| commit | 1b1c18409d695bed893018b9643867f59ac5ac33 | [log] [tgz] |
|---|---|---|
| author | Jeff Vander Stoep <[email protected]> | Fri Dec 16 23:22:19 2022 +0000 |
| committer | Automerger Merge Worker <[email protected]> | Fri Dec 16 23:22:19 2022 +0000 |
| tree | 9438ec226e7c2fef5bcb6b44fb76f4441be22dac | |
| parent | 4e031b3a08a06e36fa74d66192dac5250ad69131 [diff] | |
| parent | 79820b38ced706a498e2a55dc802e9b4e78e6975 [diff] |
Upgrade libfuzzer-sys to 0.4.5 am: d7d8953737 am: 38de92303c am: 79820b38ce Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/libfuzzer-sys/+/2344905 Change-Id: Iaa25475ed81de51bcb0b592c2bb55a967e591ff0 Signed-off-by: Automerger Merge Worker <[email protected]>
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 = "0.4.0" 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' \ -C llvm-args='-sanitizer-coverage-inline-8bit-counters' \ -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.