diff options
Diffstat (limited to 'src/VBox/Runtime/common/dbg/dbgmod.cpp')
| -rw-r--r-- | src/VBox/Runtime/common/dbg/dbgmod.cpp | 2256 |
1 files changed, 2256 insertions, 0 deletions
diff --git a/src/VBox/Runtime/common/dbg/dbgmod.cpp b/src/VBox/Runtime/common/dbg/dbgmod.cpp new file mode 100644 index 00000000..b8f984f6 --- /dev/null +++ b/src/VBox/Runtime/common/dbg/dbgmod.cpp @@ -0,0 +1,2256 @@ +/* $Id: dbgmod.cpp $ */ +/** @file + * IPRT - Debug Module Interpreter. + */ + +/* + * 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 <iprt/dbg.h> +#include "internal/iprt.h" + +#include <iprt/alloca.h> +#include <iprt/asm.h> +#include <iprt/assert.h> +#include <iprt/avl.h> +#include <iprt/err.h> +#include <iprt/initterm.h> +#include <iprt/log.h> +#include <iprt/mem.h> +#include <iprt/once.h> +#include <iprt/param.h> +#include <iprt/path.h> +#include <iprt/semaphore.h> +#include <iprt/strcache.h> +#include <iprt/string.h> +#include <iprt/uuid.h> +#include "internal/dbgmod.h" +#include "internal/magics.h" + + +/********************************************************************************************************************************* +* Structures and Typedefs * +*********************************************************************************************************************************/ +/** Debug info interpreter registration record. */ +typedef struct RTDBGMODREGDBG +{ + /** Pointer to the next record. */ + struct RTDBGMODREGDBG *pNext; + /** Pointer to the virtual function table for the interpreter. */ + PCRTDBGMODVTDBG pVt; + /** Usage counter. */ + uint32_t volatile cUsers; +} RTDBGMODREGDBG; +typedef RTDBGMODREGDBG *PRTDBGMODREGDBG; + +/** Image interpreter registration record. */ +typedef struct RTDBGMODREGIMG +{ + /** Pointer to the next record. */ + struct RTDBGMODREGIMG *pNext; + /** Pointer to the virtual function table for the interpreter. */ + PCRTDBGMODVTIMG pVt; + /** Usage counter. */ + uint32_t volatile cUsers; +} RTDBGMODREGIMG; +typedef RTDBGMODREGIMG *PRTDBGMODREGIMG; + + +/********************************************************************************************************************************* +* Defined Constants And Macros * +*********************************************************************************************************************************/ +/** Validates a debug module handle and returns rc if not valid. */ +#define RTDBGMOD_VALID_RETURN_RC(pDbgMod, rc) \ + do { \ + AssertPtrReturn((pDbgMod), (rc)); \ + AssertReturn((pDbgMod)->u32Magic == RTDBGMOD_MAGIC, (rc)); \ + AssertReturn((pDbgMod)->cRefs > 0, (rc)); \ + } while (0) + +/** Locks the debug module. */ +#define RTDBGMOD_LOCK(pDbgMod) \ + do { \ + int rcLock = RTCritSectEnter(&(pDbgMod)->CritSect); \ + AssertRC(rcLock); \ + } while (0) + +/** Unlocks the debug module. */ +#define RTDBGMOD_UNLOCK(pDbgMod) \ + do { \ + int rcLock = RTCritSectLeave(&(pDbgMod)->CritSect); \ + AssertRC(rcLock); \ + } while (0) + + +/********************************************************************************************************************************* +* Global Variables * +*********************************************************************************************************************************/ +/** Init once object for lazy registration of the built-in image and debug + * info interpreters. */ +static RTONCE g_rtDbgModOnce = RTONCE_INITIALIZER; +/** Read/Write semaphore protecting the list of registered interpreters. */ +static RTSEMRW g_hDbgModRWSem = NIL_RTSEMRW; +/** List of registered image interpreters. */ +static PRTDBGMODREGIMG g_pImgHead; +/** List of registered debug infor interpreters. */ +static PRTDBGMODREGDBG g_pDbgHead; +/** String cache for the debug info interpreters. + * RTSTRCACHE is thread safe. */ +DECLHIDDEN(RTSTRCACHE) g_hDbgModStrCache = NIL_RTSTRCACHE; + + + + + +/** + * Cleanup debug info interpreter globals. + * + * @param enmReason The cause of the termination. + * @param iStatus The meaning of this depends on enmReason. + * @param pvUser User argument, unused. + */ +static DECLCALLBACK(void) rtDbgModTermCallback(RTTERMREASON enmReason, int32_t iStatus, void *pvUser) +{ + NOREF(iStatus); NOREF(pvUser); + if (enmReason == RTTERMREASON_UNLOAD) + { + RTSemRWDestroy(g_hDbgModRWSem); + g_hDbgModRWSem = NIL_RTSEMRW; + + RTStrCacheDestroy(g_hDbgModStrCache); + g_hDbgModStrCache = NIL_RTSTRCACHE; + + PRTDBGMODREGDBG pDbg = g_pDbgHead; + g_pDbgHead = NULL; + while (pDbg) + { + PRTDBGMODREGDBG pNext = pDbg->pNext; + AssertMsg(pDbg->cUsers == 0, ("%#x %s\n", pDbg->cUsers, pDbg->pVt->pszName)); + RTMemFree(pDbg); + pDbg = pNext; + } + + PRTDBGMODREGIMG pImg = g_pImgHead; + g_pImgHead = NULL; + while (pImg) + { + PRTDBGMODREGIMG pNext = pImg->pNext; + AssertMsg(pImg->cUsers == 0, ("%#x %s\n", pImg->cUsers, pImg->pVt->pszName)); + RTMemFree(pImg); + pImg = pNext; + } + } +} + + +/** + * Internal worker for register a debug interpreter. + * + * Called while owning the write lock or when locking isn't required. + * + * @returns IPRT status code. + * @retval VERR_NO_MEMORY + * @retval VERR_ALREADY_EXISTS + * + * @param pVt The virtual function table of the debug + * module interpreter. + */ +static int rtDbgModDebugInterpreterRegister(PCRTDBGMODVTDBG pVt) +{ + /* + * Search or duplicate registration. + */ + PRTDBGMODREGDBG pPrev = NULL; + for (PRTDBGMODREGDBG pCur = g_pDbgHead; pCur; pCur = pCur->pNext) + { + if (pCur->pVt == pVt) + return VERR_ALREADY_EXISTS; + if (!strcmp(pCur->pVt->pszName, pVt->pszName)) + return VERR_ALREADY_EXISTS; + pPrev = pCur; + } + + /* + * Create a new record and add it to the end of the list. + */ + PRTDBGMODREGDBG pReg = (PRTDBGMODREGDBG)RTMemAlloc(sizeof(*pReg)); + if (!pReg) + return VERR_NO_MEMORY; + pReg->pVt = pVt; + pReg->cUsers = 0; + pReg->pNext = NULL; + if (pPrev) + pPrev->pNext = pReg; + else + g_pDbgHead = pReg; + return VINF_SUCCESS; +} + + +/** + * Internal worker for register a image interpreter. + * + * Called while owning the write lock or when locking isn't required. + * + * @returns IPRT status code. + * @retval VERR_NO_MEMORY + * @retval VERR_ALREADY_EXISTS + * + * @param pVt The virtual function table of the image + * interpreter. + */ +static int rtDbgModImageInterpreterRegister(PCRTDBGMODVTIMG pVt) +{ + /* + * Search or duplicate registration. + */ + PRTDBGMODREGIMG pPrev = NULL; + for (PRTDBGMODREGIMG pCur = g_pImgHead; pCur; pCur = pCur->pNext) + { + if (pCur->pVt == pVt) + return VERR_ALREADY_EXISTS; + if (!strcmp(pCur->pVt->pszName, pVt->pszName)) + return VERR_ALREADY_EXISTS; + pPrev = pCur; + } + + /* + * Create a new record and add it to the end of the list. + */ + PRTDBGMODREGIMG pReg = (PRTDBGMODREGIMG)RTMemAlloc(sizeof(*pReg)); + if (!pReg) + return VERR_NO_MEMORY; + pReg->pVt = pVt; + pReg->cUsers = 0; + pReg->pNext = NULL; + if (pPrev) + pPrev->pNext = pReg; + else + g_pImgHead = pReg; + return VINF_SUCCESS; +} + + +/** + * Do-once callback that initializes the read/write semaphore and registers + * the built-in interpreters. + * + * @returns IPRT status code. + * @param pvUser NULL. + */ +static DECLCALLBACK(int) rtDbgModInitOnce(void *pvUser) +{ + NOREF(pvUser); + + /* + * Create the semaphore and string cache. + */ + int rc = RTSemRWCreate(&g_hDbgModRWSem); + AssertRCReturn(rc, rc); + + rc = RTStrCacheCreate(&g_hDbgModStrCache, "RTDBGMOD"); + if (RT_SUCCESS(rc)) + { + /* + * Register the interpreters. + */ + rc = rtDbgModDebugInterpreterRegister(&g_rtDbgModVtDbgNm); + if (RT_SUCCESS(rc)) + rc = rtDbgModDebugInterpreterRegister(&g_rtDbgModVtDbgMapSym); + if (RT_SUCCESS(rc)) + rc = rtDbgModDebugInterpreterRegister(&g_rtDbgModVtDbgDwarf); + if (RT_SUCCESS(rc)) + rc = rtDbgModDebugInterpreterRegister(&g_rtDbgModVtDbgCodeView); +#ifdef RT_OS_WINDOWS + if (RT_SUCCESS(rc)) + rc = rtDbgModDebugInterpreterRegister(&g_rtDbgModVtDbgDbgHelp); +#endif + if (RT_SUCCESS(rc)) + rc = rtDbgModImageInterpreterRegister(&g_rtDbgModVtImgLdr); + if (RT_SUCCESS(rc)) + { + /* + * Finally, register the IPRT cleanup callback. + */ + rc = RTTermRegisterCallback(rtDbgModTermCallback, NULL); + if (RT_SUCCESS(rc)) + return VINF_SUCCESS; + + /* bail out: use the termination callback. */ + } + } + else + g_hDbgModStrCache = NIL_RTSTRCACHE; + rtDbgModTermCallback(RTTERMREASON_UNLOAD, 0, NULL); + return rc; +} + + +/** + * Performs lazy init of our global variables. + * @returns IPRT status code. + */ +DECLINLINE(int) rtDbgModLazyInit(void) +{ + return RTOnce(&g_rtDbgModOnce, rtDbgModInitOnce, NULL); +} + + +RTDECL(int) RTDbgModCreate(PRTDBGMOD phDbgMod, const char *pszName, RTUINTPTR cbSeg, uint32_t fFlags) +{ + /* + * Input validation and lazy initialization. + */ + AssertPtrReturn(phDbgMod, VERR_INVALID_POINTER); + *phDbgMod = NIL_RTDBGMOD; + AssertPtrReturn(pszName, VERR_INVALID_POINTER); + AssertReturn(*pszName, VERR_INVALID_PARAMETER); + AssertReturn(fFlags == 0 || fFlags == RTDBGMOD_F_NOT_DEFERRED, VERR_INVALID_PARAMETER); + + int rc = rtDbgModLazyInit(); + if (RT_FAILURE(rc)) + return rc; + + /* + * Allocate a new module instance. + */ + PRTDBGMODINT pDbgMod = (PRTDBGMODINT)RTMemAllocZ(sizeof(*pDbgMod)); + if (!pDbgMod) + return VERR_NO_MEMORY; + pDbgMod->u32Magic = RTDBGMOD_MAGIC; + pDbgMod->cRefs = 1; + rc = RTCritSectInit(&pDbgMod->CritSect); + if (RT_SUCCESS(rc)) + { + pDbgMod->pszImgFileSpecified = RTStrCacheEnter(g_hDbgModStrCache, pszName); + pDbgMod->pszName = RTStrCacheEnterLower(g_hDbgModStrCache, RTPathFilenameEx(pszName, RTPATH_STR_F_STYLE_DOS)); + if (pDbgMod->pszName) + { + rc = rtDbgModContainerCreate(pDbgMod, cbSeg); + if (RT_SUCCESS(rc)) + { + *phDbgMod = pDbgMod; + return rc; + } + RTStrCacheRelease(g_hDbgModStrCache, pDbgMod->pszImgFile); + RTStrCacheRelease(g_hDbgModStrCache, pDbgMod->pszName); + } + RTCritSectDelete(&pDbgMod->CritSect); + } + + RTMemFree(pDbgMod); + return rc; +} +RT_EXPORT_SYMBOL(RTDbgModCreate); + + +RTDECL(int) RTDbgModCreateFromMap(PRTDBGMOD phDbgMod, const char *pszFilename, const char *pszName, + RTUINTPTR uSubtrahend, RTDBGCFG hDbgCfg) +{ + RT_NOREF_PV(hDbgCfg); + + /* + * Input validation and lazy initialization. + */ + AssertPtrReturn(phDbgMod, VERR_INVALID_POINTER); + *phDbgMod = NIL_RTDBGMOD; + AssertPtrReturn(pszFilename, VERR_INVALID_POINTER); + AssertReturn(*pszFilename, VERR_INVALID_PARAMETER); + AssertPtrNullReturn(pszName, VERR_INVALID_POINTER); + AssertReturn(uSubtrahend == 0, VERR_NOT_IMPLEMENTED); /** @todo implement uSubtrahend. */ + + int rc = rtDbgModLazyInit(); + if (RT_FAILURE(rc)) + return rc; + + if (!pszName) + pszName = RTPathFilenameEx(pszFilename, RTPATH_STR_F_STYLE_DOS); + + /* + * Allocate a new module instance. + */ + PRTDBGMODINT pDbgMod = (PRTDBGMODINT)RTMemAllocZ(sizeof(*pDbgMod)); + if (!pDbgMod) + return VERR_NO_MEMORY; + pDbgMod->u32Magic = RTDBGMOD_MAGIC; + pDbgMod->cRefs = 1; + rc = RTCritSectInit(&pDbgMod->CritSect); + if (RT_SUCCESS(rc)) + { + pDbgMod->pszName = RTStrCacheEnterLower(g_hDbgModStrCache, pszName); + if (pDbgMod->pszName) + { + pDbgMod->pszDbgFile = RTStrCacheEnter(g_hDbgModStrCache, pszFilename); + if (pDbgMod->pszDbgFile) + { + /* + * Try the map file readers. + */ + rc = RTSemRWRequestRead(g_hDbgModRWSem, RT_INDEFINITE_WAIT); + if (RT_SUCCESS(rc)) + { + rc = VERR_DBG_NO_MATCHING_INTERPRETER; + for (PRTDBGMODREGDBG pCur = g_pDbgHead; pCur; pCur = pCur->pNext) + { + if (pCur->pVt->fSupports & RT_DBGTYPE_MAP) + { + pDbgMod->pDbgVt = pCur->pVt; + pDbgMod->pvDbgPriv = NULL; + rc = pCur->pVt->pfnTryOpen(pDbgMod, RTLDRARCH_WHATEVER); + if (RT_SUCCESS(rc)) + { + ASMAtomicIncU32(&pCur->cUsers); + RTSemRWReleaseRead(g_hDbgModRWSem); + + *phDbgMod = pDbgMod; + return rc; + } + } + } + + /* bail out */ + RTSemRWReleaseRead(g_hDbgModRWSem); + } + RTStrCacheRelease(g_hDbgModStrCache, pDbgMod->pszName); + } + else + rc = VERR_NO_STR_MEMORY; + RTStrCacheRelease(g_hDbgModStrCache, pDbgMod->pszDbgFile); + } + else + rc = VERR_NO_STR_MEMORY; + RTCritSectDelete(&pDbgMod->CritSect); + } + + RTMemFree(pDbgMod); + return rc; +} +RT_EXPORT_SYMBOL(RTDbgModCreateFromMap); + + + +/* + * + * E x e c u t a b l e I m a g e F i l e s + * E x e c u t a b l e I m a g e F i l e s + * E x e c u t a b l e I m a g e F i l e s + * + */ + + +/** + * Opens debug information for an image. + * + * @returns IPRT status code + * @param pDbgMod The debug module structure. + * + * @note This will generally not look for debug info stored in external + * files. rtDbgModFromPeImageExtDbgInfoCallback can help with that. + */ +static int rtDbgModOpenDebugInfoInsideImage(PRTDBGMODINT pDbgMod) +{ + AssertReturn(!pDbgMod->pDbgVt, VERR_DBG_MOD_IPE); + AssertReturn(pDbgMod->pImgVt, VERR_DBG_MOD_IPE); + + int rc = RTSemRWRequestRead(g_hDbgModRWSem, RT_INDEFINITE_WAIT); + if (RT_SUCCESS(rc)) + { + for (PRTDBGMODREGDBG pDbg = g_pDbgHead; pDbg; pDbg = pDbg->pNext) + { + pDbgMod->pDbgVt = pDbg->pVt; + pDbgMod->pvDbgPriv = NULL; + rc = pDbg->pVt->pfnTryOpen(pDbgMod, pDbgMod->pImgVt->pfnGetArch(pDbgMod)); + if (RT_SUCCESS(rc)) + { + /* + * That's it! + */ + ASMAtomicIncU32(&pDbg->cUsers); + RTSemRWReleaseRead(g_hDbgModRWSem); + return VINF_SUCCESS; + } + + pDbgMod->pDbgVt = NULL; + Assert(pDbgMod->pvDbgPriv == NULL); + } + RTSemRWReleaseRead(g_hDbgModRWSem); + } + + return VERR_DBG_NO_MATCHING_INTERPRETER; +} + + +/** @callback_method_impl{FNRTDBGCFGOPEN} */ +static DECLCALLBACK(int) rtDbgModExtDbgInfoOpenCallback(RTDBGCFG hDbgCfg, const char *pszFilename, void *pvUser1, void *pvUser2) +{ + PRTDBGMODINT pDbgMod = (PRTDBGMODINT)pvUser1; + PCRTLDRDBGINFO pDbgInfo = (PCRTLDRDBGINFO)pvUser2; + RT_NOREF_PV(pDbgInfo); /** @todo consider a more direct search for a interpreter. */ + RT_NOREF_PV(hDbgCfg); + + Assert(!pDbgMod->pDbgVt); + Assert(!pDbgMod->pvDbgPriv); + Assert(!pDbgMod->pszDbgFile); + Assert(pDbgMod->pImgVt); + + /* + * Set the debug file name and try possible interpreters. + */ + pDbgMod->pszDbgFile = RTStrCacheEnter(g_hDbgModStrCache, pszFilename); + + int rc = RTSemRWRequestRead(g_hDbgModRWSem, RT_INDEFINITE_WAIT); + if (RT_SUCCESS(rc)) + { + for (PRTDBGMODREGDBG pDbg = g_pDbgHead; pDbg; pDbg = pDbg->pNext) + { + pDbgMod->pDbgVt = pDbg->pVt; + pDbgMod->pvDbgPriv = NULL; + rc = pDbg->pVt->pfnTryOpen(pDbgMod, pDbgMod->pImgVt->pfnGetArch(pDbgMod)); + if (RT_SUCCESS(rc)) + { + /* + * Got it! + */ + ASMAtomicIncU32(&pDbg->cUsers); + RTSemRWReleaseRead(g_hDbgModRWSem); + return VINF_CALLBACK_RETURN; + } + + pDbgMod->pDbgVt = NULL; + Assert(pDbgMod->pvDbgPriv == NULL); + } + RTSemRWReleaseRead(g_hDbgModRWSem); + } + + /* No joy. */ + RTStrCacheRelease(g_hDbgModStrCache, pDbgMod->pszDbgFile); + pDbgMod->pszDbgFile = NULL; + return rc; +} + + +/** + * Argument package used by rtDbgModOpenDebugInfoExternalToImage. + */ +typedef struct RTDBGMODOPENDIETI +{ + PRTDBGMODINT pDbgMod; + RTDBGCFG hDbgCfg; +} RTDBGMODOPENDIETI; + + +/** @callback_method_impl{FNRTLDRENUMDBG} */ +static DECLCALLBACK(int) +rtDbgModOpenDebugInfoExternalToImageCallback(RTLDRMOD hLdrMod, PCRTLDRDBGINFO pDbgInfo, void *pvUser) +{ + RTDBGMODOPENDIETI *pArgs = (RTDBGMODOPENDIETI *)pvUser; + RT_NOREF_PV(hLdrMod); + + Assert(pDbgInfo->enmType > RTLDRDBGINFOTYPE_INVALID && pDbgInfo->enmType < RTLDRDBGINFOTYPE_END); + const char *pszExtFile = pDbgInfo->pszExtFile; + if (!pszExtFile) + { + /* + * If a external debug type comes without a file name, calculate a + * likely debug filename for it. (Hack for NT4 drivers.) + */ + const char *pszExt = NULL; + if (pDbgInfo->enmType == RTLDRDBGINFOTYPE_CODEVIEW_DBG) + pszExt = ".dbg"; + else if ( pDbgInfo->enmType == RTLDRDBGINFOTYPE_CODEVIEW_PDB20 + || pDbgInfo->enmType == RTLDRDBGINFOTYPE_CODEVIEW_PDB70) + pszExt = ".pdb"; + if (pszExt && pArgs->pDbgMod->pszName) + { + size_t cchName = strlen(pArgs->pDbgMod->pszName); + char *psz = (char *)alloca(cchName + strlen(pszExt) + 1); + if (psz) + { + memcpy(psz, pArgs->pDbgMod->pszName, cchName + 1); + RTPathStripSuffix(psz); + pszExtFile = strcat(psz, pszExt); + } + } + + if (!pszExtFile) + { + Log2(("rtDbgModOpenDebugInfoExternalToImageCallback: enmType=%d\n", pDbgInfo->enmType)); + return VINF_SUCCESS; + } + } + + /* + * Switch on type and call the appropriate search function. + */ + int rc; + switch (pDbgInfo->enmType) + { + case RTLDRDBGINFOTYPE_CODEVIEW_PDB70: + rc = RTDbgCfgOpenPdb70(pArgs->hDbgCfg, pszExtFile, + &pDbgInfo->u.Pdb70.Uuid, + pDbgInfo->u.Pdb70.uAge, + rtDbgModExtDbgInfoOpenCallback, pArgs->pDbgMod, (void *)pDbgInfo); + break; + + case RTLDRDBGINFOTYPE_CODEVIEW_PDB20: + rc = RTDbgCfgOpenPdb20(pArgs->hDbgCfg, pszExtFile, + pDbgInfo->u.Pdb20.cbImage, + pDbgInfo->u.Pdb20.uTimestamp, + pDbgInfo->u.Pdb20.uAge, + rtDbgModExtDbgInfoOpenCallback, pArgs->pDbgMod, (void *)pDbgInfo); + break; + + case RTLDRDBGINFOTYPE_CODEVIEW_DBG: + rc = RTDbgCfgOpenDbg(pArgs->hDbgCfg, pszExtFile, + pDbgInfo->u.Dbg.cbImage, + pDbgInfo->u.Dbg.uTimestamp, + rtDbgModExtDbgInfoOpenCallback, pArgs->pDbgMod, (void *)pDbgInfo); + break; + + case RTLDRDBGINFOTYPE_DWARF_DWO: + rc = RTDbgCfgOpenDwo(pArgs->hDbgCfg, pszExtFile, + pDbgInfo->u.Dwo.uCrc32, + rtDbgModExtDbgInfoOpenCallback, pArgs->pDbgMod, (void *)pDbgInfo); + break; + + default: + Log(("rtDbgModOpenDebugInfoExternalToImageCallback: Don't know how to handle enmType=%d and pszFileExt=%s\n", + pDbgInfo->enmType, pszExtFile)); + return VERR_DBG_TODO; + } + if (RT_SUCCESS(rc)) + { + LogFlow(("RTDbgMod: Successfully opened external debug info '%s' for '%s'\n", + pArgs->pDbgMod->pszDbgFile, pArgs->pDbgMod->pszImgFile)); + return VINF_CALLBACK_RETURN; + } + Log(("rtDbgModOpenDebugInfoExternalToImageCallback: '%s' (enmType=%d) for '%s' -> %Rrc\n", + pszExtFile, pDbgInfo->enmType, pArgs->pDbgMod->pszImgFile, rc)); + return rc; +} + + +/** + * Opens debug info listed in the image that is stored in a separate file. + * + * @returns IPRT status code + * @param pDbgMod The debug module. + * @param hDbgCfg The debug config. Can be NIL. + */ +static int rtDbgModOpenDebugInfoExternalToImage(PRTDBGMODINT pDbgMod, RTDBGCFG hDbgCfg) +{ + Assert(!pDbgMod->pDbgVt); + + RTDBGMODOPENDIETI Args; + Args.pDbgMod = pDbgMod; + Args.hDbgCfg = hDbgCfg; + int rc = pDbgMod->pImgVt->pfnEnumDbgInfo(pDbgMod, rtDbgModOpenDebugInfoExternalToImageCallback, &Args); + if (RT_SUCCESS(rc) && pDbgMod->pDbgVt) + return VINF_SUCCESS; + + LogFlow(("rtDbgModOpenDebugInfoExternalToImage: rc=%Rrc\n", rc)); + return VERR_NOT_FOUND; +} + + +/** @callback_method_impl{FNRTDBGCFGOPEN} */ +static DECLCALLBACK(int) rtDbgModExtDbgInfoOpenCallback2(RTDBGCFG hDbgCfg, const char *pszFilename, void *pvUser1, void *pvUser2) +{ + PRTDBGMODINT pDbgMod = (PRTDBGMODINT)pvUser1; + RT_NOREF_PV(pvUser2); /** @todo image matching string or smth. */ + RT_NOREF_PV(hDbgCfg); + + Assert(!pDbgMod->pDbgVt); + Assert(!pDbgMod->pvDbgPriv); + Assert(!pDbgMod->pszDbgFile); + Assert(pDbgMod->pImgVt); + + /* + * Set the debug file name and try possible interpreters. + */ + pDbgMod->pszDbgFile = RTStrCacheEnter(g_hDbgModStrCache, pszFilename); + + int rc = RTSemRWRequestRead(g_hDbgModRWSem, RT_INDEFINITE_WAIT); + if (RT_SUCCESS(rc)) + { + for (PRTDBGMODREGDBG pDbg = g_pDbgHead; pDbg; pDbg = pDbg->pNext) + { + pDbgMod->pDbgVt = pDbg->pVt; + pDbgMod->pvDbgPriv = NULL; + rc = pDbg->pVt->pfnTryOpen(pDbgMod, pDbgMod->pImgVt->pfnGetArch(pDbgMod)); + if (RT_SUCCESS(rc)) + { + /* + * Got it! + */ + ASMAtomicIncU32(&pDbg->cUsers); + RTSemRWReleaseRead(g_hDbgModRWSem); + return VINF_CALLBACK_RETURN; + } + pDbgMod->pDbgVt = NULL; + Assert(pDbgMod->pvDbgPriv == NULL); + } + } + + /* No joy. */ + RTSemRWReleaseRead(g_hDbgModRWSem); + RTStrCacheRelease(g_hDbgModStrCache, pDbgMod->pszDbgFile); + pDbgMod->pszDbgFile = NULL; + return rc; +} + + +/** + * Opens external debug info that is not listed in the image. + * + * @returns IPRT status code + * @param pDbgMod The debug module. + * @param hDbgCfg The debug config. Can be NIL. + */ +static int rtDbgModOpenDebugInfoExternalToImage2(PRTDBGMODINT pDbgMod, RTDBGCFG hDbgCfg) +{ + int rc; + Assert(!pDbgMod->pDbgVt); + Assert(pDbgMod->pImgVt); + + /* + * Figure out what to search for based on the image format. + */ + const char *pszzExts = NULL; + RTLDRFMT enmFmt = pDbgMod->pImgVt->pfnGetFormat(pDbgMod); + switch (enmFmt) + { + case RTLDRFMT_MACHO: + { + RTUUID Uuid; + PRTUUID pUuid = &Uuid; + rc = pDbgMod->pImgVt->pfnQueryProp(pDbgMod, RTLDRPROP_UUID, &Uuid, sizeof(Uuid), NULL); + if (RT_FAILURE(rc)) + pUuid = NULL; + + rc = RTDbgCfgOpenDsymBundle(hDbgCfg, pDbgMod->pszImgFile, pUuid, + rtDbgModExtDbgInfoOpenCallback2, pDbgMod, NULL /*pvUser2*/); + if (RT_SUCCESS(rc)) + return VINF_SUCCESS; + break; + } + +#if 0 /* Will be links in the image if these apply. .map readers for PE or ELF we don't have. */ + case RTLDRFMT_ELF: + pszzExts = ".debug\0.dwo\0"; + break; + case RTLDRFMT_PE: + pszzExts = ".map\0"; + break; +#endif +#if 0 /* Haven't implemented .sym or .map file readers for OS/2 yet. */ + case RTLDRFMT_LX: + pszzExts = ".sym\0.map\0"; + break; +#endif + default: + rc = VERR_NOT_IMPLEMENTED; + break; + } + + NOREF(pszzExts); +#if 0 /* Later */ + if (pszzExts) + { + + } +#endif + + LogFlow(("rtDbgModOpenDebugInfoExternalToImage2: rc=%Rrc\n", rc)); + return VERR_NOT_FOUND; +} + + +RTDECL(int) RTDbgModCreateFromImage(PRTDBGMOD phDbgMod, const char *pszFilename, const char *pszName, + RTLDRARCH enmArch, RTDBGCFG hDbgCfg) +{ + /* + * Input validation and lazy initialization. + */ + AssertPtrReturn(phDbgMod, VERR_INVALID_POINTER); + *phDbgMod = NIL_RTDBGMOD; + AssertPtrReturn(pszFilename, VERR_INVALID_POINTER); + AssertReturn(*pszFilename, VERR_INVALID_PARAMETER); + AssertPtrNullReturn(pszName, VERR_INVALID_POINTER); + AssertReturn(enmArch > RTLDRARCH_INVALID && enmArch < RTLDRARCH_END, VERR_INVALID_PARAMETER); + + int rc = rtDbgModLazyInit(); + if (RT_FAILURE(rc)) + return rc; + + if (!pszName) + pszName = RTPathFilenameEx(pszFilename, RTPATH_STR_F_STYLE_DOS); + + /* + * Allocate a new module instance. + */ + PRTDBGMODINT pDbgMod = (PRTDBGMODINT)RTMemAllocZ(sizeof(*pDbgMod)); + if (!pDbgMod) + return VERR_NO_MEMORY; + pDbgMod->u32Magic = RTDBGMOD_MAGIC; + pDbgMod->cRefs = 1; + rc = RTCritSectInit(&pDbgMod->CritSect); + if (RT_SUCCESS(rc)) + { + pDbgMod->pszName = RTStrCacheEnterLower(g_hDbgModStrCache, pszName); + if (pDbgMod->pszName) + { + pDbgMod->pszImgFile = RTStrCacheEnter(g_hDbgModStrCache, pszFilename); + if (pDbgMod->pszImgFile) + { + RTStrCacheRetain(pDbgMod->pszImgFile); + pDbgMod->pszImgFileSpecified = pDbgMod->pszImgFile; + + /* + * Find an image reader which groks the file. + */ + rc = RTSemRWRequestRead(g_hDbgModRWSem, RT_INDEFINITE_WAIT); + if (RT_SUCCESS(rc)) + { + rc = VERR_DBG_NO_MATCHING_INTERPRETER; + PRTDBGMODREGIMG pImg; + for (pImg = g_pImgHead; pImg; pImg = pImg->pNext) + { + pDbgMod->pImgVt = pImg->pVt; + pDbgMod->pvImgPriv = NULL; + /** @todo need to specify some arch stuff here. */ + rc = pImg->pVt->pfnTryOpen(pDbgMod, enmArch); + if (RT_SUCCESS(rc)) + { + /* + * Image detected, but found no debug info we were + * able to understand. + */ + /** @todo some generic way of matching image and debug info, flexible signature + * of some kind. Apple uses UUIDs, microsoft uses a UUID+age or a + * size+timestamp, and GNU a CRC32 (last time I checked). */ + rc = rtDbgModOpenDebugInfoExternalToImage(pDbgMod, hDbgCfg); + if (RT_FAILURE(rc)) + rc = rtDbgModOpenDebugInfoInsideImage(pDbgMod); + if (RT_FAILURE(rc)) + rc = rtDbgModOpenDebugInfoExternalToImage2(pDbgMod, hDbgCfg); + if (RT_FAILURE(rc)) + rc = rtDbgModCreateForExports(pDbgMod); + if (RT_SUCCESS(rc)) + { + /* + * We're done! + */ + ASMAtomicIncU32(&pImg->cUsers); + RTSemRWReleaseRead(g_hDbgModRWSem); + + *phDbgMod = pDbgMod; + return VINF_SUCCESS; + } + + /* Failed, close up the shop. */ + pDbgMod->pImgVt->pfnClose(pDbgMod); + pDbgMod->pImgVt = NULL; + pDbgMod->pvImgPriv = NULL; + break; + } + } + + /* + * Could it be a file containing raw debug info? + */ + if (!pImg) + { + pDbgMod->pImgVt = NULL; + pDbgMod->pvImgPriv = NULL; + pDbgMod->pszDbgFile = pDbgMod->pszImgFile; + pDbgMod->pszImgFile = NULL; + + for (PRTDBGMODREGDBG pDbg = g_pDbgHead; pDbg; pDbg = pDbg->pNext) + { + pDbgMod->pDbgVt = pDbg->pVt; + pDbgMod->pvDbgPriv = NULL; + rc = pDbg->pVt->pfnTryOpen(pDbgMod, enmArch); + if (RT_SUCCESS(rc)) + { + /* + * That's it! + */ + ASMAtomicIncU32(&pDbg->cUsers); + RTSemRWReleaseRead(g_hDbgModRWSem); + + *phDbgMod = pDbgMod; + return rc; + } + } + + pDbgMod->pszImgFile = pDbgMod->pszDbgFile; + pDbgMod->pszDbgFile = NULL; + } + + /* bail out */ + RTSemRWReleaseRead(g_hDbgModRWSem); + } + RTStrCacheRelease(g_hDbgModStrCache, pDbgMod->pszImgFileSpecified); + RTStrCacheRelease(g_hDbgModStrCache, pDbgMod->pszImgFile); + } + else + rc = VERR_NO_STR_MEMORY; + RTStrCacheRelease(g_hDbgModStrCache, pDbgMod->pszName); + } + else + rc = VERR_NO_STR_MEMORY; + RTCritSectDelete(&pDbgMod->CritSect); + } + + RTMemFree(pDbgMod); + return rc; +} +RT_EXPORT_SYMBOL(RTDbgModCreateFromImage); + + + + + +/* + * + * P E I M A G E + * P E I M A G E + * P E I M A G E + * + */ + + + +/** @callback_method_impl{FNRTDBGCFGOPEN} */ +static DECLCALLBACK(int) rtDbgModFromPeImageOpenCallback(RTDBGCFG hDbgCfg, const char *pszFilename, void *pvUser1, void *pvUser2) +{ + PRTDBGMODINT pDbgMod = (PRTDBGMODINT)pvUser1; + PRTDBGMODDEFERRED pDeferred = (PRTDBGMODDEFERRED)pvUser2; + LogFlow(("rtDbgModFromPeImageOpenCallback: %s\n", pszFilename)); + RT_NOREF_PV(hDbgCfg); + + Assert(pDbgMod->pImgVt == NULL); + Assert(pDbgMod->pvImgPriv == NULL); + Assert(pDbgMod->pDbgVt == NULL); + Assert(pDbgMod->pvDbgPriv == NULL); + + /* + * Replace the image file name while probing it. + */ + const char *pszNewImgFile = RTStrCacheEnter(g_hDbgModStrCache, pszFilename); + if (!pszNewImgFile) + return VERR_NO_STR_MEMORY; + const char *pszOldImgFile = pDbgMod->pszImgFile; + pDbgMod->pszImgFile = pszNewImgFile; + + /* + * Find an image reader which groks the file. + */ + int rc = RTSemRWRequestRead(g_hDbgModRWSem, RT_INDEFINITE_WAIT); + if (RT_SUCCESS(rc)) + { + rc = VERR_DBG_NO_MATCHING_INTERPRETER; + PRTDBGMODREGIMG pImg; + for (pImg = g_pImgHead; pImg; pImg = pImg->pNext) + { + pDbgMod->pImgVt = pImg->pVt; + pDbgMod->pvImgPriv = NULL; + rc = pImg->pVt->pfnTryOpen(pDbgMod, RTLDRARCH_WHATEVER); + if (RT_SUCCESS(rc)) + break; + pDbgMod->pImgVt = NULL; + Assert(pDbgMod->pvImgPriv == NULL); + } + RTSemRWReleaseRead(g_hDbgModRWSem); + if (RT_SUCCESS(rc)) + { + /* + * Check the deferred info. + */ + RTUINTPTR cbImage = pDbgMod->pImgVt->pfnImageSize(pDbgMod); + if ( pDeferred->cbImage == 0 + || pDeferred->cbImage == cbImage) + { + uint32_t uTimestamp = pDeferred->u.PeImage.uTimestamp; /** @todo add method for getting the timestamp. */ + if ( pDeferred->u.PeImage.uTimestamp == 0 + || pDeferred->u.PeImage.uTimestamp == uTimestamp) + { + Log(("RTDbgMod: Found matching PE image '%s'\n", pszFilename)); + + /* + * We found the executable image we need, now go find any + * debug info associated with it. For PE images, this is + * generally found in an external file, so we do a sweep + * for that first. + * + * Then try open debug inside the module, and finally + * falling back on exports. + */ + rc = rtDbgModOpenDebugInfoExternalToImage(pDbgMod, pDeferred->hDbgCfg); + if (RT_FAILURE(rc)) + rc = rtDbgModOpenDebugInfoInsideImage(pDbgMod); + if (RT_FAILURE(rc)) + rc = rtDbgModCreateForExports(pDbgMod); + if (RT_SUCCESS(rc)) + { + RTStrCacheRelease(g_hDbgModStrCache, pszOldImgFile); + return VINF_CALLBACK_RETURN; + } + + /* Something bad happened, just give up. */ + Log(("rtDbgModFromPeImageOpenCallback: rtDbgModCreateForExports failed: %Rrc\n", rc)); + } + else + { + LogFlow(("rtDbgModFromPeImageOpenCallback: uTimestamp mismatch (found %#x, expected %#x) - %s\n", + uTimestamp, pDeferred->u.PeImage.uTimestamp, pszFilename)); + rc = VERR_DBG_FILE_MISMATCH; + } + } + else + { + LogFlow(("rtDbgModFromPeImageOpenCallback: cbImage mismatch (found %#x, expected %#x) - %s\n", + cbImage, pDeferred->cbImage, pszFilename)); + rc = VERR_DBG_FILE_MISMATCH; + } + + pDbgMod->pImgVt->pfnClose(pDbgMod); + pDbgMod->pImgVt = NULL; + pDbgMod->pvImgPriv = NULL; + } + else + LogFlow(("rtDbgModFromPeImageOpenCallback: Failed %Rrc - %s\n", rc, pszFilename)); + } + + /* Restore image name. */ + pDbgMod->pszImgFile = pszOldImgFile; + RTStrCacheRelease(g_hDbgModStrCache, pszNewImgFile); + return rc; +} + + +/** @callback_method_impl{FNRTDBGMODDEFERRED} */ +static DECLCALLBACK(int) rtDbgModFromPeImageDeferredCallback(PRTDBGMODINT pDbgMod, PRTDBGMODDEFERRED pDeferred) +{ + int rc; + + Assert(pDbgMod->pszImgFile); + if (!pDbgMod->pImgVt) + rc = RTDbgCfgOpenPeImage(pDeferred->hDbgCfg, pDbgMod->pszImgFile, + pDeferred->cbImage, pDeferred->u.PeImage.uTimestamp, + rtDbgModFromPeImageOpenCallback, pDbgMod, pDeferred); + else + { + rc = rtDbgModOpenDebugInfoExternalToImage(pDbgMod, pDeferred->hDbgCfg); + if (RT_FAILURE(rc)) + rc = rtDbgModOpenDebugInfoInsideImage(pDbgMod); + if (RT_FAILURE(rc)) + rc = rtDbgModCreateForExports(pDbgMod); + } + return rc; +} + + +RTDECL(int) RTDbgModCreateFromPeImage(PRTDBGMOD phDbgMod, const char *pszFilename, const char *pszName, + PRTLDRMOD phLdrMod, uint32_t cbImage, uint32_t uTimestamp, RTDBGCFG hDbgCfg) +{ + /* + * Input validation and lazy initialization. + */ + AssertPtrReturn(phDbgMod, VERR_INVALID_POINTER); + *phDbgMod = NIL_RTDBGMOD; + AssertPtrReturn(pszFilename, VERR_INVALID_POINTER); + AssertReturn(*pszFilename, VERR_INVALID_PARAMETER); + if (!pszName) + pszName = RTPathFilenameEx(pszFilename, RTPATH_STR_F_STYLE_DOS); + AssertPtrReturn(pszName, VERR_INVALID_POINTER); + AssertPtrNullReturn(phLdrMod, VERR_INVALID_POINTER); + RTLDRMOD hLdrMod = phLdrMod ? *phLdrMod : NIL_RTLDRMOD; + AssertReturn(hLdrMod == NIL_RTLDRMOD || RTLdrSize(hLdrMod) != ~(size_t)0, VERR_INVALID_HANDLE); + + int rc = rtDbgModLazyInit(); + if (RT_FAILURE(rc)) + return rc; + + uint64_t fDbgCfg = 0; + if (hDbgCfg) + { + rc = RTDbgCfgQueryUInt(hDbgCfg, RTDBGCFGPROP_FLAGS, &fDbgCfg); + AssertRCReturn(rc, rc); + } + + /* + * Allocate a new module instance. + */ + PRTDBGMODINT pDbgMod = (PRTDBGMODINT)RTMemAllocZ(sizeof(*pDbgMod)); + if (!pDbgMod) + return VERR_NO_MEMORY; + pDbgMod->u32Magic = RTDBGMOD_MAGIC; + pDbgMod->cRefs = 1; + rc = RTCritSectInit(&pDbgMod->CritSect); + if (RT_SUCCESS(rc)) + { + pDbgMod->pszName = RTStrCacheEnterLower(g_hDbgModStrCache, pszName); + if (pDbgMod->pszName) + { + pDbgMod->pszImgFile = RTStrCacheEnter(g_hDbgModStrCache, pszFilename); + if (pDbgMod->pszImgFile) + { + RTStrCacheRetain(pDbgMod->pszImgFile); + pDbgMod->pszImgFileSpecified = pDbgMod->pszImgFile; + + /* + * If we have a loader module, we must instantiate the loader + * side of things regardless of the deferred setting. + */ + if (hLdrMod != NIL_RTLDRMOD) + { + if (!cbImage) + cbImage = (uint32_t)RTLdrSize(hLdrMod); + pDbgMod->pImgVt = &g_rtDbgModVtImgLdr; + + rc = rtDbgModLdrOpenFromHandle(pDbgMod, hLdrMod); + } + if (RT_SUCCESS(rc)) + { + /* We now own the loader handle, so clear the caller variable. */ + if (phLdrMod) + *phLdrMod = NIL_RTLDRMOD; + + /* + * Do it now or procrastinate? + */ + if (!