2021-01-22 01:43:45

by kernel test robot

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Subject: arch/riscv/kernel/vdso/vdso-syms.S:2: Error: junk at end of line, first unrecognized character is `@'

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Hi Palmer,

First bad commit (maybe != root cause):

tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 9f29bd8b2e7132b409178d1367dae1813017bd0e
commit: c2c81bb2f69138f902e1a58d3bef6ad97fb8a92c RISC-V: Fix the VDSO symbol generaton for binutils-2.35+
date: 3 months ago
config: riscv-randconfig-r002-20210122 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project bd3a387ee76f58caa0d7901f3f84e9bb3d006f27)
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# install riscv cross compiling tool for clang build
# apt-get install binutils-riscv64-linux-gnu
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c2c81bb2f69138f902e1a58d3bef6ad97fb8a92c
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout c2c81bb2f69138f902e1a58d3bef6ad97fb8a92c
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=riscv

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <[email protected]>

All errors (new ones prefixed by >>):

arch/riscv/kernel/vdso/vdso-syms.S: Assembler messages:
>> arch/riscv/kernel/vdso/vdso-syms.S:2: Error: junk at end of line, first unrecognized character is `@'
arch/riscv/kernel/vdso/vdso-syms.S:4: Error: junk at end of line, first unrecognized character is `@'
arch/riscv/kernel/vdso/vdso-syms.S:6: Error: junk at end of line, first unrecognized character is `@'
arch/riscv/kernel/vdso/vdso-syms.S:8: Error: junk at end of line, first unrecognized character is `@'
arch/riscv/kernel/vdso/vdso-syms.S:10: Error: junk at end of line, first unrecognized character is `@'
arch/riscv/kernel/vdso/vdso-syms.S:12: Error: junk at end of line, first unrecognized character is `@'
clang-12: error: assembler command failed with exit code 1 (use -v to see invocation)

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/[email protected]

---

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2021-01-22 07:11:26

by Nathan Chancellor

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Subject: Re: arch/riscv/kernel/vdso/vdso-syms.S:2: Error: junk at end of line, first unrecognized character is `@'

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On Fri, Jan 22, 2021 at 09:41:35AM +0800, kernel test robot wrote:
> Hi Palmer,
>
> First bad commit (maybe != root cause):
>
> tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> head: 9f29bd8b2e7132b409178d1367dae1813017bd0e
> commit: c2c81bb2f69138f902e1a58d3bef6ad97fb8a92c RISC-V: Fix the VDSO symbol generaton for binutils-2.35+
> date: 3 months ago
> config: riscv-randconfig-r002-20210122 (attached as .config)
> compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project bd3a387ee76f58caa0d7901f3f84e9bb3d006f27)
> reproduce (this is a W=1 build):
> wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
> chmod +x ~/bin/make.cross
> # install riscv cross compiling tool for clang build
> # apt-get install binutils-riscv64-linux-gnu
> # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c2c81bb2f69138f902e1a58d3bef6ad97fb8a92c
> git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
> git fetch --no-tags linus master
> git checkout c2c81bb2f69138f902e1a58d3bef6ad97fb8a92c
> # save the attached .config to linux build tree
> COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=riscv
>
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot <[email protected]>
>
> All errors (new ones prefixed by >>):
>
> arch/riscv/kernel/vdso/vdso-syms.S: Assembler messages:
> >> arch/riscv/kernel/vdso/vdso-syms.S:2: Error: junk at end of line, first unrecognized character is `@'
> arch/riscv/kernel/vdso/vdso-syms.S:4: Error: junk at end of line, first unrecognized character is `@'
> arch/riscv/kernel/vdso/vdso-syms.S:6: Error: junk at end of line, first unrecognized character is `@'
> arch/riscv/kernel/vdso/vdso-syms.S:8: Error: junk at end of line, first unrecognized character is `@'
> arch/riscv/kernel/vdso/vdso-syms.S:10: Error: junk at end of line, first unrecognized character is `@'
> arch/riscv/kernel/vdso/vdso-syms.S:12: Error: junk at end of line, first unrecognized character is `@'
> clang-12: error: assembler command failed with exit code 1 (use -v to see invocation)
>
> ---
> 0-DAY CI Kernel Test Service, Intel Corporation
> https://lists.01.org/hyperkitty/list/[email protected]

I believe this is https://github.com/ClangBuiltLinux/linux/issues/1266.

Cheers,
Nathan