x86_64 assembly execve *char[] syscall

Question

I am trying to get into a bit of Linux 64bit x86 assembly without using the standard libs, however I am having some issues dealing with arguments presented to my program (ar

Answer 1

At rsp+8 you'll find the address of a string with the program path. The pointer to the first argument is at [rsp+16]. But for execve you need a pointer to an array of pointer to strings which begins with a pointer to a program path (you can (ab)use [rsp+8]).

So change

mov rsi, [rsp + 8]

to

lea rsi, [rsp + 8]