Details

    • Sub-task
    • Status: Resolved
    • P3
    • Resolution: Fixed
    • 16
    • 16
    • hotspot
    • None
    • b07
    • linux

    Description

      I'd like to add the following work around for JDK-8248876 so it no longer causes an NPE every time you try to use "findpc" functionality for the work being done for JDK-8247514. The only user of the LoadObjects that cares about the "base" address is loadObjectContainingPC(). The easy fix is to just add a null check before using "base" to determine if the PC is in the LoadObject:

            if (base == null) continue; // Skip. LoadObject was not properly initialized.
            if (pc.greaterThanOrEqual(base) && pc.lessThan(base.addOffsetTo(size))) {
                return ob;
            }

      The only short coming of this fix is that address -> symbol lookups for addresses in the exec file (bin/java) will fail. This is not something that an SA user is ever likely to run into. Symbols of interest are typically in libjvm.so.

      Attachments

        Issue Links

          Activity

            People

              cjplummer Chris Plummer
              cjplummer Chris Plummer
              Votes:
              0 Vote for this issue
              Watchers:
              1 Start watching this issue

              Dates

                Created:
                Updated:
                Resolved: