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  1. JDK
  2. JDK-8265417

Backport of JDK-8249672 breaks Solaris x86 build



    • b01
    • x86
    • solaris


      (created on behalf of Steffen Moser. Weirdly, his original mail to compiler-dev cannot be found on the mailing list archive).

      Hi all,

      I am new into JDK contribution/bug reporting, so I really hope I've
      chosen the right way to report a bug - at least I could neither find a
      possibility to register for openjdk.java.net nor did my Oracle SSO
      account work on this site.

      Bug report: In JDK-8249672, the microcode version of an x86 CPU was
      added to the "features_string" printed in an hs_err_pidXXXXX log file.
      As far as I know, it was introduced to JDK-16 and back-ported to both,
      JDK-15 and JDK-11 last year. While Solaris support was (unfortunately)
      abandoned in JDK-15, JDK-11 still supports and should further support
      Solaris on both SPARC and x86 if my information is correct.

      I desperately need JDK-11 (and probably newer versions of Java) in order
      to run several modern open-source tools. When trying to compile JDK-11
      on Solaris 11.4 SRU 31 on x86 according to [1] and [2], I run into the
      following compile error problem:

          "./src/hotspot/cpu/x86/vm_version_x86.cpp", line 753: Error:
      cpu_microcode_revision is not a member of os.
          1 Error(s) detected.

      The reason is quite obvious. The method


      is not defined for the Solaris platform as JDK-8249672 does not alter


      The question is: How should we fix it? Is it allowed to call Solaris'

          /usr/sbin/ucodeadm -v

      and parse this binary's results or do we have to get the contents from
      "/dev/ucode" (which seems to be the symlink to the pseudo-device
      "/devices/pseudo/ucode@0:ucode" and is accessed by ucodeadm) manually?

      Any help to make JDK 11 compiling on Solaris 11.4/x86 again would be
      highly appreciated. Thank you very much in advance!

      Kind regards,

      [1] https://blogs.oracle.com/solaris/building-openjdk-12-using-jdk-8


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              stuefe Thomas Stuefe
              stuefe Thomas Stuefe
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