mirror of
https://github.com/facebookexperimental/reverie.git
synced 2024-11-28 09:24:18 +00:00
9a942d055f
Summary: Removes usage of the `associated_type_defaults` unstable feature, but does not actually disable the feature yet. This brings us one step closer to removing all usage of unstable nightly features, which will allow publishing a crate on https://crates.io. Reviewed By: rrnewton Differential Revision: D41388745 fbshipit-source-id: f347a577857a713fe3088a556cbf37ffe92e5553
61 lines
1.5 KiB
Rust
61 lines
1.5 KiB
Rust
/*
|
|
* Copyright (c) Meta Platforms, Inc. and affiliates.
|
|
* All rights reserved.
|
|
*
|
|
* This source code is licensed under the BSD-style license found in the
|
|
* LICENSE file in the root directory of this source tree.
|
|
*/
|
|
|
|
//! Tests that syscall suppression works. That is, when we intercept a syscall,
|
|
//! we should not run the real syscall.
|
|
|
|
use reverie::syscalls::Syscall;
|
|
use reverie::Error;
|
|
use reverie::Guest;
|
|
use reverie::Tool;
|
|
|
|
#[derive(Debug, Default, Clone)]
|
|
struct TestTool;
|
|
|
|
#[reverie::tool]
|
|
impl Tool for TestTool {
|
|
type GlobalState = ();
|
|
type ThreadState = ();
|
|
|
|
async fn handle_syscall_event<T: Guest<Self>>(
|
|
&self,
|
|
guest: &mut T,
|
|
syscall: Syscall,
|
|
) -> Result<i64, Error> {
|
|
match syscall {
|
|
Syscall::Tgkill(_) => {
|
|
// Suppress this syscall. This thread shall not be killed.
|
|
Ok(0)
|
|
}
|
|
_ => guest.tail_inject(syscall).await,
|
|
}
|
|
}
|
|
}
|
|
|
|
#[cfg(all(not(sanitized), test))]
|
|
mod tests {
|
|
use reverie_ptrace::testing::check_fn;
|
|
use syscalls::syscall;
|
|
use syscalls::Sysno;
|
|
|
|
use super::*;
|
|
|
|
#[test]
|
|
fn suppress_tgkill() {
|
|
check_fn::<TestTool, _>(|| {
|
|
let pid = unsafe { syscall!(Sysno::getpid) }.unwrap();
|
|
let tid = unsafe { syscall!(Sysno::gettid) }.unwrap();
|
|
|
|
// This shouldn't work.
|
|
for _ in 0..100 {
|
|
let ret = unsafe { syscall!(Sysno::tgkill, pid, tid, libc::SIGTERM) };
|
|
assert_eq!(ret, Ok(0));
|
|
}
|
|
});
|
|
}
|
|
}
|