Date: Mon, 8 Dec 2014 02:04:06 -0800 From: Garrett Cooper <yaneurabeya@gmail.com> To: Alfred Perlstein <alfred@freebsd.org> Cc: FreeBSD Hackers <freebsd-hackers@freebsd.org> Subject: Re: cross installing freebsd? Message-ID: <26F569E9-3E70-4CE7-810F-5427FF1C7EA0@gmail.com> In-Reply-To: <613884DA-F978-4D9F-9E37-D39581EFEA61@freebsd.org> References: <5483AE21.8090306@freebsd.org> <D925B118-113F-42CB-8F1F-6B9087F0CF4D@gmail.com> <613884DA-F978-4D9F-9E37-D39581EFEA61@freebsd.org>
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On Dec 7, 2014, at 21:48, Alfred Perlstein <alfred@freebsd.org> wrote:
>> Hi Alfred,
>> Reading your examples...
>> 1. I=92m wondering if we should formalize CROSS_BUILD_TESTING in =
Makefile.inc1:
>>=20
>> 188 .if ${MACHINE} =3D=3D ${TARGET} && ${MACHINE_ARCH} =3D=3D =
${TARGET_ARCH} && !defined(CROSS_BUILD_TESTING)
>> 189 OBJTREE=3D ${MAKEOBJDIRPREFIX}
>> 190 .else
>> 191 OBJTREE=3D ${MAKEOBJDIRPREFIX}/${TARGET}.${TARGET_ARCH}
>> 192 .endif
>>=20
>> 2. MAKEWHATIS seems like it should be added to ITOOLS. Do you =
agree?
>> 3. Seems like strip should be added to ITOOLS if =
CROSS_BUILD_TESTING is defined (or at the very least LOCAL_ITOOLS).
>> 4. Why did you need to explicitly define the path to INSTALL?
>> Thanks!
>=20
> To be honest I have a gist as to what you're saying but I think the =
build is suffering from shibboleth-itis. Meaning it's not serviceable =
unless you're intimately familiar with it=85
Right. I didn=92t know about all of these magic things until I started =
reading the Makefiles :).
> I *guess* that ITOOLS or maybe LOCAL_ITOOLS means programs needed to =
installworld/installkernel?
Yes. Basically for things that can be replaced while make installworld =
is run, or as Makefile.inc1 says=85
"# Required install tools to be saved in a scratch dir for safety.=94
All the libraries for the tools are backed up so if the tools get =
replaced while make distributeworld/installworld is running, your system =
won=92t be hosed (that=92s why make installworld works for me the =
majority of the time, if cp gets replaced and ABI changes =97 not =
always, but oftentimes).
> If so, then yes, makewhatis needs to be added to that.
Review opened for that issue: https://reviews.freebsd.org/D1280
> As far as everything else written:
> no idea what "CROSS_BUILD_TESTING" means, it's not documented anywhere =
I can see in the makefile.
It=92s something that ru@ introduced (probably to do comparisons between =
architectures). I haven=92t quite tracked down why make tinderbox works =
with TARGET_ARCH/TARGET set to the host values, but I=92ll probably =
figure it out soon.
> I can't decode if there will be a target that "just works" for doing a =
cross-install, will there be? What will it be named and how will people =
invoke it?
>=20
> Can we have cross-installworld and cross-installkernel targets please?
Setting TARGET/TARGET_ARCH should be sufficient in an ideal world. =
Jumping through hoops to do this with a myriad of variables which should =
be automatically determined via sane defaults seems wrong/unusable=85 =
there shouldn=92t be a reason for why we need to introduce autoconf =
variable style hell for building/installing world, unless someone is =
intentionally skating around sane defaults.
I think that creating more custom targets will only complicate/muddle =
the build process, and create more potential for bugs like the one that =
I just addressed with xdev.
Thanks!
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