core(4)                                                             core(4)

NAME
     core - core image file

DESCRIPTION
     The Reliant UNIX system writes out a core image of a process when the
     process is terminated due to the receipt of some signals [see
     signal(2) and signal(5)]. The most common are memory violations, ille-
     gal instructions, bus errors, and user-generated quit signals. The
     core image is called core and is written in the process's working
     directory (provided it can be; normal access controls apply). A pro-
     cess 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.

     The second section of the core image contains a copy of the data seg-
     ment of the terminated process.

     The third section of the core image is a copy of the stack segment of
     the terminated process.

     After the data and stack core image follows an optional section for
     the shared memory.

SEE ALSO
     crash(1M), getrlimit(2), setuid(2), signal(2), ulimit(2), signal(5).




























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