Hi Andrew, On Sat, Jun 30, 2018 at 1:30 PM, Olof Johansson <olof@xxxxxxxxx> wrote: > On Sat, Jun 30, 2018 at 11:12 AM, Andrew Morton > <akpm@xxxxxxxxxxxxxxxxxxxx> wrote: >> On Sat, 30 Jun 2018 11:07:20 -0700 Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> wrote: >> >>> On Sat, 30 Jun 2018 12:27:09 +0200 Dmitry Vyukov <dvyukov@xxxxxxxxxx> wrote: >>> >>> > > tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master >>> > > head: 1904148a361a07fb2d7cba1261d1d2c2f33c8d2e >>> > > commit: 758517202bd2e427664857c9f2aa59da36848aca arm: port KCOV to arm >>> > > date: 2 weeks ago >>> > > config: arm-allmodconfig (attached as .config) >>> > > compiler: arm-linux-gnueabi-gcc (Debian 7.2.0-11) 7.2.0 >>> > > reproduce: >>> > > wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross >>> > > chmod +x ~/bin/make.cross >>> > > git checkout 758517202bd2e427664857c9f2aa59da36848aca >>> > > # save the attached .config to linux build tree >>> > > GCC_VERSION=7.2.0 make.cross ARCH=arm >>> > > >>> > > All errors (new ones prefixed by >>): >>> > > >>> > > /tmp/cctnQ1CM.s: Assembler messages: >>> > >>> /tmp/cctnQ1CM.s:35: Error: .err encountered >>> > > /tmp/cctnQ1CM.s:36: Error: .err encountered >>> > > /tmp/cctnQ1CM.s:37: Error: .err encountered >>> > >>> > Hi kbuild test robot, >>> > >>> > The fix was mailed more than a month ago, but still not merged into >>> > the tree. That's linux... >>> >>> That was a rather unhelpful email. >>> >>> I've just scanned all your lkml emails since the start of May and >>> cannot find anything which looks like a fix for this issue. >>> >>> Please resend. About three weks ago :( >> >> OK, with a bi of amazing sleuthing I found this from Arnd, which is what >> I presume you're referring to? >> >> >> >> From: Arnd Bergmann <arnd@xxxxxxxx> >> Subject: ARM: disable KCOV for trusted foundations code >> >> The ARM trusted foundations code is currently broken in linux-next when >> CONFIG_KCOV_INSTRUMENT_ALL is set: >> >> /tmp/ccHdQsCI.s: Assembler messages: >> /tmp/ccHdQsCI.s:37: Error: .err encountered >> /tmp/ccHdQsCI.s:38: Error: .err encountered >> /tmp/ccHdQsCI.s:39: Error: .err encountered >> scripts/Makefile.build:311: recipe for target 'arch/arm/firmware/trusted_foundations.o' failed >> >> I could not find a function attribute that lets me disable >> -fsanitize-coverage=trace-pc for just one function, so this turns it off >> for the entire file instead. >> >> Link: http://lkml.kernel.org/r/20180529103636.1535457-1-arnd@xxxxxxxx >> Fixes: 758517202bd2e4 ("arm: port KCOV to arm") >> Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx> >> Cc: Dmitry Vyukov <dvyukov@xxxxxxxxxx> >> Cc: Mark Rutland <mark.rutland@xxxxxxx> >> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> > > Solves it on my builder at least. Would be good to get this in. > > Acked-by: Olof Johansson <olof@xxxxxxxxx> Since this doesn't seem to be in your queue at the moment, I've applied it to our set of fixes for 4.18 in arm-soc, I'll send to Linus at end of week and it'll be in -next as of now through there. Thanks, -Olof
