[BUG] Xen-4.8.0 efi/buildid.o: file not recognized/Ambiguous

[BUG] Xen-4.8.0 efi/buildid.o: file not recognized/Ambiguous

[John L. Poole]

I did the the following:

wget https://downloads.xenproject.org/release/xen/4.8.0/xen-4.8.0.tar.gz
tar -xvzf xen-4.8.0.tar.gz
cd /usr/local/src/xen-4.8.0
./configure

The config.log is available at: http://napadata.net/paste/view/9e7faf3d


make

    ...
     mv -f .efi.lds.d.new .efi.lds.d
     gcc -Wall -Werror -Wstrict-prototypes -O2 -fomit-frame-pointer 
-fno-strict-aliasing -Wdeclaration-after-statement -g -o efi/mkreloc 
efi/mkreloc.c
     ld -mi386pep --subsystem=10 --image-base=0xffff82d080000000 
--stack=0,0 --heap=0,0 --strip-debug --section-alignment=0x200000 
--file-alignment=0x20 --major-image-version=4 --minor-image-version=8 
--major-os-version=2 --minor-os-version=0 --major-subsystem-version=2 
--minor-subsystem-version=0 --build-id=sha1 -T efi.lds -N prelink-efi.o 
efi/relocs-dummy.o /usr/local/src/xen-4.8.0/xen/common/symbols-dummy.o 
efi/buildid.o -o 
/usr/local/src/xen-4.8.0/xen/.xen.efi.0xffff82d080000000.0 &&   ld 
-mi386pep --subsystem=10 --image-base=0xffff82d0c0000000 --stack=0,0 
--heap=0,0 --strip-debug --section-alignment=0x200000 
--file-alignment=0x20 --major-image-version=4 --minor-image-version=8 
--major-os-version=2 --minor-os-version=0 --major-subsystem-version=2 
--minor-subsystem-version=0 --build-id=sha1 -T efi.lds -N prelink-efi.o 
efi/relocs-dummy.o /usr/local/src/xen-4.8.0/xen/common/symbols-dummy.o 
efi/buildid.o -o 
/usr/local/src/xen-4.8.0/xen/.xen.efi.0xffff82d0c0000000.0 && :
     efi/buildid.o: file not recognized: File format is ambiguous
     efi/buildid.o: matching formats: coff-x86-64 pe-x86-64
     Makefile:175: recipe for target 
'/usr/local/src/xen-4.8.0/xen/xen.efi' failed
     make[3]: *** [/usr/local/src/xen-4.8.0/xen/xen.efi] Error 1
     make[3]: Leaving directory '/usr/local/src/xen-4.8.0/xen/arch/x86'
     Makefile:135: recipe for target '/usr/local/src/xen-4.8.0/xen/xen' 
failed
     make[2]: *** [/usr/local/src/xen-4.8.0/xen/xen] Error 2
     make[2]: Leaving directory '/usr/local/src/xen-4.8.0/xen'
     Makefile:45: recipe for target 'install' failed
     make[1]: *** [install] Error 2
     make[1]: Leaving directory '/usr/local/src/xen-4.8.0/xen'
     Makefile:97: recipe for target 'install-xen' failed
     make: *** [install-xen] Error 2
     jlpoole@zeta /usr/local/src/xen-4.8.0 $

I can post anything other information requested in my pastebin or 
provide as directed. I would have opened a bug, but 
https://wiki.xenproject.org/wiki/Reporting_Bugs_against_Xen_Project 
suggests sending to this list first.

