bjoernager/rust
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Auto merge of #108714 - estebank:ice_dump, r=oli-obk

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On nightly, dump ICE backtraces to disk

Implement rust-lang/compiler-team#578.

When an ICE is encountered on nightly releases, the new rustc panic handler will also write the contents of the backtrace to disk. If any `delay_span_bug`s are encountered, their backtrace is also added to the file. The platform and rustc version will also be collected.

<img width="1032" alt="Screenshot 2023-03-03 at 2 13 25 PM" src="https://user-images.githubusercontent.com/1606434/222842420-8e039740-4042-4563-b31d-599677171acf.png">

The current behavior will *always* write to disk on nightly builds, regardless of whether the backtrace is printed to the terminal, unless the environment variable `RUSTC_ICE_DISK_DUMP` is set to `0`. This is a compromise and can be changed.
This commit is contained in:
bors 2023-07-20 01:29:17 +00:00
commit a6cdd81eff
33 changed files with 346 additions and 54 deletions
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13
compiler/rustc_session/src/parse.rs
View file

@ -231,6 +231,7 @@ impl ParseSess {
Some(sm.clone()),
None,
fallback_bundle,
None,
);
ParseSess::with_span_handler(handler, sm)
}
@ -261,12 +262,20 @@ impl ParseSess {
pub fn with_silent_emitter(fatal_note: Option<String>) -> Self {
let fallback_bundle = fallback_fluent_bundle(Vec::new(), false);
let sm = Lrc::new(SourceMap::new(FilePathMapping::empty()));
let fatal_handler =
Handler::with_tty_emitter(ColorConfig::Auto, false, None, None, None, fallback_bundle);
let fatal_handler = Handler::with_tty_emitter(
ColorConfig::Auto,
false,
None,
None,
None,
fallback_bundle,
None,
);
let handler = Handler::with_emitter(
false,
None,
Box::new(SilentEmitter { fatal_handler, fatal_note }),
None,
);
ParseSess::with_span_handler(handler, sm)
}

6
compiler/rustc_session/src/session.rs
View file

@ -1392,6 +1392,7 @@ pub fn build_session(
file_loader: Option<Box<dyn FileLoader + Send + Sync + 'static>>,
target_override: Option<Target>,
cfg_version: &'static str,
ice_file: Option<PathBuf>,
) -> Session {
// FIXME: This is not general enough to make the warning lint completely override
// normal diagnostic warnings, since the warning lint can also be denied and changed
@ -1440,6 +1441,7 @@ pub fn build_session(
let span_diagnostic = rustc_errors::Handler::with_emitter_and_flags(
emitter,
sopts.unstable_opts.diagnostic_handler_flags(can_emit_warnings),
ice_file,
);
let self_profiler = if let SwitchWithOptPath::Enabled(ref d) = sopts.unstable_opts.self_profile
@ -1731,7 +1733,7 @@ pub struct EarlyErrorHandler {
impl EarlyErrorHandler {
pub fn new(output: ErrorOutputType) -> Self {
let emitter = mk_emitter(output);
Self { handler: rustc_errors::Handler::with_emitter(true, None, emitter) }
Self { handler: rustc_errors::Handler::with_emitter(true, None, emitter, None) }
}
pub fn abort_if_errors(&self) {
@ -1745,7 +1747,7 @@ impl EarlyErrorHandler {
self.handler.abort_if_errors();
let emitter = mk_emitter(output);
self.handler = Handler::with_emitter(true, None, emitter);
self.handler = Handler::with_emitter(true, None, emitter, None);
}
#[allow(rustc::untranslatable_diagnostic)]