diff options
Diffstat (limited to 'linuxthreads/sysdeps/unix/sysv/linux')
| -rw-r--r-- | linuxthreads/sysdeps/unix/sysv/linux/hppa/malloc-machine.h | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/linuxthreads/sysdeps/unix/sysv/linux/hppa/malloc-machine.h b/linuxthreads/sysdeps/unix/sysv/linux/hppa/malloc-machine.h new file mode 100644 index 0000000000..817cf59222 --- /dev/null +++ b/linuxthreads/sysdeps/unix/sysv/linux/hppa/malloc-machine.h @@ -0,0 +1,73 @@ +/* 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) */ |