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Suppress debugger filter notification for UCO entrypoint during EH dispatch #127101

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Merged
jkotas merged 5 commits into from
Apr 18, 2026
Merged

Suppress debugger filter notification for UCO entrypoint during EH dispatch #127101

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ebfc39f
Suppress debugger filter notification for UCO entrypoint during EH di…
tommcdon Apr 18, 2026
ed52a28
Apply suggestion from @jkotas
jkotas Apr 18, 2026
e506d84
Apply suggestion from @jkotas
jkotas Apr 18, 2026
2458690
Update src/coreclr/vm/exinfo.cpp
jkotas Apr 18, 2026
d1ad438
Merge branch 'main' into dev/tommcdon/fix_debugger_unhandled_notifica…
jkotas Apr 18, 2026
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10 changes: 9 additions & 1 deletion src/coreclr/vm/exinfo.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -179,7 +179,15 @@ void ExInfo::MakeCallbacksRelatedToHandler(
if (fIsFilterHandler)
{
m_EHClauseInfo.SetEHClauseType(COR_PRF_CLAUSE_FILTER);
EEToDebuggerExceptionInterfaceWrapper::ExceptionFilter(pMD, (TADDR) dwHandlerStartPC, pEHClause->FilterOffset, (BYTE*)sf.SP);

// Suppress the debugger filter notification for the runtime helper that invokes
// the main program entrypoint (Environment.CallEntryPoint). This method has
// a filter clause that may return false, but the debugger intercepts at the notification
// before the filter evaluates, preventing the exception from propagating as unhandled.
if (pMD != g_pEnvironmentCallEntryPointMethodDesc)
{
EEToDebuggerExceptionInterfaceWrapper::ExceptionFilter(pMD, (TADDR) dwHandlerStartPC, pEHClause->FilterOffset, (BYTE*)sf.SP);
}

EEToProfilerExceptionInterfaceWrapper::ExceptionSearchFilterEnter(pMD);
ETW::ExceptionLog::ExceptionFilterBegin(pMD, (PVOID)dwHandlerStartPC);
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