linux-kernel - Re: [PATCH 5.10 000/132] 5.10.85-rc1 review

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Date:   Mon, 13 Dec 2021 13:21:28 -0600
From:   Daniel Díaz <daniel.diaz@...aro.org>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Pavel Machek <pavel@...x.de>
Cc:     linux-kernel@...r.kernel.org, torvalds@...ux-foundation.org,
        akpm@...ux-foundation.org, linux@...ck-us.net, shuah@...nel.org,
        patches@...nelci.org, lkft-triage@...ts.linaro.org,
        jonathanh@...dia.com, f.fainelli@...il.com, stable@...r.kernel.org
Subject: Re: [PATCH 5.10 000/132] 5.10.85-rc1 review

Hello!

On Mon, 13 Dec 2021 at 06:44, Greg Kroah-Hartman
<gregkh@...uxfoundation.org> wrote:
> On Mon, Dec 13, 2021 at 11:35:36AM +0100, Pavel Machek wrote:
> > Hi!
> >
> > > This is the start of the stable review cycle for the 5.10.85 release.
> > > There are 132 patches in this series, all will be posted as a response
> > > to this one.  If anyone has any issues with these being applied, please
> > > let me know.
> >
> > I'm getting a lot of build failures -- missing gmp.h:
> >
> >   UPD     include/generated/utsrelease.h
> > 1317In file included from /builds/hVatwYBy/68/cip-project/cip-testing/linux-stable-rc-ci/gcc/gcc-8.1.0-nolibc/arm-linux-gnueabi/bin/../lib/gcc/arm-linux-gnueabi/8.1.0/plugin/include/gcc-plugin.h:28:0,
> > 1318                 from scripts/gcc-plugins/gcc-common.h:7,
> > 1319                 from scripts/gcc-plugins/arm_ssp_per_task_plugin.c:3:
> > 1320/builds/hVatwYBy/68/cip-project/cip-testing/linux-stable-rc-ci/gcc/gcc-8.1.0-nolibc/arm-linux-gnueabi/bin/../lib/gcc/arm-linux-gnueabi/8.1.0/plugin/include/system.h:687:10: fatal error: gmp.h: No such file or directory
> > 1321 #include <gmp.h>
> > 1322          ^~~~~~~
> > 1323compilation terminated.
> > 1324scripts/gcc-plugins/Makefile:47: recipe for target 'scripts/gcc-plugins/arm_ssp_per_task_plugin.so' failed
> > 1325
> >
> > https://gitlab.com/cip-project/cip-testing/linux-stable-rc-ci/-/tree/linux-5.10.y
>
> What gcc plugins are you trying to build with?

We saw a similar problem with mainline/next about a year ago, after
v5.10 was released. In our case it failed with gmp.h because
libmpc-dev was not installed on the host; then libiberty-dev was
needed too, but that was not sufficient and kept failing with this:

| In file included from
/poky/build/tmp-lkft-glibc/work/am57xx_evm-linaro-linux-gnueabi/linux-generic-mainline/5.14+gitAUTOINC+7d2a07b769-r0/recipe-sysroot-native/usr/bin/arm-linaro-linux-gnueabi/../../lib/arm-linaro-linux-gnueabi/gcc/arm-linaro-linux-gnueabi/7.3.0/plugin/include/gcc-plugin.h:28,
|                  from
/poky/build/tmp-lkft-glibc/work-shared/am57xx-evm/kernel-source/scripts/gcc-plugins/gcc-common.h:7,
|                  from
/poky/build/tmp-lkft-glibc/work-shared/am57xx-evm/kernel-source/scripts/gcc-plugins/arm_ssp_per_task_plugin.c:3:
| /poky/build/tmp-lkft-glibc/work/am57xx_evm-linaro-linux-gnueabi/linux-generic-mainline/5.14+gitAUTOINC+7d2a07b769-r0/recipe-sysroot-native/usr/bin/arm-linaro-linux-gnueabi/../../lib/arm-linaro-linux-gnueabi/gcc/arm-linaro-linux-gnueabi/7.3.0/plugin/include/system.h:691:10:
fatal error: libiberty.h: No such file or directory
|  #include "libiberty.h"
|           ^~~~~~~~~~~~~
| compilation terminated.
| make[3]: *** [/poky/build/tmp-lkft-glibc/work-shared/am57xx-evm/kernel-source/scripts/gcc-plugins/Makefile:48:
scripts/gcc-plugins/arm_ssp_per_task_plugin.so] Error 1
| make[2]: *** [/poky/build/tmp-lkft-glibc/work-shared/am57xx-evm/kernel-source/scripts/Makefile.build:514:
scripts/gcc-plugins] Error 2

We worked around it by setting this in our (legacy) Arm 32-bits builds:

  CONFIG_GCC_PLUGINS=n
  CONFIG_GCC_PLUGIN_ARM_SSP_PER_TASK=n

This is with GCC 7.3.3 cross-compiling from within OpenEmbedded
(Sumo). Our newer system works fine with GCC 8, 9, 10, 11 and the
Clangs.

Greetings!

Daniel Díaz
daniel.diaz@...aro.org