mirror of https://github.com/google/oss-fuzz.git
31 lines
1.4 KiB
Markdown
31 lines
1.4 KiB
Markdown
# Reference
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## Sanitizers
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Fuzzers are usually built with one or more [sanitizer](https://github.com/google/sanitizers) enabled.
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You can select sanitizer configuration by specifying `$SANITIZER` build environment variable using `-e` option:
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```bash
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python infra/helper.py build_fuzzers -e SANITIZER=undefined json
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```
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Supported sanitizers:
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| `$SANITIZER` | Description
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| ------------ | ----------
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| `address` *(default)* | [Address Sanitizer](https://github.com/google/sanitizers/wiki/AddressSanitizer) with [Leak Sanitizer](https://github.com/google/sanitizers/wiki/AddressSanitizerLeakSanitizer).
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| `undefined` | [Undefined Behavior Sanitizer](http://clang.llvm.org/docs/UndefinedBehaviorSanitizer.html).
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| `memory` | [Memory Sanitizer](https://github.com/google/sanitizers/wiki/MemorySanitizer).<br/>*NOTE: It is critical that you build __all__ the code in your program (including libraries it uses) with Memory Sanitizer. Otherwise, you will see false positive crashes due to an inability to see initializations in uninstrumented code.*
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Compiler flag values for predefined configurations are specified in the [Dockerfile](../infra/base-images/base-builder/Dockerfile).
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These flags can be overriden by specifying `$SANITIZER_FLAGS` directly.
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You can choose which configurations to automatically run your fuzzers with in `project.yaml` file (e.g. [sqlite3](../projects/sqlite3/project.yaml)):
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```yaml
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sanitizers:
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- address
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- undefined
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```
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