Messages in this thread | | | From | Naresh Kamboju <> | Date | Mon, 21 Aug 2023 19:17:53 +0530 | Subject | clang: error: cannot specify -o when generating multiple output files |
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Recently we have updated the toolchain clang-17 version.
While building selftests filesystems/binderfs, openat2, resctrl and x86 following warnings / errors noticed on the Linux next with clang-17. But pass with gcc-13.
Reported-by: Linux Kernel Functional Testing <lkft@linaro.org>
Build logs: ======== binderfs_test clang: error: cannot specify -o when generating multiple output files ... openat2/openat2_test clang: error: cannot specify -o when generating multiple output files ... resctrl/resctrl_tests clang: error: cannot specify -o when generating multiple output files ... make[4]: Entering directory 'tools/testing/selftests/x86' clang --target=x86_64-linux-gnu -fintegrated-as -Werror=unknown-warning-option -Werror=ignored-optimization-argument -Werror=option-ignored -Werror=unused-command-line-argument --target=x86_64-linux-gnu -fintegrated-as -m64 -o /home/tuxbuild/.cache/tuxmake/builds/1/build/kselftest/x86/single_step_syscall_64 -O2 -g -std=gnu99 -pthread -Wall -isystem /home/tuxbuild/.cache/tuxmake/builds/1/build/usr/include -no-pie -DCAN_BUILD_64 single_step_syscall.c helpers.h -lrt -ldl clang: error: cannot specify -o when generating multiple output files make[4]: *** [Makefile:78: /home/tuxbuild/.cache/tuxmake/builds/1/build/kselftest/x86/single_step_syscall_64] Error 1
Links: - https://storage.tuxsuite.com/public/linaro/lkft/builds/2UHhSg0TPLhjp9Uq9EFceoQd0VL/ - https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20230821/testrun/19213760/suite/kselftest-x86/test/shardfile-x86/details/ - https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20230821/testrun/19213728/suite/kselftest-openat2/test/shardfile-openat2/details/ -
Steps to reproduce: - https://storage.tuxsuite.com/public/linaro/lkft/builds/2UHhSg0TPLhjp9Uq9EFceoQd0VL/tuxmake_reproducer.sh
tuxmake --runtime podman --target-arch x86_64 --toolchain clang-17 --kconfig https://storage.tuxsuite.com/public/linaro/lkft/builds/2UHhSg0TPLhjp9Uq9EFceoQd0VL/config LLVM=1 LLVM_IAS=1 debugkernel cpupower headers kernel kselftest modules
-- Linaro LKFT https://lkft.linaro.org
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