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disable core dumps for panic-uninitialized-zeroed #146335

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Merged
merged 1 commit into from
Sep 11, 2025
Merged

disable core dumps for panic-uninitialized-zeroed #146335

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17 changes: 16 additions & 1 deletion tests/ui/intrinsics/panic-uninitialized-zeroed.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -5,16 +5,20 @@
//@ [strict]compile-flags: -Zstrict-init-checks
//@ needs-subprocess
//@ ignore-backends: gcc
//@ edition:2024

#![allow(deprecated, invalid_value)]
#![feature(never_type)]
#![feature(never_type, rustc_private)]

use std::{
mem::{self, MaybeUninit, ManuallyDrop},
ptr::NonNull,
num,
};

#[cfg(target_os = "linux")]
extern crate libc;

#[allow(dead_code)]
struct Foo {
x: u8,
Expand Down Expand Up @@ -108,6 +112,17 @@ fn test_panic_msg_only_if_strict<T>(op: impl (FnOnce() -> T) + 'static, msg: &st

fn main() {
unsafe {
#[cfg(target_os = "linux")]
{
// This test causes a large amount of crashes. If a system
// has a /proc/sys/kernel/core_pattern that uploads core dumps enabled,
// it will take a long time to complete. Set dumpable to 0 to avoid that.
if libc::prctl(libc::PR_SET_DUMPABLE, 0) < 0 {
let err = std::io::Error::last_os_error();
panic!("failed to disable core dumps {err:?}");
}
}

// Uninhabited types
test_panic_msg(
|| mem::uninitialized::<!>(),
Expand Down
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