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jitinterface.cpp
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jitinterface.cpp
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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// ===========================================================================
// File: JITinterface.CPP
//
// ===========================================================================
#include "common.h"
#include "jitinterface.h"
#include "codeman.h"
#include "method.hpp"
#include "class.h"
#include "object.h"
#include "field.h"
#include "stublink.h"
#include "virtualcallstub.h"
#include "corjit.h"
#include "eeconfig.h"
#include "excep.h"
#include "log.h"
#include "excep.h"
#include "float.h" // for isnan
#include "dbginterface.h"
#include "dllimport.h"
#include "callconvbuilder.hpp"
#include "gcheaputilities.h"
#include "comdelegate.h"
#include "corprof.h"
#include "eeprofinterfaces.h"
#ifdef PROFILING_SUPPORTED
#include "proftoeeinterfaceimpl.h"
#include "eetoprofinterfaceimpl.h"
#include "eetoprofinterfaceimpl.inl"
#include "profilepriv.h"
#include "rejit.h"
#endif // PROFILING_SUPPORTED
#include "ecall.h"
#include "generics.h"
#include "typestring.h"
#include "typedesc.h"
#include "genericdict.h"
#include "array.h"
#include "debuginfostore.h"
#include "safemath.h"
#include "runtimehandles.h"
#include "sigbuilder.h"
#include "openum.h"
#include "fieldmarshaler.h"
#ifdef HAVE_GCCOVER
#include "gccover.h"
#endif // HAVE_GCCOVER
#ifdef FEATURE_INTERPRETER
#include "interpreter.h"
#endif // FEATURE_INTERPRETER
#ifdef FEATURE_PERFMAP
#include "perfmap.h"
#endif
#ifdef FEATURE_PGO
#include "pgo.h"
#endif
#include "tailcallhelp.h"
// The Stack Overflow probe takes place in the COOPERATIVE_TRANSITION_BEGIN() macro
//
#define JIT_TO_EE_TRANSITION() MAKE_CURRENT_THREAD_AVAILABLE_EX(m_pThread); \
INSTALL_UNWIND_AND_CONTINUE_HANDLER_EX; \
COOPERATIVE_TRANSITION_BEGIN(); \
#define EE_TO_JIT_TRANSITION() COOPERATIVE_TRANSITION_END(); \
UNINSTALL_UNWIND_AND_CONTINUE_HANDLER_EX(true);
#define JIT_TO_EE_TRANSITION_LEAF()
#define EE_TO_JIT_TRANSITION_LEAF()
#ifdef DACCESS_COMPILE
// The real definitions are in jithelpers.cpp. However, those files are not included in the DAC build.
// Hence, we add them here.
GARY_IMPL(VMHELPDEF, hlpFuncTable, CORINFO_HELP_COUNT);
GARY_IMPL(VMHELPDEF, hlpDynamicFuncTable, DYNAMIC_CORINFO_HELP_COUNT);
#else // DACCESS_COMPILE
Volatile<int64_t> g_cbILJitted = 0;
Volatile<int64_t> g_cMethodsJitted = 0;
Volatile<int64_t> g_c100nsTicksInJit = 0;
thread_local int64_t t_cbILJittedForThread = 0;
thread_local int64_t t_cMethodsJittedForThread = 0;
thread_local int64_t t_c100nsTicksInJitForThread = 0;
// This prevents tearing of 64 bit values on 32 bit systems
static inline
int64_t AtomicLoad64WithoutTearing(int64_t volatile *valueRef)
{
WRAPPER_NO_CONTRACT;
#if TARGET_64BIT
return VolatileLoad(valueRef);
#else
return InterlockedCompareExchangeT((LONG64 volatile *)valueRef, (LONG64)0, (LONG64)0);
#endif // TARGET_64BIT
}
FCIMPL1(INT64, GetCompiledILBytes, CLR_BOOL currentThread)
{
FCALL_CONTRACT;
return currentThread ? t_cbILJittedForThread : AtomicLoad64WithoutTearing(&g_cbILJitted);
}
FCIMPLEND
FCIMPL1(INT64, GetCompiledMethodCount, CLR_BOOL currentThread)
{
FCALL_CONTRACT;
return currentThread ? t_cMethodsJittedForThread : AtomicLoad64WithoutTearing(&g_cMethodsJitted);
}
FCIMPLEND
FCIMPL1(INT64, GetCompilationTimeInTicks, CLR_BOOL currentThread)
{
FCALL_CONTRACT;
return currentThread ? t_c100nsTicksInJitForThread : AtomicLoad64WithoutTearing(&g_c100nsTicksInJit);
}
FCIMPLEND
/*********************************************************************/
inline CORINFO_MODULE_HANDLE GetScopeHandle(MethodDesc* method)
{
LIMITED_METHOD_CONTRACT;
if (method->IsDynamicMethod())
{
return MakeDynamicScope(method->AsDynamicMethodDesc()->GetResolver());
}
else
{
return GetScopeHandle(method->GetModule());
}
}
//This is common refactored code from within several of the access check functions.
