internal static unsafe void UnhandledExceptionFailFastViaClasslib(
RhFailFastReason reason, object unhandledException, IntPtr classlibAddress, ref ExInfo exInfo)
{
IntPtr pFailFastFunction =
(IntPtr)InternalCalls.RhpGetClasslibFunctionFromCodeAddress(classlibAddress, ClassLibFunctionId.FailFast);
if (pFailFastFunction == IntPtr.Zero)
{
FailFastViaClasslib(
reason,
unhandledException,
classlibAddress);
}
// 16-byte align the context. This is overkill on x86 and ARM, but simplifies things slightly.
const int contextAlignment = 16;
byte * pbBuffer = stackalloc byte[sizeof(OSCONTEXT) + contextAlignment];
void * pContext = PointerAlign(pbBuffer, contextAlignment);
InternalCalls.RhpCopyContextFromExInfo(pContext, sizeof(OSCONTEXT), exInfo._pExContext);
try
{
((delegate * < RhFailFastReason, object, IntPtr, void *, void >)pFailFastFunction)
(reason, unhandledException, exInfo._pExContext->IP, pContext);
}
catch when(true)
{
// disallow all exceptions leaking out of callbacks
}
// The classlib's function should never return and should not throw. If it does, then we fail our way...
FallbackFailFast(reason, unhandledException);
}
internal unsafe static void UnhandledExceptionFailFastViaClasslib(
RhFailFastReason reason, Exception unhandledException, ref ExInfo exInfo)
{
IntPtr pFailFastFunction = (IntPtr)InternalCalls.RhpGetClasslibFunction(exInfo._pExContext->IP,
ClassLibFunctionId.FailFast);
if (pFailFastFunction == IntPtr.Zero)
{
FailFastViaClasslib(
reason,
unhandledException,
exInfo._pExContext->IP);
}
// 16-byte align the context. This is overkill on x86 and ARM, but simplifies things slightly.
const int contextAlignment = 16;
byte * pbBuffer = stackalloc byte[sizeof(OSCONTEXT) + contextAlignment];
void * pContext = PointerAlign(pbBuffer, contextAlignment);
// We 'normalized' the faulting IP of hardware faults to behave like return addresses. Undo this
// normalization here so that we report the correct thing in the exception context record.
if ((exInfo._kind & ExKind.KindMask) == ExKind.HardwareFault)
{
exInfo._pExContext->IP = (IntPtr)(((byte *)exInfo._pExContext->IP) - c_IPAdjustForHardwareFault);
}
InternalCalls.RhpCopyContextFromExInfo(pContext, sizeof(OSCONTEXT), exInfo._pExContext);
try
{
CalliIntrinsics.CallVoid(pFailFastFunction, reason, unhandledException, (IntPtr)pContext);
}
catch
{
// Unfortunately, this catch turns into "catch (System.Object)", which will not catch
// exceptions thrown from the class library because their objects do not derive from our
// System.Object.
//
// @TODO: Use a filtered catch whose filter always returns 'true'.
}
// The classlib's funciton should never return and should not throw. If it does, then we fail our way...
FailFast(reason, unhandledException);
}
internal unsafe static void UnhandledExceptionFailFastViaClasslib(
RhFailFastReason reason, object unhandledException, IntPtr classlibAddress, ref ExInfo exInfo)
{
IntPtr pFailFastFunction =
(IntPtr)InternalCalls.RhpGetClasslibFunction(classlibAddress, ClassLibFunctionId.FailFast);
if (pFailFastFunction == IntPtr.Zero)
{
FailFastViaClasslib(
reason,
unhandledException,
classlibAddress);
}
// 16-byte align the context. This is overkill on x86 and ARM, but simplifies things slightly.
const int contextAlignment = 16;
byte * pbBuffer = stackalloc byte[sizeof(OSCONTEXT) + contextAlignment];
void * pContext = PointerAlign(pbBuffer, contextAlignment);
// We 'normalized' the faulting IP of hardware faults to behave like return addresses. Undo this
// normalization here so that we report the correct thing in the exception context record.
if ((exInfo._kind & ExKind.KindMask) == ExKind.HardwareFault)
{
exInfo._pExContext->IP = (IntPtr)(((byte *)exInfo._pExContext->IP) - c_IPAdjustForHardwareFault);
}
InternalCalls.RhpCopyContextFromExInfo(pContext, sizeof(OSCONTEXT), exInfo._pExContext);
try
{
CalliIntrinsics.CallVoid(pFailFastFunction, reason, unhandledException, exInfo._pExContext->IP, (IntPtr)pContext);
}
catch
{
// disallow all exceptions leaking out of callbacks
}
// The classlib's funciton should never return and should not throw. If it does, then we fail our way...
FallbackFailFast(reason, unhandledException);
}
