pub fn execute<'a, T, U>(
input: &'a [u8],
run: fn(&[u8], KnownValid, T, &mut Unstructured<'a>) -> Result<U>,
gen_module: fn(&mut T, &mut Unstructured<'a>) -> Result<(Vec<u8>, KnownValid)>,
) -> Result<U>where
T: Arbitrary<'a>,Expand description
Executes a “single module fuzzer” given the raw input from libfuzzer.
This will use the input to generate T, some configuration, which is
then used by gen_module to generate a WebAssembly module. The module is
then passed to run along with the configuration and remaining data that
can be used as fuzz input.
The main purpose of this function is to handle when input is actually a
WebAssembly module “envelope”. If the input is a valid wasm module and
ends with a specific trailing custom section then the module generated by
gen_module is actually discarded. The purpose of this is to handle the
case where the input used to generate a module may change over time but
we’re still interested in the historical coverage of the original wasm
module.