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-rw-r--r--arch/loongarch/include/asm/bug.h61
1 files changed, 61 insertions, 0 deletions
diff --git a/arch/loongarch/include/asm/bug.h b/arch/loongarch/include/asm/bug.h
new file mode 100644
index 0000000000..d4ca3ba254
--- /dev/null
+++ b/arch/loongarch/include/asm/bug.h
@@ -0,0 +1,61 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ASM_BUG_H
+#define __ASM_BUG_H
+
+#include <asm/break.h>
+#include <linux/stringify.h>
+
+#ifndef CONFIG_DEBUG_BUGVERBOSE
+#define _BUGVERBOSE_LOCATION(file, line)
+#else
+#define __BUGVERBOSE_LOCATION(file, line) \
+ .pushsection .rodata.str, "aMS", @progbits, 1; \
+ 10002: .string file; \
+ .popsection; \
+ \
+ .long 10002b - .; \
+ .short line;
+#define _BUGVERBOSE_LOCATION(file, line) __BUGVERBOSE_LOCATION(file, line)
+#endif
+
+#ifndef CONFIG_GENERIC_BUG
+#define __BUG_ENTRY(flags)
+#else
+#define __BUG_ENTRY(flags) \
+ .pushsection __bug_table, "aw"; \
+ .align 2; \
+ 10000: .long 10001f - .; \
+ _BUGVERBOSE_LOCATION(__FILE__, __LINE__) \
+ .short flags; \
+ .popsection; \
+ 10001:
+#endif
+
+#define ASM_BUG_FLAGS(flags) \
+ __BUG_ENTRY(flags) \
+ break BRK_BUG
+
+#define ASM_BUG() ASM_BUG_FLAGS(0)
+
+#define __BUG_FLAGS(flags) \
+ asm_inline volatile (__stringify(ASM_BUG_FLAGS(flags)));
+
+#define __WARN_FLAGS(flags) \
+do { \
+ instrumentation_begin(); \
+ __BUG_FLAGS(BUGFLAG_WARNING|(flags)); \
+ instrumentation_end(); \
+} while (0)
+
+#define BUG() \
+do { \
+ instrumentation_begin(); \
+ __BUG_FLAGS(0); \
+ unreachable(); \
+} while (0)
+
+#define HAVE_ARCH_BUG
+
+#include <asm-generic/bug.h>
+
+#endif /* __ASM_BUG_H */