[PATCH 1/3] yocto-kernel: factor common routes, update to 2.6.37 and branch renaming


Bruce Ashfield <bruce.ashfield@...>
 

In order to extend and create more kernel recipes based on the
supported yocto kernel common routines need to be placed in
re-usable blocks.

To accomplish this meta/recipes-kernel/linux/linux-yocto_git.bb
is broken into three parts:

- meta/classes/kernel-yocto.bbclass: contains common routines
for checking out and configuring a yocto kernel git repository.
This should be inherited by recipes that need this functionality.

- meta/recipes-kernel/linux/linux-yocto.inc: Contains the machine
mappings, compatibility, build directives and common task
definitions for a yocto kernel based recipe. This inherits
kernel-yocto, and is the typical point of entry for other recipes.

- meta/recipes-kernel/linux/linuux-tools.inc: tasks and function definitions
for kernel recipes that want to build/export perf

It also updates the linux-yocto recipe to default to 2.6.37.

As part of the update to 2.6.37 the branch naming and conventions
have been modified to show inheritance, and be more generic.

For example:

master
meta
yocto/base
yocto/standard/arm_versatile_926ejs
yocto/standard/base
yocto/standard/beagleboard
yocto/standard/common_pc/atom-pc
yocto/standard/common_pc/base
yocto/standard/common_pc_64
yocto/standard/fsl-mpc8315e-rdb
yocto/standard/intel_atom_z530
yocto/standard/intel_core_qm57_pch
yocto/standard/mti_malta32_be
yocto/standard/preempt_rt/base
yocto/standard/preempt_rt/common_pc
yocto/standard/preempt_rt/common_pc_64
yocto/standard/preempt_rt/intel_atom_z530
yocto/standard/preempt_rt/intel_core_qm57_pch
yocto/standard/qemu_ppc32
yocto/standard/routerstationpro

In this structure:

master: tracks the mainline kernel
meta: meta information for the BSPs and kernel features
yocto/base: baseline kernel branch
yocto/standard/base: 'standard' kernel, contains features
and configs for all BSPs
yocto/standard/<machine>: represents a BSP with specific
features or configurations

The tools, tree and libc-headers have all been updated to
deal with this new structure. Also in addition to dealing with
the new structure, they continue to work with the existing
tree and will adapt at runtime to the differences.

The linux-yocto-stable_git.bb recipe continues to build the
2.6.34 based tree,and linux-yocto_git.bb builds 2.6.37. As
boards are enabled for the new kernel they will move from
-stable to the development kernel. As of now, only the
emulated targets have moved to 2.6.37-rcX

Signed-off-by: Bruce Ashfield <bruce.ashfield@...>
---
meta-emenlow/conf/machine/emenlow.conf | 3 +-
meta/classes/kernel-yocto.bbclass | 202 +++++++++++++++++
.../conf/distro/include/poky-default-revisions.inc | 2 +-
meta/conf/machine/atom-pc.conf | 3 +-
meta/conf/machine/beagleboard.conf | 3 +-
meta/conf/machine/include/qemu.inc | 1 +
meta/conf/machine/mpc8315e-rdb.conf | 3 +-
meta/conf/machine/routerstationpro.conf | 3 +-
.../linux-libc-headers-yocto_git.bb | 4 +-
meta/recipes-kernel/linux/linux-tools.inc | 19 ++
.../recipes-kernel/linux/linux-yocto-stable_git.bb | 41 ++++
meta/recipes-kernel/linux/linux-yocto.inc | 23 ++
meta/recipes-kernel/linux/linux-yocto_git.bb | 232 +++-----------------
13 files changed, 331 insertions(+), 208 deletions(-)
create mode 100644 meta/classes/kernel-yocto.bbclass
create mode 100644 meta/recipes-kernel/linux/linux-tools.inc
create mode 100644 meta/recipes-kernel/linux/linux-yocto-stable_git.bb
create mode 100644 meta/recipes-kernel/linux/linux-yocto.inc

diff --git a/meta-emenlow/conf/machine/emenlow.conf b/meta-emenlow/conf/machine/emenlow.conf
index 0f9ed8a..b8dea64 100644
--- a/meta-emenlow/conf/machine/emenlow.conf
+++ b/meta-emenlow/conf/machine/emenlow.conf
@@ -16,7 +16,8 @@ MACHINE_FEATURES = "kernel26 screen keyboard pci usbhost ext2 ext3 x86 \

