I think you mean /usr/lib64/ccache/gcc instead of /usr/lib64/gcc, it is a valid link.
$ source /opt/poky/2.1+snapshot/environment-setup-ppce500mc-poky-linux $ which gcc /usr/lib64/ccache/gcc $ $ ls -l /usr/lib64/ccache/gcc lrwxrwxrwx 1 root root 16 Jun 29 18:22 /usr/lib64/ccache/gcc -> ../../bin/ccache $ ls -l /usr/bin/ccache -rwxr-xr-x 1 root root 128584 Jan 26 14:58 /usr/bin/ccache $ Best Regards, Zhenhua > -----Original Message----- > From: Daniel. [mailto:danielhi...@gmail.com] > Sent: Wednesday, June 29, 2016 8:14 PM > To: Zhenhua Luo <zhenhua....@nxp.com> > Cc: Khem Raj <raj.k...@gmail.com>; yocto@yoctoproject.org > Subject: Re: [yocto] Failed to cross compile kernel with Yocto toolchain > > Is /usr/lib64/gcc a file or a link? Is it a valid link? > > 2016-06-29 5:52 GMT-03:00 Zhenhua Luo <zhenhua....@nxp.com>: > > The /usr/lib64/ccache is added in PATH by /etc/profile.d/ccache.sh > > when ccache is installed on Fedora host, the issue disappears if one > > of the following changes is done. > > > > 1. Remove /usr/lib64/ccache from PATH > > > > 2. Move /usr/lib64/ccache after /usr/bin in PATH > > > > 3. Set CCACHE_PATH equals to PATH > > > > 4. Unset CCACHE_PATH > > > > > > > > Another observation, before sourcing > > environment-setup-<core>-poky-linux, > > gcc can be found even if /usr/lib64/ccache is in prepend to PATH, but > > after sourcing the environment-setup-<core>-poky-linux script, the gcc > > can’t be found, this should be a bug of the > > environment-setup-<core>-poky-linux > > script. Should I open a Bugzilla ticket to track it? > > > > > > > > $ echo $PATH > > > > /usr/lib64/qt-3.3/bin:/usr/lib64/ccache:/usr/local/bin:/usr/bin:/usr/l > > ocal/sbin:/usr/sbin:/home/bjsimics/.local/bin:/home/bjsimics/bin > > > > which gcc > > > > /usr/lib64/ccache/gcc > > > > $ gcc -v > > > > Using built-in specs. > > > > COLLECT_GCC=/usr/bin/gcc > > > > COLLECT_LTO_WRAPPER=/usr/libexec/gcc/x86_64-redhat-linux/5.3.1/lto- > wra > > pper > > > > Target: x86_64-redhat-linux > > > > Configured with: ../configure --enable-bootstrap > > --enable-languages=c,c++,objc,obj-c++,fortran,ada,go,lto --prefix=/usr > > --mandir=/usr/share/man --infodir=/usr/share/info > > --with-bugurl=http://bugzilla.redhat.com/bugzilla --enable-shared > > --enable-threads=posix --enable-checking=release --enable-multilib > > --with-system-zlib --enable-__cxa_atexit > > --disable-libunwind-exceptions --enable-gnu-unique-object > > --enable-linker-build-id --with-linker-hash-style=gnu --enable-plugin > > --enable-initfini-array --disable-libgcj > > --with-default-libstdcxx-abi=gcc4-compatible --with-isl > > --enable-libmpx --enable-gnu-indirect-function --with-tune=generic > > --with-arch_32=i686 --build=x86_64-redhat-linux > > > > Thread model: posix > > > > gcc version 5.3.1 20160406 (Red Hat 5.3.1-6) (GCC) > > > > $ > > > > $ 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+sna > > pshot/sysroots/x86_64-pokysdk-linux/bin:/opt/poky/2.1+snapshot/sysroot > > s/x86_64-pokysdk-linux/sbin:/opt/poky/2.1+snapshot/sysroots/x86_64-pok > > ysdk-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-ucl > > ibc:/opt/poky/2.1+snapshot/sysroots/x86_64-pokysdk-linux/usr/bin/power > > pc-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 > > > > $ > > > > $ which gcc > > > > /usr/lib64/ccache/gcc > > > > $ gcc -v > > > > ccache: error: Could not find compiler "gcc" in PATH > > > > $ > > > > > > > > > > > > Best Regards, > > > > > > > > Zhenhua > > > > > > > > From: Khem Raj [mailto:raj.k...@gmail.com] > > Sent: Tuesday, June 28, 2016 10:48 PM > > To: Zhenhua Luo <zhenhua....@nxp.com> > > Cc: yocto@yoctoproject.org > > Subject: RE: [yocto] Failed to cross compile kernel with Yocto > > toolchain > > > > > > > > /usr/lib64/ccache is unusual why do you have it in path and if you > > really need it add it after all other paths. Check your env first > > > > > > > > On Jun 27, 2016 10:56 PM, "Zhenhua Luo" <zhenhua....@nxp.com> wrote: > > > > Hello Khem, > > > > > >> -----Original Message----- > >> From: Khem Raj [mailto:raj.k...@gmail.com] > >> Sent: Tuesday, June 28, 2016 12:36 AM > >> To: Zhenhua Luo <zhenhua....@nxp.com> > >> Cc: yocto@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....@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+sna > > pshot/sysroots/x86_64-pokysdk-linux/bin:/opt/poky/2.1+snapshot/sysroot > > s/x86_64-pokysdk-linux/sbin:/opt/poky/2.1+snapshot/sysroots/x86_64-pok > > ysdk-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-ucl > > ibc:/opt/poky/2.1+snapshot/sysroots/x86_64-pokysdk-linux/usr/bin/power > > pc-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 > >> > > >> > > >> > -- > >> > _______________________________________________ > >> > yocto mailing list > >> > yocto@yoctoproject.org > >> > https://lists.yoctoproject.org/listinfo/yocto > >> > > > > > > > > > > > -- > > _______________________________________________ > > yocto mailing list > > yocto@yoctoproject.org > > https://lists.yoctoproject.org/listinfo/yocto > > > > > > -- > "Do or do not. There is no try" > Yoda Master -- _______________________________________________ yocto mailing list yocto@yoctoproject.org https://lists.yoctoproject.org/listinfo/yocto