change labels from global to local in functions, align function calls in stack

srcs/ft_strcpy.s

@@ -3,25 +3,25 @@ section .text
 
 ft_strcpy:
 	test rdi, rdi
-	jz err
+	jz .err
 	test rsi, rsi
-	jz err
+	jz .err
 	push rdi
 
 
-loop_start:
+.loop_start:
 	mov al, [rsi]
 	mov [rdi],al 
 	lea rdi, [rdi + 1]
 	lea rsi, [rsi + 1]
 
 	test al, al
-	jne loop_start
+	jne .loop_start
 	
-end:
+.end:
 	pop rax
 	ret
 
-err:
+.err:
 	xor rax, rax
 	ret