KERNEL_IMAGETYPE = "bzImage"

-PREFERRED_PROVIDER_virtual/kernel = "linux-yocto"
+PREFERRED_PROVIDER_virtual/kernel = "linux-yocto-stable"
+#PREFERRED_PROVIDER_linux-libc-headers ?= "linux-libc-headers-yocto"
PREFERRED_PROVIDER_libdrm = "libdrm-poulsbo"
PREFERRED_PROVIDER_drm = "libdrm-poulsbo"
PREFERRED_PROVIDER_virtual/libx11 = "libx11-trim"
diff --git a/meta/classes/kernel-yocto.bbclass b/meta/classes/kernel-yocto.bbclass
new file mode 100644
index 0000000..87d06aa
--- /dev/null
+++ b/meta/classes/kernel-yocto.bbclass
@@ -0,0 +1,202 @@
+S = "${WORKDIR}/linux"
+
+# Determine which branch to fetch and build. Not all branches are in the
+# upstream repo (but will be locally created after the fetchers run) so
+# a fallback branch needs to be chosen.
+#
+# The default machine 'UNDEFINED'. If the machine is not set to a specific
+# branch in this recipe or in a recipe extension, then we fallback to a
+# branch that is always present 'standard'. This sets the KBRANCH variable
+# and is used in the SRC_URI. The machine is then set back to ${MACHINE},
+# since futher processing will use that to create local branches
+python __anonymous () {
+ import bb, re
+
+ version = bb.data.getVar("LINUX_VERSION", d, 1)
+ # 2.6.34 signifies the old-style tree, so we need some temporary
+ # conditional processing based on the kernel version.
+ if version == "2.6.34":
+ bb.data.setVar("KBRANCH", "${KMACHINE}-${LINUX_KERNEL_TYPE}", d)
+ bb.data.setVar("KMETA", "wrs_meta", d)
+ mach = bb.data.getVar("KMACHINE", d, 1)
+ if mach == "UNDEFINED":
+ bb.data.setVar("KBRANCH", "standard", d)
+ bb.data.setVar("KMACHINE", "${MACHINE}", d)
+ # track the global configuration on a bootstrapped BSP
+ bb.data.setVar("SRCREV_machine", "${SRCREV_meta}", d)
+ bb.data.setVar("BOOTSTRAP", "t", d)
+
+ else:
+ # The branch for a build is:
+ # yocto/<kernel type>/${KMACHINE} or
+ # yocto/<kernel type>/${KMACHINE}/base
+ bb.data.setVar("KBRANCH", bb.data.expand("yocto/${LINUX_KERNEL_TYPE}/${KMACHINE}",d), d)
+ bb.data.setVar("KMETA", "meta", d)
+
+ mach = bb.data.getVar("KMACHINE", d, 1)
+ # drop the "/base" if it was on the KMACHINE
+ kmachine = mach.replace('/base','')
+ # and then write KMACHINE back
+ bb.data.setVar('KMACHINE_' + bb.data.expand("${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("SRCREV_machine", "standard", d)
+ bb.data.setVar("BOOTSTRAP", "t", d)
+}
+
+do_patch() {
+ cd ${S}
+ if [ -f ${WORKDIR}/defconfig ]; then
+ defconfig=${WORKDIR}/defconfig
+ fi
+
+ if [ -n "${BOOTSTRAP}" ]; then
+ kbranch="yocto/${LINUX_KERNEL_TYPE}/${KMACHINE}"
+ else
+ kbranch=${KBRANCH}
+ fi
+
+ # simply ensures that a branch of the right name has been created
+ createme ${ARCH} ${kbranch} ${defconfig}
+ if [ $? -ne 0 ]; then
+ echo "ERROR. Could not create ${kbranch}"
+ exit 1
+ fi
+
+ # updates or generates the target description
+ if [ -n "${KERNEL_FEATURES}" ]; then
+ addon_features="--features ${KERNEL_FEATURES}"
+ fi
+ updateme ${addon_features} ${ARCH} ${WORKDIR}
+ if [ $? -ne 0 ]; then
+ echo "ERROR. Could not update ${kbranch}"
+ exit 1
+ fi
+
+ # executes and modifies the source tree as required
+ patchme ${kbranch}
+ if [ $? -ne 0 ]; then
+ echo "ERROR. Could not modify ${kbranch}"
+ exit 1
+ fi
+}
+
+do_kernel_checkout() {
+ if [ -d ${WORKDIR}/.git/refs/remotes/origin ]; then
+ echo "Fixing up git directory for ${LINUX_KERNEL_TYPE}/${KMACHINE}"
+ rm -rf ${S}
+ mkdir ${S}
+ mv ${WORKDIR}/.git ${S}
+
+ if [ -e ${S}/.git/packed-refs ]; then
+ cd ${S}
+ rm -f .git/refs/remotes/origin/HEAD
+IFS='
+';
+ for r in `git show-ref | grep remotes`; do
+ ref=`echo $r | cut -d' ' -f1`;
+ b=`echo $r | cut -d' ' -f2 | sed 's%refs/remotes/origin/%%'`;
+ dir=`dirname $b`
+ mkdir -p .git/refs/heads/$dir
+ echo $ref > .git/refs/heads/$b
+ done
+ cd ..
+ else
+ cp -r ${S}/.git/refs/remotes/origin/* ${S}/.git/refs/heads
