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oss-fuzz: support i386

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Closes https://github.com/systemd/systemd/issues/23532
This commit is contained in:
Evgeny Vereshchagin 2022-05-29 06:52:54 +00:00
parent 61ad4f25ed
commit b22f5ed5fb
1 changed files with 21 additions and 1 deletions
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22
tools/oss-fuzz.sh
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@ -34,9 +34,13 @@ else
apt-get update
apt-get install -y gperf m4 gettext python3-pip \
libcap-dev libmount-dev libkmod-dev \
libcap-dev libmount-dev \
pkg-config wget python3-jinja2 zipmerge
if [[ "$ARCHITECTURE" == i386 ]]; then
apt-get install -y pkg-config:i386 libcap-dev:i386 libmount-dev:i386
fi
# gnu-efi is installed here to enable -Dgnu-efi behind which fuzz-bcd
# is hidden. It isn't linked against efi. It doesn't
# even include "efi.h" because "bcd.c" can work in "unit test" mode
@ -105,6 +109,22 @@ install -Dt "$OUT/src/shared/" \
"$build"/src/shared/libsystemd-shared-*.so \
"$build"/src/core/libsystemd-core-*.so
# Most i386 libraries have to be brought to the runtime environment somehow. Ideally they
# should be linked statically but since it isn't possible another way to keep them close
# to the fuzz targets is used here. The dependencies are copied to "$OUT/src/shared" and
# then `rpath` is tweaked to make it possible for the linker to find them there. "$OUT/src/shared"
# is chosen because the runtime search path of all the fuzz targets already points to it
# to load "libsystemd-shared" and "libsystemd-core". Stuff like that should be avoided on
# x86_64 because it tends to break coverage reports, fuzz-introspector, CIFuzz and so on.
if [[ "$ARCHITECTURE" == i386 ]]; then
for lib_path in $(ldd "$OUT"/src/shared/libsystemd-shared-*.so | perl -lne 'print $1 if m{=>\s+(/lib\S+)}'); do
lib_name=$(basename "$lib_path")
cp "$lib_path" "$OUT/src/shared"
patchelf --set-rpath \$ORIGIN "$OUT/src/shared/$lib_name"
done
patchelf --set-rpath \$ORIGIN "$OUT"/src/shared/libsystemd-shared-*.so
fi
wget -O "$OUT/fuzz-json.dict" https://raw.githubusercontent.com/rc0r/afl-fuzz/master/dictionaries/json.dict
find "$build" -maxdepth 1 -type f -executable -name "fuzz-*" -exec mv {} "$OUT" \;