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SubjectRe: Stack protector kernel build error
On Sat, Oct 14, 2017 at 12:53 PM, Robert Jarzmik <robert.jarzmik@free.fr> wrote:
> Hi Kees,
>
> Today my linux-next build broke for the pxa architecture.
> My specific setup is :
> - ARCH=arm make pxa_defconfig; ARCH=arm CROSS_COMPILE=arm-linux-gnueabi- make
> - my compiler is:
> rj@belgarion:~/mio_linux/kernel$ arm-linux-gnueabi-gcc --version
> arm-linux-gnueabi-gcc (Debian 6.3.0-18) 6.3.0 20170516
>
> And the error message is :
> rj@belgarion:~/mio_linux/kernel$ make -j 4
> CHK include/config/kernel.release
> CONFIG_CC_STACKPROTECTOR_AUTO: Compiler does not support any known stack-protector
> Cannot use CONFIG_CC_STACKPROTECTOR_AUTO: not supported by compiler
> Makefile:1097: recipe for target 'prepare-compiler-check' failed
> make: *** [prepare-compiler-check] Error 1
> make: *** Waiting for unfinished jobs....
> make: *** wait: No child processes. Stop.
>
>
> Is this expected, as I was under the impression my compiler was not that
> outdated ...

Hmm, there's probably a bug in my attempt at making the ..._AUTO mode work.

What does "arm-linux-gnueabi-gcc -fstack-protector" say?

-Kees

--
Kees Cook
Pixel Security

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