rust/tests/fail/concurrency/unwind_top_of_stack.rs
2022-07-11 11:48:56 +00:00

31 lines
1.1 KiB
Rust

//@ignore-windows: Concurrency on Windows is not supported yet.
//@compile-flags: -Zmiri-disable-abi-check
//! Unwinding past the top frame of a stack is Undefined Behavior.
#![feature(rustc_private, c_unwind)]
extern crate libc;
use std::{mem, ptr};
extern "C-unwind" fn thread_start(_null: *mut libc::c_void) -> *mut libc::c_void {
//~^ ERROR: unwinding past the topmost frame of the stack
panic!()
}
fn main() {
unsafe {
let mut native: libc::pthread_t = mem::zeroed();
let attr: libc::pthread_attr_t = mem::zeroed();
// assert_eq!(libc::pthread_attr_init(&mut attr), 0); FIXME: this function is not yet implemented.
// Cast to avoid inserting abort-on-unwind.
let thread_start: extern "C-unwind" fn(*mut libc::c_void) -> *mut libc::c_void =
thread_start;
let thread_start: extern "C" fn(*mut libc::c_void) -> *mut libc::c_void =
mem::transmute(thread_start);
assert_eq!(libc::pthread_create(&mut native, &attr, thread_start, ptr::null_mut()), 0);
assert_eq!(libc::pthread_join(native, ptr::null_mut()), 0);
}
}