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  1. JDK
  2. JDK-8174050

Compilation errors with clang-4.0

    Details

    • Type: Bug
    • Status: Resolved
    • Priority: P3
    • Resolution: Fixed
    • Affects Version/s: 9
    • Fix Version/s: 10
    • Component/s: hotspot
    • Labels:
    • Subcomponent:
    • Resolved In Build:
      b22

      Backports

        Description

        Building and testing with recent clang's is a Product Excellence sort of thing.
        Besides good warnings, it enables the ability to run things like ASAN over the jdk sources.

        clang-4.0 fail to compile hotspot, giving:

        Building target 'images' in configuration 'linux-x86_64-normal-server-release'
        /home/martin/ws/jdk9-clang/hotspot/src/share/vm/memory/virtualspace.cpp:584:14: error: ordered comparison between pointer and zero ('char *' and 'int')
          if (base() > 0) {
              ~~~~~~ ^ ~
        1 error generated.
        make[3]: *** [/home/martin/ws/jdk9-clang/build/linux-x86_64-normal-server-release/hotspot/variant-server/libjvm/objs/virtualspace.o] Error 1
        /home/martin/ws/jdk9-clang/hotspot/src/share/vm/opto/lcm.cpp:42:35: error: ordered comparison between pointer and zero ('address' (aka 'unsigned char *') and 'int')
          if (Universe::narrow_oop_base() > 0) { // Implies UseCompressedOops.
              ~~~~~~~~~~~~~~~~~~~~~~~~~~~ ^ ~
        1 error generated.
        make[3]: *** [/home/martin/ws/jdk9-clang/build/linux-x86_64-normal-server-release/hotspot/variant-server/libjvm/objs/lcm.o] Error 1
        make[3]: Target `default' not remade because of errors.
        make[2]: *** [hotspot-server-libs] Error 1
        make[2]: Target `images' not remade because of errors.

        ERROR: Build failed for target 'images' in configuration 'linux-x86_64-normal-server-release' (exit code 2)

        === Output from failing command(s) repeated here ===
        * For target hotspot_variant-server_libjvm_objs_lcm.o:
        /home/martin/ws/jdk9-clang/hotspot/src/share/vm/opto/lcm.cpp:42:35: error: ordered comparison between pointer and zero ('address' (aka 'unsigned char *') and 'int')
          if (Universe::narrow_oop_base() > 0) { // Implies UseCompressedOops.
              ~~~~~~~~~~~~~~~~~~~~~~~~~~~ ^ ~
        1 error generated.
        * For target hotspot_variant-server_libjvm_objs_virtualspace.o:
        /home/martin/ws/jdk9-clang/hotspot/src/share/vm/memory/virtualspace.cpp:584:14: error: ordered comparison between pointer and zero ('char *' and 'int')
          if (base() > 0) {
              ~~~~~~ ^ ~
        1 error generated.

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                • Assignee:
                  martin Martin Buchholz
                  Reporter:
                  martin Martin Buchholz
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                  • Created:
                    Updated:
                    Resolved: