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8edd9172 UD |
1 | #include <dlfcn.h> |
2 | #include <libintl.h> | |
3 | #include <link.h> | |
4 | #include <stdio.h> | |
5 | #include <stdlib.h> | |
6 | #include <string.h> | |
7 | ||
d78efd9f RM |
8 | #define MAPS ((struct link_map *) _r_debug.r_map) |
9 | ||
8edd9172 UD |
10 | static int |
11 | check_loaded_objects (const char **loaded) | |
12 | { | |
13 | struct link_map *lm; | |
14 | int n; | |
15 | int *found = NULL; | |
16 | int errors = 0; | |
17 | ||
18 | for (n = 0; loaded[n]; n++) | |
19 | /* NOTHING */; | |
20 | ||
21 | if (n) | |
22 | { | |
23 | found = (int *) alloca (sizeof (int) * n); | |
24 | memset (found, 0, sizeof (int) * n); | |
25 | } | |
26 | ||
27 | printf(" Name\n"); | |
28 | printf(" --------------------------------------------------------\n"); | |
d78efd9f | 29 | for (lm = MAPS; lm; lm = lm->l_next) |
8edd9172 UD |
30 | { |
31 | if (lm->l_name && lm->l_name[0]) | |
20fe49b9 | 32 | printf(" %s, count = %d\n", lm->l_name, (int) lm->l_direct_opencount); |
8edd9172 UD |
33 | if (lm->l_type == lt_loaded && lm->l_name) |
34 | { | |
35 | int match = 0; | |
36 | for (n = 0; loaded[n] != NULL; n++) | |
37 | { | |
38 | if (strcmp (basename (loaded[n]), basename (lm->l_name)) == 0) | |
39 | { | |
40 | found[n] = 1; | |
41 | match = 1; | |
42 | break; | |
43 | } | |
44 | } | |
45 | ||
46 | if (match == 0) | |
47 | { | |
48 | ++errors; | |
49 | printf ("ERRORS: %s is not unloaded\n", lm->l_name); | |
50 | } | |
51 | } | |
52 | } | |
53 | ||
54 | for (n = 0; loaded[n] != NULL; n++) | |
55 | { | |
56 | if (found[n] == 0) | |
57 | { | |
58 | ++errors; | |
59 | printf ("ERRORS: %s is not loaded\n", loaded[n]); | |
60 | } | |
61 | } | |
62 | ||
63 | return errors; | |
64 | } | |
65 | ||
66 | int | |
67 | main (void) | |
68 | { | |
69 | void *obj2; | |
70 | void *obj3; | |
71 | void *obj4; | |
72 | const char *loaded[] = { NULL, NULL, NULL, NULL, NULL }; | |
73 | int errors = 0; | |
74 | ||
75 | printf ("\nThis is what is in memory now:\n"); | |
76 | errors += check_loaded_objects (loaded); | |
77 | ||
78 | printf ("Now loading shared object neededobj2.so\n"); | |
79 | obj2 = dlopen ("neededobj2.so", RTLD_LAZY); | |
80 | if (obj2 == NULL) | |
81 | { | |
82 | printf ("%s\n", dlerror ()); | |
83 | exit (1); | |
84 | } | |
85 | loaded[0] = "neededobj1.so"; | |
86 | loaded[1] = "neededobj2.so"; | |
87 | errors += check_loaded_objects (loaded); | |
88 | ||
89 | printf( "Loading shared object neededobj3.so\n"); | |
90 | obj3 = dlopen( "neededobj3.so", RTLD_LAZY); | |
91 | if (obj3 == NULL) | |
92 | { | |
93 | printf ("%s\n", dlerror ()); | |
94 | exit (1); | |
95 | } | |
96 | loaded[2] = "neededobj3.so"; | |
97 | errors += check_loaded_objects (loaded); | |
98 | ||
99 | ||
100 | printf( "Loading shared object neededobj4.so\n"); | |
101 | obj4 = dlopen( "neededobj4.so", RTLD_LAZY); | |
102 | if (obj4 == NULL) | |
103 | { | |
104 | printf ("%s\n", dlerror ()); | |
105 | exit (1); | |
106 | } | |
107 | loaded[3] = "neededobj4.so"; | |
108 | errors += check_loaded_objects (loaded); | |
109 | ||
110 | printf ("Closing neededobj2.so\n"); | |
111 | dlclose (obj2); | |
112 | errors += check_loaded_objects (loaded); | |
113 | ||
114 | printf ("Closing neededobj3.so\n"); | |
115 | dlclose (obj3); | |
116 | errors += check_loaded_objects (loaded); | |
117 | ||
118 | printf ("Closing neededobj4.so\n"); | |
119 | dlclose (obj4); | |
120 | loaded[0] = NULL; | |
121 | loaded[1] = NULL; | |
122 | loaded[2] = NULL; | |
123 | loaded[3] = NULL; | |
124 | errors += check_loaded_objects (loaded); | |
125 | ||
126 | if (errors != 0) | |
127 | printf ("%d errors found\n", errors); | |
128 | return errors; | |
129 | } |