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  1. JDK
  2. JDK-8320830

[AIX] Dont mix os::dll_load() with direct dlclose() calls

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    • b27
    • aix

    Backports

      Description

        We should not mix os::dll_load() with dlclose(), but should call os::dll_unload(). At the moment this is benign, but this prevents certain type of platforms specific workarounds inside os::dll_load().

        There are two places I see where this happens, both are AIX specific:

        ```
        os/aix/libodm_aix.cpp
        51: dlclose(_libhandle);
        58: if (_libhandle) { dlclose(_libhandle); }

        os/aix/libperfstat_aix.cpp
        117: dlclose(g_libhandle);
        ```

        Also, "void* _libhandle" is a bug: It uses a local variable instead of the class member.

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            backported by

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8322695 [AIX] Dont mix os::dll_load() with direct dlclose() calls

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • Resolved
            relates to

            Enhancement - null JDK-8313616 support loading library members on AIX in os::dll_load

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • Resolved

            Enhancement - null JDK-8320890 [AIX] Find a better way to mimic dl handle equality

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • Resolved

            Bug - A problem which impairs or prevents the functions of the product. JDK-8320005 Allow loading of shared objects with .a extension on AIX

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • Resolved
            links to

            Commit Commit openjdk/jdk21u-dev/ca26279e

            Commit Commit openjdk/jdk/61653a1f

            Review Review openjdk/jdk21u-dev/86

            Review Review openjdk/jdk/16846

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                jkern Joachim Kern
                stuefe Thomas Stuefe
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                  Updated:
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