1 | /* $Id: dbgmoddeferred.cpp 100931 2023-08-21 23:11:01Z 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) 2013-2023 Oracle and/or its affiliates.
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8 | *
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9 | * This file is part of VirtualBox base platform packages, as
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10 | * available from https://www.virtualbox.org.
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11 | *
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12 | * This program is free software; you can redistribute it and/or
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13 | * modify it under the terms of the GNU General Public License
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14 | * as published by the Free Software Foundation, in version 3 of the
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15 | * License.
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16 | *
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17 | * This program is distributed in the hope that it will be useful, but
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18 | * WITHOUT ANY WARRANTY; without even the implied warranty of
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19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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20 | * General Public License for more details.
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21 | *
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22 | * You should have received a copy of the GNU General Public License
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23 | * along with this program; if not, see <https://www.gnu.org/licenses>.
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24 | *
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25 | * The contents of this file may alternatively be used under the terms
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26 | * of the Common Development and Distribution License Version 1.0
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27 | * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
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28 | * in the VirtualBox distribution, in which case the provisions of the
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29 | * CDDL are applicable instead of those of the GPL.
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30 | *
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31 | * You may elect to license modified versions of this file under the
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32 | * terms and conditions of either the GPL or the CDDL or both.
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33 | *
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34 | * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
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35 | */
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36 |
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37 |
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38 | /*********************************************************************************************************************************
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39 | * Header Files *
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40 | *********************************************************************************************************************************/
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41 | #include <iprt/dbg.h>
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42 | #include "internal/iprt.h"
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43 |
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44 | #include <iprt/asm.h>
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45 | #include <iprt/assert.h>
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46 | #include <iprt/err.h>
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47 | #include <iprt/mem.h>
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48 | #include <iprt/param.h>
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49 | #include <iprt/path.h>
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50 | #include <iprt/string.h>
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51 | #include "internal/dbgmod.h"
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52 | #include "internal/magics.h"
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53 |
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54 |
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55 |
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56 | /**
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57 | * Releases the instance data.
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58 | *
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59 | * @param pThis The instance data.
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60 | */
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61 | static void rtDbgModDeferredReleaseInstanceData(PRTDBGMODDEFERRED pThis)
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62 | {
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63 | AssertPtr(pThis);
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64 | Assert(pThis->u32Magic == RTDBGMODDEFERRED_MAGIC);
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65 | uint32_t cRefs = ASMAtomicDecU32(&pThis->cRefs); Assert(cRefs < 8);
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66 | if (!cRefs)
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67 | {
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68 | RTDbgCfgRelease(pThis->hDbgCfg);
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69 | pThis->hDbgCfg = NIL_RTDBGCFG;
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70 | pThis->u32Magic = RTDBGMODDEFERRED_MAGIC_DEAD;
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71 | RTMemFree(pThis);
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72 | }
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73 | }
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74 |
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75 |
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76 | /**
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77 | * Does the deferred loading of the real data (image and/or debug info).
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78 | *
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79 | * @returns VINF_SUCCESS or VERR_DBG_DEFERRED_LOAD_FAILED.
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80 | * @param pMod The generic module instance data.
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81 | * @param fForcedRetry Whether it's a forced retry by one of the
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82 | * pfnTryOpen methods.
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83 | */
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84 | static int rtDbgModDeferredDoIt(PRTDBGMODINT pMod, bool fForcedRetry)
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85 | {
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86 | RTCritSectEnter(&pMod->CritSect);
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87 |
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88 | int rc;
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89 | if (!pMod->fDeferredFailed || fForcedRetry)
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90 | {
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91 | bool const fDbgVt = pMod->pDbgVt == &g_rtDbgModVtDbgDeferred;
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92 | bool const fImgVt = pMod->pImgVt == &g_rtDbgModVtImgDeferred;
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93 | AssertReturnStmt(fDbgVt || fImgVt, RTCritSectLeave(&pMod->CritSect), VERR_INTERNAL_ERROR_5);
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94 |
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95 | PRTDBGMODDEFERRED pThis = (PRTDBGMODDEFERRED)(fDbgVt ? pMod->pvDbgPriv : pMod->pvImgPriv);
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96 |
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97 | /* Reset the method tables and private data pointes so the deferred loading
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98 | procedure can figure out what to do and won't get confused. */
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99 | if (fDbgVt)
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100 | {
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101 | pMod->pvDbgPriv = NULL;
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102 | pMod->pDbgVt = NULL;
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103 | }
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104 |
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105 | if (fImgVt)
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106 | {
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107 | pMod->pvImgPriv = NULL;
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108 | pMod->pImgVt = NULL;
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109 | }
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110 |
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111 | /* Do the deferred loading. */
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112 | rc = pThis->pfnDeferred(pMod, pThis);
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113 | if (RT_SUCCESS(rc))
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114 | {
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115 | Assert(!fDbgVt || pMod->pDbgVt != NULL);
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116 | Assert(!fImgVt || pMod->pImgVt != NULL);
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117 |
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118 | pMod->fDeferred = false;
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119 | pMod->fDeferredFailed = false;
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120 |
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121 | rtDbgModDeferredReleaseInstanceData(pThis);
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122 | if (fImgVt && fDbgVt)
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123 | rtDbgModDeferredReleaseInstanceData(pThis);
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124 | }
