/* $Id: dbgmodmapsym.cpp $ */ /** @file * IPRT - Debug Map Reader for MAPSYM files (used by SYMDBG from old MASM). * * MAPSYM is was the tool producing these files from linker map files for * use with SYMDBG (which shipped with MASM 3.0 (possibly earlier)), the OS/2 * kernel debugger, and other tools. The format is very limited and they had * to strip down the os2krnl.map file in later years to keep MAPSYM happy. */ /* * Copyright (C) 2009-2019 Oracle Corporation * * This file is part of VirtualBox Open Source Edition (OSE), as * available from http://www.virtualbox.org. This file is free software; * you can redistribute it and/or modify it under the terms of the GNU * General Public License (GPL) as published by the Free Software * Foundation, in version 2 as it comes in the "COPYING" file of the * VirtualBox OSE distribution. VirtualBox OSE is distributed in the * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind. * * The contents of this file may alternatively be used under the terms * of the Common Development and Distribution License Version 1.0 * (CDDL) only, as it comes in the "COPYING.CDDL" file of the * VirtualBox OSE distribution, in which case the provisions of the * CDDL are applicable instead of those of the GPL. * * You may elect to license modified versions of this file under the * terms and conditions of either the GPL or the CDDL or both. */ /********************************************************************************************************************************* * Header Files * *********************************************************************************************************************************/ #define LOG_GROUP RTLOGGROUP_DBG #include #include "internal/iprt.h" #include #include #include #include #include #include #include #include "internal/dbgmod.h" /********************************************************************************************************************************* * Structures and Typedefs * *********************************************************************************************************************************/ /** @name MAPSYM structures and constants. * @{ */ /** MAPSYM: Header structure. */ typedef struct MAPSYMHDR { uint16_t off16NextMap; /**< 0x00: Offset of the next map divided by 16. */ uint8_t bFlags; /**< 0x02: Who really knows... */ uint8_t bReserved; /**< 0x03: Reserved / unknown. */ uint16_t uSegEntry; /**< 0x04: Some entrypoint/segment thing we don't care about. */ uint16_t cConsts; /**< 0x06: Constants referenced by offConstDef. */ uint16_t offConstDef; /**< 0x08: Offset to head of constant chain. Not div 16? */ uint16_t cSegs; /**< 0x0a: Number of segments in the map. */ uint16_t off16SegDef; /**< 0x0c: Offset of the segment defintions divided by 16. */ uint8_t