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@mschessler mschessler commented Jan 6, 2025

I'm not sure if there was a special reason to remain on AFL instead of AFL++, but the latter should be better in any metric. It therefore would help to have it as a default.

Done:

  • updated to AFL++ v4.30c
  • updated documentation
  • run Github action
  • tested Fuzzer.Run, Fuzzer.OutOfProcess.Run and afl-tmin

What exactly was the reason behind Fuzzer.RunOnce, only for afl-tmin?
It does not work with AFL++ but I have no problem minimizing my crashes with both Fuzzer.Run and Fuzzer.OutOfProcess.Run.
Could it maybe be removed ? Or are there edge-cases where we need it ?

@mschessler
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Default bitmap size changed from

#define MAP_SIZE_POW2 16
#define MAP_SIZE (1 << MAP_SIZE_POW2)

in AFL to

#define DEFAULT_SHMEM_SIZE (8 * 1024 * 1024)

in AFL++

private const int MapSize = 1 << 16; in Fuzzer.cs probably would need adjustment ?

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