Following build warnings / errors noticed on arm with clang-13 / 14 on Linux next-20220923.
Reported-by: Linux Kernel Functional Testing lkft@linaro.org
Regressions found on arm:
- build-clang-13-bcm2835_defconfig - build-clang-nightly-imx_v6_v7_defconfig - build-clang-nightly-orion5x_defconfig - build-clang-13-keystone_defconfig - build-clang-13-omap2plus_defconfig - build-clang-14-imx_v6_v7_defconfig - build-clang-nightly-omap2plus_defconfig - build-clang-nightly-multi_v5_defconfig - build-clang-nightly-bcm2835_defconfig - build-clang-13-imx_v6_v7_defconfig - build-clang-13-imx_v4_v5_defconfig - build-clang-14-imx_v4_v5_defconfig - build-clang-13-orion5x_defconfig - build-clang-14-multi_v5_defconfig-65236a87 - build-clang-14-lkftconfig - build-clang-nightly-imx_v4_v5_defconfig - build-clang-13-multi_v5_defconfig - build-clang-13-lkftconfig - build-clang-nightly-keystone_defconfig - build-clang-14-multi_v5_defconfig - build-clang-14-orion5x_defconfig - build-clang-14-omap2plus_defconfig - build-clang-nightly-multi_v5_defconfig-65236a87 - build-clang-14-bcm2835_defconfig - build-clang-14-keystone_defconfig - build-clang-nightly-lkftconfig
arch/arm/probes/kprobes/core.c:409:30: error: .fnstart must precede .save or .vsave directives "stmdb sp, {sp, lr, pc} \n\t" ^ <inline asm>:3:2: note: instantiated into assembly here .save {sp, lr, pc} ^ /builds/linux/arch/arm/probes/kprobes/core.c:412:29: error: .fnstart must precede .pad directive "stmdb sp!, {r0 - r11} \n\t" ^ <inline asm>:6:2: note: instantiated into assembly here .pad #52 ^ 2 errors generated. make[5]: *** [/builds/linux/scripts/Makefile.build:250: arch/arm/probes/kprobes/core.o] Error 1
build log: https://builds.tuxbuild.com/2FAyD1qcTlzjIYE7mjrugjCsxu1/
-- Linaro LKFT https://lkft.linaro.org