cchMaxSym; /**< 0x0e: Maximum symbol-name length. */ uint8_t cchModule; /**< 0x0f: Length of the module name. */ char achModule[RT_FLEXIBLE_ARRAY]; /**< 0x10: Module name, length given by cchModule. */ } MAPSYMHDR; /** MAPSYM: Tail structure. */ typedef struct MAPSYMTAIL { uint16_t offNextMap; /**< 0x00: Always zero (it's the tail, see). */ uint8_t bRelease; /**< 0x02: Minor version number. */ uint8_t bVersion; /**< 0x03: Major version number. */ } MAPSYMTAIL; /** MAPSYM: Segment defintion. */ typedef struct MAPSYMSEGDEF { uint16_t off16NextSeg; /**< 0x00: Offset of the next segment divided by 16. */ uint16_t cSymbols; /**< 0x02: Number of symbol offsets . */ uint16_t offSymbolOffsets; /**< 0x04: Offset of the symbol offset table. Each entry is a 16-bit value giving * the offset symbol relative to this structure. */ uint16_t au16Reserved0[4]; /**< 0x06: Reserved / unknown. * First byte/word seems to be 1-based segment number. */ uint8_t bFlags; /**< 0x0e: MAPSYMSEGDEF_F_32BIT or zero. */ uint8_t bReserved1; /**< 0x0f: Reserved / unknown. */ uint16_t offLineDef; /**< 0x10: Offset to the line defintions. */ uint16_t u16Reserved2; /**< 0x12: Reserved / unknown. Often seen holding 0xff00. */ uint8_t cchSegName; /**< 0x14: Segment name length. */ char achSegName[RT_FLEXIBLE_ARRAY]; /**< 0x15: Segment name, length given by cchSegName. */ } MAPSYMSEGDEF; #define MAPSYMSEGDEF_F_32BIT UINT8_C(0x01) /**< Indicates 32-bit segment rather than 16-bit, relevant for symbols. */ #define MAPSYMSEGDEF_F_UNKNOWN UINT8_C(0x02) /**< Set on all segments in os2krnlr.sym from ACP2. */ /** MAPSYM: 16-bit symbol */ typedef struct MAPSYMSYMDEF16 { uint16_t uValue; /**< 0x00: The symbol value (address). */ uint8_t cchName; /**< 0x02: Symbol name length. */ char achName[1]; /**< 0x03: The symbol name, length give by cchName. */ } MAPSYMSYMDEF16; /** MAPSYM: 16-bit symbol */ typedef struct MAPSYMSYMDEF32 { uint32_t uValue; /**< 0x00: The symbol value (address). */ uint8_t cchName; /**< 0x04: Symbol name length. */ char achName[1]; /**< 0x05: The symbol name, length give by cchName. */ } MAPSYMSYMDEF32; /** MAPSYM: Line number defintions. */ typedef struct MAPSYMLINEDEF { uint16_t off16NextLine; /**< 0x00: Offset to the next line defintion divided by 16. */ uint16_t uSegment; /**< 0x02: Guessing this must be segment number. */ uint16_t offLines; /**< 0x04: Offset to the line number array, relative to this structure. */ uint16_t cLines; /**< 0x08: Number of line numbers in the array. */ uint8_t cchSrcFile; /**< 0x0a: Length of source filename. */ char achSrcFile[RT_FLEXIBLE_ARRAY]; /**< 0x0b: Source filename, length given by cchSrcFile. */ } MAPSYMLINEDEF; /** MAPSYM: 16-bit line numbers. */ typedef struct MAPSYMLINENO16 { uint16_t offSeg; uint16_t uLineNo; } MAPSYMLINENO16; /** @} */ /********************************************************************************************************************************* * Defined Constants And Macros * *********************************************************************************************************************************/ /** Maximum number of segments we expect in a MAPSYM file. */ #define RTDBGMODMAPSYM_MAX_SEGMENTS 256 /** @interface_method_impl{RTDBGMODVTDBG,pfnUnwindFrame} */ static DECLCALLBACK(int) rtDbgModMapSym_UnwindFrame(PRTDBGMODINT pMod, RTDBGSEGIDX iSeg, RTUINTPTR off, PRTDBGUNWINDSTATE pState) { RT_NOREF(pMod, iSeg, off, pState); return VERR_DBG_NO_UNWIND_INFO; } /** @interface_method_impl{RTDBGMODVTDBG,pfnLineByAddr} */ static DECLCALLBACK(int) rtDbgModMapSym_LineByAddr(PRTDBGMODINT pMod, RTDBGSEGIDX iSeg, RTUINTPTR off, PRTINTPTR poffDisp, PRTDBGLINE pLineInfo) { RTDBGMOD hCnt = (RTDBGMOD)pMod->pvDbgPriv; return RTDbgModLineByAddr(hCnt, iSeg, off, poffDisp, pLineInfo); } /** @interface_method_impl{RTDBGMODVTDBG,pfnLineByOrdinal} */ static DECLCALLBACK(int) rtDbgModMapSym_LineByOrdinal(PRTDBGMODINT pMod, uint32_t iOrdinal, PRTDBGLINE pLineInfo) { RTDBGMOD hCnt = (RTDBGMOD)pMod->pvDbgPriv; return RTDbgModLineByOrdinal(hCnt, iOrdinal, pLineInfo); } /** @interface_method_impl{RTDBGMODVTDBG,pfnLineCount} */ static DECLCALLBACK(uint32_t) rtDbgModMapSym_LineCount(PRTDBGMODINT pMod) { RTDBGMOD hCnt = (RTDBGMOD)pMod->pvDbgPriv; return RTDbgModLineCount(hCnt); } /** @interface_method_impl{RTDBGMODVTDBG,pfnLineAdd} */ static DECLCALLBACK(int) rtDbgModMapSym_LineAdd(PRTDBGMODINT pMod, const char *pszFile, size_t cchFile, uint32_t uLineNo, uint32_t iSeg, RTUINTPTR off, uint32_t *piOrdinal) { RTDBGMOD hCnt = (RTDBGMOD)pMod->pvDbgPriv; Assert(!pszFile[cchFile]); NOREF(cchFile); return RTDbgModLineAdd(hCnt, pszFile, uLineNo, iSeg, off, piOrdinal); } /** @interface_method_impl{RTDBGMODVTDBG,pfnSymbolByAddr} */ static DECLCALLBACK(int) rtDbgModMapSym_SymbolByAddr(PRTDBGMODINT pMod, RTDBGSEGIDX iSeg, RTUINTPTR off, uint32_t fFlags, PRTINTPTR poffDisp, PRTDBGSYMBOL pSymInfo) { RTDBGMOD hCnt = (RTDBGMOD)pMod->pvDbgPriv; return RTDbgModSymbolByAddr(hCnt, iSeg, off, fFlags, poffDisp, pSymInfo); } /** @interface_method_impl{RTDBGMODVTDBG,pfnSymbolByName} */ static DECLCALLBACK(int) rtDbgModMapSym_SymbolByName(PRTDBGMODINT pMod, const char *pszSymbol, size_t cchSymbol, PRTDBGSYMBOL pSymInfo) { RTDBGMOD hCnt = (RTDBGMOD)pMod->pvDbgPriv; Assert(!pszSymbol[cchSymbol]); NOREF(cchSymbol); return RTDbgModSymbolByName(hCnt, pszSymbol, pSymInfo); } /** @interface_method_impl{RTDBGMODVTDBG,pfnSymbolByOrdinal} */ static DECLCALLBACK(int) rtDbgModMapSym_SymbolByOrdinal(PRTDBGMODINT pMod, uint32_t iOrdinal, PRTDBGSYMBOL pSymInfo) { RTDBGMOD hCnt = (RTDBGMOD)pMod->pvDbgPriv; return