1
/* Make sure dlopen/dlclose are not marked as leaf functions.
3
Copyright (C) 2013 Free Software Foundation, Inc.
4
This file is part of the GNU C Library.
5
Contributed by Mike Frysinger <vapier@gentoo.org>
7
The GNU C Library is free software; you can redistribute it and/or
8
modify it under the terms of the GNU Lesser General Public
9
License as published by the Free Software Foundation; either
10
version 2.1 of the License, or (at your option) any later version.
12
The GNU C Library is distributed in the hope that it will be useful,
13
but WITHOUT ANY WARRANTY; without even the implied warranty of
14
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15
Lesser General Public License for more details.
17
You should have received a copy of the GNU Lesser General Public
18
License along with the GNU C Library; if not, see
19
<http://www.gnu.org/licenses/>. */
21
/* The bug-dl-leaf.c file will call our lib_main directly. We do this to
22
keep things simple -- no need to use --export-dynamic with the linker
23
or build the main ELF as a PIE.
25
The lib_main func will modify some of its state while dlopening and
26
dlclosing the bug-dl-leaf-lib-cb.so library. The constructors and
27
destructors in that library will call back into this library to also
28
muck with state (the check_val_xxx funcs).
30
If dlclose/dlopen are marked as "leaf" functions, then with newer
31
versions of gcc, the state modification won't work correctly. */
37
static int called = 0;
39
void check_val_init (void)
45
void check_val_fini (void)
56
/* Make sure the constructor sees the updated val. */
58
hdl = dlopen ("bug-dl-leaf-lib-cb.so", RTLD_GLOBAL | RTLD_LAZY);
63
/* Make sure the destructor sees the updated val. */