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125 | else
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126 | {
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127 | /* Failed, bail out and restore the deferred setup. */
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128 | pMod->fDeferredFailed = true;
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129 |
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130 | if (fDbgVt)
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131 | {
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132 | Assert(!pMod->pDbgVt);
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133 | pMod->pDbgVt = &g_rtDbgModVtDbgDeferred;
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134 | pMod->pvDbgPriv = pThis;
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135 | }
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136 |
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137 | if (fImgVt)
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138 | {
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139 | Assert(!pMod->pImgVt);
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140 | pMod->pImgVt = &g_rtDbgModVtImgDeferred;
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141 | pMod->pvImgPriv = pThis;
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142 | }
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143 | }
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144 | }
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145 | else
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146 | rc = VERR_DBG_DEFERRED_LOAD_FAILED;
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147 |
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148 | RTCritSectLeave(&pMod->CritSect);
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149 | return rc;
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150 | }
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151 |
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152 |
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153 |
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154 |
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155 | /*
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156 | *
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157 | * D e b u g I n f o M e t h o d s
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158 | * D e b u g I n f o M e t h o d s
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159 | * D e b u g I n f o M e t h o d s
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160 | *
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161 | */
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162 |
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163 | /** @interface_method_impl{RTDBGMODVTDBG,pfnUnwindFrame} */
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164 | static DECLCALLBACK(int)
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165 | rtDbgModDeferredDbg_UnwindFrame(PRTDBGMODINT pMod, RTDBGSEGIDX iSeg, RTUINTPTR off, PRTDBGUNWINDSTATE pState)
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166 | {
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167 | Assert(((PRTDBGMODDEFERRED)pMod->pvDbgPriv)->u32Magic == RTDBGMODDEFERRED_MAGIC);
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168 | int rc = rtDbgModDeferredDoIt(pMod, false /*fForceRetry*/);
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169 | if (RT_SUCCESS(rc))
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170 | rc = pMod->pDbgVt->pfnUnwindFrame(pMod, iSeg, off, pState);
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171 | return rc;
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172 | }
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173 |
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174 |
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175 | /** @interface_method_impl{RTDBGMODVTDBG,pfnLineByAddr} */
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176 | static DECLCALLBACK(int) rtDbgModDeferredDbg_LineByAddr(PRTDBGMODINT pMod, RTDBGSEGIDX iSeg, RTUINTPTR off,
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177 | PRTINTPTR poffDisp, PRTDBGLINE pLineInfo)
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178 | {
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179 | Assert(((PRTDBGMODDEFERRED)pMod->pvDbgPriv)->u32Magic == RTDBGMODDEFERRED_MAGIC);
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180 | int rc = rtDbgModDeferredDoIt(pMod, false /*fForceRetry*/);
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181 | if (RT_SUCCESS(rc))
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182 | rc = pMod->pDbgVt->pfnLineByAddr(pMod, iSeg, off, poffDisp, pLineInfo);
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183 | return rc;
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184 | }
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185 |
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186 |
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187 | /** @interface_method_impl{RTDBGMODVTDBG,pfnLineByOrdinal} */
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188 | static DECLCALLBACK(int) rtDbgModDeferredDbg_LineByOrdinal(PRTDBGMODINT pMod, uint32_t iOrdinal, PRTDBGLINE pLineInfo)
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189 | {
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190 | Assert(((PRTDBGMODDEFERRED)pMod->pvDbgPriv)->u32Magic == RTDBGMODDEFERRED_MAGIC);
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191 | int rc = rtDbgModDeferredDoIt(pMod, false /*fForceRetry*/);
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192 | if (RT_SUCCESS(rc))
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193 | rc = pMod->pDbgVt->pfnLineByOrdinal(pMod, iOrdinal, pLineInfo);
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194 | return rc;
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195 | }
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196 |
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197 |
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198 | /** @interface_method_impl{RTDBGMODVTDBG,pfnLineCount} */
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199 | static DECLCALLBACK(uint32_t) rtDbgModDeferredDbg_LineCount(PRTDBGMODINT pMod)
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200 | {
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201 | Assert(((PRTDBGMODDEFERRED)pMod->pvDbgPriv)->u32Magic == RTDBGMODDEFERRED_MAGIC);
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202 | int rc = rtDbgModDeferredDoIt(pMod, false /*fForceRetry*/);
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203 | if (RT_SUCCESS(rc))
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204 | return pMod->pDbgVt->pfnLineCount(pMod);
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205 | return 0;
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206 | }
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207 |
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208 |
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209 | /** @interface_method_impl{RTDBGMODVTDBG,pfnLineAdd} */
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210 | static DECLCALLBACK(int) rtDbgModDeferredDbg_LineAdd(PRTDBGMODINT pMod, const char *pszFile, size_t cchFile, uint32_t uLineNo,
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211 | uint32_t iSeg, RTUINTPTR off, uint32_t *piOrdinal)
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212 | {
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213 | Assert(((PRTDBGMODDEFERRED)pMod->pvDbgPriv)->u32Magic == RTDBGMODDEFERRED_MAGIC);
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214 | int rc = rtDbgModDeferredDoIt(pMod, false /*fForceRetry*/);
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215 | if (RT_SUCCESS(rc))
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216 | rc = pMod->pDbgVt->pfnLineAdd(pMod, pszFile, cchFile, uLineNo, iSeg, off, piOrdinal);
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217 | return rc;
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218 | }
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219 |
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220 |
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221 | /**
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222 | * Fill in symbol info for the fake start symbol.
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223 | *
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224 | * @returns VINF_SUCCESS
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225 | * @param pThis The deferred load data.
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226 | * @param pSymInfo The output structure.
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227 | */
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228 | static int rtDbgModDeferredDbgSymInfo_Start(PRTDBGMODDEFERRED pThis, PRTDBGSYMBOL pSymInfo)
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229 | {
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230 | pSymInfo->Value = 0;
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231 | pSymInfo->cb = pThis->cbImage;
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232 | pSymInfo->offSeg = 0;
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233 | pSymInfo->iSeg = 0;
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234 | pSymInfo->fFlags = 0;
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235 | pSymInfo->iOrdinal = 0;
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236 | strcpy(pSymInfo->szName, "DeferredStart");
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237 | return VINF_SUCCESS;
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238 | }
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239 |
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240 |
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241 | /**
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242 | * Fill in symbol info for the fake last symbol.
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243 | *
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244 | * @returns VINF_SUCCESS
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245 | * @param pThis The deferred load data.
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246 | * @param pSymInfo The output structure.
