dbgmoddwarf.cpp revision ad66a27959d7085aa31760f63ce082943be60e89
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * IPRT - Debug Info Reader For DWARF.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * Copyright (C) 2011 Oracle Corporation
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * This file is part of VirtualBox Open Source Edition (OSE), as
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * available from http://www.virtualbox.org. This file is free software;
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * you can redistribute it and/or modify it under the terms of the GNU
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * General Public License (GPL) as published by the Free Software
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * Foundation, in version 2 as it comes in the "COPYING" file of the
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
2fa05a4e777b070ba9bf01e3dd46434c99cd06a3vboxsync * The contents of this file may alternatively be used under the terms
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * of the Common Development and Distribution License Version 1.0
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * VirtualBox OSE distribution, in which case the provisions of the
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * CDDL are applicable instead of those of the GPL.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * You may elect to license modified versions of this file under the
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * terms and conditions of either the GPL or the CDDL or both.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync/*******************************************************************************
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync* Header Files *
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync*******************************************************************************/
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync/*******************************************************************************
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync* Defined Constants And Macros *
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync*******************************************************************************/
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync/** @name Standard DWARF Line Number Opcodes
d97357e2036109245c83ba553d0290212e28ea40vboxsync/** @name Extended DWARF Line Number Opcodes
3581dfd579fa647c95528b7f7d24740111a36903vboxsync/*******************************************************************************
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync* Structures and Typedefs *
d97357e2036109245c83ba553d0290212e28ea40vboxsync*******************************************************************************/
3581dfd579fa647c95528b7f7d24740111a36903vboxsync * DWARF sections.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync /** End of valid parts (exclusive). */
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * Abbreviation cache entry.
d97357e2036109245c83ba553d0290212e28ea40vboxsync /** Whether this entry is filled in or not. */
d97357e2036109245c83ba553d0290212e28ea40vboxsync /** Whether there are children or not. */
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync /** The tag. */
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync /** Offset into the abbrev section of the specification pairs. */
3581dfd579fa647c95528b7f7d24740111a36903vboxsync/** Pointer to an abbreviation cache entry. */
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync/** Pointer to a const abbreviation cache entry. */
3331475701a5b12f98b3cfea07d5dca60072530fvboxsynctypedef RTDBGMODDWARFABBREV const *PCRTDBGMODDWARFABBREV;
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * The instance data of the DWARF reader.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync /** The debug container containing doing the real work. */
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync /** Pointer to back to the debug info module (no reference ofc). */
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync /** DWARF debug info sections. */
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync /** The file offset of the part. */
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync /** The size of the part. */
3581dfd579fa647c95528b7f7d24740111a36903vboxsync /** The memory mapping of the part. */
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync void const *pv;
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync /** Set if present. */
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync /** The offset into the abbreviation section of the current cache. */
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync /** The number of cached abbreviations we've allocated space for. */
d97357e2036109245c83ba553d0290212e28ea40vboxsync /** Used for range checking cache lookups. */
3581dfd579fa647c95528b7f7d24740111a36903vboxsync /** Array of cached abbreviations, indexed by code. */
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync /** Used by rtDwarfAbbrev_Lookup when the result is uncachable. */
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync/** Pointer to instance data of the DWARF reader. */
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * DWARF cursor for reading byte data.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync /** The current position. */
d97357e2036109245c83ba553d0290212e28ea40vboxsync /** The number of bytes left to read. */
d97357e2036109245c83ba553d0290212e28ea40vboxsync /** The number of bytes left to read in the current unit. */
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync /** The DWARF debug info reader instance. */
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync /** Set if this is 64-bit DWARF, clear if 32-bit. */
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync /** Set if the format endian is native, clear if endian needs to be
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * inverted. */
d97357e2036109245c83ba553d0290212e28ea40vboxsync /** The size of a native address. */
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync /** The cursor status code. This is VINF_SUCCESS until some error
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * occurs. */
d97357e2036109245c83ba553d0290212e28ea40vboxsync /** The start of the area covered by the cursor.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * Used for repositioning the cursor relative to the start of a section. */
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync /** The section. */
d97357e2036109245c83ba553d0290212e28ea40vboxsync/** Pointer to a DWARF section reader. */
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * DWARF line number program state.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync /** Virtual Line Number Machine Registers. */
d97357e2036109245c83ba553d0290212e28ea40vboxsync /** Header. */
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync /** @name Include Path Table (0-based)
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync /** @name File Name Table (0-based, dummy zero entry)
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync /** The DWARF debug info reader instance. */
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync/** Pointer to a DWARF line number program state. */
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync/** @callback_method_impl{FNRTLDRENUMSEGS} */
3581dfd579fa647c95528b7f7d24740111a36903vboxsyncstatic DECLCALLBACK(int) rtDbgModHlpAddSegmentCallback(RTLDRMOD hLdrMod, PCRTLDRSEG pSeg, void *pvUser)
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync Log(("Segment %.*s: LinkAddress=%#llx RVA=%#llx cb=%#llx\n",
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync pSeg->cchName, pSeg->pchName, (uint64_t)pSeg->LinkAddress, (uint64_t)pSeg->RVA, pSeg->cb));
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync return pMod->pDbgVt->pfnSegmentAdd(pMod, pSeg->RVA, cb, pSeg->pchName, pSeg->cchName, 0 /*fFlags*/, NULL);
d97357e2036109245c83ba553d0290212e28ea40vboxsync return pMod->pDbgVt->pfnSegmentAdd(pMod, pSeg->LinkAddress, cb, pSeg->pchName, pSeg->cchName, 0 /*fFlags*/, NULL);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * Calls pfnSegmentAdd for each segment in the executable image.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @returns IPRT status code.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @param pMod The debug module.
3581dfd579fa647c95528b7f7d24740111a36903vboxsyncDECLHIDDEN(int) rtDbgModHlpAddSegmentsFromImage(PRTDBGMODINT pMod)
3581dfd579fa647c95528b7f7d24740111a36903vboxsync return pMod->pImgVt->pfnEnumSegments(pMod, rtDbgModHlpAddSegmentCallback, pMod);
10330aa61b0abd8a82e3dd9fb2ad064ec64ac900vboxsync * Loads a DWARF section from the image file.
10330aa61b0abd8a82e3dd9fb2ad064ec64ac900vboxsync * @returns IPRT status code.
d97357e2036109245c83ba553d0290212e28ea40vboxsync * @param pThis The DWARF instance.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @param enmSect The section to load.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsyncstatic int rtDbgModDwarfLoadSection(PRTDBGMODDWARF pThis, krtDbgModDwarfSect enmSect)
d97357e2036109245c83ba553d0290212e28ea40vboxsync * Don't load stuff twice.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * Sections that are not present cannot be loaded, treat them like they
3581dfd579fa647c95528b7f7d24740111a36903vboxsync * are empty
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * Sections must be readable with the current image interface.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * Do the job.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync return pThis->pMod->pImgVt->pfnMapPart(pThis->pMod, pThis->aSections[enmSect].offFile, pThis->aSections[enmSect].cb,
d97357e2036109245c83ba553d0290212e28ea40vboxsync * Unloads a DWARF section previously mapped by rtDbgModDwarfLoadSection.
3581dfd579fa647c95528b7f7d24740111a36903vboxsync * @returns IPRT status code.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @param pThis The DWARF instance.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @param enmSect The section to unload.
d97357e2036109245c83ba553d0290212e28ea40vboxsyncstatic int rtDbgModDwarfUnloadSection(PRTDBGMODDWARF pThis, krtDbgModDwarfSect enmSect)
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync int rc = pThis->pMod->pImgVt->pfnUnmapPart(pThis->pMod, pThis->aSections[enmSect].cb, &pThis->aSections[enmSect].pv);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * Converts to UTF-8 or otherwise makes sure it's valid UTF-8.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @returns IPRT status code.
d97357e2036109245c83ba553d0290212e28ea40vboxsync * @param pThis The DWARF instance.
d97357e2036109245c83ba553d0290212e28ea40vboxsync * @param ppsz Pointer to the string pointer. May be
3581dfd579fa647c95528b7f7d24740111a36903vboxsync * reallocated (RTStr*).
3331475701a5b12f98b3cfea07d5dca60072530fvboxsyncstatic int rtDbgModDwarfStringToUtf8(PRTDBGMODDWARF pThis, char **ppsz)
d97357e2036109245c83ba553d0290212e28ea40vboxsync * Convers a link address into a segment+offset or RVA.
d97357e2036109245c83ba553d0290212e28ea40vboxsync * @returns IPRT status code.
d97357e2036109245c83ba553d0290212e28ea40vboxsync * @param pThis The DWARF instance.
d97357e2036109245c83ba553d0290212e28ea40vboxsync * @param LinkAddress The address to convert..
d97357e2036109245c83ba553d0290212e28ea40vboxsync * @param piSeg The segment index.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @param poffSeg Where to return the segment offset.
d97357e2036109245c83ba553d0290212e28ea40vboxsyncstatic int rtDbgModDwarfLinkAddressToSegOffset(PRTDBGMODDWARF pThis, uint64_t LinkAddress,
d97357e2036109245c83ba553d0290212e28ea40vboxsync return pThis->pMod->pImgVt->pfnLinkAddressToSegOffset(pThis->pMod, LinkAddress, piSeg, poffSeg);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * DWARF Cursor.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * DWARF Cursor.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * DWARF Cursor.
d97357e2036109245c83ba553d0290212e28ea40vboxsync * Reads a 8-bit unsigned integer and advances the cursor.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @returns 8-bit unsigned integer. On error RTDWARFCURSOR::rc is set and @a
d97357e2036109245c83ba553d0290212e28ea40vboxsync * uErrValue is returned.
d97357e2036109245c83ba553d0290212e28ea40vboxsync * @param pCursor The cursor.
d97357e2036109245c83ba553d0290212e28ea40vboxsync * @param uErrValue What to return on read error.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsyncstatic uint8_t rtDwarfCursor_GetU8(PRTDWARFCURSOR pCursor, uint8_t uErrValue)
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * Reads a 16-bit unsigned integer and advances the cursor.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @returns 16-bit unsigned integer. On error RTDWARFCURSOR::rc is set and @a
d97357e2036109245c83ba553d0290212e28ea40vboxsync * uErrValue is returned.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @param pCursor The cursor.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @param uErrValue What to return on read error.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsyncstatic uint16_t rtDwarfCursor_GetU16(PRTDWARFCURSOR pCursor, uint16_t uErrValue)
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync uint16_t u16 = RT_MAKE_U16(pCursor->pb[0], pCursor->pb[1]);
3581dfd579fa647c95528b7f7d24740111a36903vboxsync * Reads a 32-bit unsigned integer and advances the cursor.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @returns 32-bit unsigned integer. On error RTDWARFCURSOR::rc is set and @a
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * uErrValue is returned.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @param pCursor The cursor.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @param uErrValue What to return on read error.
3581dfd579fa647c95528b7f7d24740111a36903vboxsyncstatic uint32_t rtDwarfCursor_GetU32(PRTDWARFCURSOR pCursor, uint32_t uErrValue)
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync uint32_t u32 = RT_MAKE_U32_FROM_U8(pCursor->pb[0], pCursor->pb[1], pCursor->pb[2], pCursor->pb[3]);
7c63dd76442a4896af6ce9c65d87461d3e7fe82bvboxsync * Reads a 64-bit unsigned integer and advances the cursor.
7c63dd76442a4896af6ce9c65d87461d3e7fe82bvboxsync * @returns 64-bit unsigned integer. On error RTDWARFCURSOR::rc is set and @a
7c63dd76442a4896af6ce9c65d87461d3e7fe82bvboxsync * uErrValue is returned.
7c63dd76442a4896af6ce9c65d87461d3e7fe82bvboxsync * @param pCursor The cursor.
7c63dd76442a4896af6ce9c65d87461d3e7fe82bvboxsync * @param uErrValue What to return on read error.
7c63dd76442a4896af6ce9c65d87461d3e7fe82bvboxsyncstatic uint64_t rtDwarfCursor_GetU64(PRTDWARFCURSOR pCursor, uint64_t uErrValue)
7c63dd76442a4896af6ce9c65d87461d3e7fe82bvboxsync uint64_t u64 = RT_MAKE_U64_FROM_U8(pCursor->pb[0], pCursor->pb[1], pCursor->pb[2], pCursor->pb[3],
7c63dd76442a4896af6ce9c65d87461d3e7fe82bvboxsync pCursor->pb[4], pCursor->pb[5], pCursor->pb[6], pCursor->pb[7]);
7c63dd76442a4896af6ce9c65d87461d3e7fe82bvboxsync * Reads an unsigned LEB128 encoded number.
7c63dd76442a4896af6ce9c65d87461d3e7fe82bvboxsync * @returns unsigned 64-bit number. On error RTDWARFCURSOR::rc is set and @a
7c63dd76442a4896af6ce9c65d87461d3e7fe82bvboxsync * uErrValue is returned.
7c63dd76442a4896af6ce9c65d87461d3e7fe82bvboxsync * @param pCursor The cursor.
7c63dd76442a4896af6ce9c65d87461d3e7fe82bvboxsync * @param uErrValue The value to return on error.
7c63dd76442a4896af6ce9c65d87461d3e7fe82bvboxsyncstatic uint64_t rtDwarfCursor_GetULeb128(PRTDWARFCURSOR pCursor, uint64_t uErrValue)
7c63dd76442a4896af6ce9c65d87461d3e7fe82bvboxsync * Special case - single byte.