(fDbgCfg & RTDBGCFG_FLAGS_DEFERRED) || !cbImage) + { + RTDBGMODDEFERRED Deferred; + Deferred.cbImage = cbImage; + Deferred.hDbgCfg = hDbgCfg; + Deferred.u.PeImage.uTimestamp = uTimestamp; + rc = rtDbgModFromPeImageDeferredCallback(pDbgMod, &Deferred); + } + else + { + PRTDBGMODDEFERRED pDeferred; + rc = rtDbgModDeferredCreate(pDbgMod, rtDbgModFromPeImageDeferredCallback, cbImage, hDbgCfg, 0, + &pDeferred); + if (RT_SUCCESS(rc)) + pDeferred->u.PeImage.uTimestamp = uTimestamp; + } + if (RT_SUCCESS(rc)) + { + *phDbgMod = pDbgMod; + return VINF_SUCCESS; + } + + /* Failed, bail out. */ + if (hLdrMod != NIL_RTLDRMOD) + { + Assert(pDbgMod->pImgVt); + pDbgMod->pImgVt->pfnClose(pDbgMod); + } + } + RTStrCacheRelease(g_hDbgModStrCache, pDbgMod->pszName); + } + else + rc = VERR_NO_STR_MEMORY; + RTStrCacheRelease(g_hDbgModStrCache, pDbgMod->pszImgFileSpecified); + RTStrCacheRelease(g_hDbgModStrCache, pDbgMod->pszImgFile); + } + else + rc = VERR_NO_STR_MEMORY; + RTCritSectDelete(&pDbgMod->CritSect); + } + + RTMemFree(pDbgMod); + return rc; +} +RT_EXPORT_SYMBOL(RTDbgModCreateFromPeImage); + + + + +/* + * + * M a c h - O I M A G E + * M a c h - O I M A G E + * M a c h - O I M A G E + * + */ + + +/** + * Argument package used when opening Mach-O images and .dSYMs files. + */ +typedef struct RTDBGMODMACHOARGS +{ + /** For use more internal use in file locator callbacks. */ + RTLDRARCH enmArch; + /** For use more internal use in file locator callbacks. */ + PCRTUUID pUuid; + /** For use more internal use in file locator callbacks. */ + bool fOpenImage; +} RTDBGMODMACHOARGS; +/** Pointer to a const segment package. */ +typedef RTDBGMODMACHOARGS const *PCRTDBGMODMACHOARGS; + + + +/** @callback_method_impl{FNRTDBGCFGOPEN} */ +static DECLCALLBACK(int) +rtDbgModFromMachOImageOpenDsymMachOCallback(RTDBGCFG hDbgCfg, const char *pszFilename, void *pvUser1, void *pvUser2) +{ + PRTDBGMODINT pDbgMod = (PRTDBGMODINT)pvUser1; + PCRTDBGMODMACHOARGS pArgs = (PCRTDBGMODMACHOARGS)pvUser2; + RT_NOREF_PV(hDbgCfg); + + Assert(!pDbgMod->pDbgVt); + Assert(!pDbgMod->pvDbgPriv); + Assert(!pDbgMod->pszDbgFile); + Assert(!pDbgMod->pImgVt); + Assert(!pDbgMod->pvDbgPriv); + Assert(pDbgMod->pszImgFile); + Assert(pDbgMod->pszImgFileSpecified); + + const char *pszImgFileOrg = pDbgMod->pszImgFile; + pDbgMod->pszImgFile = RTStrCacheEnter(g_hDbgModStrCache, pszFilename); + if (!pDbgMod->pszImgFile) + return VERR_NO_STR_MEMORY; + RTStrCacheRetain(pDbgMod->pszImgFile); + pDbgMod->pszDbgFile = pDbgMod->pszImgFile; + + /* + * Try image interpreters as the dwarf file inside the dSYM bundle is a + * Mach-O file with dwarf debug sections insides it and no code or data. + */ + int rc = RTSemRWRequestRead(g_hDbgModRWSem, RT_INDEFINITE_WAIT); + if (RT_SUCCESS(rc)) + { + rc = VERR_DBG_NO_MATCHING_INTERPRETER; + PRTDBGMODREGIMG pImg; + for (pImg = g_pImgHead; pImg; pImg = pImg->pNext) + { + pDbgMod->pImgVt = pImg->pVt; + pDbgMod->pvImgPriv = NULL; + rc = pImg->pVt->pfnTryOpen(pDbgMod, pArgs->enmArch); + if (RT_SUCCESS(rc)) + break; + pDbgMod->pImgVt = NULL; + Assert(pDbgMod->pvImgPriv == NULL); + } + + if (RT_SUCCESS(rc)) + { + /* + * Check the UUID if one was given. + */ + if (pArgs->pUuid) + { + RTUUID UuidOpened; + rc = pDbgMod->pImgVt->pfnQueryProp(pDbgMod, RTLDRPROP_UUID, &UuidOpened, sizeof(UuidOpened), NULL); + if (RT_SUCCESS(rc)) + { + if (RTUuidCompare(&UuidOpened, pArgs->pUuid) != 0) + rc = VERR_DBG_FILE_MISMATCH; + } + else if (rc == VERR_NOT_FOUND || rc == VERR_NOT_IMPLEMENTED) + rc = VERR_DBG_FILE_MISMATCH; + } + if (RT_SUCCESS(rc)) + { + /* + * Pass it to the DWARF reader(s). Careful to restrict this or + * the dbghelp wrapper may end up being overly helpful. + */ + for (PRTDBGMODREGDBG pDbg = g_pDbgHead; pDbg; pDbg = pDbg->pNext) + { + if (pDbg->pVt->fSupports & (RT_DBGTYPE_DWARF | RT_DBGTYPE_STABS | RT_DBGTYPE_WATCOM)) + + { + pDbgMod->pDbgVt = pDbg->pVt; + pDbgMod->pvDbgPriv = NULL; + rc = pDbg->pVt->pfnTryOpen(pDbgMod, pDbgMod->pImgVt->pfnGetArch(pDbgMod)); + if (RT_SUCCESS(rc)) + { + /* + * Got it! + */ + ASMAtomicIncU32(&pDbg->cUsers); + RTSemRWReleaseRead(g_hDbgModRWSem); + RTStrCacheRelease(g_hDbgModStrCache, pszImgFileOrg); + return VINF_CALLBACK_RETURN; + } + pDbgMod->pDbgVt = NULL; + Assert(pDbgMod->pvDbgPriv == NULL); + } + } + + /* + * Likely fallback for when opening image. + */ + if (pArgs->fOpenImage) + { + rc = rtDbgModCreateForExports(pDbgMod); + if (RT_SUCCESS(rc)) + { + /* + * Done. + */ + RTSemRWReleaseRead(g_hDbgModRWSem); + RTStrCacheRelease(g_hDbgModStrCache, pszImgFileOrg); + return VINF_CALLBACK_RETURN; + } + } + } + + pDbgMod->pImgVt->pfnClose(pDbgMod); + pDbgMod->pImgVt = NULL; + pDbgMod->pvImgPriv = NULL; + } + } + + /* No joy. */ + RTSemRWReleaseRead(g_hDbgModRWSem); + RTStrCacheRelease(g_hDbgModStrCache, pDbgMod->pszImgFile); + pDbgMod->pszImgFile = pszImgFileOrg; + RTStrCacheRelease(g_hDbgModStrCache, pDbgMod->pszDbgFile); + pDbgMod->pszDbgFile = NULL; + return rc; +} + + +static int rtDbgModFromMachOImageWorker(PRTDBGMODINT pDbgMod, RTLDRARCH enmArch, uint32_t cbImage, + uint32_t cSegs, PCRTDBGSEGMENT paSegs, PCRTUUID pUuid, RTDBGCFG hDbgCfg) +{ + RT_NOREF_PV(cbImage); RT_NOREF_PV(cSegs); RT_NOREF_PV(paSegs); + + RTDBGMODMACHOARGS Args; + Args.enmArch = enmArch; + Args.pUuid = pUuid && RTUuidIsNull(pUuid) ? pUuid : NULL; + Args.fOpenImage = false; + + /* + * Search for the .dSYM bundle first, since that's generally all we need. + */ + int rc = RTDbgCfgOpenDsymBundle(hDbgCfg, pDbgMod->pszImgFile, pUuid, + rtDbgModFromMachOImageOpenDsymMachOCallback, pDbgMod, &Args); + if (RT_FAILURE(rc)) + { + /* + * If we cannot get at the .dSYM, try the executable image. + */ + Args.fOpenImage = true; + rc = RTDbgCfgOpenMachOImage(hDbgCfg, pDbgMod->pszImgFile, pUuid, + rtDbgModFromMachOImageOpenDsymMachOCallback, pDbgMod, &Args); + } + return rc; +} + + +/** @callback_method_impl{FNRTDBGMODDEFERRED} */ +static DECLCALLBACK(int) rtDbgModFromMachOImageDeferredCallback(PRTDBGMODINT pDbgMod, PRTDBGMODDEFERRED pDeferred) +{ + return rtDbgModFromMachOImageWorker(pDbgMod, pDeferred->u.MachO.enmArch, pDeferred->cbImage, + pDeferred->u.MachO.cSegs, pDeferred->u.MachO.aSegs, + &pDeferred->u.MachO.Uuid, pDeferred->hDbgCfg); +} + + +RTDECL(int) RTDbgModCreateFromMachOImage(PRTDBGMOD phDbgMod, const char *pszFilename, const char *pszName, + RTLDRARCH enmArch, uint32_t cbImage, uint32_t cSegs, PCRTDBGSEGMENT paSegs, + PCRTUUID pUuid, RTDBGCFG hDbgCfg, uint32_t fFlags) +{ + /* + * Input validation and lazy initialization. + */ + AssertPtrReturn(phDbgMod, VERR_INVALID_POINTER); + *phDbgMod = NIL_RTDBGMOD; + AssertPtrReturn(pszFilename, VERR_INVALID_POINTER); + AssertReturn(*pszFilename, VERR_INVALID_PARAMETER); + if (!pszName) + pszName = RTPathFilenameEx(pszFilename, RTPATH_STR_F_STYLE_HOST); + AssertPtrReturn(pszName, VERR_INVALID_POINTER); + if (cSegs) + { + AssertReturn(cSegs < 1024, VERR_INVALID_PARAMETER); + AssertPtrReturn(paSegs, VERR_INVALID_POINTER); + AssertReturn(!cbImage, VERR_INVALID_PARAMETER); + } + AssertReturn(cbImage || cSegs, VERR_INVALID_PARAMETER); + AssertPtrNullReturn(pUuid, VERR_INVALID_POINTER); + AssertReturn(!