Messages in this thread | | | From | Naresh Kamboju <> | Date | Mon, 20 Sep 2021 08:55:46 +0530 | Subject | x86_64: clang-10: <instantiation>:2:2: error: unknown use of instruction mnemonic without a size suffix |
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Following build warnings/ errors noticed while building linux mainline master branch with clang-10 for x86_64 architecture. But clang-11, clang-12 and clang-13 build pass.
<instantiation>:2:2: error: unknown use of instruction mnemonic without a size suffix lsl %rax, %rax ^ <instantiation>:1:1: note: while in macro instantiation LOAD_CPU_AND_NODE_SEG_LIMIT %rax ^ <instantiation>:2:2: note: while in macro instantiation GET_PERCPU_BASE %rax ^ /builds/linux/arch/x86/entry/entry_64.S:887:2: note: while in macro instantiation SAVE_AND_SET_GSBASE scratch_reg=%rax save_reg=%rbx ^ make[3]: *** [/builds/linux/scripts/Makefile.build:379: arch/x86/entry/entry_64.o] Error 1 arch/x86/entry/entry_64_compat.o: warning: objtool: .entry.text+0x215: can't find jump dest instruction at .entry.text+0x21a make[3]: Target '__build' not remade because of errors. make[2]: *** [/builds/linux/scripts/Makefile.build:540: arch/x86/entry] Error 2 make[2]: Target '__build' not remade because of errors. make[1]: *** [/builds/linux/Makefile:1868: arch/x86] Error 2
Build config: https://builds.tuxbuild.com/1yNlOcqNwVJJje4WbGjSV4ZeBh6/config
Reported-by: Linux Kernel Functional Testing <lkft@linaro.org>
meta data: ----------- git_describe: v5.15-rc2 git_ref: git_repo: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git_sha: e4e737bb5c170df6135a127739a9e6148ee3da82 git_short_log: e4e737bb5c17 (\"Linux 5.15-rc2\") kconfig: [ defconfig ], target_arch: x86_64 toolchain: clang-10
steps to reproduce: tuxmake --runtime podman --target-arch x86_64 --toolchain clang-10 --kconfig defconfig
https://builds.tuxbuild.com/1yNlOcqNwVJJje4WbGjSV4ZeBh6/tuxmake_reproducer.sh
-- Linaro LKFT https://lkft.linaro.org
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