Elecia White of the fantastic Embedded.fm podcast gave a talk at the Embedded Online Conference 2021 about how to use memory map files:

Buried treasures and map files

Slides

Memory Map Land Image

Also at Inkarnate where I put it together

And at Society6 which is rumored to produce good prints

Hello.map and Hello.cmd linker file (TI processor)

Map file for the BLE and Zigbee application (TI processor)

Map file for Circuit Python on the SEEDunio via GCC