8:10 p.m.
On 2/14/2022 4:44 AM, Helge Deller wrote:
On 2/13/22 10:59, kernel test robot wrote:
> tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> head: b81b1829e7e39f6cebdf6e4d5484eacbceda8554
> commit: 5f6e0fe01b6b33894cf6f61b359ab5a6d2b7674e parisc: Fix compile failure when
building 64-bit kernel natively
> date: 6 months ago
> config: parisc-randconfig-r004-20220213
(https://download.01.org/0day-ci/archive/20220213/202202131741.c6BPpfzd-lk...)
> compiler: hppa64-linux-gcc (GCC) 11.2.0
> 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
> #
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit...
> git remote add linus
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
> git fetch --no-tags linus master
> git checkout 5f6e0fe01b6b33894cf6f61b359ab5a6d2b7674e
> # save the config file to linux build tree
> mkdir build_dir
> COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir
ARCH=parisc prepare
>
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot <lkp(a)intel.com>
>
> All error/warnings (new ones prefixed by >>):
>
> In file included from arch/parisc/include/asm/bitops.h:203,
> from include/linux/bitops.h:32,
> from include/linux/kernel.h:12,
> from arch/parisc/include/asm/bug.h:5,
> from include/linux/bug.h:5,
> from include/linux/page-flags.h:10,
> from kernel/bounds.c:10:
> include/asm-generic/bitops/__fls.h: In function '__fls':
>>> include/asm-generic/bitops/__fls.h:18:28: warning: left shift count >=
width of type [-Wshift-count-overflow]
> 18 | if (!(word & (~0ul << 32))) {
This kind of build error usually happens if you use the 64-bit compiler
(hppa64-linux-gcc) to compile a kernel config for a 32-bit kernel.
Looking at the config:
> config: parisc-randconfig-r004-20220213
(https://download.01.org/0day-ci/archive/20220213/202202131741.c6BPpfzd-lk...)
CONFIG_64BIT is set to Y, so that's correct here.
But this is how you call the compiler:
> COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir
ARCH=parisc prepare
The "ARCH=parisc" is wrong in this case.
You need:
"ARCH=parisc64".
This is starting with Linux kernel 5.14.
Before "ARCH=parisc" worked for 32- and 64-bit kernels.
Can you adjust the call command?
Hi Helge,
Thanks for the feedback, we'll update it.
Best Regards,
Rong Chen