RTDbgModSymbolByOrdinal(hCnt, iOrdinal, pSymInfo); } /** @interface_method_impl{RTDBGMODVTDBG,pfnSymbolCount} */ static DECLCALLBACK(uint32_t) rtDbgModMapSym_SymbolCount(PRTDBGMODINT pMod) { RTDBGMOD hCnt = (RTDBGMOD)pMod->pvDbgPriv; return RTDbgModSymbolCount(hCnt); } /** @interface_method_impl{RTDBGMODVTDBG,pfnSymbolAdd} */ static DECLCALLBACK(int) rtDbgModMapSym_SymbolAdd(PRTDBGMODINT pMod, const char *pszSymbol, size_t cchSymbol, RTDBGSEGIDX iSeg, RTUINTPTR off, RTUINTPTR cb, uint32_t fFlags, uint32_t *piOrdinal) { RTDBGMOD hCnt = (RTDBGMOD)pMod->pvDbgPriv; Assert(!pszSymbol[cchSymbol]); NOREF(cchSymbol); return RTDbgModSymbolAdd(hCnt, pszSymbol, iSeg, off, cb, fFlags, piOrdinal); } /** @interface_method_impl{RTDBGMODVTDBG,pfnSegmentByIndex} */ static DECLCALLBACK(int) rtDbgModMapSym_SegmentByIndex(PRTDBGMODINT pMod, RTDBGSEGIDX iSeg, PRTDBGSEGMENT pSegInfo) { RTDBGMOD hCnt = (RTDBGMOD)pMod->pvDbgPriv; return RTDbgModSegmentByIndex(hCnt, iSeg, pSegInfo); } /** @interface_method_impl{RTDBGMODVTDBG,pfnSegmentCount} */ static DECLCALLBACK(RTDBGSEGIDX) rtDbgModMapSym_SegmentCount(PRTDBGMODINT pMod) { RTDBGMOD hCnt = (RTDBGMOD)pMod->pvDbgPriv; return RTDbgModSegmentCount(hCnt); } /** @interface_method_impl{RTDBGMODVTDBG,pfnSegmentAdd} */ static DECLCALLBACK(int) rtDbgModMapSym_SegmentAdd(PRTDBGMODINT pMod, RTUINTPTR uRva, RTUINTPTR cb, const char *pszName, size_t cchName, uint32_t fFlags, PRTDBGSEGIDX piSeg) { RTDBGMOD hCnt = (RTDBGMOD)pMod->pvDbgPriv; Assert(!pszName[cchName]); NOREF(cchName); return RTDbgModSegmentAdd(hCnt, uRva, cb, pszName, fFlags, piSeg); } /** @interface_method_impl{RTDBGMODVTDBG,pfnImageSize} */ static DECLCALLBACK(RTUINTPTR) rtDbgModMapSym_ImageSize(PRTDBGMODINT pMod) { RTDBGMOD hCnt = (RTDBGMOD)pMod->pvDbgPriv; return RTDbgModImageSize(hCnt); } /** @interface_method_impl{RTDBGMODVTDBG,pfnRvaToSegOff} */ static DECLCALLBACK(RTDBGSEGIDX) rtDbgModMapSym_RvaToSegOff(PRTDBGMODINT pMod, RTUINTPTR uRva, PRTUINTPTR poffSeg) { RTDBGMOD hCnt = (RTDBGMOD)pMod->pvDbgPriv; return RTDbgModRvaToSegOff(hCnt, uRva, poffSeg); } /** @interface_method_impl{RTDBGMODVTDBG,pfnClose} */ static DECLCALLBACK(int) rtDbgModMapSym_Close(PRTDBGMODINT pMod) { RTDBGMOD hCnt = (RTDBGMOD)pMod->pvDbgPriv; RTDbgModRelease(hCnt); pMod->pvDbgPriv = NULL; return VINF_SUCCESS; } /** * Validate the module header. * * @returns true if valid, false if not. * @param pHdr The header. * @param cbAvail How much we've actually read. * @param cbFile The file size (relative to module header). */ static bool rtDbgModMapSymIsValidHeader(MAPSYMHDR const *pHdr, size_t cbAvail, uint64_t cbFile) { if (cbAvail <= RT_UOFFSETOF(MAPSYMHDR, achModule)) return false; if (pHdr->cSegs == 0) return false; if (pHdr->cSegs > RTDBGMODMAPSYM_MAX_SEGMENTS) return false; if (pHdr->off16SegDef == 0) return false; if (pHdr->off16SegDef * (uint32_t)16 >= cbFile) return false; if (pHdr->cchModule == 0) return false; if (pHdr->cchModule > 128) /* Note must be smaller than abPadding below in caller */ return false; size_t cchMaxName = cbAvail - RT_UOFFSETOF(MAPSYMHDR, achModule); if (pHdr->cchModule > cchMaxName) return false; for (uint32_t i = 0; i < pHdr->cchModule; i++) { unsigned char const uch = pHdr->achModule[i]; if ( uch < 0x20 || uch >= 0x7f) return false; } return true; } /** * Validate the given segment definition. * * @returns true if valid, false if not. * @param pSegDef The segment definition structure. * @param cbMax Host many bytes are available starting with pSegDef. */ static bool rtDbgModMapSymIsValidSegDef(MAPSYMSEGDEF const *pSegDef, size_t cbMax) { if (RT_UOFFSETOF(MAPSYMSEGDEF, achSegName) > cbMax) return false; if (pSegDef->cSymbols) { if (pSegDef->cSymbols > _32K) { Log(("rtDbgModMapSymIsValidSegDef: Too many symbols: %#x\n", pSegDef->cSymbols)); return false; } if (pSegDef->offSymbolOffsets + (uint32_t)2 * pSegDef->cSymbols > cbMax) { Log(("rtDbgModMapSymIsValidSegDef: Bad symbol offset/count: %#x/%#x\n", pSegDef->offSymbolOffsets, pSegDef->cSymbols)); return false; } } size_t cchMaxName = cbMax - RT_UOFFSETOF(MAPSYMHDR, achModule); if (pSegDef->cchSegName > cchMaxName) { Log(("rtDbgModMapSymIsValidSegDef: Bad segment name length\n")); return false; } for (uint32_t i = 0; i < pSegDef->cchSegName; i++) { unsigned char uch = pSegDef->achSegName[i]; if ( uch < 0x20 || uch >= 0x7f) { Log(("rtDbgModMapSymIsValidSegDef: Bad segment name: %.*Rhxs\n", pSegDef->cchSegName, pSegDef->achSegName)); return false; } } return true; } /** * Fills @a hCnt with segments and symbols from the MAPSYM file. * * @note We only support reading the first module, right now. */ static int rtDbgModMapSymReadIt(RTDBGMOD hCnt, uint8_t const *pbFile, size_t cbFile) { /* * Revalidate the header. */ MAPSYMHDR const *pHdr = (MAPSYMHDR const *)pbFile; if (!rtDbgModMapSymIsValidHeader(pHdr, cbFile, cbFile)) return VERR_DBG_NO_MATCHING_INTERPRETER; Log(("rtDbgModMapSymReadIt: szModule='%.*s' cSegs=%u off16NextMap=%#x\n", pHdr->cchModule, pHdr->achModule, pHdr->cSegs, pHdr->off16NextMap)); /* * Load each segment. */ uint32_t uRva = 0; uint32_t const cSegs = pHdr->cSegs; uint32_t offSegment = pHdr->off16SegDef * (uint32_t)16; for (uint32_t iSeg = 0; iSeg < cSegs; iSeg++) { if (offSegment >= cbFile) return VERR_DBG_NO_MATCHING_INTERPRETER; size_t const cbMax = cbFile - offSegment; MAPSYMSEGDEF const *pSegDef = (MAPSYMSEGDEF const *)&pbFile[offSegment]; if (!rtDbgModMapSymIsValidSegDef(pSegDef, cbMax)) return VERR_DBG_NO_MATCHING_INTERPRETER; Log(("rtDbgModMapSymReadIt: Segment #%u: flags=%#x name='%.