v4.19.13 snapshot.
diff --git a/arch/sh/include/asm/stacktrace.h b/arch/sh/include/asm/stacktrace.h
new file mode 100644
index 0000000..50c173c
--- /dev/null
+++ b/arch/sh/include/asm/stacktrace.h
@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2009 Matt Fleming
+ *
+ * Based on:
+ * The x86 implementation - arch/x86/include/asm/stacktrace.h
+ */
+#ifndef _ASM_SH_STACKTRACE_H
+#define _ASM_SH_STACKTRACE_H
+
+/* Generic stack tracer with callbacks */
+
+struct stacktrace_ops {
+ void (*address)(void *data, unsigned long address, int reliable);
+ /* On negative return stop dumping */
+ int (*stack)(void *data, char *name);
+};
+
+void dump_trace(struct task_struct *tsk, struct pt_regs *regs,
+ unsigned long *stack,
+ const struct stacktrace_ops *ops, void *data);
+
+#endif /* _ASM_SH_STACKTRACE_H */