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Use the AFL++ shared memory ID environment variable to create a deterministic datadir path. This prevents accumulation of stale directories after a fuzz iteration crashes or times out. During long fuzz campaigns, this accumulation has occasionally resulted in running out of disk space.
Test library
This contains files for the test library, which is used by the test binaries (unit tests, benchmarks, fuzzers, gui tests).
Generally, the files in this folder should be well-separated modules. New code should be added to existing modules or (when in doubt) a new module should be created.
The utilities in here are compiled into a library, which does not hold any state. However, the main file setup_common
defines the common test setup for all test binaries. The test binaries will handle the global state when they
instantiate the BasicTestingSetup (or one of its derived classes).