tf                 93 exec.c           proc->tf->eip = elf.entry;  // main
tf                 94 exec.c           proc->tf->esp = sp;
tf                 60 proc.c           sp -= sizeof *p->tf;
tf                 61 proc.c           p->tf = (struct trapframe*)sp;
tf                 90 proc.c           memset(p->tf, 0, sizeof(*p->tf));
tf                 91 proc.c           p->tf->cs = (SEG_UCODE << 3) | DPL_USER;
tf                 92 proc.c           p->tf->ds = (SEG_UDATA << 3) | DPL_USER;
tf                 93 proc.c           p->tf->es = p->tf->ds;
tf                 94 proc.c           p->tf->ss = p->tf->ds;
tf                 95 proc.c           p->tf->eflags = FL_IF;
tf                 96 proc.c           p->tf->esp = PGSIZE;
tf                 97 proc.c           p->tf->eip = 0;  // beginning of initcode.S
tf                147 proc.c           *np->tf = *proc->tf;
tf                150 proc.c           np->tf->eax = 0;
tf                 62 proc.h           struct trapframe *tf;        // Trap frame for current syscall
tf                 48 syscall.c        return fetchint(proc->tf->esp + 4 + 4*n, ip);
tf                131 syscall.c        num = proc->tf->eax;
tf                133 syscall.c          proc->tf->eax = syscalls[num]();
tf                137 syscall.c          proc->tf->eax = -1;
tf                 37 trap.c         trap(struct trapframe *tf)
tf                 39 trap.c           if(tf->trapno == T_SYSCALL){
tf                 42 trap.c             proc->tf = tf;
tf                 49 trap.c           switch(tf->trapno){
tf                 77 trap.c                     cpu->id, tf->cs, tf->eip);
tf                 83 trap.c             if(proc == 0 || (tf->cs&3) == 0){
tf                 86 trap.c                       tf->trapno, cpu->id, tf->eip, rcr2());
tf                 92 trap.c                     proc->pid, proc->name, tf->trapno, tf->err, cpu->id, tf->eip, 
tf                100 trap.c           if(proc && proc->killed && (tf->cs&3) == DPL_USER)
tf                105 trap.c           if(proc && proc->state == RUNNING && tf->trapno == T_IRQ0+IRQ_TIMER)
tf                109 trap.c           if(proc && proc->killed && (tf->cs&3) == DPL_USER)