John Poole



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Re: [BUG] Xen-4.8.0 efi/buildid.o: file not recognized/Ambiguous

[Jan Beulich]

>>> On 07.12.16 at 16:57, <jlpoole56@gmail.com> wrote:
> I did the the following:
> 
> wget https://downloads.xenproject.org/release/xen/4.8.0/xen-4.8.0.tar.gz 
> tar -xvzf xen-4.8.0.tar.gz
> cd /usr/local/src/xen-4.8.0
> ./configure
> 
> The config.log is available at: http://napadata.net/paste/view/9e7faf3d 
> 
> 
> make
> 
>     ...
>      mv -f .efi.lds.d.new .efi.lds.d
>      gcc -Wall -Werror -Wstrict-prototypes -O2 -fomit-frame-pointer 
> -fno-strict-aliasing -Wdeclaration-after-statement -g -o efi/mkreloc 
> efi/mkreloc.c
>      ld -mi386pep --subsystem=10 --image-base=0xffff82d080000000 
> --stack=0,0 --heap=0,0 --strip-debug --section-alignment=0x200000 
> --file-alignment=0x20 --major-image-version=4 --minor-image-version=8 
> --major-os-version=2 --minor-os-version=0 --major-subsystem-version=2 
> --minor-subsystem-version=0 --build-id=sha1 -T efi.lds -N prelink-efi.o 
> efi/relocs-dummy.o /usr/local/src/xen-4.8.0/xen/common/symbols-dummy.o 
> efi/buildid.o -o 
> /usr/local/src/xen-4.8.0/xen/.xen.efi.0xffff82d080000000.0 &&   ld 
> -mi386pep --subsystem=10 --image-base=0xffff82d0c0000000 --stack=0,0 
> --heap=0,0 --strip-debug --section-alignment=0x200000 
> --file-alignment=0x20 --major-image-version=4 --minor-image-version=8 
> --major-os-version=2 --minor-os-version=0 --major-subsystem-version=2 
> --minor-subsystem-version=0 --build-id=sha1 -T efi.lds -N prelink-efi.o 
> efi/relocs-dummy.o /usr/local/src/xen-4.8.0/xen/common/symbols-dummy.o 
> efi/buildid.o -o 
> /usr/local/src/xen-4.8.0/xen/.xen.efi.0xffff82d0c0000000.0 && :
>      efi/buildid.o: file not recognized: File format is ambiguous
>      efi/buildid.o: matching formats: coff-x86-64 pe-x86-64

Hmm, at the first glance I'd call this a binutils bug: When talking
about an object file, it's necessarily COFF and never PE. But I'd
have to study their logic first to be certain. What binutils version
are you using, and what's the target list e.g. objcopy lists at the
end of its --help output?

Jan


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Re: [BUG] Xen-4.8.0 efi/buildid.o: file not recognized/Ambiguous

[John L. Poole]

On 12/7/2016 8:51 AM, Jan Beulich wrote:
>>>> On 07.12.16 at 16:57, <jlpoole56@gmail.com> wrote:
>> I did the the following:
>>
>> wget https://downloads.xenproject.org/release/xen/4.8.0/xen-4.8.0.tar.gz
>> tar -xvzf xen-4.8.0.tar.gz
>> cd /usr/local/src/xen-4.8.0
>> ./configure
>>
>> The config.log is available at: http://napadata.net/paste/view/9e7faf3d
>>
>>
>> make
>>
>>      ...
>>       mv -f .efi.lds.d.new .efi.lds.d
>>       gcc -Wall -Werror -Wstrict-prototypes -O2 -fomit-frame-pointer
>> -fno-strict-aliasing -Wdeclaration-after-statement -g -o efi/mkreloc
>> efi/mkreloc.c
>>       ld -mi386pep --subsystem=10 --image-base=0xffff82d080000000
>> --stack=0,0 --heap=0,0 --strip-debug --section-alignment=0x200000
>> --file-alignment=0x20 --major-image-version=4 --minor-image-version=8
>> --major-os-version=2 --minor-os-version=0 --major-subsystem-version=2
>> --minor-subsystem-version=0 --build-id=sha1 -T efi.lds -N prelink-efi.o
>> efi/relocs-dummy.o /usr/local/src/xen-4.8.0/xen/common/symbols-dummy.o
>> efi/buildid.o -o
>> /usr/local/src/xen-4.8.0/xen/.xen.efi.0xffff82d080000000.0 &&   ld
>> -mi386pep --subsystem=10 --image-base=0xffff82d0c0000000 --stack=0,0
>> --heap=0,0 --strip-debug --section-alignment=0x200000
>> --file-alignment=0x20 --major-image-version=4 --minor-image-version=8
>> --major-os-version=2 --minor-os-version=0 --major-subsystem-version=2
>> --minor-subsystem-version=0 --build-id=sha1 -T efi.lds -N prelink-efi.o
>> efi/relocs-dummy.o /usr/local/src/xen-4.8.0/xen/common/symbols-dummy.o
>> efi/buildid.o -o
>> /usr/local/src/xen-4.8.0/xen/.xen.efi.0xffff82d0c0000000.0 && :
>>       efi/buildid.o: file not recognized: File format is ambiguous
>>       efi/buildid.o: matching formats: coff-x86-64 pe-x86-64
> Hmm, at the first glance I'd call this a binutils bug: When talking
> about an object file, it's necessarily COFF and never PE. But I'd
> have to study their logic first to be certain. What binutils version
> are you using, and what's the target list e.g. objcopy lists at the
> end of its --help output?
>
> Jan
>
Jan -

