Re: [REGRESSION] mainline/master: (build) in arch/arm/kernel/entry-common.o (/tmp/kci/linux/scripts/Makefile...

On 8/20/26 02:09, Nathan Chancellor wrote:
> On Wed, Aug 19, 2026 at 11:08:39AM +0300, Ard Biesheuvel wrote:
>> We're falling back to the mov_l asm macro in this case.
>>
>> This is unfortunate, because the only reason to avoid these group
>> relocations is making allyesconfig work, now that LLD has caught up.
>>
>> I did not manage to reproduce this, but if this is something we care
>> deeply about, we might tweak mov_l as below when COMPILE_TEST is set,
>> so that the literal pool is always in range.
> 
> I am not sure that we do, at least currently, since Arnd's patch to turn
> off OABI compat for everything but StrongARM has now landed in mainline,
> getting rid of the originally reported error.

Grea. Nathan, Ard, many thx for looking into this!

> If this error comes back, we could look at a better fix.

+1 -- not sure, but even that might only be worth it if more than just
one CI runs into the problem in a particular test case.

Ciao, Thorsten
>> --- a/arch/arm/include/asm/assembler.h
>> +++ b/arch/arm/include/asm/assembler.h
>> @@ -636,6 +636,12 @@
>>         .macro          mov_l, dst:req, imm:req, cond
>>         .if             __LINUX_ARM_ARCH__ < 7
>>         ldr\cond        \dst, =\imm
>> +#ifdef CONFIG_COMPILE_TEST
>> +       /* The literal may go out of range in pathological cases */
>> +       b               .L\@
>> +       .ltorg
>> +.L\@:
>> +#endif
>>         .else
>>         movw\cond       \dst, #:lower16:\imm
>>         movt\cond       \dst, #:upper16:\imm
> 

#regzbot resolve: commit 25900bd99d4d avoids this error by disabling
CONFIG_OABI_COMPAT for allmodconfig