1 files changed, 69 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/asm-bug.h b/arch/arm64/include/asm/asm-bug.h
new file mode 100644
index 000000000000..a5f13801b784
--- /dev/null
+++ b/arch/arm64/include/asm/asm-bug.h
@@ -0,0 +1,69 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+#ifndef __ASM_ASM_BUG_H
+/*
+ * Copyright (C) 2017  ARM Limited
+ */
+#define __ASM_ASM_BUG_H
+
+#include <asm/brk-imm.h>
+
+#ifdef CONFIG_DEBUG_BUGVERBOSE
+#define _BUGVERBOSE_LOCATION(file, line) __BUGVERBOSE_LOCATION(file, line)
+#define __BUGVERBOSE_LOCATION(file, line)			\
+		.pushsection .rodata.str,"aMS",@progbits,1;	\
+	14472:	.string file;					\
+		.popsection;					\
+								\
+		.long 14472b - .;				\
+		.short line;
+#else
+#define _BUGVERBOSE_LOCATION(file, line)
+#endif
+
+#ifdef CONFIG_GENERIC_BUG
+#define __BUG_ENTRY_START				\
+		.pushsection __bug_table,"aw";		\
+		.align 2;				\
+	14470:	.long 14471f - .;			\
+
+#define __BUG_ENTRY_END					\
+		.align 2;				\
+		.popsection;				\
+	14471:
+
+#define __BUG_ENTRY(flags)				\
+		__BUG_ENTRY_START			\
+_BUGVERBOSE_LOCATION(__FILE__, __LINE__)		\
+		.short flags;				\
+		__BUG_ENTRY_END
+#else
+#define __BUG_ENTRY(flags)
+#endif
+
+#define ASM_BUG_FLAGS(flags)				\
+	__BUG_ENTRY(flags)				\
+	brk	BUG_BRK_IMM
+
+#define ASM_BUG()	ASM_BUG_FLAGS(0)
+
+#ifdef CONFIG_DEBUG_BUGVERBOSE
+#define __BUG_LOCATION_STRING(file, line)		\
+		".long " file "- .;"			\
+		".short " line ";"
+#else
+#define __BUG_LOCATION_STRING(file, line)
+#endif
+
+#define __BUG_ENTRY_STRING(file, line, flags)		\
+		__stringify(__BUG_ENTRY_START)		\
+		__BUG_LOCATION_STRING(file, line)	\
+		".short " flags ";"			\
+		__stringify(__BUG_ENTRY_END)
+
+#define ARCH_WARN_ASM(file, line, flags, size)		\
+	__BUG_ENTRY_STRING(file, line, flags)		\
+	__stringify(brk BUG_BRK_IMM)
+
+#define ARCH_WARN_REACHABLE
+
+#endif /* __ASM_ASM_BUG_H */