1) bintuils version: 2.25.1-r1

     jlpoole@zeta /boot/efi $ eix binutils -I
     [I] sys-devel/binutils
          Available versions:
          ...
          Installed versions:  2.25.1-r1(2.25.1)(06:01:52 AM 
11/12/2016)(cxx multitarget nls zlib -static-libs -test -vanilla)
          Homepage:            https://sourceware.org/binutils/
          Description:         Tools necessary to build programs

2) target list from the output of "objcopy --help" is located at:
      http://napadata.net/paste/view/6ebf2472

Thank you,

John

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Re: [BUG] Xen-4.8.0 efi/buildid.o: file not recognized/Ambiguous

[John L. Poole]

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On 12/7/2016 8:51 AM, Jan Beulich wrote:
>>>> On 07.12.16 at 16:57, <jlpoole56@gmail.com> wrote:
>> I did the the following:
>>
>> wget https://downloads.xenproject.org/release/xen/4.8.0/xen-4.8.0.tar.gz
>> tar -xvzf xen-4.8.0.tar.gz
>> cd /usr/local/src/xen-4.8.0
>> ./configure
>>
>> The config.log is available at: http://napadata.net/paste/view/9e7faf3d
>>
>>
>> make
>>
>>      ...
>>       mv -f .efi.lds.d.new .efi.lds.d
>>       gcc -Wall -Werror -Wstrict-prototypes -O2 -fomit-frame-pointer
>> -fno-strict-aliasing -Wdeclaration-after-statement -g -o efi/mkreloc
>> efi/mkreloc.c
>>       ld -mi386pep --subsystem=10 --image-base=0xffff82d080000000
>> --stack=0,0 --heap=0,0 --strip-debug --section-alignment=0x200000
>> --file-alignment=0x20 --major-image-version=4 --minor-image-version=8
>> --major-os-version=2 --minor-os-version=0 --major-subsystem-version=2
>> --minor-subsystem-version=0 --build-id=sha1 -T efi.lds -N prelink-efi.o
>> efi/relocs-dummy.o /usr/local/src/xen-4.8.0/xen/common/symbols-dummy.o
>> efi/buildid.o -o
>> /usr/local/src/xen-4.8.0/xen/.xen.efi.0xffff82d080000000.0 &&   ld
>> -mi386pep --subsystem=10 --image-base=0xffff82d0c0000000 --stack=0,0
>> --heap=0,0 --strip-debug --section-alignment=0x200000
>> --file-alignment=0x20 --major-image-version=4 --minor-image-version=8
>> --major-os-version=2 --minor-os-version=0 --major-subsystem-version=2
>> --minor-subsystem-version=0 --build-id=sha1 -T efi.lds -N prelink-efi.o
>> efi/relocs-dummy.o /usr/local/src/xen-4.8.0/xen/common/symbols-dummy.o
>> efi/buildid.o -o
>> /usr/local/src/xen-4.8.0/xen/.xen.efi.0xffff82d0c0000000.0 && :
>>       efi/buildid.o: file not recognized: File format is ambiguous
>>       efi/buildid.o: matching formats: coff-x86-64 pe-x86-64
> Hmm, at the first glance I'd call this a binutils bug: When talking
> about an object file, it's necessarily COFF and never PE. But I'd
> have to study their logic first to be certain. What binutils version
> are you using, and what's the target list e.g. objcopy lists at the
> end of its --help output?
>
> Jan
>

