Symbol: PT_IO
regress/sys/kern/ptrace/ptrace.c
133
if (ptrace(PT_IO, pid, (caddr_t)&piod, 0) == -1) {
sys/kern/sys_process.c
140
case PT_IO:
sys/kern/sys_process.c
284
if (req == PT_IO) {
sys/kern/sys_process.c
696
case PT_IO: