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glibc  2.9
libc-tls-loc.c
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00001 /* Special definitions for libc's own exposed thread-specific variables.
00002    Copyright (C) 2002 Free Software Foundation, Inc.
00003    This file is part of the GNU C Library.
00004 
00005    The GNU C Library is free software; you can redistribute it and/or
00006    modify it under the terms of the GNU Lesser General Public License as
00007    published by the Free Software Foundation; either version 2.1 of the
00008    License, or (at your option) any later version.
00009 
00010    The GNU C Library is distributed in the hope that it will be useful,
00011    but WITHOUT ANY WARRANTY; without even the implied warranty of
00012    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013    Lesser General Public License for more details.
00014 
00015    You should have received a copy of the GNU Lesser General Public
00016    License along with the GNU C Library; see the file COPYING.LIB.  If not,
00017    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
00018    Boston, MA 02111-1307, USA.  */
00019 
00020 #include <tls.h>
00021 
00022 #if USE___THREAD
00023 # include <errno.h>
00024 # include <netdb.h>
00025 # include <resolv.h>
00026 
00027 /* These functions have identical definitions in libc.  But the versioned
00028    dependencies in executables bind them to libpthread.so definitions,
00029    so we must have some here.  */
00030 
00031 int *
00032 __errno_location (void)
00033 {
00034   return &errno;
00035 }
00036 
00037 int *
00038 __h_errno_location (void)
00039 {
00040   return &h_errno;
00041 }
00042 
00043 struct __res_state *
00044 __res_state (void)
00045 {
00046   return __resp;
00047 }
00048 
00049 #endif