Re: [Qemu-ppc] [Qemu-devel] [PATCH 1/1] Support ppc64le binfmt registration

[Peter Maydell]

[adding qemu-ppc]

On 27 August 2014 19:45, Serge E. Hallyn <address@hidden> wrote:
> Quoting Peter Maydell (address@hidden):
>> On 27 August 2014 18:55, Serge E. Hallyn <address@hidden> wrote:
>> > This is a part of a patch proposed by jaejunh at
>> > https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1358268
>> > which enables running ppc64le binaries through qemu-user.
>>
>> I'm confused -- wouldn't these be handled by the existing
>> "ppc64le" support?

> It looks to me like the point was to add a TARGET_ABI32=y
> version (and I dunno, something about CONFIG_LIBDECNUMBER=y
> for 32-bit).

Wouldn't that be a "ppc64leabi32" target? (something of a
mouthful, admittedly). In any case I wouldn't expect it
to be used by a ppc64le chroot as you suggest. Conversely,
a "ppcle" ought to be a 32-bit little endian PPC, not a "32
bit ABI on 64 bit CPUs" variant. Anyway, this should be driven
by "what are the ABIs that the kernel provides", on which
question I defer to the PPC folks.

(It looks like some of this confusion stems from the original
bug report being actually two separate bugs. The ppc64le
related part is purely "ubuntu isn't registering the binfmt",
which isn't an upstream issue at all.)

thanks
-- PMM