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247 | */
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248 | static int rtDbgModDeferredDbgSymInfo_Last(PRTDBGMODDEFERRED pThis, PRTDBGSYMBOL pSymInfo)
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249 | {
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250 | pSymInfo->Value = pThis->cbImage - 1;
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251 | pSymInfo->cb = 0;
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252 | pSymInfo->offSeg = pThis->cbImage - 1;
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253 | pSymInfo->iSeg = 0;
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254 | pSymInfo->fFlags = 0;
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255 | pSymInfo->iOrdinal = 1;
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256 | strcpy(pSymInfo->szName, "DeferredLast");
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257 | return VINF_SUCCESS;
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258 | }
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259 |
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260 |
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261 | /** @interface_method_impl{RTDBGMODVTDBG,pfnSymbolByAddr} */
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262 | static DECLCALLBACK(int) rtDbgModDeferredDbg_SymbolByAddr(PRTDBGMODINT pMod, RTDBGSEGIDX iSeg, RTUINTPTR off, uint32_t fFlags,
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263 | PRTINTPTR poffDisp, PRTDBGSYMBOL pSymInfo)
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264 | {
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265 | Assert(((PRTDBGMODDEFERRED)pMod->pvDbgPriv)->u32Magic == RTDBGMODDEFERRED_MAGIC);
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266 | if ( (fFlags & RTDBGSYMADDR_FLAGS_SKIP_ABS_IN_DEFERRED)
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267 | && iSeg == RTDBGSEGIDX_ABS)
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268 | return VERR_SYMBOL_NOT_FOUND;
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269 |
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270 | int rc = rtDbgModDeferredDoIt(pMod, false /*fForceRetry*/);
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271 | if (RT_SUCCESS(rc))
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272 | rc = pMod->pDbgVt->pfnSymbolByAddr(pMod, iSeg, off, fFlags, poffDisp, pSymInfo);
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273 | else
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274 | {
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275 | PRTDBGMODDEFERRED pThis = (PRTDBGMODDEFERRED)pMod->pvDbgPriv;
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276 | if (off == 0)
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277 | rc = rtDbgModDeferredDbgSymInfo_Start(pThis, pSymInfo);
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278 | else if (off >= pThis->cbImage - 1 || (fFlags & RTDBGSYMADDR_FLAGS_GREATER_OR_EQUAL))
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279 | rc = rtDbgModDeferredDbgSymInfo_Last(pThis, pSymInfo);
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280 | else
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281 | rc = rtDbgModDeferredDbgSymInfo_Start(pThis, pSymInfo);
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282 | if (poffDisp)
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283 | *poffDisp = off - pSymInfo->offSeg;
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284 | }
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285 | return rc;
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286 | }
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287 |
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288 |
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289 | /** @interface_method_impl{RTDBGMODVTDBG,pfnSymbolByName} */
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290 | static DECLCALLBACK(int) rtDbgModDeferredDbg_SymbolByName(PRTDBGMODINT pMod, const char *pszSymbol, size_t cchSymbol,
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291 | PRTDBGSYMBOL pSymInfo)
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292 | {
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293 | Assert(((PRTDBGMODDEFERRED)pMod->pvDbgPriv)->u32Magic == RTDBGMODDEFERRED_MAGIC);
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294 | int rc = rtDbgModDeferredDoIt(pMod, false /*fForceRetry*/);
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295 | if (RT_SUCCESS(rc))
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296 | rc = pMod->pDbgVt->pfnSymbolByName(pMod, pszSymbol, cchSymbol, pSymInfo);
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297 | else
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298 | {
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299 | PRTDBGMODDEFERRED pThis = (PRTDBGMODDEFERRED)pMod->pvDbgPriv;
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300 | if ( cchSymbol == sizeof("DeferredStart") - 1
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301 | && !memcmp(pszSymbol, RT_STR_TUPLE("DeferredStart")))
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302 | rc = rtDbgModDeferredDbgSymInfo_Start(pThis, pSymInfo);
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303 | else if ( cchSymbol == sizeof("DeferredLast") - 1
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304 | && !memcmp(pszSymbol, RT_STR_TUPLE("DeferredLast")))
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305 | rc = rtDbgModDeferredDbgSymInfo_Last(pThis, pSymInfo);
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306 | else
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307 | rc = VERR_SYMBOL_NOT_FOUND;
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308 | }
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309 | return rc;
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310 | }
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311 |
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312 |
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313 | /** @interface_method_impl{RTDBGMODVTDBG,pfnSymbolByOrdinal} */
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314 | static DECLCALLBACK(int) rtDbgModDeferredDbg_SymbolByOrdinal(PRTDBGMODINT pMod, uint32_t iOrdinal, PRTDBGSYMBOL pSymInfo)
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315 | {
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316 | Assert(((PRTDBGMODDEFERRED)pMod->pvDbgPriv)->u32Magic == RTDBGMODDEFERRED_MAGIC);
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317 | int rc = rtDbgModDeferredDoIt(pMod, false /*fForceRetry*/);
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318 | if (RT_SUCCESS(rc))
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319 | rc = pMod->pDbgVt->pfnSymbolByOrdinal(pMod, iOrdinal, pSymInfo);
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320 | else
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321 | {
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322 | PRTDBGMODDEFERRED pThis = (PRTDBGMODDEFERRED)pMod->pvDbgPriv;
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323 | if (iOrdinal == 0)
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324 | rc = rtDbgModDeferredDbgSymInfo_Start(pThis, pSymInfo);
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325 | else if (iOrdinal == 1)
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326 | rc = rtDbgModDeferredDbgSymInfo_Last(pThis, pSymInfo);
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327 | else
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328 | rc = VERR_SYMBOL_NOT_FOUND;
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329 | }
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330 | return rc;
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331 | }
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332 |
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333 |
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334 | /** @interface_method_impl{RTDBGMODVTDBG,pfnSymbolCount} */
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335 | static DECLCALLBACK(uint32_t) rtDbgModDeferredDbg_SymbolCount(PRTDBGMODINT pMod)
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336 | {
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337 | Assert(((PRTDBGMODDEFERRED)pMod->pvDbgPriv)->u32Magic == RTDBGMODDEFERRED_MAGIC);
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338 | int rc = rtDbgModDeferredDoIt(pMod, false /*fForceRetry*/);
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339 | if (RT_SUCCESS(rc))
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340 | return pMod->pDbgVt->pfnSymbolCount(pMod);
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341 | return 2;
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342 | }
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343 |
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344 |
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345 | /** @interface_method_impl{RTDBGMODVTDBG,pfnSymbolAdd} */
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346 | static DECLCALLBACK(int) rtDbgModDeferredDbg_SymbolAdd(PRTDBGMODINT pMod, const char *pszSymbol, size_t cchSymbol,
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347 | RTDBGSEGIDX iSeg, RTUINTPTR off, RTUINTPTR cb, uint32_t fFlags,
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348 | uint32_t *piOrdinal)
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349 | {
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350 | Assert(((PRTDBGMODDEFERRED)pMod->pvDbgPriv)->u32Magic == RTDBGMODDEFERRED_MAGIC);
