We’ve still got one function to hand-compile.
This one does system calls.
A system call is just like a function call, except:
- You put the syscall number in %rax
- The argument registers are slightly different after the third arg.
- You do “syscall” instead of “call function”.
https://blog.rchapman.org/posts/Linux_System_Call_Table_for_x86_64/
Overflow #
Show a couple other syscalls.
