libctf/testsuite/libctf-regression/nonstatic-var-section-ld-r.c

   1 #include <ctf-api.h>
   2 #include <stdio.h>
   3 #include <stdlib.h>
   4 #include <string.h>
   5
   6 int
   7 main (int argc, char *argv[])
   8 {
   9   ctf_dict_t *fp;
  10   ctf_archive_t *ctf;
  11   ctf_id_t foo_type, bar_type, sym_type;
  12   int found_foo = 0, found_bar = 0;
  13   ctf_next_t *i = NULL;
  14   const char *name;
  15   int err;
  16
  17   if (argc != 2)
  18     {
  19       fprintf (stderr, "Syntax: %s PROGRAM\n", argv[0]);
  20       exit(1);
  21     }
  22
  23   if ((ctf = ctf_open (argv[1], NULL, &err)) == NULL)
  24     goto open_err;
  25
  26   if ((fp = ctf_dict_open (ctf, NULL, &err)) == NULL)
  27     goto open_err;
  28
  29   /* Make sure we can look up both 'foo' and 'bar' as variables, even though one
  30      of them is nonstatic: in a full link this should be erased, but this is an
  31      ld -r link.  */
  32
  33   if ((foo_type = ctf_lookup_variable (fp, "foo")) == CTF_ERR)
  34     printf ("Cannot look up foo\n", ctf_errmsg (ctf_errno (fp)));
  35   else
  36     printf ("foo is of type %lx\n", foo_type);
  37
  38   if ((bar_type = ctf_lookup_variable (fp, "bar")) == CTF_ERR)
  39     printf ("Cannot look up bar\n", ctf_errmsg (ctf_errno (fp)));
  40   else
  41     printf ("bar is of type %lx\n", bar_type);
  42
  43   /* Traverse the entire data object section and make sure it contains entries
  44      for both foo and bar.  (This is pure laziness: the section is small and
  45      ctf_lookup_by_symbol_name does not yet exist.)  */
  46   while ((sym_type = ctf_symbol_next (fp, &i, &name, 0)) != CTF_ERR)
  47     {
  48       if (!name)
  49         continue;
  50
  51       if (strcmp (name, "foo") == 0)
  52         found_foo = 1;
  53       if (strcmp (name, "bar") == 0)
  54         found_bar = 1;
  55     }
  56   if (ctf_errno (fp) != ECTF_NEXT_END)
  57     fprintf (stderr, "Unexpected error iterating over symbols: %s\n",
  58              ctf_errmsg (ctf_errno (fp)));
  59
  60   if (!found_foo)
  61     printf ("foo missing from the data object section\n");
  62   if (!found_bar)
  63     printf ("bar missing from the data object section\n");
  64
  65   ctf_dict_close (fp);
  66   ctf_close (ctf);
  67
  68   return 0;
  69
  70  open_err:
  71   fprintf (stderr, "%s: cannot open: %s\n", argv[0], ctf_errmsg (err));
  72   return 1;
  73 }