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Date:   Sun, 15 Oct 2017 11:05:27 +0200
From:   Robert Jarzmik <>
To:     Kees Cook <>
Subject: Re: [PATCH] Makefile: Another fix for stackprotector _AUTO mode

Kees Cook <> writes:

> If the compiler didn't support a build mode, the second empty test would
> still trip. This moves it to an "else" test for the non-AUTO modes.
> Reported-by: Robert Jarzmik <>
> Signed-off-by: Kees Cook <>
> ---
> Robert, can you test this fix?
Sure, tested and it works perfectly.

Tested-by: Robert Jarzmik <>

And just to be more complete, what happened yesterday was that I wrongly wrote
"CROSS_COMPILER=arm-linux-gnueabi-" and not "CROSS_COMPILE=arm-linux-gnueabi-".

Normally when I do that kind of mistake, I get a gcc error that my architecture
options (-mabi, ...) are not supported. This time I got the stackprotector
thing. The good part is that with your patch I see again the gcc warnings I was
used too :)



rj@...garion:~/mio_linux/kernel$ arm-linux-gnueabi-gcc -fstack-protector
arm-linux-gnueabi-gcc: fatal error: no input files
compilation terminated.

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