[OE-core] [PATCH v2] classes/kernel: fix symlink logic when bundling initramfs images

[André Draszik]

From: André Draszik <adraszik at tycoint.com>

If linkpath points to the a file in KERNEL_OUTPUT_DIR, rather than
outside, then symlink creation for the bundled initramfs image files
fails.

This is because in that case $linkpath.initramfs and $realpath.initramfs
are in the same directory, KERNEL_OUTPUT_DIR, and hence are the same.
Since we just created $realpath.initramfs, creating a symlink with the
same name will fail.

Given that $linkpath is not necessarily the same as the kernel image type,
just removing this symlink creation is not the right thing to do, as
in that case kernel_do_deploy() wouldn't find the bundled file.

What we really want is a symlink from the name of the initramfs-bundled
kernel image type to the real initramfs-bundled kernel image, as that is
what is actually used later in do_deploy().

This brings the code path for when $KERNEL_OUTPUT_DIR/$type is a symlink
in line with when it is not.

Signed-off-by: André Draszik <adraszik at tycoint.com>
---
 meta/classes/kernel.bbclass | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/meta/classes/kernel.bbclass b/meta/classes/kernel.bbclass
index 3127590..a56b66b 100644
--- a/meta/classes/kernel.bbclass
+++ b/meta/classes/kernel.bbclass
@@ -232,8 +232,7 @@ do_bundle_initramfs () {
 			if [ -n "$realpath" ]; then
 				mv -f $realpath $realpath.initramfs
 				mv -f $realpath.bak $realpath
-				cd ${B}/${KERNEL_OUTPUT_DIR}
-				ln -sf $linkpath.initramfs
+				ln -sf $linkpath.initramfs ${B}/${KERNEL_OUTPUT_DIR}/$type.initramfs
 			else
 				mv -f ${KERNEL_OUTPUT_DIR}/$type ${KERNEL_OUTPUT_DIR}/$type.initramfs
 				mv -f ${KERNEL_OUTPUT_DIR}/$type.bak ${KERNEL_OUTPUT_DIR}/$type
-- 
2.8.1