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annotate dep/fmt/test/fuzzing/README.md @ 345:d085c05247bd

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build: fix windows build
author Paper <paper@paper.us.eu.org>
date Thu, 20 Jun 2024 07:39:01 -0400
parents 1faa72660932
children
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1 # Running the fuzzers locally
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3 There is a [helper script](build.sh) to build the fuzzers, which has only been
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4 tested on Debian and Ubuntu linux so far. There should be no problems fuzzing on
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5 Windows (using clang>=8) or on Mac, but the script will probably not work out of
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6 the box.
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8 Something along
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9 ```sh
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10 mkdir build
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11 cd build
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12 export CXX=clang++
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13 export CXXFLAGS="-fsanitize=fuzzer-no-link -DFUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION= -g"
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14 cmake .. -DFMT_SAFE_DURATION_CAST=On -DFMT_FUZZ=On -DFMT_FUZZ_LINKMAIN=Off -DFMT_FUZZ_LDFLAGS="-fsanitize=fuzzer"
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15 cmake --build .
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16 ```
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17 should work to build the fuzzers for all platforms which clang supports.
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19 Execute a fuzzer with for instance
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20 ```sh
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21 cd build
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22 export UBSAN_OPTIONS=halt_on_error=1
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23 mkdir out_chrono
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24 bin/fuzzer_chrono_duration out_chrono
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25 ```