static BOOL ModifyCheckForDynamicMethod(DynamicResolver *pResolver,
TypeHandle *pOwnerTypeForSecurity,
AccessCheckOptions::AccessCheckType *pAccessCheckType)
{
CONTRACTL {
STANDARD_VM_CHECK;
PRECONDITION(CheckPointer(pResolver));
PRECONDITION(CheckPointer(pOwnerTypeForSecurity));
PRECONDITION(CheckPointer(pAccessCheckType));
PRECONDITION(*pAccessCheckType == AccessCheckOptions::kNormalAccessibilityChecks);
} CONTRACTL_END;
BOOL doAccessCheck = TRUE;
//Do not blindly initialize fields, since they've already got important values.
DynamicResolver::SecurityControlFlags dwSecurityFlags = DynamicResolver::Default;
TypeHandle dynamicOwner;
pResolver->GetJitContext(&dwSecurityFlags, &dynamicOwner);
if (!dynamicOwner.IsNull())
*pOwnerTypeForSecurity = dynamicOwner;
if (dwSecurityFlags & DynamicResolver::SkipVisibilityChecks)
{
doAccessCheck = FALSE;
}
else if (dwSecurityFlags & DynamicResolver::RestrictedSkipVisibilityChecks)
{
*pAccessCheckType = AccessCheckOptions::kRestrictedMemberAccessNoTransparency;
}
else
{
*pAccessCheckType = AccessCheckOptions::kNormalAccessNoTransparency;
}
return doAccessCheck;
}
TransientMethodDetails::TransientMethodDetails(MethodDesc* pMD, _In_opt_ COR_ILMETHOD_DECODER* header, CORINFO_MODULE_HANDLE scope)
: Method{ pMD }
, Header{ header }
, Scope{ scope }
{
LIMITED_METHOD_CONTRACT;
_ASSERTE(Method != NULL);
_ASSERTE(Scope == NULL || IsDynamicScope(Scope));
}
TransientMethodDetails::TransientMethodDetails(TransientMethodDetails&& other)
{
LIMITED_METHOD_CONTRACT;
*this = std::move(other);
}
TransientMethodDetails::~TransientMethodDetails()
{
CONTRACTL
{
NOTHROW;
GC_NOTRIGGER;
MODE_ANY;
}
CONTRACTL_END;
// If the supplied scope is dynamic, release resources.
if (IsDynamicScope(Scope))
{
DynamicResolver* resolver = GetDynamicResolver(Scope);
resolver->FreeCompileTimeState();
delete resolver;
}
}
TransientMethodDetails& TransientMethodDetails::operator=(TransientMethodDetails&& other)
{
LIMITED_METHOD_CONTRACT;
if (this != &other)
{
Method = other.Method;
Header = other.Header;
Scope = other.Scope;
other.Method = NULL;
other.Header = NULL;
other.Scope = NULL;
}
return *this;
}
/*****************************************************************************/
// Initialize from data we passed across to the JIT
void CEEInfo::GetTypeContext(const CORINFO_SIG_INST *info, SigTypeContext *pTypeContext)
{
LIMITED_METHOD_CONTRACT;
SigTypeContext::InitTypeContext(
Instantiation((TypeHandle *) info->classInst, info->classInstCount),
Instantiation((TypeHandle *) info->methInst, info->methInstCount),
pTypeContext);
}
MethodDesc* CEEInfo::GetMethodFromContext(CORINFO_CONTEXT_HANDLE context)
{
LIMITED_METHOD_CONTRACT;
if (context == METHOD_BEING_COMPILED_CONTEXT())
return m_pMethodBeingCompiled;
if (((size_t) context & CORINFO_CONTEXTFLAGS_MASK) == CORINFO_CONTEXTFLAGS_CLASS)
{
return NULL;
}
else
{
return GetMethod((CORINFO_METHOD_HANDLE)((size_t) context & ~CORINFO_CONTEXTFLAGS_MASK));
}
}
TypeHandle CEEInfo::GetTypeFromContext(CORINFO_CONTEXT_HANDLE context)
{
LIMITED_METHOD_CONTRACT;
if (context == METHOD_BEING_COMPILED_CONTEXT())
return m_pMethodBeingCompiled->GetMethodTable();
if (((size_t) context & CORINFO_CONTEXTFLAGS_MASK) == CORINFO_CONTEXTFLAGS_CLASS)
{
return TypeHandle((CORINFO_CLASS_HANDLE) ((size_t) context & ~CORINFO_CONTEXTFLAGS_MASK));
}
else
{
return GetMethod((CORINFO_METHOD_HANDLE)((size_t)context & ~CORINFO_CONTEXTFLAGS_MASK))->GetMethodTable();
}
}
// Initialize from a context parameter passed to the JIT and back. This is a parameter
// that indicates which method is being jitted.
