1 /* This testcase is part of GDB, the GNU debugger.
2
3 Copyright 2009-2013 Free Software Foundation, Inc.
4
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 3 of the License, or
8 (at your option) any later version.
9
10 This program 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
13 GNU General Public License for more details.
14
15 You should have received a copy of the GNU General Public License
16 along with this program. If not, see <http://www.gnu.org/licenses/>. */
17
18 #include <assert.h>
19
20 int
init_stub(int arg)21 init_stub (int arg)
22 {
23 return 0;
24 }
25
26 int
final(int arg)27 final (int arg)
28 {
29 return arg + 1;
30 }
31
32 /* Make differentiation of how the gnu_ifunc call resolves before and after
33 calling gnu_ifunc_pre. This ensures the resolved function address is not
34 being cached anywhere for the debugging purposes. */
35
36 volatile int gnu_ifunc_initialized;
37
38 static void
gnu_ifunc_pre(void)39 gnu_ifunc_pre (void)
40 {
41 assert (!gnu_ifunc_initialized);
42
43 gnu_ifunc_initialized = 1;
44 }
45
46 extern int gnu_ifunc (int arg);
47
48 int
main(void)49 main (void)
50 {
51 int i;
52
53 gnu_ifunc_pre ();
54
55 i = gnu_ifunc (1); /* break-at-call */
56 assert (i == 2);
57
58 gnu_ifunc (2); /* break-at-nextcall */
59
60 return 0; /* break-at-exit */
61 }
62