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onefuzz/docs/custom-analysis.md
bmc-msft 198d765cb4
Add generic_analysis example that performs coverage analysis (#1072) 
This adds an example script and tool that enables LLVM source-based coverage using the `generic_analysis` task.

This provides:
1. sample python script that launches the template and then the analysis task
1. sample `analysis_exe` wrapper script that launches the LLVM coverage tools
1. sample libfuzzer target for the example
1. walk through submitting the jobs and inspecting the results
2021-07-21 17:12:24 +00:00

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Custom Analysis Tasks

OneFuzz supports the ability to create user-defined analysis tasks, enabling custom triage of crashes.

Example use case

Users can automatically record the output of !analyze for crash using a generic_generator task with analyzer_exe of cdb, and the analyzer_options of

[
    "-c", "!analyze;q", "-logo", "{output_dir}\\{input_file_name_no_ext}.report",
     "{target_exe}", "{target_options}"
]

For a crash named mycrash.txt, this will create mycrash.report in the analysis container.

This can be seen in the radamsa template for any Windows targets.

See also: