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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.
// See the LICENSE file in the project root for more information.
// --------------------------------------------------------------------------------
// DomainFile.cpp
//
// --------------------------------------------------------------------------------
#include "common.h"
// --------------------------------------------------------------------------------
// Headers
// --------------------------------------------------------------------------------
#include <shlwapi.h>
#include "security.h"
#include "securitymeta.h"
#include "invokeutil.h"
#include "eeconfig.h"
#include "dynamicmethod.h"
#include "field.h"
#include "dbginterface.h"
#include "eventtrace.h"
#ifdef FEATURE_PREJIT
#include <corcompile.h>
#include "compile.h"
#endif // FEATURE_PREJIT
#include "umthunkhash.h"
#include "peimagelayout.inl"
#if !defined(FEATURE_CORECLR) && !defined(DACCESS_COMPILE) && !defined(CROSSGEN_COMPILE)
#include "policy.h" // for fusion::util::isanyframeworkassembly
#endif
#include "winrthelpers.h"
#ifdef FEATURE_PERFMAP
#include "perfmap.h"
#endif // FEATURE_PERFMAP
BOOL DomainAssembly::IsUnloading()
{
WRAPPER_NO_CONTRACT;
SUPPORTS_DAC;
BOOL fIsUnloading = FALSE;
fIsUnloading = this->GetAppDomain()->IsUnloading();
if (!fIsUnloading)
{
fIsUnloading = m_fDebuggerUnloadStarted;
}
return fIsUnloading;
}
#ifndef DACCESS_COMPILE
DomainFile::DomainFile(AppDomain *pDomain, PEFile *pFile)
: m_pDomain(pDomain),
m_pFile(pFile),
m_pOriginalFile(NULL),
m_pModule(NULL),
m_level(FILE_LOAD_CREATE),
m_pError(NULL),
m_notifyflags(NOT_NOTIFIED),
m_loading(TRUE),
m_pDynamicMethodTable(NULL),
m_pUMThunkHash(NULL),
m_bDisableActivationCheck(FALSE),
m_dwReasonForRejectingNativeImage(0)
{
CONTRACTL
{
CONSTRUCTOR_CHECK;
THROWS; // From CreateHandle
GC_NOTRIGGER;
MODE_ANY;
FORBID_FAULT;
}
CONTRACTL_END;
m_hExposedModuleObject = NULL;
pFile->AddRef();
}
DomainFile::~DomainFile()
{
CONTRACTL
{
DESTRUCTOR_CHECK;
NOTHROW;
GC_TRIGGERS;
MODE_ANY;
}
CONTRACTL_END;
m_pFile->Release();
if(m_pOriginalFile)
m_pOriginalFile->Release();
if (m_pDynamicMethodTable)
m_pDynamicMethodTable->Destroy();
#if defined(FEATURE_MIXEDMODE) && !defined(CROSSGEN_COMPILE)
if (m_pUMThunkHash)
delete m_pUMThunkHash;
#endif
delete m_pError;
}
#endif //!DACCESS_COMPILE
LoaderAllocator * DomainFile::GetLoaderAllocator()
{
CONTRACTL
{
NOTHROW;
GC_NOTRIGGER;
SO_TOLERANT;
MODE_ANY;
}
CONTRACTL_END;
Assembly *pAssembly = GetDomainAssembly()->GetAssembly();
if ((pAssembly != NULL) && (pAssembly->IsCollectible()))
{
return pAssembly->GetLoaderAllocator();
}
else
{
return this->GetAppDomain()->GetLoaderAllocator();
}
}
#ifndef DACCESS_COMPILE
void DomainFile::ReleaseFiles()
{
WRAPPER_NO_CONTRACT;
Module* pModule=GetCurrentModule();
if(pModule)
pModule->StartUnload();
if (m_pFile)
m_pFile->ReleaseIL();
if(m_pOriginalFile)
m_pOriginalFile->ReleaseIL();
if(pModule)
pModule->ReleaseILData();
}
BOOL DomainFile::TryEnsureActive()
{
CONTRACT(BOOL)
{
INSTANCE_CHECK;
THROWS;
GC_TRIGGERS;
}
CONTRACT_END;
BOOL success = TRUE;
EX_TRY
{
EnsureActive();
}
EX_CATCH
{
success = FALSE;
}
EX_END_CATCH(RethrowTransientExceptions);
RETURN success;
}
// Optimization intended for EnsureLoadLevel only
#include <optsmallperfcritical.h>
void DomainFile::EnsureLoadLevel(FileLoadLevel targetLevel)
{
CONTRACT_VOID
{
INSTANCE_CHECK;
THROWS;
GC_TRIGGERS;
}
CONTRACT_END;
TRIGGERSGC ();
if (IsLoading())
{
this->GetAppDomain()->LoadDomainFile(this, targetLevel);
// Enforce the loading requirement. Note that we may have a deadlock in which case we
// may be off by one which is OK. (At this point if we are short of targetLevel we know
// we have done so because of reentrancy contraints.)
RequireLoadLevel((FileLoadLevel)(targetLevel-1));
}
else
ThrowIfError(targetLevel);
RETURN;
}
#include <optdefault.h>
void DomainFile::AttemptLoadLevel(FileLoadLevel targetLevel)
{
CONTRACT_VOID
{
INSTANCE_CHECK;
THROWS;
GC_TRIGGERS;
}
CONTRACT_END;
if (IsLoading())
this->GetAppDomain()->LoadDomainFile(this, targetLevel);
else
ThrowIfError(targetLevel);
RETURN;
}
CHECK DomainFile::CheckLoadLevel(FileLoadLevel requiredLevel, BOOL deadlockOK)
{
CONTRACTL
{
INSTANCE_CHECK;
NOTHROW;
GC_NOTRIGGER;
}
CONTRACTL_END;
if (deadlockOK)
{
#ifndef CROSSGEN_COMPILE
// CheckLoading requires waiting on a host-breakable lock.
// Since this is only a checked-build assert and we've been
// living with it for a while, I'll leave it as is.
//@TODO: CHECK statements are *NOT* debug-only!!!
CONTRACT_VIOLATION(ThrowsViolation|GCViolation|TakesLockViolation);
CHECK(this->GetAppDomain()->CheckLoading(this, requiredLevel));
#endif
}
else
{
CHECK_MSG(m_level >= requiredLevel,
"File not sufficiently loaded");
}
CHECK_OK;
}
void DomainFile::RequireLoadLevel(FileLoadLevel targetLevel)
{
CONTRACT_VOID
{
INSTANCE_CHECK;
THROWS;
GC_TRIGGERS;
}
CONTRACT_END;
if (GetLoadLevel() < targetLevel)
{
ThrowIfError(targetLevel);
ThrowHR(MSEE_E_ASSEMBLYLOADINPROGRESS); // @todo: better exception
}
RETURN;
}
void DomainFile::SetError(Exception *ex)
{
CONTRACT_VOID
{
PRECONDITION(!IsError());
PRECONDITION(ex != NULL);
INSTANCE_CHECK;
THROWS;
GC_TRIGGERS;
POSTCONDITION(IsError());
}
CONTRACT_END;
m_pError = new ExInfo(ex->DomainBoundClone());
GetCurrentModule()->NotifyEtwLoadFinished(ex->GetHR());
if (!IsProfilerNotified())
{
SetProfilerNotified();
#ifdef PROFILING_SUPPORTED
if (GetCurrentModule() != NULL
&& !GetCurrentModule()->GetAssembly()->IsDomainNeutral())
{
// Only send errors for non-shared assemblies; other assemblies might be successfully completed
// in another app domain later.
GetCurrentModule()->NotifyProfilerLoadFinished(ex->GetHR());
}
#endif
}
RETURN;
}
void DomainFile::ThrowIfError(FileLoadLevel targetLevel)
{
CONTRACT_VOID
{
INSTANCE_CHECK;
MODE_ANY;
THROWS;
GC_TRIGGERS;
}
CONTRACT_END;
if (m_level < targetLevel)
{
if (m_pError)
m_pError->Throw();
}
RETURN;
}
CHECK DomainFile::CheckNoError(FileLoadLevel targetLevel)
{
LIMITED_METHOD_CONTRACT;
CHECK(m_level >= targetLevel
|| !IsError());
CHECK_OK;
}
CHECK DomainFile::CheckLoaded()
{
CONTRACTL
{
INSTANCE_CHECK;
NOTHROW;
GC_NOTRIGGER;
MODE_ANY;
}
CONTRACTL_END;
CHECK_MSG(CheckNoError(FILE_LOADED), "DomainFile load resulted in an error");
if (IsLoaded())
CHECK_OK;
// Mscorlib is allowed to run managed code much earlier than other
// assemblies for bootstrapping purposes. This is because it has no
// dependencies, security checks, and doesn't rely on loader notifications.
if (GetFile()->IsSystem())
CHECK_OK;
CHECK_MSG(GetFile()->CheckLoaded(), "PEFile has not been loaded");
CHECK_OK;
}
CHECK DomainFile::CheckActivated()
{
CONTRACTL
{
INSTANCE_CHECK;
NOTHROW;
GC_NOTRIGGER;
MODE_ANY;
}
CONTRACTL_END;
CHECK_MSG(CheckNoError(FILE_ACTIVE), "DomainFile load resulted in an error");
if (IsActive())
CHECK_OK;
// Mscorlib is allowed to run managed code much earlier than other
// assemblies for bootstrapping purposes. This is because it has no
// dependencies, security checks, and doesn't rely on loader notifications.
if (GetFile()->IsSystem())
CHECK_OK;
CHECK_MSG(GetFile()->CheckLoaded(), "PEFile has not been loaded");
CHECK_MSG(IsLoaded(), "DomainFile has not been fully loaded");
CHECK_MSG(m_bDisableActivationCheck || CheckLoadLevel(FILE_ACTIVE), "File has not had execution verified");
CHECK_OK;
}
#endif //!DACCESS_COMPILE
DomainAssembly *DomainFile::GetDomainAssembly()
{
CONTRACTL
{
SUPPORTS_DAC;
NOTHROW;
GC_NOTRIGGER;
SO_TOLERANT;
}
CONTRACTL_END;
#ifdef FEATURE_MULTIMODULE_ASSEMBLIES
if (IsAssembly())
{
return dac_cast<PTR_DomainAssembly>(this);
}
else
{
return dac_cast<PTR_DomainModule>(this)->GetDomainAssembly();
}
#else
_ASSERTE(IsAssembly());
return (DomainAssembly *) this;
#endif // FEATURE_MULTIMODULE_ASSEMBLIES
}
BOOL DomainFile::IsIntrospectionOnly()
{
WRAPPER_NO_CONTRACT;
return GetFile()->IsIntrospectionOnly();
}
// Return true iff the debugger should get notifications about this assembly.
//
// Notes:
// The debuggee may be stopped while a DomainAssmebly is being initialized. In this time window,
// GetAssembly() may be NULL. If that's the case, this function has to return FALSE. Later on, when
// the DomainAssembly is fully initialized, this function will return TRUE. This is the only scenario
// where this function is mutable. In other words, a DomainAssembly can only change from being invisible
// to visible, but NOT vice versa. Once a DomainAssmebly is fully initialized, this function should be
// immutable for an instance of a module. That ensures that the debugger gets consistent
// notifications about it. It this value mutates, than the debugger may miss relevant notifications.
BOOL DomainAssembly::IsVisibleToDebugger()
{
WRAPPER_NO_CONTRACT;
SUPPORTS_DAC;
// If you can't run an assembly, then don't send notifications to the debugger.
// This check includeds IsIntrospectionOnly().
return ((GetAssembly() != NULL) ? GetAssembly()->HasRunAccess() : FALSE);
}
#ifndef DACCESS_COMPILE
#ifdef FEATURE_PREJIT
void DomainFile::ExternalLog(DWORD level, const WCHAR *fmt, ...)
{
WRAPPER_NO_CONTRACT;
va_list args;
va_start(args, fmt);
GetOriginalFile()->ExternalVLog(LF_ZAP, level, fmt, args);
va_end(args);
}
void DomainFile::ExternalLog(DWORD level, const char *msg)
{
WRAPPER_NO_CONTRACT;
GetOriginalFile()->ExternalLog(level, msg);
}
#endif
#ifndef CROSSGEN_COMPILE
//---------------------------------------------------------------------------------------
//
// Returns managed representation of the module (Module or ModuleBuilder).
// Returns NULL if the managed scout was already collected (see code:LoaderAllocator#AssemblyPhases).
//
OBJECTREF DomainFile::GetExposedModuleObject()
{
CONTRACTL
{
INSTANCE_CHECK;
THROWS;
MODE_COOPERATIVE;
GC_TRIGGERS;
}
CONTRACTL_END;
LoaderAllocator * pLoaderAllocator = GetLoaderAllocator();
if (m_hExposedModuleObject == NULL)
{
// Atomically create a handle
LOADERHANDLE handle = pLoaderAllocator->AllocateHandle(NULL);
FastInterlockCompareExchangePointer(&m_hExposedModuleObject, handle, static_cast<LOADERHANDLE>(NULL));
}
if (pLoaderAllocator->GetHandleValue(m_hExposedModuleObject) == NULL)
{
REFLECTMODULEBASEREF refClass = NULL;
// Will be TRUE only if LoaderAllocator managed object was already collected and therefore we should
// return NULL
BOOL fIsLoaderAllocatorCollected = FALSE;
GCPROTECT_BEGIN(refClass);
if (GetFile()->IsDynamic())
{
refClass = (REFLECTMODULEBASEREF) AllocateObject(MscorlibBinder::GetClass(CLASS__MODULE_BUILDER));
}
else
{
refClass = (REFLECTMODULEBASEREF) AllocateObject(MscorlibBinder::GetClass(CLASS__MODULE));
}
refClass->SetModule(m_pModule);
// Attach the reference to the assembly to keep the LoaderAllocator for this collectible type
// alive as long as a reference to the module is kept alive.
if (GetModule()->GetAssembly() != NULL)
{
OBJECTREF refAssembly = GetModule()->GetAssembly()->GetExposedObject();
if ((refAssembly == NULL) && GetModule()->GetAssembly()->IsCollectible())
{
fIsLoaderAllocatorCollected = TRUE;
}
refClass->SetAssembly(refAssembly);
}
pLoaderAllocator->CompareExchangeValueInHandle(m_hExposedModuleObject, (OBJECTREF)refClass, NULL);
GCPROTECT_END();
if (fIsLoaderAllocatorCollected)
{ // The LoaderAllocator managed object was already collected, we cannot re-create it
// Note: We did not publish the allocated Module/ModuleBuilder object, it will get collected
// by GC
return NULL;
}
}
return pLoaderAllocator->GetHandleValue(m_hExposedModuleObject);
} // DomainFile::GetExposedModuleObject
#endif // CROSSGEN_COMPILE
BOOL DomainFile::DoIncrementalLoad(FileLoadLevel level)
{
STANDARD_VM_CONTRACT;
if (IsError())
return FALSE;
Thread *pThread;
pThread = GetThread();
_ASSERTE(pThread);
INTERIOR_STACK_PROBE_FOR(pThread, 8);
switch (level)
{
case FILE_LOAD_BEGIN:
Begin();
break;
case FILE_LOAD_FIND_NATIVE_IMAGE:
#ifdef FEATURE_PREJIT
FindNativeImage();
#endif
break;
case FILE_LOAD_VERIFY_NATIVE_IMAGE_DEPENDENCIES:
#ifdef FEATURE_PREJIT
VerifyNativeImageDependencies();
#endif
break;
case FILE_LOAD_ALLOCATE:
Allocate();
break;
case FILE_LOAD_ADD_DEPENDENCIES:
AddDependencies();
break;
case FILE_LOAD_PRE_LOADLIBRARY:
PreLoadLibrary();
break;
case FILE_LOAD_LOADLIBRARY:
LoadLibrary();
break;
case FILE_LOAD_POST_LOADLIBRARY:
PostLoadLibrary();
break;
case FILE_LOAD_EAGER_FIXUPS:
EagerFixups();
break;
case FILE_LOAD_VTABLE_FIXUPS:
VtableFixups();
break;
case FILE_LOAD_DELIVER_EVENTS:
DeliverSyncEvents();
break;
case FILE_LOADED:
FinishLoad();
break;
case FILE_LOAD_VERIFY_EXECUTION:
VerifyExecution();
break;
case FILE_ACTIVE:
Activate();
break;
default:
UNREACHABLE();
}
END_INTERIOR_STACK_PROBE;
#ifdef FEATURE_MULTICOREJIT
{
Module * pModule = GetModule();
if (pModule != NULL) // Should not triggle assert when module is NULL
{
this->GetAppDomain()->GetMulticoreJitManager().RecordModuleLoad(pModule, level);
}
}
#endif
return TRUE;
}
#ifdef FEATURE_PREJIT
void DomainFile::VerifyNativeImageDependencies(bool verifyOnly)
{
CONTRACTL
{
INSTANCE_CHECK;
STANDARD_VM_CHECK;
PRECONDITION(verifyOnly || (m_pDomain->GetDomainFileLoadLevel(this) ==
FILE_LOAD_FIND_NATIVE_IMAGE));
}
CONTRACTL_END;
// This function gets called multiple times. The first call is the real work.
// Subsequent calls are only to verify that everything still looks OK.
if (!verifyOnly)
ClearNativeImageStress();
if (!m_pFile->HasNativeImage())
{
CheckZapRequired();
return;
}
{
// Go through native dependencies & make sure they still have their prejit images after
// the security check.
// NOTE: we could theoretically do this without loading the dependencies, if we cache the
// COR_TRUST structures from the dependencies in the version information.
//
// Verify that all of our hard dependencies are loaded at the right base address.
// If not, abandon prejit image (or fix ours up)
// Also, if there are any hard dependencies, then our native image also needs to be
// loaded at the right base address
// Note: we will go through all of our dependencies, call Load on them, and check the base
// addresses & identity.
// It is important to note that all of those dependencies are also going to do the
// same thing, so we might conceivably check a base address as OK, and then have that image
// abandoned by that assembly during its VerifyNativeImageDependencies phase.
// However, we avoid this problem since the hard depedencies stored are a closure of the
// hard dependencies of an image. This effectively means that our check here is a superset
// of the check that the dependencies will perform. Even if we hit a dependency loop, we
// will still guarantee that we've examined all of our dependencies.
