Diffstat (limited to 'arch/arm64/include/asm/compiler.h')
1 files changed, 30 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/compiler.h b/arch/arm64/include/asm/compiler.h
new file mode 100644
@@ -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/>.
+ * 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 */