gcc-arm-none-eabi software package provides GCC cross compiler for ARM Cortex-A/R/M processors, you can install in your Debian 8 (Jessie) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install gcc-arm-none-eabi
gcc-arm-none-eabi is installed in your system.
Make ensure the gcc-arm-none-eabi package were installed using the commands given below,
$ sudo dpkg-query -l | grep gcc-arm-none-eabi *
You will get with gcc-arm-none-eabi package name, version, architecture and description in a table
| Distro | Debian 8 jessie |
| Section | Development |
| Package | gcc-arm-none-eabi |
| Version | 4.8.4-1+11-1 |
| Description | GCC cross compiler for ARM Cortex-A/R/M processors |
| Sub Section | Devel |