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= Building WebKit with Clang Address Sanitizer (ASan) =

This page describes how to build WebKit with the clang Address Sanitizer (ASan) for various ports.

== Building the Apple Mac OS X port with ASan (Mac OS X 10.11 El Capitan and later) ==

To build with Xcode for 10.11, you simply pass in the --asan switch to set-webkit-configuration, then build.  Note that you can include ASan support with either --release or --debug switches.

{{{
./Tools/Scripts/set-webkit-configuration --release --asan
./Tools/Scripts/build-webkit
}}}

To disable ASan builds once again, use the --no-asan switch with set-webkit-configuration.

== Building WebKit GTK port with ASan ==

The previous description may work. Otherwise, try passing the `-DENABLE_SANITIZERS=address` or `-DENABLE_SANITIZERS=undefined` flags to `Tools/Script/build-webkit`.