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Work around VNET and DPCPU related panics on aarch64
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Authored by dim on Jul 23 2023, 1:54 PM.
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Details

Summary

lld >= 14 and recent GNU ld can relax adrp+add and adrp+ldr
instructions, which breaks VNET and DPCPU when used in modules.

Until VNET and DPCPU can be fixed to deal with these relaxed
instructions, disable linker relaxation for now.

PR: 264094
MFC after: 3 days

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rG FreeBSD src repository
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