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Date:      Thu, 12 Mar 2015 13:42:38 -0700
From:      Mark Millard <markmi@dsl-only.net>
To:        Warner Losh <imp@bsdimp.com>
Cc:        freebsd-toolchain@freebsd.org, FreeBSD PowerPC ML <freebsd-ppc@freebsd.org>
Subject:   Re: On powerpc 11.0-CURRENT CROSS_TOOLCHAIN=powerpc64-gcc fails: clang-tblgen use attempted before it exists
Message-ID:  <E3F9CFA6-04C2-482B-A649-035C41C0113C@dsl-only.net>
In-Reply-To: <E053A305-8925-4CDB-B7D3-A632CB6BBE3D@bsdimp.com>
References:  <81E69CED-2977-4146-A1DA-B199FDAFE146@dsl-only.net> <20150130005619.GA11558@ivaldir.etoilebsd.net> <89F97E94-AB9F-46C0-9AA2-C4D0680D64E7@dsl-only.net> <60F1C8B5-8621-452B-A6A3-DEE4B48B848D@dsl-only.net> <E053A305-8925-4CDB-B7D3-A632CB6BBE3D@bsdimp.com>

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Warner L. wrote about my attempt to use =
rpc64-xtoolchain-gcc/powerpc64-gcc in a powerpc (non-64) context that =
has no clang built:

> Trying WITH_CLANG=3Dt ...

So I did...

make WITH_CLANG=3Dt CROSS_TOOLCHAIN=3Dpowerpc64-gcc toolchain =
KERNCONF=3DGENERICvtsc TARGET=3Dpowerpc TARGET_ARCH=3Dpowerpc

This results in a different failure (cc1plus not understanding the =
-std=3Dc++11 option that it ends up being given):

--------------------------------------------------------------
>>> stage 1.2: bootstrap tools
--------------------------------------------------------------
...
mkdep -f .depend -a    =
-I/usr/src/lib/clang/libllvmsupport/../../../contrib/llvm/include =
-I/usr/src/lib/clang/libllvmsupport/../../../contrib/llvm/tools/clang/incl=
ude =
-I/usr/src/lib/clang/libllvmsupport/../../../contrib/llvm/lib/Support =
-I. =
-I/usr/src/lib/clang/libllvmsupport/../../../contrib/llvm/../../lib/clang/=
include -DLLVM_ON_UNIX -DLLVM_ON_FREEBSD -D__STDC_LIMIT_MACROS =
-D__STDC_CONSTANT_MACROS =
-DLLVM_DEFAULT_TARGET_TRIPLE=3D\"powerpc-unknown-freebsd11.0\" =
-DLLVM_HOST_TRIPLE=3D\"powerpc-unknown-freebsd11.0\" =
-DDEFAULT_SYSROOT=3D\"\" -I/usr/obj/usr/src/tmp/legacy/usr/include  =
-std=3Dc++11      =
/usr/src/lib/clang/libllvmsupport/../../../contrib/llvm/lib/Support/APFloa=
t.cpp
... <OMITTING MANY .cpp's> ... =
/usr/src/lib/clang/libllvmsupport/../../../contrib/llvm/lib/Support/raw_os=
tream.cpp=20
cc1plus: error: unrecognized command line option "-std=3Dc++11"
cc1plus: error: unrecognized command line option "-std=3Dc++11"
cc1plus: error: unrecognized command line option "-std=3Dc++11"
...

=3D=3D=3D
Mark Millard
markmi at dsl-only.net

On 2015-Mar-12, at 01:24 PM, Warner Losh <imp at bsdimp.com> wrote:

