any function arguments go through the CPU registers (rdi, rsi, rdx, etc);
we can store a dlopen() argument (path to the payload library) in the rbx register as it's value supposed to be preserved even after calling other functions;
don't forget about a stack (50*1024 bytes of it seems to be OK);
Some notes:
rdi,rsi,rdx, etc);dlopen()argument (path to the payload library) in therbxregister as it's value supposed to be preserved even after calling other functions;50*1024bytes of it seems to be OK);