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libafl_libfuzzer optimization experiment #1903

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libafl_libfuzzer optimization experiment #1903

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cdc3f25
squash and rollback rebase
addisoncrump Sep 26, 2023
b013bea
update commit
addisoncrump Sep 27, 2023
1b37ee1
update commit
addisoncrump Sep 27, 2023
1d7165b
update commit
addisoncrump Sep 27, 2023
99c44ea
update commit
addisoncrump Sep 29, 2023
707283e
drop libfuzzer best, just update libafl_libfuzzer
addisoncrump Nov 21, 2023
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6 changes: 3 additions & 3 deletions fuzzers/libafl_libfuzzer/builder.Dockerfile
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Original file line number Diff line number Diff line change
Expand Up @@ -34,9 +34,9 @@ RUN if which rustup; then rustup self uninstall -y; fi && \
# Download libafl.
RUN git clone https://github.com/AFLplusplus/libafl /libafl && \
cd /libafl && \
git checkout defe9084aed5a80ac32fe9a1f3ff00baf97738c6 && \
git checkout ed4178ecd12636fa054b18d1fc716ac414e90440 && \
unset CFLAGS CXXFLAGS && \
export LIBAFL_EDGES_MAP_SIZE=2621440 && \
cd ./libafl_libfuzzer/libafl_libfuzzer_runtime && \
env -i CXX=$CXX CC=$CC PATH="/root/.cargo/bin/:$PATH" cargo build --profile release-fuzzbench && \
cp ./target/release-fuzzbench/libafl_libfuzzer_runtime.a /usr/lib/libFuzzer.a
env -i CXX=$CXX CC=$CC PATH="/root/.cargo/bin/:$PATH" ./build.sh release-fuzzbench && \
cp ./libFuzzer.a /usr/lib/libFuzzer.a
9 changes: 0 additions & 9 deletions fuzzers/libafl_libfuzzer/fuzzer.py
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Expand Up @@ -48,15 +48,6 @@ def build():
os.environ['CC'] = 'clang'
os.environ['CXX'] = 'clang++'

# merge all of our lib into a single .o, then pack that into a static lib
subprocess.check_call([
'/usr/bin/ld', '-Ur', '--whole-archive', '/usr/lib/libFuzzer.a', '-o',
'/tmp/libFuzzerMerged.o'
])
subprocess.check_call(['/usr/bin/rm', '/usr/lib/libFuzzer.a'])
subprocess.check_call(
['/usr/bin/ar', 'cr', '/usr/lib/libFuzzer.a', '/tmp/libFuzzerMerged.o'])

os.environ['FUZZER_LIB'] = '/usr/lib/libFuzzer.a'

utils.build_benchmark()
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