How to use RIP Relative Addressing in a 64-bit assembly program?

Question

How do I use RIP Relative Addressing in a Linux assembly program for the AMD64 archtitecture? I am looking for a simple example (a Hello world program) that uses the AMD64 R

Answer 1

I believe that you want to load the address of your string into %rsi; your code attempts to load a quadword from that address rather than the address itself. You want:

lea msg(%rip), %rsi

if I'm not mistaken. I don't have a linux box to test on, however.

Answer 2

Since you need the address of msg in %rsi, just replace:

mov msg(%rip),%rsi

with:

lea msg(%rip),%rsi