1 #include <ctf-api.h>
2 #include <stdio.h>
3 #include <stdlib.h>
4 #include <string.h>
5
6 int
main(int argc,char * argv[])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: %s\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: %s\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 }
74