How to use GDB?

[SJ5]

I have:
ubuntu 18.04, ICC latest (19.1) and problem:

/opt/intel/debugger_2019/gdb/intel64/bin# ./gdb-ia
./gdb-ia: error while loading shared libraries: libipt.so.2: cannot open shared object file: No such file or directory

[SJ5]

gcore, for example, works

/opt/intel/debugger_2019/gdb/intel64/bin# ./gcore-ia                                                                                                          
usage:  gcore-ia [-o filename] pid 

[Viet_H_Intel]

Did you " source  /<install_dir>/linux/bin/compilervars.sh intel64"?