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Commit | Line | Data |
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2f083d75 L |
1 | /* Test STT_GNU_IFUNC symbols with dlopen: |
2 | ||
3 | 1. Direct function call. | |
4 | 2. Function pointer. | |
5 | 3. Visibility with override. | |
6 | */ | |
7 | ||
8 | #include <dlfcn.h> | |
9 | #include <stdlib.h> | |
10 | #include <stdio.h> | |
11 | ||
12 | typedef int (*foo_p) (void); | |
13 | ||
14 | int | |
15 | __attribute__ ((noinline)) | |
16 | foo (void) | |
17 | { | |
18 | return -30; | |
19 | } | |
20 | ||
21 | int | |
22 | __attribute__ ((noinline)) | |
23 | foo_hidden (void) | |
24 | { | |
25 | return -20; | |
26 | } | |
27 | ||
28 | int | |
29 | __attribute__ ((noinline)) | |
30 | foo_protected (void) | |
31 | { | |
32 | return -40; | |
33 | } | |
34 | ||
35 | int | |
36 | main (void) | |
37 | { | |
38 | foo_p p; | |
39 | foo_p (*f) (void); | |
40 | int *ret; | |
41 | ||
42 | void *h = dlopen ("ifuncmod3.so", RTLD_LAZY); | |
43 | if (h == NULL) | |
44 | { | |
45 | printf ("cannot load: %s\n", dlerror ()); | |
46 | return 1; | |
47 | } | |
48 | ||
8608ae1f L |
49 | p = dlsym (h, "foo"); |
50 | if (p == NULL) | |
51 | { | |
52 | printf ("symbol not found: %s\n", dlerror ()); | |
53 | return 1; | |
54 | } | |
55 | if ((*p) () != -1) | |
56 | abort (); | |
57 | ||
2f083d75 L |
58 | f = dlsym (h, "get_foo_p"); |
59 | if (f == NULL) | |
60 | { | |
61 | printf ("symbol not found: %s\n", dlerror ()); | |
62 | return 1; | |
63 | } | |
64 | ||
65 | ret = dlsym (h, "ret_foo"); | |
66 | if (ret == NULL) | |
67 | { | |
68 | printf ("symbol not found: %s\n", dlerror ()); | |
69 | return 1; | |
70 | } | |
71 | ||
72 | p = (*f) (); | |
73 | if (p != foo) | |
74 | abort (); | |
75 | if (foo () != -30) | |
76 | abort (); | |
77 | if (*ret != -30 || (*p) () != *ret) | |
78 | abort (); | |
79 | ||
80 | f = dlsym (h, "get_foo_hidden_p"); | |
81 | if (f == NULL) | |
82 | { | |
83 | printf ("symbol not found: %s\n", dlerror ()); | |
84 | return 1; | |
85 | } | |
86 | ||
87 | ret = dlsym (h, "ret_foo_hidden"); | |
88 | if (ret == NULL) | |
89 | { | |
90 | printf ("symbol not found: %s\n", dlerror ()); | |
91 | return 1; | |
92 | } | |
93 | ||
94 | p = (*f) (); | |
95 | if (foo_hidden () != -20) | |
96 | abort (); | |
97 | if (*ret != 1 || (*p) () != *ret) | |
98 | abort (); | |
99 | ||
100 | f = dlsym (h, "get_foo_protected_p"); | |
101 | if (f == NULL) | |
102 | { | |
103 | printf ("symbol not found: %s\n", dlerror ()); | |
104 | return 1; | |
105 | } | |
106 | ||
107 | ret = dlsym (h, "ret_foo_protected"); | |
108 | if (ret == NULL) | |
109 | { | |
110 | printf ("symbol not found: %s\n", dlerror ()); | |
111 | return 1; | |
112 | } | |
113 | ||
114 | p = (*f) (); | |
115 | if (p == foo_protected) | |
116 | abort (); | |
117 | if (foo_protected () != -40) | |
118 | abort (); | |
119 | if (*ret != 0 || (*p) () != *ret) | |
120 | abort (); | |
121 | ||
122 | if (dlclose (h) != 0) | |
123 | { | |
124 | printf ("cannot close: %s\n", dlerror ()); | |
125 | return 1; | |
126 | } | |
127 | ||
128 | return 0; | |
129 | } |