image.bbclass: Add support to build the SDK in parallel with the image

When building an image recipe, you can now build a companion SDK by
calling the populate_sdk task:
  bitbake -c populate_sdk core-image-minimal

Note: there are still issues w/ the SDK not working completely with
multilibs.

A lock is required between rootfs and populate_sdk activities to prevent
configuration file clashes and similar package management problems in ipk
and deb based systems.  (RPM already had a lock for a different reason.)

(From OE-Core rev: a0de2a56f19ae4d8cd88e46e96917a7a019fe1ab)

Signed-off-by: Mark Hatle <mark.hatle@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/meta/classes/populate_sdk_base.bbclass b/meta/classes/populate_sdk_base.bbclass
index 6dc66fbbbe..ed2dca0780 100644
--- a/meta/classes/populate_sdk_base.bbclass
+++ b/meta/classes/populate_sdk_base.bbclass
@@ -120,6 +120,7 @@ populate_sdk_log_check() {
         done
 }
 
+do_populate_sdk[dirs] = "${TOPDIR}"
 do_populate_sdk[nostamp] = "1"
 do_populate_sdk[depends] = "${@' '.join([x + ':do_populate_sysroot' for x in d.getVar('SDK_DEPENDS', True).split()])}"
 do_populate_sdk[rdepends] = "${@' '.join([x + ':do_populate_sysroot' for x in d.getVar('SDK_RDEPENDS', True).split()])}"