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ceemain.cpp
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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// ===========================================================================
// File: CEEMAIN.CPP
// ===========================================================================
//
//
//
// The CLR code base uses a hyperlink feature of the HyperAddin plugin for Visual Studio. If you don't see
// 'HyperAddin' in your Visual Studio menu bar you don't have this support. To get it type
//
// \\clrmain\tools\installCLRAddins
//
// After installing HyperAddin, your first run of VS should be as an administrator so HyperAddin can update
// some registry information.
//
// At this point the code: prefixes become hyperlinks in Visual Studio and life is good. See
// http://mswikis/clr/dev/Pages/CLR%20Team%20Commenting.aspx for more information
//
// There is a bug associated with Visual Studio where it does not recognise the hyperlink if there is a ::
// preceding it on the same line. Since C++ uses :: as a namespace separator, this can often mean that the
// second hyperlink on a line does not work. To work around this it is better to use '.' instead of :: as
// the namespace separators in code: hyperlinks.
//
// #StartHere
// #TableOfContents The .NET Runtime Table of contents
//
// This comment is mean to be a nexus that allows you to jump quickly to various interesting parts of the
// runtime.
//
// You can refer to product studio bugs using urls like the following
// * http://bugcheck/bugs/DevDivBugs/2320.asp
// * http://bugcheck/bugs/VSWhidbey/601210.asp
//
// Dev10 Bugs can be added with URLs like the following (for Dev10 bug 671409)
// * http://tkbgitvstfat01:8090/wi.aspx?id=671409
//
//*************************************************************************************************
//
// * Introduction to the runtime file:../../Documentation/botr/botr-faq.md
//
// #MajorDataStructures. The major data structures associated with the runtime are
// * code:Thread (see file:threads.h#ThreadClass) - the additional thread state the runtime needs.
// * code:AppDomain - The managed version of a process
// * code:Assembly - The unit of deployment and versioning (may be several DLLs but often is only one).
// * code:Module - represents a Module (DLL or EXE).
// * code:MethodTable - represents the 'hot' part of a type (needed during normal execution)
// * code:EEClass - represents the 'cold' part of a type (used during compilation, interop, ...)
// * code:MethodDesc - represents a Method
// * code:FieldDesc - represents a Field.
// * code:Object - represents a object on the GC heap allocated with code:Alloc
//
// * ECMA specifications
// * Partition I Concepts
// http://download.microsoft.com/download/D/C/1/DC1B219F-3B11-4A05-9DA3-2D0F98B20917/Partition%20I%20Architecture.doc
// * Partition II Meta Data
// http://download.microsoft.com/download/D/C/1/DC1B219F-3B11-4A05-9DA3-2D0F98B20917/Partition%20II%20Metadata.doc
// * Partition III IL
// http://download.microsoft.com/download/D/C/1/DC1B219F-3B11-4A05-9DA3-2D0F98B20917/Partition%20III%20CIL.doc
//
// * Serge Liden (worked on the CLR and owned ILASM / ILDASM for a long time wrote a good book on IL
// * Expert .NET 2.0 IL Assembler http://www.amazon.com/Expert-NET-2-0-IL-Assembler/dp/1590596463
//
// * This is also a pretty nice overview of what the CLR is at
// http://msdn2.microsoft.com/en-us/netframework/aa497266.aspx
//
// * code:EEStartup - This routine must be called before any interesting runtime services are used. It is
// invoked as part of mscorwks's DllMain logic.
// * code:#EEShutDown - Code called before we shut down the EE.
//
// * file:..\inc\corhdr.h#ManagedHeader - From a data structure point of view, this is the entry point into
// the runtime. This is how all other data in the EXE are found.
//
// * code:ICorJitCompiler#EEToJitInterface - This is the interface from the EE to the Just in time (JIT)
// compiler. The interface to the JIT is relatively simple (compileMethod), however the EE provides a
// rich set of callbacks so the JIT can get all the information it needs. See also
// file:../../Documentation/botr/ryujit-overview.md for general information on the JIT.
//
// * code:VirtualCallStubManager - This is the main class that implements interface dispatch
//
// * Precode - Every method needs entry point for other code to call even if that native code does not
// actually exist yet. To support this methods can have code:Precode that is an entry point that exists
// and will call the JIT compiler if the code does not yet exist.
//
// * NGEN - NGen stands for Native code GENeration and it is the runtime way of precompiling IL and IL
// Meta-data into native code and runtime data structures. At compilation time the most
// fundamental data structures is the code:ZapNode which represents something that needs to go into the
// NGEN image.
