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linux-yocto: streamline new BSP creation 

By setting BOOTSTRAP to the branch that should be used for a
currently undefined BSP a build can be completed and an
environment for streamlining the BSP created.

With the appropriate machine.conf, and a defconfig any MACHINE
can be built against and inherit the configuration of the
standard yocto kernel.

Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
This commit is contained in:
Bruce Ashfield 2011-01-14 00:33:26 -05:00 committed by Saul Wold
parent 37c4345197
commit 432e7619a7
1 changed files with 8 additions and 3 deletions
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11
meta/classes/kernel-yocto.bbclass
View File

@ -24,7 +24,7 @@ python __anonymous () {
bb.data.setVar("KMACHINE", "${MACHINE}", d)
# track the global configuration on a bootstrapped BSP
bb.data.setVar("SRCREV_machine", "${SRCREV_meta}", d)
bb.data.setVar("BOOTSTRAP", "t", d)
bb.data.setVar("BOOTSTRAP", bb.data.expand("${MACHINE}",d) + "-standard", d)
else:
# The branch for a build is:
# yocto/<kernel type>/${KMACHINE} or
@ -44,10 +44,10 @@ python __anonymous () {
bb.data.setVar('KMACHINE_' + bb.data.expand("${MACHINE}",d), kmachine, d)
if mach == "UNDEFINED":
bb.data.setVar("KBRANCH", "yocto/standard/base", d)
bb.data.setVar('KMACHINE_' + bb.data.expand("${MACHINE}",d), bb.data.expand("${MACHINE}",d), d)
bb.data.setVar("KBRANCH", "yocto/standard/base", d)
bb.data.setVar("SRCREV_machine", "standard", d)
bb.data.setVar("BOOTSTRAP", "t", d)
bb.data.setVar("BOOTSTRAP", "yocto/standard/" + bb.data.expand("${MACHINE}",d), d)
}
do_patch() {
@ -57,6 +57,11 @@ do_patch() {
fi
kbranch=${KBRANCH}
if [ -n "${BOOTSTRAP}" ]; then
# switch from a generic to a specific branch
kbranch=${BOOTSTRAP}
fi
# simply ensures that a branch of the right name has been created
createme ${ARCH} ${kbranch} ${defconfig}