void CEEInfo::GetTypeContext(CORINFO_CONTEXT_HANDLE context, SigTypeContext *pTypeContext)
{
CONTRACTL
{
NOTHROW;
GC_NOTRIGGER;
MODE_ANY;
PRECONDITION(context != NULL);
}
CONTRACTL_END;
MethodDesc* pMD = GetMethodFromContext(context);
if (pMD != NULL)
{
SigTypeContext::InitTypeContext(pMD, pTypeContext);
}
else
{
SigTypeContext::InitTypeContext(GetTypeFromContext(context), pTypeContext);
}
}
/*********************************************************************/
// This normalizes EE type information into the form expected by the JIT.
//
// If typeHnd contains exact type information, then *clsRet will contain
// the normalized CORINFO_CLASS_HANDLE information on return.
// Static
CorInfoType CEEInfo::asCorInfoType(CorElementType eeType,
TypeHandle typeHnd, /* optional in */
CORINFO_CLASS_HANDLE *clsRet/* optional out */ ) {
CONTRACT(CorInfoType) {
THROWS;
GC_TRIGGERS;
PRECONDITION((CorTypeInfo::IsGenericVariable(eeType)) ==
(!typeHnd.IsNull() && typeHnd.IsGenericVariable()));
PRECONDITION(eeType != ELEMENT_TYPE_GENERICINST);
} CONTRACT_END;
TypeHandle typeHndUpdated = typeHnd;
if (!typeHnd.IsNull())
{
CorElementType normType = typeHnd.GetInternalCorElementType();
// If we have a type handle, then it has the better type
// in some cases
if (eeType == ELEMENT_TYPE_VALUETYPE && !CorTypeInfo::IsObjRef(normType))
eeType = normType;
// Zap the typeHnd when the type _really_ is a primitive
// as far as verification is concerned. Returning a null class
// handle means it is a primitive.
//
// Enums are exactly like primitives, even from a verification standpoint,
// so we zap the type handle in this case.
//
// However RuntimeTypeHandle etc. are reported as E_T_INT (or something like that)
// but don't count as primitives as far as verification is concerned...
//
// To make things stranger, TypedReference returns true for "IsTruePrimitive".
// However the JIT likes us to report the type handle in that case.
if (!typeHnd.IsTypeDesc() && (
(typeHnd.AsMethodTable()->IsTruePrimitive() && typeHnd != TypeHandle(g_TypedReferenceMT))
|| typeHnd.AsMethodTable()->IsEnum()) )
{
typeHndUpdated = TypeHandle();
}
}
static const BYTE map[] = {
CORINFO_TYPE_UNDEF,
CORINFO_TYPE_VOID,
CORINFO_TYPE_BOOL,
CORINFO_TYPE_CHAR,
CORINFO_TYPE_BYTE,
CORINFO_TYPE_UBYTE,
CORINFO_TYPE_SHORT,
CORINFO_TYPE_USHORT,
CORINFO_TYPE_INT,
CORINFO_TYPE_UINT,
CORINFO_TYPE_LONG,
CORINFO_TYPE_ULONG,
CORINFO_TYPE_FLOAT,
CORINFO_TYPE_DOUBLE,
CORINFO_TYPE_STRING,
CORINFO_TYPE_PTR, // PTR
CORINFO_TYPE_BYREF,
CORINFO_TYPE_VALUECLASS,
CORINFO_TYPE_CLASS,
CORINFO_TYPE_VAR, // VAR (type variable)
CORINFO_TYPE_CLASS, // ARRAY
CORINFO_TYPE_CLASS, // WITH
CORINFO_TYPE_REFANY,
CORINFO_TYPE_UNDEF, // VALUEARRAY_UNSUPPORTED
CORINFO_TYPE_NATIVEINT, // I
CORINFO_TYPE_NATIVEUINT, // U
CORINFO_TYPE_UNDEF, // R_UNSUPPORTED
// put the correct type when we know our implementation
CORINFO_TYPE_PTR, // FNPTR
CORINFO_TYPE_CLASS, // OBJECT
CORINFO_TYPE_CLASS, // SZARRAY
CORINFO_TYPE_VAR, // MVAR
CORINFO_TYPE_UNDEF, // CMOD_REQD
CORINFO_TYPE_UNDEF, // CMOD_OPT
CORINFO_TYPE_UNDEF, // INTERNAL
};
_ASSERTE(sizeof(map) == ELEMENT_TYPE_MAX);
_ASSERTE(eeType < (CorElementType) sizeof(map));
// spot check of the map
_ASSERTE((CorInfoType) map[ELEMENT_TYPE_I4] == CORINFO_TYPE_INT);
