mirror of
https://github.com/alsa-project/alsa-lib.git
synced 2025-11-03 09:01:52 -05:00
c72bbed825
The following error is observed on Microblaze [1] build:
error: symver is only supported on ELF platforms
due to using __attribute__((symver)) on non-ELF platform.
[1] http://autobuild.buildroot.net/results/1e9/1e965d83d75615f35308440c5db044314a349357/build-end.log
ac_check_attribute_symver.m4 was downloaded from
https://github.com/smuellerDD/libkcapi/blob/master/m4/ac_check_attribute_symver.m4
Fixes: https://github.com/alsa-project/alsa-lib/pull/334
Signed-off-by: Tan En De <ende.tan@starfivetech.com>
Signed-off-by: Stephan Mueller <smueller@chronox.de>
Signed-off-by: Bernd Kuhls <bernd@kuhls.net>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
68 lines
2.5 KiB
C
68 lines
2.5 KiB
C
/*
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* ALSA lib - dynamic symbol versions
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* Copyright (c) 2002 by Jaroslav Kysela <perex@perex.cz>
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*
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*
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* This library is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as
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* published by the Free Software Foundation; either version 2.1 of
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* the License, or (at your option) any later version.
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*
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* This program 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
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*/
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#ifndef __ALSA_SYMBOLS_H
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#define __ALSA_SYMBOLS_H
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#if defined(PIC) && defined(VERSIONED_SYMBOLS) /* might be also configurable */
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#define USE_VERSIONED_SYMBOLS
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#endif
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#define INTERNAL_CONCAT2_2(Pre, Post) Pre##Post
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#define INTERNAL(Name) INTERNAL_CONCAT2_2(__, Name)
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#if HAVE_ATTRIBUTE_SYMVER && __GNUC__ > 10
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#define symbol_version(real, name, version) \
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extern __typeof (real) real __attribute__((symver (#name "@" #version)))
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#define default_symbol_version(real, name, version) \
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extern __typeof (real) real __attribute__((symver (#name "@@" #version)))
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#else
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#define symbol_version(real, name, version) \
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__asm__ (".symver " ASM_NAME(#real) "," ASM_NAME(#name) "@" #version)
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#define default_symbol_version(real, name, version) \
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__asm__ (".symver " ASM_NAME(#real) "," ASM_NAME(#name) "@@" #version)
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#endif
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#ifdef __clang__
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#define EXPORT_SYMBOL __attribute__((visibility("default")))
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#else
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#define EXPORT_SYMBOL __attribute__((visibility("default"),externally_visible))
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#endif
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#ifdef USE_VERSIONED_SYMBOLS
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#define use_symbol_version(real, name, version) \
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symbol_version(real, name, version)
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#define use_default_symbol_version(real, name, version) \
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default_symbol_version(real, name, version)
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#else
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#define use_symbol_version(real, name, version) /* nothing */
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#if defined(__alpha__) || defined(__mips__)
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#define use_default_symbol_version(real, name, version) \
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__asm__ (".weak " ASM_NAME(#name)); \
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__asm__ (ASM_NAME(#name) " = " ASM_NAME(#real))
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#else
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#define use_default_symbol_version(real, name, version) \
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__asm__ (".weak " ASM_NAME(#name)); \
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__asm__ (".set " ASM_NAME(#name) "," ASM_NAME(#real))
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#endif
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#endif
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#endif /* __ALSA_SYMBOLS_H */
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