Sorry to top post, but try adding WITH_CLANG=3Dt

Warner

> On Mar 13, 2015, at 4:18 AM, Mark Millard <markmi@dsl-only.net> wrote:
>=20
> Basic context:
>=20
> $ freebsd-version -ku; uname -a
> 11.0-CURRENT
> 11.0-CURRENT
> FreeBSD FBSDG4C0 11.0-CURRENT FreeBSD 11.0-CURRENT #0 r279514M: Mon =
Mar  9 22:24:27 PDT 2015     =
root@FBSDG4S0:/usr/obj/usr/srcC/sys/GENERICvtsc-NODEBUG  powerpc
> $ svnlite info
> Path: .
> Working Copy Root Path: /usr/ports
> URL: https://svn0.us-west.freebsd.org/ports/head
> Relative URL: ^/head
> Repository Root: https://svn0.us-west.freebsd.org/ports
> Repository UUID: 35697150-7ecd-e111-bb59-0022644237b5
> Revision: 380683
> Node Kind: directory
> Schedule: normal
> Last Changed Author: demon
> Last Changed Rev: 380683
> Last Changed Date: 2015-03-07 03:31:11 -0800 (Sat, 07 Mar 2015)
>=20
> I bootstrapped into 11.0-CURRENT from 10.1-STABLE but misunderstood =
UPDATING for the combination of starting from 10.1 on powerpc/powerpc64 =
and ended up without clang for both powerpc and powerpc64 before I =
figure that out.
>=20
> While powerpc64-gcc (and so powerpc64-xtoolchain-gcc) fails to build =
when portmaster'd on powerpc64 it does build on powerpc.
>=20
> So I portmaster'd powerpc64-xtoolchain-gcc in the powerpc (non-64) =
11.0-CURRENT context to attempt a "cross" compile back to powerpc...
>=20
>=20
>=20
> The problem:
> (Or is the below attempt a form of abuse of powerpc64-xtoolchain-gcc?)
> (Remember: no clang exists beforehand.)
>=20
> For...
>=20
> make CROSS_TOOLCHAIN=3Dpowerpc64-gcc toolchain KERNCONF=3DGENERICvtsc =
TARGET=3Dpowerpc TARGET_ARCH=3Dpowerpc
>=20
> or
>=20
> make CROSS_TOOLCHAIN=3Dpowerpc64-gcc buildworld buildkernel =
KERNCONF=3DGENERICvtsc TARGET=3Dpowerpc TARGET_ARCH=3Dpowerpc
>=20
> Either way the result fails to complete by attempting to use =
clang-tblgen when it does not exist (yet?):
>=20
>> ...
>> --------------------------------------------------------------
>>>>> stage 1.2: bootstrap tools
>> --------------------------------------------------------------
>> ...
>> =3D=3D=3D> lib/clang/libllvmx86instprinter (buildincludes)
>> =3D=3D=3D> lib/clang/libllvmx86utils (buildincludes)
>> =3D=3D=3D> lib/clang/include (buildincludes)
>> clang-tblgen -gen-arm-neon  -d arm_neon.d -o arm_neon.h  =
/usr/src/lib/clang/include/../../../contrib/llvm/tools/clang/include/clang=
/Basic/arm_neon.td
>> make[6]: exec(clang-tblgen) failed (No such file or directory)
>> *** Error code 1
>>=20
>> Stop.
>> make[6]: stopped in /usr/src/lib/clang/include
>> *** Error code 1
>>=20
>> Stop.
>> make[5]: stopped in /usr/src/lib/clang
>> *** Error code 1
>>=20
>> Stop.
>> make[4]: stopped in /usr/src/lib
>> *** Error code 1
>>=20
>> Stop.
>> make[3]: stopped in /usr/src/lib
>> *** Error code 1
>>=20
>> Stop.
>> make[2]: stopped in /usr/src
>> *** Error code 1
>>=20
>> Stop.
>> make[1]: stopped in /usr/src
>> *** Error code 1
>>=20
>> Stop.
>> make: stopped in /usr/src
>=20
>=20
>=20
> Even if overall this style of bootstrap should not work it seems odd =
to me that clang-tblgen use was attempted before it was built.
>=20
> =3D=3D=3D
> Mark Millard
> markmi at dsl-only.net
>=20
> _______________________________________________
> freebsd-toolchain@freebsd.org mailing list
> http://lists.freebsd.org/mailman/listinfo/freebsd-toolchain
> To unsubscribe, send any mail to =
"freebsd-toolchain-unsubscribe@freebsd.org"





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