Move libfuzzer sanitizer options to README

This is something you might want to change depending on the version to
use, there is no point in us fixing this to something.

Reviewed-by: Rich Salz <rsalz@openssl.org>
GH: #2023

diff --git a/Configure b/Configure
index 9d564ba1627a274f4be402956105ef81c74081ca..45b41754836a826757d623e5c5371cbdf2571f9c 100755 (executable)
--- a/Configure
+++ b/Configure
@@ -1110,10 +1110,6 @@ if ($disabled{"dynamic-engine"}) {
         $config{dynamic_engines} = 1;
 }
 
         $config{dynamic_engines} = 1;
 }
 

-unless ($disabled{"fuzz-libfuzzer"}) {
-    $config{cflags} .= "-fsanitize-coverage=edge,indirect-calls,8bit-counters ";
-}
-

 unless ($disabled{asan}) {
     $config{cflags} .= "-fsanitize=address ";
 }
 unless ($disabled{asan}) {
     $config{cflags} .= "-fsanitize=address ";
 }

diff --git a/fuzz/README.md b/fuzz/README.md
index d0c30f4461c8190b313e3f88565ed685d26027c9..69c388121b8c867a821afdb4c811af16d4498e98 100644 (file)
--- a/fuzz/README.md
+++ b/fuzz/README.md
@@ -39,7 +39,8 @@ Configure for fuzzing:
             --with-fuzzer-include=../../svn-work/Fuzzer \
             --with-fuzzer-lib=../../svn-work/Fuzzer/libFuzzer \
             -DPEDANTIC enable-asan enable-ubsan no-shared \
             --with-fuzzer-include=../../svn-work/Fuzzer \
             --with-fuzzer-lib=../../svn-work/Fuzzer/libFuzzer \
             -DPEDANTIC enable-asan enable-ubsan no-shared \

-            -DFUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
+            -DFUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION \
+           -fsanitize-coverage=edge,indirect-calls,8bit-counters

     $ sudo apt-get install make
     $ LDCMD=clang++ make -j
     $ fuzz/helper.py $FUZZER
     $ sudo apt-get install make
     $ LDCMD=clang++ make -j
     $ fuzz/helper.py $FUZZER