mirror of https://github.com/google/oss-fuzz.git
47 lines
1.8 KiB
Bash
47 lines
1.8 KiB
Bash
#!/bin/bash -eu
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# Copyright 2017 Google Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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################################################################################
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# Fuzz introspector uses LDFLAGS, so ensure LDFLAGS
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# is always set for other sanitizer options.
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if [ "$SANITIZER" != "introspector" ]; then
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export LDFLAGS=""
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else
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# We need to add -flto LDFLAGS because the makefile in unrar does not
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# pass cxxflags, which holds the -flto flag from fuzz-introspector.
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export LDFLAGS="-flto"
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fi
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UNRAR_DEFINES="-D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -DRAR_SMP -DRARDLL -DSILENT -DNOVOLUME"
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UNRAR_WNOS="-Wno-logical-op-parentheses -Wno-switch -Wno-dangling-else"
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UNRAR_SRC_DIR="$SRC/unrar"
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# See: https://crbug.com/oss-fuzz/19333#c3
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CFLAGS="$CFLAGS -fno-sanitize=enum"
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CXXFLAGS="$CXXFLAGS -fno-sanitize=enum"
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# build 'lib'. This builds libunrar.a and libunrar.so
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# -fPIC is required for successful compilation.
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make CXX=$CXX LDFLAGS="${LDFLAGS}" CXXFLAGS="$CXXFLAGS -fPIC $UNRAR_DEFINES $UNRAR_WNOS" \
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-C $UNRAR_SRC_DIR lib
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# remove the .so file so that the linker links unrar statically.
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rm -v $UNRAR_SRC_DIR/libunrar.so
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# build fuzzer
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$CXX $CXXFLAGS -I. $UNRAR_SRC_DIR/unrar_fuzzer.cc -o $OUT/unrar_fuzzer \
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$UNRAR_DEFINES $LIB_FUZZING_ENGINE -L$UNRAR_SRC_DIR -lunrar
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