1. 根目录:
2. arch
3. cris
4. arch-v10
5. kernel
6. crisksyms.c

#include <linux/module.h>
#include <asm/io.h>
#include <arch/svinto.h>

/* Export shadow registers for the CPU I/O pins */
EXPORT_SYMBOL(genconfig_shadow);
EXPORT_SYMBOL(port_pa_data_shadow);
EXPORT_SYMBOL(port_pa_dir_shadow);
EXPORT_SYMBOL(port_pb_data_shadow);
EXPORT_SYMBOL(port_pb_dir_shadow);
EXPORT_SYMBOL(port_pb_config_shadow);
EXPORT_SYMBOL(port_g_data_shadow);

/* Cache flush functions */
EXPORT_SYMBOL(flush_etrax_cache);
EXPORT_SYMBOL(prepare_rx_descriptor);