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#!/bin/bash -eu
# Copyright 2019 Google Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
################################################################################
export PKG_CONFIG_PATH=/work/lib/pkgconfig
export LDFLAGS="$CXXFLAGS"
# libz
pushd $SRC/zlib
./configure --static --prefix=$WORK
make -j$(nproc) all
make install
popd
# libexif
pushd $SRC/libexif
autoreconf -fi
./configure \
--enable-shared=no \
--disable-docs \
--disable-dependency-tracking \
--prefix=$WORK
make -j$(nproc)
make install
popd
# aom
pushd $SRC/aom
mkdir -p build/linux
cd build/linux
cmake -G "Unix Makefiles" \
-DCMAKE_C_COMPILER=$CC -DCMAKE_CXX_COMPILER=$CXX \
-DCMAKE_C_FLAGS="$CFLAGS" -DCMAKE_CXX_FLAGS="$CXXFLAGS" \
-DCMAKE_INSTALL_PREFIX=$WORK -DCMAKE_INSTALL_LIBDIR=lib \
-DENABLE_SHARED:bool=off -DCONFIG_PIC=1 \
-DENABLE_EXAMPLES=0 -DENABLE_DOCS=0 -DENABLE_TESTS=0 \
-DCONFIG_SIZE_LIMIT=1 \
-DDECODE_HEIGHT_LIMIT=12288 -DDECODE_WIDTH_LIMIT=12288 \
-DDO_RANGE_CHECK_CLAMP=1 \
-DAOM_MAX_ALLOCABLE_MEMORY=536870912 \
-DAOM_TARGET_CPU=generic \
../../
make clean
make -j$(nproc)
make install
popd
# libheif
pushd $SRC/libheif
autoreconf -fi
./configure \
--disable-shared \
--enable-static \
--disable-examples \
--disable-go \
--prefix=$WORK
make clean
make -j$(nproc)
make install
popd
# libjpeg-turbo
pushd $SRC/libjpeg-turbo
cmake . -DCMAKE_INSTALL_PREFIX=$WORK -DENABLE_STATIC:bool=on
make -j$(nproc)
make install
popd
# libpng
pushd $SRC/libpng
sed -ie "s/option WARNING /option WARNING disabled/" scripts/pnglibconf.dfa
autoreconf -fi
./configure \
--prefix=$WORK \
--disable-shared \
--disable-dependency-tracking
make -j$(nproc)
make install
popd
# libgif
pushd $SRC/libgif
make libgif.a libgif.so install-include install-lib OFLAGS="-O2" PREFIX=$WORK
popd
# libwebp
pushd $SRC/libwebp
autoreconf -fi
./configure \
--enable-libwebpdemux \
--enable-libwebpmux \
--disable-shared \
--disable-jpeg \
--disable-tiff \
--disable-gif \
--disable-wic \
--disable-threading \
--disable-dependency-tracking \
--prefix=$WORK
make -j$(nproc)
make install
popd
# libtiff ... a bug in libtiff master as of 20 Nov 2019 means we have to
# explicitly disable lzma
pushd $SRC/libtiff
autoreconf -fi
./configure \
--disable-lzma \
--disable-shared \
--disable-dependency-tracking \
--prefix=$WORK
make -j$(nproc)
make install
popd
# libvips
./autogen.sh \
--disable-shared \
--disable-gtk-doc \
--disable-gtk-doc-html \
--disable-dependency-tracking \
--prefix=$WORK
make -j$(nproc) CCLD=$CXX
make install
# Merge the seed corpus in a single directory, exclude files larger than 2k
mkdir -p fuzz/corpus
find \
$SRC/afl-testcases/{gif*,jpeg*,png,tiff,webp}/full/images \
fuzz/*_fuzzer_corpus \
test/test-suite/images \
-type f -size -2k \
-exec bash -c 'hash=($(sha1sum {})); mv {} fuzz/corpus/$hash' ';'
zip -jrq $OUT/seed_corpus.zip fuzz/corpus
# Build fuzzers and link corpus
for fuzzer in fuzz/*_fuzzer.cc; do
target=$(basename "$fuzzer" .cc)
$CXX $CXXFLAGS -std=c++11 "$fuzzer" -o "$OUT/$target" \
-I$WORK/include \
-I/usr/include/glib-2.0 \
-I/usr/lib/x86_64-linux-gnu/glib-2.0/include \
$WORK/lib/libvips.a \
$WORK/lib/libexif.a \
$WORK/lib/libturbojpeg.a \
$WORK/lib/libpng.a \
$WORK/lib/libz.a \
$WORK/lib/libgif.a \
$WORK/lib/libwebpmux.a \
$WORK/lib/libwebpdemux.a \
$WORK/lib/libwebp.a \
$WORK/lib/libtiff.a \
$WORK/lib/libheif.a \
$WORK/lib/libaom.a \
$LIB_FUZZING_ENGINE \
-Wl,-Bstatic \
-lfftw3 -lgmodule-2.0 -lgio-2.0 -lgobject-2.0 -lffi -lglib-2.0 -lpcre -lexpat \
-lresolv -lsepol -lselinux \
-Wl,-Bdynamic -pthread
ln -sf "seed_corpus.zip" "$OUT/${target}_seed_corpus.zip"
done
# Copy options and dictionary files to $OUT
find fuzz -name '*_fuzzer.dict' -exec cp -v '{}' $OUT ';'
find fuzz -name '*_fuzzer.options' -exec cp -v '{}' $OUT ';'
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