1 files changed, 31 insertions, 0 deletions

diff --git a/arch/sh/include/asm/unwinder.h b/arch/sh/include/asm/unwinder.h
new file mode 100644
index 000000000000..1e65c07b3e18
--- /dev/null
+++ b/arch/sh/include/asm/unwinder.h
@@ -0,0 +1,31 @@
+#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 */