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29 lines
1.1 KiB
Rust
29 lines
1.1 KiB
Rust
// Regression test for issue #105637: `-Zdylib-lto` with LTO duplicated symbols from other dylibs,
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// in this case from libstd.
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//
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// That manifested as both `rustc_driver` and rustc's "main" (`compiler/rustc`) having their own
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// `std::panicking::HOOK` static, and the hook in rustc's main (the default stdlib's) being executed
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// when rustc ICEs, instead of the overridden hook from `rustc_driver` (which also displays the
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// query stack and information on how to open a GH issue for the encountered ICE).
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//
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// In this test, we reproduce this setup by installing a panic hook in both the main and an LTOed
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// dylib: the last hook set should be the one being executed, the dylib's.
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//@ aux-build: thinlto-dylib.rs
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//@ run-fail
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//@ check-run-results
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extern crate thinlto_dylib;
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use std::panic;
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fn main() {
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// We don't want to see this panic hook executed
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std::panic::set_hook(Box::new(|_| {
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eprintln!("main crate panic hook");
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}));
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// Have the LTOed dylib install its own hook and panic, we want to see its hook executed.
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thinlto_dylib::main();
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}
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