UNIX 6th Ed. - /usr/source/s5/ptrace.s

   1: / ptrace -- C library
   2: 
   3: /	result = ptrace(req, pid, addr, data);
   4: 
   5: ptrace = 26.
   6: indir = 0
   7: 
   8: .globl  _ptrace
   9: .globl  cerror, _errno
  10: 
  11: _ptrace:
  12:         mov     r5,-(sp)
  13:         mov     sp,r5
  14:         mov     4.(r5),0f+4
  15:         mov     6.(r5),0f+0
  16:         mov     8.(r5),0f+2
  17:         mov     10.(r5),r0
  18:         clr     _errno
  19:         sys     indir; 9f
  20:         bec     1f
  21:         jmp     cerror
  22: 1:
  23:         mov     (sp)+,r5
  24:         rts     pc
  25: 
  26: .data
  27: 9:
  28:         sys     ptrace; 0: .=.+6

Defined functions