7c63dd76442a4896af6ce9c65d87461d3e7fe82bvboxsync if (!(b & 0x80))
7c63dd76442a4896af6ce9c65d87461d3e7fe82bvboxsync * Generic case.
7c63dd76442a4896af6ce9c65d87461d3e7fe82bvboxsync /* Decode. */
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync } while (b & 0x80);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync /* Update the cursor. */
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync /* Check the range. */
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * Reads a signed LEB128 encoded number.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @returns signed 64-bit number. On error RTDWARFCURSOR::rc is set and @a
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * uErrValue is returned.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @param pCursor The cursor.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @param sErrValue The value to return on error.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsyncstatic int64_t rtDwarfCursor_GetSLeb128(PRTDWARFCURSOR pCursor, int64_t sErrValue)
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * Special case - single byte.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync if (!(b & 0x80))
d97357e2036109245c83ba553d0290212e28ea40vboxsync if (b & 0x40)
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * Generic case.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync /* Decode it. */
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync } while (b & 0x80);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync /* Update cursor. */
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync /* Check the range. */
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync /* Sign extend the value. */
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * Reads an unsigned LEB128 encoded number, max 32-bit width.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @returns unsigned 32-bit number. On error RTDWARFCURSOR::rc is set and @a
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * uErrValue is returned.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @param pCursor The cursor.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @param uErrValue The value to return on error.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsyncstatic uint32_t rtDwarfCursor_GetULeb128AsU32(PRTDWARFCURSOR pCursor, uint32_t uErrValue)
7c63dd76442a4896af6ce9c65d87461d3e7fe82bvboxsync uint64_t u64 = rtDwarfCursor_GetULeb128(pCursor, uErrValue);
72dd225c6e5a582baf12d8590c51d750b887fe5fvboxsync * Reads a signed LEB128 encoded number, max 32-bit width.
72dd225c6e5a582baf12d8590c51d750b887fe5fvboxsync * @returns signed 32-bit number. On error RTDWARFCURSOR::rc is set and @a
72dd225c6e5a582baf12d8590c51d750b887fe5fvboxsync * uErrValue is returned.
72dd225c6e5a582baf12d8590c51d750b887fe5fvboxsync * @param pCursor The cursor.
72dd225c6e5a582baf12d8590c51d750b887fe5fvboxsync * @param sErrValue The value to return on error.
72dd225c6e5a582baf12d8590c51d750b887fe5fvboxsyncstatic int32_t rtDwarfCursor_GetSLeb128AsS32(PRTDWARFCURSOR pCursor, int32_t sErrValue)
7c63dd76442a4896af6ce9c65d87461d3e7fe82bvboxsync int64_t s64 = rtDwarfCursor_GetSLeb128(pCursor, sErrValue);
f6ae8a8ac76f00fb06168fcf2e28e9f4ae8ed438vboxsync * Skips a LEB128 encoded number.
f6ae8a8ac76f00fb06168fcf2e28e9f4ae8ed438vboxsync * @returns IPRT status code.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @param pCursor The cursor.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsyncstatic int rtDwarfCursor_SkipLeb128(PRTDWARFCURSOR pCursor)
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * Reads a zero terminated string, advancing the cursor beyond the terminator.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @returns Pointer to the string.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @param pCursor The cursor.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @param pszErrValue What to return if the string isn't terminated
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * before the end of the unit.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsyncstatic const char *rtDwarfCursor_GetSZ(PRTDWARFCURSOR pCursor, const char *pszErrValue)
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * Reads an unsigned DWARF half number.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @returns The number. On error RTDWARFCURSOR::rc is set and @a
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * uErrValue is returned.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @param pCursor The cursor.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @param uErrValue What to return on error.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsyncstatic uint16_t rtDwarfCursor_GetUHalf(PRTDWARFCURSOR pCursor, uint16_t uErrValue)
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * Reads an unsigned DWARF byte number.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @returns The number. On error RTDWARFCURSOR::rc is set and @a
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * uErrValue is returned.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @param pCursor The cursor.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @param uErrValue What to return on error.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsyncstatic uint8_t rtDwarfCursor_GetUByte(PRTDWARFCURSOR pCursor, uint8_t uErrValue)
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * Reads a signed DWARF byte number.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @returns The number. On error RTDWARFCURSOR::rc is set and @a
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * uErrValue is returned.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @param pCursor The cursor.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @param uErrValue What to return on error.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsyncstatic int8_t rtDwarfCursor_GetSByte(PRTDWARFCURSOR pCursor, int8_t iErrValue)
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync return (int8_t)rtDwarfCursor_GetU8(pCursor, (uint8_t)iErrValue);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * Reads a unsigned DWARF offset value.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @returns The value. On error RTDWARFCURSOR::rc is set and @a
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * uErrValue is returned.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @param pCursor The cursor.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @param uErrValue What to return on error.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsyncstatic uint64_t rtDwarfCursor_GetUOff(PRTDWARFCURSOR pCursor, uint64_t uErrValue)
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync return rtDwarfCursor_GetU32(pCursor, (uint32_t)uErrValue);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * Reads a unsigned DWARF native offset value.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @returns The value. On error RTDWARFCURSOR::rc is set and @a
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * uErrValue is returned.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @param pCursor The cursor.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @param uErrValue What to return on error.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsyncstatic uint64_t rtDwarfCursor_GetNativeUOff(PRTDWARFCURSOR pCursor, uint64_t uErrValue)
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync case 1: return rtDwarfCursor_GetU8(pCursor, (uint8_t )uErrValue);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync case 2: return rtDwarfCursor_GetU16(pCursor, (uint16_t)uErrValue);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync case 4: return rtDwarfCursor_GetU32(pCursor, (uint32_t)uErrValue);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync case 8: return rtDwarfCursor_GetU64(pCursor, uErrValue);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * Gets the unit length, updating the unit length member and DWARF bitness
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * members of the cursor.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @returns The unit length.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @param pCursor The cursor.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsyncstatic uint64_t rtDwarfCursor_GetInitalLength(PRTDWARFCURSOR pCursor)
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * Read the initial length.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync uint64_t cbUnit = rtDwarfCursor_GetU32(pCursor, 0);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * Set the unit length, quitely fixing bad lengths.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * Calculates the section offset corresponding to the current cursor position.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @returns 32-bit section offset. If out of range, RTDWARFCURSOR::rc will be
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * set and UINT32_MAX returned.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @param pCursor The cursor.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsyncstatic uint32_t rtDwarfCursor_CalcSectOffsetU32(PRTDWARFCURSOR pCursor)
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync size_t off = (uint8_t const *)pCursor->pDwarfMod->aSections[pCursor->enmSect].pv - pCursor->pb;
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * Calculates an absolute cursor position from one relative to the current
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * cursor position.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @returns The absolute cursor position.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @param pCursor The cursor.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @param offRelative The relative position. Must be a positive
3331475701a5b12f98b3cfea07d5dca60072530fvboxsyncstatic uint8_t const *rtDwarfCursor_CalcPos(PRTDWARFCURSOR pCursor, size_t offRelative)
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * Advances the cursor to the given position.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @returns IPRT status code.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @param pCursor The cursor.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @param pbNewPos The new position - returned by
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * rtDwarfCursor_CalcPos().
