Create config fragment if the user makes modifications to kernel config.
User may change .config e.g. by directly editing it or by running the
'do_menuconfig' bitbake task. Devtool generates one monolithic fragment
by simply doing a diff between .config and .config.baseline files in the
source directory. If either of these files is missing, the config
fragment is not gerenrated or updated. The output is a file,
'devtool-fragment.cfg' that gets added to SRC_URI in the recipe (as well
as copied into the 'oe-local-files' directory if that is present in the
source tree).
${S}/.config will be a symlink to ${B}/.config. We need to do this as
devtool is not able to access ${B} because ${B} is set in a .bbappend in
the workspace layer which is not parsed by devtool itself.
[YOCTO #8999]
Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com> Signed-off-by: Ross Burton <ross.burton@intel.com>
