pcb_ksp
pcb->pcb_ksp = uvm_lwp_getuarea(l) + USPACE_SVC_STACK_TOP;
pcb->pcb_ksp -= sizeof(struct trapframe);
struct trapframe * tf = (struct trapframe *)pcb->pcb_ksp;
return pcb->pcb_ksp;
pcb->pcb_ksp = uvm_lwp_getuarea(l) + USPACE_SVC_STACK_TOP;
pcb->pcb_ksp -= sizeof(struct trapframe);
struct trapframe * tf = (struct trapframe *)pcb->pcb_ksp;
if (tf != ((trapframe_t *)pcb->pcb_ksp) - 1) {
pcb2->pcb_ksp = uv + USPACE_SVC_STACK_TOP;
struct trapframe *tf = (struct trapframe *)pcb2->pcb_ksp - 1;
pcb2->pcb_ksp = (u_int)sf;
db_read_bytes((db_addr_t)&pcb->pcb_ksp,
pcb2->pcb_ksp = sp;
u_int pcb_ksp; /* kernel sp for ctxsw */