core(4)                    DG/UX 4.30                     core(4)



     NAME
          core - format of core image file

     DESCRIPTION
          The system writes out a core image of a terminated process
          when any of several errors occur.  See signal(2) for the
          list of reasons; the most common are memory violations,
          illegal instructions, and user-generated quit signals.  The
          core image is called core and is written in the process's
          working directory (if possible; normal access controls
          apply).  A process with an effective user id different from
          the real user id will not produce a core image.

          The first section of the core image is a copy of the
          system's per-user data for the process, including the
          registers as they were at the time of the fault.  The
          remainder represents the actual contents of the user's core
          area when the core image was written.  The text segment is
          not dumped.

          The format of the information in the first section is
          described by the user structure of the system, defined in
          /usr/include/sys/user.h.

     SEE ALSO
          setuid(2), signal(2).
          crash(1m) in the System Manager's Reference for the DG/UX
          System.
          dbx(1) in the User's Reference for the DG/UX System.


























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