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04277e02 | 1 | /* Copyright (C) 2004-2019 Free Software Foundation, Inc. |
bed12f78 UD |
2 | This file is part of the GNU C Library. |
3 | Contributed by David Mosberger <davidm@hpl.hp.com>, 2004. | |
4 | ||
5 | The GNU C Library is free software; you can redistribute it and/or | |
6 | modify it under the terms of the GNU Lesser General Public | |
7 | License as published by the Free Software Foundation; either | |
8 | version 2.1 of the License, or (at your option) any later version. | |
9 | ||
10 | The GNU C Library is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | Lesser General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU Lesser General Public | |
59ba27a6 | 16 | License along with the GNU C Library; if not, see |
5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
bed12f78 UD |
18 | |
19 | #include <link.h> | |
fde9eb68 | 20 | #include <stddef.h> |
bed12f78 | 21 | #include <stdio.h> |
fde9eb68 | 22 | #include <stdlib.h> |
bed12f78 UD |
23 | |
24 | #define SET 0 | |
25 | #define ADD 1 | |
26 | #define REMOVE 2 | |
27 | ||
28 | #define leq(l,r) (((r) - (l)) <= ~0ULL / 2) | |
29 | ||
30 | static int | |
31 | callback (struct dl_phdr_info *info, size_t size, void *ptr) | |
32 | { | |
33 | static int last_adds = 0, last_subs = 0; | |
34 | intptr_t cmd = (intptr_t) ptr; | |
35 | ||
36 | printf (" size = %Zu\n", size); | |
37 | if (size < (offsetof (struct dl_phdr_info, dlpi_subs) | |
38 | + sizeof (info->dlpi_subs))) | |
39 | { | |
40 | fprintf (stderr, "dl_iterate_phdr failed to pass dlpi_adds/dlpi_subs\n"); | |
41 | exit (5); | |
42 | } | |
43 | ||
44 | printf (" dlpi_adds = %Lu dlpi_subs = %Lu\n", | |
45 | info->dlpi_adds, info->dlpi_subs); | |
46 | ||
47 | switch (cmd) | |
48 | { | |
49 | case SET: | |
50 | break; | |
51 | ||
52 | case ADD: | |
53 | if (leq (info->dlpi_adds, last_adds)) | |
54 | { | |
55 | fprintf (stderr, "dlpi_adds failed to get incremented!\n"); | |
56 | exit (3); | |
57 | } | |
58 | break; | |
59 | ||
60 | case REMOVE: | |
61 | if (leq (info->dlpi_subs, last_subs)) | |
62 | { | |
63 | fprintf (stderr, "dlpi_subs failed to get incremented!\n"); | |
64 | exit (4); | |
65 | } | |
66 | break; | |
67 | } | |
68 | last_adds = info->dlpi_adds; | |
69 | last_subs = info->dlpi_subs; | |
70 | return -1; | |
71 | } | |
72 | ||
73 | static void * | |
74 | load (const char *path) | |
75 | { | |
76 | void *handle; | |
77 | ||
78 | printf ("loading `%s'\n", path); | |
79 | handle = dlopen (path, RTLD_LAZY); | |
80 | if (!handle) | |
81 | exit (1); | |
82 | dl_iterate_phdr (callback, (void *)(intptr_t) ADD); | |
83 | return handle; | |
84 | } | |
85 | ||
86 | static void | |
87 | unload (const char *path, void *handle) | |
88 | { | |
bed12f78 UD |
89 | printf ("unloading `%s'\n", path); |
90 | if (dlclose (handle) < 0) | |
91 | exit (2); | |
92 | dl_iterate_phdr (callback, (void *)(intptr_t) REMOVE); | |
93 | } | |
94 | ||
c1f41083 AS |
95 | static int |
96 | do_test (void) | |
bed12f78 UD |
97 | { |
98 | void *handle1, *handle2; | |
99 | ||
100 | dl_iterate_phdr (callback, (void *)(intptr_t) SET); | |
101 | handle1 = load ("firstobj.so"); | |
102 | handle2 = load ("globalmod1.so"); | |
103 | unload ("firstobj.so", handle1); | |
104 | unload ("globalmod1.so", handle2); | |
105 | return 0; | |
106 | } | |
c1f41083 | 107 | |
36fe25fd | 108 | #include <support/test-driver.c> |