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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, see <http://www.gnu.org/licenses/>. */ #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) */ |