RFR: JDK-8298448: UndefinedBehaviorSanitizer [v3]

[Justin King]

On Mon, 12 Dec 2022 09:58:54 GMT, Justin King <jcking at openjdk.org> wrote:

>> src/java.base/share/native/launcher/main.c line 49:
>> 
>>> 47: #endif // UNDEFINED_BEHAVIOR_SANITIZER
>>> 48: 
>>> 49: /*
>> 
>> As I said we have more launcher than 'java', if you put this method here you must put it in all launchers.
>> I.e. all binaries that call JNI_CreateJavaVM, such our tests, e.g. jni/daemonDestroy/TestDaemonDestroy.java
>
> Attempting an approach that automatically includes `__ubsan_default_options` in binaries by "automagically" including a source file for anything using `SetupNativeCompilation` with `TYPE` being `EXECUTABLE`.

Okay, I was able to get the autoconf magic working. Instead of having to copy-paste `__ubsan_default_options` to every launcher, it is instead auto-inserted in `SetupNativeCompilation` by including a source file which exports it for anything that is `EXECUTABLE`.

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PR: https://git.openjdk.org/jdk/pull/11604