gstreamer/ci/fuzzing/build-oss-fuzz.sh
Matthew Waters bd5d24822a build/fuzzing: integrate fuzz targets into the build system
Currently disabled but may be enabled later.

Updates the existing fuzzing to use shared libraries as that's easier
for meson to deal with if there is a mix of static and shared libraries
on the system.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2123>
2022-04-07 08:17:35 +10:00

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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 $PREFIX
# always try getting the arguments for static compilation/linking
# Fixes GModule not being picked when gstreamer-1.0.pc is looked up by meson
# more or less https://github.com/mesonbuild/meson/pull/6629
export PKG_CONFIG="`which pkg-config` --static"
export PKG_CONFIG_PATH=$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
# 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
meson \
--prefix=$PREFIX \
--libdir=lib \
--default-library=shared \
--force-fallback-for=zlib \
-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
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 {} \;