[yocto] Failed to cross compile kernel with Yocto toolchain

[Zhenhua Luo]

Hello Khem, 

> -----Original Message-----
> From: Khem Raj [mailto:raj.khem at gmail.com]
> Sent: Tuesday, June 28, 2016 12:36 AM
> To: Zhenhua Luo <zhenhua.luo at nxp.com>
> Cc: yocto at yoctoproject.org
> Subject: Re: [yocto] Failed to cross compile kernel with Yocto toolchain
> 
> On Mon, Jun 27, 2016 at 1:16 AM, Zhenhua Luo <zhenhua.luo at nxp.com>
> wrote:
> > Hello all,
> >
> >
> >
> > I generate the Yocto toolchain by “bitbake meta-toolchain”, and use
> > this toolchain to cross-compile kernel, I met the following error. Is
> > this a bug or I missed something? My host Linux is Fedora 22.
> 
> its better to start using bitbake -cpopulate_sdk <image name> to generate
> SDKs.
> 
> 
> >
> >
> >
> > $ source /opt/poky/2.1+snapshot/environment-setup-ppce500mc-poky-
> linux
> >
> > $ cd linux/
> >
> > $ make corenet32_smp_defconfig
> >
> >   HOSTCC  scripts/kconfig/conf.o
> >
> > ccache: error: Could not find compiler "gcc" in PATH
> 
> did you see if gcc is in your path after sourcing SDK env script? 
[Luo Zhenhua-B19537] gcc can't be found after sourcing the SDK env script. but the /usr/bin is in the PATH env variable. 
$ source /opt/poky/2.1+snapshot/environment-setup-ppce500mc-poky-linux
$ echo $PATH
/opt/poky/2.1+snapshot/sysroots/x86_64-pokysdk-linux/usr/bin:/opt/poky/2.1+snapshot/sysroots/x86_64-pokysdk-linux/usr/sbin:/opt/poky/2.1+snapshot/sysroots/x86_64-pokysdk-linux/bin:/opt/poky/2.1+snapshot/sysroots/x86_64-pokysdk-linux/sbin:/opt/poky/2.1+snapshot/sysroots/x86_64-pokysdk-linux/usr/bin/../x86_64-pokysdk-linux/bin:/opt/poky/2.1+snapshot/sysroots/x86_64-pokysdk-linux/usr/bin/powerpc-poky-linux:/opt/poky/2.1+snapshot/sysroots/x86_64-pokysdk-linux/usr/bin/powerpc-poky-linux-uclibc:/opt/poky/2.1+snapshot/sysroots/x86_64-pokysdk-linux/usr/bin/powerpc-poky-linux-musl:/usr/lib64/qt-3.3/bin:/usr/lib64/ccache:/usr/local/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/home/bjsimics/.local/bin:/home/bjsimics/bin
$ echo $CCACHE_PATH
/opt/poky/2.1+snapshot/sysroots/x86_64-pokysdk-linux/usr/bin:/opt/poky/2.1+snapshot/sysroots/x86_64-pokysdk-linux/usr/bin/../x86_64-pokysdk-linux/bin:/opt/poky/2.1+snapshot/sysroots/x86_64-pokysdk-linux/usr/bin/powerpc-poky-linux:/opt/poky/2.1+snapshot/sysroots/x86_64-pokysdk-linux/usr/bin/powerpc-poky-linux-uclibc:/opt/poky/2.1+snapshot/sysroots/x86_64-pokysdk-linux/usr/bin/powerpc-poky-linux-musl:
$ which gcc
/usr/lib64/ccache/gcc
$ gcc -v
ccache: error: Could not find compiler "gcc" in PATH


Best Regards, 

Zhenhua
  
> > scripts/Makefile.host:108: recipe for target 'scripts/kconfig/conf.o'
> > failed
> >
> > make[1]: *** [scripts/kconfig/conf.o] Error 1
> >
> > Makefile:541: recipe for target 'corenet32_smp_defconfig' failed
> >
> > make: *** [corenet32_smp_defconfig] Error 2
> >
> >
> >
> >
> >
> > Best Regards,
> >
> >
> >
> > Zhenhua
> >
> >
> > --
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> > yocto at yoctoproject.org
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> >