rust/src/test/run-pass/out-of-stack.rs
Ed Schouten 3f880912e9 Add 'ignore-cloudabi' to tests that don't and won't build on CloudABI.
It looks like many of these tests are already disabled on emscripten,
which also doesn't seem to support environment variables and subprocess
spawning. Just add a similar tag for CloudABI. While there, sort some of
the lists of operating systems alphabetically.
2018-01-02 14:11:41 +01:00

97 lines
2.7 KiB
Rust

// Copyright 2012-2014 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
// ignore-android: FIXME (#20004)
// ignore-musl
// ignore-cloudabi no processes
// ignore-emscripten no processes
#![feature(asm)]
#![feature(libc)]
#[cfg(unix)]
extern crate libc;
use std::env;
use std::process::Command;
use std::thread;
// lifted from the test module
// Inlining to avoid llvm turning the recursive functions into tail calls,
// which doesn't consume stack.
#[inline(always)]
pub fn black_box<T>(dummy: T) { unsafe { asm!("" : : "r"(&dummy)) } }
fn silent_recurse() {
let buf = [0u8; 1000];
black_box(buf);
silent_recurse();
}
fn loud_recurse() {
println!("hello!");
loud_recurse();
black_box(()); // don't optimize this into a tail call. please.
}
#[cfg(unix)]
fn check_status(status: std::process::ExitStatus)
{
use libc;
use std::os::unix::process::ExitStatusExt;
assert!(!status.success());
assert_eq!(status.signal(), Some(libc::SIGABRT));
}
#[cfg(not(unix))]
fn check_status(status: std::process::ExitStatus)
{
assert!(!status.success());
}
fn main() {
let args: Vec<String> = env::args().collect();
if args.len() > 1 && args[1] == "silent" {
silent_recurse();
} else if args.len() > 1 && args[1] == "loud" {
loud_recurse();
} else if args.len() > 1 && args[1] == "silent-thread" {
thread::spawn(silent_recurse).join();
} else if args.len() > 1 && args[1] == "loud-thread" {
thread::spawn(loud_recurse).join();
} else {
let mut modes = vec![
"silent-thread",
"loud-thread",
];
// On linux it looks like the main thread can sometimes grow its stack
// basically without bounds, so we only test the child thread cases
// there.
if !cfg!(target_os = "linux") {
modes.push("silent");
modes.push("loud");
}
for mode in modes {
println!("testing: {}", mode);
let silent = Command::new(&args[0]).arg(mode).output().unwrap();
check_status(silent.status);
let error = String::from_utf8_lossy(&silent.stderr);
assert!(error.contains("has overflowed its stack"),
"missing overflow message: {}", error);
}
}
}