Re: [parisc-linux] [PATCH] hppa machine-malloc.h

[Joel Soete <soete.joel@tiscali.be>]

Hi Carlos,

Thanks for all.
Just a question: for testing goal only are you going to update p-l glibc 
cvs or put all those material somewhere (eg ftp.p-l.org)?

Thanks again,
    Joel

Carlos O'Donell wrote:

>libc-alpha,
>
>Machine specific hppa malloc locking functions.
>
>Thanks to Wolfram for making the required changes, and reminding me to
>submit my patches ;)
>
>Cheers,
>Carlos.
>===
> linuxthreads/sysdeps/unix/sysv/linux/hppa/malloc-machine.h |   73 ++++++++++
> 1 files changed, 73 insertions(+)
>===
>
>2003-10-10  Carlos O'Donell  <carlos@baldric.uwo.ca>
>
>	* linuxthreads/sysdeps/unix/sysv/linux/hppa/malloc-machine.h: New.
>
>--- libc/linuxthreads/sysdeps/unix/sysv/linux/hppa/malloc-machine.h.orig	1969-12-31 19:00:00.000000000 -0500
>+++ libc/linuxthreads/sysdeps/unix/sysv/linux/hppa/malloc-machine.h	2003-10-04 12:52:09.000000000 -0400
>@@ -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) */
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