Update.
[glibc.git] / elf / neededtest.c
blobe6e99bfc6db5ae92b58b4f27e08d4222d5af666a
1 #include <dlfcn.h>
2 #include <libintl.h>
3 #include <link.h>
4 #include <stdio.h>
5 #include <stdlib.h>
6 #include <string.h>
8 static int
9 check_loaded_objects (const char **loaded)
11 struct link_map *lm;
12 int n;
13 int *found = NULL;
14 int errors = 0;
16 for (n = 0; loaded[n]; n++)
17 /* NOTHING */;
19 if (n)
21 found = (int *) alloca (sizeof (int) * n);
22 memset (found, 0, sizeof (int) * n);
25 printf(" Name\n");
26 printf(" --------------------------------------------------------\n");
27 for (lm = _r_debug.r_map; lm; lm = lm->l_next)
29 if (lm->l_name && lm->l_name[0])
30 printf(" %s, count = %d\n", lm->l_name, (int) lm->l_opencount);
31 if (lm->l_type == lt_loaded && lm->l_name)
33 int match = 0;
34 for (n = 0; loaded[n] != NULL; n++)
36 if (strcmp (basename (loaded[n]), basename (lm->l_name)) == 0)
38 found[n] = 1;
39 match = 1;
40 break;
44 if (match == 0)
46 ++errors;
47 printf ("ERRORS: %s is not unloaded\n", lm->l_name);
52 for (n = 0; loaded[n] != NULL; n++)
54 if (found[n] == 0)
56 ++errors;
57 printf ("ERRORS: %s is not loaded\n", loaded[n]);
61 return errors;
64 int
65 main (void)
67 void *obj2[2];
68 void *obj3;
69 const char *loaded[] = { NULL, NULL, NULL, NULL };
70 int errors = 0;
72 printf ("\nThis is what is in memory now:\n");
73 errors += check_loaded_objects (loaded);
75 printf( "Loading shared object neededobj3.so\n");
76 obj3 = dlopen( "neededobj3.so", RTLD_LAZY);
77 if (obj3 == NULL)
79 printf ("%s\n", dlerror ());
80 exit (1);
82 loaded[0] = "neededobj1.so";
83 loaded[1] = "neededobj2.so";
84 loaded[2] = "neededobj3.so";
85 errors += check_loaded_objects (loaded);
87 printf ("Now loading shared object neededobj2.so\n");
88 obj2[0] = dlopen ("neededobj2.so", RTLD_LAZY);
89 if (obj2[0] == NULL)
91 printf ("%s\n", dlerror ());
92 exit (1);
94 errors += check_loaded_objects (loaded);
96 printf ("And loading shared object neededobj2.so again\n");
97 obj2[1] = dlopen ("neededobj2.so", RTLD_LAZY);
98 if (obj2[1] == NULL)
100 printf ("%s\n", dlerror ());
101 exit (1);
103 errors += check_loaded_objects (loaded);
105 printf ("Closing neededobj2.so for the first time\n");
106 dlclose (obj2[0]);
107 errors += check_loaded_objects (loaded);
109 printf ("Closing neededobj3.so\n");
110 dlclose (obj3);
111 loaded[2] = NULL;
112 errors += check_loaded_objects (loaded);
114 printf ("Closing neededobj2.so for the second time\n");
115 dlclose (obj2[1]);
116 loaded[0] = NULL;
117 loaded[1] = NULL;
118 errors += check_loaded_objects (loaded);
120 if (errors != 0)
121 printf ("%d errors found\n", errors);
122 return errors;