arm64: ftrace: eliminate literal pool entries
Replace ldr xN, =<symbol> with adrp/add or adrp/ldr [as appropriate] in the implementation of _mcount(), which may be called very often. Signed-off-by: NArd Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: NWill Deacon <will.deacon@arm.com>
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