//
// * What is cooperative / preemtive mode ? file:threads.h#CooperativeMode and
// file:threads.h#SuspendingTheRuntime and file:../../Documentation/botr/threading.md
// * Garbage collection - file:gc.cpp#Overview and file:../../Documentation/botr/garbage-collection.md
// * code:AppDomain - The managed version of a process.
// * Calling Into the runtime (FCALLs QCalls) file:../../Documentation/botr/corelib.md
// * Exceptions - file:../../Documentation/botr/exceptions.md. The most important routine to start
// with is code:COMPlusFrameHandler which is the routine that we hook up to get called when an unmanaged
// exception happens.
// * Assembly Loading file:../../Documentation/botr/type-loader.md
// * Profiling file:../../Documentation/botr/profiling.md and file:../../Documentation/botr/profilability.md
// * FCALLS QCALLS (calling into the runtime from managed code)
// file:../../Documentation/botr/corelib.md
// * Event Tracing for Windows
// * file:../inc/eventtrace.h#EventTracing -
// * This is the main file dealing with event tracing in CLR
// * The implementation of this class is available in file:eventtrace.cpp
// * file:../inc/eventtrace.h#CEtwTracer - This is the main class dealing with event tracing in CLR.
// Follow the link for more information on how this feature has been implemented
// * http://mswikis/clr/dev/Pages/CLR%20ETW%20Events%20Wiki.aspx - Follow the link for more information on how to
// use this instrumentation feature.
// ----------------------------------------------------------------------------------------------------
// Features in the runtime that have been given hyperlinks
//
// * code:Nullable#NullableFeature - the Nullable<T> type has special runtime semantics associated with
// boxing this describes this feature.
#include "common.h"
#include "vars.hpp"
#include "log.h"
#include "ceemain.h"
#include "clsload.hpp"
#include "object.h"
#include "hash.h"
#include "ecall.h"
#include "ceemain.h"
#include "dllimport.h"
#include "syncblk.h"
#include "eeconfig.h"
#include "stublink.h"
#include "method.hpp"
#include "codeman.h"
#include "frames.h"
#include "threads.h"
#include "stackwalk.h"
#include "gcheaputilities.h"
#include "interoputil.h"
#include "fieldmarshaler.h"
#include "dbginterface.h"
#include "eedbginterfaceimpl.h"
#include "debugdebugger.h"
#include "cordbpriv.h"
#include "comdelegate.h"
#include "appdomain.hpp"
#include "eventtrace.h"
#include "corhost.h"
#include "binder.h"
#include "olevariant.h"
#include "comcallablewrapper.h"
#include "../dlls/mscorrc/resource.h"
#include "util.hpp"
#include "shimload.h"
#include "posterror.h"
#include "virtualcallstub.h"
#include "strongnameinternal.h"
#include "syncclean.hpp"
#include "debuginfostore.h"
#include "finalizerthread.h"
#include "threadsuspend.h"
#include "disassembler.h"
#include "jithost.h"
#include "pgo.h"
#include "pendingload.h"
#include "cdacplatformmetadata.hpp"
#ifndef TARGET_UNIX
#include "dwreport.h"
#endif // !TARGET_UNIX
#include "stringarraylist.h"
#include "stubhelpers.h"
#ifdef FEATURE_COMINTEROP
#include "runtimecallablewrapper.h"
#include "interoplibinterface.h"
#endif // FEATURE_COMINTEROP
#ifdef FEATURE_COMINTEROP_APARTMENT_SUPPORT
#include "olecontexthelpers.h"
#endif // FEATURE_COMINTEROP_APARTMENT_SUPPORT
#ifdef PROFILING_SUPPORTED
#include "proftoeeinterfaceimpl.h"
#include "profilinghelper.h"
#endif // PROFILING_SUPPORTED
#ifdef FEATURE_INTERPRETER
#include "interpreter.h"
#endif // FEATURE_INTERPRETER
#ifdef FEATURE_PERFMAP
#include "perfmap.h"
#endif
#include "diagnosticserveradapter.h"
#include "eventpipeadapter.h"
#if defined(FEATURE_PERFTRACING) && defined(TARGET_LINUX)
#include "user_events.h"
#endif // defined(FEATURE_PERFTRACING) && defined(TARGET_LINUX)
#ifndef TARGET_UNIX
// Included for referencing __security_cookie
#include "process.h"
#endif // !TARGET_UNIX
#ifdef FEATURE_GDBJIT
#include "gdbjit.h"
#endif // FEATURE_GDBJIT
#include "genanalysis.h"
static int GetThreadUICultureId(_Out_ LocaleIDValue* pLocale); // TODO: This shouldn't use the LCID. We should rely on name instead
static HRESULT GetThreadUICultureNames(__inout StringArrayList* pCultureNames);
HRESULT EEStartup();
static void InitializeGarbageCollector();
#ifdef DEBUGGING_SUPPORTED
static void InitializeDebugger(void);
static void TerminateDebugger(void);
extern "C" HRESULT __cdecl CorDBGetInterface(DebugInterface** rcInterface);
#endif // DEBUGGING_SUPPORTED
// g_coreclr_embedded indicates that coreclr is linked directly into the program
// g_hostpolicy_embedded indicates that the hostpolicy library is linked directly into the executable
#ifdef CORECLR_EMBEDDED
bool g_coreclr_embedded = true;
bool g_hostpolicy_embedded = true; // We always embed hostpolicy if coreclr is also embedded
#else
bool g_coreclr_embedded = false;
bool g_hostpolicy_embedded = false;
#endif
// Remember how the last startup of EE went.
HRESULT g_EEStartupStatus = S_OK;
// Flag indicating if the EE has been started. This is set prior to initializing the default AppDomain, and so does not indicate that
// the EE is fully able to execute arbitrary managed code. To ensure the EE is fully started, call EnsureEEStarted rather than just
// checking this flag.
Volatile<BOOL> g_fEEStarted = FALSE;
// The OS thread ID of the thread currently performing EE startup, or 0 if there is no such thread.
DWORD g_dwStartupThreadId = 0;
// Event to synchronize EE shutdown.
static CLREvent * g_pEEShutDownEvent;
static DangerousNonHostedSpinLock g_EEStartupLock;
// ---------------------------------------------------------------------------
// %%Function: EnsureEEStarted()
//
// Description: Ensure the CLR is started.
// ---------------------------------------------------------------------------
HRESULT EnsureEEStarted()
{
CONTRACTL
{
NOTHROW;
GC_TRIGGERS;
MODE_PREEMPTIVE;
ENTRY_POINT;
}
CONTRACTL_END;
if (g_fEEShutDown)
return E_FAIL;
HRESULT hr = E_FAIL;
// On non x86 platforms, when we load CoreLib during EEStartup, we will
// re-enter _CorDllMain with a DLL_PROCESS_ATTACH for CoreLib. We are
// far enough in startup that this is allowed, however we don't want to
// re-start the startup code so we need to check to see if startup has
// been initiated or completed before we call EEStartup.
//
// We do however want to make sure other threads block until the EE is started,
// which we will do further down.
if (!g_fEEStarted)
{
// Initialize our configuration.
CLRConfig::Initialize();
BOOL bStarted=FALSE;
{
DangerousNonHostedSpinLockHolder lockHolder(&g_EEStartupLock);
// Now that we've acquired the lock, check again to make sure we aren't in
// the process of starting the CLR or that it hasn't already been fully started.
// At this point, if startup has been inited we don't have anything more to do.
// And if EEStartup already failed before, we don't do it again.
if (!g_fEEStarted && !g_fEEInit && SUCCEEDED (g_EEStartupStatus))
{
g_dwStartupThreadId = GetCurrentThreadId();
EEStartup();
bStarted=g_fEEStarted;
hr = g_EEStartupStatus;
g_dwStartupThreadId = 0;
}
else
{
hr = g_EEStartupStatus;
if (SUCCEEDED(g_EEStartupStatus))
{
hr = S_FALSE;
}
}
}
}
else
{
//
// g_fEEStarted is TRUE, but startup may not be complete since we initialize the default AppDomain
// *after* setting that flag. g_fEEStarted is set inside of g_EEStartupLock, and that lock is
// not released until the EE is really started - so we can quickly check whether the EE is definitely
// started by checking if that lock is currently held. If it is not, then we know the other thread
// (that is actually doing the startup) has finished startup. If it is currently held, then we
// need to wait for the other thread to release it, which we do by simply acquiring the lock ourselves.
//
// We do not want to do this blocking if we are the thread currently performing EE startup. So we check
// that first.
//
// Note that the call to IsHeld here is an "acquire" barrier, as is acquiring the lock. And the release of
// the lock by the other thread is a "release" barrier, due to the volatile semantics in the lock's
// implementation. This assures us that once we observe the lock having been released, we are guaranteed
// to observe a fully-initialized EE.
//
// A note about thread affinity here: we're using the OS thread ID of the current thread without
// asking the host to pin us to this thread, as we did above. We can get away with this, because we are
// only interested in a particular thread ID (that of the "startup" thread) and *that* particular thread
// is already affinitized by the code above. So if we get that particular OS thread ID, we know for sure
// we are really the startup thread.
