Re: hppa vDSO and compiler (non-)support

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On 3/22/22 10:19, Jiri Slaby wrote:
> Hello,
>
> On 21. 03. 22, 19:51, Helge Deller wrote:
>> * Jiri Slaby <jirislaby@xxxxxxxxxx>:
>>> On 09. 03. 22, 6:48, Jiri Slaby wrote:
>>>> On 08. 03. 22, 15:51, Helge Deller wrote:
>>>>> On 3/8/22 12:06, Jiri Slaby wrote:
>>>>>> since the "parisc: Add vDSO support" commit, I can no longer
>>>>>> cross-build a hppa kernel. I see two issues:
>>>>>>
>>>>>> 1) CROSS32_COMPILE detection doesn't work here, as openSUSE
>>>>>> provides hppa-suse-linux-* binaries. It's easy to overcome by
>>>>>> "CROSS32_COMPILE=hppa-suse-linux-"
>>>>>
>>>> ...
>>>>> Would it make sense to add the detection for SUSE too?
>>>
>>> So, could 1) be fixed on the Kconfig side? Or should I (people running SUSE)
>>> use "CROSS32_COMPILE=hppa-suse-linux-"?
>>
>> Could you please try if this patch fixes it for you?
>
> Works like a charm:
> $ make V=1 O=../a/arch/parisc/ ARCH=parisc -j6 drivers/tty/serial/mux.o
> ...
>>  hppa-suse-linux-gcc <flags deleted> -o drivers/tty/serial/mux.o /home/latest/linux/drivers/tty/serial/mux.c
>>  if hppa-suse-linux-objdump -h drivers/tty/serial/mux.o | ...; fi
>
> Thanks.

Great!
I've queued up a patch in for-next...

Helge


>
>> diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
>> index 2a9387a93592..7583fc39ab2d 100644
>> --- a/arch/parisc/Makefile
>> +++ b/arch/parisc/Makefile
>> @@ -42,7 +42,7 @@ export LD_BFD
>>
>>   # Set default 32 bits cross compilers for vdso
>>   CC_ARCHES_32 = hppa hppa2.0 hppa1.1
>> -CC_SUFFIXES  = linux linux-gnu unknown-linux-gnu
>> +CC_SUFFIXES  = linux linux-gnu unknown-linux-gnu suse-linux
>>   CROSS32_COMPILE := $(call cc-cross-prefix, \
>>       $(foreach a,$(CC_ARCHES_32), \
>>       $(foreach s,$(CC_SUFFIXES),$(a)-$(s)-)))
>> @@ -52,7 +52,7 @@ export CROSS32CC
>>   # Set default cross compiler for kernel build
>>   ifdef cross_compiling
>>       ifeq ($(CROSS_COMPILE),)
>> -        CC_SUFFIXES = linux linux-gnu unknown-linux-gnu
>> +        CC_SUFFIXES = linux linux-gnu unknown-linux-gnu suse-linux
>>           CROSS_COMPILE := $(call cc-cross-prefix, \
>>               $(foreach a,$(CC_ARCHES), \
>>               $(foreach s,$(CC_SUFFIXES),$(a)-$(s)-)))
>





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