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| author | Darren Hart <dvhart@linux.intel.com> | 2010-12-20 15:02:40 -0800 |
|---|---|---|
| committer | Richard Purdie <richard.purdie@linuxfoundation.org> | 2011-01-20 21:36:58 +0000 |
| commit | 0d7d5666509c013228242b87c1dfd15395af6701 (patch) | |
| tree | 64e733a571982bc274e7a96a562de306b2731656 /meta-rt | |
| parent | 4de544015b41cde2938d8bb00fec48f470e6d7fb (diff) | |
| download | openembedded-core-0d7d5666509c013228242b87c1dfd15395af6701.tar.gz openembedded-core-0d7d5666509c013228242b87c1dfd15395af6701.tar.bz2 openembedded-core-0d7d5666509c013228242b87c1dfd15395af6701.zip | |
meta-rt: Initial PREEMPT_RT layer and kernel recipes
The meta-rt layer provides a preempt_rt kernel recipe
using the linux-yocto-stable git tree. It overrides
the virtual/kernel provider and defines the compatible
machines and per-machine SRCREVs. The initial layer
supports only qemux86-64.
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
Cc: Tom Zanussi <tom.zanussi@intel.com>
Cc: Bruce Ashfield <bruce.ashfield@windriver.com>
Diffstat (limited to 'meta-rt')
| -rw-r--r-- | meta-rt/conf/layer.conf | 22 | ||||
| -rw-r--r-- | meta-rt/recipes-kernel/linux-yocto-rt_stablegit.bb | 39 |
2 files changed, 61 insertions, 0 deletions
diff --git a/meta-rt/conf/layer.conf b/meta-rt/conf/layer.conf new file mode 100644 index 0000000000..dbf4a326ba --- /dev/null +++ b/meta-rt/conf/layer.conf @@ -0,0 +1,22 @@ +# Default to first disk/first partition +RSP_ROOT ?= "sda1" + +# We have a conf and classes directory, add to BBPATH +BBPATH := "${BBPATH}:${LAYERDIR}" + +# We have an images and various recipe-* directories, add to BBFILES +BBFILES := "${BBFILES} ${LAYERDIR}/images/*.bb ${LAYERDIR}/images/*.bbappend ${LAYERDIR}/recipes-*/*.bb ${LAYERDIR}/recipes-*/*.bbappend" + +BBFILE_COLLECTIONS += "rt" +BBFILE_PATTERN_rt := "^${LAYERDIR}/" +BBFILE_PRIORITY_rt = "8" + +# This layer builds images using a PREEMPT_RT kernel. Override any machine +# specified kernel providers and leave it up to the kernel recipe to +# determine COMPATIBLE_MACHINE. +PREFERRED_PROVIDER_virtual/kernel = "linux-yocto-rt" + +# preempt_rt SRCREVs, one for meta, one per machine +SRCREV_meta_pn-linux-yocto-rt ?= "50ccd2b3213b6a1bacb3f898c035119802dac420" +SRCREV_machine_pn-linux-yocto-rt_qemux86-64 ?= "f49444f06875894389e640bcda6c3f6ceb1f0c3e" + diff --git a/meta-rt/recipes-kernel/linux-yocto-rt_stablegit.bb b/meta-rt/recipes-kernel/linux-yocto-rt_stablegit.bb new file mode 100644 index 0000000000..361b6806cd --- /dev/null +++ b/meta-rt/recipes-kernel/linux-yocto-rt_stablegit.bb @@ -0,0 +1,39 @@ +inherit kernel +require recipes-kernel/linux/linux-yocto.inc + +KMACHINE_qemux86-64 = "common_pc_64" + +LINUX_VERSION ?= "2.6.34" +LINUX_KERNEL_TYPE = "preempt_rt" +LINUX_VERSION_EXTENSION ?= "-yocto-${LINUX_KERNEL_TYPE_EXTENSION}" + +PR = "r0" +PV = "${LINUX_VERSION}+git${SRCPV}" +SRCREV_FORMAT = "meta_machine" + +COMPATIBLE_MACHINE = "(qemux86-64)" + +# this performs a fixup on the SRCREV for new/undefined BSPs +python __anonymous () { + import bb, re, string + + rev = bb.data.getVar("SRCREV_machine", d, 1) + if rev == "standard": + bb.data.setVar("SRCREV_machine", "${SRCREV_meta}", d) + + kerntype = string.replace(bb.data.expand("${LINUX_KERNEL_TYPE}", d), "_", "-") + bb.data.setVar("LINUX_KERNEL_TYPE_EXTENSION", kerntype, d) +} + +SRC_URI = "git://git.pokylinux.org/linux-2.6-windriver.git;protocol=git;fullclone=1;branch=${KBRANCH};name=machine \ + git://git.pokylinux.org/linux-2.6-windriver.git;protocol=git;noclone=1;branch=wrs_meta;name=meta" + +# Functionality flags +KERNEL_REVISION_CHECKING ?= "t" +KERNEL_FEATURES=features/netfilter + +# extra tasks +addtask kernel_link_vmlinux after do_compile before do_install +addtask validate_branches before do_patch after do_kernel_checkout + +require recipes-kernel/linux/linux-tools.inc |