[Bug ld/22764] [2.30 Regression] ld fails to link 4.13 and 4.15 kernels on aarch64-linux-gnu

[pinskia at gcc dot gnu.org]

https://sourceware.org/bugzilla/show_bug.cgi?id=22764

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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                 CC|                            |pinskia at gcc dot gnu.org

--- Comment #7 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Matthias Klose from comment #6)
> systemd on aarch64 configured with efi support fails with a similar
> relocation error:
> 
> ld -o src/boot/efi/systemd_boot.so -T /usr/lib/elf_aarch64_efi.lds -shared
> -Bsymbolic -nostdlib -znocombreloc -L /usr/lib /usr/lib/crt0-efi-aarch64.o
> --defsym=EFI_SUBSYSTEM=0xa src/boot/efi/disk.c.o src/boot/efi/graphics.c.o
> src/boot/efi/measure.c.o src/boot/efi/pe.c.o src/boot/efi/util.c.o
> src/boot/efi/boot.c.o src/boot/efi/console.c.o src/boot/efi/shim.c.o -lefi
> -lgnuefi /usr/lib/gcc/aarch64-linux-gnu/7/libgcc.a
> ld: /usr/lib/crt0-efi-aarch64.o: relocation R_AARCH64_ABS16 against
> `EFI_SUBSYSTEM' can not be used when making a shared object

This is a bug in either in gnu-efi or systemd.  EFI_SUBSYSTEM is in the pe-coff
header so we don't want any relocation there :).  Basically EFI_SUBSYSTEM is
not being defined.  Note Uboot has a similar bug too.

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