I updated my binutils to 2.27 and I successfully completed "make". Thank 
you.

John

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Re: [BUG] Xen-4.8.0 efi/buildid.o: file not recognized/Ambiguous

[Håkon Alstadheim]

Den 08. des. 2016 20:35, skrev John L. Poole:
> 
> 
> On 12/7/2016 8:51 AM, Jan Beulich wrote:
>>>>> On 07.12.16 at 16:57, <jlpoole56@gmail.com> wrote:
>>> I did the the following:
>>>
>>> wget https://downloads.xenproject.org/release/xen/4.8.0/xen-4.8.0.tar.gz 
>>> tar -xvzf xen-4.8.0.tar.gz
>>> cd /usr/local/src/xen-4.8.0
>>> ./configure
>>>
>>> The config.log is available at: http://napadata.net/paste/view/9e7faf3d 
>>>
>>>
>>> make
>>>
>>>     ...
>>>      mv -f .efi.lds.d.new .efi.lds.d
>>>      gcc -Wall -Werror -Wstrict-prototypes -O2 -fomit-frame-pointer 
>>> -fno-strict-aliasing -Wdeclaration-after-statement -g -o efi/mkreloc 
>>> efi/mkreloc.c
>>>      ld -mi386pep --subsystem=10 --image-base=0xffff82d080000000 
>>> --stack=0,0 --heap=0,0 --strip-debug --section-alignment=0x200000 
>>> --file-alignment=0x20 --major-image-version=4 --minor-image-version=8 
>>> --major-os-version=2 --minor-os-version=0 --major-subsystem-version=2 
>>> --minor-subsystem-version=0 --build-id=sha1 -T efi.lds -N prelink-efi.o 
>>> efi/relocs-dummy.o /usr/local/src/xen-4.8.0/xen/common/symbols-dummy.o 
>>> efi/buildid.o -o 
>>> /usr/local/src/xen-4.8.0/xen/.xen.efi.0xffff82d080000000.0 &&   ld 
>>> -mi386pep --subsystem=10 --image-base=0xffff82d0c0000000 --stack=0,0 
>>> --heap=0,0 --strip-debug --section-alignment=0x200000 
>>> --file-alignment=0x20 --major-image-version=4 --minor-image-version=8 
>>> --major-os-version=2 --minor-os-version=0 --major-subsystem-version=2 
>>> --minor-subsystem-version=0 --build-id=sha1 -T efi.lds -N prelink-efi.o 
>>> efi/relocs-dummy.o /usr/local/src/xen-4.8.0/xen/common/symbols-dummy.o 
>>> efi/buildid.o -o 
>>> /usr/local/src/xen-4.8.0/xen/.xen.efi.0xffff82d0c0000000.0 && :
>>>      efi/buildid.o: file not recognized: File format is ambiguous
>>>      efi/buildid.o: matching formats: coff-x86-64 pe-x86-64
>> Hmm, at the first glance I'd call this a binutils bug: When talking
>> about an object file, it's necessarily COFF and never PE. But I'd
>> have to study their logic first to be certain. What binutils version
>> are you using, and what's the target list e.g. objcopy lists at the
>> end of its --help output?
>>
>> Jan
>>
> 
> I updated my binutils to 2.27 and I successfully completed "make". 
> Thank you.
> 

I have the same problem with binutils-2.27 on gentoo. Worked around it
by adding " -b coff-x86-64 " to the ld command line before $(note_file).

