[oe] Staging changes

[Michael 'Mickey' Lauer]

Richard Purdie wrote:
> At OEDEM, there was basic agreement amongst the core devs that OE's
> current staging needs to evolve.

> The aim of this evolution is to head towards a staging that looks like
> the target system. This allows using the sysroot options of gcc/binutils
> to help us remove hacks like the symlinks in cross and the sed "magic"
> in pkgconfig.bbclass. In the future is could also lead to a staging task
> which just copies files from ${WORKDIR}/image to staging, speeding up
> builds a lot (make install is slow) as well as giving much more
> possibilities to packaged staging.

> I've had this working up to image generation with Poky. It does work and
> does lead to clean easier to understand build structures. I've pulled
> out a subset of my patches to Poky and checked them into OE. So far
> there are no behaviour changes, just several new variables become
> available to help us try and clean up the current staging references in
> the metadata.

> An example of these cleanups are those I've made to gnome-common as a
> random example:

> --- gnome-common_2.20.0.bb      (revision 2988)
> +++ gnome-common_2.20.0.bb      (working copy)
> @@ -19,7 +19,7 @@
>         rm -rf ${STAGE_TEMP}
>         mkdir -p ${STAGE_TEMP}
>         make DESTDIR="${STAGE_TEMP}" install
> -       cp -pPR ${STAGE_TEMP}${bindir}/* ${STAGING_DIR}/${BUILD_SYS}/bin
> +       cp -pPR ${STAGE_TEMP}${bindir}/* ${STAGING_BINDIR_NATIVE}
>         install -d ${STAGING_DATADIR}/gnome-common
>         install -d ${STAGING_DATADIR}/aclocal
>         cp -pPR ${STAGE_TEMP}${datadir}/gnome-common/* ${STAGING_DATADIR}/gnome-common

> Why? This will break if we switch to /usr/bin...

> The next step is to go through the metadata doing one of two things:

> * correcting things where we have variables we can use
> * listing problem areas (e.g. gcc configure options)

> Bad references which can be grepped for are:

> ${STAGING_DIR}/${BUILD_SYS}
> ${STAGING_DIR}/${HOST_SYS}
> ${STAGING_LIBDIR}/.. (anything with a .. in is likely to cause problems)
> ${STAGING_DIR}

> Python and Perl look like they're going to need special attention.

Right. Basically you have broken everything distutils with some of
these patches :D

Regards,

:M:
-- 
Michael 'Mickey' Lauer | IT-Freelancer | http://www.vanille-media.de