gstreamer/ci/fuzzing/build-oss-fuzz.sh

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#!/bin/bash -eux
# build-oss-fuzz.sh
#
# Build script which is executed by oss-fuzz build.sh
#
# $SRC: location of code checkouts
# $OUT: location to put fuzzing targets and corpus
# $WORK: writable directory where all compilation should be executed
#
# /!\ Do not override any CC, CXX, CFLAGS, ... variables
#
rm -rf $WORK/*
rm -rf $OUT/lib $OUT/*_seed_corpus.zip
# Prefix where we will temporarily install everything
PREFIX=$WORK/prefix
mkdir -p $PREFIX
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# always try getting the arguments for static compilation/linking
# Fixes GModule not being picked when gstreamer-1.0.pc is looked up by meson
# more or less https://github.com/mesonbuild/meson/pull/6629
export PKG_CONFIG="`which pkg-config` --static"
export PKG_CONFIG_PATH=$PREFIX/lib/pkgconfig
export PATH=$PREFIX/bin:$PATH
# Minimize gst-debug level/code
export CFLAGS="$CFLAGS -DGST_LEVEL_MAX=2"
echo "CFLAGS : " $CFLAGS
echo "CXXFLAGS : " $CXXFLAGS
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# Switch to work directory
cd $WORK
mkdir -p $OUT/lib/gstreamer-1.0
# build ogg
pushd $SRC/ogg
./autogen.sh
./configure --prefix="$PREFIX" --libdir="$PREFIX/lib"
make clean
make -j$(nproc)
make install
popd
# build vorbis
pushd $SRC/vorbis
./autogen.sh
./configure --prefix="$PREFIX" --libdir="$PREFIX/lib"
make clean
make -j$(nproc)
make install
popd
# build theora
pushd $SRC/theora
./autogen.sh
./configure --prefix="$PREFIX" --libdir="$PREFIX/lib"
make clean
make -j$(nproc)
make install
popd
# Note: We don't use/build orc since it still seems to be problematic
# with clang and the various sanitizers.
# For now we only build core and base. Add other modules when/if needed
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meson \
--prefix=$PREFIX \
--libdir=lib \
--default-library=shared \
--force-fallback-for=zlib \
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-Db_lundef=false \
-Doss_fuzz=enabled \
-Dglib:oss_fuzz=enabled \
-Dglib:libmount=disabled \
-Dglib:tests=false \
-Ddoc=disabled \
-Dexamples=disabled \
-Dintrospection=disabled \
-Dgood=disabled \
-Dugly=disabled \
-Dbad=disabled \
-Dlibav=disabled \
-Dges=disabled \
-Domx=disabled \
-Dvaapi=disabled \
-Dsharp=disabled \
-Drs=disabled \
-Dpython=disabled \
-Dlibnice=disabled \
-Ddevtools=disabled \
-Drtsp_server=disabled \
-Dgst-examples=disabled \
-Dqt5=disabled \
-Dorc=disabled \
-Dgtk_doc=disabled \
-Dgstreamer:tracer_hooks=false \
-Dgst-plugins-base:opus=disabled \
-Dgst-plugins-base:pango=disabled \
_builddir \
$SRC/gstreamer
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ninja -C _builddir
ninja -C _builddir install
# copy out the fuzzing binaries
for BINARY in $(find _builddir/ci/fuzzing -type f -executable -print)
do
BASENAME=${BINARY##*/}
rm -rf "$OUT/$BASENAME*"
cp $BINARY $OUT/$BASENAME
patchelf --set-rpath '$ORIGIN/lib' $OUT/$BASENAME
done
# copy any relevant corpus
for CORPUS in $(find "$SRC/gstreamer/ci/fuzzing" -type f -name "*.corpus"); do
BASENAME=${CORPUS##*/}
pushd "$SRC/gstreamer"
zip $OUT/${BASENAME%%.*}_seed_corpus.zip . -ws -r -i@$CORPUS
popd
done
# copy dependant libraries
find "$PREFIX/lib" -maxdepth 1 -type f -name "*.so*" -exec cp -d "{}" $OUT/lib \; -print
# add rpath that point to the correct place to all shared libraries
find "$OUT/lib" -maxdepth 1 -type f -name "*.so*" -exec patchelf --debug --set-rpath '$ORIGIN' {} \;
find "$PREFIX/lib" -maxdepth 1 -type l -name "*.so*" -exec cp -d "{}" $OUT/lib \; -print
find "$PREFIX/lib/gstreamer-1.0" -maxdepth 1 -type f -name "*.so" -exec cp -d "{}" $OUT/lib/gstreamer-1.0 \;
find "$OUT/lib/gstreamer-1.0" -type f -name "*.so*" -exec patchelf --debug --set-rpath '$ORIGIN/..' {} \;
# make it easier to spot dependency issues
find "$OUT/lib/gstreamer-1.0" -maxdepth 1 -type f -name "*.so" -print -exec ldd {} \;