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  1. JDK
  2. JDK-8190284

link-time-opt should not be using -fwhole-program

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Details

    • Bug
    • Status: Resolved
    • P4
    • Resolution: Fixed
    • 10
    • 10
    • infrastructure
    • None
    • b34

    Description

      When building hotspot with link-time-opt, we are currently using -fwhole-program to the linker. This causes all public symbols to be removed. To counter this, the attribute "externally_visible" has been added to JNIEXPORT for arm (the platform that traditionally has used link-time-opt).

      This is not an appropriate way of doing things.

      The gcc documentation says about "-fwhole-program": "This option should not be used in combination with -flto. Instead relying on a linker plugin should provide safer and more precise information."

      If we replace -fwhole-program with -fuse-linker-plugin, the need to use externally_visible disappears.

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              ihse Magnus Ihse Bursie
              ihse Magnus Ihse Bursie
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                Updated:
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