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Diffstat (limited to '')
-rw-r--r-- | src/test/ui/sepcomp/sepcomp-unwind.rs | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/src/test/ui/sepcomp/sepcomp-unwind.rs b/src/test/ui/sepcomp/sepcomp-unwind.rs new file mode 100644 index 000000000..a59e25a27 --- /dev/null +++ b/src/test/ui/sepcomp/sepcomp-unwind.rs @@ -0,0 +1,35 @@ +// run-pass +// needs-unwind +#![allow(dead_code)] +// compile-flags: -C codegen-units=3 +// ignore-emscripten no threads support + +// Test unwinding through multiple compilation units. + +// According to acrichto, in the distant past `ld -r` (which is used during +// linking when codegen-units > 1) was known to produce object files with +// damaged unwinding tables. This may be related to GNU binutils bug #6893 +// ("Partial linking results in corrupt .eh_frame_hdr"), but I'm not certain. +// In any case, this test should let us know if enabling parallel codegen ever +// breaks unwinding. + + +use std::thread; + +fn pad() -> usize { 0 } + +mod a { + pub fn f() { + panic!(); + } +} + +mod b { + pub fn g() { + ::a::f(); + } +} + +fn main() { + thread::spawn(move|| { ::b::g() }).join().unwrap_err(); +} |