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authorRichard Purdie <richard.purdie@linuxfoundation.org>2023-01-26 17:57:51 +0000
committerRichard Purdie <richard.purdie@linuxfoundation.org>2023-01-26 22:20:29 +0000
commit60681baa97daf4f3856453c34d6be08b6771a81b (patch)
treebe6556b7575a1b4c363255a5ea3128558ff6145f /meta
parentb5ab0d1795e68c29a2b69f99a6b46b920e879ec7 (diff)
downloadopenembedded-core-60681baa97daf4f3856453c34d6be08b6771a81b.tar.gz
kernel/linux-kernel-base: Fix kernel build artefact determinism issues
With the 6.1 kernel we've seen reproducibility/determinism issues where the kernel seems to rebuild headers referencing the hostname or local user. kernel-devsrc building after the kernel seemed to trigger it in some cases. Moving the definitions to the bbclass used by all the kernel recipe code including kernel-devsrc seems to be the best way to ensure this doesn't happen. Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Diffstat (limited to 'meta')
-rw-r--r--meta/classes-recipe/kernel.bbclass3
-rw-r--r--meta/classes-recipe/linux-kernel-base.bbclass4
2 files changed, 4 insertions, 3 deletions
diff --git a/meta/classes-recipe/kernel.bbclass b/meta/classes-recipe/kernel.bbclass
index bd3b6471c6..4fbe84c4e4 100644
--- a/meta/classes-recipe/kernel.bbclass
+++ b/meta/classes-recipe/kernel.bbclass
@@ -210,9 +210,6 @@ PACKAGES_DYNAMIC += "^${KERNEL_PACKAGE_NAME}-firmware-.*"
export OS = "${TARGET_OS}"
export CROSS_COMPILE = "${TARGET_PREFIX}"
-export KBUILD_BUILD_VERSION = "1"
-export KBUILD_BUILD_USER ?= "oe-user"
-export KBUILD_BUILD_HOST ?= "oe-host"
KERNEL_RELEASE ?= "${KERNEL_VERSION}"
diff --git a/meta/classes-recipe/linux-kernel-base.bbclass b/meta/classes-recipe/linux-kernel-base.bbclass
index cb2212c948..65cc48f304 100644
--- a/meta/classes-recipe/linux-kernel-base.bbclass
+++ b/meta/classes-recipe/linux-kernel-base.bbclass
@@ -43,5 +43,9 @@ def linux_module_packages(s, d):
suffix = ""
return " ".join(map(lambda s: "kernel-module-%s%s" % (s.lower().replace('_', '-').replace('@', '+'), suffix), s.split()))
+export KBUILD_BUILD_VERSION = "1"
+export KBUILD_BUILD_USER ?= "oe-user"
+export KBUILD_BUILD_HOST ?= "oe-host"
+
# that's all