//
if (g_EEStartupLock.IsHeld() && g_dwStartupThreadId != GetCurrentThreadId())
{
DangerousNonHostedSpinLockHolder lockHolder(&g_EEStartupLock);
}
hr = g_EEStartupStatus;
if (SUCCEEDED(g_EEStartupStatus))
{
hr = S_FALSE;
}
}
return hr;
}
#ifndef TARGET_UNIX
// This is our Ctrl-C, Ctrl-Break, etc. handler.
static BOOL WINAPI DbgCtrlCHandler(DWORD dwCtrlType)
{
WRAPPER_NO_CONTRACT;
#if defined(DEBUGGING_SUPPORTED)
// Note that if a managed-debugger is attached, it's actually attached with the native
// debugging pipeline and it will get a control-c notifications via native debug events.
// However, if we let the native debugging pipeline handle the event and send the notification
// to the debugger, then we break pre-V4 behaviour because we intercept handlers registered
// in-process. See Dev10 Bug 846455 for more information.
if (CORDebuggerAttached() &&
(dwCtrlType == CTRL_C_EVENT || dwCtrlType == CTRL_BREAK_EVENT))
{
return g_pDebugInterface->SendCtrlCToDebugger(dwCtrlType);
}
else
#endif // DEBUGGING_SUPPORTED
{
if (dwCtrlType == CTRL_CLOSE_EVENT || dwCtrlType == CTRL_SHUTDOWN_EVENT)
{
// Initiate shutdown so the ProcessExit handlers run
ForceEEShutdown(SCA_ReturnWhenShutdownComplete);
}
g_fInControlC = true; // only for weakening assertions in checked build.
return FALSE; // keep looking for a real handler.
}
}
#endif
// A host can specify that it only wants one version of hosting interface to be used.
BOOL g_singleVersionHosting;
#ifdef TARGET_WINDOWS
typedef BOOL(WINAPI* PINITIALIZECONTEXT2)(PVOID Buffer, DWORD ContextFlags, PCONTEXT* Context, PDWORD ContextLength, ULONG64 XStateCompactionMask);
PINITIALIZECONTEXT2 g_pfnInitializeContext2 = NULL;
#ifdef TARGET_ARM64
typedef DWORD64(WINAPI* PGETENABLEDXSTATEFEATURES)();
PGETENABLEDXSTATEFEATURES g_pfnGetEnabledXStateFeatures = NULL;
typedef BOOL(WINAPI* PGETXSTATEFEATURESMASK)(PCONTEXT Context, PDWORD64 FeatureMask);
PGETXSTATEFEATURESMASK g_pfnGetXStateFeaturesMask = NULL;
typedef BOOL(WINAPI* PSETXSTATEFEATURESMASK)(PCONTEXT Context, DWORD64 FeatureMask);
PSETXSTATEFEATURESMASK g_pfnSetXStateFeaturesMask = NULL;
#endif // TARGET_ARM64
static BOOLEAN WINAPI RtlDllShutdownInProgressFallback()
{
return g_fProcessDetach;
}
PRTLDLLSHUTDOWNINPROGRESS g_pfnRtlDllShutdownInProgress = &RtlDllShutdownInProgressFallback;
#ifdef TARGET_X86
typedef VOID(__cdecl* PRTLRESTORECONTEXT)(PCONTEXT ContextRecord, struct _EXCEPTION_RECORD* ExceptionRecord);
PRTLRESTORECONTEXT g_pfnRtlRestoreContext = NULL;
#endif // TARGET_X86
void InitializeOptionalWindowsAPIPointers()
{
HMODULE hm = GetModuleHandleW(_T("kernel32.dll"));
g_pfnInitializeContext2 = (PINITIALIZECONTEXT2)GetProcAddress(hm, "InitializeContext2");
#ifdef TARGET_ARM64
g_pfnGetEnabledXStateFeatures = (PGETENABLEDXSTATEFEATURES)GetProcAddress(hm, "GetEnabledXStateFeatures");
g_pfnGetXStateFeaturesMask = (PGETXSTATEFEATURESMASK)GetProcAddress(hm, "GetXStateFeaturesMask");
g_pfnSetXStateFeaturesMask = (PSETXSTATEFEATURESMASK)GetProcAddress(hm, "SetXStateFeaturesMask");
#endif // TARGET_ARM64
hm = GetModuleHandleW(_T("ntdll.dll"));
PRTLDLLSHUTDOWNINPROGRESS pfn = (PRTLDLLSHUTDOWNINPROGRESS)GetProcAddress(hm, "RtlDllShutdownInProgress");
if (pfn != NULL)
g_pfnRtlDllShutdownInProgress = pfn;
#ifdef TARGET_X86
g_pfnRtlRestoreContext = (PRTLRESTORECONTEXT)GetProcAddress(hm, "RtlRestoreContext");
#endif //TARGET_X86
}
