#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/shm.h>
#include <ctype.h>
#include <string.h>
#include <stdlib.h>
#include <errno.h>
#include <bfd.h>

int main(int argc, char **argv)
{
   long            storage_needed;
   long            number_of_symbols;
   long            i;
   symbol_info     syminfo;
   bfd            *ibfd;
   asymbol       **symbol_table;

   if (argc != 2)
   {
      printf("Usage: %s kernel-image\n", argv[0]);
      exit(1);
   }
   if ((ibfd = (bfd_openr(argv[1], NULL))) == NULL)
   {
      perror("bfd_openr");
      exit(1);
   }
   if (!bfd_check_format(ibfd, bfd_object))
   {
      perror("bfd_check_format");
      exit(1);
   }
   if ((storage_needed = bfd_get_symtab_upper_bound(ibfd)) < 1)
   {
      if (storage_needed < 0)
         perror("bfd_get_symtab_upper_bound");
      else
         perror("no symbols");
      exit(1);
   }
   if ((symbol_table = (asymbol **)xmalloc(storage_needed)) == NULL)
   {
      perror("xmalloc");
      exit(1);
   }
   if ((number_of_symbols = bfd_canonicalize_symtab(ibfd, symbol_table)) < 0)
   {
      perror("bfd_canonicalize_symtab");
      exit(1);
   }
   for (i = 0; i < number_of_symbols; i++)
   {
      bfd_get_symbol_info(ibfd, symbol_table[i], &syminfo);
      if (syminfo.name)
         printf("%s\n", syminfo.name);
   }
}