3331475701a5b12f98b3cfea07d5dca60072530fvboxsyncstatic int rtDwarfCursor_AdvanceToPos(PRTDWARFCURSOR pCursor, uint8_t const *pbNewPos)
f6ae8a8ac76f00fb06168fcf2e28e9f4ae8ed438vboxsync uintptr_t cbAdj = (uintptr_t)pbNewPos - (uintptr_t)pCursor->pb;
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * Check if the cursor is at the end of the current DWARF unit.
f6ae8a8ac76f00fb06168fcf2e28e9f4ae8ed438vboxsync * @returns @c true if at the end, @c false if not.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @param pCursor The cursor.
f6ae8a8ac76f00fb06168fcf2e28e9f4ae8ed438vboxsyncstatic bool rtDwarfCursor_IsAtEndOfUnit(PRTDWARFCURSOR pCursor)
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * Skips to the end of the current unit.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @returns IPRT status code.
f6ae8a8ac76f00fb06168fcf2e28e9f4ae8ed438vboxsync * @param pCursor The cursor.
f6ae8a8ac76f00fb06168fcf2e28e9f4ae8ed438vboxsyncstatic int rtDwarfCursor_SkipUnit(PRTDWARFCURSOR pCursor)
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * Check if the cursor is at the end of the section (or whatever the cursor is
f6ae8a8ac76f00fb06168fcf2e28e9f4ae8ed438vboxsync * processing).
f6ae8a8ac76f00fb06168fcf2e28e9f4ae8ed438vboxsync * @returns @c true if at the end, @c false if not.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @param pCursor The cursor.
f6ae8a8ac76f00fb06168fcf2e28e9f4ae8ed438vboxsyncstatic bool rtDwarfCursor_IsAtEnd(PRTDWARFCURSOR pCursor)
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * Initialize a section reader cursor.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @returns IPRT status code.
f6ae8a8ac76f00fb06168fcf2e28e9f4ae8ed438vboxsync * @param pCursor The cursor.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @param pThis The dwarf module.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @param enmSect The name of the section to read.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsyncstatic int rtDwarfCursor_Init(PRTDWARFCURSOR pCursor, PRTDBGMODDWARF pThis, krtDbgModDwarfSect enmSect)
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync pCursor->pbStart = (uint8_t const *)pThis->aSections[enmSect].pv;
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync /** @todo ask the image about the endian used as well as the address
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * width. */
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * Initialize a section reader cursor with an offset.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @returns IPRT status code.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @param pCursor The cursor.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @param pThis The dwarf module.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @param enmSect The name of the section to read.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @param offSect The offset into the section.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsyncstatic int rtDwarfCursor_InitWithOffset(PRTDWARFCURSOR pCursor, PRTDBGMODDWARF pThis,
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync int rc = rtDwarfCursor_Init(pCursor, pThis, enmSect);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * Deletes a section reader initialized by rtDwarfCursor_Init.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @param pCursor The section reader.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsyncstatic void rtDwarfCursor_Delete(PRTDWARFCURSOR pCursor)
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync /* ... and a drop of poison. */
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * DWARF Line Numbers.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * DWARF Line Numbers.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * DWARF Line Numbers.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * Defines a file name.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @returns IPRT status code.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @param pLnState The line number program state.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @param pszFilename The name of the file.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @param idxInc The include path index.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsyncstatic int rtDwarfLine_DefineFileName(PRTDWARFLINESTATE pLnState, const char *pszFilename, uint64_t idxInc)
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * Resize the array if necessary.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync void *pv = RTMemRealloc(pLnState->papszFileNames, sizeof(pLnState->papszFileNames[0]) * (iFileName + 2));
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * Add the file name.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync || (RT_C_IS_ALPHA(pszFilename[0]) && pszFilename[1] == ':') )
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync pLnState->papszFileNames[iFileName] = RTStrDup(pszFilename);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync pLnState->papszFileNames[iFileName] = RTPathJoinA(pLnState->papszIncPaths[idxInc], pszFilename);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * Sanitize the name.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync int rc = rtDbgModDwarfStringToUtf8(pLnState->pDwarfMod, &pLnState->papszFileNames[iFileName]);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync Log((" File #%02u = '%s'\n", iFileName, pLnState->papszFileNames[iFileName]));
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * Adds a line to the table and resets parts of the state (DW_LNS_copy).
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @returns IPRT status code
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @param pLnState The line number program state.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsyncstatic int rtDwarfLine_AddLine(PRTDWARFLINESTATE pLnState)
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync const char *pszFile = pLnState->Regs.iFile < pLnState->cFileNames
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync : "<bad file name index>";
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync int rc = rtDbgModDwarfLinkAddressToSegOffset(pLnState->pDwarfMod, pLnState->Regs.uAddress, &iSeg, &offSeg);
f6ae8a8ac76f00fb06168fcf2e28e9f4ae8ed438vboxsync Log2(("rtDwarfLine_AddLine: %x:%08llx (%#llx) %s(%d)\n", iSeg, offSeg, pLnState->Regs.uAddress, pszFile, pLnState->Regs.uLine));
f6ae8a8ac76f00fb06168fcf2e28e9f4ae8ed438vboxsync rc = RTDbgModLineAdd(pLnState->pDwarfMod->hCnt, pszFile, pLnState->Regs.uLine, iSeg, offSeg, NULL);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync /* Ignore address conflicts for now. */
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * Reset the program to the start-of-sequence state.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @param pLnState The line number program state.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsyncstatic void rtDwarfLine_ResetState(PRTDWARFLINESTATE pLnState)
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync pLnState->Regs.fIsStatement = RT_BOOL(pLnState->Hdr.u8DefIsStmt);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * Runs the line number program.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @returns IPRT status code.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @param pLnState The line number program state.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @param pCursor The cursor.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsyncstatic int rtDwarfLine_RunProgram(PRTDWARFLINESTATE pLnState, PRTDWARFCURSOR pCursor)
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync LogFlow(("rtDwarfLine_RunProgram: cbUnitLeft=%zu\n", pCursor->cbUnitLeft));
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync uint8_t bOpCode = rtDwarfCursor_GetUByte(pCursor, DW_LNS_extended);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * Special opcode.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync uint8_t const bLogOpCode = bOpCode; NOREF(bLogOpCode);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync int32_t const cLineDelta = bOpCode % pLnState->Hdr.u8LineRange + (int32_t)pLnState->Hdr.s8LineBase;
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync uint64_t uTmp = bOpCode + pLnState->Regs.idxOp + bOpCode;
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync uint64_t const cAddressDelta = uTmp / pLnState->Hdr.cMaxOpsPerInstr * pLnState->Hdr.cbMinInstr;
3581dfd579fa647c95528b7f7d24740111a36903vboxsync uint64_t const cOpIndexDelta = uTmp % pLnState->Hdr.cMaxOpsPerInstr;
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync Log2(("DW Special Opcode %#04x: uLine + %d => %u; uAddress + %#llx => %#llx; idxOp + %#llx => %#llx\n",
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync bLogOpCode, cLineDelta, pLnState->Regs.uLine, cAddressDelta, pLnState->Regs.uAddress,
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * Standard opcode.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync uint64_t u64Adv = rtDwarfCursor_GetULeb128(pCursor, 0);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync pLnState->Regs.uAddress += (pLnState->Regs.idxOp + u64Adv) / pLnState->Hdr.cMaxOpsPerInstr
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync pLnState->Regs.idxOp += (pLnState->Regs.idxOp + u64Adv) % pLnState->Hdr.cMaxOpsPerInstr;
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync int32_t cLineDelta = rtDwarfCursor_GetSLeb128AsS32(pCursor, 0);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync Log2(("DW_LNS_advance_line: uLine + %d => %u\n", cLineDelta, pLnState->Regs.uLine));
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync pLnState->Regs.iFile = rtDwarfCursor_GetULeb128AsU32(pCursor, 0);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync Log2(("DW_LNS_set_file: iFile=%u\n", pLnState->Regs.iFile));
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync pLnState->Regs.uColumn = rtDwarfCursor_GetULeb128AsU32(pCursor, 0);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync pLnState->Regs.fIsStatement = !pLnState->Regs.fIsStatement;
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync pLnState->Regs.uAddress += (pLnState->Regs.idxOp + 255) / pLnState->Hdr.cMaxOpsPerInstr
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync pLnState->Regs.idxOp += (pLnState->Regs.idxOp + 255) % pLnState->Hdr.cMaxOpsPerInstr;
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync pLnState->Regs.uAddress += rtDwarfCursor_GetUHalf(pCursor, 0);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync pLnState->Regs.uIsa = rtDwarfCursor_GetULeb128AsU32(pCursor, 0);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync Log2(("DW_LNS_set_isa %#x\n", pLnState->Regs.uIsa));
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync unsigned cOpsToSkip = pLnState->Hdr.pacStdOperands[bOpCode - 1];
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync Log2(("rtDwarfLine_RunProgram: Unknown standard opcode %#x, %#x operands\n", bOpCode, cOpsToSkip));
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync while (cOpsToSkip-- > 0)
d97357e2036109245c83ba553d0290212e28ea40vboxsync * Extended opcode.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync /* The instruction has a length prefix. */
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync uint64_t cbInstr = rtDwarfCursor_GetULeb128(pCursor, UINT64_MAX);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync uint8_t const * const pbEndOfInstr = rtDwarfCursor_CalcPos(pCursor, cbInstr);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync /* Get the opcode and deal with it if we know it. */
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync#if 0 /* No need for this, I think. */
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync case 2: pLnState->Regs.uAddress = rtDwarfCursor_GetU16(pCursor, UINT16_MAX); break;
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync case 4: pLnState->Regs.uAddress = rtDwarfCursor_GetU32(pCursor, UINT32_MAX); break;
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync case 8: pLnState->Regs.uAddress = rtDwarfCursor_GetU64(pCursor, UINT64_MAX); break;
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync pLnState->Regs.uAddress = rtDwarfCursor_GetNativeUOff(pCursor, UINT64_MAX);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync Log2(("DW_LNE_set_address: %#llx\n", pLnState->Regs.uAddress));
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync const char *pszFilename = rtDwarfCursor_GetSZ(pCursor, NULL);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync uint32_t idxInc = rtDwarfCursor_GetULeb128AsU32(pCursor, UINT32_MAX);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync Log2(("DW_LNE_define_file: {%d}/%s\n", idxInc, pszFilename));
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync rc = rtDwarfCursor_AdvanceToPos(pCursor, pbEndOfInstr);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync rc = rtDwarfLine_DefineFileName(pLnState, pszFilename, idxInc);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync pLnState->Regs.uDiscriminator = rtDwarfCursor_GetULeb128AsU32(pCursor, UINT32_MAX);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync Log2(("DW_LNE_set_descriminator: %u\n", pLnState->Regs.uDiscriminator));
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync Log2(("rtDwarfLine_RunProgram: Unknown extended opcode %#x, length %#x\n", bOpCode, cbInstr));
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync /* Advance the cursor to the end of the instruction . */
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * Check the status before looping.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * Reads the include directories for a line number unit.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @returns IPRT status code
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @param pLnState The line number program state.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @param pCursor The cursor.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsyncstatic int rtDwarfLine_ReadFileNames(PRTDWARFLINESTATE pLnState, PRTDWARFCURSOR pCursor)
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync int rc = rtDwarfLine_DefineFileName(pLnState, "/<bad-zero-file-name-entry>", 0);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync const char *psz = rtDwarfCursor_GetSZ(pCursor, NULL);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync uint64_t idxInc = rtDwarfCursor_GetULeb128(pCursor, UINT64_MAX);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync rc = rtDwarfLine_DefineFileName(pLnState, psz, idxInc);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * Reads the include directories for a line number unit.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @returns IPRT status code
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @param pLnState The line number program state.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @param pCursor The cursor.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsyncstatic int rtDwarfLine_ReadIncludePaths(PRTDWARFLINESTATE pLnState, PRTDWARFCURSOR pCursor)
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync const char *psz = ""; /* The zeroth is the unit dir. */
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync void *pv = RTMemRealloc(pLnState->papszIncPaths, sizeof(pLnState->papszIncPaths[0]) * (pLnState->cIncPaths + 2));
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync Log((" Path #%02u = '%s'\n", pLnState->cIncPaths, psz));
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync pLnState->papszIncPaths[pLnState->cIncPaths] = psz;
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * Explodes the line number table for a compilation unit.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @returns IPRT status code
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @param pThis The DWARF instance.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @param pCursor The cursor to read the line number information
3331475701a5b12f98b3cfea07d5dca60072530fvboxsyncstatic int rtDwarfLine_ExplodeUnit(PRTDBGMODDWARF pThis, PRTDWARFCURSOR pCursor)
d97357e2036109245c83ba553d0290212e28ea40vboxsync * Parse the header.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync LnState.Hdr.uVer = rtDwarfCursor_GetUHalf(pCursor, 0);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync LnState.Hdr.offFirstOpcode = rtDwarfCursor_GetUOff(pCursor, 0);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync uint8_t const * const pbFirstOpcode = rtDwarfCursor_CalcPos(pCursor, LnState.Hdr.offFirstOpcode);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync LnState.Hdr.cbMinInstr = rtDwarfCursor_GetUByte(pCursor, 0);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync LnState.Hdr.cMaxOpsPerInstr = rtDwarfCursor_GetUByte(pCursor, 0);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync LnState.Hdr.u8DefIsStmt = rtDwarfCursor_GetUByte(pCursor, 0);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync LnState.Hdr.s8LineBase = rtDwarfCursor_GetSByte(pCursor, 0);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync LnState.Hdr.u8LineRange = rtDwarfCursor_GetUByte(pCursor, 0);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync LnState.Hdr.u8OpcodeBase = rtDwarfCursor_GetUByte(pCursor, 0);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync " uVer %d\n"
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync " offFirstOpcode %#llx\n"
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync " cbMinInstr %u\n"
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync " cMaxOpsPerInstr %u\n"
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync " u8DefIsStmt %u\n"
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync " s8LineBase %d\n"
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync " u8LineRange %u\n"
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync " u8OpcodeBase %u\n",
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync LnState.Hdr.uVer, LnState.Hdr.offFirstOpcode, LnState.Hdr.cbMinInstr, LnState.Hdr.cMaxOpsPerInstr,
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync LnState.Hdr.u8DefIsStmt, LnState.Hdr.s8LineBase, LnState.Hdr.u8LineRange, LnState.Hdr.u8OpcodeBase));
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync for (uint8_t iStdOpcode = 1; iStdOpcode < LnState.Hdr.u8OpcodeBase; iStdOpcode++)
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync rc = rtDwarfLine_ReadIncludePaths(&LnState, pCursor);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * Run the program....