_ASSERTE((CorInfoType) map[ELEMENT_TYPE_PTR] == CORINFO_TYPE_PTR);
_ASSERTE((CorInfoType) map[ELEMENT_TYPE_TYPEDBYREF] == CORINFO_TYPE_REFANY);
CorInfoType res = ((unsigned)eeType < ELEMENT_TYPE_MAX) ? ((CorInfoType) map[(unsigned)eeType]) : CORINFO_TYPE_UNDEF;
if (clsRet)
*clsRet = CORINFO_CLASS_HANDLE(typeHndUpdated.AsPtr());
RETURN res;
}
inline static CorInfoType toJitType(TypeHandle typeHnd, CORINFO_CLASS_HANDLE *clsRet = NULL)
{
WRAPPER_NO_CONTRACT;
return CEEInfo::asCorInfoType(typeHnd.GetInternalCorElementType(), typeHnd, clsRet);
}
enum ConvToJitSigFlags : int
{
CONV_TO_JITSIG_FLAGS_NONE = 0x0,
CONV_TO_JITSIG_FLAGS_LOCALSIG = 0x1,
};
//---------------------------------------------------------------------------------------
//
//@GENERICS:
// The method handle is used to instantiate method and class type parameters
// It's also used to determine whether an extra dictionary parameter is required
//
// sig - Input metadata signature
// scopeHnd - The signature is to be interpreted in the context of this scope (module)
// token - Metadata token used to refer to the signature (may be mdTokenNil for dynamic methods)
// sigRet - Resulting output signature in a format that is understood by native compilers
// pContextMD - The method with any instantiation information (may be NULL)
// localSig - Is it a local variables declaration, or a method signature (with return type, etc).
// contextType - The type with any instantiaton information
//
static void ConvToJitSig(
PCCOR_SIGNATURE pSig,
DWORD cbSig,
CORINFO_MODULE_HANDLE scopeHnd,
mdToken token,
SigTypeContext* typeContext,
ConvToJitSigFlags flags,
CORINFO_SIG_INFO * sigRet)
{
CONTRACTL {
THROWS;
GC_TRIGGERS;
} CONTRACTL_END;
uint32_t sigRetFlags = 0;
static_assert_no_msg(CORINFO_CALLCONV_DEFAULT == (CorInfoCallConv) IMAGE_CEE_CS_CALLCONV_DEFAULT);
static_assert_no_msg(CORINFO_CALLCONV_VARARG == (CorInfoCallConv) IMAGE_CEE_CS_CALLCONV_VARARG);
static_assert_no_msg(CORINFO_CALLCONV_MASK == (CorInfoCallConv) IMAGE_CEE_CS_CALLCONV_MASK);
static_assert_no_msg(CORINFO_CALLCONV_HASTHIS == (CorInfoCallConv) IMAGE_CEE_CS_CALLCONV_HASTHIS);
TypeHandle typeHnd = TypeHandle();
sigRet->pSig = pSig;
sigRet->cbSig = cbSig;
sigRet->methodSignature = 0;
sigRet->retTypeClass = 0;
sigRet->retTypeSigClass = 0;
sigRet->scope = scopeHnd;
sigRet->token = token;
sigRet->sigInst.classInst = (CORINFO_CLASS_HANDLE *) typeContext->m_classInst.GetRawArgs();
sigRet->sigInst.classInstCount = (unsigned) typeContext->m_classInst.GetNumArgs();
sigRet->sigInst.methInst = (CORINFO_CLASS_HANDLE *) typeContext->m_methodInst.GetRawArgs();
sigRet->sigInst.methInstCount = (unsigned) typeContext->m_methodInst.GetNumArgs();
SigPointer sig(pSig, cbSig);
if ((flags & CONV_TO_JITSIG_FLAGS_LOCALSIG) == 0)
{
// This is a method signature which includes calling convention, return type,
// arguments, etc
_ASSERTE(!sig.IsNull());
Module * module = GetModule(scopeHnd);
uint32_t data;
IfFailThrow(sig.GetCallingConvInfo(&data));
sigRet->callConv = (CorInfoCallConv) data;
#if defined(TARGET_UNIX) || defined(TARGET_ARM)
if ((isCallConv(sigRet->callConv, IMAGE_CEE_CS_CALLCONV_VARARG)) ||
(isCallConv(sigRet->callConv, IMAGE_CEE_CS_CALLCONV_NATIVEVARARG)))
{
// This signature corresponds to a method that uses varargs, which are not supported.
