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2016-01-04tile/jump_label: add jump label support for TILE-GxZhigang Lu1-0/+64
Add the arch-specific code to support jump label for TILE-Gx. This code shares NOP instruction with ftrace, so we move it to a common header file. Reviewed-by: Chris Metcalf <cmetcalf@ezchip.com> Signed-off-by: Zhigang Lu <zlu@ezchip.com> Signed-off-by: Chris Metcalf <cmetcalf@ezchip.com>