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Tests/Fuzzing: Improve local repro documentation

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Tyler Yankee
2026-02-16 12:26:48 -05:00
parent ac1c4a611d
commit 3b1408d8be
1 changed files with 13 additions and 2 deletions
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Tests/Fuzzing/README.rst
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@@ -12,7 +12,10 @@ All fuzzers are implemented using the `libFuzzer engine`_.
Building Locally
----------------
To build the fuzzers locally with Clang and libFuzzer::
See `reproducing OSS-Fuzz bugs locally`_ for official instructions from
OSS-Fuzz on reproducing using Docker.
Unofficially, to build the fuzzers locally with Clang and libFuzzer:
mkdir build && cd build
cmake -DCMAKE_C_COMPILER=clang -DCMAKE_CXX_COMPILER=clang++ \
@@ -20,7 +23,15 @@ To build the fuzzers locally with Clang and libFuzzer::
-DCMAKE_C_FLAGS="-fsanitize=fuzzer-no-link,address" \
-DCMAKE_CXX_FLAGS="-fsanitize=fuzzer-no-link,address" \
..
make -j$(nproc)
cmake --build .
The above command runs the fuzzers using address sanitizer (ASAN). Fuzzing can
also be performed using memory (MSAN) or undefined behavior (UBSAN) sanitizers.
Adjust the ``CMAKE_(C|CXX)_FLAGS`` accordingly using
``-fsanitizer=fuzzer-no-link,memory`` or
``-fsanitizer=fuzzer-no-link,undefined``, respectively.
.. _`reproducing OSS-Fuzz bugs locally`: https://google.github.io/oss-fuzz/getting-started/reproducing-bugs-locally/
Seed Corpora
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