libldm-dbg software package provides Debug symbols for libldm, you can install in your Ubuntu 14.04 LTS (Trusty Tahr) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install libldm-dbg
libldm-dbg is installed in your system.
Make ensure the libldm-dbg package were installed using the commands given below,
$ sudo dpkg-query -l | grep libldm-dbg *
You will get with libldm-dbg package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Debug packages |
| Package | libldm-dbg |
| Version | 0.2.3-2ubuntu1 |
| Description | Debug symbols for libldm |
| Sub Section | debug |