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binder.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.
#include "common.h"
#include "binder.h"
#include "ecall.h"
#include "qcall.h"
#include "field.h"
#include "excep.h"
#include "eeconfig.h"
#include "runtimehandles.h"
#include "customattribute.h"
#include "debugdebugger.h"
#include "dllimport.h"
#include "clrvarargs.h"
#include "sigbuilder.h"
#include "olevariant.h"
#include "configuration.h"
//
// Retrieve structures from ID.
//
NOINLINE PTR_MethodTable CoreLibBinder::LookupClass(BinderClassID id)
{
WRAPPER_NO_CONTRACT;
return (&g_CoreLib)->LookupClassLocal(id);
}
PTR_MethodTable CoreLibBinder::GetClassLocal(BinderClassID id)
{
WRAPPER_NO_CONTRACT;
PTR_MethodTable pMT = VolatileLoad(&(m_pClasses[id]));
if (pMT == NULL)
return LookupClassLocal(id);
return pMT;
}
PTR_MethodTable CoreLibBinder::LookupClassLocal(BinderClassID id)
{
CONTRACTL
{
THROWS;
GC_TRIGGERS;
INJECT_FAULT(ThrowOutOfMemory());
PRECONDITION(id != CLASS__NIL);
PRECONDITION(id <= m_cClasses);
}
CONTRACTL_END;
PTR_MethodTable pMT = NULL;
// Binder methods are used for loading "known" types. Thus they are unlikely to be part
// of a recursive cycle. This is used too broadly to force manual overrides at every callsite.
OVERRIDE_TYPE_LOAD_LEVEL_LIMIT(CLASS_LOADED);
const CoreLibClassDescription *d = m_classDescriptions + (int)id;
LPCUTF8 nameSpace = d->nameSpace;
LPCUTF8 name = d->name;
LPCUTF8 nestedTypeMaybe = strchr(name, '+');
if (nestedTypeMaybe == NULL)
{
NameHandle nameHandle = NameHandle(nameSpace, name);
pMT = ClassLoader::LoadTypeByNameThrowing(GetModule()->GetAssembly(), &nameHandle).AsMethodTable();
}
else
{
// Handle the nested type scenario.
// The same NameHandle must be used to retain the scope to look for the nested type.
NameHandle nameHandle(GetModule(), mdtBaseType);
SString splitName(SString::Utf8, name, (COUNT_T)(nestedTypeMaybe - name));
nameHandle.SetName(nameSpace, splitName.GetUTF8());
// The side-effect of updating the scope in the NameHandle is the point of the call.
(void)ClassLoader::LoadTypeByNameThrowing(GetModule()->GetAssembly(), &nameHandle);
// Now load the nested type.
nameHandle.SetName("", nestedTypeMaybe + 1);
// We don't support nested types in nested types.
_ASSERTE(strchr(nameHandle.GetName(), '+') == NULL);
// We don't support nested types with explicit namespaces
_ASSERTE(strchr(nameHandle.GetName(), '.') == NULL);
pMT = ClassLoader::LoadTypeByNameThrowing(GetModule()->GetAssembly(), &nameHandle).AsMethodTable();
}
_ASSERTE(pMT->GetModule() == GetModule());
#ifndef DACCESS_COMPILE
VolatileStore(&m_pClasses[id], pMT);
#endif
return pMT;
}
NOINLINE MethodDesc * CoreLibBinder::LookupMethod(BinderMethodID id)
{
WRAPPER_NO_CONTRACT;
return (&g_CoreLib)->LookupMethodLocal(id);
}
MethodDesc * CoreLibBinder::GetMethodLocal(BinderMethodID id)
{
WRAPPER_NO_CONTRACT;
MethodDesc * pMD = VolatileLoad(&(m_pMethods[id]));
if (pMD == NULL)
return LookupMethodLocal(id);
return pMD;
}
MethodDesc * CoreLibBinder::LookupMethodLocal(BinderMethodID id)
{
CONTRACTL
{
THROWS;
GC_TRIGGERS;
INJECT_FAULT(ThrowOutOfMemory());
