man(1) Manual page archive


     CORE(5)                                                   CORE(5)

     NAME
          core - format of core image file

     DESCRIPTION
          UNIX writes out a core image of a terminated process when
          any of various errors occur.  See signal(2) for the list of
          reasons; the most common are memory violations, illegal
          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).

          The first 1024 bytes of the core image are a copy of the
          system's per-user data for the process, including the regis-
          ters as they were at the time of the fault; see the system
          listings for the format of this area.  The remainder repre-
          sents the actual contents of the user's core area when the
          core image was written.  If the text segment is write-
          protected and shared, it is not dumped; otherwise the entire
          address space is dumped.

          In general the debugger adb(1) is sufficient to deal with
          core images.

     SEE ALSO
          adb(1), signal(2)