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https://github.com/servalproject/serval-dna.git
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6dd823a9e8
In preparation for introducing "feature.h" for feature-driven linking.
54 lines
1.8 KiB
C
54 lines
1.8 KiB
C
/*
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Copyright (C) 2015 Serval Project Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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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 General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; 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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#ifndef __SERVAL_DNA__SECTION_H
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#define __SERVAL_DNA__SECTION_H
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#include "lang.h"
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/* Macros for creating named linkage sections.
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*/
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#define SECTION_START(X) __start_##X
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#define SECTION_END(X) __stop_##X
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#if defined(HAVE_VAR_ATTRIBUTE_SECTION)
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# define _SECTION_ATTRIBUTE(X) __section__(#X)
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# define DECLARE_SECTION(TYPE, X) \
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extern TYPE SECTION_START(X)[];\
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extern TYPE SECTION_END(X)[]
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#elif defined(HAVE_VAR_ATTRIBUTE_SECTION_SEG)
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# define _SECTION_ATTRIBUTE(X) __section__("__DATA,__"#X)
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# define DECLARE_SECTION(TYPE, X) \
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extern TYPE SECTION_START(X)[] __asm("section$start$__DATA$__" #X);\
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extern TYPE SECTION_END(X)[] __asm("section$end$__DATA$__" #X)
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#else
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#error "Compiler does not support __attribute__(section())"
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#endif
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#if !defined(HAVE_FUNC_ATTRIBUTE_ALIGNED)
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#error "Compiler does not support __attribute__(aligned())"
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#elif !defined(HAVE_FUNC_ATTRIBUTE_USED)
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#error "Compiler does not support __attribute__(used)"
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#else
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#define IN_SECTION(name) __attribute__((__used__, __aligned__(sizeof(void *)), _SECTION_ATTRIBUTE(name)))
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#endif
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#endif // __SERVAL_DNA__SECTION_H
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