scripts/kallsyms: filter arm64's __efistub_ symbols
On arm64, the EFI stub and the kernel proper are essentially the same binary, although the EFI stub executes at a different virtual address as the kernel. For this reason, the EFI stub is restricted in the symbols it can link to, which is ensured by prefixing all EFI stub symbols with __efistub_ (and emitting __efistub_ prefixed aliases for routines that may be shared between the core kernel and the stub) These symbols are leaking into kallsyms, polluting the namespace, so let's filter them explicitly. Signed-off-by: NArd Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: NWill Deacon <will.deacon@arm.com>
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