Adds Linux -fdebug-prefix-map'ing for SUPPORT_OUTPUTDIR and HOTSPOT_OUTPUTDIR when absolute paths are not allowed in the binaries, thus making the building of a JDK identically reproducible from different build directories.
------------- Commit messages: - 8326685: Linux builds not reproducible if two builds configured in different build folders Changes: https://git.openjdk.org/jdk/pull/18009/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=18009&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8326685 Stats: 2 lines in 1 file changed: 2 ins; 0 del; 0 mod Patch: https://git.openjdk.org/jdk/pull/18009.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/18009/head:pull/18009 PR: https://git.openjdk.org/jdk/pull/18009
