RFR: 8308246: PPC64le build broken after JDK-8304913

[Martin Doerr]

On Wed, 17 May 2023 09:00:01 GMT, Alan Bateman <alanb at openjdk.org> wrote:

>> PPC64le needs to get recognized as PPC64. Otherwise, jlink doesn't recognize the platform and throws a PluginException: ModuleTarget is malformed: No enum constant jdk.internal.util.Architecture.PPC64LE.
>
> src/jdk.jlink/share/classes/jdk/tools/jlink/internal/Platform.java line 55:
> 
>> 53:         // Alias architecture "amd64" to "X64" and "ppc64le" to "ppc64"
>> 54:         archName = archName.replace("amd64", "X64")
>> 55:                            .replace("ppc64le", "ppc64");
> 
> Is linux-ppc64 big endian? If so, a module with a ModuleTarget value of linux-ppc64le can't be linked with a module that has ModuleTarget value of linux-ppc64.  I'm not say the aliasing here is wrong but I am curious if attempts to link will fail.

Yes, linux-ppc64 is big endian. The 2 flavors are completely incompatible. linux-ppc64le is basically a new platform. Endianness should actually get checked in addition to the archName.

-------------

PR Review Comment: https://git.openjdk.org/jdk/pull/14027#discussion_r1196183985