Add Mutator Plugins as a Strategy #286
Conversation
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/gcbrun |
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Will we add usage documentation for this after we've verified the feature works well? Really excited to see this idea land and be usable. |
Sure. I plan on first seeing if this feature is useful. If it is and we decide to make the feature permanent, I'll add documentation and make it "supported" for other users. |
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/gcbrun |
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/gcbrun |
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/gcbrun |
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/gcbrun |
| @@ -61,6 +61,11 @@ class FuzzerTest(builtin_test.BaseEngineFuzzerTest): | |||
| def test_run(self): | |||
| """Test running libFuzzer fuzzer.""" | |||
| libfuzzer = fuzzer.LibFuzzer() | |||
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| # Don't test mutator_plugins here. | |||
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I test it elsewhere so it isn't needed here. But when the test ran before it would spend a really long time and then error out when talking to GCS. Maybe we should get this working?
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/gcbrun |
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Sorry for the spam folks, my local tests weren't quite working so I was using the upload/gcbrun workflow a bit too aggressively. |
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for OSS-Fuzz, you'll need to add a line here: https://github.com/google/clusterfuzz/blob/master/src/appengine/handlers/cron/oss_fuzz_setup.py#L745 to give workers permissions to access the relevant buckets. |
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cc @kcc @afd @paulthomson |
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/gcbrun |
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This CL is getting huge, best to split into 2-3 parts for faster review and easier understanding.
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/gcbrun |
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/gcbrun |
| """Creates directories needed to use mutator plugins.""" | ||
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| def recreate_directory(directory_path): | ||
| shell.create_directory_if_needed( |
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This looks very hacky, to do create_directory_if_needed first and then remove_directory. Why do we need to remove and re-download plugin everytime ? Is this for every launcher instance ? We need to make sure we dont even unpack if it was unpacked once.
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This looks very hacky, to do create_directory_if_needed first and then remove_directory. Why do we need to remove and re-download plugin everytime ?
What if the plugin gets updated?
Is this for every launcher instance ?
Yes.
We need to make sure we dont even unpack if it was unpacked once.
I intentionally do this. I agree it would be less wasteful to unpack once for every 5 runs of launcher.py. I believe the code did this initially, but it was suggested that I change this so that mutator plugins would more easily work on OSS-Fuzz.
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/gcbrun |
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