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync rc = rtDwarfCursor_AdvanceToPos(pCursor, pbFirstOpcode);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * Clean up.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync while (i-- > 0)
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync Assert(rtDwarfCursor_IsAtEndOfUnit(pCursor) || RT_FAILURE(rc));
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * Explodes the line number table.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * The line numbers are insered into the debug info container.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @returns IPRT status code
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @param pThis The DWARF instance.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsyncstatic int rtDwarfLine_ExplodeAll(PRTDBGMODDWARF pThis)
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync if (!pThis->aSections[krtDbgModDwarfSect_line].fPresent)
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync int rc = rtDwarfCursor_Init(&Cursor, pThis, krtDbgModDwarfSect_line);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * DWARF Abbreviations.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * DWARF Abbreviations.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * DWARF Abbreviations.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * Deals with a cache miss in rtDwarfAbbrev_Lookup.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @returns Pointer to abbreviation cache entry (read only). May be rendered
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * invalid by subsequent calls to this function.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @param pThis The DWARF instance.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @param uCode The abbreviation code to lookup.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsyncstatic PCRTDBGMODDWARFABBREV rtDwarfAbbrev_LookupMiss(PRTDBGMODDWARF pThis, uint32_t uCode)
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * There is no entry with code zero.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * Resize the cache array if the code is considered cachable.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync void *pv = RTMemRealloc(pThis->paCachedAbbrevs, sizeof(pThis->paCachedAbbrevs[0]) * cNew);
f6ae8a8ac76f00fb06168fcf2e28e9f4ae8ed438vboxsync * Walk the abbreviations till we find the desired code.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync int rc = rtDwarfCursor_InitWithOffset(&Cursor, pThis, krtDbgModDwarfSect_abbrev, pThis->offCachedAbbrev);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * Search for the entry and fill the cache while doing so.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync /* Read the 'header'. */
f6ae8a8ac76f00fb06168fcf2e28e9f4ae8ed438vboxsync uint32_t const uCurCode = rtDwarfCursor_GetULeb128AsU32(&Cursor, 0);
f6ae8a8ac76f00fb06168fcf2e28e9f4ae8ed438vboxsync uint32_t const uCurTag = rtDwarfCursor_GetULeb128AsU32(&Cursor, 0);
f6ae8a8ac76f00fb06168fcf2e28e9f4ae8ed438vboxsync uint8_t const uChildren = rtDwarfCursor_GetU8(&Cursor, 0);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync /* Cache it? */
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync PRTDBGMODDWARFABBREV pEntry = &pThis->paCachedAbbrevs[uCurCode - 1];
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync pThis->paCachedAbbrevs[pThis->cCachedAbbrevs].fFilled = false;
f6ae8a8ac76f00fb06168fcf2e28e9f4ae8ed438vboxsync pEntry->offSpec = rtDwarfCursor_CalcSectOffsetU32(&Cursor);
f6ae8a8ac76f00fb06168fcf2e28e9f4ae8ed438vboxsync /* Skip the specification. */
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync /* Done? (Maximize cache filling.) */
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * Search for the entry with the desired code, no cache filling.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync /* Read the 'header'. */
f6ae8a8ac76f00fb06168fcf2e28e9f4ae8ed438vboxsync uint32_t const uCurCode = rtDwarfCursor_GetULeb128AsU32(&Cursor, 0);
f6ae8a8ac76f00fb06168fcf2e28e9f4ae8ed438vboxsync uint32_t const uCurTag = rtDwarfCursor_GetULeb128AsU32(&Cursor, 0);
f6ae8a8ac76f00fb06168fcf2e28e9f4ae8ed438vboxsync uint8_t const uChildren = rtDwarfCursor_GetU8(&Cursor, 0);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync /* Do we have a match? */
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync pRet->offSpec = rtDwarfCursor_CalcSectOffsetU32(&Cursor);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync /* Skip the specification. */
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * Looks up an abbreviation.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @returns Pointer to abbreviation cache entry (read only). May be rendered
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * invalid by subsequent calls to this function.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @param pThis The DWARF instance.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @param uCode The abbreviation code to lookup.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsyncstatic PCRTDBGMODDWARFABBREV rtDwarfAbbrev_Lookup(PRTDBGMODDWARF pThis, uint32_t uCode)
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * Sets the abbreviation offset of the current unit.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * This will flush the cached abbreviation entries if the offset differs from
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * the previous unit.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @param pThis The DWARF instance.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @param offAbbrev The offset into the abbreviation section.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsyncstatic void rtDwarfAbbrev_SetUnitOffset(PRTDBGMODDWARF pThis, uint32_t offAbbrev)
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * DWARF debug_info parser
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * DWARF debug_info parser
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * DWARF debug_info parser
3331475701a5b12f98b3cfea07d5dca60072530fvboxsyncstatic int rtDwarfInfo_LoadUnit(PRTDBGMODDWARF pThis, PRTDWARFCURSOR pCursor)
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * Read the compilation unit header.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync uint16_t const uVer = rtDwarfCursor_GetUHalf(pCursor, 0);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync uint64_t const offAbbrev = rtDwarfCursor_GetUOff(pCursor, UINT64_MAX);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync uint8_t const cbNativeAddr = rtDwarfCursor_GetU8(pCursor, UINT8_MAX);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * Set up the abbreviation cache and store the native address size in the cursor.
f6ae8a8ac76f00fb06168fcf2e28e9f4ae8ed438vboxsync * Parse DIEs.
