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Diffstat (limited to 'docs/env_variables.md')
| -rw-r--r-- | docs/env_variables.md | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/docs/env_variables.md b/docs/env_variables.md index ef67abec..4824860c 100644 --- a/docs/env_variables.md +++ b/docs/env_variables.md @@ -64,6 +64,9 @@ fairly broad use of environment variables instead: optimizations, set `AFL_DONT_OPTIMIZE`. However, if `-O...` and/or `-fno-unroll-loops` are set, these are not overridden. + - The optimization level can also be set with `AFL_OPT_LEVEL`, e.g. + `AFL_OPT_LEVEL=z` for `-Oz` + - Setting `AFL_HARDEN` automatically adds code hardening options when invoking the downstream compiler. This currently includes `-D_FORTIFY_SOURCE=2` and `-fstack-protector-all`. The setting is useful for catching non-crashing |