/**
* Initializes the tracing.
*
* @returns VBox status code
* @param pVM The cross context VM structure.
*/
int dbgfR3TraceInit(PVM pVM)
{
/*
* Initialize the trace buffer handles.
*/
Assert(NIL_RTTRACEBUF == (RTTRACEBUF)NULL);
pVM->hTraceBufR3 = NIL_RTTRACEBUF;
pVM->hTraceBufRC = NIL_RTRCPTR;
pVM->hTraceBufR0 = NIL_RTR0PTR;
/*
* Check the config and enable tracing if requested.
*/
PCFGMNODE pDbgfNode = CFGMR3GetChild(CFGMR3GetRoot(pVM), "DBGF");
#if defined(DEBUG) || defined(RTTRACE_ENABLED)
bool const fDefault = false;
const char * const pszConfigDefault = "";
#else
bool const fDefault = false;
const char * const pszConfigDefault = "";
#endif
bool fTracingEnabled;
int rc = CFGMR3QueryBoolDef(pDbgfNode, "TracingEnabled", &fTracingEnabled, fDefault);
AssertRCReturn(rc, rc);
if (fTracingEnabled)
{
rc = dbgfR3TraceEnable(pVM, 0, 0);
if (RT_SUCCESS(rc))
{
if (pDbgfNode)
{
char *pszTracingConfig;
rc = CFGMR3QueryStringAllocDef(pDbgfNode, "TracingConfig", &pszTracingConfig, pszConfigDefault);
if (RT_SUCCESS(rc))
{
rc = DBGFR3TraceConfig(pVM, pszTracingConfig);
if (RT_FAILURE(rc))
rc = VMSetError(pVM, rc, RT_SRC_POS, "TracingConfig=\"%s\" -> %Rrc", pszTracingConfig, rc);
MMR3HeapFree(pszTracingConfig);
}
}
else
{
rc = DBGFR3TraceConfig(pVM, pszConfigDefault);
if (RT_FAILURE(rc))
rc = VMSetError(pVM, rc, RT_SRC_POS, "TracingConfig=\"%s\" (default) -> %Rrc", pszConfigDefault, rc);
}
}
}
/*
* Register a debug info item that will dump the trace buffer content.
*/
if (RT_SUCCESS(rc))
rc = DBGFR3InfoRegisterInternal(pVM, "tracebuf", "Display the trace buffer content. No arguments.", dbgfR3TraceInfo);
return rc;
}
/**
* Same as dbgfR3AsSearchEnv, except that the path is taken from the DBGF config
* (CFGM).
*
* Nothing is done if the CFGM variable isn't set.
*
* @returns VBox status code.
* @param pszFilename The filename.
* @param pszCfgValue The name of the config variable (under /DBGF/).
* @param pfnOpen The open callback function.
* @param pvUser User argument for the callback.
*/
static int dbgfR3AsSearchCfgPath(PVM pVM, const char *pszFilename, const char *pszCfgValue, PFNDBGFR3ASSEARCHOPEN pfnOpen, void *pvUser)
{
char *pszPath;
int rc = CFGMR3QueryStringAllocDef(CFGMR3GetChild(CFGMR3GetRoot(pVM), "/DBGF"), pszCfgValue, &pszPath, NULL);
if (RT_FAILURE(rc))
return rc;
if (!pszPath)
return VERR_FILE_NOT_FOUND;
rc = dbgfR3AsSearchPath(pszFilename, pszPath, pfnOpen, pvUser);
MMR3HeapFree(pszPath);
return rc;
}
/**
* Initializes the address space parts of DBGF.
*
* @returns VBox status code.
* @param pUVM The user mode VM handle.
*/
int dbgfR3AsInit(PUVM pUVM)
{
Assert(pUVM->pVM);
/*
* Create the semaphore.
*/
int rc = RTSemRWCreate(&pUVM->dbgf.s.hAsDbLock);
AssertRCReturn(rc, rc);
/*
* Create the debugging config instance and set it up, defaulting to
* deferred loading in order to keep things fast.
