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authorvanhauser-thc <vh@thc.org>2022-02-08 20:15:48 +0100
committervanhauser-thc <vh@thc.org>2022-02-08 20:15:48 +0100
commitcf853fb2494912a1c4b531ffcf302843266639b7 (patch)
tree136fb71b40254cf04f8605ee4bf4638de6974fbe /docs/env_variables.md
parentfa628865c1d3b8d0cc4bc04efc516fc7b48b6a69 (diff)
downloadafl++-cf853fb2494912a1c4b531ffcf302843266639b7.tar.gz
reintroduce AFL_PERSISTENT and AFL_DEFER_FORKSRV
Diffstat (limited to 'docs/env_variables.md')
-rw-r--r--docs/env_variables.md10
1 files changed, 7 insertions, 3 deletions
diff --git a/docs/env_variables.md b/docs/env_variables.md
index f7ad4ff9..06c08f31 100644
--- a/docs/env_variables.md
+++ b/docs/env_variables.md
@@ -532,9 +532,13 @@ checks or alter some of the more exotic semantics of the tool:
   - Setting `AFL_TRY_AFFINITY` tries to attempt binding to a specific CPU core
     on Linux systems, but will not terminate if that fails.
 
-  - Outdated environment variables that are not supported anymore:
-    - `AFL_DEFER_FORKSRV`
-    - `AFL_PERSISTENT`
+  - The following environment variables are only needed if you implemented
+    your own forkserver or persistent mode, or if __AFL_LOOP or __AFL_INIT
+    are in a shared library and not the main binary:
+    - `AFL_DEFER_FORKSRV` enforces a deferred forkserver even if none was
+      detected in the target binary
+    - `AFL_PERSISTENT` enforces persistent mode even if none was detected
+      in the target binary
 
 ## 5) Settings for afl-qemu-trace