cross compiling

[Warner Losh]

On Fri, Dec 4, 2015 at 10:39 AM, Daniel Braniss <danny at cs.huji.ac.il> wrote:

>
> On 4 Dec 2015, at 6:33 PM, Warner Losh <imp at bsdimp.com> wrote:
>
>
> On Dec 4, 2015, at 9:31 AM, Daniel Braniss <danny at cs.huji.ac.il> wrote:
>
> Hi,
> I can cross compile for armv6 (raspberry Pi B), and I do get a working
> version, and till about July, I was
> able to cross compile a module doing something like this:
> $ cd $SRC
> $ make kernel-toolchain TARGET_ARCH=armv6
> $ make buildenv TARGET_ARCH=armv6 BUILDENV_SHELL=/usr/local/bin/shell
> $ cd <moduledir>
> $ make
>
> but today, after a fresh svn update of current, I get:
>
> Warning: Object directory not changed from original
> /a/fr-05/vol/home/system/danny/src/FreeBSD/ARM/elc/sys/modules/mfrc
> cc  -O -pipe -mfloat-abi=softfp  -DMFRC_DEBUG=8 -Werror -D_KERNEL
> -DKLD_MODULE -nostdinc
>  -I/a/fr-05/vol/home/system/danny/src/FreeBSD/ARM/elc/sys/modules/mfrc/../..
> -I. -I@ -I@/contrib/altq -fno-common   -ffreestanding -c
> /a/fr-05/vol/home/system/danny/src/FreeBSD/ARM/elc/sys/modules/mfrc/../../dev/mfrc/mfrc.c
> -o mfrc.o
> cc: error: argument unused during compilation: '-mfloat-abi=softfp'
> *** Error code 1
>
> so, what magic am I missing?
>
>
> What does which cc say?
>
> the host I use to cross compile is running 10.1,
>
> /usr/bin/cc
>
> but I also tried CC=clang
> there is another error, which appeared before, and I solve it by setting
> MK_FORMAT_EXTENSIONS=no
> (which out it complains … malformed conditional (${MK_FORMAT_EXTENSIONS)
> == “no”)
>
>
If which cc returns /usr/bin/cc, then you  haven't built the toolchain.

Warner