| //@ 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(); |
| } |