ReleaseHolder<PEImage> pNativeImage = m_pFile->GetNativeImageWithRef();
if(pNativeImage==NULL)
{
CheckZapRequired();
return;
}
PEImageLayout* pNativeLayout = pNativeImage->GetLoadedLayout();
// reuse same codepath for both manifest and non-manifest modules
ReleaseHolder<PEImage> pManifestNativeImage(NULL);
PEFile* pManifestFile = m_pFile;
PEImageLayout* pManifestNativeLayout = pNativeLayout;
if (!IsAssembly())
{
pManifestFile = GetDomainAssembly()->GetCurrentAssembly()
->GetManifestModule()->GetFile();
pManifestNativeImage = pManifestFile->GetNativeImageWithRef();
if (pManifestNativeImage == NULL)
{
ExternalLog(LL_ERROR, "Rejecting native image because there is no "
"ngen image for manifest module. Check why the manifest module "
"does not have an ngen image");
m_dwReasonForRejectingNativeImage = ReasonForRejectingNativeImage_NoNiForManifestModule;
STRESS_LOG3(LF_ZAP,LL_INFO100,"Rejecting native file %p, because its manifest module %p has no NI - reason 0x%x\n",pNativeImage.GetValue(),pManifestFile,m_dwReasonForRejectingNativeImage);
goto NativeImageRejected;
}
return;
}
COUNT_T cDependencies;
CORCOMPILE_DEPENDENCY *pDependencies = pManifestNativeLayout->GetNativeDependencies(&cDependencies);
LOG((LF_ZAP, LL_INFO100, "ZAP: Checking native image dependencies for %S.\n",
pNativeImage->GetPath().GetUnicode()));
for (COUNT_T iDependency = 0; iDependency < cDependencies; iDependency++)
{
CORCOMPILE_DEPENDENCY *pDependency = &(pDependencies[iDependency]);
// Later, for domain neutral assemblies, we will also want to verify security policy
// in such cases, the prejit image should store the publisher info for the dependencies
// for us.
// If this is not a hard-bound dependency, then skip to the next dependency
if (pDependency->signNativeImage == INVALID_NGEN_SIGNATURE)
continue;
#ifdef FEATURE_CORECLR // hardbinding
//
// CoreCLR hard binds to mscorlib.dll only. Avoid going through the full load.
//
#ifdef _DEBUG
AssemblySpec name;
name.InitializeSpec(pDependency->dwAssemblyRef,
((pManifestNativeImage != NULL) ? pManifestNativeImage : pNativeImage)->GetNativeMDImport(),
GetDomainAssembly());
_ASSERTE(name.IsMscorlib());
#endif
PEAssembly * pDependencyFile = SystemDomain::SystemFile();
#else // FEATURE_CORECLR
//
// Load the manifest file for the given name assembly spec.
//
AssemblySpec name;
name.InitializeSpec(pDependency->dwAssemblyRef,
((pManifestNativeImage != NULL) ? pManifestNativeImage : pNativeImage)->GetNativeMDImport(),
GetDomainAssembly());
if (this->GetAppDomain()->IsCompilationDomain())
{
//
// Allow transitive closure of hardbound dependecies to be loaded during ngen.
//
DomainAssembly * pDependencyAssembly = name.LoadDomainAssembly(FILE_LOAD_FIND_NATIVE_IMAGE);
pDependencyAssembly->GetFile()->SetSafeToHardBindTo();
}
DomainAssembly * pDependencyAssembly = NULL;
{
// We are about to validate the hard-bound dependencies of the assembly being loaded. The invariant of being hard-bound states
// that each hard-bound dependency must have its NI image to be valid and available for loading and this is done recursively for each
// hard-bound dependency.
//
// The validity (and presence) of the NI image happens in FILE_LOAD_ALLOCATE stage of assembly load, which is the next stage in assembly loading,
// and not the current stage (FILE_LOAD_VERIFY_NATIVE_DEPENDENCIES). In FILE_LOAD_ALLOCATE, we do sharing checks, closure validation, redirection policy application, etc
// before computing if a NI is available and if it is, whether it is valid or not.
//
// However, we need to know about validity of NI in the current(and earlier) stage. As a result, we will temporarily set the assembly load limit (defined as the maximum
// load level till which recursive assembly load can execute) to be FILE_LOAD_ALLOCATE if we have been invoked to validate the NI dependencies for the first time.
//
// A valid concern at this point is that we would allow to load a dependency at a load stage higher than its dependent assembly as it could crete cycles. This concern is
// alleviated since we are doing this override (of the load stage) only for hard-bound dependencies and NGEN is responsible for ensuring that there are no cycles.
//
// As a result, once the dependency load returns, we will know for sure if the dependency has a valid NI or not.
OVERRIDE_LOAD_LEVEL_LIMIT(verifyOnly ? FILE_LOADED : FILE_LOAD_ALLOCATE);
pDependencyAssembly = name.LoadDomainAssembly(FILE_LOADED);
}
PEAssembly * pDependencyFile = pDependencyAssembly->GetFile();
#endif // FEATURE_CORECLR
ReleaseHolder<PEImage> pDependencyNativeImage = pDependencyFile->GetNativeImageWithRef();
if (pDependencyNativeImage == NULL)
{
ExternalLog(LL_ERROR, W("Rejecting native image because dependency %s is not native"),
pDependencyFile->GetPath().GetUnicode());
m_dwReasonForRejectingNativeImage = ReasonForRejectingNativeImage_DependencyNotNative;
STRESS_LOG3(LF_ZAP,LL_INFO100,"Rejecting native file %p, because dependency %p is not NI - reason 0x%x\n",pNativeImage.GetValue(),pDependencyFile,m_dwReasonForRejectingNativeImage);
goto NativeImageRejected;
}
#ifndef FEATURE_FUSION // Fusion does this verification at native binding time.
PTR_PEImageLayout pDependencyNativeLayout = pDependencyNativeImage->GetLoadedLayout();
// Assert that the native image signature is as expected
// Fusion will ensure this
CORCOMPILE_VERSION_INFO * pDependencyNativeVersion =
pDependencyNativeLayout->GetNativeVersionInfo();
LoggablePEAssembly logAsm(pDependencyFile);
if (!RuntimeVerifyNativeImageDependency(pDependency, pDependencyNativeVersion, &logAsm))
goto NativeImageRejected;
#endif
}
LOG((LF_ZAP, LL_INFO100, "ZAP: Native image dependencies for %S OK.\n",
pNativeImage->GetPath().GetUnicode()));
return;
}
NativeImageRejected:
m_pFile->ClearNativeImage();
m_pFile->SetCannotUseNativeImage();
CheckZapRequired();
return;
}
BOOL DomainFile::IsZapRequired()
{
CONTRACTL
{
INSTANCE_CHECK;
THROWS;
GC_TRIGGERS;
MODE_ANY;
INJECT_FAULT(COMPlusThrowOM(););
}
CONTRACTL_END;
if (!m_pFile->HasMetadata() || !g_pConfig->RequireZap(GetSimpleName()))
return FALSE;
#if defined(_DEBUG) && defined(FEATURE_TREAT_NI_AS_MSIL_DURING_DIAGNOSTICS)
// If we're intentionally treating NIs as if they were MSIL assemblies, and the test
// is flexible enough to accept that (e.g., complus_zaprequired=2), then zaps are not
// required (i.e., it's ok for m_pFile->m_nativeImage to be NULL), but only if we
// loaded an actual NI to be treated as an IL assembly
if (PEFile::ShouldTreatNIAsMSIL())
{
// Since the RequireZap() call above returned true, we know that some level of
// zap requiredness was configured
_ASSERTE(g_pConfig->RequireZaps() != EEConfig::REQUIRE_ZAPS_NONE);
// If config uses this special value (2), zaps are not required, so long as
// we're using an actual NI as IL
if ((g_pConfig->RequireZaps() == EEConfig::REQUIRE_ZAPS_ALL_JIT_OK) &&
m_pFile->HasOpenedILimage() &&
m_pFile->GetOpenedILimage()->HasNativeHeader())
{
return FALSE;
}
}
#endif // defined(_DEBUG) && defined(FEATURE_TREAT_NI_AS_MSIL_DURING_DIAGNOSTICS)
// Does this look like a resource-only assembly? We assume an assembly is resource-only
// if it contains no TypeDef (other than the <Module> TypeDef) and no MethodDef.
// Note that pMD->GetCountWithTokenKind(mdtTypeDef) doesn't count the <Module> type.
IMDInternalImportHolder pMD = m_pFile->GetMDImport();
if (pMD->GetCountWithTokenKind(mdtTypeDef) == 0 && pMD->GetCountWithTokenKind(mdtMethodDef) == 0)
return FALSE;
DomainAssembly * pDomainAssembly = GetDomainAssembly();
// If the manifest module does not have an ngen image, the non-manifest
// modules cannot either
if (m_pFile->IsModule() && !pDomainAssembly->GetFile()->CanUseNativeImage())
m_pFile->SetCannotUseNativeImage();
// Some cases are not supported by design. They can never have a native image.
// So ignore such cases
if (!m_pFile->CanUseNativeImage() &&
g_pConfig->RequireZaps() == EEConfig::REQUIRE_ZAPS_SUPPORTED)
return FALSE;
#ifdef FEATURE_NATIVE_IMAGE_GENERATION
if (IsCompilationProcess())
{
// Ignore the assembly being ngened.
bool fileIsBeingNGened = false;
if (this->GetAppDomain()->IsCompilationDomain())
{
Assembly * assemblyBeingNGened = this->GetAppDomain()->ToCompilationDomain()->GetTargetAssembly();
if (assemblyBeingNGened == NULL || assemblyBeingNGened == pDomainAssembly->GetCurrentAssembly())
fileIsBeingNGened = true;
}
else if (IsSystem())
{
// mscorlib gets loaded before the CompilationDomain gets created.
// However, we may be ngening mscorlib itself
fileIsBeingNGened = true;
}
if (fileIsBeingNGened)
return FALSE;
}
#endif
return TRUE;
}
void DomainFile::CheckZapRequired()
{
CONTRACTL
{
INSTANCE_CHECK;
THROWS;
GC_TRIGGERS;
MODE_ANY;
INJECT_FAULT(COMPlusThrowOM(););
}
CONTRACTL_END;
if (m_pFile->HasNativeImage() || !IsZapRequired())
return;
#ifdef FEATURE_READYTORUN
if(m_pFile->GetLoaded()->HasReadyToRunHeader())
return;
#endif
// Flush any log messages
GetFile()->FlushExternalLog();
StackSString ss;
ss.Printf("ZapRequire: Could not get native image for %s.\n"
"Use FusLogVw.exe to check the reason.",
GetSimpleName());
#if defined(_DEBUG)
// Assert as some test may not check their error codes well. So throwing an
// exception may not cause a test failure (as it should).
StackScratchBuffer scratch;
DbgAssertDialog(__FILE__, __LINE__, (char*)ss.GetUTF8(scratch));
#endif // defined(_DEBUG)
COMPlusThrowNonLocalized(kFileNotFoundException, ss.GetUnicode());
}
// Discarding an ngen image can cause problems. For more coverage,
// this stress-mode discards ngen images even if not needed.
void DomainFile::ClearNativeImageStress()
{
WRAPPER_NO_CONTRACT;
#ifdef _DEBUG
static ConfigDWORD clearNativeImageStress;
DWORD stressPercentage = clearNativeImageStress.val(CLRConfig::INTERNAL_clearNativeImageStress);
_ASSERTE(stressPercentage <= 100);
if (stressPercentage == 0 || !GetFile()->HasNativeImage())
return;
// Note that discarding a native image can affect dependencies. So its not enough
// to only check DomainFile::IsZapRequired() here.
if (g_pConfig->RequireZaps() != EEConfig::REQUIRE_ZAPS_NONE)
return;
// Its OK to ClearNativeImage even for a shared assembly, as the current PEFile will
// be discarded if we decide to share the assembly. However, we always use the same
// PEFile for the system assembly. So discarding the native image in the current
// AppDomain will actually affect the system assembly in the shared domain, and other
// appdomains may have already committed to using its ngen image.
if (GetFile()->IsSystem() && !this->GetAppDomain()->IsDefaultDomain())
return;
if (g_IBCLogger.InstrEnabled())
return;
ULONG hash = HashStringA(GetSimpleName());
// Hash in the FileLoadLevel so that we make a different decision for every level.
FileLoadLevel fileLoadLevel = m_pDomain->GetDomainFileLoadLevel(this);
hash ^= ULONG(fileLoadLevel);
// We do not discard native images after this level
_ASSERTE(fileLoadLevel < FILE_LOAD_VERIFY_NATIVE_IMAGE_DEPENDENCIES);
// Different app-domains should make different decisions
hash ^= HashString(this->GetAppDomain()->GetFriendlyName());
#ifdef FEATURE_NATIVE_IMAGE_GENERATION
// Since DbgRandomOnHashAndExe() is not so random under ngen.exe, also
// factor in the module being compiled
if (this->GetAppDomain()->IsCompilationDomain())
{
Module * module = this->GetAppDomain()->ToCompilationDomain()->GetTargetModule();
// Has the target module been set yet?
if (module)
hash ^= HashStringA(module->GetSimpleName());
}
#endif
if (DbgRandomOnHashAndExe(hash, float(stressPercentage)/100))
{
GetFile()->SetCannotUseNativeImage();
GetFile()->ClearNativeImage();
ExternalLog(LL_ERROR, "Rejecting native image for **clearNativeImageStress**");
}
#endif
}
#endif // FEATURE_PREJIT
void DomainFile::PreLoadLibrary()
{
CONTRACTL
{
INSTANCE_CHECK;
STANDARD_VM_CHECK;
}
CONTRACTL_END;
// Check skip verification for loading if required
if (!GetFile()->CanLoadLibrary())
{
DomainAssembly* pDomainAssembly = GetDomainAssembly();
if (pDomainAssembly->GetSecurityDescriptor()->IsResolved())
{
if (Security::CanSkipVerification(pDomainAssembly))
GetFile()->SetSkipVerification();
}
else
{
AppDomain *pAppDomain = this->GetAppDomain();
PEFile *pFile = GetFile();
_ASSERTE(pFile != NULL);
PEImage *pImage = pFile->GetILimage();
_ASSERTE(pImage != NULL);
_ASSERTE(!pImage->IsFile());
if (pImage->HasV1Metadata())
{
// In V1 case, try to derive SkipVerification status from parents
do
{
PEAssembly * pAssembly = pFile->GetAssembly();
if (pAssembly == NULL)
break;
pFile = pAssembly->GetCreator();
if (pFile != NULL)
{
pAssembly = pFile->GetAssembly();
// Find matching DomainAssembly for the given PEAsssembly
// Perf: This does not scale
AssemblyIterationFlags flags =
(AssemblyIterationFlags) (kIncludeLoaded | kIncludeLoading | kIncludeExecution);
AppDomain::AssemblyIterator i = pAppDomain->IterateAssembliesEx(flags);
CollectibleAssemblyHolder<DomainAssembly *> pDomainAssembly;
while (i.Next(pDomainAssembly.This()))
{
if ((pDomainAssembly != NULL) && (pDomainAssembly->GetFile() == pAssembly))
{
break;
}
}
if (pDomainAssembly != NULL)
{
if (pDomainAssembly->GetSecurityDescriptor()->IsResolved())
{
if (Security::CanSkipVerification(pDomainAssembly))
{
GetFile()->SetSkipVerification();
break;
}
}
}
else
{
// Potential Bug: Unable to find DomainAssembly for given PEAssembly
// In retail build gracefully exit loop
_ASSERTE(pDomainAssembly != NULL);
break;
}
}
}
while (pFile != NULL);
}
}
}
} // DomainFile::PreLoadLibrary
// Note that this is the sole loading function which must be called OUTSIDE THE LOCK, since
// it will potentially involve the OS loader lock.
void DomainFile::LoadLibrary()
{
CONTRACTL
{
INSTANCE_CHECK;
STANDARD_VM_CHECK;
}
CONTRACTL_END;
Thread::LoadingFileHolder holder(GetThread());
GetThread()->SetLoadingFile(this);
GetFile()->LoadLibrary();
}
void DomainFile::PostLoadLibrary()
{
CONTRACTL
{
INSTANCE_CHECK;
// Note that GetFile()->LoadLibrary must be called before this OUTSIDE OF THE LOCKS
PRECONDITION(GetFile()->CheckLoaded());
STANDARD_VM_CHECK;
}
CONTRACTL_END;
#ifdef FEATURE_PREJIT
if (GetFile()->HasNativeImage())
{
InsertIntoDomainFileWithNativeImageList();
}
#endif
#ifdef PROFILING_SUPPORTED
// After this point, it is possible to load types.
// We need to notify the profiler now because the profiler may need to inject methods into
// the module, and to do so reliably, it must have the chance to do so before
// any types are loaded from the module.
//
// In the past we only allowed injecting types/methods on non-NGEN images so notifying here
// worked ok, but for NGEN images this is pretty ugly. Rejitting often occurs in this callback,
// but then during fixup the results of LoadedMethodDesc iterator would change and we would
// need to re-iterate everything. Aside from Rejit other code often wasn't designed to handle
// running before Fixup. A concrete example VS recently hit, calling GetClassLayout using
// a MethodTable which doesn't need restore but its parent pointer isn't fixed up yet.
// We've already set the rules so that profilers can't modify the member list of types in NGEN images
// so it doesn't matter if types are pre-loaded. We only need the guarantee that code for the
// loaded types won't execute yet. For NGEN images we deliver the load notification in
// FILE_LOAD_DELIVER_EVENTS.
if (!GetFile()->HasNativeImage())
{
if (!IsProfilerNotified())
{
SetProfilerNotified();
GetCurrentModule()->NotifyProfilerLoadFinished(S_OK);
}
}
#endif
}
void DomainFile::AddDependencies()
{
STANDARD_VM_CONTRACT;
#ifdef FEATURE_PREJIT
#ifdef FEATURE_CORECLR // hardbinding
//
// CoreCLR hard binds to mscorlib.dll only. No need to track hardbound dependencies.
//
#else
// Add hard bindings as unconditional dependencies
if (GetFile()->HasNativeImage() && GetCurrentModule()->HasNativeImage() && IsAssembly())
{
PEImage *pNativeImage = GetFile()->GetPersistentNativeImage();
PEImageLayout *pNativeLayout = pNativeImage->GetLoadedLayout();
COUNT_T cDependencies;
CORCOMPILE_DEPENDENCY *pDependencies = pNativeLayout->GetNativeDependencies(&cDependencies);
CORCOMPILE_DEPENDENCY *pDependenciesEnd = pDependencies + cDependencies;
while (pDependencies < pDependenciesEnd)
{
if (pDependencies->signNativeImage != INVALID_NGEN_SIGNATURE)
{
//
// Load the manifest file for the given name assembly spec.
//
AssemblySpec name;
name.InitializeSpec(pDependencies->dwAssemblyRef,
pNativeImage->GetNativeMDImport(),
GetDomainAssembly());
DomainAssembly *pDependency = name.LoadDomainAssembly(FILE_LOADED);
// Right now we only support hard binding to other manifest modules so we don't
// need to consider the other module cases
Module *pModule = pDependency->GetModule();
// Add hard binding as an unconditional active dependency
STRESS_LOG4(LF_CODESHARING,LL_INFO100,"unconditional dependency %p %p %i %i\n",
GetFile(),GetCurrentModule(),GetFile()->HasNativeImage(),GetCurrentModule()->HasNativeImage());
if(!pModule->IsSystem())
GetCurrentModule()->AddActiveDependency(pModule, TRUE);
}
pDependencies++;
}
}
#endif // FEATURE_CORECLR
#endif // FEATURE_PREJIT
}
void DomainFile::EagerFixups()
{
WRAPPER_NO_CONTRACT;
#ifdef FEATURE_PREJIT
if (IsIntrospectionOnly())
return;
if (GetCurrentModule()->HasNativeImage())
{
GetCurrentModule()->RunEagerFixups();
}
#ifdef FEATURE_READYTORUN
else
if (GetCurrentModule()->IsReadyToRun())
{
#ifndef CROSSGEN_COMPILE
GetCurrentModule()->RunEagerFixups();
#endif
PEImageLayout * pLayout = GetCurrentModule()->GetReadyToRunInfo()->GetImage();
TADDR base = dac_cast<TADDR>(pLayout->GetBase());
ExecutionManager::AddCodeRange(base, base + (TADDR)pLayout->GetVirtualSize(),
ExecutionManager::GetReadyToRunJitManager(),
RangeSection::RANGE_SECTION_READYTORUN,
GetCurrentModule() /* (void *)pLayout */);
}
#endif // FEATURE_READYTORUN
#endif // FEATURE_PREJIT
}
void DomainFile::VtableFixups()
{
WRAPPER_NO_CONTRACT;
#if defined(FEATURE_MIXEDMODE) && !defined(CROSSGEN_COMPILE)
if (!GetCurrentModule()->IsResource())
GetCurrentModule()->FixupVTables();
#endif
}
void DomainFile::FinishLoad()
{
CONTRACTL
{
INSTANCE_CHECK;
STANDARD_VM_CHECK;
}
CONTRACTL_END;
#ifdef FEATURE_PREJIT
if (m_pFile->HasNativeImage())
{
#ifdef FEATURE_FUSION
// <REVISIT_TODO>Because of bug 112034, we may commit to a native image even though
// we should not have.</REVISIT_TODO>
// #ifdef _DEBUG
// Verify that the native image dependencies are still valid
// Since we had already committed to using a native image, they cannot
// be invalidated
VerifyNativeImageDependencies(true);
_ASSERTE(m_pFile->HasNativeImage());
if (!m_pFile->HasNativeImage())
{
STRESS_LOG1(LF_CODESHARING, LL_FATALERROR, "Incorrectly committed to using native image for %S",
m_pFile->GetPath().GetUnicode());
EEPOLICY_HANDLE_FATAL_ERROR(COR_E_EXECUTIONENGINE);
}
// #endif
#endif // FEATURE_FUSION
LOG((LF_ZAP, LL_INFO10, "Using native image %S.\n", m_pFile->GetPersistentNativeImage()->GetPath().GetUnicode()));
ExternalLog(LL_INFO10, "Native image successfully used.");
// Inform metadata that it has been loaded from a native image
// (and so there was an opportunity to check for or fix inconsistencies in the original IL metadata)
m_pFile->GetMDImport()->SetVerifiedByTrustedSource(TRUE);
}
// Are we absolutely required to use a native image?
CheckZapRequired();
#if defined(FEATURE_CORECLR) && defined(FEATURE_COMINTEROP)
// If this is a winmd file, ensure that the ngen reference namespace is loadable.
// This is necessary as on the phone we don't check ngen image dependencies, and thus we can get in a situation
// where a winmd is loaded as a dependency of an ngen image, but the type used to build cross module references
// in winmd files isn't loaded.
if (GetFile()->AsAssembly()->IsWindowsRuntime() && GetFile()->HasHostAssembly())
{
IMDInternalImport *pImport = GetFile()->GetPersistentMDImport();
LPCSTR szNameSpace;
LPCSTR szTypeName;
// It does not make sense to pass the file name to recieve fake type name for empty WinMDs, because we would use the name
// for binding in next call to BindAssemblySpec which would fail for fake WinRT type name
// We will throw/return the error instead and the caller will recognize it and react to it by not creating the ngen image -
// see code:Zapper::ComputeDependenciesInCurrentDomain
if (SUCCEEDED(::GetFirstWinRTTypeDef(pImport, &szNameSpace, &szTypeName, NULL, NULL)))
{
// Build assembly spec to describe binding to that WinRT type.
AssemblySpec spec;
IfFailThrow(spec.Init("WindowsRuntimeAssemblyName, ContentType=WindowsRuntime"));
spec.SetWindowsRuntimeType(szNameSpace, szTypeName);
// Bind to assembly using the CLRPriv binder infrastructure. (All WinRT loads are done through CLRPriv binders
ReleaseHolder<IAssemblyName> pAssemblyName;
IfFailThrow(spec.CreateFusionName(&pAssemblyName, FALSE, TRUE));
ReleaseHolder<ICLRPrivAssembly> pPrivAssembly;
IfFailThrow(GetFile()->GetHostAssembly()->BindAssemblyByName(pAssemblyName, &pPrivAssembly));
// Verify that we found this. If this invariant doesn't hold, then the ngen images that reference this winmd are be invalid.
// ALSO, this winmd file is invalid as it doesn't follow spec about how it is distributed.
if (GetAppDomain()->FindAssembly(pPrivAssembly) != this)
{
ThrowHR(COR_E_BADIMAGEFORMAT);
}
}
}
#endif // defined(FEATURE_CORECLR) && defined(FEATURE_COMINTEROP)
#endif // FEATURE_PREJIT
// Flush any log messages
#ifdef FEATURE_PREJIT
GetFile()->FlushExternalLog();
#endif
// Must set this a bit prematurely for the DAC stuff to work
m_level = FILE_LOADED;
// Now the DAC can find this module by enumerating assemblies in a domain.
DACNotify::DoModuleLoadNotification(m_pModule);
#if defined(DEBUGGING_SUPPORTED) && !defined(DACCESS_COMPILE)
if (IsDebuggerNotified() && (g_pDebugInterface != NULL))
{
// We already notified dbgapi that this module was loading (via LoadModule()).
// Now let the dbgapi know the module has reached FILE_LOADED, so it can do any
// processing that needs to wait until this stage (e.g., binding breakpoints in
// NGENd generics).
g_pDebugInterface->LoadModuleFinished(m_pModule, m_pDomain);
}
#endif // defined(DEBUGGING_SUPPORTED) && !defined(DACCESS_COMPILE)
// Set a bit to indicate that the module has been loaded in some domain, and therefore
// typeloads can involve types from this module. (Used for candidate instantiations.)
GetModule()->SetIsReadyForTypeLoad();
#ifdef FEATURE_PERFMAP
// Notify the perfmap of the IL image load.
PerfMap::LogImageLoad(m_pFile);
#endif
}
void DomainFile::VerifyExecution()
{
CONTRACT_VOID
{
INSTANCE_CHECK;
PRECONDITION(IsLoaded());
STANDARD_VM_CHECK;
}
CONTRACT_END;
if (GetModule()->IsIntrospectionOnly())
{
// Throw an exception
COMPlusThrow(kInvalidOperationException, IDS_EE_CODEEXECUTION_IN_INTROSPECTIVE_ASSEMBLY);
}
if (GetModule()->GetAssembly()->IsSIMDVectorAssembly() &&
!GetModule()->GetAssembly()->GetSecurityDescriptor()->IsFullyTrusted())
{
COMPlusThrow(kFileLoadException, IDS_EE_SIMD_PARTIAL_TRUST_DISALLOWED);
}
if(GetFile()->PassiveDomainOnly())
{
// Remove path - location must be hidden for security purposes
LPCWSTR path=GetFile()->GetPath();
LPCWSTR pStart = wcsrchr(path, '\\');
if (pStart != NULL)
pStart++;
else
pStart = path;
COMPlusThrow(kInvalidOperationException, IDS_EE_CODEEXECUTION_ASSEMBLY_FOR_PASSIVE_DOMAIN_ONLY,pStart);
}
RETURN;
}
void DomainFile::Activate()
{
CONTRACT_VOID
{
INSTANCE_CHECK;
PRECONDITION(IsLoaded());
STANDARD_VM_CHECK;
}
CONTRACT_END;
// If we are a module, ensure we've activated the assembly first.
if (!IsAssembly())
{
GetDomainAssembly()->EnsureActive();
}
else
{
// We cannot execute any code in this assembly until we know what exception plan it is on.
// At the point of an exception's stack-crawl it is too late because we cannot tolerate a GC.
// See PossiblyUnwrapThrowable and its callers.
_ASSERTE(GetLoadedModule() == GetDomainAssembly()->GetLoadedAssembly()->GetManifestModule());
GetLoadedModule()->IsRuntimeWrapExceptions();
}
// Now activate any dependencies.
// This will typically cause reentrancy of course.
if (!IsSingleAppDomain())
{
// increment the counter (see the comment in Module::AddActiveDependency)
GetModule()->IncrementNumberOfActivations();
#ifdef FEATURE_LOADER_OPTIMIZATION
AppDomain *pDomain = this->GetAppDomain();
Module::DependencyIterator i = GetCurrentModule()->IterateActiveDependencies();
STRESS_LOG2(LF_LOADER, LL_INFO100,"Activating module %p in AD %i",GetCurrentModule(),pDomain->GetId().m_dwId);
while (i.Next())
{
Module *pModule = i.GetDependency();
DomainFile *pDomainFile = pModule->FindDomainFile(pDomain);
if (pDomainFile == NULL)
pDomainFile = pDomain->LoadDomainNeutralModuleDependency(pModule, FILE_LOADED);
STRESS_LOG3(LF_LOADER, LL_INFO100,"Activating dependency %p -> %p, unconditional=%i",GetCurrentModule(),pModule,i.IsUnconditional());
if (i.IsUnconditional())
{
// Let any failures propagate
pDomainFile->EnsureActive();
}
else
{
// Enable triggers if we fail here
if (!pDomainFile->TryEnsureActive())
GetCurrentModule()->EnableModuleFailureTriggers(pModule, this->GetAppDomain());
}
STRESS_LOG3(LF_LOADER, LL_INFO100,"Activated dependency %p -> %p, unconditional=%i",GetCurrentModule(),pModule,i.IsUnconditional());
}
#endif
}
#ifndef CROSSGEN_COMPILE
if (m_pModule->CanExecuteCode())
{
//
// Now call the module constructor. Note that this might cause reentrancy;
// this is fine and will be handled by the class cctor mechanism.
//
MethodTable *pMT = m_pModule->GetGlobalMethodTable();
if (pMT != NULL)
{
pMT->CheckRestore();
m_bDisableActivationCheck=TRUE;
pMT->CheckRunClassInitThrowing();
}
#ifdef FEATURE_CORECLR
if (g_pConfig->VerifyModulesOnLoad())
{
m_pModule->VerifyAllMethods();
}
#endif //FEATURE_CORECLR
#ifdef _DEBUG
if (g_pConfig->ExpandModulesOnLoad())
{
m_pModule->ExpandAll();
}
#endif //_DEBUG
}
else
{
// This exception does not need to be localized as it can only happen in
// NGen and PEVerify, and we are not localizing those tools.
_ASSERTE(this->GetAppDomain()->IsPassiveDomain());
// This assert will fire if we attempt to run non-mscorlib code from within ngen
// Current audits of the system indicate that this will never occur, but if it does
// the exception below will prevent actual non-mscorlib code execution.
_ASSERTE(!this->GetAppDomain()->IsCompilationDomain());
LPCWSTR message = W("You may be trying to evaluate a permission from an assembly ")
W("without FullTrust, or which cannot execute code for other reasons.");
COMPlusThrowNonLocalized(kFileLoadException, message);
}
#endif // CROSSGEN_COMPILE
RETURN;
}
#ifdef FEATURE_LOADER_OPTIMIZATION
BOOL DomainFile::PropagateActivationInAppDomain(Module *pModuleFrom, Module *pModuleTo, AppDomain* pDomain)
{
CONTRACTL
{
PRECONDITION(CheckPointer(pModuleFrom));
PRECONDITION(CheckPointer(pModuleTo));
THROWS; // should only throw transient failures
DISABLED(GC_TRIGGERS);
MODE_ANY;
}
CONTRACTL_END;
#ifdef FEATURE_MULTICOREJIT
// Reset the flag to allow managed code to be called in multicore JIT background thread from this routine
ThreadStateNCStackHolder holder(-1, Thread::TSNC_CallingManagedCodeDisabled);
#endif
BOOL completed=true;
EX_TRY
{
GCX_COOP();
ENTER_DOMAIN_PTR(pDomain,ADV_ITERATOR); //iterator
DomainFile *pDomainFileFrom = pModuleFrom->FindDomainFile(pDomain);
if (pDomainFileFrom != NULL && pDomain->IsLoading(pDomainFileFrom, FILE_ACTIVE))
{
STRESS_LOG3(LF_LOADER, LL_INFO100,"Found DomainFile %p for module %p in AppDomain %i\n",pDomainFileFrom,pModuleFrom,pDomain->GetId().m_dwId);
DomainFile *pDomainFileTo = pModuleTo->FindDomainFile(pDomain);
if (pDomainFileTo == NULL)
pDomainFileTo = pDomain->LoadDomainNeutralModuleDependency(pModuleTo, FILE_LOADED);
if (!pDomainFileTo->TryEnsureActive())
pModuleFrom->EnableModuleFailureTriggers(pModuleTo, pDomain);
else if (!pDomainFileTo->IsActive())
{
// We are in a reentrant case
completed = FALSE;
}
}
END_DOMAIN_TRANSITION;
}
EX_CATCH
{
if (!IsExceptionOfType(kAppDomainUnloadedException, GET_EXCEPTION()))
EX_RETHROW;
}
EX_END_CATCH(SwallowAllExceptions)
return completed;
}
#endif
// Returns TRUE if activation is completed for all app domains
// static
BOOL DomainFile::PropagateNewActivation(Module *pModuleFrom, Module *pModuleTo)
{
CONTRACTL
{
PRECONDITION(CheckPointer(pModuleFrom));
PRECONDITION(CheckPointer(pModuleTo));
THROWS; // should only throw transient failures
GC_TRIGGERS;
MODE_ANY;
}
CONTRACTL_END;
BOOL completed = TRUE;
#ifdef FEATURE_LOADER_OPTIMIZATION
if (pModuleFrom->GetAssembly()->IsDomainNeutral())
{
AppDomainIterator ai(TRUE);
Thread *pThread = GetThread();
while (ai.Next())
{
STRESS_LOG3(LF_LOADER, LL_INFO100,"Attempting to propagate domain-neutral conditional module dependency %p -> %p to AppDomain %i\n",pModuleFrom,pModuleTo,ai.GetDomain()->GetId().m_dwId);
// This is to minimize the chances of trying to run code in an appdomain that's shutting down.
if (ai.GetDomain()->CanThreadEnter(pThread))
{
completed &= PropagateActivationInAppDomain(pModuleFrom,pModuleTo,ai.GetDomain());
}
}
}
else
#endif
{
AppDomain *pDomain = pModuleFrom->GetDomain()->AsAppDomain();
DomainFile *pDomainFileFrom = pModuleFrom->GetDomainFile(pDomain);
if (pDomain->IsLoading(pDomainFileFrom, FILE_ACTIVE))
{
// The dependency should already be loaded
DomainFile *pDomainFileTo = pModuleTo->GetDomainFile(pDomain);
if (!pDomainFileTo->TryEnsureActive())
pModuleFrom->EnableModuleFailureTriggers(pModuleTo, pDomain);
else if (!pDomainFileTo->IsActive())
{
// Reentrant case
completed = FALSE;
}
}
}
return completed;
}
// Checks that module has not been activated in any domain
CHECK DomainFile::CheckUnactivatedInAllDomains(Module *pModule)
{
CONTRACTL
{
PRECONDITION(CheckPointer(pModule));
THROWS;
GC_TRIGGERS;
MODE_ANY;
}
CONTRACTL_END;
if (pModule->GetAssembly()->IsDomainNeutral())
{
AppDomainIterator ai(TRUE);
while (ai.Next())
{
AppDomain *pDomain = ai.GetDomain();
DomainFile *pDomainFile = pModule->FindDomainFile(pDomain);
if (pDomainFile != NULL)
CHECK(!pDomainFile->IsActive());
}
}
else
{
DomainFile *pDomainFile = pModule->FindDomainFile(pModule->GetDomain()->AsAppDomain());
if (pDomainFile != NULL)
CHECK(!pDomainFile->IsActive());
}
CHECK_OK;
}
#ifdef FEATURE_PREJIT
DomainFile *DomainFile::FindNextDomainFileWithNativeImage()
{
LIMITED_METHOD_CONTRACT;
return m_pNextDomainFileWithNativeImage;
}
void DomainFile::InsertIntoDomainFileWithNativeImageList()
{
LIMITED_METHOD_CONTRACT;
while (true)
{
DomainFile *pLastDomainFileFoundWithNativeImage = m_pDomain->m_pDomainFileWithNativeImageList;
m_pNextDomainFileWithNativeImage = pLastDomainFileFoundWithNativeImage;
if (pLastDomainFileFoundWithNativeImage == InterlockedCompareExchangeT(&m_pDomain->m_pDomainFileWithNativeImageList, this, pLastDomainFileFoundWithNativeImage))
break;
}
}
#endif
//--------------------------------------------------------------------------------
// DomainAssembly
//--------------------------------------------------------------------------------
DomainAssembly::DomainAssembly(AppDomain *pDomain, PEFile *pFile, AssemblyLoadSecurity *pLoadSecurity, LoaderAllocator *pLoaderAllocator)
: DomainFile(pDomain, pFile),
m_pAssembly(NULL),
m_debuggerFlags(DACF_NONE),
#ifdef FEATURE_FUSION
m_pAssemblyBindingClosure(NULL),
#endif
m_MissingDependenciesCheckStatus(CMD_Unknown),
m_fSkipPolicyResolution(pLoadSecurity != NULL && !pLoadSecurity->ShouldResolvePolicy()),
m_fDebuggerUnloadStarted(FALSE),
m_fCollectible(pLoaderAllocator->IsCollectible()),
m_fHostAssemblyPublished(false),
m_fCalculatedShouldLoadDomainNeutral(false),
m_fShouldLoadDomainNeutral(false)
{
CONTRACTL
{
CONSTRUCTOR_CHECK;
STANDARD_VM_CHECK;
INJECT_FAULT(COMPlusThrowOM(););
}
CONTRACTL_END;
pFile->ValidateForExecution();
#ifndef CROSSGEN_COMPILE
if (m_fCollectible)
{
((AssemblyLoaderAllocator *)pLoaderAllocator)->SetDomainAssembly(this);
}
#endif
// !!! backout
m_hExposedAssemblyObject = NULL;
NewHolder<IAssemblySecurityDescriptor> pSecurityDescriptorHolder(Security::CreateAssemblySecurityDescriptor(pDomain, this, pLoaderAllocator));
if (pLoadSecurity != NULL)
{
#ifdef FEATURE_CAS_POLICY
// If this assembly had a file name specified, we aren't allowed to load from remote sources and we
// aren't in CAS policy mode (which sandboxes remote assemblies automatically), then we need to do a
// check on this assembly's zone of origin when creating it.
if (pLoadSecurity->m_fCheckLoadFromRemoteSource &&
!pLoadSecurity->m_fSuppressSecurityChecks &&
!m_pDomain->GetSecurityDescriptor()->AllowsLoadsFromRemoteSources() &&
!pFile->IsIntrospectionOnly())
{
SString strCodeBase;
BYTE pbUniqueID[MAX_SIZE_SECURITY_ID];
DWORD cbUniqueID = COUNTOF(pbUniqueID);
SecZone dwZone = NoZone;
GetSecurityIdentity(strCodeBase,
&dwZone,
0,
pbUniqueID,
&cbUniqueID);
// Since loads from remote sources are not enabled for this assembly, we only want to allow the
// load if any of the following conditions apply:
//
// * The load is coming off the local machine
// * The load is coming from the intranet or a trusted site, and the code base is UNC. (ie,
// don't allow HTTP loads off the local intranet
bool safeLoad = false;
if (dwZone == LocalMachine)
{
safeLoad = true;
}
else if (dwZone == Intranet || dwZone == Trusted)
{
if (UrlIsFileUrl(strCodeBase.GetUnicode()))
{
safeLoad = true;
}
else if (PathIsUNC(strCodeBase.GetUnicode()))
{
safeLoad = true;
}
}
if (!safeLoad)
{
// We've tried to load an assembly from a location where it would have been sandboxed in legacy
// CAS situations, but the application hasn't indicated that this is a safe thing to do. In
// order to prevent accidental security holes by silently loading assemblies in full trust that
// an application expected to be sandboxed, we'll throw an exception instead.
