GDB, the GNU Project debugger, allows you to see what is going on "inside" another program while it executes
https://anaconda.org/neok.m4700/gdb/badges/version.svg
https://anaconda.org/neok.m4700/gdb/badges/latest_release_date.svg
https://anaconda.org/neok.m4700/gdb/badges/latest_release_relative_date.svg
https://anaconda.org/neok.m4700/gdb/badges/platforms.svg
https://anaconda.org/neok.m4700/gdb/badges/license.svg
https://anaconda.org/neok.m4700/gdb/badges/downloads.svg