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351 | int rc = rtDbgModDeferredDoIt(pMod, false /*fForceRetry*/);
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352 | if (RT_SUCCESS(rc))
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353 | rc = pMod->pDbgVt->pfnSymbolAdd(pMod, pszSymbol, cchSymbol, iSeg, off, cb, fFlags, piOrdinal);
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354 | return rc;
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355 | }
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356 |
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357 |
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358 | /** @interface_method_impl{RTDBGMODVTDBG,pfnSegmentByIndex} */
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359 | static DECLCALLBACK(int) rtDbgModDeferredDbg_SegmentByIndex(PRTDBGMODINT pMod, RTDBGSEGIDX iSeg, PRTDBGSEGMENT pSegInfo)
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360 | {
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361 | Assert(((PRTDBGMODDEFERRED)pMod->pvDbgPriv)->u32Magic == RTDBGMODDEFERRED_MAGIC);
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362 | int rc = rtDbgModDeferredDoIt(pMod, false /*fForceRetry*/);
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363 | if (RT_SUCCESS(rc))
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364 | rc = pMod->pDbgVt->pfnSegmentByIndex(pMod, iSeg, pSegInfo);
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365 | else if (iSeg == 0)
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366 | {
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367 | PRTDBGMODDEFERRED pThis = (PRTDBGMODDEFERRED)pMod->pvDbgPriv;
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368 | pSegInfo->Address = 0;
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369 | pSegInfo->uRva = 0;
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370 | pSegInfo->cb = pThis->cbImage;
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371 | pSegInfo->fFlags = 0;
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372 | pSegInfo->iSeg = 0;
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373 | memcpy(pSegInfo->szName, RT_STR_TUPLE("LATER"));
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374 | rc = VINF_SUCCESS;
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375 | }
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376 | else
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377 | rc = VERR_DBG_INVALID_SEGMENT_INDEX;
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378 | return rc;
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379 | }
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380 |
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381 |
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382 | /** @interface_method_impl{RTDBGMODVTDBG,pfnSegmentCount} */
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383 | static DECLCALLBACK(RTDBGSEGIDX) rtDbgModDeferredDbg_SegmentCount(PRTDBGMODINT pMod)
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384 | {
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385 | Assert(((PRTDBGMODDEFERRED)pMod->pvDbgPriv)->u32Magic == RTDBGMODDEFERRED_MAGIC);
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386 | int rc = rtDbgModDeferredDoIt(pMod, false /*fForceRetry*/);
|
---|
387 | if (RT_SUCCESS(rc))
|
---|
388 | return pMod->pDbgVt->pfnSegmentCount(pMod);
|
---|
389 | return 1;
|
---|
390 | }
|
---|
391 |
|
---|
392 |
|
---|
393 | /** @interface_method_impl{RTDBGMODVTDBG,pfnSegmentAdd} */
|
---|
394 | static DECLCALLBACK(int) rtDbgModDeferredDbg_SegmentAdd(PRTDBGMODINT pMod, RTUINTPTR uRva, RTUINTPTR cb, const char *pszName,
|
---|
395 | size_t cchName, uint32_t fFlags, PRTDBGSEGIDX piSeg)
|
---|
396 | {
|
---|
397 | Assert(((PRTDBGMODDEFERRED)pMod->pvDbgPriv)->u32Magic == RTDBGMODDEFERRED_MAGIC);
|
---|
398 | int rc = rtDbgModDeferredDoIt(pMod, false /*fForceRetry*/);
|
---|
399 | if (RT_SUCCESS(rc))
|
---|
400 | rc = pMod->pDbgVt->pfnSegmentAdd(pMod, uRva, cb, pszName, cchName, fFlags, piSeg);
|
---|
401 | return rc;
|
---|
402 | }
|
---|
403 |
|
---|
404 |
|
---|
405 | /** @interface_method_impl{RTDBGMODVTDBG,pfnImageSize} */
|
---|
406 | static DECLCALLBACK(RTUINTPTR) rtDbgModDeferredDbg_ImageSize(PRTDBGMODINT pMod)
|
---|
407 | {
|
---|
408 | PRTDBGMODDEFERRED pThis = (PRTDBGMODDEFERRED)pMod->pvDbgPriv;
|
---|
409 | Assert(pThis->u32Magic == RTDBGMODDEFERRED_MAGIC);
|
---|
410 | return pThis->cbImage;
|
---|
411 | }
|
---|
412 |
|
---|
413 |
|
---|
414 | /** @interface_method_impl{RTDBGMODVTDBG,pfnRvaToSegOff} */
|
---|
415 | static DECLCALLBACK(RTDBGSEGIDX) rtDbgModDeferredDbg_RvaToSegOff(PRTDBGMODINT pMod, RTUINTPTR uRva, PRTUINTPTR poffSeg)
|
---|
416 | {
|
---|
417 | Assert(((PRTDBGMODDEFERRED)pMod->pvDbgPriv)->u32Magic == RTDBGMODDEFERRED_MAGIC);
|
---|
418 | int rc = rtDbgModDeferredDoIt(pMod, false /*fForceRetry*/);
|
---|
419 | if (RT_SUCCESS(rc))
|
---|
420 | return pMod->pDbgVt->pfnRvaToSegOff(pMod, uRva, poffSeg);
|
---|
421 | return 0;
|
---|
422 | }
|
---|
423 |
|
---|
424 |
|
---|
425 | /** @interface_method_impl{RTDBGMODVTDBG,pfnClose} */
|
---|
426 | static DECLCALLBACK(int) rtDbgModDeferredDbg_Close(PRTDBGMODINT pMod)
|
---|
427 | {
|
---|
428 | rtDbgModDeferredReleaseInstanceData((PRTDBGMODDEFERRED)pMod->pvDbgPriv);
|
---|
429 | return VINF_SUCCESS;
|
---|
430 | }
|
---|
431 |
|
---|
432 |
|
---|
433 | /** @interface_method_impl{RTDBGMODVTDBG,pfnTryOpen} */
|
---|
434 | static DECLCALLBACK(int) rtDbgModDeferredDbg_TryOpen(PRTDBGMODINT pMod, RTLDRARCH enmArch, RTDBGCFG hDbgCfg)
|
---|
435 | {
|
---|
436 | NOREF(enmArch); RT_NOREF_PV(hDbgCfg);
|
---|
437 | return rtDbgModDeferredDoIt(pMod, true /*fForceRetry*/);
|
---|
438 | }
|
---|
439 |
|
---|
440 |
|
---|
441 |
|
---|
442 | /** Virtual function table for the deferred debug info reader. */
|
---|
443 | DECL_HIDDEN_CONST(RTDBGMODVTDBG) const g_rtDbgModVtDbgDeferred =
|
---|
444 | {
|
---|
445 | /*.u32Magic = */ RTDBGMODVTDBG_MAGIC,
|
---|
446 | /*.fSupports = */ RT_DBGTYPE_MAP,
|
---|
447 | /*.pszName = */ "deferred",
|
---|
448 | /*.pfnTryOpen = */ rtDbgModDeferredDbg_TryOpen,
|
---|
449 | /*.pfnClose = */ rtDbgModDeferredDbg_Close,
|
---|
450 |
|
---|
451 | /*.pfnRvaToSegOff = */ rtDbgModDeferredDbg_RvaToSegOff,
|
---|
452 | /*.pfnImageSize = */ rtDbgModDeferredDbg_ImageSize,
|
---|
453 |
|
---|
454 | /*.pfnSegmentAdd = */ rtDbgModDeferredDbg_SegmentAdd,
|
---|
455 | /*.pfnSegmentCount = */ rtDbgModDeferredDbg_SegmentCount,
|
---|
456 | /*.pfnSegmentByIndex = */ rtDbgModDeferredDbg_SegmentByIndex,
|
---|
457 |
|
---|
458 | /*.pfnSymbolAdd = */ rtDbgModDeferredDbg_SymbolAdd,
|
---|
459 | /*.pfnSymbolCount = */ rtDbgModDeferredDbg_SymbolCount,
|
---|
460 | /*.pfnSymbolByOrdinal = */ rtDbgModDeferredDbg_SymbolByOrdinal,
|
---|
461 | /*.pfnSymbolByName = */ rtDbgModDeferredDbg_SymbolByName,
|
---|
462 | /*.pfnSymbolByAddr = */ rtDbgModDeferredDbg_SymbolByAddr,
|
---|
463 |
|
---|
464 | /*.pfnLineAdd = */ rtDbgModDeferredDbg_LineAdd,
|
---|
465 | /*.pfnLineCount = */ rtDbgModDeferredDbg_LineCount,
|
---|
466 | /*.pfnLineByOrdinal = */ rtDbgModDeferredDbg_LineByOrdinal,
|
---|
467 | /*.pfnLineByAddr = */ rtDbgModDeferredDbg_LineByAddr,
|
---|
468 |
|
---|
469 | /*.pfnUnwindFrame = */ rtDbgModDeferredDbg_UnwindFrame,
|
---|
470 |
|
---|
471 | /*.u32EndMagic = */ RTDBGMODVTDBG_MAGIC
|
---|
472 | };
|
---|
473 |
|
---|
474 |
|
---|
475 |
|
---|
476 |
|
---|
477 | /*
|
---|
478 | *
|
---|
479 | * I m a g e M e t h o d s
|
---|
480 | * I m a g e M e t h o d s
|
---|
481 | * I m a g e M e t h o d s
|
---|
482 | *
|
---|
483 | */
|
---|
484 |
|
---|
485 | /** @interface_method_impl{RTDBGMODVTIMG,pfnUnwindFrame} */
|
---|
486 | static DECLCALLBACK(int)
|
---|
487 | rtDbgModDeferredImg_UnwindFrame(PRTDBGMODINT pMod, RTDBGSEGIDX iSeg, RTUINTPTR off, PRTDBGUNWINDSTATE pState)
|
---|
488 | {
|
---|
489 | Assert(((PRTDBGMODDEFERRED)pMod->pvImgPriv)->u32Magic == RTDBGMODDEFERRED_MAGIC);
|
---|
490 | int rc = rtDbgModDeferredDoIt(pMod, false /*fForceRetry*/);
|
---|
491 | if (RT_SUCCESS(rc))
|
---|
492 | rc = pMod->pImgVt->pfnUnwindFrame(pMod, iSeg, off, pState);
|
---|
493 | return rc;
|
---|
494 | }
|
---|
495 |
|
---|
496 |
|
---|
497 | /** @interface_method_impl{RTDBGMODVTIMG,pfnQueryProp} */
|
---|
498 | static DECLCALLBACK(int)
|
---|
499 | rtDbgModDeferredImg_QueryProp(PRTDBGMODINT pMod, RTLDRPROP enmProp, void *pvBuf, size_t cbBuf, size_t *pcbRet)
|
---|
500 | {
|
---|
501 | Assert(((PRTDBGMODDEFERRED)pMod->pvImgPriv)->u32Magic == RTDBGMODDEFERRED_MAGIC);
|
---|
502 | int rc = rtDbgModDeferredDoIt(pMod, false /*fForceRetry*/);
|
---|
503 | if (RT_SUCCESS(rc))
|
---|
504 | rc = pMod->pImgVt->pfnQueryProp(pMod, enmProp, pvBuf, cbBuf, pcbRet);
|
---|
505 | return rc;
|
---|
506 | }
|
---|
507 |
|
---|
508 |
|
---|
509 | /** @interface_method_impl{RTDBGMODVTIMG,pfnGetArch} */
|
---|
510 | static DECLCALLBACK(RTLDRARCH) rtDbgModDeferredImg_GetArch(PRTDBGMODINT pMod)
|
---|
511 | {
|
---|
512 | Assert(((PRTDBGMODDEFERRED)pMod->pvImgPriv)->u32Magic == RTDBGMODDEFERRED_MAGIC);
|
---|
513 |
|
---|
514 | RTLDRARCH enmArch;
|
---|
515 | int rc = rtDbgModDeferredDoIt(pMod, false /*fForceRetry*/);
|
---|
516 | if (RT_SUCCESS(rc))
|
---|
517 | enmArch = pMod->pImgVt->pfnGetArch(pMod);
|
---|
518 | else
|
---|
519 | enmArch = RTLDRARCH_WHATEVER;
|
---|
520 | return enmArch;
|
---|
521 | }
|
---|
522 |
|
---|
523 |
|
---|
524 | /** @interface_method_impl{RTDBGMODVTIMG,pfnGetFormat} */
|
---|
525 | static DECLCALLBACK(RTLDRFMT) rtDbgModDeferredImg_GetFormat(PRTDBGMODINT pMod)
|
---|
526 | {
|
---|
527 | Assert(((PRTDBGMODDEFERRED)pMod->pvImgPriv)->u32Magic == RTDBGMODDEFERRED_MAGIC);
|
---|