//
// Since this exception can commonly occur with if the file is physically located on the
// hard drive, but has the mark of the web on it we'll also try to detect this mark and
// provide a customized error message if we find it. We do that by re-evaluating the
// assembly's zone with the NOSAVEDFILECHECK flag, which ignores the mark of the web, and if
// that comes back as MyComputer we flag the assembly as having the mark of the web on it.
SecZone dwNoMotwZone = NoZone;
GetSecurityIdentity(strCodeBase, &dwNoMotwZone, MUTZ_NOSAVEDFILECHECK, pbUniqueID, &cbUniqueID);
if (dwNoMotwZone == LocalMachine)
{
COMPlusThrow(kNotSupportedException, IDS_E_LOADFROM_REMOTE_SOURCE_MOTW);
}
else
{
COMPlusThrow(kNotSupportedException, IDS_E_LOADFROM_REMOTE_SOURCE);
}
}
}
#endif // FEATURE_CAS_POLICY
if (GetFile()->IsSourceGAC())
{
// Assemblies in the GAC are not allowed to
// specify additional evidence. They must always follow default machine policy rules.
// So, we just ignore the evidence. (Ideally we would throw an error, but it would introduce app
// compat issues.)
}
else
{
#ifdef FEATURE_FUSION
// We do not support sharing behavior of ALWAYS when using evidence to load assemblies
if (pDomain->GetSharePolicy() == AppDomain::SHARE_POLICY_ALWAYS
&& ShouldLoadDomainNeutral())
{
// Just because we have information about the loaded assembly's security doesn't mean that
// we're trying to override evidence, make sure we're not just trying to push a grant set
if (((pLoadSecurity->m_pEvidence != NULL) && (*pLoadSecurity->m_pEvidence != NULL)) ||
((pLoadSecurity->m_pAdditionalEvidence != NULL) && (*pLoadSecurity->m_pAdditionalEvidence != NULL)))
{
// We may not be able to reduce sharing policy at this point, if we have already loaded
// some non-GAC assemblies as domain neutral. For this case we must regrettably fail
// the whole operation.
if (!pDomain->ReduceSharePolicyFromAlways())
{
ThrowHR(COR_E_CANNOT_SPECIFY_EVIDENCE);
}
}
}
#endif
{
GCX_COOP();
#ifdef FEATURE_CAS_POLICY
if (pLoadSecurity->m_pAdditionalEvidence != NULL)
{
if(*pLoadSecurity->m_pAdditionalEvidence != NULL)
{
pSecurityDescriptorHolder->SetAdditionalEvidence(*pLoadSecurity->m_pAdditionalEvidence);
}
}
else if (pLoadSecurity->m_pEvidence != NULL)
{
if (*pLoadSecurity->m_pEvidence != NULL)
{
pSecurityDescriptorHolder->SetEvidence(*pLoadSecurity->m_pEvidence);
}
}
#endif // FEATURE_CAS_POLICY
// If the assembly being loaded already knows its grant set (for instnace, it's being pushed
// from the loading assembly), then we can set that up now as well
if (!pLoadSecurity->ShouldResolvePolicy())
{
_ASSERTE(pLoadSecurity->m_pGrantSet != NULL);
#ifdef FEATURE_CAS_POLICY
// The permissions from an anonymously hosted dynamic method are fulltrust/transparent,
// so ensure we have full trust to pass that on to the new assembly
if(pLoadSecurity->m_fPropagatingAnonymouslyHostedDynamicMethodGrant &&
!CLRConfig::GetConfigValue(CLRConfig::UNSUPPORTED_Security_DisableAnonymouslyHostedDynamicMethodCreatorSecurityCheck))
{
Security::SpecialDemand(SSWT_LATEBOUND_LINKDEMAND, SECURITY_FULL_TRUST);
}
#endif // FEATURE_CAS_POLICY
pSecurityDescriptorHolder->PropagatePermissionSet(
*pLoadSecurity->m_pGrantSet,
pLoadSecurity->m_pRefusedSet == NULL ? NULL : *pLoadSecurity->m_pRefusedSet,
pLoadSecurity->m_dwSpecialFlags);
}
}
}
}
SetupDebuggingConfig();
// Add a Module iterator entry for this assembly.
IfFailThrow(m_Modules.Append(this));
m_pSecurityDescriptor = pSecurityDescriptorHolder.Extract();
}
DomainAssembly::~DomainAssembly()
{
CONTRACTL
{
DESTRUCTOR_CHECK;
NOTHROW;
GC_TRIGGERS;
MODE_ANY;
INJECT_FAULT(COMPlusThrowOM(););
}
CONTRACTL_END;
#ifdef FEATURE_HOSTED_BINDER
if (m_fHostAssemblyPublished)
{
// Remove association first.
GetAppDomain()->UnPublishHostedAssembly(this);
}
#endif
ModuleIterator i = IterateModules(kModIterIncludeLoading);
while (i.Next())
{
if (i.GetDomainFile() != this)
delete i.GetDomainFile();
}
if (m_pAssembly != NULL && !m_pAssembly->IsDomainNeutral())
{
delete m_pAssembly;
}
delete m_pSecurityDescriptor;
}
void DomainAssembly::ReleaseFiles()
{
STANDARD_VM_CONTRACT;
if(m_pAssembly)
m_pAssembly->StartUnload();
#ifdef FEATURE_FUSION
// release the old closure from the holder
m_pAssemblyBindingClosure=NULL;
#endif
ModuleIterator i = IterateModules(kModIterIncludeLoading);
while (i.Next())
{
if (i.GetDomainFile() != this)
i.GetDomainFile()->ReleaseFiles();
}
DomainFile::ReleaseFiles();
}
void DomainAssembly::SetAssembly(Assembly* pAssembly)
{
STANDARD_VM_CONTRACT;
UpdatePEFile(pAssembly->GetManifestFile());
_ASSERTE(pAssembly->GetManifestModule()->GetFile()==m_pFile);
m_pAssembly = pAssembly;
m_pModule = pAssembly->GetManifestModule();
pAssembly->SetDomainAssembly(this);
}
#ifdef FEATURE_MULTIMODULE_ASSEMBLIES
void DomainAssembly::AddModule(DomainModule *pModule)
{
CONTRACTL
{
INSTANCE_CHECK;
THROWS;
GC_TRIGGERS;
MODE_ANY;
}
CONTRACTL_END;
DWORD index = RidFromToken(pModule->GetToken());
while (index >= m_Modules.GetCount())
IfFailThrow(m_Modules.Append(NULL));
m_Modules.Set(index, pModule);
}
#endif // FEATURE_MULTIMODULE_ASSEMBLIES
#ifndef CROSSGEN_COMPILE
//---------------------------------------------------------------------------------------
//
// Returns managed representation of the assembly (Assembly or AssemblyBuilder).
// Returns NULL if the managed scout was already collected (see code:LoaderAllocator#AssemblyPhases).
//
OBJECTREF DomainAssembly::GetExposedAssemblyObject()
{
CONTRACTL
{
INSTANCE_CHECK;
THROWS;
MODE_COOPERATIVE;
GC_TRIGGERS;
}
CONTRACTL_END;
LoaderAllocator * pLoaderAllocator = GetLoaderAllocator();
if (!pLoaderAllocator->IsManagedScoutAlive())
{ // We already collected the managed scout, so we cannot re-create any managed objects
// Note: This is an optimization, as the managed scout can be collected right after this check
return NULL;
}
if (m_hExposedAssemblyObject == NULL)
{
// Atomically create a handle
LOADERHANDLE handle = pLoaderAllocator->AllocateHandle(NULL);
FastInterlockCompareExchangePointer(&m_hExposedAssemblyObject, handle, static_cast<LOADERHANDLE>(NULL));
}
if (pLoaderAllocator->GetHandleValue(m_hExposedAssemblyObject) == NULL)
{
ASSEMBLYREF assemblyObj = NULL;
MethodTable * pMT;
if (GetFile()->IsDynamic())
{
// This is unnecessary because the managed InternalAssemblyBuilder object
// should have already been created at the time of DefineDynamicAssembly
OVERRIDE_TYPE_LOAD_LEVEL_LIMIT(CLASS_LOADED);
pMT = MscorlibBinder::GetClass(CLASS__INTERNAL_ASSEMBLY_BUILDER);
}
else
{
OVERRIDE_TYPE_LOAD_LEVEL_LIMIT(CLASS_LOADED);
pMT = MscorlibBinder::GetClass(CLASS__ASSEMBLY);
}
// Will be TRUE only if LoaderAllocator managed object was already collected and therefore we should
// return NULL
BOOL fIsLoaderAllocatorCollected = FALSE;
// Create the assembly object
GCPROTECT_BEGIN(assemblyObj);
assemblyObj = (ASSEMBLYREF)AllocateObject(pMT);
assemblyObj->SetAssembly(this);
// Attach the reference to the assembly to keep the LoaderAllocator for this collectible type
// alive as long as a reference to the assembly is kept alive.
// Currently we overload the sync root field of the assembly to do so, but the overload is not necessary.
if (GetAssembly() != NULL)
{
OBJECTREF refLA = GetAssembly()->GetLoaderAllocator()->GetExposedObject();
if ((refLA == NULL) && GetAssembly()->GetLoaderAllocator()->IsCollectible())
{ // The managed LoaderAllocator object was collected
fIsLoaderAllocatorCollected = TRUE;
}
assemblyObj->SetSyncRoot(refLA);
}
if (!fIsLoaderAllocatorCollected)
{ // We should not expose this value in case the LoaderAllocator managed object was already
// collected
pLoaderAllocator->CompareExchangeValueInHandle(m_hExposedAssemblyObject, (OBJECTREF)assemblyObj, NULL);
}
GCPROTECT_END();
if (fIsLoaderAllocatorCollected)
{ // The LoaderAllocator managed object was already collected, we cannot re-create it
// Note: We did not publish the allocated Assembly/AssmeblyBuilder object, it will get collected
// by GC
return NULL;
}
}
return pLoaderAllocator->GetHandleValue(m_hExposedAssemblyObject);
} // DomainAssembly::GetExposedAssemblyObject
#endif // CROSSGEN_COMPILE
#ifdef FEATURE_LOADER_OPTIMIZATION
#ifdef FEATURE_FUSION
// This inner method exists to avoid EX_TRY calling _alloca repeatedly in the for loop below.
DomainAssembly::CMDI_Result DomainAssembly::CheckMissingDependencyInner(IAssemblyBindingClosure* pClosure, DWORD idx)
{
CONTRACTL {
INSTANCE_CHECK;
THROWS;
GC_TRIGGERS;
} CONTRACTL_END;
SafeComHolder<IAssemblyName> pAssemblyName;
HRESULT hrBindFailure = S_OK;
HRESULT hr = pClosure->GetNextFailureAssembly(idx, &pAssemblyName, &hrBindFailure);
if (hr == HRESULT_FROM_WIN32(ERROR_NO_MORE_ITEMS))
{
return CMDI_End;
}
IfFailThrow(hr);
CMDI_Result ret = CMDI_AssemblyResolveFailed;
AssemblySpec spec;
PEAssemblyHolder result;
EX_TRY
{
spec.InitializeSpec(pAssemblyName, this, FALSE);
result = this->GetAppDomain()->TryResolveAssembly(&spec,FALSE);
if (result && result->CanUseWithBindingCache())
{
this->GetAppDomain()->AddFileToCache(&spec, result);
ret = CMDI_AssemblyResolveSucceeded;
}
else
{
_ASSERTE(FAILED(hrBindFailure));
StackSString name;
spec.GetFileOrDisplayName(0, name);
NewHolder<EEFileLoadException> pEx(new EEFileLoadException(name, hrBindFailure));
this->GetAppDomain()->AddExceptionToCache(&spec, pEx);
}
}
EX_CATCH
{
// For compat reasons, we don't want to throw right now but make sure that we
// cache the exception so that it can be thrown if/when we try to load the
// further down the road. See VSW 528532 for more details.
}
EX_END_CATCH(RethrowTransientExceptions);
return ret;
}
// CheckMissingDependencies returns FALSE if any missing dependency would
// successfully bind with an AssemblyResolve event. When this is the case, we
// want to avoid sharing this assembly, since AssemblyResolve events are not
// under our control, and therefore not predictable.
CMD_State DomainAssembly::CheckMissingDependencies()
{
CONTRACTL {
INSTANCE_CHECK;
THROWS;
GC_TRIGGERS;
} CONTRACTL_END;
if (MissingDependenciesCheckDone())
return m_MissingDependenciesCheckStatus;
if (this->GetAppDomain()->IsCompilationDomain())
{
// Compilation domains will never have resolve events. Plus, this path
// will sidestep the compilation domain's bind override, which will make
// us skip over some dependencies.
m_MissingDependenciesCheckStatus = CMD_NotNeeded;
return m_MissingDependenciesCheckStatus;
}
if (IsSystem())
{
m_MissingDependenciesCheckStatus = CMD_NotNeeded;
return m_MissingDependenciesCheckStatus;
}
GCX_PREEMP();
IAssemblyBindingClosure * pClosure = GetAssemblyBindingClosure(LEVEL_COMPLETE);
if(pClosure == NULL)
{
// If the closure is empty, no need to iterate them.
m_MissingDependenciesCheckStatus = CMD_NotNeeded;
return m_MissingDependenciesCheckStatus;
}
for (DWORD idx = 0;;idx++)
{
switch (CheckMissingDependencyInner(pClosure, idx))
{
case CMDI_AssemblyResolveSucceeded:
{
STRESS_LOG1(LF_CODESHARING,LL_INFO100,"Missing dependencies check FAILED, DomainAssembly=%p",this);
m_MissingDependenciesCheckStatus = CMD_Resolved;
return m_MissingDependenciesCheckStatus;
break;
}
case CMDI_End:
{
STRESS_LOG1(LF_CODESHARING,LL_INFO100,"Missing dependencies check SUCCESSFUL, DomainAssembly=%p",this);
m_MissingDependenciesCheckStatus = CMD_IndeedMissing;
return m_MissingDependenciesCheckStatus;
break;
}
case CMDI_AssemblyResolveFailed:
{
// Don't take any action, just continue the loop.
break;
}
}
}
}
#endif // FEATURE_FUSION
BOOL DomainAssembly::MissingDependenciesCheckDone()
{
return m_MissingDependenciesCheckStatus != CMD_Unknown;
}
#ifdef FEATURE_CORECLR
CMD_State DomainAssembly::CheckMissingDependencies()
{
//CoreCLR simply doesn't share if dependencies are missing
return CMD_NotNeeded;
}
#endif // FEATURE_CORECLR
#endif // FEATURE_LOADER_OPTIMIZATION
#ifdef FEATURE_MULTIMODULE_ASSEMBLIES
DomainFile* DomainAssembly::FindModule(PEFile *pFile, BOOL includeLoading)
{
CONTRACT (DomainFile*)
{
INSTANCE_CHECK;
THROWS;
GC_NOTRIGGER;
MODE_ANY;
POSTCONDITION(CheckPointer(RETVAL, NULL_OK));
}
CONTRACT_END;
ModuleIterator i = IterateModules(includeLoading ? kModIterIncludeLoading : kModIterIncludeLoaded);
while (i.Next())
{
if (i.GetDomainFile()->Equals(pFile))
RETURN i.GetDomainFile();
}
RETURN NULL;
}
#endif // FEATURE_MULTIMODULE_ASSEMBLIES
DomainFile* DomainAssembly::FindIJWModule(HMODULE hMod)
{
CONTRACT (DomainFile*)
{
INSTANCE_CHECK;
THROWS;
GC_NOTRIGGER;
MODE_ANY;
POSTCONDITION(CheckPointer(RETVAL, NULL_OK));
}
CONTRACT_END;
ModuleIterator i = IterateModules(kModIterIncludeLoaded);
while (i.Next())
{
PEFile *pFile = i.GetDomainFile()->GetFile();
if ( !pFile->IsResource()
&& !pFile->IsDynamic()
&& !pFile->IsILOnly()
&& pFile->GetIJWBase() == hMod)
{
RETURN i.GetDomainFile();
}
}
RETURN NULL;
}
void DomainAssembly::Begin()
{
STANDARD_VM_CONTRACT;
{
AppDomain::LoadLockHolder lock(m_pDomain);
m_pDomain->AddAssembly(this);
}
#ifdef FEATURE_HOSTED_BINDER
// Make it possible to find this DomainAssembly object from associated ICLRPrivAssembly.
GetAppDomain()->PublishHostedAssembly(this);
m_fHostAssemblyPublished = true;
#endif
}
#ifdef FEATURE_PREJIT
void DomainAssembly::FindNativeImage()
{
CONTRACTL
{
INSTANCE_CHECK;
STANDARD_VM_CHECK;
}
CONTRACTL_END;
// For non-Apollo builds (i.e., when FEATURE_TREAT_NI_AS_MSIL_DURING_DIAGNOSTICS is
// NOT defined), this is how we avoid use of NGEN when diagnostics requests it: By
// clearing it out and forcing a load of the MSIL assembly. For Apollo builds
// (FEATURE_TREAT_NI_AS_MSIL_DURING_DIAGNOSTICS), though, this doesn't work, as we
// don't have MSIL assemblies handy (particularly for Fx Assemblies), so we need to
// keep the NGENd image loaded, but to treat it as if it were an MSIL assembly. See
// code:PEFile::SetNativeImage.
