void arch_prepare_kretprobe(struct kretprobe *rp, struct pt_regs *regs) 
void __kprobes arch_prepare_kretprobe(struct kretprobe *rp, struct pt_regs *regs) 
void arch_prepare_kretprobe(struct kretprobe *rp, struct pt_regs *regs){	unsigned long *sara = (unsigned long *)&regs->esp;        struct kretprobe_instance *ri;        if ((ri = get_free_rp_inst(rp)) != NULL) {                ri->rp = rp;                ri->task = current;		ri->ret_addr = (kprobe_opcode_t *) *sara;		/* Replace the return addr with trampoline addr */		*sara = (unsigned long) &kretprobe_trampoline;                add_rp_inst(ri);        } else {                rp->nmissed++;        }}
4520	/local/tlutelli/issta_data/temp/c/2005_temp/2005/4520/3d97ae5b958855ac007b6f56a0f94ab8ade09e9e/kprobes.c/clean/arch/i386/kernel/kprobes.c