COMPlusThrow(kInvalidProgramException, IDS_EE_VARARG_NOT_SUPPORTED);
}
#endif // defined(TARGET_UNIX) || defined(TARGET_ARM)
// Skip number of type arguments
if (sigRet->callConv & IMAGE_CEE_CS_CALLCONV_GENERIC)
IfFailThrow(sig.GetData(NULL));
uint32_t numArgs;
IfFailThrow(sig.GetData(&numArgs));
if (numArgs != (unsigned short) numArgs)
COMPlusThrowHR(COR_E_INVALIDPROGRAM);
sigRet->numArgs = (unsigned short) numArgs;
CorElementType type = sig.PeekElemTypeClosed(module, typeContext);
if (!CorTypeInfo::IsPrimitiveType(type))
{
typeHnd = sig.GetTypeHandleThrowing(module, typeContext);
_ASSERTE(!typeHnd.IsNull());
// I believe it doesn't make any diff. if this is
// GetInternalCorElementType or GetSignatureCorElementType
type = typeHnd.GetSignatureCorElementType();
}
sigRet->retType = CEEInfo::asCorInfoType(type, typeHnd, &sigRet->retTypeClass);
sigRet->retTypeSigClass = CORINFO_CLASS_HANDLE(typeHnd.AsPtr());
IfFailThrow(sig.SkipExactlyOne()); // must to a skip so we skip any class tokens associated with the return type
_ASSERTE(sigRet->retType < CORINFO_TYPE_COUNT);
sigRet->args = (CORINFO_ARG_LIST_HANDLE)sig.GetPtr();
}
else
{
// This is local variables declaration
sigRetFlags |= CORINFO_SIGFLAG_IS_LOCAL_SIG;
sigRet->callConv = CORINFO_CALLCONV_DEFAULT;
sigRet->retType = CORINFO_TYPE_VOID;
sigRet->numArgs = 0;
if (!sig.IsNull())
{
uint32_t callConv;
IfFailThrow(sig.GetCallingConvInfo(&callConv));
if (callConv != IMAGE_CEE_CS_CALLCONV_LOCAL_SIG)
{
COMPlusThrowHR(COR_E_BADIMAGEFORMAT, BFA_CALLCONV_NOT_LOCAL_SIG);
}
uint32_t numArgs;
IfFailThrow(sig.GetData(&numArgs));
if (numArgs != (unsigned short) numArgs)
COMPlusThrowHR(COR_E_INVALIDPROGRAM);
sigRet->numArgs = (unsigned short) numArgs;
}
sigRet->args = (CORINFO_ARG_LIST_HANDLE)sig.GetPtr();
}
// Set computed flags
sigRet->flags = sigRetFlags;
_ASSERTE(SigInfoFlagsAreValid(sigRet));
} // ConvToJitSig
//---------------------------------------------------------------------------------------
//
CORINFO_CLASS_HANDLE CEEInfo::getTokenTypeAsHandle (CORINFO_RESOLVED_TOKEN * pResolvedToken)
{
CONTRACTL {
THROWS;
GC_TRIGGERS;
MODE_PREEMPTIVE;
} CONTRACTL_END;
CORINFO_CLASS_HANDLE tokenType = NULL;
JIT_TO_EE_TRANSITION();
_ASSERTE((pResolvedToken->hMethod == NULL) || (pResolvedToken->hField == NULL));
BinderClassID classID = CLASS__TYPE_HANDLE;
if (pResolvedToken->hMethod != NULL)
{
classID = CLASS__METHOD_HANDLE;
}
else
if (pResolvedToken->hField != NULL)
{
classID = CLASS__FIELD_HANDLE;
}
tokenType = CORINFO_CLASS_HANDLE(CoreLibBinder::GetClass(classID));
EE_TO_JIT_TRANSITION();
return tokenType;
}
int CEEInfo::getStringLiteral (
CORINFO_MODULE_HANDLE moduleHnd,
mdToken metaTOK,
char16_t* buffer,
int bufferSize,
int startIndex)
{
CONTRACTL{
THROWS;
GC_TRIGGERS;
MODE_PREEMPTIVE;
} CONTRACTL_END;
Module* module = GetModule(moduleHnd);
_ASSERTE(bufferSize >= 0);
_ASSERTE(startIndex >= 0);
int result = -1;
JIT_TO_EE_TRANSITION();
if (IsDynamicScope(moduleHnd))
{
GCX_COOP();
STRINGREF strRef = GetDynamicResolver(moduleHnd)->GetStringLiteral(metaTOK);
if (strRef != NULL)
