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Add rust_fail. #11219

This commit is contained in:
Brian Anderson 2013-12-30 18:43:03 -08:00
parent 1502b1197b
commit 705f472c55
1 changed files with 21 additions and 14 deletions
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35
src/libstd/rt/unwind.rs
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@ -180,22 +180,29 @@ impl Unwinder {
self.unwinding = true;
self.cause = Some(cause);
unsafe {
let exception = ~uw::_Unwind_Exception {
exception_class: rust_exception_class(),
exception_cleanup: exception_cleanup,
private_1: 0,
private_2: 0
};
let error = uw::_Unwind_RaiseException(cast::transmute(exception));
rtabort!("Could not unwind stack, error = {}", error as int)
}
rust_fail();
extern "C" fn exception_cleanup(_unwind_code: uw::_Unwind_Reason_Code,
exception: *uw::_Unwind_Exception) {
rtdebug!("exception_cleanup()");
// An uninlined, unmangled function upon which to slap yer breakpoints
#[inline(never)]
#[no_mangle]
fn rust_fail() -> ! {
unsafe {
let _: ~uw::_Unwind_Exception = cast::transmute(exception);
let exception = ~uw::_Unwind_Exception {
exception_class: rust_exception_class(),
exception_cleanup: exception_cleanup,
private_1: 0,
private_2: 0
};
let error = uw::_Unwind_RaiseException(cast::transmute(exception));
rtabort!("Could not unwind stack, error = {}", error as int)
}
extern "C" fn exception_cleanup(_unwind_code: uw::_Unwind_Reason_Code,
exception: *uw::_Unwind_Exception) {
rtdebug!("exception_cleanup()");
unsafe {
let _: ~uw::_Unwind_Exception = cast::transmute(exception);
}
}
}
}