PRECONDITION(id != METHOD__NIL);
PRECONDITION(id <= m_cMethods);
}
CONTRACTL_END;
#ifndef DACCESS_COMPILE
MethodDesc * pMD = NULL;
const CoreLibMethodDescription *d = m_methodDescriptions + (id - 1);
MethodTable * pMT = GetClassLocal(d->classID);
_ASSERTE(pMT != NULL && "Couldn't find a type in System.Private.CoreLib!");
if (d->sig != NULL)
{
Signature sig = GetSignatureLocal(d->sig);
pMD = MemberLoader::FindMethod(pMT, d->name, sig.GetRawSig(), sig.GetRawSigLen(), GetModule());
}
else
{
pMD = MemberLoader::FindMethodByName(pMT, d->name);
}
PREFIX_ASSUME_MSGF(pMD != NULL, ("EE expects method to exist: %s:%s Sig pointer: %p\n", pMT->GetDebugClassName(), d->name, d->sig));
VolatileStore(&m_pMethods[id], pMD);
return pMD;
#else
DacNotImpl();
return NULL;
#endif
}
NOINLINE FieldDesc * CoreLibBinder::LookupField(BinderFieldID id)
{
WRAPPER_NO_CONTRACT;
return (&g_CoreLib)->LookupFieldLocal(id);
}
FieldDesc * CoreLibBinder::GetFieldLocal(BinderFieldID id)
{
WRAPPER_NO_CONTRACT;
FieldDesc * pFD = VolatileLoad(&(m_pFields[id]));
if (pFD == NULL)
return LookupFieldLocal(id);
return pFD;
}
FieldDesc * CoreLibBinder::LookupFieldLocal(BinderFieldID id)
{
CONTRACTL
{
THROWS;
GC_TRIGGERS;
INJECT_FAULT(ThrowOutOfMemory());
PRECONDITION(id != FIELD__NIL);
PRECONDITION(id <= m_cFields);
}
CONTRACTL_END;
FieldDesc * pFD = NULL;
const CoreLibFieldDescription *d = m_fieldDescriptions + (id - 1);
MethodTable * pMT = GetClassLocal(d->classID);
pFD = MemberLoader::FindField(pMT, d->name, NULL, 0, NULL);
#ifndef DACCESS_COMPILE
PREFIX_ASSUME_MSGF(pFD != NULL, ("EE expects field to exist: %s:%s\n", pMT->GetDebugClassName(), d->name));
VolatileStore(&(m_pFields[id]), pFD);
#endif
return pFD;
}
NOINLINE PTR_MethodTable CoreLibBinder::LookupClassIfExist(BinderClassID id)
{
CONTRACTL
{
GC_NOTRIGGER;
NOTHROW;
FORBID_FAULT;
MODE_ANY;
PRECONDITION(id != CLASS__NIL);
PRECONDITION(id <= (&g_CoreLib)->m_cClasses);
}
CONTRACTL_END;
// Run the class loader in non-load mode.
ENABLE_FORBID_GC_LOADER_USE_IN_THIS_SCOPE();
// Binder methods are used for loading "known" types. Thus they are unlikely to be part
// of a recursive cycle. This is used too broadly to force manual overrides at every callsite.
OVERRIDE_TYPE_LOAD_LEVEL_LIMIT(CLASS_LOADED);
const CoreLibClassDescription *d = (&g_CoreLib)->m_classDescriptions + (int)id;
PTR_MethodTable pMT = ClassLoader::LoadTypeByNameThrowing(GetModule()->GetAssembly(), d->nameSpace, d->name,
ClassLoader::ReturnNullIfNotFound, ClassLoader::DontLoadTypes, CLASS_LOAD_APPROXPARENTS).AsMethodTable();
_ASSERTE((pMT == NULL) || (pMT->GetModule() == GetModule()));
#ifndef DACCESS_COMPILE
if ((pMT != NULL) && pMT->IsFullyLoaded())
VolatileStore(&(g_CoreLib.m_pClasses[id]), pMT);
#endif
return pMT;
}
Signature CoreLibBinder::GetSignature(LPHARDCODEDMETASIG pHardcodedSig)
{
CONTRACTL
{
THROWS;
GC_TRIGGERS;
INJECT_FAULT(COMPlusThrowOM());
MODE_ANY;
}
CONTRACTL_END
// Make sure all HardCodedMetaSig's are global. Because there is no individual
// cleanup of converted binary sigs, using allocated HardCodedMetaSig's
// can lead to a quiet memory leak.
