This is a fairly high level overview of linkers, most of which you can find for yourself if you look up `ld` documentation [0] (mentioned in the article) and walk through it step by step in a tutorial fashion.
A more comprehensive look would be, at the very least one would hope, to have a reference manual of your favorite MCU and write the corresponding linker script for the memory sections it expects and provide stubs/thunks and other things of that nature. It's the praxis and application that brings the scary things out.
[0] https://sourceware.org/binutils/docs/ld.pdf (nb - after you've gone through the page count of some IC and MCU datasheets, 164 pages of ld will seem like a walk in the park)
A more comprehensive look would be, at the very least one would hope, to have a reference manual of your favorite MCU and write the corresponding linker script for the memory sections it expects and provide stubs/thunks and other things of that nature. It's the praxis and application that brings the scary things out.
[0] https://sourceware.org/binutils/docs/ld.pdf (nb - after you've gone through the page count of some IC and MCU datasheets, 164 pages of ld will seem like a walk in the park)