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Diffstat (limited to 'kernel/arch/arm64/include/asm/compiler.h')
| -rw-r--r-- | kernel/arch/arm64/include/asm/compiler.h | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/kernel/arch/arm64/include/asm/compiler.h b/kernel/arch/arm64/include/asm/compiler.h new file mode 100644 index 000000000..ee35fd0f2 --- /dev/null +++ b/kernel/arch/arm64/include/asm/compiler.h @@ -0,0 +1,30 @@ +/* + * 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 */ |