GRUB no longer builds on sparc64 after recent binutils changes

[John Paul Adrian Glaubitz]

Hi!

binutils upstream recently dropped support for a.out and COFF on sparc [1]
which now causes GRUB failing to build on sparc64-linux [2]:

if test x0 = x1; then   ../grub-macho2img diskboot.image diskboot.img; else   
objcopy  -O binary  --strip-unneeded -R .note -R .comment -R .note.gnu.build-id 
-R .MIPS.abiflags -R .reginfo -R .rel.dyn -R .note.gnu.gold-version -R 
.ARM.exidx diskboot.image diskboot.img; fi
objcopy:boot.img: invalid bfd target
make[5]: *** [Makefile:42941: boot.img] Error 1
make[5]: *** Waiting for unfinished jobs....
objcopy:cdboot.img: invalid bfd target
make[5]: *** [Makefile:42950: cdboot.img] Error 1

Does anyone know how we can resolve this issue? Can SPARC's OpenFirmware
handle ELF files?

Aren't COFF or a.out binaries often required by firmware loaders or similar?

Thanks,
Adrian

> [1] 
> https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;a=commitdiff;h=c9098af41e3246586a30f4f0bdb0ee4367e9a5e7#patch1
> [2] 
> https://buildd.debian.org/status/fetch.php?pkg=grub2&arch=sparc64&ver=2.02%2Bdfsg1-5&stamp=1533001924&raw=0

-- 
 .''`.  John Paul Adrian Glaubitz
: :' :  Debian Developer - address@hidden
`. `'   Freie Universitaet Berlin - address@hidden
  `-    GPG: 62FF 8A75 84E0 2956 9546  0006 7426 3B37 F5B5 F913