tf                100 exec.c           curproc->tf->eip = elf.entry;  // main
tf                101 exec.c           curproc->tf->esp = sp;
tf                102 proc.c           sp -= sizeof *p->tf;
tf                103 proc.c           p->tf = (struct trapframe*)sp;
tf                133 proc.c           memset(p->tf, 0, sizeof(*p->tf));
tf                134 proc.c           p->tf->cs = (SEG_UCODE << 3) | DPL_USER;
tf                135 proc.c           p->tf->ds = (SEG_UDATA << 3) | DPL_USER;
tf                136 proc.c           p->tf->es = p->tf->ds;
tf                137 proc.c           p->tf->ss = p->tf->ds;
tf                138 proc.c           p->tf->eflags = FL_IF;
tf                139 proc.c           p->tf->esp = PGSIZE;
tf                140 proc.c           p->tf->eip = 0;  // beginning of initcode.S
tf                201 proc.c           *np->tf = *curproc->tf;
tf                204 proc.c           np->tf->eax = 0;
tf                 45 proc.h           struct trapframe *tf;        // Trap frame for current syscall
tf                 52 syscall.c        return fetchint((myproc()->tf->esp) + 4 + 4*n, ip);
tf                137 syscall.c        num = curproc->tf->eax;
tf                139 syscall.c          curproc->tf->eax = syscalls[num]();
tf                143 syscall.c          curproc->tf->eax = -1;
tf                 37 trap.c         trap(struct trapframe *tf)
tf                 39 trap.c           if(tf->trapno == T_SYSCALL){
tf                 42 trap.c             myproc()->tf = tf;
tf                 49 trap.c           switch(tf->trapno){
tf                 77 trap.c                     cpuid(), tf->cs, tf->eip);
tf                 83 trap.c             if(myproc() == 0 || (tf->cs&3) == 0){
tf                 86 trap.c                       tf->trapno, cpuid(), tf->eip, rcr2());
tf                 92 trap.c                     myproc()->pid, myproc()->name, tf->trapno,
tf                 93 trap.c                     tf->err, cpuid(), tf->eip, rcr2());
tf                100 trap.c           if(myproc() && myproc()->killed && (tf->cs&3) == DPL_USER)
tf                106 trap.c              tf->trapno == T_IRQ0+IRQ_TIMER)
tf                110 trap.c           if(myproc() && myproc()->killed && (tf->cs&3) == DPL_USER)