Uploaded image for project: 'JDK'
  1. JDK
  2. JDK-8016696

PPC64 (part 4): add relocation for trampoline stubs

    XMLWordPrintable

Details

    • Enhancement
    • Resolution: Fixed
    • P3
    • port-stage-ppc-aix
    • port-stage-ppc-aix
    • hotspot
    • None
    • ppc
    • generic

    Backports

      Description

        This is preparation for PPC64 integration: http://openjdk.java.net/jeps/175
        This and following ppc64 changes will go into staging repository first and tested there: http://hg.openjdk.java.net/ppc-aix-port/stage/

        A trampoline allows to encode a small branch in the code, even if there
        is the chance that this branch can not reach all possible code locations.
        If the relocation finds that a branch is too far for the instruction
        in the code, it can patch it to jump to the trampoline where is
        sufficient space for a far branch. Needed on PPC64.

        http://hg.openjdk.java.net/ppc-aix-port/jdk8/hotspot/file/df79d76c17ab/ppc_patches/0004_opto-trampoline_relocations.patch

        Attachments

          Issue Links

            Activity

              People

                kvn Vladimir Kozlov
                kvn Vladimir Kozlov
                Votes:
                0 Vote for this issue
                Watchers:
                4 Start watching this issue

                Dates

                  Created:
                  Updated:
                  Resolved: