If it is ELF, print a diagnostic saying that it is not supported yet
by this program. This is a stop-gap anti-bug-report measure because
it looks like there won't be time to implement gcore's ELF support
before 3.0 is released.
not equal, the command line arguments are wrong. E.g.:
$./gcore /bin/sh 1761
$ ./gcore /usr/tmp/chroot/bin/sh 1761
gcore: The executable /usr/tmp/chroot/bin/sh does not belong to process 1761!
Text segment size (in bytes): executable 303104, process 294912
automagically. -lfoo has to be right to work, but ${LIBFO0} is too
easy to forget or misspell; nothing checks it and it should be
different for shared libraries.