googleprojectzero / googleprojectzero/Jackalope
Shows "No interesting input files", but litecov can generate coverage.
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- Dominant language
- C++
- Stars
- 1.4k
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Description
Hi ifratric,
On macOS, using litecov can generate coverage file, and shows log such as:
Found 1701 new offsets in ...
but with the same instrument_module and input file, Jackalope shows:
[-] PROGRAM ABORT : No interesting input files
Location : SynchronizeAndGetJob(), /Users/dghost/fuzz_proj/Jackalope/fuzzer.cpp:495
Why's that?
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start at fuzzer.cpp:495, where Jackalope reports "No interesting input files," and compare its handling of the same instrument_module and input file with the reported litecov run on macOS. Reproduce the coverage-generation and Jackalope commands from the issue, then determine what causes the differing results and document or fix the behavior.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- cpp
- Domain
- testing-qa
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 35/100