Kernel build fails with GCC 4.3
Chuck Ebbert
cebbert at redhat.com
Fri Feb 1 22:21:48 UTC 2008
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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