f6ae8a8ac76f00fb06168fcf2e28e9f4ae8ed438vboxsync /** @todo The fun starts again here. */
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * Check status codes before continuing.
f6ae8a8ac76f00fb06168fcf2e28e9f4ae8ed438vboxsync * Extracts the symbols.
f6ae8a8ac76f00fb06168fcf2e28e9f4ae8ed438vboxsync * The symbols are insered into the debug info container.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @returns IPRT status code
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * @param pThis The DWARF instance.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsyncstatic int rtDwarfInfo_LoadAll(PRTDBGMODDWARF pThis)
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync int rc = rtDwarfCursor_Init(&Cursor, pThis, krtDbgModDwarfSect_info);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * DWARF Debug module implementation.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * DWARF Debug module implementation.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * DWARF Debug module implementation.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync/** @interface_method_impl{RTDBGMODVTDBG,pfnLineByAddr} */
3331475701a5b12f98b3cfea07d5dca60072530fvboxsyncstatic DECLCALLBACK(int) rtDbgModDwarf_LineByAddr(PRTDBGMODINT pMod, RTDBGSEGIDX iSeg, RTUINTPTR off,
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync PRTDBGMODDWARF pThis = (PRTDBGMODDWARF)pMod->pvDbgPriv;
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync return RTDbgModLineByAddr(pThis->hCnt, iSeg, off, poffDisp, pLineInfo);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync/** @interface_method_impl{RTDBGMODVTDBG,pfnLineByOrdinal} */
3331475701a5b12f98b3cfea07d5dca60072530fvboxsyncstatic DECLCALLBACK(int) rtDbgModDwarf_LineByOrdinal(PRTDBGMODINT pMod, uint32_t iOrdinal, PRTDBGLINE pLineInfo)
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync PRTDBGMODDWARF pThis = (PRTDBGMODDWARF)pMod->pvDbgPriv;
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync return RTDbgModLineByOrdinal(pThis->hCnt, iOrdinal, pLineInfo);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync/** @interface_method_impl{RTDBGMODVTDBG,pfnLineCount} */
3331475701a5b12f98b3cfea07d5dca60072530fvboxsyncstatic DECLCALLBACK(uint32_t) rtDbgModDwarf_LineCount(PRTDBGMODINT pMod)
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync PRTDBGMODDWARF pThis = (PRTDBGMODDWARF)pMod->pvDbgPriv;
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync/** @interface_method_impl{RTDBGMODVTDBG,pfnLineAdd} */
3331475701a5b12f98b3cfea07d5dca60072530fvboxsyncstatic DECLCALLBACK(int) rtDbgModDwarf_LineAdd(PRTDBGMODINT pMod, const char *pszFile, size_t cchFile, uint32_t uLineNo,
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync PRTDBGMODDWARF pThis = (PRTDBGMODDWARF)pMod->pvDbgPriv;
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync return RTDbgModLineAdd(pThis->hCnt, pszFile, uLineNo, iSeg, off, piOrdinal);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync/** @interface_method_impl{RTDBGMODVTDBG,pfnSymbolByAddr} */
3331475701a5b12f98b3cfea07d5dca60072530fvboxsyncstatic DECLCALLBACK(int) rtDbgModDwarf_SymbolByAddr(PRTDBGMODINT pMod, RTDBGSEGIDX iSeg, RTUINTPTR off,
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync PRTDBGMODDWARF pThis = (PRTDBGMODDWARF)pMod->pvDbgPriv;
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync return RTDbgModSymbolByAddr(pThis->hCnt, iSeg, off, poffDisp, pSymInfo);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync/** @interface_method_impl{RTDBGMODVTDBG,pfnSymbolByName} */
3331475701a5b12f98b3cfea07d5dca60072530fvboxsyncstatic DECLCALLBACK(int) rtDbgModDwarf_SymbolByName(PRTDBGMODINT pMod, const char *pszSymbol, size_t cchSymbol,
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync PRTDBGMODDWARF pThis = (PRTDBGMODDWARF)pMod->pvDbgPriv;
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync return RTDbgModSymbolByName(pThis->hCnt, pszSymbol/*, cchSymbol*/, pSymInfo);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync/** @interface_method_impl{RTDBGMODVTDBG,pfnSymbolByOrdinal} */
3331475701a5b12f98b3cfea07d5dca60072530fvboxsyncstatic DECLCALLBACK(int) rtDbgModDwarf_SymbolByOrdinal(PRTDBGMODINT pMod, uint32_t iOrdinal, PRTDBGSYMBOL pSymInfo)
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync PRTDBGMODDWARF pThis = (PRTDBGMODDWARF)pMod->pvDbgPriv;
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync return RTDbgModSymbolByOrdinal(pThis->hCnt, iOrdinal, pSymInfo);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync/** @interface_method_impl{RTDBGMODVTDBG,pfnSymbolCount} */
3331475701a5b12f98b3cfea07d5dca60072530fvboxsyncstatic DECLCALLBACK(uint32_t) rtDbgModDwarf_SymbolCount(PRTDBGMODINT pMod)
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync PRTDBGMODDWARF pThis = (PRTDBGMODDWARF)pMod->pvDbgPriv;
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync/** @interface_method_impl{RTDBGMODVTDBG,pfnSymbolAdd} */
3331475701a5b12f98b3cfea07d5dca60072530fvboxsyncstatic DECLCALLBACK(int) rtDbgModDwarf_SymbolAdd(PRTDBGMODINT pMod, const char *pszSymbol, size_t cchSymbol,
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync RTDBGSEGIDX iSeg, RTUINTPTR off, RTUINTPTR cb, uint32_t fFlags,
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync PRTDBGMODDWARF pThis = (PRTDBGMODDWARF)pMod->pvDbgPriv;
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync return RTDbgModSymbolAdd(pThis->hCnt, pszSymbol, iSeg, off, cb, fFlags, piOrdinal);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync/** @interface_method_impl{RTDBGMODVTDBG,pfnSegmentByIndex} */
3331475701a5b12f98b3cfea07d5dca60072530fvboxsyncstatic DECLCALLBACK(int) rtDbgModDwarf_SegmentByIndex(PRTDBGMODINT pMod, RTDBGSEGIDX iSeg, PRTDBGSEGMENT pSegInfo)
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync PRTDBGMODDWARF pThis = (PRTDBGMODDWARF)pMod->pvDbgPriv;
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync return RTDbgModSegmentByIndex(pThis->hCnt, iSeg, pSegInfo);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync/** @interface_method_impl{RTDBGMODVTDBG,pfnSegmentCount} */
3331475701a5b12f98b3cfea07d5dca60072530fvboxsyncstatic DECLCALLBACK(RTDBGSEGIDX) rtDbgModDwarf_SegmentCount(PRTDBGMODINT pMod)
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync PRTDBGMODDWARF pThis = (PRTDBGMODDWARF)pMod->pvDbgPriv;
