From: Naresh Kamboju <naresh.kamboju@linaro.org>
To: clang-built-linux <clang-built-linux@googlegroups.com>,
llvm@lists.linux.dev, open list <linux-kernel@vger.kernel.org>,
X86 ML <x86@kernel.org>
Cc: Nathan Chancellor <natechancellor@gmail.com>,
Nick Desaulniers <ndesaulniers@google.com>,
Linus Torvalds <torvalds@linux-foundation.org>,
Andy Lutomirski <luto@kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>
Subject: x86_64: clang-10: <instantiation>:2:2: error: unknown use of instruction mnemonic without a size suffix
Date: Mon, 20 Sep 2021 08:55:46 +0530 [thread overview]
Message-ID: <CA+G9fYvoyDqbCnmcVMHCO3Zxn9=FGTjyTH9u=7FT7rCz-dh6JA@mail.gmail.com> (raw)
[Please ignore this email if it is already reported ]
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
next reply other threads:[~2021-09-20 3:26 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-20 3:25 Naresh Kamboju [this message]
2021-09-20 3:25 ` x86_64: clang-10: <instantiation>:2:2: error: unknown use of instruction mnemonic without a size suffix Naresh Kamboju
2021-09-20 3:43 ` Nathan Chancellor
2021-09-20 6:54 ` Naresh Kamboju
2021-09-20 6:54 ` Naresh Kamboju
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