Hello,
MQX includes the too Codesize.exe under \Program Files\Freescale\Freescale MQX 3.7\tools folder.
This tool can generate a html report based on your application map file. Make a search in MQX folder for *report.html, you will get some examples included in MQX with memory footrpint.
You can also find them in \Program Files\Freescale\Freescale MQX 3.7\mqx\examples\benchmrk\codesize\results folder
Best Regards,
Luis