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implement AFL_GCC_ONLY_FSRV

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mio
2025-05-13 16:15:11 +08:00
parent 9476204da0
commit fca39a6ec3
6 changed files with 20 additions and 11 deletions
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docs/env_variables.md
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@ -111,7 +111,7 @@ fairly broad use of environment variables instead:
- Note: both `AFL_CFISAN_VERBOSE=1` and `AFL_UBSAN_VERBOSE=1` are disabled by default as verbose output can significantly slow down fuzzing performance. Use these options only during debugging or when additional crash diagnostics are required
- `AFL_LLVM_ONLY_FSRV` will inject forkserver but not pc instrumentation. Please note this is different compared to `AFL_LLVM_DISABLE_INSTRUMENTATION`, which will totally disable forkserver implementation. This env is pretty useful in two cases:
- `AFL_LLVM_ONLY_FSRV`/`AFL_GCC_ONLY_FSRV` will inject forkserver but not pc instrumentation. Please note this is different compared to `AFL_LLVM_DISABLE_INSTRUMENTATION`, which will totally disable forkserver implementation. This env is pretty useful in two cases:
- [SAND](./SAND.md). In this case, the binaries built in this way will serve as extra oracles. Check the corresponding documents for details.
- Compatible with LibAFL ForkserverExecutor implementation and thus faster to repeatedly run, compared to simple CommandExecutor.