linux-yocto: locate and use out of tree features specified on the SRC_URI

In a similar manner to calling the patch.bbclass to locate patches that
were listed on the SRC_URI, it is also useful to query about 'other' items
that are on the SRC_URI. In the case of linux-yocto, it allows us to
know about kernel features that were specific on the URI and then apply
them to the current tree.

(From OE-Core rev: 3e2ce87566124db8c78472f9a4f00ab26410f213)

Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 21 insertions, 0 deletions

diff --git a/meta/classes/kernel-yocto.bbclass b/meta/classes/kernel-yocto.bbclass
index 7fdefcf221..3130bf4512 100644
--- a/meta/classes/kernel-yocto.bbclass
+++ b/meta/classes/kernel-yocto.bbclass
@@ -10,6 +10,16 @@ def find_patches(d):
 
         return patch_list
 
+def find_sccs(d):
+        sources=src_patches(d, True)
+        sources_list=[]
+        for s in sources:
+                base, ext = os.path.splitext(os.path.basename(s))
+                if ext and ext in ('.scc'):
+                        sources_list.append(s)
+
+        return sources_list
+
 do_patch() {
         cd ${S}
         if [ -f ${WORKDIR}/defconfig ]; then
@@ -42,6 +52,7 @@ do_patch() {
         fi
 
         patches="${@" ".join(find_patches(d))}"
+        sccs="${@" ".join(find_sccs(d))}"
 
         # This loops through all patches, and looks for directories that do
         # not already have feature descriptions. If a directory doesn't have
@@ -81,6 +92,16 @@ do_patch() {
                 fi
         done
 
+        # look for any found scc files, and ensure they are added to the list
+        # of directories passsed to updateme
+        for s in ${sccs}; do
+                sdir=`dirname ${s}`
+                echo ${patch_dirs} | grep -q ${sdir}
+                if [ $? -ne 0 ]; then
+                        patch_dirs="${patch_dirs} ${sdir}"
+                fi
+        done
+
         # go through the patch directories and look for any scc feature files
         # that were constructed above. If one is found, rename it to ".scc" so
         # the kernel patching can see it.