tests/ui/lto/auxiliary/thinlto-dylib.rs

   1 // Auxiliary crate for test issue-105637: the LTOed dylib which had duplicate symbols from libstd,
   2 // breaking the panic hook feature.
   3 //
   4 // This simulates the `rustc_driver` crate, and the main crate simulates rustc's main binary hooking
   5 // into this driver.
   6
   7 // compile-flags: -Zdylib-lto -C lto=thin
   8
   9 use std::panic;
  10
  11 pub fn main() {
  12     // Install the hook we want to see executed
  13     panic::set_hook(Box::new(|_| {
  14         eprintln!("LTOed auxiliary crate panic hook");
  15     }));
  16
  17     // Trigger the panic hook with an ICE
  18     run_compiler();
  19 }
  20
  21 fn run_compiler() {
  22     panic!("ICEing");
  23 }