Running with  gentoo-sources-4.8.12-gentoo-r1 as dom0 kernel. Compiled
with gcc set to x86_64-pc-linux-gnu-5.4.0 .


Apart from that seems to be running nicely, in early test :-)


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Re: [BUG] Xen-4.8.0 efi/buildid.o: file not recognized/Ambiguous

[Jan Beulich]

>>> On 08.12.16 at 20:35, <jlpoole56@gmail.com> wrote:

> 
> On 12/7/2016 8:51 AM, Jan Beulich wrote:
>>>>> On 07.12.16 at 16:57, <jlpoole56@gmail.com> wrote:
>>> I did the the following:
>>>
>>> wget https://downloads.xenproject.org/release/xen/4.8.0/xen-4.8.0.tar.gz 
>>> tar -xvzf xen-4.8.0.tar.gz
>>> cd /usr/local/src/xen-4.8.0
>>> ./configure
>>>
>>> The config.log is available at: http://napadata.net/paste/view/9e7faf3d 
>>>
>>>
>>> make
>>>
>>>      ...
>>>       mv -f .efi.lds.d.new .efi.lds.d
>>>       gcc -Wall -Werror -Wstrict-prototypes -O2 -fomit-frame-pointer
>>> -fno-strict-aliasing -Wdeclaration-after-statement -g -o efi/mkreloc
>>> efi/mkreloc.c
>>>       ld -mi386pep --subsystem=10 --image-base=0xffff82d080000000
>>> --stack=0,0 --heap=0,0 --strip-debug --section-alignment=0x200000
>>> --file-alignment=0x20 --major-image-version=4 --minor-image-version=8
>>> --major-os-version=2 --minor-os-version=0 --major-subsystem-version=2
>>> --minor-subsystem-version=0 --build-id=sha1 -T efi.lds -N prelink-efi.o
>>> efi/relocs-dummy.o /usr/local/src/xen-4.8.0/xen/common/symbols-dummy.o
>>> efi/buildid.o -o
>>> /usr/local/src/xen-4.8.0/xen/.xen.efi.0xffff82d080000000.0 &&   ld
>>> -mi386pep --subsystem=10 --image-base=0xffff82d0c0000000 --stack=0,0
>>> --heap=0,0 --strip-debug --section-alignment=0x200000
>>> --file-alignment=0x20 --major-image-version=4 --minor-image-version=8
>>> --major-os-version=2 --minor-os-version=0 --major-subsystem-version=2
>>> --minor-subsystem-version=0 --build-id=sha1 -T efi.lds -N prelink-efi.o
>>> efi/relocs-dummy.o /usr/local/src/xen-4.8.0/xen/common/symbols-dummy.o
>>> efi/buildid.o -o
>>> /usr/local/src/xen-4.8.0/xen/.xen.efi.0xffff82d0c0000000.0 && :
>>>       efi/buildid.o: file not recognized: File format is ambiguous
>>>       efi/buildid.o: matching formats: coff-x86-64 pe-x86-64
>> Hmm, at the first glance I'd call this a binutils bug: When talking
>> about an object file, it's necessarily COFF and never PE. But I'd
>> have to study their logic first to be certain. What binutils version
>> are you using, and what's the target list e.g. objcopy lists at the
>> end of its --help output?
> 
> I updated my binutils to 2.27 and I successfully completed "make". Thank 
> you.

Good to know. Is that newer version similarly configured, or is
your success simply because of the two conflicting target types
not being there at the same time?

