mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-14 09:01:07 +00:00
1f503475a5
2003-02-07 Jakub Jelinek <jakub@redhat.com> * resolv/res_libc.c (_res): Ensure _res is not common symbol, so that it can have aliases. * inet/herrno.c (h_errno): Put it into .bss not .data section. Patch by Lance Larsh <Lance.Larsh@oracle.com>.
48 lines
1.7 KiB
C
48 lines
1.7 KiB
C
/* Copyright (C) 1996,97,98,2002,2003 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 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 <features.h>
|
|
#include <netdb.h>
|
|
#undef h_errno
|
|
|
|
#include <tls.h>
|
|
|
|
/* We need to have the error status variable of the resolver
|
|
accessible in the libc. */
|
|
|
|
#if USE___THREAD
|
|
__thread int h_errno;
|
|
extern __thread int __libc_h_errno __attribute__ ((alias ("h_errno")))
|
|
attribute_hidden;
|
|
# define h_errno __libc_h_errno
|
|
#else
|
|
/* This differs from plain `int h_errno;' in that it doesn't create
|
|
a common definition, but a plain symbol that resides in .bss,
|
|
which can have an alias. */
|
|
int h_errno __attribute__((section (".bss")));
|
|
weak_alias (h_errno, _h_errno)
|
|
|
|
/* We declare these with compat_symbol so that they are not
|
|
visible at link time. Programs must use the accessor functions. */
|
|
# if defined HAVE_ELF && defined SHARED && defined DO_VERSIONING
|
|
# include <shlib-compat.h>
|
|
compat_symbol (libc, h_errno, h_errno, GLIBC_2_0);
|
|
compat_symbol (libc, _h_errno, _h_errno, GLIBC_2_0);
|
|
# endif
|
|
#endif
|