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-rw-r--r--arch/sh/include/asm/unwinder.h32
1 files changed, 32 insertions, 0 deletions
diff --git a/arch/sh/include/asm/unwinder.h b/arch/sh/include/asm/unwinder.h
new file mode 100644
index 000000000..ce82c96c7
--- /dev/null
+++ b/arch/sh/include/asm/unwinder.h
@@ -0,0 +1,32 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _LINUX_UNWINDER_H
+#define _LINUX_UNWINDER_H
+
+#include <asm/stacktrace.h>
+
+struct unwinder {
+ const char *name;
+ struct list_head list;
+ int rating;
+ void (*dump)(struct task_struct *, struct pt_regs *,
+ unsigned long *, const struct stacktrace_ops *, void *);
+};
+
+extern int unwinder_init(void);
+extern int unwinder_register(struct unwinder *);
+
+extern void unwind_stack(struct task_struct *, struct pt_regs *,
+ unsigned long *, const struct stacktrace_ops *,
+ void *);
+
+extern void stack_reader_dump(struct task_struct *, struct pt_regs *,
+ unsigned long *, const struct stacktrace_ops *,
+ void *);
+
+/*
+ * Used by fault handling code to signal to the unwinder code that it
+ * should switch to a different unwinder.
+ */
+extern int unwinder_faulted;
+
+#endif /* _LINUX_UNWINDER_H */