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Re: Kernel build fails with GCC 4.3



On 02/01/2008 05:17 PM, Jan Kratochvil wrote:
> On Fri, 01 Feb 2008 22:06:29 +0100, Chuck Ebbert wrote:
> ...
>> And, after fixing that one we get (on ppc):
>>
>> *** ERROR: same build ID in nonidentical files!
>>         /usr/lib/debug/lib/modules/2.6.24-14.fc9/vmlinux
>>    and  /boot/vmlinuz-2.6.24-14.fc9
> 
> Currently:
> 
> vmlinuz-$VER: Not marked as executable and therefore not splitted into
>               binary + .debug 
> vmlinux: Copied directly into /usr/lib/debug and therefore its stripped part is
>          duplicite to the vmlinuz-$VER one
> 
> Proposing:
> 
> vmlinuz-$VER: Marked as executable, split into a separete vmlinuz-$VER.debug
> vmlinux: Just a symlink into vmlinuz-$VER, GDB will load the vmlinuz-$VER.debug
>          file for it.  This symlink could be dropped but some tools may expect
>          the /lib/modules/$VER/vmlinux file to exist.  Still they will now have
>          to deal with the split binary + .debug file for it.
> 
> If you agree I can test if it works well, it takes a lot of time to build it.
> 
> 
> 
> Regards,
> Jan
> 
> 
> ------------------------------------------------------------------------
> 
> --- kernel.spec	1 Feb 2008 17:45:46 -0000	1.398
> +++ kernel.spec	1 Feb 2008 22:10:44 -0000
> @@ -1422,8 +1422,14 @@ BuildKernel() {
>      # save the vmlinux file for kernel debugging into the kernel-debuginfo rpm
>      #
>  %if %{with_debuginfo}
> -    mkdir -p $RPM_BUILD_ROOT%{debuginfodir}/lib/modules/$KernelVer
> -    cp vmlinux $RPM_BUILD_ROOT%{debuginfodir}/lib/modules/$KernelVer
> +    if [ $KernelImage != vmlinux ]; then
> +      mkdir -p $RPM_BUILD_ROOT%{debuginfodir}/lib/modules/$KernelVer
> +      cp vmlinux $RPM_BUILD_ROOT%{debuginfodir}/lib/modules/$KernelVer
> +    else
> +      # mark it executable so that strip-to-file can strip it
> +      chmod u+x $RPM_BUILD_ROOT/%{image_install_path}/vmlinuz-$KernelVer
> +      ln -s %{image_install_path}/vmlinuz-$KernelVer $RPM_BUILD_ROOT%{debuginfodir}/lib/modules/$KernelVer/vmlinux
> +    fi 
>  %endif
>  
>      find $RPM_BUILD_ROOT/lib/modules/$KernelVer -name "*.ko" -type f >modnames

Roland is looking into this; I added a cc: for him.


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