P_PR_EXEC
{ "P_PR_EXEC", P_PR_EXEC, P_PR_EXEC },
p->p_proc_flag |= P_PR_EXEC;
p->p_proc_flag &= ~P_PR_EXEC;
if (p->p_proc_flag & P_PR_EXEC) {
uint16_t lockflg = (ttoproc(t)->p_proc_flag & P_PR_EXEC)?