RFR: JDK-8298448: UndefinedBehaviorSanitizer [v8]

[Robbin Ehn]

On Fri, 16 Dec 2022 16:10:10 GMT, Magnus Ihse Bursie <ihse at openjdk.org> wrote:

>> Justin King has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Simplify logic for including __ubsan_default_options
>>   
>>   Signed-off-by: Justin King <jcking at google.com>
>
> I much also check: is this really needed for *all* executables we make? I would have guessed that it would suffice with the "launchers", i.e. like `java`, `javac`, `jar` etc. These are all compiled from a single source file, `src/java.base/share/native/launcher/main.c`, with different defines depending on what Java classes it should actually launch, and with different output names.
> 
> Doing things this way will also affect non-launcher executables, like `jabswitch`, `msiwrapper` and all executable test binaries. 
> 
> That might be correct, but I could not be certain of that from trying to read the backlog of discussion in this bug.

I think @magicus is back next week. Since this is mainly build stuff I'll sit this one out.

-------------

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