#ifndef FEATURE_TREAT_NI_AS_MSIL_DURING_DIAGNOSTICS
if (!NGENImagesAllowed())
{
GetFile()->SetCannotUseNativeImage();
if (GetFile()->HasNativeImage())
GetFile()->ClearNativeImage();
return;
}
#endif // FEATURE_TREAT_NI_AS_MSIL_DURING_DIAGNOSTICS
#ifndef FEATURE_CORECLR // hardbinding
// The IsSafeToHardBindTo() check is only for use during the ngen compilation phase. It discards ngen images for
// assemblies that aren't hard-bound to (as this would cause all such assemblies be loaded eagerly.)
if (!IsSystem() && this->GetAppDomain()->IsCompilationDomain() && !GetFile()->IsSafeToHardBindTo())
{
if (!this->GetAppDomain()->ToCompilationDomain()->IsSafeToHardBindTo(GetFile()))
{
GetFile()->SetCannotUseNativeImage();
if (GetFile()->HasNativeImage())
GetFile()->ClearNativeImage();
return;
}
GetFile()->SetSafeToHardBindTo();
}
#endif
#ifdef FEATURE_FUSION
DomainAssembly * pDomainAssembly = GetDomainAssembly();
if (pDomainAssembly->GetSecurityDescriptor()->HasAdditionalEvidence() ||
!(pDomainAssembly->GetFile()->IsContextLoad()
#ifdef FEATURE_HOSTED_BINDER
|| pDomainAssembly->GetFile()->HasHostAssembly()
#endif
))
{
m_pFile->SetCannotUseNativeImage();
}
#endif //FEATURE_FUSION
ClearNativeImageStress();
// We already have an image - we just need to do a few more checks
if (GetFile()->HasNativeImage())
{
#if defined(_DEBUG) && defined(FEATURE_CORECLR)
if (g_pConfig->ForbidZap(GetSimpleName()))
{
SString sbuf;
StackScratchBuffer scratch;
sbuf.Printf("COMPlus_NgenBind_ZapForbid violation: %s.", GetSimpleName());
DbgAssertDialog(__FILE__, __LINE__, sbuf.GetUTF8(scratch));
}
#endif
ReleaseHolder<PEImage> pNativeImage = GetFile()->GetNativeImageWithRef();
if(!IsSystem() && !SystemDomain::System()->SystemFile()->HasNativeImage() && !CLRConfig::GetConfigValue(CLRConfig::INTERNAL_NgenAllowMscorlibSoftbind))
{
m_dwReasonForRejectingNativeImage = ReasonForRejectingNativeImage_MscorlibNotNative;
STRESS_LOG2(LF_ZAP,LL_INFO100,"Rejecting native file %p, because mscolib has not NI - reason 0x%x\n",pNativeImage.GetValue(),m_dwReasonForRejectingNativeImage);
ExternalLog(LL_ERROR, "Rejecting native image because mscorlib does not have native image");
#ifdef FEATURE_FUSION
if(GetFile())
GetFile()->ETWTraceLogMessage(ETW::BinderLog::BinderStructs::NGEN_BIND_SYSTEM_ASSEMBLY_NATIVEIMAGE_NOT_AVAILABLE, NULL);
#endif
GetFile()->ClearNativeImage();
#ifdef FEATURE_WINDOWSPHONE
// On Phone, always through exceptions when we throw the NI out
ThrowHR(CLR_E_BIND_SYS_ASM_NI_MISSING);
#endif
}
else
if (!CheckZapSecurity(pNativeImage))
{
m_dwReasonForRejectingNativeImage = ReasonForRejectingNativeImage_FailedSecurityCheck;
STRESS_LOG2(LF_ZAP,LL_INFO100,"Rejecting native file %p, because security check failed - reason 0x%x\n",pNativeImage.GetValue(),m_dwReasonForRejectingNativeImage);
ExternalLog(LL_ERROR, "Rejecting native image because it failed the security check. "
"The assembly's permissions must have changed since the time it was ngenned, "
"or it is running with a different security context.");
#ifdef FEATURE_FUSION
if(GetFile())
GetFile()->ETWTraceLogMessage(ETW::BinderLog::BinderStructs::NGEN_BIND_ASSEMBLY_HAS_DIFFERENT_GRANT, NULL);
#endif
GetFile()->ClearNativeImage();
#ifdef FEATURE_WINDOWSPHONE
// On Phone, always through exceptions when we throw the NI out
ThrowHR(CLR_E_BIND_NI_SECURITY_FAILURE);
#endif
}
else if (!CheckZapDependencyIdentities(pNativeImage))
{
m_dwReasonForRejectingNativeImage = ReasonForRejectingNativeImage_DependencyIdentityMismatch;
STRESS_LOG2(LF_ZAP,LL_INFO100,"Rejecting native file %p, because dependency identity mismatch - reason 0x%x\n",pNativeImage.GetValue(),m_dwReasonForRejectingNativeImage);
ExternalLog(LL_ERROR, "Rejecting native image because of identity mismatch "
"with one or more of its assembly dependencies. The assembly needs "
"to be ngenned again");
#ifdef FEATURE_FUSION
if(GetFile())
GetFile()->ETWTraceLogMessage(ETW::BinderLog::BinderStructs::NGEN_BIND_DEPENDENCY_HAS_DIFFERENT_IDENTITY, NULL);
#endif
GetFile()->ClearNativeImage();
#ifdef FEATURE_WINDOWSPHONE
// On Phone, always through exceptions when we throw the NI out
ThrowHR(CLR_E_BIND_NI_DEP_IDENTITY_MISMATCH);
#endif
}
else
{
// We can only use a native image for a single Module. If this is a domain-bound
// load, we know that this means only a single load will use this image, so we can just
// flag it as in use.
// If on the other hand, we are going to be domain neutral, we may have many loads use
// the same native image. Still, we only want to allow the native image to be used
// by loads which are going to end up with the same Module. So, we have to effectively
// eagerly compute whether that will be the case eagerly, now. To enable this computation,
// we store the binding closure in the image.
Module * pNativeModule = pNativeImage->GetLoadedLayout()->GetPersistedModuleImage();
EnsureWritablePages(pNativeModule);
PEFile ** ppNativeFile = (PEFile **) (PBYTE(pNativeModule) + Module::GetFileOffset());
BOOL bExpectedToBeShared= ShouldLoadDomainNeutral();
if (!bExpectedToBeShared)
{
GetFile()->SetNativeImageUsedExclusively();
}
#ifdef FEATURE_FUSION
else
{
if (!IsSystem())
{
GetFile()->SetNativeImageClosure(GetAssemblyBindingClosure(LEVEL_STARTING));
}
}
#endif //FEATURE_FUSION
PEAssembly * pFile = (PEAssembly *)FastInterlockCompareExchangePointer((void **)ppNativeFile, (void *)GetFile(), (void *)NULL);
STRESS_LOG3(LF_ZAP,LL_INFO100,"Attempted to set new native file %p, old file was %p, location in the image=%p\n",GetFile(),pFile,ppNativeFile);
if (pFile!=NULL && !IsSystem() &&
( !bExpectedToBeShared ||
pFile == PEFile::Dummy() ||
pFile->IsNativeImageUsedExclusively() ||
#ifdef FEATURE_FUSION
!pFile->HasEqualNativeClosure(this) ||
#endif //FEATURE_FUSION
!(GetFile()->GetPath().Equals(pFile->GetPath())))
)
{
// The non-shareable native image has already been used in this process by another Module.
// We have to abandon the native image. (Note that it isn't enough to
// just abandon the preload image, since the code in the file will
// reference the image directly).
m_dwReasonForRejectingNativeImage = ReasonForRejectingNativeImage_CannotShareNiAssemblyNotDomainNeutral;
STRESS_LOG3(LF_ZAP,LL_INFO100,"Rejecting native file %p, because it is already used by file %p - reason 0x%x\n",GetFile(),pFile,m_dwReasonForRejectingNativeImage);
ExternalLog(LL_WARNING, "ZAP: An ngen image of an assembly which "
"is not loaded as domain-neutral cannot be used in multiple appdomains "
"- abandoning ngen image. The assembly will be JIT-compiled in "
"the second appdomain. See System.LoaderOptimization.MultiDomain "
"for information about domain-neutral loading.");
#ifdef FEATURE_FUSION
if(GetFile())
GetFile()->ETWTraceLogMessage(ETW::BinderLog::BinderStructs::NGEN_BIND_ASSEMBLY_NOT_DOMAIN_NEUTRAL, NULL);
#endif
GetFile()->ClearNativeImage();
// We only support a (non-shared) native image to be used from a single
// AppDomain. Its not obvious if this is an implementation restriction,
// or if this should fail DomainFile::CheckZapRequired().
// We err on the side of conservativeness, so that multi-domain tests
// do not blow up in CheckZapRequired()
GetFile()->SetCannotUseNativeImage();
}
else
{
//If we are the first and others can reuse us, we cannot go away
if ((pFile == NULL) && (!GetFile()->IsNativeImageUsedExclusively()))
GetFile()->AddRef();
LOG((LF_ZAP, LL_INFO100, "ZAP: Found a candidate native image for %s\n", GetSimpleName()));
}
}
}
#if defined(FEATURE_CORECLR)
if (!GetFile()->HasNativeImage())
{
//
// Verify that the IL image is consistent with the NGen images loaded into appdomain
//
AssemblySpec spec;
spec.InitializeSpec(GetFile());
GUID mvid;
GetFile()->GetMVID(&mvid);
GetAppDomain()->CheckForMismatchedNativeImages(&spec, &mvid);
}
#endif
CheckZapRequired();
}
#endif // FEATURE_PREJIT
BOOL DomainAssembly::ShouldLoadDomainNeutral()
{
STANDARD_VM_CONTRACT;
if (m_fCalculatedShouldLoadDomainNeutral)
return m_fShouldLoadDomainNeutral;
m_fShouldLoadDomainNeutral = !!ShouldLoadDomainNeutralHelper();
m_fCalculatedShouldLoadDomainNeutral = true;
return m_fShouldLoadDomainNeutral;
}
BOOL DomainAssembly::ShouldLoadDomainNeutralHelper()
{
STANDARD_VM_CONTRACT;
#ifdef FEATURE_LOADER_OPTIMIZATION
#ifndef FEATURE_CORECLR
BOOL fIsShareableHostAssembly = FALSE;
if (GetFile()->HasHostAssembly())
{
IfFailThrow(GetFile()->GetHostAssembly()->IsShareable(&fIsShareableHostAssembly));
}
#ifdef FEATURE_FUSION
// Only use domain neutral code for normal assembly loads
if ((GetFile()->GetFusionAssembly() == NULL) && !fIsShareableHostAssembly)
{
return FALSE;
}
#endif
#ifdef FEATURE_REFLECTION_ONLY_LOAD
// Introspection only does not use domain neutral code
if (IsIntrospectionOnly())
return FALSE;
#endif
#ifdef FEATURE_FUSION
// use domain neutral code only for Load context, as the
// required eager binding interferes with LoadFrom binding semantics
if (!GetFile()->IsContextLoad() && !fIsShareableHostAssembly)
return FALSE;
#endif
// Check app domain policy...
if (this->GetAppDomain()->ApplySharePolicy(this))
{
if (IsSystem())
return TRUE;
// if not the default AD, ensure that the closure is filled in
if (this->GetAppDomain() != SystemDomain::System()->DefaultDomain())
GetAssemblyBindingClosure(LEVEL_COMPLETE);
// Can be domain neutral only if we aren't binding any missing dependencies with
// the assembly resolve event
if ((this->GetAppDomain() != SystemDomain::System()->DefaultDomain()) &&
(CheckMissingDependencies() == CMD_Resolved))
{
return FALSE;
}
// Ensure that all security conditions are met for code sharing
if (!Security::CanShareAssembly(this))
{
return FALSE;
}
return TRUE;
}
return FALSE;
#else // FEATURE_CORECLR
if (IsSystem())
return TRUE;
if (IsSingleAppDomain())
return FALSE;
if (GetFile()->IsDynamic())
return FALSE;
#ifdef FEATURE_COMINTEROP
if (GetFile()->IsWindowsRuntime())
return FALSE;
#endif
switch(this->GetAppDomain()->GetSharePolicy()) {
case AppDomain::SHARE_POLICY_ALWAYS:
return TRUE;
case AppDomain::SHARE_POLICY_GAC:
return IsSystem();
case AppDomain::SHARE_POLICY_NEVER:
return FALSE;
case AppDomain::SHARE_POLICY_UNSPECIFIED:
case AppDomain::SHARE_POLICY_COUNT:
break;
}
return FALSE; // No meaning in doing costly closure walk for CoreCLR.
#endif // FEATURE_CORECLR
#else // FEATURE_LOADER_OPTIMIZATION
return IsSystem();
#endif // FEATURE_LOADER_OPTIMIZATION
}
BOOL DomainAssembly::ShouldSkipPolicyResolution()
{
LIMITED_METHOD_CONTRACT;
return m_fSkipPolicyResolution;
}
#if defined(FEATURE_LOADER_OPTIMIZATION) && defined(FEATURE_FUSION)
//
// Returns TRUE if the attempt to steal ownership of the native image succeeded, or if there are other
// reasons for retrying load of the native image in the current appdomain.
//
// Returns FALSE if the native image should be rejected in the current appdomain.
//
static BOOL TryToStealSharedNativeImageOwnership(PEFile ** ppNativeImage, PEFile * pNativeFile, PEFile * pFile)
{
STANDARD_VM_CONTRACT;
if (pNativeFile == PEFile::Dummy())
{
// Nothing to steal anymore. Loading of the native image failed elsewhere.
return FALSE;
}
_ASSERTE(!pNativeFile->IsNativeImageUsedExclusively());
_ASSERTE(!pFile->IsNativeImageUsedExclusively());
SharedDomain * pSharedDomain = SharedDomain::GetDomain();
// Take the lock so that nobody steals or creates Assembly object for this native image while we are stealing it
SharedFileLockHolder pNativeFileLock(pSharedDomain, pNativeFile, TRUE);
if (pNativeFile != VolatileLoad(ppNativeImage))
{
// The ownership changed before we got a chance. Retry.
return TRUE;
}
SharedAssemblyLocator locator(pNativeFile->AsAssembly(), SharedAssemblyLocator::PEASSEMBLYEXACT);
if (pSharedDomain->FindShareableAssembly(&locator))
{
// Another shared assembly (with different binding closure) uses this image, therefore we cannot use it
return FALSE;
}
BOOL success = InterlockedCompareExchangeT(ppNativeImage, pFile, pNativeFile) == pNativeFile;
// If others can reuse us, we cannot go away
if (success)
pFile->AddRef();
STRESS_LOG3(LF_ZAP,LL_INFO100,"Attempt to steal ownership from native file %p by %p success %d\n", pNativeFile, pFile, success);
return TRUE;
}
#endif // FEATURE_LOADER_OPTIMIZATION && FEATURE_FUSION
// This is where the decision whether an assembly is DomainNeutral (shared) nor not is made.
void DomainAssembly::Allocate()
{
CONTRACTL
{
INSTANCE_CHECK;
STANDARD_VM_CHECK;
INJECT_FAULT(COMPlusThrowOM(););
}
CONTRACTL_END;
// Make sure the security system is happy with this assembly being loaded into the domain
GetSecurityDescriptor()->CheckAllowAssemblyLoad();
AllocMemTracker amTracker;
AllocMemTracker * pamTracker = &amTracker;
Assembly * pAssembly = m_pAssembly;
if (pAssembly==NULL)
{
//! If you decide to remove "if" do not remove this brace: order is important here - in the case of an exception,
//! the Assembly holder must destruct before the AllocMemTracker declared above.
NewHolder<Assembly> assemblyHolder(NULL);
// Determine whether we are supposed to load the assembly as a shared
// assembly or into the app domain.
if (ShouldLoadDomainNeutral())
{
#ifdef FEATURE_LOADER_OPTIMIZATION
#ifdef FEATURE_FUSION
Retry:
#endif
// Try to find an existing shared version of the assembly which
// is compatible with our domain.
SharedDomain * pSharedDomain = SharedDomain::GetDomain();
SIZE_T nInitialShareableAssemblyCount = pSharedDomain->GetShareableAssemblyCount();
DWORD dwSwitchCount = 0;
SharedFileLockHolder pFileLock(pSharedDomain, GetFile(), FALSE);
if (IsSystem())
{
pAssembly=SystemDomain::SystemAssembly();
}
else
{
SharedAssemblyLocator locator(this);
pAssembly = pSharedDomain->FindShareableAssembly(&locator);
if (pAssembly == NULL)
{
pFileLock.Acquire();
pAssembly = pSharedDomain->FindShareableAssembly(&locator);
}
}
if (pAssembly == NULL)
{
#ifdef FEATURE_FUSION
// Final verification that we can use the ngen image.
//
// code:DomainAssembly::FindNativeImage checks the binding closures before declaring the native image as shareable candidate,
// but the ultimate decisions about sharing happens inside code:Assembly::CanBeShared called from FindShareableAssembly above.
// code:Assembly::CanBeShared checks more conditions than just binding closures. In particular, it also checks whether AssemblyResolve
// event resolves any missing dependencies found in the binding closure - the assembly cannot be shared if it is the case.
// The end result is that same ngen image can get here in multiple domains in parallel, but it may not be shareable between all of them.
//
// We reconcile this conflict by checking whether there is somebody else conflicting with us. If it is, we will try to steal
// the ownership of the native image from the other guy and retry. The retry logic is required to prevent a perfectly valid
// native image being dropped on the floor just because of multiple appdomains raced to load it.
{
ReleaseHolder<PEImage> pNativeImage = GetFile()->GetNativeImageWithRef();
if ((pNativeImage != NULL) && (pNativeImage->GetLoadedLayout() != NULL))
{
Module * pNativeModule = pNativeImage->GetLoadedLayout()->GetPersistedModuleImage();
if (pNativeModule != NULL)
{
// The owner of the native module was set thread-safe in code:DomainAssembly::FindNativeImage
// However the final decision if we can share the native image is done in this function (see usage of code:FindShareableAssembly above)
PEFile ** ppNativeFile = (PEFile **) (PBYTE(pNativeModule) + Module::GetFileOffset());
PEFile * pNativeFile = VolatileLoad(ppNativeFile);
if (pNativeFile != GetFile())
{
pFileLock.Release();
// Ensures that multiple threads won't fight with each other indefinitely
__SwitchToThread(0, ++dwSwitchCount);
if (!TryToStealSharedNativeImageOwnership(ppNativeFile, pNativeFile, GetFile()))
{
// If a shared assembly got loaded in the mean time, retry all lookups again
if (pSharedDomain->GetShareableAssemblyCount() != nInitialShareableAssemblyCount)
goto Retry;
m_dwReasonForRejectingNativeImage = ReasonForRejectingNativeImage_NiAlreadyUsedInAnotherSharedAssembly;
STRESS_LOG3(LF_ZAP,LL_INFO100,"Rejecting native file %p, because it is already used by shared file %p - reason 0x%x\n",GetFile(),pNativeFile,m_dwReasonForRejectingNativeImage);
GetFile()->ClearNativeImage();
GetFile()->SetCannotUseNativeImage();
}
goto Retry;
}
}
}
}
#endif // FEATURE_FUSION
// We can now rely on the fact that our MDImport will not change so we can stop refcounting it.
