path: root/meta/classes/base.bbclass
diff options
authorEnrico Jorns <>2018-01-21 00:44:41 +0100
committerRichard Purdie <>2018-04-05 14:48:58 +0100
commit20901b9783220aa6e7adae4951c531919c20859b (patch)
tree449a92966ce2380705ef0718703b7705ed35294d /meta/classes/base.bbclass
parent87ec0fb470274d980f8553a85f778809c269c5d7 (diff)
base.bbclass: fix do_unpack[cleandirs] varflag handling
As introduced by a56fb90dc3805494eeaf04c60538425e8d52efc5 ('base.bbclass wipe ${S} before unpacking source') the base.bbclass uses a python anonymous function to set the 'do_unpack' varflag 'cleandirs' to either '${S}' or '${S}/patches' depending on equality of '${S}' and '${WORKDIR}'. Not that this only differs from the way almost all other recipes set or modify a tasks 'cleandirs' flag, it also has a significant impact on the kernel.bbclass (and possibly further ones) and causes incorrect behavior for rebuilds triggered by source modification, e.g. by a change of the defconfig file for a kernel build. The kernel.bbclass tries to extend do_unpack[cleandirs]: | do_unpack[cleandirs] += " ${S} ${STAGING_KERNEL_DIR} ${B} ${STAGING_KERNEL_BUILDDIR}" As python anonymous functions are evaluated at the very end of recipe parsing, the d.setVarFlag('do_unpack', 'cleandirs', '${S}') statement in base.bbclass will overwrite every modification to cleandirs that is done as shown for the kernel class above. As a result of this, a change to a kernels 'defconfig' will lead to an updated defconfig file in ${WORKDIR}, but as ${B} never gets cleaned and ${B}/.config still exists, it will not be copied to ${B}/.config and thus not find its way in the build kernel. This is a severe issue for the kernel development and build process! This patch changes setting of the cleandirs varflag in base.bbclass to a simple variable assignment as almost all other recipes do it. This now again allows overwriting or appending the varflag with common methods such as done in kernel.bbclass. This issue affects morty, pyro, rocko and master. Signed-off-by: Enrico Jorns <> Signed-off-by: Richard Purdie <>
Diffstat (limited to 'meta/classes/base.bbclass')
1 files changed, 2 insertions, 6 deletions
diff --git a/meta/classes/base.bbclass b/meta/classes/base.bbclass
index e0b76f0510..bb1f4b7533 100644
--- a/meta/classes/base.bbclass
+++ b/meta/classes/base.bbclass
@@ -152,12 +152,8 @@ python base_do_fetch() {
addtask unpack after do_fetch
do_unpack[dirs] = "${WORKDIR}"
-python () {
- if d.getVar('S') != d.getVar('WORKDIR'):
- d.setVarFlag('do_unpack', 'cleandirs', '${S}')
- else:
- d.setVarFlag('do_unpack', 'cleandirs', os.path.join('${S}', 'patches'))
+do_unpack[cleandirs] = "${@d.getVar('S') if d.getVar('S') != d.getVar('WORKDIR') else os.path.join('${S}', 'patches')}"
python base_do_unpack() {
src_uri = (d.getVar('SRC_URI') or "").split()
if len(src_uri) == 0: