Ventoy/wimboot/wimboot-2.7.3/src/compiler.h

44 lines
1.3 KiB
C

#ifndef _COMPILER_H
#define _COMPILER_H
/*
* Copyright (C) 2012 Michael Brown <mbrown@fensystems.co.uk>.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
/**
* @file
*
* Global compiler definitions
*
*/
/* Force visibility of all symbols to "hidden", i.e. inform gcc that
* all symbol references resolve strictly within our final binary.
* This avoids unnecessary PLT/GOT entries on x86_64.
*
* This is a stronger claim than specifying "-fvisibility=hidden",
* since it also affects symbols marked with "extern".
*/
#ifndef ASSEMBLY
#if __GNUC__ >= 4
#pragma GCC visibility push(hidden)
#endif
#endif /* ASSEMBLY */
#endif /* _COMPILER_H */