(fFlags & ~(RTDBGMOD_F_NOT_DEFERRED)), VERR_INVALID_PARAMETER); + + int rc = rtDbgModLazyInit(); + if (RT_FAILURE(rc)) + return rc; + + uint64_t fDbgCfg = 0; + if (hDbgCfg) + { + rc = RTDbgCfgQueryUInt(hDbgCfg, RTDBGCFGPROP_FLAGS, &fDbgCfg); + AssertRCReturn(rc, rc); + } + + /* + * Allocate a new module instance. + */ + PRTDBGMODINT pDbgMod = (PRTDBGMODINT)RTMemAllocZ(sizeof(*pDbgMod)); + if (!pDbgMod) + return VERR_NO_MEMORY; + pDbgMod->u32Magic = RTDBGMOD_MAGIC; + pDbgMod->cRefs = 1; + rc = RTCritSectInit(&pDbgMod->CritSect); + if (RT_SUCCESS(rc)) + { + pDbgMod->pszName = RTStrCacheEnterLower(g_hDbgModStrCache, pszName); + if (pDbgMod->pszName) + { + pDbgMod->pszImgFile = RTStrCacheEnter(g_hDbgModStrCache, pszFilename); + if (pDbgMod->pszImgFile) + { + RTStrCacheRetain(pDbgMod->pszImgFile); + pDbgMod->pszImgFileSpecified = pDbgMod->pszImgFile; + + /* + * Load it immediately? + */ + if ( !(fDbgCfg & RTDBGCFG_FLAGS_DEFERRED) + || cSegs /* for the time being. */ + || (!cbImage && !cSegs) + || (fFlags & RTDBGMOD_F_NOT_DEFERRED) ) + rc = rtDbgModFromMachOImageWorker(pDbgMod, enmArch, cbImage, cSegs, paSegs, pUuid, hDbgCfg); + else + { + /* + * Procrastinate. Need image size atm. + */ + PRTDBGMODDEFERRED pDeferred; + rc = rtDbgModDeferredCreate(pDbgMod, rtDbgModFromMachOImageDeferredCallback, cbImage, hDbgCfg, + RT_UOFFSETOF_DYN(RTDBGMODDEFERRED, u.MachO.aSegs[cSegs]), + &pDeferred); + if (RT_SUCCESS(rc)) + { + pDeferred->u.MachO.Uuid = *pUuid; + pDeferred->u.MachO.enmArch = enmArch; + pDeferred->u.MachO.cSegs = cSegs; + if (cSegs) + memcpy(&pDeferred->u.MachO.aSegs, paSegs, cSegs * sizeof(paSegs[0])); + } + } + if (RT_SUCCESS(rc)) + { + *phDbgMod = pDbgMod; + return VINF_SUCCESS; + } + + /* Failed, bail out. */ + RTStrCacheRelease(g_hDbgModStrCache, pDbgMod->pszName); + } + else + rc = VERR_NO_STR_MEMORY; + RTStrCacheRelease(g_hDbgModStrCache, pDbgMod->pszImgFileSpecified); + RTStrCacheRelease(g_hDbgModStrCache, pDbgMod->pszImgFile); + } + else + rc = VERR_NO_STR_MEMORY; + RTCritSectDelete(&pDbgMod->CritSect); + } + + RTMemFree(pDbgMod); + return rc; +} + + + +RT_EXPORT_SYMBOL(RTDbgModCreateFromMachOImage); + + + +/** + * Destroys an module after the reference count has reached zero. + * + * @param pDbgMod The module instance. + */ +static void rtDbgModDestroy(PRTDBGMODINT pDbgMod) +{ + /* + * Close the debug info interpreter first, then the image interpret. + */ + RTCritSectEnter(&pDbgMod->CritSect); /* paranoia */ + + if (pDbgMod->pDbgVt) + { + pDbgMod->pDbgVt->pfnClose(pDbgMod); + pDbgMod->pDbgVt = NULL; + pDbgMod->pvDbgPriv = NULL; + } + + if (pDbgMod->pImgVt) + { + pDbgMod->pImgVt->pfnClose(pDbgMod); + pDbgMod->pImgVt = NULL; + pDbgMod->pvImgPriv = NULL; + } + + /* + * Free the resources. + */ + ASMAtomicWriteU32(&pDbgMod->u32Magic, ~RTDBGMOD_MAGIC); + RTStrCacheRelease(g_hDbgModStrCache, pDbgMod->pszName); + RTStrCacheRelease(g_hDbgModStrCache, pDbgMod->pszImgFile); + RTStrCacheRelease(g_hDbgModStrCache, pDbgMod->pszImgFileSpecified); + RTStrCacheRelease(g_hDbgModStrCache, pDbgMod->pszDbgFile); + RTCritSectLeave(&pDbgMod->CritSect); /* paranoia */ + RTCritSectDelete(&pDbgMod->CritSect); + RTMemFree(pDbgMod); +} + + +RTDECL(uint32_t) RTDbgModRetain(RTDBGMOD hDbgMod) +{ + PRTDBGMODINT pDbgMod = hDbgMod; + RTDBGMOD_VALID_RETURN_RC(pDbgMod, UINT32_MAX); + return ASMAtomicIncU32(&pDbgMod->cRefs); +} +RT_EXPORT_SYMBOL(RTDbgModRetain); + + +RTDECL(uint32_t) RTDbgModRelease(RTDBGMOD hDbgMod) +{ + if (hDbgMod == NIL_RTDBGMOD) + return 0; + PRTDBGMODINT pDbgMod = hDbgMod; + RTDBGMOD_VALID_RETURN_RC(pDbgMod, UINT32_MAX); + + uint32_t cRefs = ASMAtomicDecU32(&pDbgMod->cRefs); + if (!cRefs) + rtDbgModDestroy(pDbgMod); + return cRefs; +} +RT_EXPORT_SYMBOL(RTDbgModRelease); + + +RTDECL(const char *) RTDbgModName(RTDBGMOD hDbgMod) +{ + PRTDBGMODINT pDbgMod = hDbgMod; + RTDBGMOD_VALID_RETURN_RC(pDbgMod, NULL); + return pDbgMod->pszName; +} +RT_EXPORT_SYMBOL(RTDbgModName); + + +RTDECL(const char *) RTDbgModDebugFile(RTDBGMOD hDbgMod) +{ + PRTDBGMODINT pDbgMod = hDbgMod; + RTDBGMOD_VALID_RETURN_RC(pDbgMod, NULL); + if (pDbgMod->fDeferred || pDbgMod->fExports) + return NULL; + return pDbgMod->pszDbgFile; +} +RT_EXPORT_SYMBOL(RTDbgModDebugFile); + + +RTDECL(const char *) RTDbgModImageFile(RTDBGMOD hDbgMod) +{ + PRTDBGMODINT pDbgMod = hDbgMod; + RTDBGMOD_VALID_RETURN_RC(pDbgMod, NULL); + return pDbgMod->pszImgFileSpecified; +} +RT_EXPORT_SYMBOL(RTDbgModImageFile); + + +RTDECL(const char *) RTDbgModImageFileUsed(RTDBGMOD hDbgMod) +{ + PRTDBGMODINT pDbgMod = hDbgMod; + RTDBGMOD_VALID_RETURN_RC(pDbgMod, NULL); + return pDbgMod->pszImgFile == pDbgMod->pszImgFileSpecified ? NULL : pDbgMod->pszImgFile; +} +RT_EXPORT_SYMBOL(RTDbgModImageFileUsed); + + +RTDECL(bool) RTDbgModIsDeferred(RTDBGMOD hDbgMod) +{ + PRTDBGMODINT pDbgMod = hDbgMod; + RTDBGMOD_VALID_RETURN_RC(pDbgMod, false); + return pDbgMod->fDeferred; +} + + +RTDECL(bool) RTDbgModIsExports(RTDBGMOD hDbgMod) +{ + PRTDBGMODINT pDbgMod = hDbgMod; + RTDBGMOD_VALID_RETURN_RC(pDbgMod, false); + return pDbgMod->fExports; +} + + +RTDECL(int) RTDbgModRemoveAll(RTDBGMOD hDbgMod, bool fLeaveSegments) +{ + PRTDBGMODINT pDbgMod = hDbgMod; + RTDBGMOD_VALID_RETURN_RC(pDbgMod, VERR_INVALID_HANDLE); + + RTDBGMOD_LOCK(pDbgMod); + + /* Only possible on container modules. */ + int rc = VINF_SUCCESS; + if (pDbgMod->pDbgVt != &g_rtDbgModVtDbgContainer) + { + if (fLeaveSegments) + { + rc = rtDbgModContainer_LineRemoveAll(pDbgMod); + if (RT_SUCCESS(rc)) + rc = rtDbgModContainer_SymbolRemoveAll(pDbgMod); + } + else + rc = rtDbgModContainer_RemoveAll(pDbgMod); + } + else + rc = VERR_ACCESS_DENIED; + + RTDBGMOD_UNLOCK(pDbgMod); + return rc; +} + + +RTDECL(RTDBGSEGIDX) RTDbgModRvaToSegOff(RTDBGMOD hDbgMod, RTUINTPTR uRva, PRTUINTPTR poffSeg) +{ + PRTDBGMODINT pDbgMod = hDbgMod; + RTDBGMOD_VALID_RETURN_RC(pDbgMod, NIL_RTDBGSEGIDX); + RTDBGMOD_LOCK(pDbgMod); + + RTDBGSEGIDX iSeg = pDbgMod->pDbgVt->pfnRvaToSegOff(pDbgMod, uRva, poffSeg); + + RTDBGMOD_UNLOCK(pDbgMod); + return iSeg; +} +RT_EXPORT_SYMBOL(RTDbgModRvaToSegOff); + + +RTDECL(uint64_t) RTDbgModGetTag(RTDBGMOD hDbgMod) +{ + PRTDBGMODINT pDbgMod = hDbgMod; + RTDBGMOD_VALID_RETURN_RC(pDbgMod, 0); + return pDbgMod->uTag; +} +RT_EXPORT_SYMBOL(RTDbgModGetTag); + + +RTDECL(int) RTDbgModSetTag(RTDBGMOD hDbgMod, uint64_t uTag) +{ + PRTDBGMODINT pDbgMod = hDbgMod; + RTDBGMOD_VALID_RETURN_RC(pDbgMod, VERR_INVALID_HANDLE); + RTDBGMOD_LOCK(pDbgMod); + + pDbgMod->uTag = uTag; + + RTDBGMOD_UNLOCK(pDbgMod); + return VINF_SUCCESS; +} +RT_EXPORT_SYMBOL(RTDbgModSetTag); + + +RTDECL(RTUINTPTR) RTDbgModImageSize(RTDBGMOD hDbgMod) +{ + PRTDBGMODINT pDbgMod = hDbgMod; + RTDBGMOD_VALID_RETURN_RC(pDbgMod, RTUINTPTR_MAX); + RTDBGMOD_LOCK(pDbgMod); + + RTUINTPTR cbImage = pDbgMod->pDbgVt->pfnImageSize(pDbgMod); + + RTDBGMOD_UNLOCK(pDbgMod); + return cbImage; +} +RT_EXPORT_SYMBOL(RTDbgModImageSize); + + +RTDECL(RTLDRFMT) RTDbgModImageGetFormat(RTDBGMOD