wasmtime_fuzzing/
lib.rs

1//! Fuzzing infrastructure for Wasmtime.
2
3#![deny(missing_docs)]
4
5pub use wasm_mutate;
6pub use wasm_smith;
7pub mod generators;
8pub mod mutators;
9pub mod oracles;
10pub mod single_module_fuzzer;
11
12/// One time start up initialization for fuzzing:
13///
14/// * Enables `env_logger`.
15///
16/// * Restricts `rayon` to a single thread in its thread pool, for more
17///   deterministic executions.
18///
19/// If a fuzz target is taking raw input bytes from the fuzzer, it is fine to
20/// call this function in the fuzz target's oracle or in the fuzz target
21/// itself. However, if the fuzz target takes an `Arbitrary` type, and the
22/// `Arbitrary` implementation is not derived and does interesting things, then
23/// the `Arbitrary` implementation should call this function, since it runs
24/// before the fuzz target itself.
25pub fn init_fuzzing() {
26    static INIT: std::sync::Once = std::sync::Once::new();
27
28    INIT.call_once(|| {
29        let _ = env_logger::try_init();
30    });
31}
wasmtime_fuzzing/lib.rs

wasmtime_fuzzing/
lib.rs
