Re: [built failure] aicdb.h / __udivdi3

[Randy Dunlap]

Hi--

On 9/22/26 11:13 AM, Manuel Ebner wrote:
> Hi,
> 
> I did some built testing with randconf and got some build errors.
> 
> First error is:
> 
>> $ make KCFLAGS=-Werror -j8 > make_output.txt
>> aicasm_symbol.c:47:10: fatal error: aicdb.h: No such file or directory
>>    47 | #include "aicdb.h"
>>       |          ^~~~~~~~~
> 
> This could be fixed by installing libdb-devel.
> But than I got this error with the same configuration:
> 
>> $ make KCFLAGS=-Werror -j8 > make_output.txt
>> date
>> drivers/scsi/aic7xxx/aicasm/aicasm: 880 instructions used
>> drivers/scsi/aic7xxx/aicasm/aicasm: 25 of 37 register definitions used
>> /usr/bin/ld.bfd: fs/exfat/super.o: in function `exfat_set_vol_flags.isra.0':
>> super.c:(.text+0x622): undefined reference to `__udivdi3'
>> make[2]: *** [scripts/Makefile.vmlinux:72: vmlinux.unstripped] Error 1
>> make[1]: *** [/home/manuel/skripts/next/Makefile:1390: vmlinux] Error 2
>> make: *** [Makefile:248: __sub-make] Error 2
> 
> What can I do about it?
> Is it me/ my system or the kernel?

For the fs/exfat/ build error:

What is the target (x86_64, i386, arm64, arm, etc.)?
What is the compiler and its version?

That error usually means that the target is a 32-bit CPU
and the code in question is doing an unsupported divide or
modulus function.

It possibly should be using a kernel macro from <linux/math.h>
or other headers.

-- 
~Randy