSEGIDX piSeg, PRTLDRADDR poffSeg)
|
---|
586 | {
|
---|
587 | Assert(((PRTDBGMODDEFERRED)pMod->pvImgPriv)->u32Magic == RTDBGMODDEFERRED_MAGIC);
|
---|
588 | int rc = rtDbgModDeferredDoIt(pMod, false /*fForceRetry*/);
|
---|
589 | if (RT_SUCCESS(rc))
|
---|
590 | rc = pMod->pImgVt->pfnLinkAddressToSegOffset(pMod, LinkAddress, piSeg, poffSeg);
|
---|
591 | return rc;
|
---|
592 | }
|
---|
593 |
|
---|
594 |
|
---|
595 | /** @interface_method_impl{RTDBGMODVTIMG,pfnEnumSymbols} */
|
---|
596 | static DECLCALLBACK(int) rtDbgModDeferredImg_EnumSymbols(PRTDBGMODINT pMod, uint32_t fFlags, RTLDRADDR BaseAddress,
|
---|
597 | PFNRTLDRENUMSYMS pfnCallback, void *pvUser)
|
---|
598 | {
|
---|
599 | Assert(((PRTDBGMODDEFERRED)pMod->pvImgPriv)->u32Magic == RTDBGMODDEFERRED_MAGIC);
|
---|
600 | int rc = rtDbgModDeferredDoIt(pMod, false /*fForceRetry*/);
|
---|
601 | if (RT_SUCCESS(rc))
|
---|
602 | rc = pMod->pImgVt->pfnEnumSymbols(pMod, fFlags, BaseAddress, pfnCallback, pvUser);
|
---|
603 | return rc;
|
---|
604 | }
|
---|
605 |
|
---|
606 |
|
---|
607 | /** @interface_method_impl{RTDBGMODVTIMG,pfnEnumSegments} */
|
---|
608 | static DECLCALLBACK(int) rtDbgModDeferredImg_EnumSegments(PRTDBGMODINT pMod, PFNRTLDRENUMSEGS pfnCallback, void *pvUser)
|
---|
609 | {
|
---|
610 | Assert(((PRTDBGMODDEFERRED)pMod->pvImgPriv)->u32Magic == RTDBGMODDEFERRED_MAGIC);
|
---|
611 | int rc = rtDbgModDeferredDoIt(pMod, false /*fForceRetry*/);
|
---|
612 | if (RT_SUCCESS(rc))
|
---|
613 | rc = pMod->pImgVt->pfnEnumSegments(pMod, pfnCallback, pvUser);
|
---|
614 | return rc;
|
---|
615 | }
|
---|
616 |
|
---|
617 |
|
---|
618 | /** @interface_method_impl{RTDBGMODVTIMG,pfnEnumDbgInfo} */
|
---|
619 | static DECLCALLBACK(int) rtDbgModDeferredImg_EnumDbgInfo(PRTDBGMODINT pMod, PFNRTLDRENUMDBG pfnCallback, void *pvUser)
|
---|
620 | {
|
---|
621 | Assert(((PRTDBGMODDEFERRED)pMod->pvImgPriv)->u32Magic == RTDBGMODDEFERRED_MAGIC);
|
---|
622 | int rc = rtDbgModDeferredDoIt(pMod, false /*fForceRetry*/);
|
---|
623 | if (RT_SUCCESS(rc))
|
---|
624 | rc = pMod->pImgVt->pfnEnumDbgInfo(pMod, pfnCallback, pvUser);
|
---|
625 | return rc;
|
---|
626 | }
|
---|
627 |
|
---|
628 |
|
---|
629 | /** @interface_method_impl{RTDBGMODVTIMG,pfnClose} */
|
---|
630 | static DECLCALLBACK(int) rtDbgModDeferredImg_Close(PRTDBGMODINT pMod)
|
---|
631 | {
|
---|
632 | rtDbgModDeferredReleaseInstanceData((PRTDBGMODDEFERRED)pMod->pvImgPriv);
|
---|
633 | return VINF_SUCCESS;
|
---|
634 | }
|
---|
635 |
|
---|
636 |
|
---|
637 | /** @interface_method_impl{RTDBGMODVTIMG,pfnTryOpen} */
|
---|
638 | static DECLCALLBACK(int) rtDbgModDeferredImg_TryOpen(PRTDBGMODINT pMod, RTLDRARCH enmArch, uint32_t fLdrFlags)
|
---|
639 | {
|
---|
640 | RT_NOREF(enmArch, fLdrFlags);
|
---|
641 | return rtDbgModDeferredDoIt(pMod, true /*fForceRetry*/);
|
---|
642 | }
|
---|
643 |
|
---|
644 |
|
---|
645 | /** Virtual function table for the RTLdr based image reader. */
|
---|
646 | DECL_HIDDEN_CONST(RTDBGMODVTIMG) const g_rtDbgModVtImgDeferred =
|
---|
647 | {
|
---|
648 | /*.u32Magic = */ RTDBGMODVTIMG_MAGIC,
|
---|
649 | /*.fReserved = */ 0,
|
---|
650 | /*.pszName = */ "deferred",
|
---|
651 | /*.pfnTryOpen = */ rtDbgModDeferredImg_TryOpen,
|
---|
652 | /*.pfnClose = */ rtDbgModDeferredImg_Close,