{
StringObject* strObj = STRINGREFToObject(strRef);
int length = (int)strObj->GetStringLength();
result = (length >= startIndex) ? (length - startIndex) : 0;
if (buffer != NULL && result != 0)
{
memcpyNoGCRefs(buffer, strObj->GetBuffer() + startIndex, min(bufferSize, result) * sizeof(char16_t));
}
}
}
else
{
ULONG dwCharCount;
LPCWSTR pString;
if (!FAILED((module)->GetMDImport()->GetUserString(metaTOK, &dwCharCount, NULL, &pString)))
{
_ASSERTE(dwCharCount >= 0 && dwCharCount <= INT_MAX);
int length = (int)dwCharCount;
result = (length >= startIndex) ? (length - startIndex) : 0;
if (buffer != NULL && result != 0)
{
memcpyNoGCRefs(buffer, pString + startIndex, min(bufferSize, result) * sizeof(char16_t));
}
}
}
EE_TO_JIT_TRANSITION();
return result;
}
size_t CEEInfo::printObjectDescription (
CORINFO_OBJECT_HANDLE handle,
char* buffer,
size_t bufferSize,
size_t* pRequiredBufferSize)
{
CONTRACTL{
THROWS;
GC_TRIGGERS;
MODE_PREEMPTIVE;
} CONTRACTL_END;
size_t bytesWritten = 0;
_ASSERT(handle != nullptr);
JIT_TO_EE_TRANSITION();
GCX_COOP();
OBJECTREF obj = getObjectFromJitHandle(handle);
StackSString stackStr;
// Currently only supported for String and RuntimeType
if (obj->GetMethodTable()->IsString())
{
((STRINGREF)obj)->GetSString(stackStr);
}
else if (obj->GetMethodTable() == g_pRuntimeTypeClass)
{
((REFLECTCLASSBASEREF)obj)->GetType().GetName(stackStr);
}
else
{
obj->GetMethodTable()->_GetFullyQualifiedNameForClass(stackStr);
}
const UTF8* utf8data = stackStr.GetUTF8();
if (bufferSize > 0)
{
bytesWritten = min<size_t>(bufferSize - 1, stackStr.GetCount());
memcpy((BYTE*)buffer, (BYTE*)utf8data, bytesWritten);
// Always null-terminate
buffer[bytesWritten] = 0;
}
if (pRequiredBufferSize != nullptr)
{
*pRequiredBufferSize = stackStr.GetCount() + 1;
}
EE_TO_JIT_TRANSITION();
return bytesWritten;
}
/* static */
size_t CEEInfo::findNameOfToken (Module* module,
mdToken metaTOK,
_Out_writes_ (FQNameCapacity) char * szFQName,
size_t FQNameCapacity)
{
CONTRACTL {
NOTHROW;
GC_TRIGGERS;
} CONTRACTL_END;
#ifdef _DEBUG
PCCOR_SIGNATURE sig = NULL;
DWORD cSig;
LPCUTF8 pszNamespace = NULL;
LPCUTF8 pszClassName = NULL;
mdToken tokType = TypeFromToken(metaTOK);
switch(tokType)
{
case mdtTypeRef:
{
if (FAILED(module->GetMDImport()->GetNameOfTypeRef(metaTOK, &pszNamespace, &pszClassName)))
{
pszNamespace = pszClassName = "Invalid TypeRef record";
}
ns::MakePath(szFQName, (int)FQNameCapacity, pszNamespace, pszClassName);
break;
}
case mdtTypeDef:
{
if (FAILED(module->GetMDImport()->GetNameOfTypeDef(metaTOK, &pszClassName, &pszNamespace)))
{
pszClassName = pszNamespace = "Invalid TypeDef record";
}
ns::MakePath(szFQName, (int)FQNameCapacity, pszNamespace, pszClassName);
break;
}
case mdtFieldDef:
{
LPCSTR szFieldName;
if (FAILED(module->GetMDImport()->GetNameOfFieldDef(metaTOK, &szFieldName)))
{
szFieldName = "Invalid FieldDef record";
}
strncpy_s(szFQName, FQNameCapacity, (char*)szFieldName, FQNameCapacity - 1);
break;
}
case mdtMethodDef:
{
LPCSTR szMethodName;
if (FAILED(module->GetMDImport()->GetNameOfMethodDef(metaTOK, &szMethodName)))
