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Date:      Mon, 20 Apr 2015 23:09:01 +0100
From:      Andrew Turner <andrew@fubar.geek.nz>
To:        Warner Losh <imp@bsdimp.com>
Cc:        sbruno@freebsd.org, freeBSD-arm@freebsd.org
Subject:   Re: lastest poudriere run, armv6hf target
Message-ID:  <20150420230901.666fe888@bender.Home>
In-Reply-To: <012688E4-7FB6-4807-A049-014C30BE80D4@bsdimp.com>
References:  <55316705.9020506@ignoranthack.me> <63DBA00A-509B-4B20-BA3E-07AC5F7C8885@gromit.dlib.vt.edu> <55356425.1030503@ignoranthack.me> <012688E4-7FB6-4807-A049-014C30BE80D4@bsdimp.com>

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On Mon, 20 Apr 2015 14:58:10 -0600
Warner Losh <imp@bsdimp.com> wrote:

>=20
> > On Apr 20, 2015, at 2:40 PM, Sean Bruno <sbruno@ignoranthack.me>
> > wrote:
> >=20
> > Signed PGP part
> > On 04/19/15 16:45, Paul Mather wrote:
> > > On Apr 17, 2015, at 4:03 PM, Sean Bruno <sbruno@ignoranthack.me>
> > > wrote:
> > >
> > >> http://chips.ysv.freebsd.org/build.html?mastername=3D11armv6hf-defau=
lt&
> > build=3D2015-04-13_18h44m36s
> > >>
> > >>
> > >>
> > Not bad.  This will probably be the last of the unofficial runs
> > that I
> > >> do as we are transitioning to official hardware/repos.
> > >>
> > >> sean
> > >
> > > Are these packages built on native ARM hardware via Poudriere or
> > > are they cross-built?
> > >
> > > For a while, I have been cross-building my armv6 packages on an
> > > amd64 system using Poudriere via qemu-arm-static.  Recently, I've
> > > been interested in trying armv6hf on my BeagleBone Black.  When I
> > > try to build an armv6hf jail via Poudriere it complains "Error:
> > > You need to setup an emulator with binmiscctl(8) for armv6hf".
> > >
> > > What binmiscctl signature do I need for armv6hf?
> > >
> > >
> > > Cheers,
> > >
> > > Paul.
> > >
> > >
> > >
> > >
> >=20
> > Paul:
> >=20
> > I'm using the exact same signature.
>=20
> Sadly, there=E2=80=99s no real way to tell them apart at runtime that I=
=E2=80=99ve
> found except to grovel in the symbol table for =E2=80=98soft float=E2=80=
=99. Still
> looking and hoping...

There is an elf note containing the TARGET_ARCH. You can also use the
Tag_ABI_VFP_args attribute [1].

Andrew

[1]
http://infocenter.arm.com/help/topic/com.arm.doc.ihi0045d/IHI0045D_ABI_adde=
nda.pdf



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