How to create static linked shared libraries

Question

For my master\'s thesis i\'m trying to adapt a shared library approach for an ARM Cortex-M3 embedded system. As our targeted board has no MMU I think that it would make no s

Answer 1

How much RAM do you have attached? Cortex-M systems have only a few dozen kiB on-chip and for the rest they require external SRAM.

I can't address .data relative to the code

You don't have to. You can place the library symbol jump table in the .data segment (or a segment that behaves similarly) at a fixed position.

thus GOT too. GOT would have to be accessed through an absolute address which has to be defined at link time. So why not assigning fixed absolute addresses to all symbols at link time...?

Nothing prevents you from having a second GOT placed at a fixed location, that's writable. You have to instruct your linker where and how to create it. For this you give the linker a so called "linker script", which is kind of a template-blueprint for the memory layout of the final program.