{
szMethodName = "Invalid MethodDef record";
}
strncpy_s(szFQName, FQNameCapacity, (char*)szMethodName, FQNameCapacity - 1);
break;
}
case mdtMemberRef:
{
LPCSTR szName;
if (FAILED(module->GetMDImport()->GetNameAndSigOfMemberRef((mdMemberRef)metaTOK, &sig, &cSig, &szName)))
{
szName = "Invalid MemberRef record";
}
strncpy_s(szFQName, FQNameCapacity, (char *)szName, FQNameCapacity - 1);
break;
}
default:
sprintf_s(szFQName, FQNameCapacity, "!TK_%x", metaTOK);
break;
}
#else // !_DEBUG
strncpy_s (szFQName, FQNameCapacity, "<UNKNOWN>", FQNameCapacity - 1);
#endif // _DEBUG
return strlen (szFQName);
}
CorInfoHelpFunc CEEInfo::getLazyStringLiteralHelper(CORINFO_MODULE_HANDLE handle)
{
CONTRACTL {
NOTHROW;
GC_NOTRIGGER;
MODE_PREEMPTIVE;
} CONTRACTL_END;
CorInfoHelpFunc result = CORINFO_HELP_UNDEF;
JIT_TO_EE_TRANSITION_LEAF();
result = IsDynamicScope(handle) ? CORINFO_HELP_UNDEF : CORINFO_HELP_STRCNS;
EE_TO_JIT_TRANSITION_LEAF();
return result;
}
CHECK CheckContext(CORINFO_MODULE_HANDLE scopeHnd, CORINFO_CONTEXT_HANDLE context)
{
if (context != METHOD_BEING_COMPILED_CONTEXT())
{
CHECK_MSG(scopeHnd != NULL, "Illegal null scope");
CHECK_MSG(((size_t)context & ~CORINFO_CONTEXTFLAGS_MASK) != 0, "Illegal null context");
if (((size_t)context & CORINFO_CONTEXTFLAGS_MASK) == CORINFO_CONTEXTFLAGS_CLASS)
{
TypeHandle handle((CORINFO_CLASS_HANDLE)((size_t)context & ~CORINFO_CONTEXTFLAGS_MASK));
CHECK_MSG(handle.GetModule() == GetModule(scopeHnd), "Inconsistent scope and context");
}
else
{
MethodDesc* handle = (MethodDesc*)((size_t)context & ~CORINFO_CONTEXTFLAGS_MASK);
CHECK_MSG(handle->GetModule() == GetModule(scopeHnd), "Inconsistent scope and context");
}
}
CHECK_OK;
}
static DECLSPEC_NORETURN void ThrowBadTokenException(CORINFO_RESOLVED_TOKEN * pResolvedToken)
{
switch (pResolvedToken->tokenType & CORINFO_TOKENKIND_Mask)
{
case CORINFO_TOKENKIND_Class:
COMPlusThrowHR(COR_E_BADIMAGEFORMAT, BFA_BAD_CLASS_TOKEN);
case CORINFO_TOKENKIND_Method:
COMPlusThrowHR(COR_E_BADIMAGEFORMAT, BFA_INVALID_METHOD_TOKEN);
case CORINFO_TOKENKIND_Field:
COMPlusThrowHR(COR_E_BADIMAGEFORMAT, BFA_BAD_FIELD_TOKEN);
default:
COMPlusThrowHR(COR_E_BADIMAGEFORMAT);
}
}
/*********************************************************************/
void CEEInfo::resolveToken(/* IN, OUT */ CORINFO_RESOLVED_TOKEN * pResolvedToken)
{
CONTRACTL {
THROWS;
GC_TRIGGERS;
MODE_PREEMPTIVE;
} CONTRACTL_END;
JIT_TO_EE_TRANSITION();
_ASSERTE(CheckContext(pResolvedToken->tokenScope, pResolvedToken->tokenContext));
pResolvedToken->pTypeSpec = NULL;
pResolvedToken->cbTypeSpec = 0;
pResolvedToken->pMethodSpec = NULL;
pResolvedToken->cbMethodSpec = 0;
TypeHandle th;
MethodDesc * pMD = NULL;
FieldDesc * pFD = NULL;
CorInfoTokenKind tokenType = pResolvedToken->tokenType;
if (IsDynamicScope(pResolvedToken->tokenScope))
{
ResolvedToken resolved{};
GetDynamicResolver(pResolvedToken->tokenScope)->ResolveToken(pResolvedToken->token, &resolved);
th = resolved.TypeHandle;
pMD = resolved.Method;
pFD = resolved.Field;
// Record supplied signatures.
