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    SubjectRe: [PATCH] tile: set KBUILD_DEFCONFIG to point at a real config file
    On 5/18/2012 11:18 PM, Paul Gortmaker wrote:
    > [Re: [PATCH] tile: set KBUILD_DEFCONFIG to point at a real config file] On 18/05/2012 (Fri 21:08) Chris Metcalf wrote:
    >
    >> On 5/18/2012 6:46 PM, Paul Gortmaker wrote:
    >>> To fix this:
    >>>
    >>> ~/git/linux-head$ make defconfig
    >>> *** Default configuration is based on 'tile_defconfig'
    >>> ***
    >>> *** Can't find default configuration "arch/tile/configs/tile_defconfig"!
    >>> ***
    >>> make[1]: *** [defconfig] Error 1
    >>> make: *** [defconfig] Error 2
    >>>
    >>> There is no need to use $ARCH in the tile/Makefile, since if we are
    >>> in there, we know ARCH must be tile. Use the GX as the defconfig,
    >>> as that is what is used in linux-next.
    >> No, the odd thing about arch/tile is that you must build it either as
    >> ARCH=tilepro or ARCH=tilegx. There is no ARCH=tile. So the $ARCH piece is
    >> actually correct.
    > That is interesting, since this is what I've been doing on any of my
    > tile builds right from the beginning.
    >
    > PATH=/home/paul/tc/tilegx-x86_64/bin:$PATH
    > export CROSS_COMPILE=tilegx-unknown-linux-gnu-
    > export ARCH=tile
    >
    > ...and it works. Aside from the defconfig thing I just reported.
    > It is the same boilerplate type of env. settings I use for arm, mips
    > and whatever other random thing I'm building. I'm pretty sure I'm
    > not the only one who would make this assumption. Actually I *know*
    > I am not the only one. Here is a snippet from linux-next build:
    >
    > /scratch/kisskb/prod/kisskb/kisskb3/backend/makewrap.py ARCH=tile
    > O=/scratch/kisskb/prod/kisskb/kisskb3/backend/build/linux-next_tilegx_defconfig_tilegx
    > CROSS_COMPILE=/opt/cross/gcc-4.6.2-nolibc/tilegx-linux/bin/tilegx-linux-
    > tilegx_defconfig
    >
    > So maybe some validation on the ARCH value is in order if you really
    > don't want people doing this?

    Yes. I think what I will do is "promote" ARCH=tile to ARCH=tilegx in
    arch/tile/Makefile as the "default" Tilera architecture. Thanks for the
    suggestion - I've been too close to this issue to actually notice it :-)

    --
    Chris Metcalf, Tilera Corp.
    http://www.tilera.com



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