no-tsd.c

它通过提供glibc兼容使得应用程序移植到较小的c 库时相当得容易. 它能够应用到带虚拟存储的Linux和uClinux上.在大多数带MMU部件的平台上为使它更加紧凑,它也能够编译成共享库.uClib

/* libc-internal interface for thread-specific data.
   Copyright (C) 1998 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public License as
   published by the Free Software Foundation; either version 2 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
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public
   License along with the GNU C Library; see the file COPYING.LIB.  If not,
   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
   Boston, MA 02111-1307, USA.  */

#include <bits/libc-tsd.h>

/* This file provides uinitialized (common) definitions for the
   hooks used internally by libc to access thread-specific data.

   When -lpthread is used, it provides initialized definitions for these
   variables (in specific.c), which override these uninitialized definitions.

   If -lpthread is not used, these uninitialized variables default to zero,
   which the __libc_tsd_* macros check for.   */

void *(*__libc_internal_tsd_get) __P ((enum __libc_tsd_key_t));
int (*__libc_internal_tsd_set) __P ((enum __libc_tsd_key_t,
				     __const void *));