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21 lines
885 B
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21 lines
885 B
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.. _fuzzing:
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Fuzzing for LLVM-libc functions
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===============================
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Fuzz tests are used to ensure quality and security of LLVM-libc implementations.
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All fuzz tests live under the directory named ``fuzzing``. Within this
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directory, the fuzz test for a libc function lives in the same nested directory
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as its implementation in the toplevel ``src`` directory. The build target
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``libc-fuzzer`` builds all of the enabled fuzz tests (but does not run them).
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Types of fuzz tests
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===================
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As of this writing, there are two different kinds of fuzz tests. One kind are
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the traditional fuzz tests which test one function at a time and only that
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particular function. The other kind of tests are what we call as the
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differential fuzz tests. These tests compare the behavior of LLVM libc
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implementations with the behavior of the corresponding functions from the system
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libc.
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