Linux-libre 4.3.2-gnu

1 files changed, 64 insertions, 0 deletions

diff --git a/arch/arm64/include/asm/bug.h b/arch/arm64/include/asm/bug.h
new file mode 100644
index 000000000..4a748ce9b
--- /dev/null
+++ b/arch/arm64/include/asm/bug.h
@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2015  ARM Limited
+ * Author: Dave Martin <Dave.Martin@arm.com>
+ *
+ * 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 _ARCH_ARM64_ASM_BUG_H
+#define _ARCH_ARM64_ASM_BUG_H
+
+#include <asm/debug-monitors.h>
+
+#ifdef CONFIG_GENERIC_BUG
+#define HAVE_ARCH_BUG
+
+#ifdef CONFIG_DEBUG_BUGVERBOSE
+#define _BUGVERBOSE_LOCATION(file, line) __BUGVERBOSE_LOCATION(file, line)
+#define __BUGVERBOSE_LOCATION(file, line)				\
+		".pushsection .rodata.str,\"aMS\",@progbits,1\n"	\
+	"2:	.string \"" file "\"\n\t"				\
+		".popsection\n\t"					\
+									\
+		".long 2b - 0b\n\t"					\
+		".short " #line "\n\t"
+#else
+#define _BUGVERBOSE_LOCATION(file, line)
+#endif
+
+#define _BUG_FLAGS(flags) __BUG_FLAGS(flags)
+
+#define __BUG_FLAGS(flags) asm volatile (		\
+		".pushsection __bug_table,\"a\"\n\t"	\
+		".align 2\n\t"				\
+	"0:	.long 1f - 0b\n\t"			\
+_BUGVERBOSE_LOCATION(__FILE__, __LINE__)		\
+		".short " #flags "\n\t"			\
+		".popsection\n"				\
+							\
+	"1:	brk %[imm]"				\
+		:: [imm] "i" (BUG_BRK_IMM)		\
+)
+
+#define BUG() do {				\
+	_BUG_FLAGS(0);				\
+	unreachable();				\
+} while (0)
+
+#define __WARN_TAINT(taint) _BUG_FLAGS(BUGFLAG_TAINT(taint))
+
+#endif /* ! CONFIG_GENERIC_BUG */
+
+#include <asm-generic/bug.h>
+
+#endif /* ! _ARCH_ARM64_ASM_BUG_H */