#ifdef _DEBUG_IMPL
// This #include workaround generates a monster boolean expression that compares
// "this" against the address of every global defined in metasig.h
if (! (0
#define METASIG_BODY(varname, types) || pHardcodedSig==&gsig_ ## varname
#include "metasig.h"
))
{
_ASSERTE(!"The HardCodedMetaSig struct can only be declared as a global in metasig.h.");
}
#endif
return (&g_CoreLib)->GetSignatureLocal(pHardcodedSig);
}
Signature CoreLibBinder::GetTargetSignature(LPHARDCODEDMETASIG pHardcodedSig)
{
CONTRACTL
{
THROWS;
GC_TRIGGERS;
INJECT_FAULT(COMPlusThrowOM());
MODE_ANY;
}
CONTRACTL_END
return (&g_CoreLib)->GetSignatureLocal(pHardcodedSig);
}
// Get the metasig, do a one-time conversion if necessary
Signature CoreLibBinder::GetSignatureLocal(LPHARDCODEDMETASIG pHardcodedSig)
{
CONTRACTL
{
THROWS;
GC_TRIGGERS;
INJECT_FAULT(COMPlusThrowOM());
MODE_ANY;
}
CONTRACTL_END
PTR_CBYTE pMetaSig = PTR_CBYTE((TADDR)VolatileLoad(&pHardcodedSig->m_pMetaSig));
// To minimize code and data size, the hardcoded metasigs are baked as much as possible
// at compile time. Only the signatures with type references require one-time conversion at runtime.
// the negative size means signature with unresolved type references
if ((INT8)*pMetaSig < 0)
{
#ifndef DACCESS_COMPILE
pMetaSig = ConvertSignature(pHardcodedSig, pMetaSig);
#else
DacNotImpl();
#endif
}
// The metasig has to be resolved at this point
INT8 cbSig = (INT8)*pMetaSig;
_ASSERTE(cbSig > 0);
#ifdef DACCESS_COMPILE
PCCOR_SIGNATURE pSig = (PCCOR_SIGNATURE)
DacInstantiateTypeByAddress(dac_cast<TADDR>(pMetaSig + 1),
cbSig,
true);
#else
PCCOR_SIGNATURE pSig = pMetaSig+1;
#endif
return Signature(pSig, cbSig);
}
#ifndef DACCESS_COMPILE
bool CoreLibBinder::ConvertType(const BYTE*& pSig, SigBuilder * pSigBuilder)
{
bool bSomethingResolved = false;
Again:
CorElementType type = (CorElementType)*pSig++;
switch (type)
{
case ELEMENT_TYPE_GENERICINST:
{
pSigBuilder->AppendElementType(type);
if (ConvertType(pSig, pSigBuilder))
bSomethingResolved = true;
int arity = *pSig++;
pSigBuilder->AppendData(arity);
for (int i = 0; i < arity; i++)
{
if (ConvertType(pSig, pSigBuilder))
bSomethingResolved = true;
}
}
break;
case ELEMENT_TYPE_BYREF:
case ELEMENT_TYPE_PTR:
case ELEMENT_TYPE_SZARRAY:
pSigBuilder->AppendElementType(type);
if (ConvertType(pSig, pSigBuilder))
bSomethingResolved = true;
break;
case ELEMENT_TYPE_CMOD_OPT:
case ELEMENT_TYPE_CMOD_REQD:
{
// The binder class id may overflow 1 byte. Use 2 bytes to encode it.
BinderClassID id = (BinderClassID)(*pSig + 0x100 * *(pSig + 1));
pSig += 2;
pSigBuilder->AppendElementType(type);
pSigBuilder->AppendToken(GetClassLocal(id)->GetCl());
bSomethingResolved = true;
}
goto Again;
case ELEMENT_TYPE_CLASS:
case ELEMENT_TYPE_VALUETYPE:
{
// The binder class id may overflow 1 byte. Use 2 bytes to encode it.
BinderClassID id = (BinderClassID)(*pSig + 0x100 * *(pSig + 1));
pSig += 2;
pSigBuilder->AppendElementType(type);
pSigBuilder->AppendToken(GetClassLocal(id)->GetCl());
bSomethingResolved = true;
}
break;
case ELEMENT_TYPE_VAR:
case ELEMENT_TYPE_MVAR:
{
pSigBuilder->AppendElementType(type);
pSigBuilder->AppendData(*pSig++);
}
break;
default:
pSigBuilder->AppendElementType(type);
break;
}
return bSomethingResolved;
}
//------------------------------------------------------------------
// Resolve type references in the hardcoded metasig.
