Add aarch64 library variants for no-unaligned-access #572
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This introduces new library variants for aarch64 to support targets where unaligned memory accesses are disabled. To enable these changes a patch to picolibc was required, ensuring the assembly implemenation that relies on unaligned accesses is not used when `__ARM_FEATURE_UNALIGNED` is not defined.
Adding this patch picolibc/picolibc#874 as a downstream which has the necesary boot code changes in order for the -mno-unaligned-access to work.
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This introduces new library variants for aarch64 to support targets
where unaligned memory accesses are disabled.
To enable these changes a patch to picolibc was required, ensuring the
assembly implemenation that relies on unaligned accesses is not used
when __ARM_FEATURE_UNALIGNED is not defined.
Co-authored by: @pratlucas (
(#567)