public static void Initialize()
{
#if FEATURE_GC_STRESS
// This method is called via binder-injected code in a module's DllMain. The OS guarantees that
// only one thread at a time is in any DllMain, so we should be thread-safe as a result.
if (Initialized)
{
return;
}
Initialized = true;
Head = new GCStress();
Tail = Head;
int size = 10;
for (int i = 0; i < size; i++)
{
Tail.Next = new GCStress();
Tail = Tail.Next;
}
// drop the first element
Head = Head.Next;
// notify redhawku.dll
InternalCalls.RhpInitializeGcStress();
#endif // FEATURE_GC_STRESS
}
public static void Initialize()
{
#if FEATURE_GC_STRESS
// This method is called via binder-injected code in a module's DllMain. The OS guarantees that
// only one thread at a time is in any DllMain, so we should be thread-safe as a result.
if (Initialized)
return;
Initialized = true;
Head = new GCStress();
Tail = Head;
int size = 10;
for (int i = 0; i < size; i++)
{
Tail.Next = new GCStress();
Tail = Tail.Next;
}
// drop the first element
Head = Head.Next;
// notify redhawku.dll
InternalCalls.RhpInitializeGcStress();
#endif // FEATURE_GC_STRESS
}
public static void RhThrowHwEx(uint exceptionCode, ref ExInfo exInfo)
{
// trigger a GC (only if gcstress) to ensure we can stackwalk at this point
GCStress.TriggerGC();
InternalCalls.RhpValidateExInfoStack();
IntPtr faultingCodeAddress = exInfo._pExContext->IP;
bool instructionFault = true;
ExceptionIDs exceptionId;
switch (exceptionCode)
{
case (uint)HwExceptionCode.STATUS_REDHAWK_NULL_REFERENCE:
exceptionId = ExceptionIDs.NullReference;
break;
case (uint)HwExceptionCode.STATUS_REDHAWK_WRITE_BARRIER_NULL_REFERENCE:
// The write barrier where the actual fault happened has been unwound already.
// The IP of this fault needs to be treated as return address, not as IP of
// faulting instruction.
instructionFault = false;
exceptionId = ExceptionIDs.NullReference;
break;
case (uint)HwExceptionCode.STATUS_DATATYPE_MISALIGNMENT:
exceptionId = ExceptionIDs.DataMisaligned;
break;
// N.B. -- AVs that have a read/write address lower than 64k are already transformed to
// HwExceptionCode.REDHAWK_NULL_REFERENCE prior to calling this routine.
case (uint)HwExceptionCode.STATUS_ACCESS_VIOLATION:
exceptionId = ExceptionIDs.AccessViolation;
break;
case (uint)HwExceptionCode.STATUS_INTEGER_DIVIDE_BY_ZERO:
exceptionId = ExceptionIDs.DivideByZero;
break;
case (uint)HwExceptionCode.STATUS_INTEGER_OVERFLOW:
exceptionId = ExceptionIDs.Overflow;
break;
default:
// We don't wrap SEH exceptions from foreign code like CLR does, so we believe that we
// know the complete set of HW faults generated by managed code and do not need to handle
// this case.
FailFastViaClasslib(RhFailFastReason.InternalError, null, faultingCodeAddress);
exceptionId = ExceptionIDs.NullReference;
break;
}
Exception exceptionToThrow = GetClasslibException(exceptionId, faultingCodeAddress);
exInfo.Init(exceptionToThrow, instructionFault);
DispatchEx(ref exInfo._frameIter, ref exInfo, MaxTryRegionIdx);
FallbackFailFast(RhFailFastReason.InternalError, null);
}
public static void RhRethrow(ref ExInfo activeExInfo, ref ExInfo exInfo)
{
// trigger a GC (only if gcstress) to ensure we can stackwalk at this point
GCStress.TriggerGC();
InternalCalls.RhpValidateExInfoStack();
// We need to copy the exception object to this stack location because collided unwinds
// will cause the original stack location to go dead.
object rethrownException = activeExInfo.ThrownException;
exInfo.Init(rethrownException, ref activeExInfo);
DispatchEx(ref exInfo._frameIter, ref exInfo, activeExInfo._idxCurClause);
FallbackFailFast(RhFailFastReason.InternalError, null);
}
public static void RhRethrow(ref ExInfo activeExInfo, ref ExInfo exInfo)
{
// trigger a GC (only if gcstress) to ensure we can stackwalk at this point
GCStress.TriggerGC();
InternalCalls.RhpValidateExInfoStack();
// We need to copy the Exception object to this stack location because collided unwinds will cause
// the original stack location to go dead.
Exception rethrownException = activeExInfo.ThrownException;
exInfo.Init(rethrownException, ref activeExInfo);
DispatchEx(ref exInfo._frameIter, ref exInfo, activeExInfo._idxCurClause);
BinderIntrinsics.DebugBreak();
}
public static void RhThrowHwEx(uint exceptionCode, ref ExInfo exInfo)
{
// trigger a GC (only if gcstress) to ensure we can stackwalk at this point
GCStress.TriggerGC();
InternalCalls.RhpValidateExInfoStack();
IntPtr faultingCodeAddress = exInfo._pExContext->IP;
ExceptionIDs exceptionId;
switch (exceptionCode)
{
case (uint)HwExceptionCode.STATUS_REDHAWK_NULL_REFERENCE:
exceptionId = ExceptionIDs.NullReference;
break;
case (uint)HwExceptionCode.STATUS_DATATYPE_MISALIGNMENT:
exceptionId = ExceptionIDs.DataMisaligned;
break;
// N.B. -- AVs that have a read/write address lower than 64k are already transformed to
// HwExceptionCode.REDHAWK_NULL_REFERENCE prior to calling this routine.
case (uint)HwExceptionCode.STATUS_ACCESS_VIOLATION:
exceptionId = ExceptionIDs.AccessViolation;
break;
case (uint)HwExceptionCode.STATUS_INTEGER_DIVIDE_BY_ZERO:
exceptionId = ExceptionIDs.DivideByZero;
break;
default:
// We don't wrap SEH exceptions from foreign code like CLR does, so we believe that we
// know the complete set of HW faults generated by managed code and do not need to handle
// this case.
FailFastViaClasslib(RhFailFastReason.InternalError, null, faultingCodeAddress);
exceptionId = ExceptionIDs.NullReference;
break;
}
Exception exceptionToThrow = GetClasslibException(exceptionId, faultingCodeAddress);
exInfo.Init(exceptionToThrow);
DispatchEx(ref exInfo._frameIter, ref exInfo, MaxTryRegionIdx);
BinderIntrinsics.DebugBreak();
}
public static void RhThrowEx(object exceptionObj, ref ExInfo exInfo)
{
// trigger a GC (only if gcstress) to ensure we can stackwalk at this point
GCStress.TriggerGC();
InternalCalls.RhpValidateExInfoStack();
// Transform attempted throws of null to a throw of NullReferenceException.
if (exceptionObj == null)
{
IntPtr faultingCodeAddress = exInfo._pExContext->IP;
exceptionObj = GetClasslibException(ExceptionIDs.NullReference, faultingCodeAddress);
}
exInfo.Init(exceptionObj);
DispatchEx(ref exInfo._frameIter, ref exInfo, MaxTryRegionIdx);
FallbackFailFast(RhFailFastReason.InternalError, null);
}