// Returns a new signature with type references resolved.
//------------------------------------------------------------------
void CoreLibBinder::BuildConvertedSignature(const BYTE* pSig, SigBuilder * pSigBuilder)
{
CONTRACTL
{
STANDARD_VM_CHECK;
PRECONDITION(CheckPointer(pSig));
PRECONDITION(CheckPointer(pSigBuilder));
}
CONTRACTL_END
unsigned argCount;
unsigned callConv;
bool bSomethingResolved = false;
// calling convention
callConv = *pSig++;
pSigBuilder->AppendData(callConv);
if ((callConv & IMAGE_CEE_CS_CALLCONV_MASK) == IMAGE_CEE_CS_CALLCONV_DEFAULT) {
// arg count
argCount = *pSig++;
pSigBuilder->AppendData(argCount);
}
else {
if ((callConv & IMAGE_CEE_CS_CALLCONV_MASK) != IMAGE_CEE_CS_CALLCONV_FIELD)
THROW_BAD_FORMAT(BFA_BAD_SIGNATURE, (ModuleBase*)NULL);
argCount = 0;
}
if ((callConv & IMAGE_CEE_CS_CALLCONV_GENERIC) != 0)
{
unsigned genericArgCount = *pSig++;
pSigBuilder->AppendData(genericArgCount);
}
// <= because we want to include the return value or the field
for (unsigned i = 0; i <= argCount; i++) {
if (ConvertType(pSig, pSigBuilder))
bSomethingResolved = true;
}
_ASSERTE(bSomethingResolved);
}
const BYTE* CoreLibBinder::ConvertSignature(LPHARDCODEDMETASIG pHardcodedSig, const BYTE* pSig)
{
CONTRACTL
{
THROWS;
GC_TRIGGERS;
INJECT_FAULT(COMPlusThrowOM());
MODE_ANY;
}
CONTRACTL_END
GCX_PREEMP();
SigBuilder sigBuilder;
BuildConvertedSignature(pSig+1, &sigBuilder);
DWORD cbCount;
PVOID pSignature = sigBuilder.GetSignature(&cbCount);
{
CrstHolder ch(&s_SigConvertCrst);
if (*(INT8*)pHardcodedSig->m_pMetaSig < 0) {
BYTE* pResolved = (BYTE*)(void*)(SystemDomain::GetGlobalLoaderAllocator()->GetHighFrequencyHeap()->AllocMem(S_SIZE_T(1) + S_SIZE_T(cbCount)));
_ASSERTE(FitsIn<INT8>(cbCount));
*(INT8*)pResolved = static_cast<INT8>(cbCount);
CopyMemory(pResolved+1, pSignature, cbCount);
// this has to be last, overwrite the pointer to the metasig with the resolved one
VolatileStore<const BYTE *>(&const_cast<HardCodedMetaSig *>(pHardcodedSig)->m_pMetaSig, pResolved);
}
}
return pHardcodedSig->m_pMetaSig;
}
#endif // #ifndef DACCESS_COMPILE
#ifdef _DEBUG
void CoreLibBinder::TriggerGCUnderStress()
{
CONTRACTL
{
THROWS;
GC_TRIGGERS;
INJECT_FAULT(ThrowOutOfMemory());
}
CONTRACTL_END;
#ifndef DACCESS_COMPILE
_ASSERTE (GetThreadNULLOk());
TRIGGERSGC ();
// Force a GC here because GetClass could trigger GC nondeterministicly
if (g_pConfig->GetGCStressLevel() != 0)
{
DEBUG_ONLY_REGION();
Thread * pThread = GetThread();
BOOL bInCoopMode = pThread->PreemptiveGCDisabled ();
GCX_COOP ();
if (bInCoopMode)
{
pThread->PulseGCMode ();
}
}
#endif //DACCESS_COMPILE
}
#endif // _DEBUG
DWORD CoreLibBinder::GetFieldOffset(BinderFieldID id)
{
WRAPPER_NO_CONTRACT;
return GetField(id)->GetOffset();
}
#ifndef DACCESS_COMPILE
CrstStatic CoreLibBinder::s_SigConvertCrst;
/*static*/
void CoreLibBinder::Startup()
{
WRAPPER_NO_CONTRACT
s_SigConvertCrst.Init(CrstSigConvert);
}
#if defined(_DEBUG)
// NoClass is used to suppress check for unmanaged and managed size match
#define NoClass char[USHRT_MAX]
const CoreLibBinder::OffsetAndSizeCheck CoreLibBinder::OffsetsAndSizes[] =
{
#define DEFINE_CLASS_U(nameSpace, stringName, unmanagedType) \
{ PTR_CSTR((TADDR) g_ ## nameSpace ## NS ), PTR_CUTF8((TADDR) # stringName), sizeof(unmanagedType), 0, 0, 0 },
#define DEFINE_FIELD_U(stringName, unmanagedContainingType, unmanagedOffset) \
{ 0, 0, 0, PTR_CUTF8((TADDR) # stringName), offsetof(unmanagedContainingType, unmanagedOffset), sizeof(((unmanagedContainingType*)1)->unmanagedOffset) },
#include "corelib.h"
};
namespace
{
bool FeatureSwitchDisabled(LPCWSTR featureSwitch, bool enabledValue, bool defaultValue)
{
// If we don't have a feature switch, treat the switch as enabled.
