RFR: JDK-8320005 : Allow loading of shared objects with .a extension on AIX [v22]

[Suchismith Roy]

On Thu, 15 Feb 2024 08:15:16 GMT, Thomas Stuefe <stuefe at openjdk.org> wrote:

> Hi,
> 
> some remarks:
> 
> * there is no need for a copy for the first call to dll_load_library. Just hand in the string 1:1.
> * I would only do the *.a fallback loading if the error indicates that the *.so file had not been there. So, only if EACCESS or ENOENT; in all other cases I would not do the fallback. E.g. if the *.so file cannot be loaded due to a header mismatch. See https://www.ibm.com/docs/en/aix/7.1?topic=l-load-loadandinit-subroutines
> * Please use os::strdup.
> * Please assert that the replacement string is smaller than the original string (which it should be, *.so is longer than *.a, but this is insurance against anyone changing the code in the future)
> 
> Thank you, Thomas

Sure working on them. 
May i know why we are using the load routine in the 2nd point ? . Currently we do a *.a fallback only when dlopen fails. Does load function save some steps here ?

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PR Comment: https://git.openjdk.org/jdk/pull/16604#issuecomment-1946756694