commit | fe7892dfa42a36983cd6583319e0e5273df1af78 | [log] [tgz] |
---|---|---|
author | android-build-team Robot <android-build-team-robot@google.com> | Fri Jan 29 04:08:33 2021 +0000 |
committer | android-build-team Robot <android-build-team-robot@google.com> | Fri Jan 29 04:08:33 2021 +0000 |
tree | 20ca241ea27f48740dcbca22ba00bc936bfe82f1 | |
parent | 0e1e755ed95b5465d8a78f52836ebfe072dd1f41 [diff] | |
parent | e9b4f23f4c5e8fd5905ebf7954ac3b6142911841 [diff] |
Snap for 7110312 from e9b4f23f4c5e8fd5905ebf7954ac3b6142911841 to tm-release Change-Id: I7e1b6c11335941da87b4c864d2157caddfdeec69
libfuzzer-sys
CrateBarebones wrapper around LLVM's libFuzzer runtime library.
The CPP parts are extracted from compiler-rt git repository with git filter-branch
.
libFuzzer relies on LLVM sanitizer support. The Rust compiler has built-in support for LLVM sanitizer support, for now, it's limited to Linux. As a result, libfuzzer-sys
only works on Linux.
cargo fuzz
!The recommended way to use this crate with cargo fuzz
!.
This crate can also be used manually as following:
First create a new cargo project:
$ cargo new --bin fuzzed $ cd fuzzed
Then add a dependency on the fuzzer-sys
crate and your own crate:
[dependencies] libfuzzer-sys = "0.3.0" your_crate = { path = "../path/to/your/crate" }
Change the fuzzed/src/main.rs
to fuzz your code:
#![no_main] use libfuzzer_sys::fuzz_target; fuzz_target!(|data: &[u8]| { // code to fuzz goes here });
Build by running the following command:
$ cargo rustc -- \ -C passes='sancov' \ -C llvm-args='-sanitizer-coverage-level=3' \ -Z sanitizer=address
And finally, run the fuzzer:
$ ./target/debug/fuzzed
./update-libfuzzer.sh <github.com/llvm-mirror/llvm-project SHA1>
All files in libfuzzer
directory are licensed NCSA.
Everything else is dual-licensed Apache 2.0 and MIT.