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44 lines
1.3 KiB
C
44 lines
1.3 KiB
C
#ifndef _COMPILER_H
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#define _COMPILER_H
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/*
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* Copyright (C) 2012 Michael Brown <mbrown@fensystems.co.uk>.
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*
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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 as
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* published by the Free Software Foundation; either version 2 of the
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* 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, but
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* 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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* General Public License for more details.
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*
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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
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* 02110-1301, USA.
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*/
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/**
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* @file
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*
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* Global compiler definitions
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*
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*/
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/* Force visibility of all symbols to "hidden", i.e. inform gcc that
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* all symbol references resolve strictly within our final binary.
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* This avoids unnecessary PLT/GOT entries on x86_64.
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*
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* This is a stronger claim than specifying "-fvisibility=hidden",
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* since it also affects symbols marked with "extern".
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*/
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#ifndef ASSEMBLY
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#if __GNUC__ >= 4
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#pragma GCC visibility push(hidden)
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#endif
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#endif /* ASSEMBLY */
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#endif /* _COMPILER_H */
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