/*
   * linux/arch/frv/mm/extable.c
   */

  #include <linux/module.h>
  #include <linux/spinlock.h>
  #include <asm/uaccess.h>

  extern const void __memset_end, __memset_user_error_lr, __memset_user_error_handler;
  extern const void __memcpy_end, __memcpy_user_error_lr, __memcpy_user_error_handler;
  extern spinlock_t modlist_lock;

  
  /*****************************************************************************/
  /*
   * see if there's a fixup handler available to deal with a kernel fault
   */
  unsigned long search_exception_table(unsigned long pc)
  {

  	const struct exception_table_entry *extab;

  
  	/* determine if the fault lay during a memcpy_user or a memset_user */
  	if (__frame->lr == (unsigned long) &__memset_user_error_lr &&
  	    (unsigned long) &memset <= pc && pc < (unsigned long) &__memset_end
  	    ) {
  		/* the fault occurred in a protected memset
  		 * - we search for the return address (in LR) instead of the program counter
  		 * - it was probably during a clear_user()
  		 */
  		return (unsigned long) &__memset_user_error_handler;
  	}

  
  	if (__frame->lr == (unsigned long) &__memcpy_user_error_lr &&
  	    (unsigned long) &memcpy <= pc && pc < (unsigned long) &__memcpy_end
  	    ) {

  		/* the fault occurred in a protected memset
  		 * - we search for the return address (in LR) instead of the program counter
  		 * - it was probably during a copy_to/from_user()
  		 */
  		return (unsigned long) &__memcpy_user_error_handler;
  	}

  	extab = search_exception_tables(pc);
  	if (extab)
  		return extab->fixup;

  	return 0;

  } /* end search_exception_table() */