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- /* HP-PARISC macro definitions for mutexes, thread-specific data
- and parameters for malloc.
- Copyright (C) 2003 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- Contributed by Carlos O'Donell <carlos@baldric.uwo.ca>, 2003.
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- 02111-1307 USA. */
- #ifndef _MALLOC_MACHINE_H
- #define _MALLOC_MACHINE_H
- #undef thread_atfork_static
- #include <atomic.h>
- #include <bits/libc-lock.h>
- __libc_lock_define (typedef, mutex_t)
- /* Since our lock structure does not tolerate being initialized to zero, we must
- modify the standard function calls made by malloc */
- # define mutex_init(m) \
- __libc_maybe_call (__pthread_mutex_init, (m, NULL), \
- (((m)->__m_lock.__spinlock = __LT_SPINLOCK_INIT),(*(int *)(m))) )
- # define mutex_lock(m) \
- __libc_maybe_call (__pthread_mutex_lock, (m), \
- (__load_and_clear(&((m)->__m_lock.__spinlock)), 0))
- # define mutex_trylock(m) \
- __libc_maybe_call (__pthread_mutex_trylock, (m), \
- (*(int *)(m) ? 1 : (__load_and_clear(&((m)->__m_lock.__spinlock)), 0)))
- # define mutex_unlock(m) \
- __libc_maybe_call (__pthread_mutex_unlock, (m), \
- (((m)->__m_lock.__spinlock = __LT_SPINLOCK_INIT), (*(int *)(m))) )
- /* This is defined by newer gcc version unique for each module. */
- extern void *__dso_handle __attribute__ ((__weak__));
- #include <fork.h>
- #ifdef SHARED
- # define thread_atfork(prepare, parent, child) \
- __register_atfork (prepare, parent, child, __dso_handle)
- #else
- # define thread_atfork(prepare, parent, child) \
- __register_atfork (prepare, parent, child, \
- &__dso_handle == NULL ? NULL : __dso_handle)
- #endif
- /* thread specific data for glibc */
- #include <bits/libc-tsd.h>
- typedef int tsd_key_t[1]; /* no key data structure, libc magic does it */
- __libc_tsd_define (static, MALLOC) /* declaration/common definition */
- #define tsd_key_create(key, destr) ((void) (key))
- #define tsd_setspecific(key, data) __libc_tsd_set (MALLOC, (data))
- #define tsd_getspecific(key, vptr) ((vptr) = __libc_tsd_get (MALLOC))
- #include <sysdeps/generic/malloc-machine.h>
- #endif /* !defined(_MALLOC_MACHINE_H) */
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