10.1. Linker Overview¶
The Arm linker allows you to allocate output sections efficiently in the memory map. As the linker combines object files, it performs the following tasks:
Allocates sections into the target system’s configured memory
Relocates symbols and sections to assign them to final addresses
Resolves undefined external references between input files
The linker command language controls memory configuration, output section definition, and address binding. The language supports expression assignment and evaluation. You configure system memory by defining and creating a memory model that you design. Two powerful directives, MEMORY and SECTIONS, allow you to:
Allocate sections into specific areas of memory
Combine object file sections
Define or redefine global symbols at link time