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