528 |
|
---|
529 | RTLDRFMT enmFmt;
|
---|
530 | int rc = rtDbgModDeferredDoIt(pMod, false /*fForceRetry*/);
|
---|
531 | if (RT_SUCCESS(rc))
|
---|
532 | enmFmt = pMod->pImgVt->pfnGetFormat(pMod);
|
---|
533 | else
|
---|
534 | enmFmt = RTLDRFMT_INVALID;
|
---|
535 | return enmFmt;
|
---|
536 | }
|
---|
537 |
|
---|
538 |
|
---|
539 | /** @interface_method_impl{RTDBGMODVTIMG,pfnReadAt} */
|
---|
540 | static DECLCALLBACK(int) rtDbgModDeferredImg_ReadAt(PRTDBGMODINT pMod, uint32_t iDbgInfoHint, RTFOFF off, void *pvBuf, size_t cb)
|
---|
541 | {
|
---|
542 | Assert(((PRTDBGMODDEFERRED)pMod->pvImgPriv)->u32Magic == RTDBGMODDEFERRED_MAGIC);
|
---|
543 | int rc = rtDbgModDeferredDoIt(pMod, false /*fForceRetry*/);
|
---|
544 | if (RT_SUCCESS(rc))
|
---|
545 | rc = pMod->pImgVt->pfnReadAt(pMod, iDbgInfoHint, off, pvBuf, cb);
|
---|
546 | return rc;
|
---|
547 | }
|
---|
548 |
|
---|
549 |
|
---|
550 | /** @interface_method_impl{RTDBGMODVTIMG,pfnUnmapPart} */
|
---|
551 | static DECLCALLBACK(int) rtDbgModDeferredImg_UnmapPart(PRTDBGMODINT pMod, size_t cb, void const **ppvMap)
|
---|
552 | {
|
---|
553 | Assert(((PRTDBGMODDEFERRED)pMod->pvImgPriv)->u32Magic == RTDBGMODDEFERRED_MAGIC);
|
---|
554 | int rc = rtDbgModDeferredDoIt(pMod, false /*fForceRetry*/);
|
---|
555 | if (RT_SUCCESS(rc))
|
---|
556 | rc = pMod->pImgVt->pfnUnmapPart(pMod, cb, ppvMap);
|
---|
557 | return rc;
|
---|
558 | }
|
---|
559 |
|
---|
560 |
|
---|
561 | /** @interface_method_impl{RTDBGMODVTIMG,pfnMapPart} */
|
---|
562 | static DECLCALLBACK(int) rtDbgModDeferredImg_MapPart(PRTDBGMODINT pMod, uint32_t iDbgInfo, RTFOFF off, size_t cb, void const **ppvMap)
|
---|
563 | {
|
---|
564 | Assert(((PRTDBGMODDEFERRED)pMod->pvImgPriv)->u32Magic == RTDBGMODDEFERRED_MAGIC);
|
---|
565 | int rc = rtDbgModDeferredDoIt(pMod, false /*fForceRetry*/);
|
---|
566 | if (RT_SUCCESS(rc))
|
---|
567 | rc = pMod->pImgVt->pfnMapPart(pMod, iDbgInfo, off, cb, ppvMap);
|
---|
568 | return rc;
|
---|
569 | }
|
---|
570 |
|
---|
571 |
|
---|
572 | /** @interface_method_impl{RTDBGMODVTIMG,pfnImageSize} */
|
---|
573 | static DECLCALLBACK(RTUINTPTR) rtDbgModDeferredImg_ImageSize(PRTDBGMODINT pMod)
|
---|
574 | {
|
---|
575 | PRTDBGMODDEFERRED pThis = (PRTDBGMODDEFERRED)pMod->pvImgPriv;
|
---|
576 | Assert(pThis->u32Magic == RTDBGMODDEFERRED_MAGIC);
|
---|
577 | return pThis->cbImage;
|
---|
578 | }
|
---|
579 |
|
---|
580 |
|
---|
581 | /** @interface_method_impl{RTDBGMODVTIMG,pfnRvaToSegOffset} */
|
---|
582 | static DECLCALLBACK(int) rtDbgModDeferredImg_RvaToSegOffset(PRTDBGMODINT pMod, RTLDRADDR Rva,
|
---|
583 | PRTDBGSEGIDX piSeg, PRTLDRADDR poffSeg)
|
---|
584 | {
|
---|
585 | Assert(((PRTDBGMODDEFERRED)pMod->pvImgPriv)->u32Magic == RTDBGMODDEFERRED_MAGIC);
|
---|
586 | int rc = rtDbgModDeferredDoIt(pMod, false /*fForceRetry*/);
|
---|
587 | if (RT_SUCCESS(rc))
|
---|
588 | rc = pMod->pImgVt->pfnRvaToSegOffset(pMod, Rva, piSeg, poffSeg);
|
---|
589 | return rc;
|
---|
590 | }
|
---|
591 |
|
---|
592 |
|
---|
593 | /** @interface_method_impl{RTDBGMODVTIMG,pfnLinkAddressToSegOffset} */
|
---|
594 | static DECLCALLBACK(int) rtDbgModDeferredImg_LinkAddressToSegOffset(PRTDBGMODINT pMod, RTLDRADDR LinkAddress,
|
---|
595 | PRTDBGSEGIDX piSeg, PRTLDRADDR poffSeg)
|
---|
596 | {
|
---|
597 | Assert(((PRTDBGMODDEFERRED)pMod->pvImgPriv)->u32Magic == RTDBGMODDEFERRED_MAGIC);
|
---|
598 | int rc = rtDbgModDeferredDoIt(pMod, false /*fForceRetry*/);
|
---|
599 | if (RT_SUCCESS(rc))
|
---|
600 | rc = pMod->pImgVt->pfnLinkAddressToSegOffset(pMod, LinkAddress, piSeg, poffSeg);
|
---|
601 | return rc;
|
---|
602 | }
|
---|
603 |
|
---|
604 |
|
---|
605 | /** @interface_method_impl{RTDBGMODVTIMG,pfnEnumSymbols} */
|
---|
606 | static DECLCALLBACK(int) rtDbgModDeferredImg_EnumSymbols(PRTDBGMODINT pMod, uint32_t fFlags, RTLDRADDR BaseAddress,
|
---|
607 | PFNRTLDRENUMSYMS pfnCallback, void *pvUser)
|
---|
608 | {
|
---|
609 | Assert(((PRTDBGMODDEFERRED)pMod->pvImgPriv)->u32Magic == RTDBGMODDEFERRED_MAGIC);
|
---|
610 | int rc = rtDbgModDeferredDoIt(pMod, false /*fForceRetry*/);
|
---|
611 | if (RT_SUCCESS(rc))
|
---|
612 | rc = pMod->pImgVt->pfnEnumSymbols(pMod, fFlags, BaseAddress, pfnCallback, pvUser);
|
---|
613 | return rc;
|
---|
614 | }
|
---|
615 |
|
---|
616 |
|
---|
617 | /** @interface_method_impl{RTDBGMODVTIMG,pfnEnumSegments} */
|
---|
618 | static DECLCALLBACK(int) rtDbgModDeferredImg_EnumSegments(PRTDBGMODINT pMod, PFNRTLDRENUMSEGS pfnCallback, void *pvUser)
|
---|
619 | {
|
---|
620 | Assert(((PRTDBGMODDEFERRED)pMod->pvImgPriv)->u32Magic == RTDBGMODDEFERRED_MAGIC);
|
---|
621 | int rc = rtDbgModDeferredDoIt(pMod, false /*fForceRetry*/);
|
---|
622 | if (RT_SUCCESS(rc))
|
---|
623 | rc = pMod->pImgVt->pfnEnumSegments(pMod, pfnCallback, pvUser);
|
---|
624 | return rc;
|
---|
625 | }
|
---|
626 |
|
---|
627 |
|
---|