#endif // TARGET_WINDOWS
void InitializeStartupFlags()
{
CONTRACTL {
NOTHROW;
GC_TRIGGERS;
MODE_ANY;
} CONTRACTL_END;
STARTUP_FLAGS flags = CorHost2::GetStartupFlags();
if (flags & STARTUP_CONCURRENT_GC)
g_IGCconcurrent = 1;
else
g_IGCconcurrent = 0;
g_heap_type = ((flags & STARTUP_SERVER_GC) && GetCurrentProcessCpuCount() > 1) ? GC_HEAP_SVR : GC_HEAP_WKS;
g_IGCHoardVM = (flags & STARTUP_HOARD_GC_VM) == 0 ? 0 : 1;
}
//-----------------------------------------------------------------------------
void InitGSCookie()
{
CONTRACTL
{
THROWS;
GC_NOTRIGGER;
MODE_ANY;
}
CONTRACTL_END;
volatile GSCookie * pGSCookiePtr = GetProcessGSCookiePtr();
// The GS cookie is stored in a read only data segment
DWORD oldProtection;
if(!ClrVirtualProtect((LPVOID)pGSCookiePtr, sizeof(GSCookie), PAGE_READWRITE, &oldProtection))
{
ThrowLastError();
}
#ifdef TARGET_UNIX
// PAL layer is unable to extract old protection for regions that were not allocated using VirtualAlloc
oldProtection = PAGE_READONLY;
#endif // TARGET_UNIX
#ifndef TARGET_UNIX
// The GSCookie cannot be in a writeable page
assert(((oldProtection & (PAGE_READWRITE|PAGE_WRITECOPY|PAGE_EXECUTE_READWRITE|
PAGE_EXECUTE_WRITECOPY|PAGE_WRITECOMBINE)) == 0));
// Forces VC cookie to be initialized.
void * pf = &__security_check_cookie;
pf = NULL;
GSCookie val = (GSCookie)(__security_cookie ^ GetTickCount());
#else // !TARGET_UNIX
// REVIEW: Need something better for PAL...
GSCookie val = (GSCookie)GetTickCount();
#endif // !TARGET_UNIX
#ifdef _DEBUG
// In _DEBUG, always use the same value to make it easier to search for the cookie
val = (GSCookie) BIT64_ONLY(0x9ABCDEF012345678) NOT_BIT64(0x12345678);
#endif
// To test if it is initialized. Also for ICorMethodInfo::getGSCookie()
if (val == 0)
val ++;
*pGSCookiePtr = val;
if(!ClrVirtualProtect((LPVOID)pGSCookiePtr, sizeof(GSCookie), oldProtection, &oldProtection))
{
ThrowLastError();
}
}
Volatile<BOOL> g_bIsGarbageCollectorFullyInitialized = FALSE;
void SetGarbageCollectorFullyInitialized()
{
LIMITED_METHOD_CONTRACT;
g_bIsGarbageCollectorFullyInitialized = TRUE;
}
// Tells whether the garbage collector is fully initialized
// Stronger than IsGCHeapInitialized
BOOL IsGarbageCollectorFullyInitialized()
{
LIMITED_METHOD_CONTRACT;
return g_bIsGarbageCollectorFullyInitialized;
}
// ---------------------------------------------------------------------------
// %%Function: EEStartupHelper
//
// Returns:
// S_OK - On success
//
// Description:
// Reserved to initialize the EE runtime engine explicitly.
// ---------------------------------------------------------------------------
#ifndef IfFailGotoLog
#define IfFailGotoLog(EXPR, LABEL) \
do { \
hr = (EXPR);\
if(FAILED(hr)) { \
STRESS_LOG2(LF_STARTUP, LL_ALWAYS, "%s failed with code %x", #EXPR, hr);\
goto LABEL; \
} \
else \
STRESS_LOG1(LF_STARTUP, LL_ALWAYS, "%s completed", #EXPR);\
} while (0)
#endif
#ifndef IfFailGoLog
#define IfFailGoLog(EXPR) IfFailGotoLog(EXPR, ErrExit)
#endif
#ifdef TARGET_UNIX
void EESocketCleanupHelper(bool isExecutingOnAltStack)
{
CONTRACTL
{
GC_NOTRIGGER;
MODE_ANY;
} CONTRACTL_END;
if (isExecutingOnAltStack)
{
Thread *pThread = GetThreadNULLOk();
if (pThread)
{
pThread->SetExecutingOnAltStack();
}
}
// Close the debugger transport socket first
if (g_pDebugInterface != NULL)
{
g_pDebugInterface->CleanupTransportSocket();
}
// Close the diagnostic server socket.