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync/** @interface_method_impl{RTDBGMODVTDBG,pfnSegmentAdd} */
3331475701a5b12f98b3cfea07d5dca60072530fvboxsyncstatic DECLCALLBACK(int) rtDbgModDwarf_SegmentAdd(PRTDBGMODINT pMod, RTUINTPTR uRva, RTUINTPTR cb, const char *pszName, size_t cchName,
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync PRTDBGMODDWARF pThis = (PRTDBGMODDWARF)pMod->pvDbgPriv;
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync return RTDbgModSegmentAdd(pThis->hCnt, uRva, cb, pszName, fFlags, piSeg);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync/** @interface_method_impl{RTDBGMODVTDBG,pfnImageSize} */
3331475701a5b12f98b3cfea07d5dca60072530fvboxsyncstatic DECLCALLBACK(RTUINTPTR) rtDbgModDwarf_ImageSize(PRTDBGMODINT pMod)
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync PRTDBGMODDWARF pThis = (PRTDBGMODDWARF)pMod->pvDbgPriv;
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync/** @interface_method_impl{RTDBGMODVTDBG,pfnRvaToSegOff} */
3331475701a5b12f98b3cfea07d5dca60072530fvboxsyncstatic DECLCALLBACK(RTDBGSEGIDX) rtDbgModDwarf_RvaToSegOff(PRTDBGMODINT pMod, RTUINTPTR uRva, PRTUINTPTR poffSeg)
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync PRTDBGMODDWARF pThis = (PRTDBGMODDWARF)pMod->pvDbgPriv;
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync return RTDbgModRvaToSegOff(pThis->hCnt, uRva, poffSeg);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync/** @interface_method_impl{RTDBGMODVTDBG,pfnClose} */
3331475701a5b12f98b3cfea07d5dca60072530fvboxsyncstatic DECLCALLBACK(int) rtDbgModDwarf_Close(PRTDBGMODINT pMod)
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync PRTDBGMODDWARF pThis = (PRTDBGMODDWARF)pMod->pvDbgPriv;
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync for (unsigned iSect = 0; iSect < RT_ELEMENTS(pThis->aSections); iSect++)
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync pThis->pMod->pImgVt->pfnUnmapPart(pThis->pMod, pThis->aSections[iSect].cb, &pThis->aSections[iSect].pv);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync/** @callback_method_impl{FNRTLDRENUMDBG} */
3331475701a5b12f98b3cfea07d5dca60072530fvboxsyncstatic DECLCALLBACK(int) rtDbgModDwarfEnumCallback(RTLDRMOD hLdrMod, uint32_t iDbgInfo, RTLDRDBGINFOTYPE enmType,
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync uint16_t iMajorVer, uint16_t iMinorVer, const char *pszPartNm,
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync RTFOFF offFile, RTLDRADDR LinkAddress, RTLDRADDR cb,
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * Skip stuff we can't handle.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * Must have a part name starting with debug_ and possibly prefixed by dots
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * or underscores.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync if (!strncmp(pszPartNm, ".debug_", sizeof(".debug_") - 1)) /* ELF */
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync else if (!strncmp(pszPartNm, "__debug_", sizeof("__debug_") - 1)) /* Mach-O */
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync AssertMsgFailedReturn(("%s\n", pszPartNm), VINF_SUCCESS /*ignore*/);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * Figure out which part we're talking about.
d97357e2036109245c83ba553d0290212e28ea40vboxsync if (0) { /* dummy */ }
3581dfd579fa647c95528b7f7d24740111a36903vboxsync#define ELSE_IF_STRCMP_SET(a_Name) else if (!strcmp(pszPartNm, #a_Name)) enmSect = krtDbgModDwarfSect_ ## a_Name
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * Record the section.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync AssertMsgReturn(!pThis->aSections[enmSect].fPresent, ("duplicate %s\n", pszPartNm), VINF_SUCCESS /*ignore*/);
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync/** @interface_method_impl{RTDBGMODVTDBG,pfnTryOpen} */
d97357e2036109245c83ba553d0290212e28ea40vboxsyncstatic DECLCALLBACK(int) rtDbgModDwarf_TryOpen(PRTDBGMODINT pMod)
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * DWARF is only supported when part of an image.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync * Enumerate the debug info in the module, looking for DWARF bits.
d97357e2036109245c83ba553d0290212e28ea40vboxsync PRTDBGMODDWARF pThis = (PRTDBGMODDWARF)RTMemAllocZ(sizeof(*pThis));
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync int rc = pMod->pImgVt->pfnEnumDbgInfo(pMod, rtDbgModDwarfEnumCallback, pThis);
d97357e2036109245c83ba553d0290212e28ea40vboxsync if (pThis->aSections[krtDbgModDwarfSect_info].fPresent)
d97357e2036109245c83ba553d0290212e28ea40vboxsync * Extract / explode the data we want (symbols and line numbers)
d97357e2036109245c83ba553d0290212e28ea40vboxsync * storing them in a container module.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync rc = RTDbgModCreate(&pThis->hCnt, pMod->pszName, 0 /*cbSeg*/, 0 /*fFlags*/);
d97357e2036109245c83ba553d0290212e28ea40vboxsync * Free the cached abbreviations and unload all sections.
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync pThis->cCachedAbbrevs = pThis->cCachedAbbrevsAlloced = 0;
d97357e2036109245c83ba553d0290212e28ea40vboxsync for (unsigned iSect = 0; iSect < RT_ELEMENTS(pThis->aSections); iSect++)
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync pThis->pMod->pImgVt->pfnUnmapPart(pThis->pMod, pThis->aSections[iSect].cb,
d97357e2036109245c83ba553d0290212e28ea40vboxsync /* bail out. */
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync/** Virtual function table for the DWARF debug info reader. */
d97357e2036109245c83ba553d0290212e28ea40vboxsyncDECL_HIDDEN_CONST(RTDBGMODVTDBG) const g_rtDbgModVtDbgDwarf =
d97357e2036109245c83ba553d0290212e28ea40vboxsync /*.pfnSegmentCount = */ rtDbgModDwarf_SegmentCount,
d97357e2036109245c83ba553d0290212e28ea40vboxsync /*.pfnSegmentByIndex = */ rtDbgModDwarf_SegmentByIndex,
d97357e2036109245c83ba553d0290212e28ea40vboxsync /*.pfnSymbolByOrdinal = */ rtDbgModDwarf_SymbolByOrdinal,
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync /*.pfnSymbolByName = */ rtDbgModDwarf_SymbolByName,
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync /*.pfnSymbolByAddr = */ rtDbgModDwarf_SymbolByAddr,
3331475701a5b12f98b3cfea07d5dca60072530fvboxsync /*.pfnLineByOrdinal = */ rtDbgModDwarf_LineByOrdinal,