crosvm/fuzz/zimage_fuzzer.rs
David Tolnay aecf9a4dee edition: Remove extern crate lines
In Rust 2018 edition, `extern crate` is no longer required for importing
from other crates. Instead of writing:

    extern crate dep;
    use dep::Thing;

we write:

    use dep::Thing;

In this approach, macros are imported individually from the declaring
crate rather than through #[macro_use]. Before:

    #[macro_use]
    extern crate sys_util;

After:

    use sys_util::{debug, error};

The only place that `extern crate` continues to be required is in
importing the compiler's proc_macro API into a procedural macro crate.
This will hopefully be fixed in a future Rust release.

    extern crate proc_macro;

TEST=cargo check
TEST=cargo check --all-features
TEST=cargo check --target aarch64-unknown-linux-gnu
TEST=local kokoro

Change-Id: I0b43768c0d81f2a250b1959fb97ba35cbac56293
Reviewed-on: https://chromium-review.googlesource.com/1565302
Commit-Ready: David Tolnay <dtolnay@chromium.org>
Commit-Ready: ChromeOS CL Exonerator Bot <chromiumos-cl-exonerator@appspot.gserviceaccount.com>
Tested-by: David Tolnay <dtolnay@chromium.org>
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: David Tolnay <dtolnay@chromium.org>
2019-04-15 02:06:08 -07:00

31 lines
1,007 B
Rust

// Copyright 2019 The Chromium OS Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#![no_main]
use sys_util::{GuestAddress, GuestMemory};
use std::io::Cursor;
use std::panic;
use std::process;
use std::slice;
#[export_name = "LLVMFuzzerTestOneInput"]
pub fn test_one_input(data: *const u8, size: usize) -> i32 {
// We cannot unwind past ffi boundaries.
panic::catch_unwind(|| {
// Safe because the libfuzzer runtime will guarantee that `data` is at least
// `size` bytes long and that it will be valid for the lifetime of this
// function.
let bytes = unsafe { slice::from_raw_parts(data, size) };
let mut kimage = Cursor::new(bytes);
let mem = GuestMemory::new(&[(GuestAddress(0), bytes.len() as u64 + 0x1000)]).unwrap();
let _ = kernel_loader::load_kernel(&mem, GuestAddress(0), &mut kimage);
})
.err()
.map(|_| process::abort());
0
}