source/syscall.s

   1 .intel_syntax noprefix
   2 .text
   3
   4 .global syscall
   5 syscall:
   6         push    r15
   7         mov     r15, 0x9263FFFF8
   8         mov     r15, [r15]
   9         xor     rax, rax
  10         call    r15
  11         pop             r15
  12         ret