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[glibc/history.git] / dlfcn / glrefmain.c
blobe113ef662d8469abd21aded5412a909713ba3cc4
1 /* Test for dependency tracking added by relocations.
2 Copyright (C) 2000 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
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, write to the Free
17 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
18 02111-1307 USA. */
20 #include <dlfcn.h>
21 #include <error.h>
22 #include <errno.h>
23 #include <stdio.h>
24 #include <stdlib.h>
27 static void *
28 load (const char *name)
30 void *d = dlopen (name, RTLD_LAZY | RTLD_GLOBAL);
31 if (d == NULL)
32 error (EXIT_FAILURE, errno, "cannot load `%s'", name);
33 return d;
37 #define TEST_FUNCTION do_test ()
38 extern int do_test (void);
40 int
41 do_test (void)
43 void *d1;
44 void *d2;
45 int (*f) (void);
47 d1 = load ("glreflib1.so");
48 d2 = load ("glreflib2.so");
50 f = dlsym (d2, "ref2");
51 if (f == NULL)
52 error (EXIT_FAILURE, errno, "cannot get pointer to `%s'", "ref2");
54 if (f () != 42)
55 error (EXIT_FAILURE, 0, "wrong result from `%s'", "ref2");
57 puts ("Correct result in first call");
58 fflush (stdout);
60 /* Now unload the first file. */
61 dlclose (d1);
63 puts ("About to call the second time");
64 fflush (stdout);
66 /* Try calling the function again. */
67 if (f () != 42)
68 error (EXIT_FAILURE, 0, "wrong result from `%s' (second call)", "ref2");
70 puts ("Second call succeeded!");
71 fflush (stdout);
73 dlclose (d2);
75 puts ("glreflib2 also closed");
76 fflush (stdout);
78 return 0;
81 #include "../test-skeleton.c"