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Error on broken pipe but do not backtrace or ICE #100040

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Aug 10, 2022
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Error on broken pipe but do not backtrace or ICE #100040

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11 changes: 11 additions & 0 deletions compiler/rustc_driver/src/lib.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -1148,6 +1148,17 @@ static DEFAULT_HOOK: LazyLock<Box<dyn Fn(&panic::PanicInfo<'_>) + Sync + Send +
LazyLock::new(|| {
let hook = panic::take_hook();
panic::set_hook(Box::new(|info| {
// If the error was caused by a broken pipe then this is not a bug.
// Write the error and return immediately. See #98700.
#[cfg(windows)]
if let Some(msg) = info.payload().downcast_ref::<String>() {
if msg.starts_with("failed printing to stdout: ") && msg.ends_with("(os error 232)")
{
early_error_no_abort(ErrorOutputType::default(), &msg);
return;
}
};

// Invoke the default handler, which prints the actual panic message and optionally a backtrace
(*DEFAULT_HOOK)(info);

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