return featureSwitch != nullptr &&
Configuration::GetKnobBooleanValue(featureSwitch, defaultValue) != enabledValue;
}
bool IsTrimmed(LPCSTR nameSpace, LPCSTR className)
{
bool isInDisabledFeatureSwitch = false;
#define BEGIN_ILLINK_FEATURE_SWITCH(s, e, d) isInDisabledFeatureSwitch = FeatureSwitchDisabled(W(#s), e, d);
#define END_ILLINK_FEATURE_SWITCH() isInDisabledFeatureSwitch = false;
#define DEFINE_CLASS_U(ns, stringName, unmanagedType) \
if (strcmp(nameSpace, g_ ## ns ## NS) == 0 \
&& strcmp(className, #stringName) == 0) \
return isInDisabledFeatureSwitch;
#include "corelib.h"
return false;
}
}
//
// check the basic consistency between CoreLib and VM
//
void CoreLibBinder::Check()
{
STANDARD_VM_CONTRACT;
MethodTable * pMT = NULL;
bool currentTypeTrimmed = false;
for (unsigned i = 0; i < ARRAY_SIZE(OffsetsAndSizes); i++)
{
const OffsetAndSizeCheck * p = OffsetsAndSizes + i;
if (p->className != NULL)
{
currentTypeTrimmed = IsTrimmed(p->classNameSpace, p->className);
if (currentTypeTrimmed)
continue;
LPCUTF8 nameSpace = p->classNameSpace;
LPCUTF8 name = p->className;
LPCUTF8 nestedTypeMaybe = strchr(name, '+');
if (nestedTypeMaybe == NULL)
{
NameHandle nameHandle = NameHandle(nameSpace, name);
pMT = ClassLoader::LoadTypeByNameThrowing(GetModule()->GetAssembly(), &nameHandle).AsMethodTable();
}
else
{
// Handle the nested type scenario.
// The same NameHandle must be used to retain the scope to look for the nested type.
NameHandle nameHandle(GetModule(), mdtBaseType);
SString splitName(SString::Utf8, name, (COUNT_T)(nestedTypeMaybe - name));
nameHandle.SetName(nameSpace, splitName.GetUTF8());
// The side-effect of updating the scope in the NameHandle is the point of the call.
(void)ClassLoader::LoadTypeByNameThrowing(GetModule()->GetAssembly(), &nameHandle);
// Now load the nested type.
nameHandle.SetName("", nestedTypeMaybe + 1);
// We don't support nested types in nested types.