hDbgMod) +{ + PRTDBGMODINT pDbgMod = hDbgMod; + RTDBGMOD_VALID_RETURN_RC(pDbgMod, RTLDRFMT_INVALID); + RTDBGMOD_LOCK(pDbgMod); + + RTLDRFMT enmFmt; + if ( pDbgMod->pImgVt + && pDbgMod->pImgVt->pfnGetFormat) + enmFmt = pDbgMod->pImgVt->pfnGetFormat(pDbgMod); + else + enmFmt = RTLDRFMT_INVALID; + + RTDBGMOD_UNLOCK(pDbgMod); + return enmFmt; +} +RT_EXPORT_SYMBOL(RTDbgModImageGetFormat); + + +RTDECL(RTLDRARCH) RTDbgModImageGetArch(RTDBGMOD hDbgMod) +{ + PRTDBGMODINT pDbgMod = hDbgMod; + RTDBGMOD_VALID_RETURN_RC(pDbgMod, RTLDRARCH_INVALID); + RTDBGMOD_LOCK(pDbgMod); + + RTLDRARCH enmArch; + if ( pDbgMod->pImgVt + && pDbgMod->pImgVt->pfnGetArch) + enmArch = pDbgMod->pImgVt->pfnGetArch(pDbgMod); + else + enmArch = RTLDRARCH_WHATEVER; + + RTDBGMOD_UNLOCK(pDbgMod); + return enmArch; +} +RT_EXPORT_SYMBOL(RTDbgModImageGetArch); + + +RTDECL(int) RTDbgModImageQueryProp(RTDBGMOD hDbgMod, RTLDRPROP enmProp, void *pvBuf, size_t cbBuf, size_t *pcbRet) +{ + PRTDBGMODINT pDbgMod = hDbgMod; + RTDBGMOD_VALID_RETURN_RC(pDbgMod, VERR_INVALID_HANDLE); + AssertPtrNullReturn(pcbRet, VERR_INVALID_POINTER); + RTDBGMOD_LOCK(pDbgMod); + + int rc; + if ( pDbgMod->pImgVt + && pDbgMod->pImgVt->pfnQueryProp) + rc = pDbgMod->pImgVt->pfnQueryProp(pDbgMod, enmProp, pvBuf, cbBuf, pcbRet); + else + rc = VERR_NOT_FOUND; + + RTDBGMOD_UNLOCK(pDbgMod); + return rc; +} +RT_EXPORT_SYMBOL(RTDbgModImageQueryProp); + + +RTDECL(int) RTDbgModSegmentAdd(RTDBGMOD hDbgMod, RTUINTPTR uRva, RTUINTPTR cb, const char *pszName, + uint32_t fFlags, PRTDBGSEGIDX piSeg) +{ + /* + * Validate input. + */ + PRTDBGMODINT pDbgMod = hDbgMod; + RTDBGMOD_VALID_RETURN_RC(pDbgMod, VERR_INVALID_HANDLE); + AssertMsgReturn(uRva + cb >= uRva, ("uRva=%RTptr cb=%RTptr\n", uRva, cb), VERR_DBG_ADDRESS_WRAP); + Assert(*pszName); + size_t cchName = strlen(pszName); + AssertReturn(cchName > 0, VERR_DBG_SEGMENT_NAME_OUT_OF_RANGE); + AssertReturn(cchName < RTDBG_SEGMENT_NAME_LENGTH, VERR_DBG_SEGMENT_NAME_OUT_OF_RANGE); + AssertMsgReturn(!fFlags, ("%#x\n", fFlags), VERR_INVALID_PARAMETER); + AssertPtrNull(piSeg); + AssertMsgReturn(!piSeg || *piSeg == NIL_RTDBGSEGIDX || *piSeg <= RTDBGSEGIDX_LAST, ("%#x\n", *piSeg), VERR_DBG_SPECIAL_SEGMENT); + + /* + * Do the deed. + */ + RTDBGMOD_LOCK(pDbgMod); + int rc = pDbgMod->pDbgVt->pfnSegmentAdd(pDbgMod, uRva, cb, pszName, cchName, fFlags, piSeg); + RTDBGMOD_UNLOCK(pDbgMod); + + return rc; + +} +RT_EXPORT_SYMBOL(RTDbgModSegmentAdd); + + +RTDECL(RTDBGSEGIDX) RTDbgModSegmentCount(RTDBGMOD hDbgMod) +{ + PRTDBGMODINT pDbgMod = hDbgMod; + RTDBGMOD_VALID_RETURN_RC(pDbgMod, NIL_RTDBGSEGIDX); + RTDBGMOD_LOCK(pDbgMod); + + RTDBGSEGIDX cSegs = pDbgMod->pDbgVt->pfnSegmentCount(pDbgMod); + + RTDBGMOD_UNLOCK(pDbgMod); + return cSegs; +} +RT_EXPORT_SYMBOL(RTDbgModSegmentCount); + + +RTDECL(int) RTDbgModSegmentByIndex(RTDBGMOD hDbgMod, RTDBGSEGIDX iSeg, PRTDBGSEGMENT pSegInfo) +{ + AssertMsgReturn(iSeg <= RTDBGSEGIDX_LAST, ("%#x\n", iSeg), VERR_DBG_SPECIAL_SEGMENT); + PRTDBGMODINT pDbgMod = hDbgMod; + RTDBGMOD_VALID_RETURN_RC(pDbgMod, VERR_INVALID_HANDLE); + RTDBGMOD_LOCK(pDbgMod); + + int rc = pDbgMod->pDbgVt->pfnSegmentByIndex(pDbgMod, iSeg, pSegInfo); + + RTDBGMOD_UNLOCK(pDbgMod); + return rc; +} +RT_EXPORT_SYMBOL(RTDbgModSegmentByIndex); + + +RTDECL(RTUINTPTR) RTDbgModSegmentSize(RTDBGMOD hDbgMod, RTDBGSEGIDX iSeg) +{ + if (iSeg == RTDBGSEGIDX_RVA) + return RTDbgModImageSize(hDbgMod); + RTDBGSEGMENT SegInfo; + int rc = RTDbgModSegmentByIndex(hDbgMod, iSeg, &SegInfo); + return RT_SUCCESS(rc) ? SegInfo.cb : RTUINTPTR_MAX; +} +RT_EXPORT_SYMBOL(RTDbgModSegmentSize); + + +RTDECL(RTUINTPTR) RTDbgModSegmentRva(RTDBGMOD hDbgMod, RTDBGSEGIDX iSeg) +{ + RTDBGSEGMENT SegInfo; + int rc = RTDbgModSegmentByIndex(hDbgMod, iSeg, &SegInfo); + return RT_SUCCESS(rc) ? SegInfo.uRva : RTUINTPTR_MAX; +} +RT_EXPORT_SYMBOL(RTDbgModSegmentRva); + + +RTDECL(int) RTDbgModSymbolAdd(RTDBGMOD hDbgMod, const char *pszSymbol, RTDBGSEGIDX iSeg, RTUINTPTR off, + RTUINTPTR cb, uint32_t fFlags, uint32_t *piOrdinal) +{ + /* + * Validate input. + */ + PRTDBGMODINT pDbgMod = hDbgMod; + RTDBGMOD_VALID_RETURN_RC(pDbgMod, VERR_INVALID_HANDLE); + AssertPtrReturn(pszSymbol, VERR_INVALID_POINTER); + size_t cchSymbol = strlen(pszSymbol); + AssertReturn(cchSymbol, VERR_DBG_SYMBOL_NAME_OUT_OF_RANGE); + AssertReturn(cchSymbol < RTDBG_SYMBOL_NAME_LENGTH, VERR_DBG_SYMBOL_NAME_OUT_OF_RANGE); + AssertMsgReturn( iSeg <= RTDBGSEGIDX_LAST + || ( iSeg >= RTDBGSEGIDX_SPECIAL_FIRST + && iSeg <= RTDBGSEGIDX_SPECIAL_LAST), + ("%#x\n", iSeg), + VERR_DBG_INVALID_SEGMENT_INDEX); + AssertMsgReturn(off + cb >= off, ("off=%RTptr cb=%RTptr\n", off, cb), VERR_DBG_ADDRESS_WRAP); + AssertReturn(!(fFlags & ~RTDBGSYMBOLADD_F_VALID_MASK), VERR_INVALID_FLAGS); + + RTDBGMOD_LOCK(pDbgMod); + + /* + * Convert RVAs. + */ + if (iSeg == RTDBGSEGIDX_RVA) + { + iSeg = pDbgMod->pDbgVt->pfnRvaToSegOff(pDbgMod, off, &off); + if (iSeg == NIL_RTDBGSEGIDX) + { + RTDBGMOD_UNLOCK(pDbgMod); + return VERR_DBG_INVALID_RVA; + } + } + + /* + * Get down to business. + */ + int rc = pDbgMod->pDbgVt->pfnSymbolAdd(pDbgMod, pszSymbol, cchSymbol, iSeg, off, cb, fFlags, piOrdinal); + + RTDBGMOD_UNLOCK(pDbgMod); + return rc; +} +RT_EXPORT_SYMBOL(RTDbgModSymbolAdd); + + +RTDECL(uint32_t) RTDbgModSymbolCount(RTDBGMOD hDbgMod) +{ + PRTDBGMODINT pDbgMod = hDbgMod; + RTDBGMOD_VALID_RETURN_RC(pDbgMod, UINT32_MAX); + RTDBGMOD_LOCK(pDbgMod); + + uint32_t cSymbols = pDbgMod->pDbgVt->pfnSymbolCount(pDbgMod); + + RTDBGMOD_UNLOCK(pDbgMod); + return cSymbols; +} +RT_EXPORT_SYMBOL(RTDbgModSymbolCount); + + +RTDECL(int) RTDbgModSymbolByOrdinal(RTDBGMOD hDbgMod, uint32_t iOrdinal, PRTDBGSYMBOL pSymInfo) +{ + PRTDBGMODINT pDbgMod = hDbgMod; + RTDBGMOD_VALID_RETURN_RC(pDbgMod, VERR_INVALID_HANDLE); + RTDBGMOD_LOCK(pDbgMod); + + int rc = pDbgMod->pDbgVt->pfnSymbolByOrdinal(pDbgMod, iOrdinal, pSymInfo); + + RTDBGMOD_UNLOCK(pDbgMod); + return rc; +} +RT_EXPORT_SYMBOL(RTDbgModSymbolByOrdinal); + + +RTDECL(int) RTDbgModSymbolByOrdinalA(RTDBGMOD hDbgMod, uint32_t iOrdinal, PRTDBGSYMBOL *ppSymInfo) +{ + AssertPtr(ppSymInfo); + *ppSymInfo = NULL; + + PRTDBGSYMBOL pSymInfo = RTDbgSymbolAlloc(); + if (!pSymInfo) + return VERR_NO_MEMORY; + + int rc = RTDbgModSymbolByOrdinal(hDbgMod, iOrdinal, pSymInfo); + + if (RT_SUCCESS(rc)) + *ppSymInfo = pSymInfo; + else + RTDbgSymbolFree(pSymInfo); + return rc; +} +RT_EXPORT_SYMBOL(RTDbgModSymbolByOrdinalA); + + +/** + * Return a segment number/name as symbol if we couldn't find any + * valid symbols within the segment. + */ +DECL_NO_INLINE(static, int) +rtDbgModSymbolByAddrTrySegments(PRTDBGMODINT pDbgMod, RTDBGSEGIDX iSeg, RTUINTPTR off, + PRTINTPTR poffDisp, PRTDBGSYMBOL pSymInfo) +{ + Assert(iSeg <= RTDBGSEGIDX_LAST); + RTDBGSEGMENT SegInfo; + int rc = pDbgMod->pDbgVt->pfnSegmentByIndex(pDbgMod, iSeg, &SegInfo); + if (RT_SUCCESS(rc)) + { + pSymInfo->Value = 0; + pSymInfo->cb = SegInfo.cb; + pSymInfo->offSeg = 0; + pSymInfo->iSeg = iSeg; + pSymInfo->fFlags = 0; + if (SegInfo.szName[0]) + RTStrPrintf(pSymInfo->szName, sizeof(pSymInfo->szName), "start_seg%u_%s", SegInfo.iSeg, SegInfo.szName); + else + RTStrPrintf(pSymInfo->szName, sizeof(pSymInfo->szName), "start_seg%u", SegInfo.iSeg); + if (poffDisp) + *poffDisp = off; + return VINF_SUCCESS; + } + return VERR_SYMBOL_NOT_FOUND; +} + + +RTDECL(int) RTDbgModSymbolByAddr(RTDBGMOD hDbgMod, RTDBGSEGIDX iSeg, RTUINTPTR off, uint32_t fFlags, + PRTINTPTR poffDisp, PRTDBGSYMBOL pSymInfo) +{ + /* + * Validate input. + */ + PRTDBGMODINT pDbgMod = hDbgMod; + RTDBGMOD_VALID_RETURN_RC(pDbgMod, VERR_INVALID_HANDLE); + AssertPtrNull(poffDisp); + AssertPtr(pSymInfo); + AssertReturn(!