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| author | Alon Zakai <azakai@google.com> | 2024-12-16 15:21:10 -0800 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2024-12-16 15:21:10 -0800 |
| commit | aa0550e28002183dd7ea9c2a48ec3533ba70f862 (patch) | |
| tree | 56566cbe1c03ef9477171651cb8514289c16a65e /scripts/clusterfuzz/run.py | |
| parent | 353b759b230dff8fb82aeb157aeb6db360d74a49 (diff) | |
| download | binaryen-aa0550e28002183dd7ea9c2a48ec3533ba70f862.tar.gz binaryen-aa0550e28002183dd7ea9c2a48ec3533ba70f862.tar.bz2 binaryen-aa0550e28002183dd7ea9c2a48ec3533ba70f862.zip | |
Fuzz JSPI (#7148)
* Add a new "sleep" fuzzer import, that does a sleep for some ms.
* Add JSPI support in fuzz_shell.js. This is in the form of commented-out async/await
keywords - commented out so that normal fuzzing is not impacted. When we want
to fuzz JSPI, we uncomment them. We also apply the JSPI operations of marking
imports and exports as suspending/promising.
JSPI fuzzing is added to both fuzz_opt.py and ClusterFuzz's run.py.
Diffstat (limited to 'scripts/clusterfuzz/run.py')
| -rwxr-xr-x | scripts/clusterfuzz/run.py | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/scripts/clusterfuzz/run.py b/scripts/clusterfuzz/run.py index 8ac880e0d..2fedb6510 100755 --- a/scripts/clusterfuzz/run.py +++ b/scripts/clusterfuzz/run.py @@ -200,6 +200,15 @@ def get_js_file_contents(i, output_dir): print(f'Created {bytes} wasm bytes') + # Some of the time, fuzz JSPI (similar to fuzz_opt.py, see details there). + if system_random.random() < 0.25: + # Prepend the flag to enable JSPI. + js = 'var JSPI = 1;\n\n' + js + + # Un-comment the async and await keywords. + js = js.replace('/* async */', 'async') + js = js.replace('/* await */', 'await') + return js |