adjust documentation for new minimum llvm version 3.4

4 files changed, 6 insertions, 5 deletions

diff --git a/README.md b/README.md
index 253275e2..5af2b0fc 100644
--- a/README.md
+++ b/README.md
@@ -267,7 +267,7 @@ superior to blind fuzzing or coverage-only tools.
 PLEASE NOTE: llvm_mode compilation with afl-clang-fast/afl-clang-fast++
 instead of afl-gcc/afl-g++ is much faster and has many cool features.
 See llvm_mode/ - however few code does not compile with llvm.
-We support llvm versions 3.8.0 to 11.
+We support llvm versions 3.4 to 11.
 
 When source code is available, instrumentation can be injected by a companion
 tool that works as a drop-in replacement for gcc or clang in any standard build
@@ -290,7 +290,7 @@ For C++ programs, you'd would also want to set `CXX=/path/to/afl/afl-g++`.
 The clang wrappers (afl-clang and afl-clang++) can be used in the same way;
 clang users may also opt to leverage a higher-performance instrumentation mode,
 as described in [llvm_mode/README.md](llvm_mode/README.md).
-Clang/LLVM has a much better performance and works with LLVM version 3.8.0 to 11.
+Clang/LLVM has a much better performance and works with LLVM version 3.4 to 11.
 
 Using the LAF Intel performance enhancements are also recommended, see 
 [llvm_mode/README.laf-intel.md](llvm_mode/README.laf-intel.md)
diff --git a/llvm_mode/GNUmakefile b/llvm_mode/GNUmakefile
index 01c83787..0a99202d 100644
--- a/llvm_mode/GNUmakefile
+++ b/llvm_mode/GNUmakefile
@@ -32,7 +32,7 @@ ifeq "$(shell uname)" "OpenBSD"
   LLVM_CONFIG ?= $(BIN_PATH)/llvm-config
   HAS_OPT = $(shell test -x $(BIN_PATH)/opt && echo 0 || echo 1)
   ifeq "$(HAS_OPT)" "1"
-    $(error llvm_mode needs a complete llvm installation (versions 3.8.0 up to 11) -> e.g. "pkg_add llvm-7.0.1p9")
+    $(error llvm_mode needs a complete llvm installation (versions 3.4 up to 11) -> e.g. "pkg_add llvm-7.0.1p9")
   endif
 else
   LLVM_CONFIG ?= llvm-config
@@ -53,7 +53,7 @@ ifeq "$(LLVMVER)" ""
 endif
 
 ifeq "$(LLVM_UNSUPPORTED)" "1"
-  $(warning llvm_mode only supports llvm versions 3.8.0 up to 11)
+  $(warning llvm_mode only supports llvm versions 3.4 up to 11)
 endif
 
 ifeq "$(LLVM_MAJOR)" "9"
diff --git a/llvm_mode/README.instrim.md b/llvm_mode/README.instrim.md
index b905af11..53a518a9 100644
--- a/llvm_mode/README.instrim.md
+++ b/llvm_mode/README.instrim.md
@@ -6,6 +6,7 @@ InsTrim: Lightweight Instrumentation for Coverage-guided Fuzzing
 
 InsTrim uses CFG and markers to instrument just what is necessary in the
 binary in llvm_mode. It is about 10-15% faster without disadvantages.
+It requires at least llvm version 3.8.0.
 
 ## Usage
 
diff --git a/llvm_mode/README.md b/llvm_mode/README.md
index 0bff1ff1..96b2762c 100644
--- a/llvm_mode/README.md
+++ b/llvm_mode/README.md
@@ -6,7 +6,7 @@
 
 ## 1) Introduction
 
-! llvm_mode works with llvm versions 3.8.0 up to 11 !
+! llvm_mode works with llvm versions 3.4 up to 11 !
 
 The code in this directory allows you to instrument programs for AFL using
 true compiler-level instrumentation, instead of the more crude