#ifdef FEATURE_PERFTRACING
DiagnosticServerAdapter::Shutdown();
#endif // FEATURE_PERFTRACING
}
#endif // TARGET_UNIX
void FatalErrorHandler(UINT errorCode, LPCWSTR pszMessage)
{
EEPOLICY_HANDLE_FATAL_ERROR_WITH_MESSAGE(errorCode, pszMessage);
}
void EEStartupHelper()
{
CONTRACTL
{
THROWS;
GC_TRIGGERS;
MODE_ANY;
} CONTRACTL_END;
#ifdef ENABLE_CONTRACTS_IMPL
{
extern void ContractRegressionCheck();
ContractRegressionCheck();
}
#endif
HRESULT hr = S_OK;
static ConfigDWORD breakOnEELoad;
EX_TRY
{
g_fEEInit = true;
// We cache the SystemInfo for anyone to use throughout the life of the EE.
GetSystemInfo(&g_SystemInfo);
CDacPlatformMetadata::Init();
// Set callbacks so that LoadStringRC knows which language our
// threads are in so that it can return the proper localized string.
// TODO: This shouldn't rely on the LCID (id), but only the name
SetResourceCultureCallbacks(GetThreadUICultureNames,
GetThreadUICultureId);
#ifndef TARGET_UNIX
::SetConsoleCtrlHandler(DbgCtrlCHandler, TRUE/*add*/);
#endif
#ifdef HOST_WINDOWS
InitializeOptionalWindowsAPIPointers();
#endif // HOST_WINDOWS
// SString initialization
// This needs to be done before config because config uses SString::Empty()
SString::Startup();
IfFailGo(EEConfig::Setup());
#ifdef HOST_WINDOWS
InitializeCrashDump();
#endif // HOST_WINDOWS
#ifndef TARGET_UNIX
CPUGroupInfo::EnsureInitialized();
#endif // !TARGET_UNIX
// Initialize global configuration settings based on startup flags
// This needs to be done before the EE has started
InitializeStartupFlags();
PendingTypeLoadTable::Init();
IfFailGo(ExecutableAllocator::StaticInitialize(FatalErrorHandler));
Thread::StaticInitialize();
JITInlineTrackingMap::StaticInitialize();
MethodDescBackpatchInfoTracker::StaticInitialize();
CodeVersionManager::StaticInitialize();
TieredCompilationManager::StaticInitialize();
CallCountingManager::StaticInitialize();
OnStackReplacementManager::StaticInitialize();
MethodTable::InitMethodDataCache();
#ifdef TARGET_UNIX
ExecutableAllocator::InitPreferredRange();
#else
{
// Record coreclr.dll geometry
PEDecoder pe(GetClrModuleBase());
g_runtimeLoadedBaseAddress = (SIZE_T)pe.GetBase();
g_runtimeVirtualSize = (SIZE_T)pe.GetVirtualSize();
ExecutableAllocator::InitLazyPreferredRange(g_runtimeLoadedBaseAddress, g_runtimeVirtualSize, GetRandomInt(64));
}
#endif // !TARGET_UNIX
InitThreadManager();
STRESS_LOG0(LF_STARTUP, LL_ALWAYS, "Returned successfully from InitThreadManager");
#ifdef FEATURE_PERFTRACING
// Initialize the event pipe.
EventPipeAdapter::Initialize();
#if defined(TARGET_LINUX)
InitUserEvents();
#endif // TARGET_LINUX
#endif // FEATURE_PERFTRACING
#ifdef TARGET_UNIX
PAL_SetShutdownCallback(EESocketCleanupHelper);
#endif // TARGET_UNIX
#ifdef STRESS_LOG
if (CLRConfig::GetConfigValue(CLRConfig::UNSUPPORTED_StressLog, g_pConfig->StressLog()) != 0) {
unsigned facilities = CLRConfig::GetConfigValue(CLRConfig::INTERNAL_LogFacility, LF_ALL);
unsigned level = CLRConfig::GetConfigValue(CLRConfig::EXTERNAL_LogLevel, LL_INFO1000);
unsigned bytesPerThread = CLRConfig::GetConfigValue(CLRConfig::UNSUPPORTED_StressLogSize, STRESSLOG_CHUNK_SIZE * 4);
unsigned totalBytes = CLRConfig::GetConfigValue(CLRConfig::UNSUPPORTED_TotalStressLogSize, STRESSLOG_CHUNK_SIZE * 1024);
CLRConfigStringHolder logFilename = CLRConfig::GetConfigValue(CLRConfig::UNSUPPORTED_StressLogFilename);
StressLog::Initialize(facilities, level, bytesPerThread, totalBytes, GetClrModuleBase(), logFilename);
g_pStressLog = &StressLog::theLog;
}
#endif
#ifdef FEATURE_PERFTRACING
DiagnosticServerAdapter::Initialize();
DiagnosticServerAdapter::PauseForDiagnosticsMonitor();
#endif // FEATURE_PERFTRACING
#ifdef FEATURE_GDBJIT
// Initialize gdbjit
NotifyGdb::Initialize();
#endif // FEATURE_GDBJIT
#ifdef FEATURE_EVENT_TRACE
// Initialize event tracing early so we can trace CLR startup time events.
InitializeEventTracing();
// Fire the EE startup ETW event
ETWFireEvent(EEStartupStart_V1);
#endif // FEATURE_EVENT_TRACE
InitGSCookie();
Frame::Init();
#ifdef LOGGING
InitializeLogging();
#endif
#ifdef FEATURE_PERFMAP
PerfMap::Initialize();
#endif
#ifdef FEATURE_PGO
PgoManager::Initialize();
#endif
STRESS_LOG0(LF_STARTUP, LL_ALWAYS, "===================EEStartup Starting===================");
#ifndef TARGET_UNIX
IfFailGoLog(EnsureRtlFunctions());
#endif // !TARGET_UNIX
InitEventStore();
if (g_pConfig != NULL)
{
IfFailGoLog(g_pConfig->sync());
}
// Fire the runtime information ETW event
ETW::InfoLog::RuntimeInformation(ETW::InfoLog::InfoStructs::Normal);
if (breakOnEELoad.val(CLRConfig::UNSUPPORTED_BreakOnEELoad) == 1)
{
#ifdef _DEBUG
_ASSERTE(!"Start loading EE!");
#else
DebugBreak();
#endif
}
#ifdef ENABLE_STARTUP_DELAY
PREFIX_ASSUME(NULL != g_pConfig);
if (g_pConfig->StartupDelayMS())
{
ClrSleepEx(g_pConfig->StartupDelayMS(), FALSE);
}
#endif
#if USE_DISASSEMBLER
if ((g_pConfig->GetGCStressLevel() & (EEConfig::GCSTRESS_INSTR_JIT | EEConfig::GCSTRESS_INSTR_NGEN)) != 0)
{
Disassembler::StaticInitialize();
if (!Disassembler::IsAvailable())
{
fprintf(stderr, "External disassembler is not available.\n");
IfFailGo(E_FAIL);
}
}
#endif // USE_DISASSEMBLER
// Monitors, Crsts, and SimpleRWLocks all use the same spin heuristics
// Cache the (potentially user-overridden) values now so they are accessible from asm routines
InitializeSpinConstants();
#ifdef FEATURE_INTERPRETER
Interpreter::Initialize();
#endif // FEATURE_INTERPRETER
StubManager::InitializeStubManagers();
// Set up the cor handle map. This map is used to load assemblies in
// memory instead of using the normal system load
PEImage::Startup();
AccessCheckOptions::Startup();
CoreLibBinder::Startup();
StubLinkerCPU::Init();
StubPrecode::StaticInitialize();
FixupPrecode::StaticInitialize();
InitializeGarbageCollector();
if (!GCHandleUtilities::GetGCHandleManager()->Initialize())
{
IfFailGo(E_OUTOFMEMORY);
}
g_pEEShutDownEvent = new CLREvent();
g_pEEShutDownEvent->CreateManualEvent(FALSE);
VirtualCallStubManager::InitStatic();
// Setup the domains. Threads are started in a default domain.
// Static initialization
SystemDomain::Attach();
// Start up the EE initializing all the global variables
ECall::Init();
COMDelegate::Init();
ExecutionManager::Init();
JitHost::Init();
#ifndef TARGET_UNIX
if (!RegisterOutOfProcessWatsonCallbacks())
{
IfFailGo(E_FAIL);
}
#endif // !TARGET_UNIX
#ifdef DEBUGGING_SUPPORTED
// Initialize the debugging services. This must be done before any
// EE thread objects are created, and before any classes or
// modules are loaded.
InitializeDebugger(); // throws on error
#endif // DEBUGGING_SUPPORTED
#ifdef PROFILING_SUPPORTED
// Initialize the profiling services.
hr = ProfilingAPIUtility::InitializeProfiling();
_ASSERTE(SUCCEEDED(hr));
IfFailGo(hr);
#endif // PROFILING_SUPPORTED
InitializeExceptionHandling();
//
// Install our global exception filter
//
if (!InstallUnhandledExceptionFilter())
{
IfFailGo(E_FAIL);
}
// throws on error
SetupThread();
#ifdef DEBUGGING_SUPPORTED
// Notify debugger once the first thread is created to finish initialization.
if (g_pDebugInterface != NULL)
{
g_pDebugInterface->StartupPhase2(GetThread());
}
#endif
InitPreStubManager();
#ifdef FEATURE_COMINTEROP
InitializeComInterop();
#endif // FEATURE_COMINTEROP
StubHelpers::Init();
// Before setting up the execution manager initialize the first part
// of the JIT helpers.
