1 /* Copyright (C) 2004-2019 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by David Mosberger <davidm@hpl.hp.com>, 2004.
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.
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.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
28 #define leq(l,r) (((r) - (l)) <= ~0ULL / 2)
31 callback (struct dl_phdr_info
*info
, size_t size
, void *ptr
)
33 static int last_adds
= 0, last_subs
= 0;
34 intptr_t cmd
= (intptr_t) ptr
;
36 printf (" size = %Zu\n", size
);
37 if (size
< (offsetof (struct dl_phdr_info
, dlpi_subs
)
38 + sizeof (info
->dlpi_subs
)))
40 fprintf (stderr
, "dl_iterate_phdr failed to pass dlpi_adds/dlpi_subs\n");
44 printf (" dlpi_adds = %Lu dlpi_subs = %Lu\n",
45 info
->dlpi_adds
, info
->dlpi_subs
);
53 if (leq (info
->dlpi_adds
, last_adds
))
55 fprintf (stderr
, "dlpi_adds failed to get incremented!\n");
61 if (leq (info
->dlpi_subs
, last_subs
))
63 fprintf (stderr
, "dlpi_subs failed to get incremented!\n");
68 last_adds
= info
->dlpi_adds
;
69 last_subs
= info
->dlpi_subs
;
74 load (const char *path
)
78 printf ("loading `%s'\n", path
);
79 handle
= dlopen (path
, RTLD_LAZY
);
82 dl_iterate_phdr (callback
, (void *)(intptr_t) ADD
);
87 unload (const char *path
, void *handle
)
89 printf ("unloading `%s'\n", path
);
90 if (dlclose (handle
) < 0)
92 dl_iterate_phdr (callback
, (void *)(intptr_t) REMOVE
);
98 void *handle1
, *handle2
;
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
);
108 #include <support/test-driver.c>