On 15-03-09 04:36 AM, Chung-Yeh Wang wrote:
Hi List,
I am using Yocto 1.7.1 to build linux-mainline. I found defconfig will
not be used when using linux-yocto-custom.bb
<http://linux-yocto-custom.bb/> (maybe also happens on linux-yocto).
I think below is the reason,
1. kernel_do_configure is run after do_kernel_configme.The last line of
do_kernel_configme is echo
"CONFIG_LOCALVERSION="\"${LINUX_VERSION_EXTENSION}\" >> ${B}/.config
2. Following are the code to use defconfig,
The linux-yocto kernel_configme task takes the defconfig into account,
and uses it along with kernel configuration fragment processing.
The skipping of the blind defconfig copy is completely intentional.
Cheers,
Bruce
# Copy defconfig to .config if .config does not exist. This allows
# recipes to manage the .config themselves in do_configure_prepend().
if [ -f "${WORKDIR}/defconfig" ] && [ ! -f "${B}/.config" ]; then
cp "${WORKDIR}/defconfig" "${B}/.config"
The condition '[ ! -f "${B}/.config"]' will not be true, so
recepe-kernel/linux/linux-yocto-custom/defconfig will nerver be used.
To use defconfig is one of the method suggested in Kernel developer manual.
Thanks and Regards,
Chungyeh
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