How to prevent “main.o:(.eh_frame+0x1c): relocation truncated to fit: R_AARCH64_PREL32 against `.text'” when creating an aarch64 baremetal program?

Question

When playing with creating baremetal executables, I hit this error:

main.o:(.eh_frame+0x1c): relocation truncated to fit: R_AARCH64_PREL32 against `.text\'
c         


        

Answer 1

As a workaround that allows it to compile without me fully understanding the situation, you can add:

-fno-unwind-tables -fno-asynchronous-unwind-tables

which removes the .eh_frame frame from which the failing relocation was coming from: Why GCC compiled C program needs .eh_frame section?

I then noticed the binary doesn't work because _start has the C function prologue and touches stack first thing, and I can't find an amazing solution for that: Creating a C function without compiler generated prologue/epilogue & RET instruction? (-O3? :-) We need to invent a -fno-stack option).