In order to build a C++ application, do the following.

After activation of the cross-build environment (. ./ACTIVATE.sh), run the following command for Cortex-M3 targets (SimpleClass.cc being the application in the below example):

$ ${CROSS_COMPILE_APPS}g++ -o SimpleClass SimpleClass.cc -mcpu=cortex-m3
$

If your target is Cortex-M4 or Cortex-M7, run the following command instead:

$ ${CROSS_COMPILE_APPS}g++ -o SimpleClass SimpleClass.cc -mcpu=cortex-m4
$

Run the application on the target (assuming /mnt is NFS-mounted to the host):

/ # /mnt/SimpleClass
This program was written on 1-9-1999
This program was modified on 5-10-1999
/ #

NOTE: The sample application used in this application note was downloaded from the following web site: http://www.inference.phy.cam.ac.uk/teaching/comput/C++/examples/index.shtml