gcc-4.3.0-0.4 and building kernel src.rpm

[John Summerfield]

gjohnson5 wrote:
> I am using gcc-4.3.0-0.4 with glibc-2.7.90-3 (not sure if that matters) with
> rawhide and I am getting this building kernel-2.6.23.12-101.fc8
> 
> drivers/video/cfbimgblt.c:129:12: warning: cast adds address space to
> expression (<asn:2>)
>   CHK     include/linux/compile.h
>   UPD     include/linux/compile.h
> init/version.c:19:5: warning: symbol 'Version_132631' was not declared.
> Should it be static?
> kernel/built-in.o: In function `getnstimeofday':
> (.text+0x1d525): undefined reference to `__umoddi3'
> kernel/built-in.o: In function `do_gettimeofday':
> (.text+0x1d5ef): undefined reference to `__udivdi3'
> kernel/built-in.o: In function `do_gettimeofday':
> (.text+0x1d612): undefined reference to `__umoddi3'
> kernel/built-in.o: In function `timekeeping_resume':
> timekeeping.c:(.text+0x1d7dd): undefined reference to `__udivdi3'
> timekeeping.c:(.text+0x1d800): undefined reference to `__umoddi3'
> kernel/built-in.o: In function `update_wall_time':
> (.text+0x1de63): undefined reference to `__udivdi3'
> kernel/built-in.o: In function `update_wall_time':
> (.text+0x1de86): undefined reference to `__umoddi3'
> kernel/built-in.o: In function `update_wall_time':
> (.text+0x1df24): undefined reference to `__udivdi3'
> kernel/built-in.o: In function `update_wall_time':
> (.text+0x1df4e): undefined reference to `__umoddi3'
> make: *** [.tmp_vmlinux1] Error 1
> error: Bad exit status from /var/tmp/rpm-tmp.80567 (%build)
> 
> 
> I was under the impression that those math functions were provided by libgcc
> so I was assuming it was the compiler with the issue.  So , I'm just
> wondering what is broken

1. the kernel does not use any libraries external to itself; those 
external libraries include userland->kernel interfaces, and those are 
not what the kernel requires.
2. Did you read your kernel's documentation to see what tools you might 
use? Using an unsupported compiler is problematic.



-- 

Cheers
John

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