628 | /** @interface_method_impl{RTDBGMODVTIMG,pfnEnumDbgInfo} */
|
---|
629 | static DECLCALLBACK(int) rtDbgModDeferredImg_EnumDbgInfo(PRTDBGMODINT pMod, PFNRTLDRENUMDBG pfnCallback, void *pvUser)
|
---|
630 | {
|
---|
631 | Assert(((PRTDBGMODDEFERRED)pMod->pvImgPriv)->u32Magic == RTDBGMODDEFERRED_MAGIC);
|
---|
632 | int rc = rtDbgModDeferredDoIt(pMod, false /*fForceRetry*/);
|
---|
633 | if (RT_SUCCESS(rc))
|
---|
634 | rc = pMod->pImgVt->pfnEnumDbgInfo(pMod, pfnCallback, pvUser);
|
---|
635 | return rc;
|
---|
636 | }
|
---|
637 |
|
---|
638 |
|
---|
639 | /** @interface_method_impl{RTDBGMODVTIMG,pfnClose} */
|
---|
640 | static DECLCALLBACK(int) rtDbgModDeferredImg_Close(PRTDBGMODINT pMod)
|
---|
641 | {
|
---|
642 | rtDbgModDeferredReleaseInstanceData((PRTDBGMODDEFERRED)pMod->pvImgPriv);
|
---|
643 | return VINF_SUCCESS;
|
---|
644 | }
|
---|
645 |
|
---|
646 |
|
---|
647 | /** @interface_method_impl{RTDBGMODVTIMG,pfnTryOpen} */
|
---|
648 | static DECLCALLBACK(int) rtDbgModDeferredImg_TryOpen(PRTDBGMODINT pMod, RTLDRARCH enmArch, uint32_t fLdrFlags)
|
---|
649 | {
|
---|
650 | RT_NOREF(enmArch, fLdrFlags);
|
---|
651 | return rtDbgModDeferredDoIt(pMod, true /*fForceRetry*/);
|
---|
652 | }
|
---|
653 |
|
---|
654 |
|
---|
655 | /** Virtual function table for the RTLdr based image reader. */
|
---|
656 | DECL_HIDDEN_CONST(RTDBGMODVTIMG) const g_rtDbgModVtImgDeferred =
|
---|
657 | {
|
---|
658 | /*.u32Magic = */ RTDBGMODVTIMG_MAGIC,
|
---|
659 | /*.fReserved = */ 0,
|
---|
660 | /*.pszName = */ "deferred",
|
---|
661 | /*.pfnTryOpen = */ rtDbgModDeferredImg_TryOpen,
|
---|
662 | /*.pfnClose = */ rtDbgModDeferredImg_Close,
|
---|
663 | /*.pfnEnumDbgInfo = */ rtDbgModDeferredImg_EnumDbgInfo,
|
---|
664 | /*.pfnEnumSegments = */ rtDbgModDeferredImg_EnumSegments,
|
---|
665 | /*.pfnEnumSymbols = */ rtDbgModDeferredImg_EnumSymbols,
|
---|
666 | /*.pfnGetLoadedSize = */ rtDbgModDeferredImg_ImageSize,
|
---|
667 | /*.pfnLinkAddressToSegOffset = */ rtDbgModDeferredImg_LinkAddressToSegOffset,
|
---|
668 | /*.pfnRvaToSegOffset = */ rtDbgModDeferredImg_RvaToSegOffset,
|
---|
669 | /*.pfnMapPart = */ rtDbgModDeferredImg_MapPart,
|
---|
670 | /*.pfnUnmapPart = */ rtDbgModDeferredImg_UnmapPart,
|
---|
671 | /*.pfnReadAt = */ rtDbgModDeferredImg_ReadAt,
|
---|
672 | /*.pfnGetFormat = */ rtDbgModDeferredImg_GetFormat,
|
---|
673 | /*.pfnGetArch = */ rtDbgModDeferredImg_GetArch,
|
---|
674 | /*.pfnQueryProp = */ rtDbgModDeferredImg_QueryProp,
|
---|
675 | /*.pfnUnwindFrame = */ rtDbgModDeferredImg_UnwindFrame,
|
---|
676 |
|
---|
677 | /*.u32EndMagic = */ RTDBGMODVTIMG_MAGIC
|
---|
678 | };
|
---|
679 |
|
---|
680 |
|
---|
681 | /**
|
---|
682 | * Creates a deferred loading stub for both image and debug info.
|
---|
683 | *
|
---|
684 | * @returns IPRT status code.
|
---|
685 | * @param pDbgMod The debug module.
|
---|
686 | * @param pfnDeferred The callback that will try load the image and
|
---|
687 | * debug info.
|
---|
688 | * @param cbImage The size of the image.
|
---|
689 | * @param hDbgCfg The debug config handle. Can be NIL. A
|
---|
690 | * reference will be retained.
|
---|
691 | * @param cbDeferred The size of the deferred instance data, 0 if the
|
---|
692 | * default structure is good enough.
|
---|
693 | * @param fFlags RTDBGMOD_F_XXX.
|
---|
694 | * @param ppDeferred Where to return the instance data. Can be NULL.
|
---|
695 | */
|
---|
696 | DECLHIDDEN(int) rtDbgModDeferredCreate(PRTDBGMODINT pDbgMod, PFNRTDBGMODDEFERRED pfnDeferred, RTUINTPTR cbImage,
|
---|
697 | RTDBGCFG hDbgCfg, size_t cbDeferred, uint32_t fFlags, PRTDBGMODDEFERRED *ppDeferred)
|
---|
698 | {
|
---|
699 | AssertReturn(!pDbgMod->pDbgVt, VERR_DBG_MOD_IPE);
|
---|
700 |
|
---|
701 | if (cbDeferred < sizeof(RTDBGMODDEFERRED))
|
---|
702 | cbDeferred = sizeof(RTDBGMODDEFERRED);
|
---|
703 | PRTDBGMODDEFERRED pDeferred = (PRTDBGMODDEFERRED)RTMemAllocZ(cbDeferred);
|
---|
704 | if (!pDeferred)
|
---|
705 | return VERR_NO_MEMORY;
|
---|
706 |
|
---|
707 | pDeferred->u32Magic = RTDBGMODDEFERRED_MAGIC;
|
---|
708 | pDeferred->cRefs = 1 + (pDbgMod->pImgVt == NULL);
|
---|
709 | pDeferred->cbImage = cbImage;
|
---|
710 | if (hDbgCfg != NIL_RTDBGCFG)
|
---|
711 | RTDbgCfgRetain(hDbgCfg);
|
---|
712 | pDeferred->hDbgCfg = hDbgCfg;
|
---|
713 | pDeferred->pfnDeferred = pfnDeferred;
|
---|
714 | pDeferred->fFlags = fFlags;
|
---|
715 |
|
---|
716 | pDbgMod->pDbgVt = &g_rtDbgModVtDbgDeferred;
|
---|
717 | pDbgMod->pvDbgPriv = pDeferred;
|
---|
718 | if (!pDbgMod->pImgVt)
|
---|
719 | {
|
---|
720 | pDbgMod->pImgVt = &g_rtDbgModVtImgDeferred;
|
---|
721 | pDbgMod->pvImgPriv = pDeferred;
|
---|
722 | }
|
---|
723 | pDbgMod->fDeferred = true;
|
---|
724 | pDbgMod->fDeferredFailed = false;
|
---|
725 |
|
---|
726 | if (ppDeferred)
|
---|
727 | *ppDeferred = pDeferred;
|
---|
728 | return VINF_SUCCESS;
|
---|
729 | }
|
---|
730 |
|
---|