mirror of https://github.com/rust-lang/rust
36 lines
813 B
Rust
36 lines
813 B
Rust
//@ run-pass
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//@ needs-unwind
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#![allow(dead_code)]
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//@ compile-flags: -C codegen-units=3
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//@ ignore-emscripten no threads support
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// Test unwinding through multiple compilation units.
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// According to acrichto, in the distant past `ld -r` (which is used during
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// linking when codegen-units > 1) was known to produce object files with
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// damaged unwinding tables. This may be related to GNU binutils bug #6893
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// ("Partial linking results in corrupt .eh_frame_hdr"), but I'm not certain.
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// In any case, this test should let us know if enabling parallel codegen ever
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// breaks unwinding.
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use std::thread;
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fn pad() -> usize { 0 }
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mod a {
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pub fn f() {
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panic!();
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}
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}
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mod b {
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pub fn g() {
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::a::f();
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}
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}
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fn main() {
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thread::spawn(move|| { ::b::g() }).join().unwrap_err();
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}
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