1 /* Basic platform-independent macro definitions for mutexes,
2 thread-specific data and parameters for malloc.
3 Copyright (C) 2003-2015 Free Software Foundation, Inc.
4 This file is part of the GNU C Library.
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.
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.
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/>. */
20 #ifndef _MALLOC_MACHINE_H
21 #define _MALLOC_MACHINE_H
23 #undef thread_atfork_static
26 #include <bits/libc-lock.h>
28 /* Assume hurd, with cthreads */
30 /* Cthreads `mutex_t' is a pointer to a mutex, and malloc wants just the
33 #define mutex_t struct mutex
36 #define mutex_init(m) ({ __mutex_init(m); 0; })
39 #define mutex_lock(m) ({ __mutex_lock(m); 0; })
42 #define mutex_unlock(m) ({ __mutex_unlock(m); 0; })
44 #define mutex_trylock(m) (!__mutex_trylock(m))
46 #define thread_atfork(prepare, parent, child) do {} while(0)
47 #define thread_atfork_static(prepare, parent, child) \
48 text_set_element(_hurd_fork_prepare_hook, prepare); \
49 text_set_element(_hurd_fork_parent_hook, parent); \
50 text_set_element(_hurd_fork_child_hook, child);
52 /* No we're *not* using pthreads. */
53 #define __pthread_initialize ((void (*)(void))0)
55 /* thread specific data for glibc */
57 #include <bits/libc-tsd.h>
59 typedef int tsd_key_t
[1]; /* no key data structure, libc magic does it */
60 __libc_tsd_define (static, void *, MALLOC
) /* declaration/common definition */
61 #define tsd_key_create(key, destr) ((void) (key))
62 #define tsd_setspecific(key, data) __libc_tsd_set (void *, MALLOC, (data))
63 #define tsd_getspecific(key, vptr) ((vptr) = __libc_tsd_get (void *, MALLOC))
65 /* madvise is a stub on Hurd, so don't bother calling it. */
70 #define __madvise(addr, len, advice) \
71 ((void) (addr), (void) (len), (void) (advice))
73 #include <sysdeps/generic/malloc-machine.h>
75 #endif /* !defined(_MALLOC_MACHINE_H) */