*s' symbols=%#x @ %#x next=%#x lines=@%#x (reserved: %#x %#x %#x %#x %#x %#x)\n", iSeg, pSegDef->bFlags, pSegDef->cchSegName, pSegDef->achSegName, pSegDef->cSymbols, pSegDef->offSymbolOffsets, pSegDef->off16NextSeg, pSegDef->offLineDef, pSegDef->au16Reserved0[0], pSegDef->au16Reserved0[1], pSegDef->au16Reserved0[2], pSegDef->au16Reserved0[3], pSegDef->bReserved1, pSegDef->u16Reserved2)); /* * First symbol pass finds the largest symbol and uses that as the segment size. */ uint32_t cbSegmentEst = 0; uint32_t const cSymbols = pSegDef->cSymbols; uint16_t const * const paoffSymbols = (uint16_t const *)&pbFile[offSegment + pSegDef->offSymbolOffsets]; bool const fIs32Bit = RT_BOOL(pSegDef->bFlags & MAPSYMSEGDEF_F_32BIT); uint32_t const cbSymDef = fIs32Bit ? 4 + 1 : 2 + 1; for (uint32_t iSymbol = 0; iSymbol < cSymbols; iSymbol++) { uint32_t off = paoffSymbols[iSymbol] + offSegment; if (off + cbSymDef <= cbFile) { uint32_t uValue = fIs32Bit ? *(uint32_t const *)&pbFile[off] : (uint32_t)*(uint16_t const *)&pbFile[off]; if (uValue > cbSegmentEst) cbSegmentEst = uValue; } else Log(("rtDbgModMapSymReadIt: Bad symbol offset %#x\n", off)); } /* * Add the segment. */ char szName[256]; memcpy(szName, pSegDef->achSegName, pSegDef->cchSegName); szName[pSegDef->cchSegName] = '\0'; if (!pSegDef->cchSegName) RTStrPrintf(szName, sizeof(szName), "seg%02u", iSeg); RTDBGSEGIDX idxDbgSeg = iSeg; int rc = RTDbgModSegmentAdd(hCnt, uRva, cbSegmentEst, szName, 0 /*fFlags*/, &idxDbgSeg); if (RT_FAILURE(rc)) return rc; uRva += cbSegmentEst; /* * The second symbol pass loads the symbol values and names. */ for (uint32_t iSymbol = 0; iSymbol < cSymbols; iSymbol++) { uint32_t off = paoffSymbols[iSymbol] + offSegment; if (off + cbSymDef <= cbFile) { /* Get value: */ uint32_t uValue = RT_MAKE_U16(pbFile[off], pbFile[off + 1]); off += 2; if (fIs32Bit) { uValue |= RT_MAKE_U32_FROM_U8(0, 0, pbFile[off], pbFile[off + 1]); off += 2; } /* Get name: */ uint8_t cchName = pbFile[off++]; if (off + cchName <= cbFile) { memcpy(szName, &pbFile[off], cchName); szName[cchName] = '\0'; RTStrPurgeEncoding(szName); } else cchName = 0; if (cchName == 0) RTStrPrintf(szName, sizeof(szName), "unknown_%u_%u", iSeg, iSymbol); /* Try add it: */ rc = RTDbgModSymbolAdd(hCnt, szName, idxDbgSeg, uValue, 0 /*cb*/, 0 /*fFlags*/, NULL /*piOrdinal*/); if (RT_SUCCESS(rc)) Log7(("rtDbgModMapSymReadIt: %02x:%06x %s\n", idxDbgSeg, uValue, szName)); else if ( rc == VERR_DBG_DUPLICATE_SYMBOL || rc == VERR_DBG_ADDRESS_CONFLICT || rc == VERR_DBG_SYMBOL_NAME_OUT_OF_RANGE) Log(("rtDbgModMapSymReadIt: %02x:%06x %s\n", idxDbgSeg, uValue, szName)); else { Log(("rtDbgModMapSymReadIt: Unexpected RTDbgModSymbolAdd failure: %Rrc - %02x:%06x %s\n", rc, idxDbgSeg, uValue, szName)); return rc; } } } /* Next segment */ offSegment = pSegDef->off16NextSeg * (uint32_t)16; } return