InitJITHelpers1();
InitJITHelpers2();
SyncBlockCache::Attach();
// Set up the sync block
SyncBlockCache::Start();
// This isn't done as part of InitializeGarbageCollector() above because it
// requires write barriers to have been set up on x86, which happens as part
// of InitJITHelpers1.
hr = g_pGCHeap->Initialize();
if (FAILED(hr))
{
LogErrorToHost("GC heap initialization failed with error 0x%08X", hr);
}
IfFailGo(hr);
#ifdef FEATURE_PERFTRACING
// Finish setting up rest of EventPipe - specifically enable SampleProfiler if it was requested at startup.
// SampleProfiler needs to cooperate with the GC which hasn't fully finished setting up in the first part of the
// EventPipe initialization, so this is done after the GC has been fully initialized.
EventPipeAdapter::FinishInitialize();
#endif // FEATURE_PERFTRACING
GenAnalysis::Initialize();
// This isn't done as part of InitializeGarbageCollector() above because thread
// creation requires AppDomains to have been set up.
FinalizerThread::FinalizerThreadCreate();
// Now we really have fully initialized the garbage collector
SetGarbageCollectorFullyInitialized();
#ifdef DEBUGGING_SUPPORTED
// Make a call to publish the DefaultDomain for the debugger
// This should be done before assemblies/modules are loaded into it (i.e. SystemDomain::Init)
// and after its OK to switch GC modes and synchronize for sending events to the debugger.
// @dbgtodo synchronization: this can probably be simplified in V3
LOG((LF_CORDB | LF_SYNC | LF_STARTUP, LL_INFO1000, "EEStartup: adding default domain 0x%x\n",
SystemDomain::System()->DefaultDomain()));
SystemDomain::System()->PublishAppDomainAndInformDebugger(SystemDomain::System()->DefaultDomain());
#endif
#ifdef HAVE_GCCOVER
MethodDesc::Init();
#endif
Assembly::Initialize();
SystemDomain::System()->Init();
#ifdef PROFILING_SUPPORTED
// <TODO>This is to compensate for the DefaultDomain workaround contained in
// SystemDomain::Attach in which the first user domain is created before profiling
// services can be initialized. Profiling services cannot be moved to before the
// workaround because it needs SetupThread to be called.</TODO>
SystemDomain::NotifyProfilerStartup();
#endif // PROFILING_SUPPORTED
g_fEEInit = false;
SystemDomain::System()->DefaultDomain()->LoadSystemAssemblies();
SystemDomain::System()->DefaultDomain()->SetupSharedStatics();
InitializeThreadStaticData();
#ifdef FEATURE_MINIMETADATA_IN_TRIAGEDUMPS
// retrieve configured max size for the mini-metadata buffer (defaults to 64KB)
g_MiniMetaDataBuffMaxSize = CLRConfig::GetConfigValue(CLRConfig::INTERNAL_MiniMdBufferCapacity);
// align up to GetOsPageSize(), with a maximum of 1 MB
g_MiniMetaDataBuffMaxSize = (DWORD) min(ALIGN_UP(g_MiniMetaDataBuffMaxSize, GetOsPageSize()), (DWORD)(1024 * 1024));
// allocate the buffer. this is never touched while the process is running, so it doesn't
// contribute to the process' working set. it is needed only as a "shadow" for a mini-metadata
// buffer that will be set up and reported / updated in the Watson process (the
// DacStreamsManager class coordinates this)
g_MiniMetaDataBuffAddress = (TADDR) ClrVirtualAlloc(NULL,
g_MiniMetaDataBuffMaxSize, MEM_COMMIT, PAGE_READWRITE);
#endif // FEATURE_MINIMETADATA_IN_TRIAGEDUMPS
g_fEEStarted = TRUE;
g_EEStartupStatus = S_OK;
hr = S_OK;
STRESS_LOG0(LF_STARTUP, LL_ALWAYS, "===================EEStartup Completed===================");
#ifdef _DEBUG
//if g_fEEStarted was false when we loaded the System Module, we did not run ExpandAll on it. In
//this case, make sure we run ExpandAll here. The rationale is that if we Jit before g_fEEStarted
//is true, we can't initialize Com, so we can't jit anything that uses Com types. Also, it's
//probably not safe to Jit while g_fEEStarted is false.
//
//Also, if you run this it's possible we'll call CoInitialize, which defaults to MTA. This might
//mess up an application that uses STA. However, this mode is only supported for certain limited
//jit testing scenarios, so it can live with the limitation.
if (g_pConfig->ExpandModulesOnLoad())
{
SystemDomain::SystemModule()->ExpandAll();
}
#endif // _DEBUG