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  1. JDK
  2. JDK-8021771

warning: stat64 is deprecated - when building on OSX 10.7.5

    Details

    • Subcomponent:
      svc
    • Introduced In Build:
      b43
    • Introduced In Version:
    • Resolved In Build:
      b46
    • OS:
      os_x
    • Verification:
      Not verified

      Backports

        Description

        Kris Mok reports:

        I'm building a freshly cloned repo from the tip of hotspot-comp on Mac OS X
        10.7.5, and got and error:

        llvm-g++ -D_ALLBSD_SOURCE -D_GNU_SOURCE -DAMD64 -DASSERT -I.
        -I/Users/rednaxelafx/build/hotspot-comp/hotspot/src/share/vm/prims
        -I/Users/rednaxelafx/build/hotspot-comp/hotspot/src/share/vm
        -I/Users/rednaxelafx/build/hotspot-comp/hotspot/src/share/vm/precompiled
        -I/Users/rednaxelafx/build/hotspot-comp/hotspot/src/cpu/x86/vm
        -I/Users/rednaxelafx/build/hotspot-comp/hotspot/src/os_cpu/bsd_x86/vm
        -I/Users/rednaxelafx/build/hotspot-comp/hotspot/src/os/bsd/vm
        -I/Users/rednaxelafx/build/hotspot-comp/hotspot/src/os/posix/vm
        -I../generated -DHOTSPOT_RELEASE_VERSION="\"25.0-b44-internal\""
        -DHOTSPOT_BUILD_TARGET="\"fastdebug\""
        -DHOTSPOT_BUILD_USER="\"rednaxelafx\"" -DHOTSPOT_LIB_ARCH=\"amd64\"
        -DHOTSPOT_VM_DISTRO="\"OpenJDK\"" -DTARGET_OS_FAMILY_bsd -DTARGET_ARCH_x86
        -DTARGET_ARCH_MODEL_x86_64 -DTARGET_OS_ARCH_bsd_x86
        -DTARGET_OS_ARCH_MODEL_bsd_x86_64 -DTARGET_COMPILER_gcc -DCOMPILER2
        -DCOMPILER1 -fPIC -fno-rtti -fno-exceptions -pthread -fcheck-new -m64
         -pipe -fno-strict-aliasing -DMAC_OS_X_VERSION_MAX_ALLOWED=1070
        -mmacosx-version-min=10.7.0 -Os -DVM_LITTLE_ENDIAN -D_LP64=1
        -fno-omit-frame-pointer -Werror -Wunused-function -DDTRACE_ENABLED
         -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -DALLOW_OPERATOR_NEW_USAGE -c -MMD -MP
        -MF ../generated/dependencies/attachListener_bsd.o.d -fpch-deps -o
        attachListener_bsd.o
        /Users/rednaxelafx/build/hotspot-comp/hotspot/src/os/bsd/vm/attachListener_bsd.cpp
        cc1plus: warnings being treated as errors
        /Users/rednaxelafx/build/hotspot-comp/hotspot/src/os/bsd/vm/attachListener_bsd.cpp:
        In static member function ‘static void AttachListener::vm_start()’:
        /Users/rednaxelafx/build/hotspot-comp/hotspot/src/os/bsd/vm/attachListener_bsd.cpp:455:
        warning: ‘stat64’ is deprecated (declared at /usr/include/sys/stat.h:466)
        /Users/rednaxelafx/build/hotspot-comp/hotspot/src/os/bsd/vm/attachListener_bsd.cpp:455:
        warning: ‘stat64’ is deprecated (declared at /usr/include/sys/stat.h:466)
        make[6]: *** [attachListener_bsd.o] Error 1

        The problem came from a recent commit [1]:
        7162400: Intermittent java.io.IOException: Bad file number during
        HotSpotVirtualMachine.executeCommand

        According to [2], the *-64 variants of the stat*() functions have been
        deprecated on Mac OS X and should be avoided.

        The fix is simple:
        diff -r d90d1b96b65b src/os/bsd/vm/attachListener_bsd.cpp
        --- a/src/os/bsd/vm/attachListener_bsd.cpp Fri Jul 26 12:37:39 2013 -0700
        +++ b/src/os/bsd/vm/attachListener_bsd.cpp Sun Jul 28 15:55:54 2013 +0800
        @@ -445,14 +445,14 @@

         void AttachListener::vm_start() {
           char fn[UNIX_PATH_MAX];
        - struct stat64 st;
        + struct stat st;
           int ret;

           int n = snprintf(fn, UNIX_PATH_MAX, "%s/.java_pid%d",
                    os::get_temp_directory(), os::current_process_id());
           assert(n < (int)UNIX_PATH_MAX, "java_pid file name buffer overflow");

        - RESTARTABLE(::stat64(fn, &st), ret);
        + RESTARTABLE(::stat(fn, &st), ret);
           if (ret == 0) {
             ret = ::unlink(fn);
             if (ret == -1) {

        I'm not sure if this should be done for all BSD platforms. Could anybody
        help confirm this?

        Thanks,
        Kris

        (P.S. recovering from bad health...)

        [1]: http://hg.openjdk.java.net/hsx/hotspot-comp/hotspot/rev/2e8f19c2feef
        [2]:
        https://developer.apple.com/library/mac/documentation/Darwin/Reference/ManPages/man2/stat64.2.html

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                • Assignee:
                  dsamersoff Dmitriy Samersoff
                  Reporter:
                  dholmes David Holmes
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                  • Created:
                    Updated:
                    Resolved: