kernel bbclass: Recreate uImage only when KEEPUIMAGE != "yes"

The intent of the uImage code in this class includes the following

1) be able to specify custom load addresses without needing to patch the kernel
2) add better information to the uImage description field

The current state is a NOP anyway, the kernel will always build a uImage when you tell it to 'make uImage'.

weakly Set KEEPUIMAGE to 'yes' in default-distrovars.inc which preserve the
current OE-Core behavior. Machines which are being ported from oe.dev and need to
regenerate uImage can set this to be empty

(From OE-Core rev: 72a7049526ee107005bd39c7bdd814ed71345829)

Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>
Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

2 files changed, 2 insertions, 1 deletions

diff --git a/meta/classes/kernel.bbclass b/meta/classes/kernel.bbclass
index ce4d7de01c..ab984e3e88 100644
--- a/meta/classes/kernel.bbclass
+++ b/meta/classes/kernel.bbclass
@@ -507,7 +507,7 @@ KERNEL_IMAGE_SYMLINK_NAME ?= "${KERNEL_IMAGETYPE}-${MACHINE}"
 
 do_uboot_mkimage() {
         if test "x${KERNEL_IMAGETYPE}" = "xuImage" ; then 
-                if test ! -e arch/${ARCH}/boot/uImage ; then
+                if test "x${KEEPUIMAGE}" != "xyes" ; then
                         ENTRYPOINT=${UBOOT_ENTRYPOINT}
                         if test -n "${UBOOT_ENTRYSYMBOL}"; then
                                 ENTRYPOINT=`${HOST_PREFIX}nm ${S}/vmlinux | \
diff --git a/meta/conf/distro/include/default-distrovars.inc b/meta/conf/distro/include/default-distrovars.inc
index f7709196cb..ef8232d19c 100644
--- a/meta/conf/distro/include/default-distrovars.inc
+++ b/meta/conf/distro/include/default-distrovars.inc
@@ -2,6 +2,7 @@ QA_LOGFILE = "${TMPDIR}/qa.log"
 
 OEINCLUDELOGS ?= "yes"
 KERNEL_CONSOLE ?= "ttyS0"
+KEEPUIMAGE ??= "yes"
 
 PCMCIA_MANAGER ?= "pcmciautils"