I am working on a project using a arm cortex-m3 processor that needs
relocatable code. The relocation is such that the .text and .data
sections will have a different offset when loaded than what they were
compiled with (the .text section can be loaded to different sections of
internal flash while the .data section will always reside in the same
location of sram). If I keep the .got with .text section I can get the
global variables to have the correct addresses but my static local
variables have the wrong address (they are offset from where they should
be the amount that the .text segment shifted). I think the static locals
are referenced from the start of the .GOT section which is why I am
having problems. I am compiling all my c code with –fpic and linking
with –fpic and –pie. Is there any way to either force the static locals
(and maybe global variables) to absolute addresses or to relocate the
.GOT section dynamically? I tried doing by placing the GOT section with
the data but when I do so code does not locate the GOT section
correctly. I thought that perhaps I should be using |-msingle-pic-base
and -mpic-register=|/reg /but so far all attempts to use this did not
work at all.
Any help you can provide would be greatly appreciated.
