PTRACE_SCX
if ((p->p_ptevents & PTRACE_SCX) != 0 ||
(p->p_ptevents & PTRACE_SCX) != 0)) {
if ((tmp & ~(PTRACE_EXEC | PTRACE_SCE | PTRACE_SCX |
p->p_ptevents |= PTRACE_SCX;
#define PTRACE_SYSCALL (PTRACE_SCE | PTRACE_SCX)