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, 2 insertions, 0 deletions

diff --git a/meta/classes/populate_sdk_deb.bbclass b/meta/classes/populate_sdk_deb.bbclass
index c3b3e0cde1..9e9e1e1d8b 100644
--- a/meta/classes/populate_sdk_deb.bbclass
+++ b/meta/classes/populate_sdk_deb.bbclass
@@ -6,6 +6,8 @@ DEB_SDK_ARCH = "${@[d.getVar('SDK_ARCH', True), "i386"]\
                 [d.getVar('SDK_ARCH', True) in \
                 ["x86", "i486", "i586", "i686", "pentium"]]}"
 
+do_populate_sdk[lockfiles] += "${WORKDIR}/deb.lock"
+
 populate_sdk_post_deb () {
 
         local target_rootfs=$1