devtool: extract: copy kernel config to srctree

This makes the correct kernel config to be used when building kernel
from srctree (extrernalsrc). If no kernel config is present in the
builddir 'do_configure' task copies .config from the srctree.

(From OE-Core master rev: 3b516332e038a587685f6e0c14a7f04990bdd6cc)

(From OE-Core rev: 32593f2b6a44a7bfdab55aec7e172476020fd4eb)

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 6 insertions, 0 deletions

diff --git a/scripts/lib/devtool/standard.py b/scripts/lib/devtool/standard.py
index 5464d7b1f2..1437e7c52a 100644
--- a/scripts/lib/devtool/standard.py
+++ b/scripts/lib/devtool/standard.py
@@ -435,6 +435,12 @@ def _extract_source(srctree, keep_temp, devbranch, d):
             logger.info('Adding local source files to srctree...')
             shutil.move(os.path.join(tempdir, 'oe-local-files'), srcsubdir)
 
+        if bb.data.inherits_class('kernel-yocto', d):
+            # Store generate and store kernel config
+            logger.info('Generating kernel config')
+            task_executor.exec_func('do_configure', False)
+            kconfig = os.path.join(d.getVar('B', True), '.config')
+            shutil.copy2(kconfig, srcsubdir)
 
         shutil.move(srcsubdir, srctree)
     finally: