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The software division functions never had unwinding annotations added. Currently, when a division by zero occurs the backtrace shown will stop at Ldiv0 or some completely unrelated function. Add unwinding annotations in hopes of getting a more useful backtrace when a division by zero occurs. Signed-off-by: Laura Abbott <[email protected]> Acked-by: Dave Martin <[email protected]> Signed-off-by: Russell King <[email protected]>