VINF_SUCCESS; } /** @interface_method_impl{RTDBGMODVTDBG,pfnTryOpen} */ static DECLCALLBACK(int) rtDbgModMapSym_TryOpen(PRTDBGMODINT pMod, RTLDRARCH enmArch) { NOREF(enmArch); /* * Fend off images. */ if ( !pMod->pszDbgFile || pMod->pImgVt) return VERR_DBG_NO_MATCHING_INTERPRETER; pMod->pvDbgPriv = NULL; /* * Try open the file and check out the first header. */ RTFILE hFile; int rc = RTFileOpen(&hFile, pMod->pszDbgFile, RTFILE_O_READ | RTFILE_O_OPEN | RTFILE_O_DENY_WRITE); if (RT_SUCCESS(rc)) { uint64_t cbFile = 0; rc = RTFileGetSize(hFile, &cbFile); if ( RT_SUCCESS(rc) && cbFile < _2M) { union { MAPSYMHDR Hdr; char abPadding[sizeof(MAPSYMHDR) + 257]; /* rtDbgModMapSymIsValidHeader makes size assumptions. */ } uBuf; size_t cbToRead = (size_t)RT_MIN(cbFile, sizeof(uBuf)); rc = RTFileReadAt(hFile, 0, &uBuf, RT_MIN(cbFile, sizeof(uBuf)), NULL); if (RT_SUCCESS(rc)) { if (rtDbgModMapSymIsValidHeader(&uBuf.Hdr, cbToRead, cbFile)) { uBuf.Hdr.achModule[uBuf.Hdr.cchModule] = '\0'; /* * Read the whole thing into memory, create an * instance/container and load it with symbols. */ void *pvFile = NULL; size_t cbFile2 = 0; rc = RTFileReadAllByHandle(hFile, &pvFile, &cbFile2); if (RT_SUCCESS(rc)) { RTDBGMOD hCnt; rc = RTDbgModCreate(&hCnt, uBuf.Hdr.achModule, 0 /*cbSeg*/, 0 /*fFlags*/); if (RT_SUCCESS(rc)) { rc = rtDbgModMapSymReadIt(hCnt, (uint8_t const *)pvFile, cbFile2); if (RT_SUCCESS(rc)) pMod->pvDbgPriv = hCnt; else RTDbgModRelease(hCnt); } RTFileReadAllFree(pvFile, cbFile2); } } else rc = VERR_DBG_NO_MATCHING_INTERPRETER; } } RTFileClose(hFile); } Log(("rtDbgModMapSym_TryOpen: %s -> %Rrc, %p\n", pMod->pszDbgFile, rc, pMod->pvDbgPriv)); return rc; } /** Virtual function table for the MAPSYM file reader. */ DECL_HIDDEN_CONST(RTDBGMODVTDBG) const g_rtDbgModVtDbgMapSym = { /*.u32Magic = */ RTDBGMODVTDBG_MAGIC, /*.fSupports = */ RT_DBGTYPE_SYM, /*.pszName = */ "mapsym", /*.pfnTryOpen = */ rtDbgModMapSym_TryOpen, /*.pfnClose = */ rtDbgModMapSym_Close, /*.pfnRvaToSegOff = */ rtDbgModMapSym_RvaToSegOff, /*.pfnImageSize = */ rtDbgModMapSym_ImageSize, /*.pfnSegmentAdd = */ rtDbgModMapSym_SegmentAdd, /*.pfnSegmentCount = */ rtDbgModMapSym_SegmentCount, /*.pfnSegmentByIndex = */ rtDbgModMapSym_SegmentByIndex, /*.pfnSymbolAdd = */ rtDbgModMapSym_SymbolAdd, /*.pfnSymbolCount = */ rtDbgModMapSym_SymbolCount, /*.pfnSymbolByOrdinal = */ rtDbgModMapSym_SymbolByOrdinal, /*.pfnSymbolByName = */ rtDbgModMapSym_SymbolByName, /*.pfnSymbolByAddr = */ rtDbgModMapSym_SymbolByAddr, /*.pfnLineAdd = */ rtDbgModMapSym_LineAdd, /*.pfnLineCount = */ rtDbgModMapSym_LineCount, /*.pfnLineByOrdinal = */ rtDbgModMapSym_LineByOrdinal, /*.pfnLineByAddr = */ rtDbgModMapSym_LineByAddr, /*.pfnUnwindFrame = */ rtDbgModMapSym_UnwindFrame, /*.u32EndMagic = */ RTDBGMODVTDBG_MAGIC };