1 | /* Basic platform-independent macro definitions for mutexes, |
2 | thread-specific data and parameters for malloc. |
3 | Copyright (C) 2003-2016 Free Software Foundation, Inc. |
4 | This file is part of the GNU C Library. |
5 | |
6 | The GNU C Library is free software; you can redistribute it and/or |
7 | modify it under the terms of the GNU Lesser General Public |
8 | License as published by the Free Software Foundation; either |
9 | version 2.1 of the License, or (at your option) any later version. |
10 | |
11 | The GNU C Library is distributed in the hope that it will be useful, |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
14 | Lesser General Public License for more details. |
15 | |
16 | You should have received a copy of the GNU Lesser General Public |
17 | License along with the GNU C Library; if not, see |
18 | <http://www.gnu.org/licenses/>. */ |
19 | |
20 | #ifndef _MALLOC_MACHINE_H |
21 | #define _MALLOC_MACHINE_H |
22 | |
23 | #undef thread_atfork_static |
24 | |
25 | #include <atomic.h> |
26 | #include <libc-lock.h> |
27 | |
28 | __libc_lock_define (typedef, mutex_t) |
29 | |
30 | #define mutex_init(m) __libc_lock_init (*(m)) |
31 | #define mutex_lock(m) __libc_lock_lock (*(m)) |
32 | #define mutex_trylock(m) __libc_lock_trylock (*(m)) |
33 | #define mutex_unlock(m) __libc_lock_unlock (*(m)) |
34 | |
35 | /* This is defined by newer gcc version unique for each module. */ |
36 | extern void *__dso_handle __attribute__ ((__weak__)); |
37 | |
38 | #include <fork.h> |
39 | |
40 | #define ATFORK_MEM static struct fork_handler atfork_mem |
41 | |
42 | #ifdef SHARED |
43 | # define thread_atfork(prepare, parent, child) \ |
44 | atfork_mem.prepare_handler = prepare; \ |
45 | atfork_mem.parent_handler = parent; \ |
46 | atfork_mem.child_handler = child; \ |
47 | atfork_mem.dso_handle = __dso_handle; \ |
48 | atfork_mem.refcntr = 1; \ |
49 | __linkin_atfork (&atfork_mem) |
50 | #else |
51 | # define thread_atfork(prepare, parent, child) \ |
52 | atfork_mem.prepare_handler = prepare; \ |
53 | atfork_mem.parent_handler = parent; \ |
54 | atfork_mem.child_handler = child; \ |
55 | atfork_mem.dso_handle = &__dso_handle == NULL ? NULL : __dso_handle; \ |
56 | atfork_mem.refcntr = 1; \ |
57 | __linkin_atfork (&atfork_mem) |
58 | #endif |
59 | |
60 | #include <sysdeps/generic/malloc-machine.h> |
61 | |
62 | #endif /* !defined(_MALLOC_MACHINE_H) */ |
63 | |