GetFile()->MakeMDImportPersistent();
// Go ahead and create new shared version of the assembly if possible
// <TODO> We will need to pass a valid OBJECREF* here in the future when we implement SCU </TODO>
assemblyHolder = pAssembly = Assembly::Create(pSharedDomain, GetFile(), GetDebuggerInfoBits(), FALSE, pamTracker, NULL);
if (MissingDependenciesCheckDone())
pAssembly->SetMissingDependenciesCheckDone();
// Compute the closure assembly dependencies
// of the code & layout of given assembly.
//
// An assembly has direct dependencies listed in its manifest.
//
// We do not in general also have all of those dependencies' dependencies in the manifest.
// After all, we may be only using a small portion of the assembly.
//
// However, since all dependent assemblies must also be shared (so that
// the shared data in this assembly can refer to it), we are in
// effect forced to behave as though we do have all of their dependencies.
// This is because the resulting shared assembly that we will depend on
// DOES have those dependencies, but we won't be able to validly share that
// assembly unless we match all of ITS dependencies, too.
#ifdef FEATURE_FUSION
if ((this->GetAppDomain()->GetFusionContext() != NULL) && !IsSystem())
{
IAssemblyBindingClosure* pClosure = GetAssemblyBindingClosure(LEVEL_STARTING);
pAssembly->SetBindingClosure(pClosure);
}
#endif // FEATURE_FUSION
// Sets the tenured bit atomically with the hash insert.
pSharedDomain->AddShareableAssembly(pAssembly);
}
#else // FEATURE_LOADER_OPTIMIZATION
_ASSERTE(IsSystem());
if (SystemDomain::SystemAssembly())
{
pAssembly = SystemDomain::SystemAssembly();
}
else
{
// We can now rely on the fact that our MDImport will not change so we can stop refcounting it.
GetFile()->MakeMDImportPersistent();
// <TODO> We will need to pass a valid OBJECTREF* here in the future when we implement SCU </TODO>
SharedDomain * pSharedDomain = SharedDomain::GetDomain();
assemblyHolder = pAssembly = Assembly::Create(pSharedDomain, GetFile(), GetDebuggerInfoBits(), FALSE, pamTracker, NULL);
pAssembly->SetIsTenured();
}
#endif // FEATURE_LOADER_OPTIMIZATION
}
else
{
// We can now rely on the fact that our MDImport will not change so we can stop refcounting it.
GetFile()->MakeMDImportPersistent();
// <TODO> We will need to pass a valid OBJECTREF* here in the future when we implement SCU </TODO>
assemblyHolder = pAssembly = Assembly::Create(m_pDomain, GetFile(), GetDebuggerInfoBits(), FALSE, pamTracker, NULL);
assemblyHolder->SetIsTenured();
}
//@todo! This is too early to be calling SuppressRelease. The right place to call it is below after
// the CANNOTTHROWCOMPLUSEXCEPTION. Right now, we have to do this to unblock OOM injection testing quickly
// as doing the right thing is nontrivial.
pamTracker->SuppressRelease();
assemblyHolder.SuppressRelease();
}
#ifdef FEATURE_COMINTEROP
// If we are in an AppX process we should prevent loading of PIA in the AppDomain.
// This will ensure that we do not run into any compatibility issues in case a type has both a co-Class and a Winrt Class
if (AppX::IsAppXProcess() && pAssembly->IsPIA())
{
COMPlusThrow(kNotSupportedException, W("NotSupported_PIAInAppxProcess"));
}
#endif
SetAssembly(pAssembly);
#ifdef FEATURE_PREJIT
BOOL fInsertIntoAssemblySpecBindingCache = TRUE;
// Insert AssemblyDef details into AssemblySpecBindingCache if appropriate
#ifdef FEATURE_FUSION
fInsertIntoAssemblySpecBindingCache = GetFile()->GetLoadContext() == LOADCTX_TYPE_DEFAULT;
#endif
#if defined(FEATURE_HOSTED_BINDER)
#if defined(FEATURE_APPX_BINDER)
fInsertIntoAssemblySpecBindingCache = fInsertIntoAssemblySpecBindingCache && !GetFile()->HasHostAssembly();
#else
fInsertIntoAssemblySpecBindingCache = fInsertIntoAssemblySpecBindingCache && GetFile()->CanUseWithBindingCache();
#endif
#endif
if (fInsertIntoAssemblySpecBindingCache)
{
AssemblySpec specAssemblyDef;
specAssemblyDef.InitializeSpec(GetFile());
if (specAssemblyDef.IsStrongNamed() && specAssemblyDef.HasPublicKey())
{
specAssemblyDef.ConvertPublicKeyToToken();
}
m_pDomain->AddAssemblyToCache(&specAssemblyDef, this);
}
#endif
} // DomainAssembly::Allocate
void DomainAssembly::DeliverAsyncEvents()
{
CONTRACTL
{
INSTANCE_CHECK;
NOTHROW;
GC_TRIGGERS;
MODE_ANY;
SO_INTOLERANT;
}
CONTRACTL_END;
OVERRIDE_LOAD_LEVEL_LIMIT(FILE_ACTIVE);
m_pDomain->RaiseLoadingAssemblyEvent(this);
}
void DomainAssembly::DeliverSyncEvents()
{
CONTRACTL
{
INSTANCE_CHECK;
STANDARD_VM_CHECK;
}
CONTRACTL_END;
GetCurrentModule()->NotifyEtwLoadFinished(S_OK);
// We may be notified from inside the loader lock if we are delivering IJW events, so keep track.
#ifdef PROFILING_SUPPORTED
if (!IsProfilerNotified())
{
SetProfilerNotified();
GetCurrentModule()->NotifyProfilerLoadFinished(S_OK);
}
#endif
#ifdef DEBUGGING_SUPPORTED
GCX_COOP();
if (!IsDebuggerNotified())
{
SetShouldNotifyDebugger();
if (m_pDomain->IsDebuggerAttached())
{
// If this is the first assembly in the AppDomain, it may be possible to get a better name than the
// default.
CollectibleAssemblyHolder<DomainAssembly *> pDomainAssembly;
m_pDomain->m_Assemblies.Get(m_pDomain, 0, pDomainAssembly.This());
if ((pDomainAssembly == this) && !m_pDomain->IsUserCreatedDomain())
m_pDomain->ResetFriendlyName();
}
// Still work to do even if no debugger is attached.
NotifyDebuggerLoad(ATTACH_ASSEMBLY_LOAD, FALSE);
}
#endif // DEBUGGING_SUPPORTED
} // DomainAssembly::DeliverSyncEvents
/*
// The enum for dwLocation from managed code:
public enum ResourceLocation
{
Embedded = 1,
ContainedInAnotherAssembly = 2,
ContainedInManifestFile = 4
}
*/
BOOL DomainAssembly::GetResource(LPCSTR szName, DWORD *cbResource,
PBYTE *pbInMemoryResource, DomainAssembly** pAssemblyRef,
LPCSTR *szFileName, DWORD *dwLocation,
StackCrawlMark *pStackMark, BOOL fSkipSecurityCheck,
BOOL fSkipRaiseResolveEvent)
{
CONTRACTL
{
INSTANCE_CHECK;
THROWS;
MODE_ANY;
INJECT_FAULT(COMPlusThrowOM(););
}
CONTRACTL_END;
return GetFile()->GetResource( szName,
cbResource,
pbInMemoryResource,
pAssemblyRef,
szFileName,
dwLocation,
pStackMark,
fSkipSecurityCheck,
fSkipRaiseResolveEvent,
this,
this->m_pDomain );
}
#ifdef FEATURE_MULTIMODULE_ASSEMBLIES
BOOL DomainAssembly::GetModuleResource(mdFile mdResFile, LPCSTR szResName,
DWORD *cbResource, PBYTE *pbInMemoryResource,
LPCSTR *szFileName, DWORD *dwLocation,
BOOL fIsPublic, StackCrawlMark *pStackMark,
BOOL fSkipSecurityCheck)
{
CONTRACTL
{
INSTANCE_CHECK;
THROWS;
MODE_ANY;
INJECT_FAULT(COMPlusThrowOM(););
}
CONTRACTL_END;
const char *szName;
DWORD dwFlags;
DomainFile *pModule = NULL;
DWORD dwOffset = 0;
if (! ((TypeFromToken(mdResFile) == mdtFile) &&
GetMDImport()->IsValidToken(mdResFile)) )
{
ThrowHR(COR_E_BADIMAGEFORMAT, BFA_INVALID_FILE_TOKEN);
}
IfFailThrow(GetMDImport()->GetFileProps(
mdResFile,
&szName,
NULL,
NULL,
&dwFlags));
if (IsFfContainsMetaData(dwFlags))
{
// The resource is embedded in a manifest-containing file.
mdManifestResource mdResource;
mdToken mdLinkRef;
DWORD dwResourceFlags;
Module *pContainerModule = GetCurrentModule();
// Use the real assembly with a rid map if possible
if (pContainerModule != NULL)
pModule = pContainerModule->LoadModule(m_pDomain, mdResFile, FALSE);
else
{
PEModuleHolder pFile(GetAssembly()->LoadModule_AddRef(mdResFile, FALSE));
pModule = m_pDomain->LoadDomainModule(this, pFile, FILE_LOADED);
}
if (FAILED(pModule->GetMDImport()->FindManifestResourceByName(szResName,
&mdResource)))
return FALSE;
IfFailThrow(pModule->GetMDImport()->GetManifestResourceProps(
mdResource,
NULL, //&szName,
&mdLinkRef,
&dwOffset,
&dwResourceFlags));
if (mdLinkRef != mdFileNil)
{
ThrowHR(COR_E_BADIMAGEFORMAT, BFA_CANT_GET_LINKREF);
}
fIsPublic = IsMrPublic(dwResourceFlags);
}
#ifndef CROSSGEN_COMPILE
if (!fIsPublic && pStackMark && !fSkipSecurityCheck)
{
Assembly *pCallersAssembly = SystemDomain::GetCallersAssembly(pStackMark);
if (pCallersAssembly && // full trust for interop
(!pCallersAssembly->GetManifestFile()->Equals(GetFile())))
{
RefSecContext sCtx(AccessCheckOptions::kMemberAccess);
AccessCheckOptions accessCheckOptions(
AccessCheckOptions::kMemberAccess, /*accessCheckType*/
NULL, /*pAccessContext*/
FALSE, /*throwIfTargetIsInaccessible*/
(MethodTable *) NULL /*pTargetMT*/
);
// SL: return TRUE only if the caller is critical
// Desktop: return TRUE only if demanding MemberAccess succeeds
if (!accessCheckOptions.DemandMemberAccessOrFail(&sCtx, NULL, TRUE /*visibilityCheck*/))
return FALSE;
}
}
#endif // CROSSGEN_COMPILE
if (IsFfContainsMetaData(dwFlags)) {
if (dwLocation) {
*dwLocation = *dwLocation | 1; // ResourceLocation.embedded
*szFileName = szName;
return TRUE;
}
pModule->GetFile()->GetEmbeddedResource(dwOffset, cbResource,
pbInMemoryResource);
return TRUE;
}
// The resource is linked (it's in its own file)
if (szFileName) {
*szFileName = szName;
return TRUE;
}
Module *pContainerModule = GetCurrentModule();
// Use the real assembly with a rid map if possible
if (pContainerModule != NULL)
pModule = pContainerModule->LoadModule(m_pDomain, mdResFile);
else
{
PEModuleHolder pFile(GetAssembly()->LoadModule_AddRef(mdResFile, TRUE));
pModule = m_pDomain->LoadDomainModule(this, pFile, FILE_LOADED);
}
COUNT_T size;
const void *contents = pModule->GetFile()->GetManagedFileContents(&size);
*pbInMemoryResource = (BYTE *) contents;
*cbResource = size;
return TRUE;
}
#endif // FEATURE_MULTIMODULE_ASSEMBLIES
#ifdef FEATURE_PREJIT
// --------------------------------------------------------------------------------
// Remember the timestamp of the CLR DLLs used to compile the ngen image.
// These will be checked at runtime by PEFile::CheckNativeImageTimeStamp().
//
void GetTimeStampsForNativeImage(CORCOMPILE_VERSION_INFO * pNativeVersionInfo)
{
CONTRACTL
{
STANDARD_VM_CHECK;
PRECONDITION(::GetAppDomain()->IsCompilationDomain());
}
CONTRACTL_END;
#ifdef FEATURE_CORECLR
// Do not store runtime timestamps into NGen image for cross-platform NGen determinism
#else
// fill in pRuntimeDllInfo
CORCOMPILE_RUNTIME_DLL_INFO *pRuntimeDllInfo = pNativeVersionInfo->runtimeDllInfo;
for (DWORD index = 0; index < NUM_RUNTIME_DLLS; index++)
{
#ifdef CROSSGEN_COMPILE
SString sFileName(SString::Utf8, CorCompileGetRuntimeDllName((CorCompileRuntimeDlls)index));
PEImageHolder pImage;
if (!GetAppDomain()->ToCompilationDomain()->FindImage(sFileName, MDInternalImport_NoCache, &pImage))
{
EEFileLoadException::Throw(sFileName, COR_E_FILENOTFOUND);
}
PEImageLayoutHolder pLayout(pImage->GetLayout(PEImageLayout::LAYOUT_FLAT,PEImage::LAYOUT_CREATEIFNEEDED));
pRuntimeDllInfo[index].timeStamp = pLayout->GetTimeDateStamp();
pRuntimeDllInfo[index].virtualSize = pLayout->GetVirtualSize();
#else // CROSSGEN_COMPILE
HMODULE hMod = CorCompileGetRuntimeDll((CorCompileRuntimeDlls)index);
if (hMod == NULL)
{
_ASSERTE((CorCompileRuntimeDlls)index == NGEN_COMPILER_INFO);
LPCWSTR wszDllName = CorCompileGetRuntimeDllName((CorCompileRuntimeDlls)index);
if (FAILED(g_pCLRRuntime->LoadLibrary(wszDllName, &hMod)))
{
EEPOLICY_HANDLE_FATAL_ERROR_WITH_MESSAGE(COR_E_EXECUTIONENGINE, W("Unable to load CLR DLL during ngen"));
}
}
_ASSERTE(hMod != NULL);
PEDecoder pe(hMod);
pRuntimeDllInfo[index].timeStamp = pe.GetTimeDateStamp();
pRuntimeDllInfo[index].virtualSize = pe.GetVirtualSize();
#endif // CROSSGEN_COMPILE
}
#endif // FEATURE_CORECLR
}
//
// Which processor should ngen target?
// This is needed when ngen wants to target for "reach" if the ngen images will be
// used on other machines (the Operating System or the OEM build lab can do this).
// It can also be used to reduce the testing matrix
//
void GetNGenCpuInfo(CORINFO_CPU * cpuInfo)
{
LIMITED_METHOD_CONTRACT;
#ifdef _TARGET_X86_
#ifdef FEATURE_CORECLR
static CORINFO_CPU ngenCpuInfo =
{
(CPU_X86_PENTIUM_PRO << 8), // dwCPUType
0x00000000, // dwFeatures
0 // dwExtendedFeatures
};
// We always generate P3-compatible code on CoreCLR
*cpuInfo = ngenCpuInfo;
#else // FEATURE_CORECLR
static CORINFO_CPU ngenCpuInfo =
{
(CPU_X86_PENTIUM_4 << 8), // dwCPUType
0x00008001, // dwFeatures
0 // dwExtendedFeatures
};
#ifndef CROSSGEN_COMPILE
GetSpecificCpuInfo(cpuInfo);
if (!IsCompatibleCpuInfo(cpuInfo, &ngenCpuInfo))
{
// Use the actual cpuInfo if the platform is not compatible
// with the "recommended" processor. We expect most platforms to be compatible
return;
}
#endif
*cpuInfo = ngenCpuInfo;
#endif // FEATURE_CORECLR
#else // _TARGET_X86_
cpuInfo->dwCPUType = 0;
cpuInfo->dwFeatures = 0;
cpuInfo->dwExtendedFeatures = 0;
#endif // _TARGET_X86_
}
// --------------------------------------------------------------------------------
void DomainAssembly::GetCurrentVersionInfo(CORCOMPILE_VERSION_INFO *pNativeVersionInfo)
{
CONTRACTL
{
INSTANCE_CHECK;
STANDARD_VM_CHECK;
}
CONTRACTL_END;
// Clear memory so that we won't write random data into the zapped file
ZeroMemory(pNativeVersionInfo, sizeof(CORCOMPILE_VERSION_INFO));
// Pick up any compilation directives for code flavor
BOOL fForceDebug, fForceProfiling, fForceInstrument;
SystemDomain::GetCompilationOverrides(&fForceDebug,
&fForceProfiling,
&fForceInstrument);
OSVERSIONINFOW osInfo;
osInfo.dwOSVersionInfoSize = sizeof(osInfo);
if (!GetOSVersion(&osInfo))
_ASSERTE(!"GetOSVersion failed");
_ASSERTE(osInfo.dwMajorVersion < 999);
_ASSERTE(osInfo.dwMinorVersion < 999);
pNativeVersionInfo->wOSPlatformID = (WORD) osInfo.dwPlatformId;
// The native images should be OS-version agnostic. Do not store the actual OS version for determinism.
// pNativeVersionInfo->wOSMajorVersion = (WORD) osInfo.dwMajorVersion;
pNativeVersionInfo->wOSMajorVersion = 4;
pNativeVersionInfo->wMachine = IMAGE_FILE_MACHINE_NATIVE_NI;
pNativeVersionInfo->wVersionMajor = VER_MAJORVERSION;
pNativeVersionInfo->wVersionMinor = VER_MINORVERSION;
pNativeVersionInfo->wVersionBuildNumber = VER_PRODUCTBUILD;
pNativeVersionInfo->wVersionPrivateBuildNumber = VER_PRODUCTBUILD_QFE;
GetNGenCpuInfo(&pNativeVersionInfo->cpuInfo);
#if _DEBUG
pNativeVersionInfo->wBuild = CORCOMPILE_BUILD_CHECKED;
#else
pNativeVersionInfo->wBuild = CORCOMPILE_BUILD_FREE;
#endif
#ifdef DEBUGGING_SUPPORTED
if (fForceDebug || !CORDebuggerAllowJITOpts(GetDebuggerInfoBits()))
{
pNativeVersionInfo->wCodegenFlags |= CORCOMPILE_CODEGEN_DEBUGGING;
pNativeVersionInfo->wConfigFlags |= CORCOMPILE_CONFIG_DEBUG;
}
else
#endif // DEBUGGING_SUPPORTED
{
pNativeVersionInfo->wConfigFlags |= CORCOMPILE_CONFIG_DEBUG_NONE;
}
#if defined (PROFILING_SUPPORTED_DATA) || defined(PROFILING_SUPPORTED)
if (fForceProfiling || CORProfilerUseProfileImages())
{
pNativeVersionInfo->wCodegenFlags |= CORCOMPILE_CODEGEN_PROFILING;
pNativeVersionInfo->wConfigFlags |= CORCOMPILE_CONFIG_PROFILING;
#ifdef DEBUGGING_SUPPORTED
// Note that we have hardwired profiling to also imply optimized debugging
// info. This cuts down on one permutation of prejit files.
pNativeVersionInfo->wCodegenFlags &= ~CORCOMPILE_CODEGEN_DEBUGGING;
pNativeVersionInfo->wConfigFlags &= ~(CORCOMPILE_CONFIG_DEBUG|
CORCOMPILE_CONFIG_DEBUG_DEFAULT);
pNativeVersionInfo->wConfigFlags |= CORCOMPILE_CONFIG_DEBUG_NONE;
#endif // DEBUGGING_SUPPORTED
}
else
#endif // PROFILING_SUPPORTED_DATA || PROFILING_SUPPORTED
{
pNativeVersionInfo->wConfigFlags |= CORCOMPILE_CONFIG_PROFILING_NONE;
}
#ifdef DEBUGGING_SUPPORTED
// Note the default assembly flags (from the custom attributes & INI file) , so we can
// set determine whether or not the current settings
// match the "default" setting or not.
// Note that the INI file settings are considered a part of the
// assembly, even though they could theoretically change between
// ngen time and runtime. It is just too expensive and awkward to
// look up the INI file before binding to the native image at
// runtime, so we effectively snapshot it at ngen time.
DWORD defaultFlags = ComputeDebuggingConfig();
if (CORDebuggerAllowJITOpts(defaultFlags))
{
// Default is optimized code
if ((pNativeVersionInfo->wCodegenFlags & CORCOMPILE_CODEGEN_DEBUGGING) == 0)
pNativeVersionInfo->wConfigFlags |= CORCOMPILE_CONFIG_DEBUG_DEFAULT;
}
else
{
// Default is non-optimized debuggable code
if ((pNativeVersionInfo->wCodegenFlags & CORCOMPILE_CODEGEN_DEBUGGING) != 0)
pNativeVersionInfo->wConfigFlags |= CORCOMPILE_CONFIG_DEBUG_DEFAULT;
}
#endif // DEBUGGING_SUPPORTED
if (fForceInstrument || GetAssembly()->IsInstrumented())
{
pNativeVersionInfo->wCodegenFlags |= CORCOMPILE_CODEGEN_PROF_INSTRUMENTING;
pNativeVersionInfo->wConfigFlags |= CORCOMPILE_CONFIG_INSTRUMENTATION;
}
else
{
pNativeVersionInfo->wConfigFlags |= CORCOMPILE_CONFIG_INSTRUMENTATION_NONE;
}
#if defined(_TARGET_AMD64_) && !defined(FEATURE_CORECLR)
if (UseRyuJit())
{
pNativeVersionInfo->wCodegenFlags |= CORCOMPILE_CODEGEN_USE_RYUJIT;
}
#endif
GetTimeStampsForNativeImage(pNativeVersionInfo);
// Store signature of source assembly.
GetOptimizedIdentitySignature(&pNativeVersionInfo->sourceAssembly);
// signature will is hash of the whole file. It is written by zapper.
// IfFailThrow(CoCreateGuid(&pNativeVersionInfo->signature));
}
void DomainAssembly::GetOptimizedIdentitySignature(CORCOMPILE_ASSEMBLY_SIGNATURE *pSignature)
{
CONTRACTL
{
INSTANCE_CHECK;
THROWS;
GC_TRIGGERS;
MODE_ANY;
INJECT_FAULT(COMPlusThrowOM(););
}
CONTRACTL_END;
//
// Write the MVID into the version header.
//
//
// If this assembly has skip verification permission, then we store its
// mvid. If at load time the assembly still has skip verification
// permission, then we can base the matches purely on mvid values and
// skip the perf-heavy hashing of the file.
//
//
// The reason that we tell IsFullyTrusted to do a quick check
// only is because that allows us make a determination for the most
// common full trust scenarios (local machine) without actually
// resolving policy and bringing in a whole list of assembly
// dependencies.
//
ReleaseHolder<IMDInternalImport> scope (GetFile()->GetMDImportWithRef());
IfFailThrow(scope->GetScopeProps(NULL, &pSignature->mvid));
// Use the NGen image if posssible. IL image does not even have to be present on CoreCLR.
if (GetFile()->HasNativeImage())
{
PEImageHolder pNativeImage(GetFile()->GetNativeImageWithRef());
CORCOMPILE_VERSION_INFO* pVersionInfo = pNativeImage->GetLoadedLayout()->GetNativeVersionInfo();
pSignature->timeStamp = pVersionInfo->sourceAssembly.timeStamp;
pSignature->ilImageSize = pVersionInfo->sourceAssembly.ilImageSize;
return;
}
// Write the time stamp
PEImageLayoutHolder ilLayout(GetFile()->GetAnyILWithRef());
pSignature->timeStamp = ilLayout->GetTimeDateStamp();
pSignature->ilImageSize = ilLayout->GetVirtualSize();
}
BOOL DomainAssembly::CheckZapDependencyIdentities(PEImage *pNativeImage)
{
CONTRACTL
{
INSTANCE_CHECK;
STANDARD_VM_CHECK;
}
CONTRACTL_END;
#ifdef FEATURE_CORECLR
AssemblySpec spec;
spec.InitializeSpec(this->GetFile());
// The assembly spec should have the binding context associated with it
_ASSERTE(spec.GetBindingContext() || spec.IsAssemblySpecForMscorlib());
CORCOMPILE_VERSION_INFO *pVersionInfo = pNativeImage->GetLoadedLayout()->GetNativeVersionInfo();
// Check our own assembly first
GetAppDomain()->CheckForMismatchedNativeImages(&spec, &pVersionInfo->sourceAssembly.mvid);
// Check MVID in metadata against MVID in CORCOMPILE_VERSION_INFO - important when metadata is loaded from IL instead of NI
ReleaseHolder<IMDInternalImport> pImport(this->GetFile()->GetMDImportWithRef());
GUID mvid;
IfFailThrow(pImport->GetScopeProps(NULL, &mvid));
GetAppDomain()->CheckForMismatchedNativeImages(&spec, &mvid);
// Now Check dependencies
COUNT_T cDependencies;
CORCOMPILE_DEPENDENCY *pDependencies = pNativeImage->GetLoadedLayout()->GetNativeDependencies(&cDependencies);
CORCOMPILE_DEPENDENCY *pDependenciesEnd = pDependencies + cDependencies;
while (pDependencies < pDependenciesEnd)
{
if (pDependencies->dwAssemblyDef != mdAssemblyRefNil)
{
AssemblySpec name;
name.InitializeSpec(pDependencies->dwAssemblyDef, pNativeImage->GetNativeMDImport(), this);
#if defined(FEATURE_HOST_ASSEMBLY_RESOLVER)
if (!name.IsAssemblySpecForMscorlib())
{
// We just initialized the assembly spec for the NI dependency. This will not have binding context
// associated with it, so set it from that of the parent.
_ASSERTE(!name.GetBindingContext());
ICLRPrivBinder *pParentAssemblyBindingContext = name.GetBindingContextFromParentAssembly(name.GetAppDomain());
_ASSERTE(pParentAssemblyBindingContext);
name.SetBindingContext(pParentAssemblyBindingContext);
}
#endif // defined(FEATURE_HOST_ASSEMBLY_RESOLVER)
GetAppDomain()->CheckForMismatchedNativeImages(&name, &pDependencies->signAssemblyDef.mvid);
}
pDependencies++;
}
#endif
return TRUE;
}
BOOL DomainAssembly::CheckZapSecurity(PEImage *pNativeImage)
{
CONTRACTL
{
INSTANCE_CHECK;
STANDARD_VM_CHECK;
}
CONTRACTL_END;
#ifdef FEATURE_CORECLR
return TRUE;
#else
//
// System libraries are a special case, the security info's always OK.
//
if (IsSystem())
return TRUE;
#ifdef FEATURE_NATIVE_IMAGE_GENERATION
//
// If we're just loading files as part of PDB generation, we're not executing code,
// so no need to do security checks
//
if (IsNgenPDBCompilationProcess())
return TRUE;
#endif
ETWOnStartup (SecurityCatchCall_V1, SecurityCatchCallEnd_V1);
#ifdef CROSSGEN_COMPILE
return TRUE;
#else
#ifdef FEATURE_APTCA
if (!Security::NativeImageHasValidAptcaDependencies(pNativeImage, this))
{
return FALSE;
}
#endif // !FEATURE_APTCA
GCX_COOP();
BOOL fHostProtectionOK = FALSE;
BOOL fImageAndDependenciesAreFullTrust = FALSE;
EX_TRY
{
// Check the HostProtection settings.
EApiCategories eRequestedProtectedCategories = GetHostProtectionManager()->GetProtectedCategories();
if (eRequestedProtectedCategories == eNoChecks)
fHostProtectionOK = TRUE;
// Due to native code generated for one IL image being more agressively put into another
// assembly's native image, we're disabling partial trust NGEN images. If the current
// domain can only have fully trusted assemblies, then we can load this image, or if the current
// assembly and its closure are all in the GAC we can also use it. Otherwise, we'll conservatively
// disable the use of this image.
IApplicationSecurityDescriptor *pAppDomainSecurity = this->GetAppDomain()->GetSecurityDescriptor();
if (pAppDomainSecurity->IsFullyTrusted() && pAppDomainSecurity->IsHomogeneous())
{
// A fully trusted homogenous domain can only have full trust assemblies, therefore this assembly
// and all its dependencies must be full trust
fImageAndDependenciesAreFullTrust = TRUE;
}
else if (IsClosedInGAC())
{
// The domain allows partial trust assemblies to be loaded into it. However, this assembly and
// all of its dependencies came from the GAC, so we know that they must all be trusted even if
// other code in this domain is not.
fImageAndDependenciesAreFullTrust = TRUE;
}
else
{
// The domain allows partial trust assemblies and we cannot prove that the closure of
// dependencies of this assembly will all be fully trusted. Conservatively throw away this NGEN
// image.
fImageAndDependenciesAreFullTrust = FALSE;
}
}
EX_CATCH
{
}
EX_END_CATCH(SwallowAllExceptions);
return fHostProtectionOK && fImageAndDependenciesAreFullTrust;
#endif // CROSSGEN_COMPILE
#endif // FEATURE_CORECLR
}
#endif // FEATURE_PREJIT
#ifdef FEATURE_CAS_POLICY
void DomainAssembly::InitializeSecurityManager()
{
CONTRACTL
{
INSTANCE_CHECK;
THROWS;
GC_NOTRIGGER;
MODE_PREEMPTIVE;
INJECT_FAULT(COMPlusThrowOM(););
}
CONTRACTL_END;
GetFile()->InitializeSecurityManager();
}
#endif // FEATURE_CAS_POLICY
#ifdef FEATURE_CAS_POLICY
// Returns security information for the assembly based on the codebase
void DomainAssembly::GetSecurityIdentity(SString &codebase,
SecZone *pdwZone,
DWORD dwFlags,
BYTE *pbUniqueID,
DWORD *pcbUniqueID)
{
CONTRACTL
{
INSTANCE_CHECK;
THROWS;
MODE_ANY;
PRECONDITION(CheckPointer(pdwZone));
PRECONDITION(CheckPointer(pbUniqueID));
PRECONDITION(CheckPointer(pcbUniqueID));
}
CONTRACTL_END;
GetFile()->GetSecurityIdentity(codebase, pdwZone, dwFlags, pbUniqueID, pcbUniqueID);
}
#endif // FEATURE_CAS_POLICY
#ifdef FEATURE_FUSION
IAssemblyBindingClosure* DomainAssembly::GetAssemblyBindingClosure(WALK_LEVEL level)
{
CONTRACT(IAssemblyBindingClosure *)
{
INSTANCE_CHECK;
POSTCONDITION(CheckPointer(RETVAL,NULL_OK));
//we could return NULL instead of asserting but hitting code paths that call this for mscorlib is just wasting of cycles anyhow
PRECONDITION(!IsSystem());
THROWS;
GC_TRIGGERS;
MODE_ANY;
INJECT_FAULT(COMPlusThrowOM(););
}
CONTRACT_END;
if (m_pAssemblyBindingClosure == NULL || m_pAssemblyBindingClosure->HasBeenWalked(level) == S_FALSE)
{
SafeComHolder<IAssemblyBindingClosure> pClosure;
if (this->GetAppDomain()->GetFusionContext() == NULL)
{
_ASSERTE(IsSystem());
RETURN NULL;
}
GCX_PREEMP();
ReleaseHolder<IBindResult> pWinRTBindResult;
IUnknown * pUnk;
if (GetFile()->IsIStream())
{
pUnk = GetFile()->GetIHostAssembly();
}
else if (GetFile()->IsWindowsRuntime())
{ // It is .winmd file (WinRT assembly)
IfFailThrow(CLRPrivAssemblyWinRT::GetIBindResult(GetFile()->GetHostAssembly(), &pWinRTBindResult));
pUnk = pWinRTBindResult;
}
else
{
pUnk = GetFile()->GetFusionAssembly();
}
if (m_pAssemblyBindingClosure == NULL)
{
IfFailThrow(this->GetAppDomain()->GetFusionContext()->GetAssemblyBindingClosure(pUnk, NULL, &pClosure));
if (FastInterlockCompareExchangePointer<IAssemblyBindingClosure*>(&m_pAssemblyBindingClosure, pClosure.GetValue(), NULL) == NULL)
{
pClosure.SuppressRelease();
}
}
IfFailThrow(m_pAssemblyBindingClosure->EnsureWalked(pUnk, this->GetAppDomain()->GetFusionContext(), level));
}
RETURN m_pAssemblyBindingClosure;
}
// This is used to determine if the binding closure of the assembly in question is in the GAC. Amongst other uses,
// this is the MULTI_DOMAIN_HOST scenario.
BOOL DomainAssembly::IsClosedInGAC()
{
CONTRACTL
{
INSTANCE_CHECK;
THROWS;
GC_TRIGGERS;
MODE_ANY;
INJECT_FAULT(COMPlusThrowOM(););
}
CONTRACTL_END;
if (IsSystem())
return TRUE;
BOOL fIsWindowsRuntime = GetFile()->IsWindowsRuntime();
if (!GetFile()->IsSourceGAC() && !fIsWindowsRuntime)
return FALSE;
// Do a binding closure that will help us determine if all the dependencies are in the GAC or not.
IAssemblyBindingClosure * pClosure = GetAssemblyBindingClosure(LEVEL_GACCHECK);
if (pClosure == NULL)
return FALSE;
// Once the closure is complete, determine if the dependencies are closed in the GAC (or not).
HRESULT hr = pClosure->IsAllAssembliesInGAC();
IfFailThrow(hr);
return (hr == S_OK);
}
BOOL DomainAssembly::MayHaveUnknownDependencies()
{
CONTRACTL
{
INSTANCE_CHECK;
THROWS;
GC_TRIGGERS;
MODE_ANY;
INJECT_FAULT(COMPlusThrowOM(););
}
CONTRACTL_END;
if (IsSystem())
return FALSE;
// Perform the binding closure walk to initialize state that will help us
// determine if we have dependencies that could prevent code-sharing.
IAssemblyBindingClosure * pClosure = GetAssemblyBindingClosure(LEVEL_WINRTCHECK);
if (pClosure == NULL)
return FALSE;
HRESULT hr = pClosure->MayHaveUnknownDependencies();
IfFailThrow(hr);
return (hr == S_OK);
}
#endif // FEATURE_FUSION
// <TODO>@todo Find a better place for these</TODO>
#define DE_CUSTOM_VALUE_NAMESPACE "System.Diagnostics"
#define DE_DEBUGGABLE_ATTRIBUTE_NAME "DebuggableAttribute"
// <TODO>@todo .INI file is a temporary workaround for Beta 1</TODO>
#define DE_INI_FILE_SECTION_NAME W(".NET Framework Debugging Control")
#define DE_INI_FILE_KEY_TRACK_INFO W("GenerateTrackingInfo")
#define DE_INI_FILE_KEY_ALLOW_JIT_OPTS W("AllowOptimize")
DWORD DomainAssembly::ComputeDebuggingConfig()
{
CONTRACTL
{
INSTANCE_CHECK;
THROWS;
WRAPPER(GC_TRIGGERS);
MODE_ANY;
INJECT_FAULT(COMPlusThrowOM(););
}
CONTRACTL_END;
#ifdef DEBUGGING_SUPPORTED
DWORD dacfFlags = DACF_ALLOW_JIT_OPTS;
if (GetDebuggingOverrides(&dacfFlags))
{
dacfFlags |= DACF_USER_OVERRIDE;
}
else
{
IfFailThrow(GetDebuggingCustomAttributes(&dacfFlags));
}
return dacfFlags;
#else // !DEBUGGING_SUPPORTED
return 0;
#endif // DEBUGGING_SUPPORTED
}
void DomainAssembly::SetupDebuggingConfig(void)
{
CONTRACTL
{
INSTANCE_CHECK;
THROWS;
WRAPPER(GC_TRIGGERS);
MODE_ANY;
INJECT_FAULT(COMPlusThrowOM(););
}
CONTRACTL_END;
#ifdef DEBUGGING_SUPPORTED
DWORD dacfFlags = ComputeDebuggingConfig();
SetDebuggerInfoBits((DebuggerAssemblyControlFlags)dacfFlags);
LOG((LF_CORDB, LL_INFO10, "Assembly %S: bits=0x%x\n", GetDebugName(), GetDebuggerInfoBits()));
#endif // DEBUGGING_SUPPORTED
}
// The format for the (temporary) .INI file is:
// [.NET Framework Debugging Control]
// GenerateTrackingInfo=<n> where n is 0 or 1
// AllowOptimize=<n> where n is 0 or 1
// Where neither x nor y equal INVALID_INI_INT:
#define INVALID_INI_INT (0xFFFF)
bool DomainAssembly::GetDebuggingOverrides(DWORD *pdwFlags)
{
CONTRACTL
{
INSTANCE_CHECK;
THROWS;
GC_NOTRIGGER;
MODE_ANY;
INJECT_FAULT(COMPlusThrowOM(););
}
CONTRACTL_END;
#if defined(DEBUGGING_SUPPORTED) && !defined(FEATURE_CORESYSTEM)
// TODO FIX in V5.0
// Any touch of the file system is relatively expensive even in the warm case.
//
// Ideally we remove the .INI feature completely (if we need something put it in the .exe.config file)
//
// However because of compatibility concerns, we won't do this until the next side-by-side release
// In the mean time don't check in the case where we have already loaded the NGEN image, as the
// JIT overrides don't mean anything in that case as we won't be jitting anyway.
// This avoids doing these probes for framework DLLs right away.
if (GetFile()->HasNativeImage())
return false;
_ASSERTE(pdwFlags);
bool fHasBits = false;
WCHAR *pFileName = NULL;
HRESULT hr = S_OK;
UINT cbExtOrValue = 4;
WCHAR *pTail = NULL;
size_t len = 0;
WCHAR *lpFileName = NULL;
const WCHAR *wszFileName = GetFile()->GetPath();
if (wszFileName == NULL)
{
return false;
}
// lpFileName is a copy of the original, and will be edited.
CQuickBytes qb;
len = wcslen(wszFileName);
size_t cchlpFileName = (len + 1);
lpFileName = (WCHAR*)qb.AllocThrows(cchlpFileName * sizeof(WCHAR));
wcscpy_s(lpFileName, cchlpFileName, wszFileName);
pFileName = wcsrchr(lpFileName, W('\\'));
if (pFileName == NULL)
{
pFileName = lpFileName;
}
if (*pFileName == W('\\'))
{
pFileName++; //move the pointer past the last '\'
}
_ASSERTE(wcslen(W(".INI")) == cbExtOrValue);
if (pFileName == NULL || (pTail=wcsrchr(pFileName, W('.'))) == NULL || (wcslen(pTail)<cbExtOrValue))
{
return false;
}
wcscpy_s(pTail, cchlpFileName - (pTail - lpFileName), W(".INI"));
// Win2K has a problem if multiple processes call GetPrivateProfile* on the same
// non-existent .INI file simultaneously. The OS livelocks in the kernel (i.e.
// outside of user space) and remains there at full CPU for several minutes. Then
// it breaks out. Here is our work-around, while we pursue a fix in a future
// version of the OS.
if (WszGetFileAttributes(lpFileName) == INVALID_FILE_ATTRIBUTES)
return false;
// Having modified the filename, we use the full path
// to actually get the file.
if ((cbExtOrValue=WszGetPrivateProfileInt(DE_INI_FILE_SECTION_NAME,
DE_INI_FILE_KEY_TRACK_INFO,
INVALID_INI_INT,
lpFileName)) != INVALID_INI_INT)
{
if (cbExtOrValue != 0)
{
*pdwFlags |= DACF_OBSOLETE_TRACK_JIT_INFO;
}
else
{
*pdwFlags &= (~DACF_OBSOLETE_TRACK_JIT_INFO);
}
fHasBits = true;
}
if ((cbExtOrValue=WszGetPrivateProfileInt(DE_INI_FILE_SECTION_NAME,
DE_INI_FILE_KEY_ALLOW_JIT_OPTS,
INVALID_INI_INT,
lpFileName)) != INVALID_INI_INT)
{
if (cbExtOrValue != 0)
{
*pdwFlags |= DACF_ALLOW_JIT_OPTS;
}
else
{
*pdwFlags &= (~DACF_ALLOW_JIT_OPTS);
}
fHasBits = true;
}
return fHasBits;
#else // DEBUGGING_SUPPORTED && !FEATURE_CORESYSTEM
return false;
#endif // DEBUGGING_SUPPORTED && !FEATURE_CORESYSTEM
}
// For right now, we only check to see if the DebuggableAttribute is present - later may add fields/properties to the
// attributes.
HRESULT DomainAssembly::GetDebuggingCustomAttributes(DWORD *pdwFlags)
{
CONTRACTL
{
INSTANCE_CHECK;
NOTHROW;
WRAPPER(GC_TRIGGERS);
MODE_ANY;
FORBID_FAULT;
PRECONDITION(CheckPointer(pdwFlags));
}
CONTRACTL_END;
HRESULT hr = S_OK;
#ifdef FEATURE_PREJIT
ReleaseHolder<PEImage> pNativeImage=GetFile()->GetNativeImageWithRef();
if (pNativeImage)
{
CORCOMPILE_VERSION_INFO * pVersion = pNativeImage->GetLoadedLayout()->GetNativeVersionInfo();
PREFIX_ASSUME(pVersion != NULL);
WORD codegen = pVersion->wCodegenFlags;
if (codegen & CORCOMPILE_CODEGEN_DEBUGGING)
{
*pdwFlags &= (~DACF_ALLOW_JIT_OPTS);
}
else
{
*pdwFlags |= DACF_ALLOW_JIT_OPTS;
}
}
else
#endif // FEATURE_PREJIT
{
ULONG size;
BYTE *blob;
mdModule mdMod;
ReleaseHolder<IMDInternalImport> mdImport(GetFile()->GetMDImportWithRef());
mdMod = mdImport->GetModuleFromScope();
mdAssembly asTK = TokenFromRid(mdtAssembly, 1);
hr = mdImport->GetCustomAttributeByName(asTK,
DE_CUSTOM_VALUE_NAMESPACE
NAMESPACE_SEPARATOR_STR
DE_DEBUGGABLE_ATTRIBUTE_NAME,
(const void**)&blob,
&size);
// If there is no custom value, then there is no entrypoint defined.
if (!(FAILED(hr) || hr == S_FALSE))
{
// We're expecting a 6 or 8 byte blob:
//
// 1, 0, enable tracking, disable opts, 0, 0
if ((size == 6) || (size == 8))
{
if (!((blob[0] == 1) && (blob[1] == 0)))
{
BAD_FORMAT_NOTHROW_ASSERT(!"Invalid blob format for custom attribute");
return COR_E_BADIMAGEFORMAT;
}
if (blob[2] & 0x1)
{
*pdwFlags |= DACF_OBSOLETE_TRACK_JIT_INFO;
}
else
{
*pdwFlags &= (~DACF_OBSOLETE_TRACK_JIT_INFO);
}
if (blob[2] & 0x2)
{
*pdwFlags |= DACF_IGNORE_PDBS;
}
else
{
*pdwFlags &= (~DACF_IGNORE_PDBS);
}
// For compatibility, we enable optimizations if the tracking byte is zero,
// even if disable opts is nonzero
if (((blob[2] & 0x1) == 0) || (blob[3] == 0))
{
*pdwFlags |= DACF_ALLOW_JIT_OPTS;
}
else
{
*pdwFlags &= (~DACF_ALLOW_JIT_OPTS);
}
LOG((LF_CORDB, LL_INFO10, "Assembly %S: has %s=%d,%d bits = 0x%x\n", GetDebugName(),
DE_DEBUGGABLE_ATTRIBUTE_NAME,
blob[2], blob[3], *pdwFlags));
}
}
}
return hr;
}
BOOL DomainAssembly::NotifyDebuggerLoad(int flags, BOOL attaching)
{
WRAPPER_NO_CONTRACT;
BOOL result = FALSE;
if (!IsVisibleToDebugger())
return FALSE;
// Debugger Attach is done totally out-of-process. Does not call code in-proc.
_ASSERTE(!attaching);
// Make sure the debugger has been initialized. See code:Debugger::Startup.
if (g_pDebugInterface == NULL)
{
_ASSERTE(!CORDebuggerAttached());
return FALSE;
}
// There is still work we need to do even when no debugger is attached.
if (flags & ATTACH_ASSEMBLY_LOAD)
{
if (ShouldNotifyDebugger())
{
g_pDebugInterface->LoadAssembly(this);
}
result = TRUE;
}
DomainModuleIterator i = IterateModules(kModIterIncludeLoading);
while (i.Next())
{
DomainFile * pDomainFile = i.GetDomainFile();
if(pDomainFile->ShouldNotifyDebugger())
{
result = result ||
pDomainFile->GetModule()->NotifyDebuggerLoad(this->GetAppDomain(), pDomainFile, flags, attaching);
}
}
if( ShouldNotifyDebugger())
{
result|=m_pModule->NotifyDebuggerLoad(m_pDomain, this, ATTACH_MODULE_LOAD, attaching);
SetDebuggerNotified();
}
return result;
}
void DomainAssembly::NotifyDebuggerUnload()
{
LIMITED_METHOD_CONTRACT;
if (!IsVisibleToDebugger())
return;
if (!this->GetAppDomain()->IsDebuggerAttached())
return;
m_fDebuggerUnloadStarted = TRUE;
// Dispatch module unloads for all modules. Debugger is resilient in case we haven't dispatched
// a previous load event (such as if debugger attached after the modules was loaded).
DomainModuleIterator i = IterateModules(kModIterIncludeLoading);
while (i.Next())
{
i.GetDomainFile()->GetModule()->NotifyDebuggerUnload(this->GetAppDomain());
}
g_pDebugInterface->UnloadAssembly(this);
}
// This will enumerate for static GC refs (but not thread static GC refs)
void DomainAssembly::EnumStaticGCRefs(promote_func* fn, ScanContext* sc)
{
CONTRACT_VOID
{
NOTHROW;
GC_NOTRIGGER;
}
CONTRACT_END;
_ASSERTE(GCHeap::IsGCInProgress() &&
GCHeap::IsServerHeap() &&
IsGCSpecialThread());
DomainModuleIterator i = IterateModules(kModIterIncludeLoaded);
while (i.Next())
{
DomainFile* pDomainFile = i.GetDomainFile();
if (pDomainFile->IsActive())
{
// We guarantee that at this point the module has it's DomainLocalModule set up
// , as we create it while we load the module
_ASSERTE(pDomainFile->GetLoadedModule()->GetDomainLocalModule(this->GetAppDomain()));
pDomainFile->GetLoadedModule()->EnumRegularStaticGCRefs(this->GetAppDomain(), fn, sc);
// We current to do not iterate over the ThreadLocalModules that correspond
// to this Module. The GC discovers thread statics through the handle table.
}
}
RETURN;
}
#ifdef FEATURE_MULTIMODULE_ASSEMBLIES
//--------------------------------------------------------------------------------
// DomainModule
//--------------------------------------------------------------------------------
DomainModule::DomainModule(AppDomain *pDomain, DomainAssembly *pAssembly, PEFile *pFile)
: DomainFile(pDomain, pFile),
m_pDomainAssembly(pAssembly)
{
STANDARD_VM_CONTRACT;
}
DomainModule::~DomainModule()
{
WRAPPER_NO_CONTRACT;
}
void DomainModule::SetModule(Module* pModule)
{
STANDARD_VM_CONTRACT;
UpdatePEFile(pModule->GetFile());
pModule->SetDomainFile(this);
// SetDomainFile can throw and will unwind to DomainModule::Allocate at which
// point pModule->Destruct will be called in the catch handler. if we set
// m_pModule = pModule before the call to SetDomainFile then we can end up with
// a bad m_pModule pointer when SetDomainFile throws. so we set m_pModule IIF
// the call to SetDomainFile succeeds.
m_pModule = pModule;
}
void DomainModule::Begin()
{
STANDARD_VM_CONTRACT;
m_pDomainAssembly->AddModule(this);
}
#ifdef FEATURE_PREJIT
void DomainModule::FindNativeImage()
{
LIMITED_METHOD_CONTRACT;
// Resource files are never prejitted.
}
#endif // FEATURE_PREJIT
void DomainModule::Allocate()
{
CONTRACTL
{
INSTANCE_CHECK;
STANDARD_VM_CHECK;
}
CONTRACTL_END;
// We can now rely on the fact that our MDImport will not change so we can stop refcounting it.
GetFile()->MakeMDImportPersistent();
AllocMemTracker amTracker;
AllocMemTracker *pamTracker = &amTracker;
Assembly *pAssembly = m_pDomainAssembly->GetCurrentAssembly();
Module *pModule = NULL;
if (pAssembly->IsDomainNeutral())
{
// For shared assemblies, the module may be already in the assembly list, even
// though we haven't loaded it here yet.
pModule = pAssembly->GetManifestModule()->GetModuleIfLoaded(GetToken(),FALSE, TRUE);
if (pModule != NULL)
{
SetModule(pModule);
return;
}
else
{
#ifdef FEATURE_LOADER_OPTIMIZATION
SharedDomain *pSharedDomain = SharedDomain::GetDomain();
SharedFileLockHolder pFileLock(pSharedDomain, GetFile());
#else // FEATURE_LOADER_OPTIMIZATION
_ASSERTE(IsSystem());
#endif // FEATURE_LOADER_OPTIMIZATION
pModule = pAssembly->GetManifestModule()->GetModuleIfLoaded(GetToken(), FALSE, TRUE);
if (pModule != NULL)
{
SetModule(pModule);
return;
}
else
{
pModule = Module::Create(pAssembly, GetToken(), m_pFile, pamTracker);
EX_TRY
{
pAssembly->PrepareModuleForAssembly(pModule, pamTracker);
SetModule(pModule); //@todo: This innocent-looking call looks like a mixture of allocations and publishing code - it probably needs to be split.
}
EX_HOOK
{
//! It's critical we destruct the manifest Module prior to the AllocMemTracker used to initialize it.
//! Otherwise, we will leave dangling pointers inside the Module that Module::Destruct will attempt
//! to dereference.
pModule->Destruct();
}
EX_END_HOOK
{
CANNOTTHROWCOMPLUSEXCEPTION();
FAULT_FORBID();
//Cannot fail after this point.
pamTracker->SuppressRelease();
pModule->SetIsTenured();
pAssembly->PublishModuleIntoAssembly(pModule);
return; // Explicit return to let you know you are NOT welcome to add code after the CANNOTTHROW/FAULT_FORBID expires
}
}
}
}
else
{
pModule = Module::Create(pAssembly, GetToken(), m_pFile, pamTracker);
EX_TRY
{
pAssembly->PrepareModuleForAssembly(pModule, pamTracker);
SetModule(pModule); //@todo: This innocent-looking call looks like a mixture of allocations and publishing code - it probably needs to be split.
}
EX_HOOK
{
//! It's critical we destruct the manifest Module prior to the AllocMemTracker used to initialize it.
//! Otherwise, we will leave dangling pointers inside the Module that Module::Destruct will attempt
//! to dereference.
pModule->Destruct();
}
EX_END_HOOK
{
CANNOTTHROWCOMPLUSEXCEPTION();
FAULT_FORBID();
//Cannot fail after this point.
pamTracker->SuppressRelease();
pModule->SetIsTenured();
pAssembly->PublishModuleIntoAssembly(pModule);
return; // Explicit return to let you know you are NOT welcome to add code after the CANNOTTHROW/FAULT_FORBID expires
}
}
}
void DomainModule::DeliverAsyncEvents()
{
LIMITED_METHOD_CONTRACT;
return;
}
void DomainModule::DeliverSyncEvents()
{
CONTRACTL
{
INSTANCE_CHECK;
THROWS;
GC_TRIGGERS;
MODE_ANY;
INJECT_FAULT(COMPlusThrowOM(););
SO_INTOLERANT;
}
CONTRACTL_END;
GetCurrentModule()->NotifyEtwLoadFinished(S_OK);
#ifdef PROFILING_SUPPORTED
if (!IsProfilerNotified())
{
SetProfilerNotified();
GetCurrentModule()->NotifyProfilerLoadFinished(S_OK);
}
#endif
#ifdef DEBUGGING_SUPPORTED
GCX_COOP();
if(!IsDebuggerNotified())
{
SetShouldNotifyDebugger();
{
// Always give the module a chance to notify the debugger. If no debugger is attached, the
// module can skip out on the notification.
m_pModule->NotifyDebuggerLoad(m_pDomain, this, ATTACH_MODULE_LOAD, FALSE);
SetDebuggerNotified();
}
}
#endif
}
#endif // FEATURE_MULTIMODULE_ASSEMBLIES
#endif // #ifndef DACCESS_COMPILE
#ifdef DACCESS_COMPILE
void
DomainFile::EnumMemoryRegions(CLRDataEnumMemoryFlags flags)
{
SUPPORTS_DAC;
//sizeof(DomainFile) == 0x60
DAC_ENUM_VTHIS();
// Modules are needed for all minidumps, but they are enumerated elsewhere
// so we don't need to duplicate effort; thus we do noting with m_pModule.
// For MiniDumpNormal, we only want the file name.
if (m_pFile.IsValid())
{
m_pFile->EnumMemoryRegions(flags);
}
if (flags != CLRDATA_ENUM_MEM_MINI && flags != CLRDATA_ENUM_MEM_TRIAGE
&& m_pDomain.IsValid())
{
m_pDomain->EnumMemoryRegions(flags, true);
}
}
void
DomainAssembly::EnumMemoryRegions(CLRDataEnumMemoryFlags flags)
{
SUPPORTS_DAC;
//sizeof(DomainAssembly) == 0xe0
DAC_ENUM_VTHIS();
DomainFile::EnumMemoryRegions(flags);
// For minidumps without full memory, we need to always be able to iterate over m_Modules.
m_Modules.EnumMemoryRegions(flags);
if (flags != CLRDATA_ENUM_MEM_MINI && flags != CLRDATA_ENUM_MEM_TRIAGE)
{
if (m_pAssembly.IsValid())
{
m_pAssembly->EnumMemoryRegions(flags);
}
}
}
#ifdef FEATURE_MULTIMODULE_ASSEMBLIES
void
DomainModule::EnumMemoryRegions(CLRDataEnumMemoryFlags flags)
{
SUPPORTS_DAC;
DomainFile::EnumMemoryRegions(flags);
if (m_pDomainAssembly.IsValid())
{
m_pDomainAssembly->EnumMemoryRegions(flags);
}
}
#endif // FEATURE_MULTIMODULE_ASSEMBLIES
#endif // #ifdef DACCESS_COMPILE
#if defined(FEATURE_MIXEDMODE) && !defined(CROSSGEN_COMPILE)
LPVOID DomainFile::GetUMThunk(LPVOID pManagedIp, PCCOR_SIGNATURE pSig, ULONG cSig)
{
CONTRACT (LPVOID)
{
INSTANCE_CHECK;
THROWS;
GC_TRIGGERS;
MODE_ANY;
INJECT_FAULT(COMPlusThrowOM());
POSTCONDITION(CheckPointer(RETVAL, NULL_OK));
}
CONTRACT_END
if (m_pUMThunkHash == NULL)
{
UMThunkHash *pUMThunkHash = new UMThunkHash(GetModule(), this->GetAppDomain());
if (FastInterlockCompareExchangePointer(&m_pUMThunkHash, pUMThunkHash, NULL) != NULL)
{
delete pUMThunkHash;
}
}
RETURN m_pUMThunkHash->GetUMThunk(pManagedIp, pSig, cSig);
}
#endif // FEATURE_MIXEDMODE && !CROSSGEN_COMPILE
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