*/
rc = RTDbgCfgCreate(&pUVM->dbgf.s.hDbgCfg, NULL, true /*fNativePaths*/);
AssertRCReturn(rc, rc);
rc = RTDbgCfgChangeUInt(pUVM->dbgf.s.hDbgCfg, RTDBGCFGPROP_FLAGS, RTDBGCFGOP_PREPEND,
RTDBGCFG_FLAGS_DEFERRED);
AssertRCReturn(rc, rc);
static struct
{
RTDBGCFGPROP enmProp;
const char *pszEnvName;
const char *pszCfgName;
} const s_aProps[] =
{
{ RTDBGCFGPROP_FLAGS, "VBOXDBG_FLAGS", "Flags" },
{ RTDBGCFGPROP_PATH, "VBOXDBG_PATH", "Path" },
{ RTDBGCFGPROP_SUFFIXES, "VBOXDBG_SUFFIXES", "Suffixes" },
{ RTDBGCFGPROP_SRC_PATH, "VBOXDBG_SRC_PATH", "SrcPath" },
};
PCFGMNODE pCfgDbgf = CFGMR3GetChild(CFGMR3GetRootU(pUVM), "/DBGF");
for (unsigned i = 0; i < RT_ELEMENTS(s_aProps); i++)
{
char szEnvValue[8192];
rc = RTEnvGetEx(RTENV_DEFAULT, s_aProps[i].pszEnvName, szEnvValue, sizeof(szEnvValue), NULL);
if (RT_SUCCESS(rc))
{
rc = RTDbgCfgChangeString(pUVM->dbgf.s.hDbgCfg, s_aProps[i].enmProp, RTDBGCFGOP_PREPEND, szEnvValue);
if (RT_FAILURE(rc))
return VMR3SetError(pUVM, rc, RT_SRC_POS,
"DBGF Config Error: %s=%s -> %Rrc", s_aProps[i].pszEnvName, szEnvValue, rc);
}
else if (rc != VERR_ENV_VAR_NOT_FOUND)
return VMR3SetError(pUVM, rc, RT_SRC_POS,
"DBGF Config Error: Error querying env.var. %s: %Rrc", s_aProps[i].pszEnvName, rc);
char *pszCfgValue;
rc = CFGMR3QueryStringAllocDef(pCfgDbgf, s_aProps[i].pszCfgName, &pszCfgValue, NULL);
if (RT_FAILURE(rc))
return VMR3SetError(pUVM, rc, RT_SRC_POS,
"DBGF Config Error: Querying /DBGF/%s -> %Rrc", s_aProps[i].pszCfgName, rc);
if (pszCfgValue)
{
rc = RTDbgCfgChangeString(pUVM->dbgf.s.hDbgCfg, s_aProps[i].enmProp, RTDBGCFGOP_PREPEND, pszCfgValue);
if (RT_FAILURE(rc))
return VMR3SetError(pUVM, rc, RT_SRC_POS,
"DBGF Config Error: /DBGF/%s=%s -> %Rrc", s_aProps[i].pszCfgName, pszCfgValue, rc);
}
}
/*
* Prepend the NoArch and VBoxDbgSyms directories to the path.
*/
char szPath[RTPATH_MAX];
rc = RTPathAppPrivateNoArch(szPath, sizeof(szPath));
AssertRCReturn(rc, rc);
#ifdef RT_OS_DARWIN
rc = RTPathAppend(szPath, sizeof(szPath), "../Resources/VBoxDbgSyms/");
#else
rc = RTDbgCfgChangeString(pUVM->dbgf.s.hDbgCfg, RTDBGCFGPROP_PATH, RTDBGCFGOP_PREPEND, szPath);
AssertRCReturn(rc, rc);
rc = RTPathAppend(szPath, sizeof(szPath), "VBoxDbgSyms/");
#endif
AssertRCReturn(rc, rc);
rc = RTDbgCfgChangeString(pUVM->dbgf.s.hDbgCfg, RTDBGCFGPROP_PATH, RTDBGCFGOP_PREPEND, szPath);
AssertRCReturn(rc, rc);
/*
* Create the standard address spaces.
*/
RTDBGAS hDbgAs;
rc = RTDbgAsCreate(&hDbgAs, 0, RTGCPTR_MAX, "Global");
AssertRCReturn(rc, rc);
rc = DBGFR3AsAdd(pUVM, hDbgAs, NIL_RTPROCESS);
AssertRCReturn(rc, rc);
RTDbgAsRetain(hDbgAs);
pUVM->dbgf.s.ahAsAliases[DBGF_AS_ALIAS_2_INDEX(DBGF_AS_GLOBAL)] = hDbgAs;
RTDbgAsRetain(hDbgAs);
pUVM->dbgf.s.ahAsAliases[DBGF_AS_ALIAS_2_INDEX(DBGF_AS_KERNEL)] = hDbgAs;
rc = RTDbgAsCreate(&hDbgAs, 0, RTGCPHYS_MAX, "Physical");
AssertRCReturn(rc, rc);
rc = DBGFR3AsAdd(pUVM, hDbgAs, NIL_RTPROCESS);
AssertRCReturn(rc, rc);
RTDbgAsRetain(hDbgAs);
pUVM->dbgf.s.ahAsAliases[DBGF_AS_ALIAS_2_INDEX(DBGF_AS_PHYS)] = hDbgAs;
rc = RTDbgAsCreate(&hDbgAs, 0, RTRCPTR_MAX, "HyperRawMode");
AssertRCReturn(rc, rc);
rc = DBGFR3AsAdd(pUVM, hDbgAs, NIL_RTPROCESS);
AssertRCReturn(rc, rc);
