RFR: 8370438: Offer link time optimization support on library level

Tue Oct 28 14:41:11 UTC 2025

We currently have support for LTO (link time optimization) for Hotspot/libjvm, that can be enabled as a JVM feature.
But for other JDK native libs, we do not have support for this feature.
LTO and sometimes lead to faster and also in some cases smaller binaries, so support for this might be interesting also for other libs and not only libjvm.

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Commit messages:
 - Suggestions erikj
 - JDK-8370438

Changes: https://git.openjdk.org/jdk/pull/27976/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=27976&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8370438
  Stats: 39 lines in 6 files changed: 39 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/27976.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/27976/head:pull/27976

PR: https://git.openjdk.org/jdk/pull/27976