linux-kernel - [next] arm: current.h:53:6: error: out of range pc-relative fixup value

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Message-ID: <CA+G9fYuz1Bfkfga7xVPVdTLETBQK3=4UsXq15kZW8C85DhyXJQ@mail.gmail.com>
Date:   Wed, 22 Dec 2021 23:57:20 +0530
From:   Naresh Kamboju <naresh.kamboju@...aro.org>
To:     llvm@...ts.linux.dev, open list <linux-kernel@...r.kernel.org>,
        clang-built-linux <clang-built-linux@...glegroups.com>,
        Linux-Next Mailing List <linux-next@...r.kernel.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>
Cc:     Nick Desaulniers <ndesaulniers@...gle.com>,
        Nathan Chancellor <nathan@...nel.org>,
        Arnd Bergmann <arnd@...db.de>,
        Catalin Marinas <catalin.marinas@....com>,
        Ard Biesheuvel <ardb@...nel.org>,
        Nicolas Pitre <nico@...xnic.net>,
        Linus Walleij <linus.walleij@...aro.org>
Subject: [next] arm: current.h:53:6: error: out of range pc-relative fixup value

[ Please ignore this email if it is already reported ]

On Linux next 20211220 (and  20211222) tag following arm config builds failed
with clang-11, clang-12, clang-13 and clang-nightly.

Build errors:
-------------
In file included from /builds/linux/kernel/sched/core.c:10:
In file included from /builds/linux/include/trace/events/sched.h:8:
In file included from /builds/linux/include/linux/kthread.h:6:
In file included from /builds/linux/include/linux/sched.h:12:
/builds/linux/arch/arm/include/asm/current.h:53:6: error: out of range
pc-relative fixup value
        asm(LOAD_SYM_ARMV6(%0, __current) : "=r"(cur));
            ^
/builds/linux/arch/arm/include/asm/insn.h:25:2: note: expanded from
macro 'LOAD_SYM_ARMV6'
        "       ldr     " #reg ", =" #sym "                     \n\t"   \
        ^
<inline asm>:1:3: note: instantiated into assembly here
                ldr     r2, =__current
                ^

Reported-by: Linux Kernel Functional Testing <lkft@...aro.org>


meta data:
-----------
    git describe: next-20211220 to next-20211222
    git_repo: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
    git_sha: 2bd48302750c652889a2604b3df8b591c1d3af08
    git_short_log: 2bd48302750c (\"Add linux-next specific files for 20211222\")
    target_arch: arm
    toolchain: clang-11, clang-12, clang-13 and clang-nightly

Build log:
https://builds.tuxbuild.com/22doqqkr5uM1RUG67iJevPNL9nQ/

Regressions found on arm:

  -  clang-11-vexpress_defconfig
  -  clang-11-shmobile_defconfig
  -  clang-13-at91_dt_defconfig
  -  clang-13-lpc32xx_defconfig
  -  clang-11-omap2plus_defconfig
  -  clang-12-allnoconfig
  -  clang-13-imx_v6_v7_defconfig
  -  clang-11-mini2440_defconfig
  -  clang-13-imx_v4_v5_defconfig
  -  clang-12-multi_v5_defconfig
  -  clang-13-mxs_defconfig
  -  clang-13-ixp4xx_defconfig
  -  clang-11-lpc32xx_defconfig
  -  clang-nightly-s3c6400_defconfig
  -  clang-13-nhk8815_defconfig
  -  clang-12-imx_v6_v7_defconfig
  -  clang-11-nhk8815_defconfig
  -  clang-12-ixp4xx_defconfig
  -  clang-13-footbridge_defconfig
  -  clang-11-tinyconfig
  -  clang-11-axm55xx_defconfig
  -  clang-12-bcm2835_defconfig
  -  clang-12-davinci_all_defconfig
  -  clang-12-omap2plus_defconfig
  -  clang-11-at91_dt_defconfig
  -  clang-11-multi_v5_defconfig
  -  clang-11-s3c2410_defconfig
  -  clang-11-footbridge_defconfig
  -  clang-12-s3c2410_defconfig
  -  clang-12-mxs_defconfig
  -  clang-12-omap1_defconfig
  -  clang-11-defconfig
  -  clang-11-omap1_defconfig
  -  clang-13-orion5x_defconfig
  -  clang-12-orion5x_defconfig
  -  clang-11-davinci_all_defconfig
  -  clang-12-lpc32xx_defconfig
  -  clang-11-ixp4xx_defconfig
  -  clang-12-mini2440_defconfig
  -  clang-11-u8500_defconfig
  -  clang-11-integrator_defconfig
  -  clang-13-davinci_all_defconfig
  -  clang-11-mxs_defconfig
  -  clang-11-orion5x_defconfig
  -  clang-12-tinyconfig
  -  clang-12-footbridge_defconfig
  -  clang-11-imx_v4_v5_defconfig
  -  clang-13-s3c2410_defconfig
  -  clang-nightly-bcm2835_defconfig
  -  clang-11-allnoconfig
  -  clang-11-exynos_defconfig
  -  clang-11-keystone_defconfig
  -  clang-13-mini2440_defconfig
  -  clang-13-integrator_defconfig
  -  clang-12-imx_v4_v5_defconfig
  -  clang-13-multi_v5_defconfig
  -  clang-13-omap1_defconfig
  -  clang-11-bcm2835_defconfig
  -  clang-11-imx_v6_v7_defconfig
  -  clang-12-at91_dt_defconfig
  -  clang-12-integrator_defconfig
  -  clang-12-nhk8815_defconfig

steps to reproduce:
-------------------
# To install tuxmake on your system globally:
# sudo pip3 install -U tuxmake
#
# See https://docs.tuxmake.org/ for complete documentation.
# Original tuxmake command with fragments listed below.
# tuxmake --runtime podman --target-arch arm --toolchain clang-11
--kconfig at91_dt_defconfig LLVM=1 LLVM_IAS=1


tuxmake --runtime podman --target-arch arm --toolchain clang-11
--kconfig https://builds.tuxbuild.com/22doqqkr5uM1RUG67iJevPNL9nQ/config
LLVM=1 LLVM_IAS=1

--
Linaro LKFT
https://lkft.linaro.org