Re: Cross compiling MIPS kernel under x86

[Jan Rovins <janr@adax.com>]

octane indice wrote:
> Hello
>
> I have an octeon board. I'm trying to use a custom kernel from kernel.org
> instead of the Cavium one.
>
> Under x86, I installed the CrossTools from kegel:
> http://www.kegel.com/crosstool/
>
> I tried to cross compile:
> octane@darkstar:/opt/linux-2.6.34$ make ARCH=mips
> CROSS_COMPILE=/opt/crosstool/gcc-3.4.5-glibc-2.3.6/mips-unknown-linux-gnu/bin/mips-unknown-linux-gnu-
>   CHK     include/linux/version.h
>   CHK     include/generated/utsrelease.h
>   Checking missing-syscalls for N32
>   CALL    scripts/checksyscalls.sh
>   Checking missing-syscalls for O32
>   CALL    scripts/checksyscalls.sh
>   CALL    scripts/checksyscalls.sh
>   CC      scripts/mod/empty.o
> Assembler messages:
> Error: Bad value (octeon) for -march
> make[2]: *** [scripts/mod/empty.o] Error 1
> make[1]: *** [scripts/mod] Error 2
> make: *** [scripts] Error 2
>
> So, I'm obviously missing a thing, but what?
>
> Here is other information:
> octane@darkstar:/opt$ cat world.c 
> #include <stdio.h>
> int main()
> {
>     printf("Hello world!\n");
>     return 0;
> }
> octane@darkstar:/opt$
> /opt/crosstool/gcc-3.4.5-glibc-2.3.6/mips-unknown-linux-gnu/bin/mips-unknown-linux-gnu-gcc
> -march=octeon -o hello world.c 
> world.c:1: error: bad value (octeon) for -march
> octane@darkstar:/opt$
>
> octane@darkstar:/opt$ ls
> /opt/crosstool/gcc-3.4.5-glibc-2.3.6/mips-unknown-linux-gnu/bin/
> fix-embedded-paths*                mips-unknown-linux-gnu-gcov*
> mips-unknown-linux-gnu-addr2line*  mips-unknown-linux-gnu-gprof*
> mips-unknown-linux-gnu-ar*         mips-unknown-linux-gnu-ld*
> mips-unknown-linux-gnu-as*         mips-unknown-linux-gnu-nm*
> mips-unknown-linux-gnu-c++*        mips-unknown-linux-gnu-objcopy*
> mips-unknown-linux-gnu-c++filt*    mips-unknown-linux-gnu-objdump*
> mips-unknown-linux-gnu-cpp*        mips-unknown-linux-gnu-ranlib*
> mips-unknown-linux-gnu-g++*        mips-unknown-linux-gnu-readelf*
> mips-unknown-linux-gnu-gcc*        mips-unknown-linux-gnu-size*
> mips-unknown-linux-gnu-gcc-3.4.5*  mips-unknown-linux-gnu-strings*
> mips-unknown-linux-gnu-gccbug*     mips-unknown-linux-gnu-strip*
>
> So, is it a problem with octeon arch and gcc, or a mips problem?
>
> Thanks
>
>
>
>
>
>
>
>
> ------------------------------------------------------------------------------------------
>
>
> Envoyé avec Inmano, ma messagerie renversante et gratuite : http://www.inmano.com
>
>
>
>   

gcc-3.4.5-glibc-2.3.6


The recognition of "octeon" as an option does not show up in GCC until mainstream version 4.4.
looks like your gcc is too old 
gcc-3.4.5-glibc-2.3.6


Jan