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.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <features.h>
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#include <netdb.h>
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#undef h_errno
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#include <tls.h>
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/* We need to have the error status variable of the resolver
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accessible in the libc. */
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#if USE___THREAD
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__thread int h_errno;
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extern __thread int __libc_h_errno __attribute__ ((alias ("h_errno")))
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attribute_hidden;
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# define h_errno __libc_h_errno
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#else
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/* This differs from plain `int h_errno;' in that it doesn't create
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a common definition, but a plain symbol that resides in .bss,
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which can have an alias. */
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int h_errno __attribute__((section (".bss")));
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weak_alias (h_errno, _h_errno)
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/* We declare these with compat_symbol so that they are not
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visible at link time. Programs must use the accessor functions. */
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# if defined HAVE_ELF && defined SHARED && defined DO_VERSIONING
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# include <shlib-compat.h>
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compat_symbol (libc, h_errno, h_errno, GLIBC_2_0);
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compat_symbol (libc, _h_errno, _h_errno, GLIBC_2_0);
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# endif
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#endif
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