|
---|
653 | /*.pfnEnumDbgInfo = */ rtDbgModDeferredImg_EnumDbgInfo,
|
---|
654 | /*.pfnEnumSegments = */ rtDbgModDeferredImg_EnumSegments,
|
---|
655 | /*.pfnEnumSymbols = */ rtDbgModDeferredImg_EnumSymbols,
|
---|
656 | /*.pfnGetLoadedSize = */ rtDbgModDeferredImg_ImageSize,
|
---|
657 | /*.pfnLinkAddressToSegOffset = */ rtDbgModDeferredImg_LinkAddressToSegOffset,
|
---|
658 | /*.pfnRvaToSegOffset = */ rtDbgModDeferredImg_RvaToSegOffset,
|
---|
659 | /*.pfnMapPart = */ rtDbgModDeferredImg_MapPart,
|
---|
660 | /*.pfnUnmapPart = */ rtDbgModDeferredImg_UnmapPart,
|
---|
661 | /*.pfnReadAt = */ rtDbgModDeferredImg_ReadAt,
|
---|
662 | /*.pfnGetFormat = */ rtDbgModDeferredImg_GetFormat,
|
---|
663 | /*.pfnGetArch = */ rtDbgModDeferredImg_GetArch,
|
---|
664 | /*.pfnQueryProp = */ rtDbgModDeferredImg_QueryProp,
|
---|
665 | /*.pfnUnwindFrame = */ rtDbgModDeferredImg_UnwindFrame,
|
---|
666 |
|
---|
667 | /*.u32EndMagic = */ RTDBGMODVTIMG_MAGIC
|
---|
668 | };
|
---|
669 |
|
---|
670 |
|
---|
671 | /**
|
---|
672 | * Creates a deferred loading stub for both image and debug info.
|
---|
673 | *
|
---|
674 | * @returns IPRT status code.
|
---|
675 | * @param pDbgMod The debug module.
|
---|
676 | * @param pfnDeferred The callback that will try load the image and
|
---|
677 | * debug info.
|
---|
678 | * @param cbImage The size of the image.
|
---|
679 | * @param hDbgCfg The debug config handle. Can be NIL. A
|
---|
680 | * reference will be retained.
|
---|
681 | * @param cbDeferred The size of the deferred instance data, 0 if the
|
---|
682 | * default structure is good enough.
|
---|
683 | * @param fFlags RTDBGMOD_F_XXX.
|
---|
684 | * @param ppDeferred Where to return the instance data. Can be NULL.
|
---|
685 | */
|
---|
686 | DECLHIDDEN(int) rtDbgModDeferredCreate(PRTDBGMODINT pDbgMod, PFNRTDBGMODDEFERRED pfnDeferred, RTUINTPTR cbImage,
|
---|
687 | RTDBGCFG hDbgCfg, size_t cbDeferred, uint32_t fFlags, PRTDBGMODDEFERRED *ppDeferred)
|
---|
688 | {
|
---|
689 | AssertReturn(!pDbgMod->pDbgVt, VERR_DBG_MOD_IPE);
|
---|
690 |
|
---|
691 | if (cbDeferred < sizeof(RTDBGMODDEFERRED))
|
---|
692 | cbDeferred = sizeof(RTDBGMODDEFERRED);
|
---|
693 | PRTDBGMODDEFERRED pDeferred = (PRTDBGMODDEFERRED)RTMemAllocZ(cbDeferred);
|
---|
694 | if (!pDeferred)
|
---|
695 | return VERR_NO_MEMORY;
|
---|
696 |
|
---|
697 | pDeferred->u32Magic = RTDBGMODDEFERRED_MAGIC;
|
---|
698 | pDeferred->cRefs = 1 + (pDbgMod->pImgVt == NULL);
|
---|
699 | pDeferred->cbImage = cbImage;
|
---|
700 | if (hDbgCfg != NIL_RTDBGCFG)
|
---|
701 | RTDbgCfgRetain(hDbgCfg);
|
---|
702 | pDeferred->hDbgCfg = hDbgCfg;
|
---|
703 | pDeferred->pfnDeferred = pfnDeferred;
|
---|
704 | pDeferred->fFlags = fFlags;
|
---|
705 |
|
---|
706 | pDbgMod->pDbgVt = &g_rtDbgModVtDbgDeferred;
|
---|
707 | pDbgMod->pvDbgPriv = pDeferred;
|
---|
708 | if (!pDbgMod->pImgVt)
|
---|
709 | {
|
---|
710 | pDbgMod->pImgVt = &g_rtDbgModVtImgDeferred;
|
---|
711 | pDbgMod->pvImgPriv = pDeferred;
|
---|
712 | }
|
---|
713 | pDbgMod->fDeferred = true;
|
---|
714 | pDbgMod->fDeferredFailed = false;
|
---|
715 |
|
---|
716 | if (ppDeferred)
|
---|
717 | *ppDeferred = pDeferred;
|
---|
718 | return VINF_SUCCESS;
|
---|
719 | }
|
---|
720 |
|
---|