Provided by: gdb_8.2-0ubuntu1_amd64 bug


       gcore - Generate a core file of a running program


       gcore [-a] [-o filename] pid


       Generate a core dump of a running program with process ID pid.  Produced file is
       equivalent to a kernel produced core file as if the process crashed (and if "ulimit -c"
       were used to set up an appropriate core dump limit).  Unlike after a crash, after gcore
       the program remains running without any change.


       -a  Dump all memory mappings.  The actual effect of this option depends on the Operating
           System.  On GNU/Linux, it will disable "use-coredump-filter" and enable

       -o filename
           The optional argument filename specifies the file name where to put the core dump.  If
           not specified, the file name defaults to, where pid is the running program
           process ID.


       The full documentation for GDB is maintained as a Texinfo manual.  If the "info" and "gdb"
       programs and GDB's Texinfo documentation are properly installed at your site, the command

               info gdb

       should give you access to the complete manual.

       Using GDB: A Guide to the GNU Source-Level Debugger, Richard M. Stallman and Roland H.
       Pesch, July 1991.


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