if (!resolved.TypeSignature.IsNull())
resolved.TypeSignature.GetSignature(&pResolvedToken->pTypeSpec, &pResolvedToken->cbTypeSpec);
if (!resolved.MethodSignature.IsNull())
resolved.MethodSignature.GetSignature(&pResolvedToken->pMethodSpec, &pResolvedToken->cbMethodSpec);
//
// Check that we got the expected handles and fill in missing data if necessary
//
CorTokenType tkType = (CorTokenType)TypeFromToken(pResolvedToken->token);
if (pMD != NULL)
{
if ((tkType != mdtMethodDef) && (tkType != mdtMemberRef) && (tkType != mdtMethodSpec))
ThrowBadTokenException(pResolvedToken);
if ((tokenType & CORINFO_TOKENKIND_Method) == 0)
ThrowBadTokenException(pResolvedToken);
// if this is a BoxedEntryPointStub get the UnboxedEntryPoint one
if (pMD->IsUnboxingStub())
{
pMD = pMD->GetMethodTable()->GetUnboxedEntryPointMD(pMD);
}
// Activate target if required
if (tokenType != CORINFO_TOKENKIND_Ldtoken)
{
EnsureActive(th, pMD);
}
}
else if (pFD != NULL)
{
if ((tkType != mdtFieldDef) && (tkType != mdtMemberRef))
ThrowBadTokenException(pResolvedToken);
if ((tokenType & CORINFO_TOKENKIND_Field) == 0)
ThrowBadTokenException(pResolvedToken);
if (pFD->IsStatic() && (tokenType != CORINFO_TOKENKIND_Ldtoken))
{
EnsureActive(th);
}
}
else
{
if ((tkType != mdtTypeDef) && (tkType != mdtTypeRef))
ThrowBadTokenException(pResolvedToken);
if ((tokenType & CORINFO_TOKENKIND_Class) == 0)
ThrowBadTokenException(pResolvedToken);
if (th.IsNull())
ThrowBadTokenException(pResolvedToken);
if (tokenType == CORINFO_TOKENKIND_Box || tokenType == CORINFO_TOKENKIND_Constrained)
{
EnsureActive(th);
}
}
_ASSERTE((pMD == NULL) || (pFD == NULL));
_ASSERTE(!th.IsNull());
// "PermitUninstDefOrRef" check
if ((tokenType != CORINFO_TOKENKIND_Ldtoken) && th.ContainsGenericVariables())
{
COMPlusThrow(kInvalidProgramException);
}
}
else
{
mdToken metaTOK = pResolvedToken->token;
Module * pModule = GetModule(pResolvedToken->tokenScope);
switch (TypeFromToken(metaTOK))
{
case mdtModuleRef:
if ((tokenType & CORINFO_TOKENKIND_Class) == 0)
ThrowBadTokenException(pResolvedToken);
{
DomainAssembly *pTargetModule = pModule->LoadModule(metaTOK);
if (pTargetModule == NULL)
COMPlusThrowHR(COR_E_BADIMAGEFORMAT);
th = TypeHandle(pTargetModule->GetModule()->GetGlobalMethodTable());
if (th.IsNull())
COMPlusThrowHR(COR_E_BADIMAGEFORMAT);
}
break;
case mdtTypeDef:
case mdtTypeRef:
if ((tokenType & CORINFO_TOKENKIND_Class) == 0)
ThrowBadTokenException(pResolvedToken);
th = ClassLoader::LoadTypeDefOrRefThrowing(pModule, metaTOK,
ClassLoader::ThrowIfNotFound,
(tokenType == CORINFO_TOKENKIND_Ldtoken) ?
ClassLoader::PermitUninstDefOrRef : ClassLoader::FailIfUninstDefOrRef);
break;
case mdtTypeSpec:
{
if ((tokenType & CORINFO_TOKENKIND_Class) == 0)
ThrowBadTokenException(pResolvedToken);
IfFailThrow(pModule->GetMDImport()->GetTypeSpecFromToken(metaTOK, &pResolvedToken->pTypeSpec, (ULONG*)&pResolvedToken->cbTypeSpec));
SigTypeContext typeContext;
GetTypeContext(pResolvedToken->tokenContext, &typeContext);
SigPointer sigptr(pResolvedToken->pTypeSpec, pResolvedToken->cbTypeSpec);
th = sigptr.GetTypeHandleThrowing(pModule, &typeContext);
}
break;
case mdtMethodDef:
if ((tokenType & CORINFO_TOKENKIND_Method) == 0)
ThrowBadTokenException(pResolvedToken);