Skip site navigation (1)Skip section navigation (2)
Date:      Wed, 4 Nov 2015 22:01:29 -0800
From:      Adrian Chadd <adrian@freebsd.org>
To:        "freebsd-arch@freebsd.org" <freebsd-arch@freebsd.org>,  "freebsd-mips@freebsd.org" <freebsd-mips@freebsd.org>
Subject:   Fwd: COMPILER_TYPE and installworld
Message-ID:  <CAJ-Vmoni7rBBP_ePU2-W11FTOunRCWLSeWYe1i9FxyoUUdd10g@mail.gmail.com>
In-Reply-To: <CAJ-VmokUOMFMF2LE89Uc9unmmBwGusMzU_r%2BF=GKMe0c1g=DMA@mail.gmail.com>
References:  <CAJ-VmomkWx=GMFGMexanH892iFoGQUFU8jo=qTvYnqp3bQoTDA@mail.gmail.com> <CAJ-VmokbRp8w9_3CrEcHVn%2Bnrhfs3TAF01JrNPptoVzTB30LTA@mail.gmail.com> <CAJ-VmokUOMFMF2LE89Uc9unmmBwGusMzU_r%2BF=GKMe0c1g=DMA@mail.gmail.com>

next in thread | previous in thread | raw e-mail | index | archive | help
Hi,

I started digging into why "make installworld" doesn't work when using
the external toolchain support using CROSS_TOOLCHAIN= support. This is
one of the big hurdles to just using 100% external toolchain using
bapt's CROSS_TOOLCHAIN support.

The TL;DR seems to be:

* buildworld/buildkernel: CC gets set right; PATH doesn't include
/usr/bin:/usr/sbin
* installkernel: MACHINE is set, CC is not set (so it's 'cc') and PATH
includes /usr/bin:/usr/sbin
* installworld: MACHINE is set, CC is not set, PATH doesn't include
/usr/bin:/usr/sbin

The result is that during installkernel it finds 'cc' in /usr/bin and
detects it as clang, even though I'm doing a mips-gcc build. During
installworld it fails because it can't find 'cc'.

So! In the short term, is there any way that during
installworld/installkernel we can also set CC, etc appropriately?
Otherwise we're either using the wrong compiler logic/version
(installkernel) or we're just plain not going to work (installworld.)

Also - why is PATH including /usr/bin:/usr/sbin when doing
installkernel, but not installworld?

To reproduce:

* pkg install mips-gcc mips-xtoolchain-gcc mips-binutils
* env MAKEOBJDIRPREFIX=/tmp/mips-obj make CROSS_TOOLCHAIN=mips-gcc
TARGET=mips TARGET_ARCH=mips TARGET_CPUTYPE=mips32
DESTDIR=/tmp/mips-root -j 4 buildworld buildkernel installworld
installkernel KERNCONF=MALTA

...

make[4]: "/usr/home/adrian/work/freebsd/head-embedded-gcc5/src/share/mk/bsd.compiler.mk"
line 50: warning: "machine: mips, X_COMPILER_TYPE: , CC: cc"
make[4]: "/usr/home/adrian/work/freebsd/head-embedded-gcc5/src/share/mk/bsd.compiler.mk"
line 96: warning: "Finished; COMPILER_TYPE=clang,
COMPILER_VERSION=30700, COMPILER_FEATURES=c++11"

.. so in the installkernel setup, the PATH includes /usr/bin which
means 'cc' works, and thus it's detecting the compiler as clang even
though we're supposed to be using mips-gcc.

in the installworld setup, there's no /usr/bin in PATH, so it can't find cc.

buildworld is ok:

make[6]: "/usr/home/adrian/work/freebsd/head-embedded-gcc5/src/share/mk/bsd.compiler.mk"
line 50: warning: "machine: amd64, X_COMPILER_TYPE: , CC: cc"
make[6]: "/usr/home/adrian/work/freebsd/head-embedded-gcc5/src/share/mk/bsd.compiler.mk"
line 96: warning: "Finished; COMPILER_TYPE=clang,
COMPILER_VERSION=30700, COMPILER_FEATURES=c++11"
===> gnu/usr.bin/groff/src/devices/grops (obj)

.. for the local stuff, and:

make[5]: "/usr/home/adrian/work/freebsd/head-embedded-gcc5/src/share/mk/bsd.compiler.mk"
line 50: warning: "machine: mips, X_COMPILER_TYPE: , CC:
/usr/local/bin/mips-portbld-freebsd11.0-gcc -isystem
/home/adrian/work/freebsd/head-embedded-gcc5/src/../obj/mips_ap//mips.mips/usr/home/adrian/work/freebsd/head-embedded-gcc5/src/tmp/usr/include
-L/home/adrian/work/freebsd/head-embedded-gcc5/src/../obj/mips_ap//mips.mips/usr/home/adrian/work/freebsd/head-embedded-gcc5/src/tmp/usr/lib
--sysroot=/home/adrian/work/freebsd/head-embedded-gcc5/src/../obj/mips_ap//mips.mips/usr/home/adrian/work/freebsd/head-embedded-gcc5/src/tmp
-B/usr/local/mips-freebsd/bin/"
make[5]: "/usr/home/adrian/work/freebsd/head-embedded-gcc5/src/share/mk/bsd.compiler.mk"
line 96: warning: "Finished; COMPILER_TYPE=gcc,
COMPILER_VERSION=50200, COMPILER_FEATURES=c++11"

.. for the building mips stuff.

So installkernel works only "by magic" because of PATH, and CC is just
not being set right for installkernel/installworld.

ok, so what now? :)



-adrian



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?CAJ-Vmoni7rBBP_ePU2-W11FTOunRCWLSeWYe1i9FxyoUUdd10g>