sysmo-bts
/
generic-poky
9
0
Fork 0
Code Pull Requests Releases Activity

kernel-yocto: support allnoconfig base configuration 

When creating a minimal config or creating a hard baseline for
incremental changes, it is often desired to disable all kernel
options and then begin building and enabling only what is required.

To support this workflow, a new variable KCONFIG_MODE is introduced
to contain a hint to the kernel configuration about how the kernel
config should be produced. This variable is passed directly to lkc
when it is invoked during configuration, so the contents of the
variable must be a valid option for the kernel config build.

Additionally, when a defconfig is detected, allnoconfig is enabled
as the default operation, unless otherwise specified by KCONFIG_MODE.

(From OE-Core rev: 644f2e525b910b9ff8d9aaa33f11eba3fefa7c85)

Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Bruce Ashfield 2011-11-15 16:10:06 -05:00 committed by Richard Purdie
parent 77b0a2dd67
commit 44cf077ac1
1 changed files with 13 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
meta/classes/kernel-yocto.bbclass
View File

@ -44,7 +44,8 @@ do_patch() {
}
do_kernel_checkout() {
if [ -d ${WORKDIR}/git/.git/refs/remotes/origin ]; then
if [ -d $
{WORKDIR}/git/.git/refs/remotes/origin ]; then
echo "Fixing up git directory for ${LINUX_KERNEL_TYPE}/${KMACHINE}"
rm -rf ${S}
mkdir ${S}
@ -88,8 +89,18 @@ do_kernel_configme[dirs] = "${CCACHE_DIR} ${S} ${B}"
do_kernel_configme() {
echo "[INFO] doing kernel configme"
if [ -n ${KCONFIG_MODE} ]; then
configmeflags=${KCONFIG_MODE}
else
# If a defconfig was passed, use =n as the baseline, which is achieved
# via --allnoconfig
if [ -f ${WORKDIR}/defconfig ]; then
configmeflags="--allnoconfig"
fi
fi
cd ${S}
configme --reconfig --output ${B} ${KBRANCH} ${KMACHINE}
configme ${configmeflags} --reconfig --output ${B} ${KBRANCH} ${KMACHINE}
if [ $? -ne 0 ]; then
echo "ERROR. Could not configure ${KMACHINE}-${LINUX_KERNEL_TYPE}"
exit 1