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

[kernel test robot <lkp@intel.com>]

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 <lkp@intel.com>

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.
>> 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:
          ^
   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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