_ASSERTE(strchr(nameHandle.GetName(), '+') == NULL);
// We don't support nested types with explicit namespaces
_ASSERTE(strchr(nameHandle.GetName(), '.') == NULL);
pMT = ClassLoader::LoadTypeByNameThrowing(GetModule()->GetAssembly(), &nameHandle).AsMethodTable();
}
if (p->expectedClassSize == sizeof(NoClass))
continue;
// hidden size of the type that participates in the alignment calculation
DWORD hiddenSize = pMT->IsValueType() ? sizeof(MethodTable*) : 0;
DWORD size = pMT->GetBaseSize() - (sizeof(ObjHeader)+hiddenSize);
DWORD expectedsize = (DWORD)ALIGN_UP(p->expectedClassSize + (sizeof(ObjHeader) + hiddenSize),
DATA_ALIGNMENT) - (sizeof(ObjHeader) + hiddenSize);
CONSISTENCY_CHECK_MSGF(size == expectedsize,
("Managed object size does not match unmanaged object size\n"
"man: 0x%x, unman: 0x%x, Name: %s\n", size, expectedsize, pMT->GetDebugClassName()));
}
else
if (p->fieldName != NULL && !currentTypeTrimmed)
{
// This assert will fire if there is DEFINE_FIELD_U macro without preceding DEFINE_CLASS_U macro in corelib.h
_ASSERTE(pMT != NULL);
FieldDesc * pFD = MemberLoader::FindField(pMT, p->fieldName, NULL, 0, NULL);
_ASSERTE(pFD != NULL);
DWORD offset = pFD->GetOffset();
if (!pFD->IsFieldOfValueType())
{
offset += Object::GetOffsetOfFirstField();
}
CONSISTENCY_CHECK_MSGF(offset == p->expectedFieldOffset,
("Managed class field offset does not match unmanaged class field offset\n"
"man: 0x%x, unman: 0x%x, Class: %s, Name: %s\n", offset, p->expectedFieldOffset, pFD->GetApproxEnclosingMethodTable()->GetDebugClassName(), pFD->GetName()));
DWORD size = pFD->LoadSize();
CONSISTENCY_CHECK_MSGF(size == p->expectedFieldSize,
("Managed class field size does not match unmanaged class field size\n"
"man: 0x%x, unman: 0x%x, Class: %s, Name: %s\n", size, p->expectedFieldSize, pFD->GetApproxEnclosingMethodTable()->GetDebugClassName(), pFD->GetName()));
}
}
}
#ifdef CHECK_FCALL_SIGNATURE
//
// check consistency of the unmanaged and managed fcall signatures
//
/* static */ FCSigCheck* FCSigCheck::g_pFCSigCheck;
const char * aType[] =
{
"void",
"FC_BOOL_RET",
"CLR_BOOL",
"FC_CHAR_RET",
"CLR_CHAR",
"FC_INT8_RET",
"INT8",
"FC_UINT8_RET",
"UINT8",
"FC_INT16_RET",
"INT16",
"FC_UINT16_RET",
"UINT16",
"INT64",
"VINT64",
"UINT64",
"VUINT64",
"float",
"Vfloat",
"double",
"Vdouble"
};
const char * aInt32Type[] =
{
"INT32",
"UINT32", // we might remove it to have a better check
"int",
"unsigned int", // we might remove it to have a better check
"DWORD", // we might remove it to have a better check
"HRESULT", // we might remove it to have a better check
"mdToken", // we might remove it to have a better check
"ULONG", // we might remove it to have a better check
"mdMemberRef", // we might remove it to have a better check
"mdCustomAttribute", // we might remove it to have a better check
"mdTypeDef", // we might remove it to have a better check
"mdFieldDef", // we might remove it to have a better check
"LONG",
"CLR_I4",
"LCID" // we might remove it to have a better check
};
const char * aUInt32Type[] =
{
"UINT32",
"unsigned int",
"DWORD",
"INT32", // we might remove it to have a better check
"ULONG"
};
static BOOL IsStrInArray(const char* sStr, size_t len, const char* aStrArray[], int nSize)
{
STANDARD_VM_CONTRACT;
for (int i = 0; i < nSize; i++)
{
if (SString::_strnicmp(aStrArray[i], sStr, (COUNT_T)len) == 0)
{
return TRUE;
}
}
return FALSE;
}
static void FCallCheckSignature(MethodDesc* pMD, PCODE pImpl)
{
STANDARD_VM_CONTRACT;
const char* pUnmanagedSig = NULL;
FCSigCheck* pSigCheck = FCSigCheck::g_pFCSigCheck;
while (pSigCheck != NULL)
{
if (pImpl == (PCODE)pSigCheck->func) {
pUnmanagedSig = pSigCheck->signature;
break;
}
pSigCheck = pSigCheck->next;
}
MetaSig msig(pMD);
int argIndex = -2; // start with return value
int enregisteredArguments = 0;
const char* pUnmanagedArg = pUnmanagedSig;
for (;;)
{
CorElementType argType = ELEMENT_TYPE_END;
TypeHandle argTypeHandle;
if (argIndex == -2)
{
// return value
argType = msig.GetReturnType();
if (argType == ELEMENT_TYPE_VALUETYPE)
argTypeHandle = msig.GetRetTypeHandleThrowing();
}
if (argIndex == -1)
{
// this ptr
if (msig.HasThis())
argType = ELEMENT_TYPE_CLASS;
else
argIndex++; // move on to the first argument
}
if (argIndex >= 0)
{
argType = msig.NextArg();
if (argType == ELEMENT_TYPE_END)
break;
if (argType == ELEMENT_TYPE_VALUETYPE)
argTypeHandle = msig.GetLastTypeHandleThrowing();
}
const char* expectedType = NULL;
switch (argType)
{
case ELEMENT_TYPE_VOID:
expectedType = pMD->IsCtor() ? NULL : "void";
break;
case ELEMENT_TYPE_BOOLEAN:
expectedType = (argIndex == -2) ? "FC_BOOL_RET" : "FC_BOOL_ARG";
break;
case ELEMENT_TYPE_CHAR:
expectedType = (argIndex == -2) ? "FC_CHAR_RET" : "FC_CHAR_ARG";
break;
case ELEMENT_TYPE_I1:
expectedType = (argIndex == -2) ? "FC_INT8_RET" : "FC_INT8_ARG";
break;
case ELEMENT_TYPE_U1:
expectedType = (argIndex == -2) ? "FC_UINT8_RET" : "FC_UINT8_ARG";
break;
case ELEMENT_TYPE_I2:
expectedType = (argIndex == -2) ? "FC_INT16_RET" : "FC_INT16_ARG";
break;
case ELEMENT_TYPE_U2:
expectedType = (argIndex == -2) ? "FC_UINT16_RET" : "FC_UINT16_ARG";
break;
//case ELEMENT_TYPE_I4:
// expectedType = "INT32";
// break;
// case ELEMENT_TYPE_U4:
// expectedType = "UINT32";
// break;
// See the comments in fcall.h on what the "V" prefix means.
case ELEMENT_TYPE_I8:
expectedType = ((argIndex == -2) || (enregisteredArguments >= 2)) ? "INT64" : "VINT64";
break;
case ELEMENT_TYPE_U8:
expectedType = ((argIndex == -2) || (enregisteredArguments >= 2)) ? "UINT64" : "VUINT64";
break;
case ELEMENT_TYPE_R4:
expectedType = ((argIndex == -2) || (enregisteredArguments >= 2)) ? "float" : "Vfloat";
break;
case ELEMENT_TYPE_R8:
expectedType = ((argIndex == -2) || (enregisteredArguments >= 2)) ? "double" : "Vdouble";
break;
default:
// no checks for other types
break;
}
// Count number of enregistered arguments for x86
if ((argIndex != -2) && !((expectedType != NULL) && (*expectedType == 'V')))
{
enregisteredArguments++;
}
if (pUnmanagedSig != NULL)
{
CONSISTENCY_CHECK_MSGF(pUnmanagedArg != NULL,
("Unexpected end of managed fcall signature\n"
"Method: %s:%s\n", pMD->m_pszDebugClassName, pMD->m_pszDebugMethodName));
const char* pUnmanagedArgEnd = strchr(pUnmanagedArg, ',');
const char* pUnmanagedTypeEnd = (pUnmanagedArgEnd != NULL) ?