+ rmdir ${S}/.git/refs/remotes/origin
+ fi
+ fi
+ cd ${S}
+
+ # checkout and clobber and unimportant files
+ git checkout -f ${KBRANCH}
+}
+do_kernel_checkout[dirs] = "${S}"
+
+addtask kernel_checkout before do_patch after do_unpack
+
+do_kernel_configme() {
+ echo "[INFO] doing kernel configme"
+
+ cd ${S}
+ configme --reconfig
+ if [ $? -ne 0 ]; then
+ echo "ERROR. Could not configure ${KMACHINE}-${LINUX_KERNEL_TYPE}"
+ exit 1
+ fi
+
+ echo "# Global settings from linux recipe" >> ${B}/.config
+ echo "CONFIG_LOCALVERSION="\"${LINUX_VERSION_EXTENSION}\" >> ${B}/.config
+}
+
+do_kernel_configcheck() {
+ echo "[INFO] validating kernel configuration"
+ cd ${B}/..
+ kconf_check ${B}/.config ${B} ${S} ${B} ${LINUX_VERSION} ${KMACHINE}-${LINUX_KERNEL_TYPE}
+}
+
+
+# Ensure that the branches (BSP and meta) are on the locatios specified by
+# their SRCREV values. If they are NOT on the right commits, the branches
+# are reset to the correct commit.
+do_validate_branches() {
+ cd ${S}
+ branch_head=`git show-ref -s --heads ${KBRANCH}`
+ meta_head=`git show-ref -s --heads ${KMETA}`
+ target_branch_head="${SRCREV_machine}"
+ target_meta_head="${SRCREV_meta}"
+
+ # nothing to do if bootstrapping
+ if [ -n "${BOOTSTRAP}" ]; then
+ return
+ fi
+
+ if [ -n "$target_branch_head" ] && [ "$branch_head" != "$target_branch_head" ]; then
+ if [ -n "${KERNEL_REVISION_CHECKING}" ]; then
+ git show ${target_branch_head} > /dev/null 2>&1
+ if [ $? -eq 0 ]; then
+ echo "Forcing branch ${KMACHINE}-${LINUX_KERNEL_TYPE} to ${target_branch_head}"
+ git branch -m ${KMACHINE}-${LINUX_KERNEL_TYPE} ${KMACHINE}-${LINUX_KERNEL_TYPE}-orig
+ git checkout -b ${KMACHINE}-${LINUX_KERNEL_TYPE} ${target_branch_head}
+ else
+ echo "ERROR ${target_branch_head} is not a valid commit ID."
+ echo "The kernel source tree may be out of sync"
+ exit 1
+ fi
+ fi
+ fi
+
+ if [ "$meta_head" != "$target_meta_head" ]; then
+ if [ -n "${KERNEL_REVISION_CHECKING}" ]; then
+ git show ${target_meta_head} > /dev/null 2>&1
+ if [ $? -eq 0 ]; then
+ echo "Forcing branch meta to ${target_meta_head}"
+ git branch -m meta meta-orig
+ git checkout -b meta ${target_meta_head}
+ else
+ echo "ERROR ${target_meta_head} is not a valid commit ID"
+ echo "The kernel source tree may be out of sync"
+ exit 1
+ fi
+ fi
+ fi
+
+ # restore the branch for builds
+ git checkout -f ${KBRANCH}
+}
+
+# Many scripts want to look in arch/$arch/boot for the bootable
+# image. This poses a problem for vmlinux based booting. This
+# task arranges to have vmlinux appear in the normalized directory
+# location.
+do_kernel_link_vmlinux() {
+ if [ ! -d "${B}/arch/${ARCH}/boot" ]; then
+ mkdir ${B}/arch/${ARCH}/boot
+ fi
+ cd ${B}/arch/${ARCH}/boot
+ ln -sf ../../../vmlinux
+}
+
+
diff --git a/meta/conf/distro/include/poky-default-revisions.inc b/meta/conf/distro/include/poky-default-revisions.inc
index 7f3468d..0ec7a3a 100644
--- a/meta/conf/distro/include/poky-default-revisions.inc
+++ b/meta/conf/distro/include/poky-default-revisions.inc
@@ -56,7 +56,7 @@ SRCREV_pn-gypsy ??= "147"
SRCREV_pn-inputproto ??= "7203036522ba9d4b224d282d6afc2d0b947711ee"
SRCREV_pn-inputproto-native ??= "7203036522ba9d4b224d282d6afc2d0b947711ee"
SRCREV_pn-inputproto-nativesdk ??= "7203036522ba9d4b224d282d6afc2d0b947711ee"
-SRCREV_pn-kern-tools-native ??= "9722d8decacd2b750f079b3fde7918810700f80e"
+SRCREV_pn-kern-tools-native ??= "c85dcdd2dc50d71476a11c2960bf14c2b144b3c7"
SRCREV_pn-libdrm ??= "3f3c5be6f908272199ccf53f108b1124bfe0a00e"
SRCREV_pn-libfakekey ??= "2031"
SRCREV_pn-libgdbus ??= "aeab6e3c0185b271ca343b439470491b99cc587f"
diff --git a/meta/conf/machine/atom-pc.conf b/meta/conf/machine/atom-pc.conf
index 7ca952a..8cf09b8 100644
--- a/meta/conf/machine/atom-pc.conf
+++ b/meta/conf/machine/atom-pc.conf
@@ -13,7 +13,8 @@ MACHINE_FEATURES = "kernel26 screen keyboard pci usbhost ext2 ext3 x86 wifi \

KERNEL_IMAGETYPE = "bzImage"

-PREFERRED_PROVIDER_virtual/kernel ?= "linux-yocto"
+PREFERRED_PROVIDER_virtual/kernel ?= "linux-yocto-stable"
+#PREFERRED_PROVIDER_linux-libc-headers ?= "linux-libc-headers-yocto"
PREFERRED_PROVIDER_virtual/libx11 ?= "libx11-trim"
PREFERRED_PROVIDER_virtual/libgl ?= "mesa-dri"
PREFERRED_PROVIDER_virtual/xserver ?= "xserver-xf86-dri-lite"
diff --git a/meta/conf/machine/beagleboard.conf b/meta/conf/machine/beagleboard.conf
index 657bd36..1b73250 100644
--- a/meta/conf/machine/beagleboard.conf
+++ b/meta/conf/machine/beagleboard.conf
@@ -22,7 +22,8 @@ EXTRA_IMAGECMD_jffs2 = "-lnp "
# Guesswork
SERIAL_CONSOLE = "115200 ttyS2"

-PREFERRED_PROVIDER_virtual/kernel = "linux-yocto"
+PREFERRED_PROVIDER_virtual/kernel = "linux-yocto-stable"
+#PREFERRED_PROVIDER_linux-libc-headers ?= "linux-libc-headers-yocto"

KERNEL_IMAGETYPE = "uImage"

diff --git a/meta/conf/machine/include/qemu.inc b/meta/conf/machine/include/qemu.inc
index 1b1b888..502e24f 100644
--- a/meta/conf/machine/include/qemu.inc
+++ b/meta/conf/machine/include/qemu.inc
@@ -16,5 +16,6 @@ RDEPENDS_kernel-base = ""

# Use a common kernel recipe for all QEMU machines
PREFERRED_PROVIDER_virtual/kernel = "linux-yocto"
+#PREFERRED_PROVIDER_linux-libc-headers ?= "linux-libc-headers-yocto"

EXTRA_IMAGEDEPENDS += "qemu-native qemu-helper-native"
diff --git a/meta/conf/machine/mpc8315e-rdb.conf b/meta/conf/machine/mpc8315e-rdb.conf
index 3341186..1b7982a 100644
--- a/meta/conf/machine/mpc8315e-rdb.conf
+++ b/meta/conf/machine/mpc8315e-rdb.conf
@@ -13,4 +13,5 @@ SERIAL_CONSOLE = "115200 ttyS0"

MACHINE_FEATURES = "kernel26 keyboard pci ext2 ext3 serial"

-PREFERRED_PROVIDER_virtual/kernel = "linux-yocto"
+PREFERRED_PROVIDER_virtual/kernel = "linux-yocto-stable"
+#PREFERRED_PROVIDER_linux-libc-headers ?= "linux-libc-headers-yocto"
diff --git a/meta/conf/machine/routerstationpro.conf b/meta/conf/machine/routerstationpro.conf
index 485ee3c..4f1bbbb 100644
--- a/meta/conf/machine/routerstationpro.conf
+++ b/meta/conf/machine/routerstationpro.conf
@@ -12,7 +12,8 @@ MACHINE_FEATURES = "kernel26 screen keyboard pci usbhost ext2 ext3 \
KERNEL_IMAGETYPE = "vmlinux"
KERNEL_ALT_IMAGETYPE = "vmlinux.bin"

-PREFERRED_PROVIDER_virtual/kernel = "linux-yocto"
+PREFERRED_PROVIDER_virtual/kernel = "linux-yocto-stable"
+#PREFERRED_PROVIDER_linux-libc-headers ?= "linux-libc-headers-yocto"

SERIAL_CONSOLE = "115200 ttyS0"

diff --git a/meta/recipes-kernel/linux-libc-headers/linux-libc-headers-yocto_git.bb b/meta/recipes-kernel/linux-libc-headers/linux-libc-headers-yocto_git.bb
index 6ae6d5f..3e3c1fa 100644
--- a/meta/recipes-kernel/linux-libc-headers/linux-libc-headers-yocto_git.bb
+++ b/meta/recipes-kernel/linux-libc-headers/linux-libc-headers-yocto_git.bb
@@ -4,7 +4,7 @@ INHIBIT_DEFAULT_DEPS = "1"
DEPENDS += "unifdef-native"
PROVIDES = "linux-libc-headers"
PV = "2.6.34+git-${SRCPV}"
-PR = "r0"
+PR = "r1"

SRC_URI = "git://git.pokylinux.org/linux-2.6-windriver.git;fullclone=1"

@@ -45,7 +45,7 @@ do_compile () {

do_install() {
set_arch
- oe_runmake headers_install_all INSTALL_HDR_PATH=${D}${exec_prefix} ARCH=$ARCH
+ oe_runmake headers_install INSTALL_HDR_PATH=${D}${exec_prefix} ARCH=$ARCH
}

