2.4.21-rc1-ac3: unresolved symbol only with gcc-3.3

2.4.21-rc1-ac3: unresolved symbol only with gcc-3.3

[Axel Siebenwirth]

Hi,

today I have successfully built 2.4.21-rc1-ac3 with gcc-3.2.3. Everything
was fine.
Then I built with gcc-3.3 and I encountered an error:

net/network.o(.text+0xdcd7): In function `rtnetlink_rcv':
: undefined reference to `rtnetlink_rcv_skb'

This build error only occurs with gcc-3.3.

Can somebody who knows the kernel look whether the error is legitimate or 
gcc is making errors.

Regards,
Axel Siebenwirth

Re: 2.4.21-rc1-ac3: unresolved symbol only with gcc-3.3

[Nicholas Wourms]

Axel Siebenwirth wrote:
> Hi,
> 
> today I have successfully built 2.4.21-rc1-ac3 with gcc-3.2.3. Everything
> was fine.
> Then I built with gcc-3.3 and I encountered an error:
> 
> net/network.o(.text+0xdcd7): In function `rtnetlink_rcv':
> : undefined reference to `rtnetlink_rcv_skb'
> 
> This build error only occurs with gcc-3.3.
> 
> Can somebody who knows the kernel look whether the error is legitimate or 
> gcc is making errors.

I'm not sure if this is necessarily the right way, but 
changing the declaration for rtnetlink_rcv_skb() in 
net/core/rtnetlink.c from "extern" to "static" seems to have 
fixed the problem for me.  In any case, I couldn't find any 
external references to that function, so it seems to me that 
this is the way to go.

Cheers,
Nicholas

Re: 2.4.21-rc1-ac3: unresolved symbol only with gcc-3.3

[James Courtier-Dutton]

Nicholas Wourms wrote:

> Axel Siebenwirth wrote:
>
>> Hi,
>>
>> today I have successfully built 2.4.21-rc1-ac3 with gcc-3.2.3. 
>> Everything
>> was fine.
>> Then I built with gcc-3.3 and I encountered an error:
>>
>> net/network.o(.text+0xdcd7): In function `rtnetlink_rcv':
>> : undefined reference to `rtnetlink_rcv_skb'
>>
>> This build error only occurs with gcc-3.3.
>>
>> Can somebody who knows the kernel look whether the error is 
>> legitimate or gcc is making errors.
>
>
> I'm not sure if this is necessarily the right way, but changing the 
> declaration for rtnetlink_rcv_skb() in net/core/rtnetlink.c from 
> "extern" to "static" seems to have fixed the problem for me.  In any 
> case, I couldn't find any external references to that function, so it 
> seems to me that this is the way to go.
>
> Cheers,
> Nicholas
>
>
Please ignore my last email. I in fact did the same as Nicholas and it 
fixed it for me.
I also had a problem in the reiserfs module, with a kprintf statement 
format string spread over two lines. Removing what looked like a 
misplaced newline fixed it.

Cheers
James

Re: 2.4.21-rc1-ac3: unresolved symbol only with gcc-3.3

[James Courtier-Dutton]

Axel Siebenwirth wrote:

>Hi,
>
>today I have successfully built 2.4.21-rc1-ac3 with gcc-3.2.3. Everything
>was fine.
>Then I built with gcc-3.3 and I encountered an error:
>
>net/network.o(.text+0xdcd7): In function `rtnetlink_rcv':
>: undefined reference to `rtnetlink_rcv_skb'
>
>This build error only occurs with gcc-3.3.
>
>Can somebody who knows the kernel look whether the error is legitimate or 
>gcc is making errors.
>
>Regards,
>Axel Siebenwirth
>-
>  
>
I received this same error building kernel 2.4.20 with gcc-3.3
If I re-did the config to make everything modules, instead of compiled 
in the kernel, the error was removed.
Cheers
James