pUnmanagedArgEnd : (pUnmanagedArg + strlen(pUnmanagedArg));
if (argIndex != -2)
{
// skip argument name
while(pUnmanagedTypeEnd > pUnmanagedArg)
{
char c = *(pUnmanagedTypeEnd-1);
if ((c != '_')
&& ((c < '0') || ('9' < c))
&& ((c < 'a') || ('z' < c))
&& ((c < 'A') || ('Z' < c)))
break;
pUnmanagedTypeEnd--;
}
}
// skip whitespaces
while(pUnmanagedTypeEnd > pUnmanagedArg)
{
char c = *(pUnmanagedTypeEnd-1);
if ((c != 0x20) && (c != '\t') && (c != '\n') && (c != '\r'))
break;
pUnmanagedTypeEnd--;
}
size_t len = pUnmanagedTypeEnd - pUnmanagedArg;
// generate the unmanaged argument signature to show them in the error message if possible
StackSString ssUnmanagedType(SString::Ascii, pUnmanagedArg, (COUNT_T)len);
const char * pUnManagedType = ssUnmanagedType.GetUTF8();
if (expectedType != NULL)
{
// when managed type is well known
if (!(strlen(expectedType) == len && SString::_strnicmp(expectedType, pUnmanagedArg, (COUNT_T)len) == 0))
{
minipal_log_print_error("CheckExtended: The managed and unmanaged fcall signatures do not match, Method: %s:%s. Argument: %d Expecting: %s Actual: %s\n", pMD->m_pszDebugClassName, pMD->m_pszDebugMethodName, argIndex, expectedType, pUnManagedType);
}
}
else
{
// when managed type is not wellknown, we still can find sig mismatch if native type is a well known type
BOOL bSigError = false;
if (argType == ELEMENT_TYPE_VOID && pMD->IsCtor())
{
bSigError = false;
}
else if (argType == ELEMENT_TYPE_I4)
{
bSigError = !IsStrInArray(pUnmanagedArg, len, aInt32Type, ARRAY_SIZE(aInt32Type));
}
else if (argType == ELEMENT_TYPE_U4)
{
bSigError = !IsStrInArray(pUnmanagedArg, len, aUInt32Type, ARRAY_SIZE(aUInt32Type));
}
else if (argType == ELEMENT_TYPE_VALUETYPE)
{
// we already did special check for value type
bSigError = false;
}
else
{
bSigError = IsStrInArray(pUnmanagedArg, len, aType, ARRAY_SIZE(aType));
}
if (bSigError)
{
minipal_log_print_error("CheckExtended: The managed and unmanaged fcall signatures do not match, Method: %s:%s. Argument: %d Expecting: (CorElementType)%d actual: %s\n", pMD->m_pszDebugClassName, pMD->m_pszDebugMethodName, argIndex, argType, pUnManagedType);
}
}
pUnmanagedArg = (pUnmanagedArgEnd != NULL) ? (pUnmanagedArgEnd+1) : NULL;
}
argIndex++;
}
if (pUnmanagedSig != NULL)
{
if (msig.IsVarArg())
{
if (!((pUnmanagedArg != NULL) && strcmp(pUnmanagedArg, "...") == 0))
{
minipal_log_print_error("CheckExtended: Expecting varargs in unmanaged fcall signature, Method: %s:%s\n", pMD->m_pszDebugClassName, pMD->m_pszDebugMethodName);
}
}
else
{
if (!(pUnmanagedArg == NULL))
{
minipal_log_print_error("CheckExtended: Unexpected end of unmanaged fcall signature, Method: %s:%s\n", pMD->m_pszDebugClassName, pMD->m_pszDebugMethodName);
}
}
}
}
#endif // CHECK_FCALL_SIGNATURE
namespace
{
bool IsTrimmed(BinderClassID classId)
{
LPCWSTR featureSwitch = nullptr;
bool enabledValue = true;
bool defaultValue = true;
#define DEFINE_CLASS(i,n,s) if (classId == CLASS__ ## i) \
return FeatureSwitchDisabled(featureSwitch, enabledValue, defaultValue);
#define BEGIN_ILLINK_FEATURE_SWITCH(s, e, d) featureSwitch = W(#s); enabledValue = e; defaultValue = d;
#define END_ILLINK_FEATURE_SWITCH() featureSwitch = nullptr;
#include "corelib.h"
return false;
}
bool IsTrimmed(BinderMethodID methodId)
{
LPCWSTR featureSwitch = nullptr;
bool enabledValue = true;
bool defaultValue = true;
#define DEFINE_METHOD(c,i,s,g) if (methodId == METHOD__ ## c ## __ ## i) \
return FeatureSwitchDisabled(featureSwitch, enabledValue, defaultValue);
#define BEGIN_ILLINK_FEATURE_SWITCH(s, e, d) featureSwitch = W(#s); enabledValue = e; defaultValue = d;
#define END_ILLINK_FEATURE_SWITCH() featureSwitch = nullptr;
#include "corelib.h"
return false;
}
extern bool IsTrimmed(BinderFieldID fieldId)
{
LPCWSTR featureSwitch = nullptr;
bool enabledValue = true;
bool defaultValue = true;