Files
wasmtime/crates/fuzzing
Alex Crichton 550c774c1d fuzz: Allow incompatible import types in instantiation (#2778)
Yesterday fuzzing was switched to using a `Linker` to improve coverage
when using module linking since we can fake instance imports with
definitions of each individual item. Using a `Linker`, however, means
that we can't necessarily instantiate all modules, such as

    (module
      (import "" "" (memory (;0;) 0 1))
      (import "" "" (memory (;1;) 2)))

As a result this just allows these sorts of "incompatible import type"
errors when fuzzing to not trigger crashes.
2021-03-26 14:38:34 -05:00
..
2021-03-25 18:44:31 -05:00
2019-11-21 14:51:07 -08:00

Fuzzing Infrastructure for Wasmtime

This crate provides test case generators and oracles for use with fuzzing.

These generators and oracles are generally independent of the fuzzing engine that might be using them and driving the whole fuzzing process (e.g. libFuzzer or AFL). As such, this crate does not contain any actual fuzz targets itself. Those are generally just a couple lines of glue code that plug raw input from (for example) libFuzzer into a generator, and then run one or more oracles on the generated test case.

If you're looking for the actual fuzz target definitions we currently have, they live in wasmtime/fuzz/fuzz_targets/* and are driven by cargo fuzz and libFuzzer.