Fuzzer: Improve handling of small inputs and their debugging#7832
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kripken merged 6 commits intoWebAssembly:mainfrom Aug 15, 2025
Merged
Fuzzer: Improve handling of small inputs and their debugging#7832kripken merged 6 commits intoWebAssembly:mainfrom
kripken merged 6 commits intoWebAssembly:mainfrom
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tlively
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Aug 15, 2025
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It would be useful to document the env var somewhere, too.
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Good idea, added to the wiki, https://github.com/WebAssembly/binaryen/wiki/Fuzzing#advanced-topics |
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Add a new env var to control the fuzzer input size,
When set, we will truncate the random bytes we receive as
input in translate-to-fuzz. This makes it simple to bisect on the
input, for example.
Also make the fuzzer notice that the input has run out in more
cases, and stop emitting things. This makes small inputs to
the fuzzer smaller in output.