On 10/26/2015 05:26 PM, Jeremy Linton wrote:

On 10/08/2015 02:02 PM, Ard Biesheuvel wrote:

quoted

Since arm64 does not use a builtin decompressor, the EFI stub is built
into the kernel proper. So far, this has been working fine, but actually,
since the stub is in fact a PE/COFF relocatable binary that is executed
at an unknown offset in the 1:1 mapping provided by the UEFI firmware, we
should not be seamlessly sharing code with the kernel proper, which is a
position dependent executable linked at a high virtual offset.

This patch appears to be causing a build break

  STUBCPY drivers/firmware/efi/libstub/lib-sort.stub.o
0000000000000000 R_AARCH64_ABS64   __efistub___crc_sort
drivers/firmware/efi/libstub/lib-sort.stub.o: absolute symbol references
not allowed in the EFI stub

__kcrctab_sort:
     .xword    __crc_sort
     .weak    __crc_sort
     .text


Which is the EXPORT_SYMBOL() in sort.c combined with !CONFIG_MODVERSIONS.

	Sorry, I that should be CONFIG_MODVERSIONS..