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authorAbhishek Arya <inferno@chromium.org>2021-01-31 09:11:42 -0800
committerGitHub <noreply@github.com>2021-01-31 09:11:42 -0800
commit42018eeb1cf2e1f3cffa15690988e183e73e6ecd (patch)
tree1ae4d9115ed4b93519548fe3c7c60a80f8c9c13b /infra/base-images/base-builder
parentc38c48cb3dd4d1b5b4ef416f74e03adc92144756 (diff)
downloadoss-fuzz-42018eeb1cf2e1f3cffa15690988e183e73e6ecd.tar.gz
Switch to using afl-clang-fast for afl++. (#5074)
Diffstat (limited to 'infra/base-images/base-builder')
-rw-r--r--infra/base-images/base-builder/Dockerfile2
-rwxr-xr-xinfra/base-images/base-builder/compile_afl24
2 files changed, 7 insertions, 19 deletions
diff --git a/infra/base-images/base-builder/Dockerfile b/infra/base-images/base-builder/Dockerfile
index 2874a0e67..073db5827 100644
--- a/infra/base-images/base-builder/Dockerfile
+++ b/infra/base-images/base-builder/Dockerfile
@@ -147,8 +147,6 @@ RUN mkdir $PRECOMPILED_DIR
WORKDIR $SRC
-RUN git clone -b stable https://github.com/google/AFL.git afl
-
RUN git clone -b stable https://github.com/AFLplusplus/AFLplusplus.git aflplusplus && \
cd aflplusplus && \
git checkout 068bef5eab942df0a133c92522f2ab81b28ac636
diff --git a/infra/base-images/base-builder/compile_afl b/infra/base-images/base-builder/compile_afl
index feba5a0fc..fa3ee01d4 100755
--- a/infra/base-images/base-builder/compile_afl
+++ b/infra/base-images/base-builder/compile_afl
@@ -15,20 +15,6 @@
#
################################################################################
-echo "Compiling afl driver to $LIB_FUZZING_ENGINE"
-
-# afl needs its special coverage flags
-export COVERAGE_FLAGS="-fsanitize-coverage=trace-pc-guard"
-
-mkdir -p $WORK/afl
-pushd $WORK/afl > /dev/null
-# Add -Wno-pointer-sign to silence warning (AFL is compiled this way).
-$CC $CFLAGS -Wno-pointer-sign -c $SRC/afl/llvm_mode/afl-llvm-rt.o.c
-$CXX $CXXFLAGS -std=c++11 -O2 -c $SRC/libfuzzer/afl/*.cpp -I$SRC/libfuzzer
-ar r $LIB_FUZZING_ENGINE $WORK/afl/*.o
-popd > /dev/null
-rm -rf $WORK/afl
-
echo "Compiling afl++"
# Build and copy afl++ tools necessary for fuzzing.
@@ -40,17 +26,21 @@ INITIAL_CXXFLAGS=$CXXFLAGS
INITIAL_CFLAGS=$CFLAGS
unset CXXFLAGS
unset CFLAGS
-
make clean
AFL_NO_X86=1 PYTHON_INCLUDE=/ make
-make -C utils/aflpp_driver
-
CFLAGS=$INITIAL_CFLAGS
CXXFLAGS=$INITIAL_CXXFLAGS
+# Build afl++ driver with existing CFLAGS, CXXFLAGS.
+make -C utils/aflpp_driver
+cp libAFLDriver.a $LIB_FUZZING_ENGINE
+
# Some important projects include libraries, copy those even when they don't
# start with "afl-". Use "sort -u" to avoid a warning about duplicates.
ls afl-* *.a *.o *.so | sort -u | xargs cp -t $OUT
popd > /dev/null
+export CC="$SRC/aflplusplus/afl-clang-fast"
+export CXX="$SRC/aflplusplus/afl-clang-fast++"
+
echo " done."