added gcc_plugin

docs/ChangeLog

@@ -17,6 +17,10 @@ sending a mail to <afl-users+subscribe@googlegroups.com>.
 Version ++2.52d (tbd):
 -----------------------------
 
+  - if llvm_mode was compiled, afl-clang/afl-clang++ will point to these
+    instead of afl-gcc
+  - added gcc_plugin which is like llvm_mode but for gcc. This version
+    supports gcc version 5 to 8. See gcc_plugin/README (https://github.com/T12z/afl)
   - added instrim, a much faster llvm_mode instrumentation at the cost of
     path discovery. See llvm_mode/README.instrim (https://github.com/csienslab/instrim)
   - added MOpt (github.com/puppet-meteor/MOpt-AFL) mode, see docs/README.MOpt

docs/PATCHES

@@ -17,6 +17,7 @@ afl-qemu-optimize-entrypoint.diff	by mh(at)mh-sec(dot)de
 afl-qemu-speed.diff			by abiondo on github
 afl-qemu-optimize-map.diff		by mh(at)mh-sec(dot)de
 
++ gcc_plugin (https://github.com/T12z/afl)
 + instrim (https://github.com/csienslab/instrim) was integrated
 + MOpt (github.com/puppet-meteor/MOpt-AFL) was imported
 + AFLfast additions (github.com/mboehme/aflfast) were incorporated.

docs/README

@@ -25,6 +25,9 @@ american fuzzy lop plus plus
   Also newly integrated is instrim, a very effective CFG llvm_mode
   instrumentation implementation from https://github.com/csienslab/instrim
 
+  Similar to llvm_mode a gcc_plugin that supports versions 5 to 8 is
+  now available (from https://github.com/T12z/afl)
+
   A more thorough list is available in the PATCHES file.
 
   So all in all this is the best-of AFL that is currently out there :-)