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78e02c4698
It is generally not possible to add hidden aliases for global data
symbols: If the main executable contains a copy relocation against
the symbol, the hidden aliases keep pointing to the glibc-internal
copy of the symbol, instead of the symbol actually used by the
application.
Fixes commit 89aacb513e ("sunrpc:
Remove stray exports without --enable-obsolete-rpc [BZ #23166]").
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
62 lines
2.7 KiB
C
62 lines
2.7 KiB
C
/*
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* Copyright (c) 2010, Oracle America, Inc.
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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* * Neither the name of the "Oracle America, Inc." nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <rpc/rpc.h>
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#include <shlib-compat.h>
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#undef svc_fdset
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#undef rpc_createerr
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#undef svc_pollfd
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#undef svc_max_pollfd
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/*
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* This file should only contain common data (global data) that is exported
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* by public interfaces
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*/
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/* We are very tricky here. We want to have _null_auth in a read-only
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section but we cannot add const to the type because this isn't how
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the variable is declared. So we use the section attribute. */
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struct opaque_auth _null_auth __attribute__ ((nocommon));
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libc_hidden_nolink_sunrpc (_null_auth, GLIBC_2_0)
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/* The variables need the nocommon attribute, so that it is possible
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to create aliases and specify symbol versions. */
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fd_set svc_fdset __attribute__ ((nocommon));
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struct rpc_createerr rpc_createerr __attribute__ ((nocommon));
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struct pollfd *svc_pollfd __attribute__ ((nocommon));
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int svc_max_pollfd __attribute__ ((nocommon));
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#ifdef SHARED
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# ifndef EXPORT_RPC_SYMBOLS
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compat_symbol (libc, svc_fdset, svc_fdset, GLIBC_2_0);
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compat_symbol (libc, rpc_createerr, rpc_createerr, GLIBC_2_0);
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compat_symbol (libc, svc_pollfd, svc_pollfd, GLIBC_2_2);
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compat_symbol (libc, svc_max_pollfd, svc_max_pollfd, GLIBC_2_2);
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# endif
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#endif
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