core(4)                          DG/UX 5.4.2                         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
       sdb(1), dbx(1), setuid(2), signal(2).
       crash(1M).

































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