[This is currently an RFC as it depends on a separate patch to add
support for config fragments with .config file extensions in
yocto-kernel-tools:
https://lists.yoctoproject.org/g/linux-yocto/message/14431]
In Linux 6.8, the in-tree rv32_defconfig file for 32-bit RISC-V support
was dropped in favour of a Makefile target which combines the RISC-V
defconfig with a config fragment '32-bit.config'. So to build for 32-bit
RISC-V using the in-tree configuration from an upstream kernel, we need
to be able to enable this 32-bit config fragment.
We can support this via KERNEL_FEATURES if we add the in-tree arch
config directory (arch/${ARCH}/configs) to the search path.
While we're here, let's also add the generic config directory
(kernel/configs) to the search path so in-tree config fragments such as
'hardening.config' can be used.
Signed-off-by: Paul Barker <[email protected]>
---
meta/classes-recipe/kernel-yocto.bbclass | 3 +++
1 file changed, 3 insertions(+)
diff --git a/meta/classes-recipe/kernel-yocto.bbclass
b/meta/classes-recipe/kernel-yocto.bbclass
index 6d5c3b6327b6..66602d359404 100644
--- a/meta/classes-recipe/kernel-yocto.bbclass
+++ b/meta/classes-recipe/kernel-yocto.bbclass
@@ -248,6 +248,9 @@ do_kernel_metadata() {
fi
done
+ # allow in-tree config fragments to be used in KERNEL_FEATURES
+ includes="$includes -I${S}/arch/${ARCH}/configs -I${S}/kernel/configs"
+
# expand kernel features into their full path equivalents
bsp_definition=$(spp ${includes} --find -DKMACHINE=${KMACHINE}
-DKTYPE=${LINUX_KERNEL_TYPE})
if [ -z "$bsp_definition" ]; then
--
2.39.5
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