Although stage2.head is not directly used in stage2, it is required by
other stages. To ensure it is retained during link-time
optimization (LTO), explicitly mark it as used. This improves code
readability and prevents LTO from mistakenly removing it.
Reviewed-by: Mikhail Zaslonko <zaslonko@linux.ibm.com>
Reviewed-by: Stefan Haberland <sth@linux.ibm.com>
Signed-off-by: Marc Hartmayer <mhartmay@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
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