ISSIG_PENDING
if (ISSIG_PENDING(t, lwp, p)) {
if (ISSIG_PENDING(t, lwp, p)) {
if (ISSIG_PENDING(t, lwp, p)) {
(ISSIG_PENDING(t, lwp, p) && issig(why))
if (ISSIG_PENDING(ct, lwp, p)) {
if (ISSIG_PENDING(t, lwp, p)) {
if (ISSIG_PENDING(t, lwp, p)) {
if (ISSIG_PENDING(curthread, lwp, p)) {