linux/arch/arm64/include/asm/compiler.h

31 lines
1.2 KiB
C

/*
* Based on arch/arm/include/asm/compiler.h
*
* Copyright (C) 2012 ARM Ltd.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* 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, see <http://www.gnu.org/licenses/>.
*/
#ifndef __ASM_COMPILER_H
#define __ASM_COMPILER_H
/*
* This is used to ensure the compiler did actually allocate the register we
* asked it for some inline assembly sequences. Apparently we can't trust the
* compiler from one version to another so a bit of paranoia won't hurt. This
* string is meant to be concatenated with the inline asm string and will
* cause compilation to stop on mismatch. (for details, see gcc PR 15089)
*/
#define __asmeq(x, y) ".ifnc " x "," y " ; .err ; .endif\n\t"
#endif /* __ASM_COMPILER_H */