76 lines
2.8 KiB
Bash
Executable File
76 lines
2.8 KiB
Bash
Executable File
#!/bin/bash -eu
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# Copyright 2019 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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# build project
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if [ "$SANITIZER" = undefined ]; then
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export CFLAGS="$CFLAGS -fno-sanitize=unsigned-integer-overflow"
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export CXXFLAGS="$CXXFLAGS -fno-sanitize=unsigned-integer-overflow"
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fi
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cd binutils-gdb
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# Comment out the lines of logging to stderror from elfcomm.c
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# This is to make it nicer to read the output of libfuzzer.
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cd binutils
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sed -i 's/vfprintf (stderr/\/\//' elfcomm.c
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sed -i 's/fprintf (stderr/\/\//' elfcomm.c
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cd ../
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./configure --disable-gdb --disable-gdbserver --disable-gdbsupport \
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--disable-libdecnumber --disable-readline --disable-sim \
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--enable-targets=all --disable-werror
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make MAKEINFO=true && true
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# Make fuzzer directory
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mkdir fuzz
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cp ../fuzz_*.c fuzz/
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cd fuzz
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for i in fuzz_disassemble fuzz_bfd; do
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$CC $CFLAGS -I ../include -I ../bfd -I ../opcodes -c $i.c -o $i.o
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$CXX $CXXFLAGS $i.o -o $OUT/$i $LIB_FUZZING_ENGINE ../opcodes/libopcodes.a ../bfd/libbfd.a ../libiberty/libiberty.a ../zlib/libz.a
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done
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# TODO build corpuses
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# Now compile the src/binutils fuzzers
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cd ../binutils
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# First copy the fuzzers, modify applications and copile object files
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for i in readelf; do
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cp ../../fuzz_$i.c .
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# Modify main functions so we dont have them anymore
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sed 's/main (int argc/old_main (int argc, char **argv);\nint old_main (int argc/' $i.c >> $i.h
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# Compile object file
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$CC $CFLAGS -DHAVE_CONFIG_H -I. -I../bfd -I./../bfd -I./../include -I./../zlib -DLOCALEDIR="\"/usr/local/share/locale\"" -Dbin_dummy_emulation=bin_vanilla_emulation -W -Wall -MT fuzz_$i.o -MD -MP -c -o fuzz_$i.o fuzz_$i.c
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done
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# Link the files
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# Only link if they exist
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if ([ -f dwarf.o ] && [ -f elfcomm.o ] && [ -f version.o ]); then
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## Readelf
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$CXX $CXXFLAGS $LIB_FUZZING_ENGINE -W -Wall -I./../zlib -o fuzz_readelf fuzz_readelf.o version.o unwind-ia64.o dwarf.o elfcomm.o ../libctf/.libs/libctf-nobfd.a -L/src/binutils-gdb/zlib -lz ../libiberty/libiberty.a
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mv fuzz_readelf $OUT/fuzz_readelf
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### Set up seed corpus for readelf in the form of a single ELF file.
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zip fuzz_readelf_seed_corpus.zip /src/fuzz_readelf_seed_corpus/simple_elf
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mv fuzz_readelf_seed_corpus.zip $OUT/
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## Copy over the options file
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cp $SRC/fuzz_readelf.options $OUT/fuzz_readelf.options
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fi
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