[poky] Installing GDB or the saga of getting RPM/Zypp to run on JFFS2

[Mark Hatle]

On 7/3/11 7:28 AM, Holger Hans Peter Freyther wrote:
> On 07/01/2011 03:44 PM, Mark Hatle wrote:
> 
>>
>> macro files are being loaded from:
>>
>> %{_usrlibrpm}/macros:%{_usrlibrpm}/poky/macros:%{_usrlibrpm}/poky/%{_target}/macros:%{_etcrpm}/macros.*:%{_etcrpm}/macros:%{_etcrpm}/%{_target}/macros:~/.oerpmmacros
>>
>> The key above is the /etc/rpm/macros.*
>>
>> I would recommend a new file be generated called /etc/rpm/macros.jffs2 that
>> changes the setting as appropriate for that filesystem.  (How it's placed into
>> the filesystem I'm not sure.  I think it all comes down to detecting we're
>> building a jffs2 filesystem and doing it there.  Perhaps in the rootfs_rpm.bbclass?)
> 
> What do you think about something like the change below? Alternatively one
> could write a post-inst script that checks if one is on jffs2 and then creates
> the config file.

Sorry for the late reply.  I'm back from vacation now.

The below is fine with me.  I suggest it be submitted as a patch to oe-core.
I'll be happy to ack it.

--Mark

> 
> diff --git a/meta/classes/rootfs_rpm.bbclass b/meta/classes/rootfs_rpm.bbclass
> index 3a11858..70459e5 100644
> --- a/meta/classes/rootfs_rpm.bbclass
> +++ b/meta/classes/rootfs_rpm.bbclass
> @@ -139,6 +139,14 @@ EOF
>         install -d ${IMAGE_ROOTFS}/${sysconfdir}
>         echo ${BUILDNAME} > ${IMAGE_ROOTFS}/${sysconfdir}/version
> 
> +
> +       # check if there is a jffs2 install, it requires a workaround
> +       # due lacking support for MMAP read/write.
> +       (echo "${IMAGE_FSTYPES}" | grep "jffs2" > /dev/null)
> +       if [ $? == 0 ]; then
> +               echo "%__dbi_txn      create lock log txn auto_commit nommap
> private" > ${IMAGE_ROOTFS}/etc/rpm/macros.jffs2
> +       fi
> +
>         ${RPM_POSTPROCESS_COMMANDS}
>         ${ROOTFS_POSTPROCESS_COMMAND}
> 
> @@ -164,6 +172,7 @@ EOF
>  }
> 
>  remove_packaging_data_files() {
> +       rm -rf ${IMAGE_ROOTFS}/etc/rpm/macros.jffs2
>         rm -rf ${IMAGE_ROOTFS}${rpmlibdir}
>         rm -rf ${IMAGE_ROOTFS}${opkglibdir}
>  }
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