1 /* Copyright (C) 2002,2003,2005,2006,2007,2009 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
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
16 License along with the GNU C Library; if not, see
17 <http://www.gnu.org/licenses/>. */
18
19 #include <unistd.h>
20 #include <list.h>
21 #include <fork.h>
22 #include <dl-sysdep.h>
23 #include <tls.h>
24 #include <string.h>
25 #include <pthreadP.h>
26 #include <bits/libc-lock.h>
27 #include <sysdep.h>
28 #include <ldsodefs.h>
29
30
31 #ifdef TLS_MULTIPLE_THREADS_IN_TCB
32 void
33 #else
34 extern int __libc_multiple_threads attribute_hidden;
35
36 int *
37 #endif
__libc_pthread_init(unsigned long int * ptr,void (* reclaim)(void))38 __libc_pthread_init (
39 unsigned long int *ptr,
40 void (*reclaim) (void))
41 {
42 /* Remember the pointer to the generation counter in libpthread. */
43 #ifdef __ARCH_USE_MMU__
44 __fork_generation_pointer = ptr;
45 #endif
46
47 /* Called by a child after fork. */
48 #ifdef __ARCH_USE_MMU__
49 __register_atfork (NULL, NULL, reclaim, NULL);
50 #endif
51
52 #ifndef TLS_MULTIPLE_THREADS_IN_TCB
53 return &__libc_multiple_threads;
54 #endif
55 }
56