BBCLASSEXTEND = "nativesdk"
diff --git a/meta/recipes-kernel/linux/linux-tools.inc b/meta/recipes-kernel/linux/linux-tools.inc
new file mode 100644
index 0000000..714207f
--- /dev/null
+++ b/meta/recipes-kernel/linux/linux-tools.inc
@@ -0,0 +1,19 @@
+# included by kernel recipes if they want to build/provide
+# perf functionality from their tree.
+
+do_compile_perf() {
+ oe_runmake -C ${S}/tools/perf CC="${KERNEL_CC}" LD="${KERNEL_LD}" prefix=${prefix}
+}
+
+do_install_perf() {
+ oe_runmake -C ${S}/tools/perf CC="${KERNEL_CC}" LD="${KERNEL_LD}" prefix=${prefix} DESTDIR=${D} install
+}
+
+
+# perf tasks
+addtask compile_perf after do_compile before do_install
+addtask install_perf after do_install before do_package do_deploy
+
+do_compile_perf[depends] = "virtual/libc:do_populate_sysroot"
+do_compile_perf[depends] =+ "elfutils:do_populate_sysroot"
+RDEPENDS_perf += "python perl elfutils"
diff --git a/meta/recipes-kernel/linux/linux-yocto-stable_git.bb b/meta/recipes-kernel/linux/linux-yocto-stable_git.bb
new file mode 100644
index 0000000..8ecd86f
--- /dev/null
+++ b/meta/recipes-kernel/linux/linux-yocto-stable_git.bb
@@ -0,0 +1,41 @@
+inherit kernel
+require linux-yocto.inc
+
+KMACHINE_qemux86 = "common_pc/base"
+KMACHINE_qemux86-64 = "common_pc_64"
+KMACHINE_qemuppc = "qemu_ppc32"
+KMACHINE_qemumips = "mti_malta32_be"
+KMACHINE_qemuarm = "arm_versatile_926ejs"
+KMACHINE_atom-pc = "atom-pc"
+KMACHINE_routerstationpro = "routerstationpro"
+KMACHINE_mpc8315e-rdb = "fsl-mpc8315e-rdb"
+KMACHINE_beagleboard = "beagleboard"
+
+LINUX_VERSION ?= "2.6.34"
+LINUX_VERSION_EXTENSION ?= "-yocto-${LINUX_KERNEL_TYPE}"
+PR = "r0"
+PV = "${LINUX_VERSION}+git${SRCPV}"
+SRCREV_FORMAT = "meta_machine"
+
+# this performs a fixup on the SRCREV for new/undefined BSPs
+python __anonymous () {
+ import bb, re
+
+ rev = bb.data.getVar("SRCREV_machine", d, 1)
+ if rev == "standard":
+ bb.data.setVar("SRCREV_machine", "${SRCREV_meta}", d)
+}
+
+SRC_URI = "git://git.pokylinux.org/linux-2.6-windriver.git;protocol=git;fullclone=1;branch=${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 linux-tools.inc
diff --git a/meta/recipes-kernel/linux/linux-yocto.inc b/meta/recipes-kernel/linux/linux-yocto.inc
new file mode 100644
index 0000000..095b337
--- /dev/null
+++ b/meta/recipes-kernel/linux/linux-yocto.inc
@@ -0,0 +1,23 @@
+DESCRIPTION = "Yocto Kernel"
+SECTION = "kernel"
+LICENSE = "GPL"
+
+# A KMACHINE is the mapping of a yocto $MACHINE to what is built
+# by the kernel. This is typically the branch that should be built,
+# and it can be specific to the machine or shared
+KMACHINE = "UNDEFINED"
+
+COMPATIBLE_MACHINE = "(qemuarm|qemux86|qemuppc|qemumips|qemux86-64|atom-pc|routerstationpro)"
+
+# Set this to 'preempt_rt' in the local.conf if you want a real time kernel
+LINUX_KERNEL_TYPE ?= standard
+
+do_patch[depends] = "kern-tools-native:do_populate_sysroot"
+
+addtask kernel_configme before do_configure after do_patch
+addtask kernel_configcheck after do_configure before do_compile
+
+# Pick up shared functions
+inherit kernel-yocto
+
+B = "${WORKDIR}/linux-${KMACHINE}-${LINUX_KERNEL_TYPE}-build"
diff --git a/meta/recipes-kernel/linux/linux-yocto_git.bb b/meta/recipes-kernel/linux/linux-yocto_git.bb
index ef005ae..db2e90b 100644
--- a/meta/recipes-kernel/linux/linux-yocto_git.bb
+++ b/meta/recipes-kernel/linux/linux-yocto_git.bb
@@ -1,21 +1,7 @@
-DESCRIPTION = "Yocto Kernel"
-SECTION = "kernel"
-LICENSE = "GPL"
-
-# Set this to 'preempt_rt' in the local.conf if you want a real time kernel
-LINUX_KERNEL_TYPE ?= standard
-SRCREV_FORMAT = "meta_machine"
-PV = "2.6.34+git${SRCPV}"
-
-# To use a staged, on-disk bare clone of a Wind River Kernel, use a
-# variant of the below
-# SRC_URI = "git://///path/to/kernel/default_kernel.git;fullclone=1"
-SRC_URI = "git://git.pokylinux.org/linux-2.6-windriver.git;protocol=git;fullclone=1;branch=${KBRANCH};name=machine \
- git://git.pokylinux.org/linux-2.6-windriver.git;protocol=git;noclone=1;branch=wrs_meta;name=meta"
+inherit kernel
+require linux-yocto.inc

