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2002-12-12  Ulrich Drepper  <drepper@redhat.com>

	* sysdeps/unix/sysv/linux/fork-gen.c: Renamed to...
	* sysdeps/unix/sysv/linux/libc_pthread_init.c: ...this.
	Initialize __libc_locking_needed.
	* init.c (__pthread_initialize_minimal): Call __libc_pthread_init
	instead of __register_pthread_fork_handler.
	* sysdeps/pthread/bits/libc-lock.h: Declare __libc_locking_needed.
	* sysdeps/unix/sysv/linux/Makefile (sysdep_routimes): Replace
	fork-gen with libc_pthread_init.
	* sysdeps/unix/sysv/linux/Versions: Use __libc_pthread_init instead
	of __register_pthread_fork_handler.
	* sysdeps/unix/sysv/linux/fork.h: Declare __libc_pthread_init instead
	of __register_pthread_fork_handler.
	* sysdeps/unix/sysv/linux/i386/lowlevellock.h: Use
	__libc_locking_needed to determine whether lock prefix can be avoided.
	* sysdeps/unix/sysv/linux/i386/i486/libc-lowlevellock.S: Likewise.
This commit is contained in:
Ulrich Drepper
2002-12-12 10:28:11 +00:00
parent 688e7bfe2b
commit 14e7aeceff
9 changed files with 279 additions and 10 deletions
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47
nptl/sysdeps/unix/sysv/linux/libc_pthread_init.c Normal file
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/* Copyright (C) 2002 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
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. */
#include <list.h>
#include "fork.h"
#include <bits/libc-lock.h>
static struct fork_handler pthread_child_handler;
/* Global variable signalled when locking is needed. */
int __libc_locking_needed;
void
__libc_pthread_init (ptr, reclaim)
unsigned long int *ptr;
void (*reclaim) (void);
{
/* Remember the pointer to the generation counter in libpthread. */
__fork_generation_pointer = ptr;
/* Called by a child after fork. */
pthread_child_handler.handler = reclaim;
/* The fork handler needed by libpthread. */
list_add_tail (&pthread_child_handler.list, &__fork_child_list);
/* Signal the internal locking code that locking is needed now. */
__libc_locking_needed = 1;
}