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archiver.bbclass: do not cause kernel rebuilds

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Adding or removing archiver.bbclass from a build configuration causes
rebuilds of linux-yocto-based kernels because of the
do_kernel_configme->do_unpack_and_patch task dependency.

This particular dependency can be ignored for the do_kernel_configme
sstate signature calculcation. Idea for the fix from Richard Purdie.

Note that building the kernel and adding archiver.bbclass later to
archive sources leads to do_unpack_and_patch running after
do_kernel_configme (because that already ran in the first build),
which might be problematic. This is independent of the change here.

The use case in YOCTO #11441 is to removed archiver.bbclass between a
production build with archiving enabled and builds via oe-selftests
without archiving. That direction is fine.

Fixes: YOCTO #11441

(From OE-Core rev: fed0ed82928e6a7846fbad233ac657bd17bcefc7)

Signed-off-by: Patrick Ohly <patrick.ohly@intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Patrick Ohly
2017-05-05 12:25:25 +02:00
committed by Richard Purdie
parent 3208824ae6
commit 23ecae6d67
2 changed files with 9 additions and 2 deletions
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meta/classes/archiver.bbclass
+4 -1
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@@ -442,7 +442,10 @@ do_deploy_all_archives() {
}
python () {
# Add tasks in the correct order, specifically for linux-yocto to avoid race condition
# Add tasks in the correct order, specifically for linux-yocto to avoid race condition.
# sstatesig.py:sstate_rundepfilter has special support that excludes this dependency
# so that do_kernel_configme does not need to run again when do_unpack_and_patch
# gets added or removed (by adding or removing archiver.bbclass).
if bb.data.inherits_class('kernel-yocto', d):
bb.build.addtask('do_kernel_configme', 'do_configure', 'do_unpack_and_patch', d)
}