Package: qemu-user-binfmt
Version: 1:2.1+dfsg-12+deb8u1
This likely affects all releases and other architectures.
I was helping a user on IRC #debian who was having problems completing the
build of a PPC64LE chroot on amd64.
The specific problem was early failure of "/debootstrap/debootstrap
--second-stage" with:
/sbin/ldconfig.real: Syntax error: "(" unexpected
Using strace I eventually noticed that the ELF header of "/sbin/ldconfg.real" did not
match the magic defined in "/usr/share/binfmts/qemu-ppc64le".
The specific issue appears to be that "ldconfig.real" is statically linked and
byte offset 0x07 is 0x03, which doesn't match the binfmt magic.
"debian/binfmt-update-in" currently contains:
ppc64le_magic='\x7fELF\x02\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x15\x00'
ppc64le_mask='\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\x00'
but it should have mask byte offset 0x07 = 0xfc:
ppc64le_magic='\x7fELF\x02\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x15\x00'
ppc64le_mask='\xff\xff\xff\xff\xff\xff\xff\xfc\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\x00'
^^^
A manual workaround:
# copy this to /usr/share/binfmts/qemu-ppc64le
# install it using "sudo update-binfmts --import qemu-ppc64le
package qemu-user-static
interpreter /usr/bin/qemu-ppc64le-static
credentials yes
offset 0
magic \x7fELF\x02\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x15\x00
mask
\xff\xff\xff\xff\xff\xff\xff\xfc\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\x00
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