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Diffstat (limited to 'docs/env_variables.txt')
| -rw-r--r-- | docs/env_variables.txt | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/docs/env_variables.txt b/docs/env_variables.txt index f5db3b4f..725dc82e 100644 --- a/docs/env_variables.txt +++ b/docs/env_variables.txt @@ -106,6 +106,11 @@ Then there are a few specific features that are only available in llvm_mode: See llvm_mode/README.whitelist for more information. + OTHER + ===== + - Setting AFL_NZERO_COUNTS=1 during compilation will use counters + that skip zero on overflow. + Note that AFL_INST_RATIO will behave a bit differently than for afl-gcc, because functions are *not* instrumented unconditionally - so low values will have a more striking effect. For this tool, 0 is not a valid choice. |