Re: [PATCH v3 1/3] kbuild: Add __cc-option macro

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Hi Matthias,


Sorry, the code I suggested introduced a slight behavior change.

With this patch, cc-option adds a space before the returned option.


Please see line 46 of arch/sh/Makefile.

ifeq ($(cflags-y),)


Now cflags-y contains a space, so
this conditional is now evaluated as false,
which was actually true without the patch.
This is the cause of the build error.


Could you remove whitespaces before $(1) and $(2) in cc-option?

Also, please fix hostcc-option as well.

Thanks!






2017-06-18 15:58 GMT+09:00 kbuild test robot <lkp@xxxxxxxxx>:
> Hi Matthias,
>
> [auto build test ERROR on tip/auto-latest]
> [also build test ERROR on v4.12-rc5 next-20170616]
> [if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
>
> url:    https://github.com/0day-ci/linux/commits/Matthias-Kaehlcke/kbuild-Add-__cc-option-macro/20170616-082252
> config: sh-sh7710voipgw_defconfig (attached as .config)
> compiler: sh4-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705
> reproduce:
>         wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
>         chmod +x ~/bin/make.cross
>         # save the attached .config to linux build tree
>         make.cross ARCH=sh
>
> All errors (new ones prefixed by >>):
>
>    {standard input}: Assembler messages:
>>> {standard input}:672: Error: invalid operands for opcode
>    {standard input}:673: Error: opcode not valid for this cpu variant
>    {standard input}:674: Error: opcode not valid for this cpu variant
>    {standard input}:675: Error: invalid operands for opcode
>    {standard input}:1900: Error: invalid operands for opcode
>    {standard input}:1901: Error: opcode not valid for this cpu variant
>    {standard input}:1902: Error: opcode not valid for this cpu variant
>    {standard input}:1903: Error: invalid operands for opcode
>    {standard input}:2067: Error: invalid operands for opcode
>    {standard input}:2068: Error: opcode not valid for this cpu variant
>    {standard input}:2069: Error: opcode not valid for this cpu variant
>    {standard input}:2070: Error: invalid operands for opcode
>    {standard input}:2570: Error: invalid operands for opcode
>    {standard input}:2571: Error: opcode not valid for this cpu variant
>    {standard input}:2572: Error: opcode not valid for this cpu variant
>    {standard input}:2573: Error: invalid operands for opcode
>
> ---
> 0-DAY kernel test infrastructure                Open Source Technology Center
> https://lists.01.org/pipermail/kbuild-all                   Intel Corporation



-- 
Best Regards
Masahiro Yamada
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