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avoid injected_panic_runtime which is going away #1085

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Nov 29, 2019
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avoid injected_panic_runtime which is going away #1085

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6 changes: 5 additions & 1 deletion src/shims/foreign_items.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -135,7 +135,11 @@ pub trait EvalContextExt<'mir, 'tcx: 'mir>: crate::MiriEvalContextExt<'mir, 'tcx
// Normally, this will be either `libpanic_unwind` or `libpanic_abort`, but it could
// also be a custom user-provided implementation via `#![feature(panic_runtime)]`
"__rust_start_panic" => {
let panic_runtime = tcx.crate_name(tcx.injected_panic_runtime().expect("No panic runtime found!"));
// FIXME we might want to cache this... but it's not really performance-critical.
let panic_runtime = tcx.crates().iter()
.find(|cnum| tcx.is_panic_runtime(**cnum))
.expect("No panic runtime found!");
let panic_runtime = tcx.crate_name(*panic_runtime);
let start_panic_instance = this.resolve_path(&[&*panic_runtime.as_str(), "__rust_start_panic"])?;
return Ok(Some(this.load_mir(start_panic_instance.def, None)?));
}
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