add AFL_EARLY_FORKSERVER support

2 files changed, 7 insertions, 0 deletions

diff --git a/docs/Changelog.md b/docs/Changelog.md
index 142b85b3..f4ae0e43 100644
--- a/docs/Changelog.md
+++ b/docs/Changelog.md
@@ -17,6 +17,9 @@ sending a mail to <afl-users+subscribe@googlegroups.com>.
     - reintroduced AFL_PERSISTENT and AFL_DEFER_FORKSRV to allow
       persistent mode and manual forkserver support if these are not
       in the target binary (e.g. are in a shared library)
+    - add AFL_EARY_FORKSERVER to install the forkserver as earliest as
+      possible in the target (for afl-gcc-fast/afl-clang-fast/
+      afl-clang-lto)
   - frida_mode:
     - update to new frida release, handles now c++ throw/catch
 
diff --git a/docs/env_variables.md b/docs/env_variables.md
index 06c08f31..4fa3f051 100644
--- a/docs/env_variables.md
+++ b/docs/env_variables.md
@@ -540,6 +540,10 @@ checks or alter some of the more exotic semantics of the tool:
     - `AFL_PERSISTENT` enforces persistent mode even if none was detected
       in the target binary
 
+  - If you need an early forkserver in your target because of early
+    constructors in your target you can set `AFL_EARLY_FORKSERVER`.
+    Note that is is not a compile time option but a runtime option :-)
+
 ## 5) Settings for afl-qemu-trace
 
 The QEMU wrapper used to instrument binary-only code supports several settings: