> nasm -felf64 -o main.o mappings_loop.asm 
> ld -o main main.o
> ./main &
[1] 2186
> cat /proc/2186/maps
00400000-00401000 r-xp 00000000 08:01 144225 /home/stud/main
00600000-00601000 rwxp 00000000 08:01 144225 /home/stud/main
7fff11ac0000-7fff11ae1000 rwxp 00000000 00:00 0 [stack]
7fff11bfc000-7fff11bfe000 r-xp 00000000 00:00 0 [vdso]
7fff11bfe000-7fff11c00000 r--p 00000000 00:00 0 [vvar]
ffffffffff600000-ffffffffff601000 r-xp 00000000 00:00 0 [vsyscall]
