kernel: Ensure an initramfs is added if configured

If ${DEPLOY_DIR_IMAGE}/${INITRAMFS_IMAGE_NAME}.cpio does not exist,
nor any of the compressed variants, nothing is copied to kernel build's
./usr directory.

The code does not fail, but silently proceeds without a bundled initramfs.

Change to fail and tell the user something is wrong.

Also, if an initramfs is found, contrary to the comments, it does not stop
at the first uncompressed/compressed cpio image found. Instead it keeps
processing all so the last is used. Fix this to behave as per the comments.

[YOCTO #12909]

(Patch by Leon Woestenberg)

(From OE-Core rev: 5b5604e288af755eb5553a97d26533445b2cf94b)

(From OE-Core rev: 378f720090508d5c8c04f1b0265ba729f6ce827b)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Signed-off-by: Armin Kuster <akuster808@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 3 insertions, 1 deletions

diff --git a/meta/classes/kernel.bbclass b/meta/classes/kernel.bbclass
index 45cb4fabc1..bd185e258e 100644
--- a/meta/classes/kernel.bbclass
+++ b/meta/classes/kernel.bbclass
@@ -224,9 +224,11 @@ copy_initramfs() {
                                 break
                                 ;;
                         esac
+                        break
                 fi
         done
-        echo "Finished copy of initramfs into ./usr"
+        # Verify that the above loop found a initramfs, fail otherwise
+        [ -f ${B}/usr/${INITRAMFS_IMAGE_NAME}.cpio ] && echo "Finished copy of initramfs into ./usr" || die "Could not find any ${DEPLOY_DIR_IMAGE}/${INITRAMFS_IMAGE_NAME}.cpio{.gz|.lz4|.lzo|.lzma|.xz) for bundling; INITRAMFS_IMAGE_NAME might be wrong."
 }
 
 do_bundle_initramfs () {