Jan


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Re: [BUG] Xen-4.8.0 efi/buildid.o: file not recognized/Ambiguous

[John L. Poole]

On 12/9/2016 12:03 AM, Jan Beulich wrote:
>>>> On 08.12.16 at 20:35, <jlpoole56@gmail.com> wrote:
>> On 12/7/2016 8:51 AM, Jan Beulich wrote:
>>>>>> On 07.12.16 at 16:57, <jlpoole56@gmail.com> wrote:
>>>> I did the the following:
>>>>
>>>> wget https://downloads.xenproject.org/release/xen/4.8.0/xen-4.8.0.tar.gz
>>>> tar -xvzf xen-4.8.0.tar.gz
>>>> cd /usr/local/src/xen-4.8.0
>>>> ./configure
>>>>
>>>> The config.log is available at: http://napadata.net/paste/view/9e7faf3d
>>>>
>>>>
>>>> make
>>>>
>>>>       ...
>>>>        mv -f .efi.lds.d.new .efi.lds.d
>>>>        gcc -Wall -Werror -Wstrict-prototypes -O2 -fomit-frame-pointer
>>>> -fno-strict-aliasing -Wdeclaration-after-statement -g -o efi/mkreloc
>>>> efi/mkreloc.c
>>>>        ld -mi386pep --subsystem=10 --image-base=0xffff82d080000000
>>>> --stack=0,0 --heap=0,0 --strip-debug --section-alignment=0x200000
>>>> --file-alignment=0x20 --major-image-version=4 --minor-image-version=8
>>>> --major-os-version=2 --minor-os-version=0 --major-subsystem-version=2
>>>> --minor-subsystem-version=0 --build-id=sha1 -T efi.lds -N prelink-efi.o
>>>> efi/relocs-dummy.o /usr/local/src/xen-4.8.0/xen/common/symbols-dummy.o
>>>> efi/buildid.o -o
>>>> /usr/local/src/xen-4.8.0/xen/.xen.efi.0xffff82d080000000.0 &&   ld
>>>> -mi386pep --subsystem=10 --image-base=0xffff82d0c0000000 --stack=0,0
>>>> --heap=0,0 --strip-debug --section-alignment=0x200000
>>>> --file-alignment=0x20 --major-image-version=4 --minor-image-version=8
>>>> --major-os-version=2 --minor-os-version=0 --major-subsystem-version=2
>>>> --minor-subsystem-version=0 --build-id=sha1 -T efi.lds -N prelink-efi.o
>>>> efi/relocs-dummy.o /usr/local/src/xen-4.8.0/xen/common/symbols-dummy.o
>>>> efi/buildid.o -o
>>>> /usr/local/src/xen-4.8.0/xen/.xen.efi.0xffff82d0c0000000.0 && :
>>>>        efi/buildid.o: file not recognized: File format is ambiguous
>>>>        efi/buildid.o: matching formats: coff-x86-64 pe-x86-64
>>> Hmm, at the first glance I'd call this a binutils bug: When talking
>>> about an object file, it's necessarily COFF and never PE. But I'd
>>> have to study their logic first to be certain. What binutils version
>>> are you using, and what's the target list e.g. objcopy lists at the
>>> end of its --help output?
>> I updated my binutils to 2.27 and I successfully completed "make". Thank
>> you.
> Good to know. Is that newer version similarly configured, or is
> your success simply because of the two conflicting target types
> not being there at the same time?
>
> Jan
>
Jan, you raised an interesting issue. Now when I try to compile
Xen 4.8.0 using Gentoo's portage command "emerge", I'm getting the error
I originally had, "File format is ambiguous", that brought me to this
list.  Thinking it was because I had both versions of binutils on
my system (slotted), I assumed Gentoo's emerge was failing because it
was invoking the earlier version of binutils.

So I removed the earlier version of binutils (2.25.1-r10)
leaving only binutils 2.27 in my environment. Still, when I went
to compile using Portage with:

      USE="efi"  emerge app-emulation/xen

I ran into the same problem: "File format is ambiguous".  This bug
is documented at:

    Gentoo  Bug 602052 - app-emulation/xen-4.8.0 Makefile:141: recipe 
for target fails

at

    https://bugs.gentoo.org/show_bug.cgi?id=602052

I then returned to /usr/local/src/xen-4.8.0 and executed:

     make world

which would clean and try again.  Now I've encountered the same error.

Previously, I had performed make, encountered the error and came to this
list.  I then added binutils 2.27 and did "make" again (no clean)
and the build succeeded.  So I am guessing that some files from
my first attempt at make were cached and on the second attempt (without 
clean) the problem
did not occur.  Now that I have done a "make world", I tried "make"
again to simulate the events up to my success at buildling the first time.
This time I was stopped at the same point: "File format is ambiguous".

Now I am at a loss to understand why I was able to build one time, but
not now.

The log files of the sessions are as follows:

Outside Gentoo Portage:
     "make world":
          http://napadata.net/paste/view/eb7c1d97

     "make" 2nd:
         http://napadata.net/paste/view/6463bc22

Gentoo:
     USE="efi"  emerge app-emulation/xen:
         http://napadata.net/paste/view/0fb9f9fd

I did use "-j9" to speed things up.

- John




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Re: [BUG] Xen-4.8.0 efi/buildid.o: file not recognized/Ambiguous

[Jan Beulich]

>>> On 07.12.16 at 16:57, <jlpoole56@gmail.com> wrote:
>      efi/buildid.o: file not recognized: File format is ambiguous
>      efi/buildid.o: matching formats: coff-x86-64 pe-x86-64

Just fyi: After some analysis of the binutils sources I have come to
the conclusion that this needs help from the binutils folks. I've just
sent
https://sourceware.org/ml/binutils/2016-12/msg00374.html
to see if they have any advice.

Jan


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Re: [BUG] Xen-4.8.0 efi/buildid.o: file not recognized/Ambiguous

[Doug Goldstein]

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On 12/22/16 8:46 AM, Jan Beulich wrote:
>>>> On 07.12.16 at 16:57, <jlpoole56@gmail.com> wrote:
>>      efi/buildid.o: file not recognized: File format is ambiguous
>>      efi/buildid.o: matching formats: coff-x86-64 pe-x86-64
> 
> Just fyi: After some analysis of the binutils sources I have come to
> the conclusion that this needs help from the binutils folks. I've just
> sent
> https://sourceware.org/ml/binutils/2016-12/msg00374.html
> to see if they have any advice.
> 

Has anything come of this? I'm not sure how we can use match_priority or
if they're saying they need to make changes to binutils. At this point
I'm not able to compile Xen myself without local hackery.

-- 
Doug Goldstein


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Re: [BUG] Xen-4.8.0 efi/buildid.o: file not recognized/Ambiguous

[Jan Beulich]

>>> On 05.01.17 at 16:09, <cardoe@cardoe.com> wrote:
> On 12/22/16 8:46 AM, Jan Beulich wrote:
>>>>> On 07.12.16 at 16:57, <jlpoole56@gmail.com> wrote:
>>>      efi/buildid.o: file not recognized: File format is ambiguous
>>>      efi/buildid.o: matching formats: coff-x86-64 pe-x86-64
>> 
>> Just fyi: After some analysis of the binutils sources I have come to
>> the conclusion that this needs help from the binutils folks. I've just
>> sent
>> https://sourceware.org/ml/binutils/2016-12/msg00374.html 
>> to see if they have any advice.
>> 
> 
> Has anything come of this? I'm not sure how we can use match_priority or
> if they're saying they need to make changes to binutils. At this point
> I'm not able to compile Xen myself without local hackery.

As said on irc, I don't see how the responses we've got so far allow
for progress towards a resolution. However, I also don't see the
value of building binutils in this way, as COFF objects - afaict - would
simply be unusable (without command line override) for anyone else
too. So besides the option of us hacking around the issue, I'd like
distro maintainers of binutils packages to consider correcting their
./configure options, to produce something that's actually usable.

Jan


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