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fmt/test/fuzzing
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Victor Zverovich 215f21a038 Detect overflow on large precision
2021-12-05 07:26:58 -08:00
..
.gitignore
build.sh
chrono-duration.cc
chrono-timepoint.cc add fuzzers for chrono timepoint and localtime,gmtime (#2469) 2021-08-29 06:58:23 -07:00
CMakeLists.txt add fuzzers for chrono timepoint and localtime,gmtime (#2469) 2021-08-29 06:58:23 -07:00
float.cc Detect overflow on large precision 2021-12-05 07:26:58 -08:00
fuzzer-common.h
main.cc
named-arg.cc Refactor presentation types 2021-09-06 13:32:33 -07:00
one-arg.cc
README.md
two-args.cc

README.md

Running the fuzzers locally

There is a helper script to build the fuzzers, which has only been tested on Debian and Ubuntu linux so far. There should be no problems fuzzing on Windows (using clang>=8) or on Mac, but the script will probably not work out of the box.

Something along

mkdir build
cd build
export CXX=clang++
export CXXFLAGS="-fsanitize=fuzzer-no-link -DFUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION= -g"
cmake .. -DFMT_SAFE_DURATION_CAST=On -DFMT_FUZZ=On -DFMT_FUZZ_LINKMAIN=Off -DFMT_FUZZ_LDFLAGS="-fsanitize=fuzzer"
cmake --build .

should work to build the fuzzers for all platforms which clang supports.

Execute a fuzzer with for instance

cd build
export UBSAN_OPTIONS=halt_on_error=1
mkdir out_chrono
bin/fuzzer_chrono_duration out_chrono