Re: [PATCH 3/3] powerpc/vdso: Merge vdso64 and vdso32 into a single directory

Le 22/12/2021 à 10:25, kernel test robot a écrit :

Hi Christophe,

I love your patch! Yet something to improve:

[auto build test ERROR on powerpc/next]
[also build test ERROR on v5.16-rc6 next-20211221]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/0day-ci/linux/commits/Christophe-Leroy/powerpc-vdso-augment-VDSO32-functions-to-support-64-bits-build/20211222-021033
base:   https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next
config: powerpc-randconfig-r023-20211222 (https://download.01.org/0day-ci/archive/20211222/202112221723.qyvrCJHe-lkp@intel.com/config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project de4e0195ae1c39f1c3b07834b8e32c113f4f20eb)
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 powerpc cross compiling tool for clang build
         # apt-get install binutils-powerpc-linux-gnu
         # https://github.com/0day-ci/linux/commit/16137812dbb55d25ebe3962d5fb7486cb5b43311
         git remote add linux-review https://github.com/0day-ci/linux
         git fetch --no-tags linux-review Christophe-Leroy/powerpc-vdso-augment-VDSO32-functions-to-support-64-bits-build/20211222-021033
         git checkout 16137812dbb55d25ebe3962d5fb7486cb5b43311
         # save the config file to linux build tree
         mkdir build_dir
         COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=powerpc prepare

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

All errors (new ones prefixed by >>):

    <stdin>:1559:2: warning: syscall futex_waitv not implemented [-W#warnings]
    #warning syscall futex_waitv not implemented
     ^
    1 warning generated.

quoted

quoted

arch/powerpc/kernel/vdso/gettimeofday.S:75:8: error: unsupported directive '.stabs'

    .stabs "_restgpr_31_x:F-1",36,0,0,_restgpr_31_x; .globl _restgpr_31_x; _restgpr_31_x:
           ^
    arch/powerpc/kernel/vdso/gettimeofday.S:76:8: error: unsupported directive '.stabs'
    .stabs "_rest32gpr_31_x:F-1",36,0,0,_rest32gpr_31_x; .globl _rest32gpr_31_x; _rest32gpr_31_x:

This problem is unrelated to this patch, you can see below it is from 
2021-03-09, and it isn't even introduced by that commit but only by the 
fact that it uses _GLOBAL() which has existed for years.

Anyway, there is already a patch to fix it at 
https://patchwork.ozlabs.org/project/linuxppc-dev/patch/68932ec2ba6b868d35006b96e90f0890f3da3c05.1638273868.git.christophe.leroy@csgroup.eu/

           ^
    make[2]: *** [arch/powerpc/kernel/vdso/Makefile:71: arch/powerpc/kernel/vdso/gettimeofday-32.o] Error 1
    make[2]: Target 'include/generated/vdso32-offsets.h' not remade because of errors.
    make[1]: *** [arch/powerpc/Makefile:421: vdso_prepare] Error 2
    make[1]: Target 'prepare' not remade because of errors.
    make: *** [Makefile:219: __sub-make] Error 2
    make: Target 'prepare' not remade because of errors.


vim +75 arch/powerpc/kernel/vdso/gettimeofday.S

08c18b63d9656e arch/powerpc/kernel/vdso32/gettimeofday.S Christophe Leroy 2021-03-09  70
08c18b63d9656e arch/powerpc/kernel/vdso32/gettimeofday.S Christophe Leroy 2021-03-09  71  /* Routines for restoring integer registers, called by the compiler.  */
08c18b63d9656e arch/powerpc/kernel/vdso32/gettimeofday.S Christophe Leroy 2021-03-09  72  /* Called with r11 pointing to the stack header word of the caller of the */
08c18b63d9656e arch/powerpc/kernel/vdso32/gettimeofday.S Christophe Leroy 2021-03-09  73  /* function, just beyond the end of the integer restore area.  */
11f0a078a8b6be arch/powerpc/kernel/vdso32/gettimeofday.S Christophe Leroy 2021-12-21  74  #ifndef __powerpc64__
08c18b63d9656e arch/powerpc/kernel/vdso32/gettimeofday.S Christophe Leroy 2021-03-09 @75  _GLOBAL(_restgpr_31_x)

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