Re: undefined references to __udivdi3 on powerpc

Adrian Bunk
2008-02-29T06:57:58Z

On Thu, Feb 28, 2008 at 02:37:18PM +0100, Olaf Hering wrote:
>
> While debugging __divdi3 calls in drivers/crypto/hifn_795x.c (due to the
> ndelay() delay call with a s64), I found even more breakage of that
> sort. This is after a allnoconfig with ARCH=powerpc in 2.6.25-rc3,
> plus CONFIG_MODULES=y and CONFIG_CRYPTO_DEV_HIFN_795X=y:
>
> LD .tmp_vmlinux1
> kernel/built-in.o: In function `update_xtime_cache':
> (.text+0x221a0): undefined reference to `__umoddi3'
> kernel/built-in.o: In function `update_xtime_cache':
> (.text+0x221c0): undefined reference to `__udivdi3'
> kernel/built-in.o: In function `getnstimeofday':
> (.text+0x22330): undefined reference to `__umoddi3'
> kernel/built-in.o: In function `getnstimeofday':
> (.text+0x22350): undefined reference to `__udivdi3'
> kernel/built-in.o: In function `timekeeping_resume':
> timekeeping.c:(.text+0x226a0): undefined reference to `__udivdi3'
> timekeeping.c:(.text+0x22778): undefined reference to `__umoddi3'
> timekeeping.c:(.text+0x22798): undefined reference to `__udivdi3'
> kernel/built-in.o: In function `update_wall_time':
> (.text+0x22c7c): undefined reference to `__umoddi3'
> kernel/built-in.o: In function `update_wall_time':
> (.text+0x22c9c): undefined reference to `__udivdi3'
> kernel/built-in.o: In function `update_wall_time':
> (.text+0x230f8): undefined reference to `__umoddi3'
> kernel/built-in.o: In function `update_wall_time':
> (.text+0x23118): undefined reference to `__udivdi3'
> kernel/built-in.o: In function `do_settimeofday':
> (.text+0x23520): undefined reference to `__udivdi3'
> kernel/built-in.o: In function `timekeeping_init':
> (.init.text+0x1870): undefined reference to `__udivdi3'
> make[1]: *** [.tmp_vmlinux1] Error 1
>
> But its not a regression, 2.6.24 allnoconfig does not link either on
> powerpc32.
>...

You didn't mention your gcc version, but you should only get these
errors when using the not yet released gcc 4.3.

And this issue is known for at about half a year.

> Olaf

cu
Adrian

--

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"Only a promise," Lao Er said.
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