RTDbgAsRetain(hDbgAs);
pUVM->dbgf.s.ahAsAliases[DBGF_AS_ALIAS_2_INDEX(DBGF_AS_RC)] = hDbgAs;
RTDbgAsRetain(hDbgAs);
pUVM->dbgf.s.ahAsAliases[DBGF_AS_ALIAS_2_INDEX(DBGF_AS_RC_AND_GC_GLOBAL)] = hDbgAs;
rc = RTDbgAsCreate(&hDbgAs, 0, RTR0PTR_MAX, "HyperRing0");
AssertRCReturn(rc, rc);
rc = DBGFR3AsAdd(pUVM, hDbgAs, NIL_RTPROCESS);
AssertRCReturn(rc, rc);
RTDbgAsRetain(hDbgAs);
pUVM->dbgf.s.ahAsAliases[DBGF_AS_ALIAS_2_INDEX(DBGF_AS_R0)] = hDbgAs;
return VINF_SUCCESS;
}
static int pdmacFileInitialize(PPDMASYNCCOMPLETIONEPCLASS pClassGlobals, PCFGMNODE pCfgNode)
{
PPDMASYNCCOMPLETIONEPCLASSFILE pEpClassFile = (PPDMASYNCCOMPLETIONEPCLASSFILE)pClassGlobals;
RTFILEAIOLIMITS AioLimits; /** < Async I/O limitations. */
int rc = RTFileAioGetLimits(&AioLimits);
#ifdef DEBUG
if (RT_SUCCESS(rc) && RTEnvExist("VBOX_ASYNC_IO_FAILBACK"))
rc = VERR_ENV_VAR_NOT_FOUND;
#endif
if (RT_FAILURE(rc))
{
LogRel(("AIO: Async I/O manager not supported (rc=%Rrc). Falling back to simple manager\n",
rc));
pEpClassFile->enmMgrTypeOverride = PDMACEPFILEMGRTYPE_SIMPLE;
pEpClassFile->enmEpBackendDefault = PDMACFILEEPBACKEND_BUFFERED;
}
else
{
pEpClassFile->uBitmaskAlignment = AioLimits.cbBufferAlignment ? ~((RTR3UINTPTR)AioLimits.cbBufferAlignment - 1) : RTR3UINTPTR_MAX;
pEpClassFile->cReqsOutstandingMax = AioLimits.cReqsOutstandingMax;
if (pCfgNode)
{
/* Query the default manager type */
char *pszVal = NULL;
rc = CFGMR3QueryStringAllocDef(pCfgNode, "IoMgr", &pszVal, "Async");
AssertLogRelRCReturn(rc, rc);
rc = pdmacFileMgrTypeFromName(pszVal, &pEpClassFile->enmMgrTypeOverride);
MMR3HeapFree(pszVal);
if (RT_FAILURE(rc))
return rc;
LogRel(("AIOMgr: Default manager type is \"%s\"\n", pdmacFileMgrTypeToName(pEpClassFile->enmMgrTypeOverride)));
/* Query default backend type */
rc = CFGMR3QueryStringAllocDef(pCfgNode, "FileBackend", &pszVal, "NonBuffered");
AssertLogRelRCReturn(rc, rc);
rc = pdmacFileBackendTypeFromName(pszVal, &pEpClassFile->enmEpBackendDefault);
MMR3HeapFree(pszVal);
if (RT_FAILURE(rc))
return rc;
LogRel(("AIOMgr: Default file backend is \"%s\"\n", pdmacFileBackendTypeToName(pEpClassFile->enmEpBackendDefault)));
#ifdef RT_OS_LINUX
if ( pEpClassFile->enmMgrTypeOverride == PDMACEPFILEMGRTYPE_ASYNC
&& pEpClassFile->enmEpBackendDefault == PDMACFILEEPBACKEND_BUFFERED)
{
LogRel(("AIOMgr: Linux does not support buffered async I/O, changing to non buffered\n"));
pEpClassFile->enmEpBackendDefault = PDMACFILEEPBACKEND_NON_BUFFERED;
}
#endif
}
else
{
/* No configuration supplied, set defaults */
pEpClassFile->enmEpBackendDefault = PDMACFILEEPBACKEND_NON_BUFFERED;
pEpClassFile->enmMgrTypeOverride = PDMACEPFILEMGRTYPE_ASYNC;
}
}
/* Init critical section. */
rc = RTCritSectInit(&pEpClassFile->CritSect);
#ifdef VBOX_WITH_DEBUGGER
/* Install the error injection handler. */
if (RT_SUCCESS(rc))
{
rc = DBGCRegisterCommands(&g_aCmds[0], RT_ELEMENTS(g_aCmds));
AssertRC(rc);
}
#ifdef PDM_ASYNC_COMPLETION_FILE_WITH_DELAY
rc = TMR3TimerCreateInternal(pEpClassFile->Core.pVM, TMCLOCK_REAL, pdmacR3TimerCallback, pEpClassFile, "AC Delay", &pEpClassFile->pTimer);
AssertRC(rc);
pEpClassFile->cMilliesNext = UINT64_MAX;
#endif
#endif
return rc;
}