RFR: 8349638: Build libjdwp with SIZE optimization

[Julian Waters]

On Tue, 25 Feb 2025 13:09:08 GMT, Matthias Baesken <mbaesken at openjdk.org> wrote:

> > I'm not sure what that line in Flags.gmk has to do with LTO support, since it's setting the optimization levels.
> 
> We could offer there another option LTO, additionally to LOW, HIGH, HIGHEST, SIZE etc. .
> 
> > I don't think we should do it piece by piece like this, as Kim mentioned.
> 
> I am not sure if it is currently a good idea to set LTO for all JDK native libs; but for some it might work well and be beneficial.

Maybe I can prepare a changeset for this and send the diff just to get a cursory review on the changes, and see where to go from there. In my fork I have an --enable-linktime-opt option that enables LTO, so it would be an opt in change, and not an immediate change to the default linking behaviour, which I think is a no go as you mentioned

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PR Comment: https://git.openjdk.org/jdk/pull/23563#issuecomment-2681943267