(fFlags & ~RTDBGSYMADDR_FLAGS_VALID_MASK), VERR_INVALID_PARAMETER); + + RTDBGMOD_LOCK(pDbgMod); + + /* + * Convert RVAs. + */ + if (iSeg == RTDBGSEGIDX_RVA) + { + iSeg = pDbgMod->pDbgVt->pfnRvaToSegOff(pDbgMod, off, &off); + if (iSeg == NIL_RTDBGSEGIDX) + { + RTDBGMOD_UNLOCK(pDbgMod); + return VERR_DBG_INVALID_RVA; + } + } + + /* + * Get down to business. + */ + int rc = pDbgMod->pDbgVt->pfnSymbolByAddr(pDbgMod, iSeg, off, fFlags, poffDisp, pSymInfo); + + /* If we failed to locate a symbol, try use the specified segment as a reference. */ + if ( rc == VERR_SYMBOL_NOT_FOUND + && iSeg <= RTDBGSEGIDX_LAST + && !(fFlags & RTDBGSYMADDR_FLAGS_GREATER_OR_EQUAL)) + rc = rtDbgModSymbolByAddrTrySegments(pDbgMod, iSeg, off, poffDisp, pSymInfo); + + RTDBGMOD_UNLOCK(pDbgMod); + return rc; +} +RT_EXPORT_SYMBOL(RTDbgModSymbolByAddr); + + +RTDECL(int) RTDbgModSymbolByAddrA(RTDBGMOD hDbgMod, RTDBGSEGIDX iSeg, RTUINTPTR off, uint32_t fFlags, + PRTINTPTR poffDisp, PRTDBGSYMBOL *ppSymInfo) +{ + AssertPtr(ppSymInfo); + *ppSymInfo = NULL; + + PRTDBGSYMBOL pSymInfo = RTDbgSymbolAlloc(); + if (!pSymInfo) + return VERR_NO_MEMORY; + + int rc = RTDbgModSymbolByAddr(hDbgMod, iSeg, off, fFlags, poffDisp, pSymInfo); + + if (RT_SUCCESS(rc)) + *ppSymInfo = pSymInfo; + else + RTDbgSymbolFree(pSymInfo); + return rc; +} +RT_EXPORT_SYMBOL(RTDbgModSymbolByAddrA); + + +RTDECL(int) RTDbgModSymbolByName(RTDBGMOD hDbgMod, const char *pszSymbol, PRTDBGSYMBOL pSymInfo) +{ + /* + * Validate input. + */ + PRTDBGMODINT pDbgMod = hDbgMod; + RTDBGMOD_VALID_RETURN_RC(pDbgMod, VERR_INVALID_HANDLE); + AssertPtr(pszSymbol); + size_t cchSymbol = strlen(pszSymbol); + AssertReturn(cchSymbol, VERR_DBG_SYMBOL_NAME_OUT_OF_RANGE); + AssertReturn(cchSymbol < RTDBG_SYMBOL_NAME_LENGTH, VERR_DBG_SYMBOL_NAME_OUT_OF_RANGE); + AssertPtr(pSymInfo); + + /* + * Make the query. + */ + RTDBGMOD_LOCK(pDbgMod); + int rc = pDbgMod->pDbgVt->pfnSymbolByName(pDbgMod, pszSymbol, cchSymbol, pSymInfo); + RTDBGMOD_UNLOCK(pDbgMod); + + return rc; +} +RT_EXPORT_SYMBOL(RTDbgModSymbolByName); + + +RTDECL(int) RTDbgModSymbolByNameA(RTDBGMOD hDbgMod, const char *pszSymbol, PRTDBGSYMBOL *ppSymInfo) +{ + AssertPtr(ppSymInfo); + *ppSymInfo = NULL; + + PRTDBGSYMBOL pSymInfo = RTDbgSymbolAlloc(); + if (!pSymInfo) + return VERR_NO_MEMORY; + + int rc = RTDbgModSymbolByName(hDbgMod, pszSymbol, pSymInfo); + + if (RT_SUCCESS(rc)) + *ppSymInfo = pSymInfo; + else + RTDbgSymbolFree(pSymInfo); + return rc; +} +RT_EXPORT_SYMBOL(RTDbgModSymbolByNameA); + + +RTDECL(int) RTDbgModLineAdd(RTDBGMOD hDbgMod, const char *pszFile, uint32_t uLineNo, + RTDBGSEGIDX iSeg, RTUINTPTR off, uint32_t *piOrdinal) +{ + /* + * Validate input. + */ + PRTDBGMODINT pDbgMod = hDbgMod; + RTDBGMOD_VALID_RETURN_RC(pDbgMod, VERR_INVALID_HANDLE); + AssertPtr(pszFile); + size_t cchFile = strlen(pszFile); + AssertReturn(cchFile, VERR_DBG_FILE_NAME_OUT_OF_RANGE); + AssertReturn(cchFile < RTDBG_FILE_NAME_LENGTH, VERR_DBG_FILE_NAME_OUT_OF_RANGE); + AssertMsgReturn( iSeg <= RTDBGSEGIDX_LAST + || iSeg == RTDBGSEGIDX_RVA, + ("%#x\n", iSeg), + VERR_DBG_INVALID_SEGMENT_INDEX); + AssertReturn(uLineNo > 0 && uLineNo < UINT32_MAX, VERR_INVALID_PARAMETER); + + RTDBGMOD_LOCK(pDbgMod); + + /* + * Convert RVAs. + */ + if (iSeg == RTDBGSEGIDX_RVA) + { + iSeg = pDbgMod->pDbgVt->pfnRvaToSegOff(pDbgMod, off, &off); + if (iSeg == NIL_RTDBGSEGIDX) + { + RTDBGMOD_UNLOCK(pDbgMod); + return VERR_DBG_INVALID_RVA; + } + } + + /* + * Get down to business. + */ + int rc = pDbgMod->pDbgVt->pfnLineAdd(pDbgMod, pszFile, cchFile, uLineNo, iSeg, off, piOrdinal); + + RTDBGMOD_UNLOCK(pDbgMod); + return rc; +} +RT_EXPORT_SYMBOL(RTDbgModLineAdd); + + +RTDECL(uint32_t) RTDbgModLineCount(RTDBGMOD hDbgMod) +{ + PRTDBGMODINT pDbgMod = hDbgMod; + RTDBGMOD_VALID_RETURN_RC(pDbgMod, UINT32_MAX); + RTDBGMOD_LOCK(pDbgMod); + + uint32_t cLineNumbers = pDbgMod->pDbgVt->pfnLineCount(pDbgMod); + + RTDBGMOD_UNLOCK(pDbgMod); + return cLineNumbers; +} +RT_EXPORT_SYMBOL(RTDbgModLineCount); + + +RTDECL(int) RTDbgModLineByOrdinal(RTDBGMOD hDbgMod, uint32_t iOrdinal, PRTDBGLINE pLineInfo) +{ + PRTDBGMODINT pDbgMod = hDbgMod; + RTDBGMOD_VALID_RETURN_RC(pDbgMod, VERR_INVALID_HANDLE); + RTDBGMOD_LOCK(pDbgMod); + + int rc = pDbgMod->pDbgVt->pfnLineByOrdinal(pDbgMod, iOrdinal, pLineInfo); + + RTDBGMOD_UNLOCK(pDbgMod); + return rc; +} +RT_EXPORT_SYMBOL(RTDbgModLineByOrdinal); + + +RTDECL(int) RTDbgModLineByOrdinalA(RTDBGMOD hDbgMod, uint32_t iOrdinal, PRTDBGLINE *ppLineInfo) +{ + AssertPtr(ppLineInfo); + *ppLineInfo = NULL; + + PRTDBGLINE pLineInfo = RTDbgLineAlloc(); + if (!pLineInfo) + return VERR_NO_MEMORY; + + int rc = RTDbgModLineByOrdinal(hDbgMod, iOrdinal, pLineInfo); + + if (RT_SUCCESS(rc)) + *ppLineInfo = pLineInfo; + else + RTDbgLineFree(pLineInfo); + return rc; +} +RT_EXPORT_SYMBOL(RTDbgModLineByOrdinalA); + + +RTDECL(int) RTDbgModLineByAddr(RTDBGMOD hDbgMod, RTDBGSEGIDX iSeg, RTUINTPTR off, PRTINTPTR poffDisp, PRTDBGLINE pLineInfo) +{ + /* + * Validate input. + */ + PRTDBGMODINT pDbgMod = hDbgMod; + RTDBGMOD_VALID_RETURN_RC(pDbgMod, VERR_INVALID_HANDLE); + AssertPtrNull(poffDisp); + AssertPtr(pLineInfo); + + RTDBGMOD_LOCK(pDbgMod); + + /* + * Convert RVAs. + */ + if (iSeg == RTDBGSEGIDX_RVA) + { + iSeg = pDbgMod->pDbgVt->pfnRvaToSegOff(pDbgMod, off, &off); + if (iSeg == NIL_RTDBGSEGIDX) + { + RTDBGMOD_UNLOCK(pDbgMod); + return VERR_DBG_INVALID_RVA; + } + } + + int rc = pDbgMod->pDbgVt->pfnLineByAddr(pDbgMod, iSeg, off, poffDisp, pLineInfo); + + RTDBGMOD_UNLOCK(pDbgMod); + return rc; +} +RT_EXPORT_SYMBOL(RTDbgModLineByAddr); + + +RTDECL(int) RTDbgModLineByAddrA(RTDBGMOD hDbgMod, RTDBGSEGIDX iSeg, RTUINTPTR off, PRTINTPTR poffDisp, PRTDBGLINE *ppLineInfo) +{ + AssertPtr(ppLineInfo); + *ppLineInfo = NULL; + + PRTDBGLINE pLineInfo = RTDbgLineAlloc(); + if (!pLineInfo) + return VERR_NO_MEMORY; + + int rc = RTDbgModLineByAddr(hDbgMod, iSeg, off, poffDisp, pLineInfo); + + if (RT_SUCCESS(rc)) + *ppLineInfo = pLineInfo; + else + RTDbgLineFree(pLineInfo); + return rc; +} +RT_EXPORT_SYMBOL(RTDbgModLineByAddrA); + + +RTDECL(int) RTDbgModUnwindFrame(RTDBGMOD hDbgMod, RTDBGSEGIDX iSeg, RTUINTPTR off, PRTDBGUNWINDSTATE pState) +{ + /* + * Validate input. + */ + PRTDBGMODINT pDbgMod = hDbgMod; + RTDBGMOD_VALID_RETURN_RC(pDbgMod, VERR_INVALID_HANDLE); + AssertPtr(pState); + AssertReturn(pState->u32Magic == RTDBGUNWINDSTATE_MAGIC, VERR_INVALID_MAGIC); + + RTDBGMOD_LOCK(pDbgMod); + + /* + * Convert RVAs. + */ + if (iSeg == RTDBGSEGIDX_RVA) + { + iSeg = pDbgMod->pDbgVt->pfnRvaToSegOff(pDbgMod, off, &off); + if (iSeg == NIL_RTDBGSEGIDX) + { + RTDBGMOD_UNLOCK(pDbgMod); + return VERR_DBG_INVALID_RVA; + } + } + + /* + * Try the debug module first, then the image. + */ + int rc = VERR_DBG_NO_UNWIND_INFO; + if (pDbgMod->pDbgVt->pfnUnwindFrame) + rc = pDbgMod->pDbgVt->pfnUnwindFrame(pDbgMod, iSeg, off, pState); + if ( ( rc == VERR_DBG_NO_UNWIND_INFO + || rc == VERR_DBG_UNWIND_INFO_NOT_FOUND) + && pDbgMod->pImgVt + && pDbgMod->pImgVt->pfnUnwindFrame) + { + if (rc == VERR_DBG_NO_UNWIND_INFO) + rc = pDbgMod->pImgVt->pfnUnwindFrame(pDbgMod, iSeg, off, pState); + else + { + rc = pDbgMod->pImgVt->pfnUnwindFrame(pDbgMod, iSeg, off, pState); + if (rc == VERR_DBG_NO_UNWIND_INFO) + rc = VERR_DBG_UNWIND_INFO_NOT_FOUND; + } + } + + RTDBGMOD_UNLOCK(pDbgMod); + return rc; + +} +RT_EXPORT_SYMBOL(RTDbgModUnwindFrame); + |