-# map the poky machine to a 'kernel machine'
-KMACHINE = "UNDEFINED"
-KMACHINE_qemux86 = "common_pc"
+KMACHINE_qemux86 = "common_pc/base"
KMACHINE_qemux86-64 = "common_pc_64"
KMACHINE_qemuppc = "qemu_ppc32"
KMACHINE_qemumips = "mti_malta32_be"
@@ -25,199 +11,45 @@ KMACHINE_routerstationpro = "routerstationpro"
KMACHINE_mpc8315e-rdb = "fsl-mpc8315e-rdb"
KMACHINE_beagleboard = "beagleboard"

-# Determine which branch to fetch and build. Not all branches are in the
-# upstream repo (but will be locally created after the fetchers run) so
-# a fallback branch needs to be chosen.
-#
-# The default machine 'UNDEFINED'. If the machine is not set to a specific
-# branch in this recipe or in a recipe extension, then we fallback to a
-# branch that is always present 'standard'. This sets the KBRANCH variable
-# and is used in the SRC_URI. The machine is then set back to ${MACHINE},
-# since futher processing will use that to create local branches
+# Holding area for board REVs until the full switch to this
+# recipe is complete
+SRCREV_machine_pn-linux-yocto_qemuarm = "87e00a2d47ba80b4ad1f9170cb3f6cf81f21d739"
+SRCREV_machine_pn-linux-yocto_qemumips = "7231e473dd981a28e3cea9f677ed60583e731550"
+SRCREV_machine_pn-linux-yocto_qemuppc = "3ab3559637130b65d8889fa74286fdb57935726f"
+SRCREV_machine_pn-linux-yocto_qemux86 = "87aacc373557f8849dde8618fbe1f7f8f2af6038"
+SRCREV_machine_pn-linux-yocto_qemux86-64 = "87aacc373557f8849dde8618fbe1f7f8f2af6038"
+SRCREV_machine_pn-linux-yocto_emenlow = "87aacc373557f8849dde8618fbe1f7f8f2af6038"
+SRCREV_machine_pn-linux-yocto_atom-pc = "87aacc373557f8849dde8618fbe1f7f8f2af6038"
+SRCREV_machine_pn-linux-yocto_routerstationpro = "773d3a1c8eba563ffcdbf61057ef6e39cee0c88b"
+SRCREV_machine_pn-linux-yocto_mpc8315e-rdb = "5ff609967ffe87c49d534d7861a7e0b150517726"
+SRCREV_machine_pn-linux-yocto_beagleboard = "87aacc373557f8849dde8618fbe1f7f8f2af6038"
+SRCREV_meta_pn-linux-yocto = "ee0a10ab687b29c4d22d47e5b28bc8b3ebb7a8d9"
+
+LINUX_VERSION ?= "2.6.37"
+LINUX_VERSION_EXTENSION ?= "-yocto-${LINUX_KERNEL_TYPE}"
+PR = "r14"
+PV = "${LINUX_VERSION}+git${SRCPV}"
+SRCREV_FORMAT = "meta_machine"
+
+# this performs a fixup on the SRCREV for new/undefined BSPs
python __anonymous () {
import bb, re

- bb.data.setVar("KBRANCH", "${KMACHINE}-${LINUX_KERNEL_TYPE}", d)
- mach = bb.data.getVar("KMACHINE", d, 1)
- if mach == "UNDEFINED":
- bb.data.setVar("KBRANCH", "standard", d)
- bb.data.setVar("KMACHINE", "${MACHINE}", d)
- # track the global configuration on a bootstrapped BSP
+ rev = bb.data.getVar("SRCREV_machine", d, 1)
+ if rev == "standard":
bb.data.setVar("SRCREV_machine", "${SRCREV_meta}", d)
- bb.data.setVar("BOOTSTRAP", "t", d)
}

-COMPATIBLE_MACHINE = "(qemuarm|qemux86|qemuppc|qemumips|qemux86-64|atom-pc|routerstationpro|mpc8315e-rdb|beagleboard)"
-
-LINUX_VERSION = "v2.6.34"
-LINUX_VERSION_EXTENSION = "-wr-${LINUX_KERNEL_TYPE}"
-PR = "r13"
+SRC_URI = "git://git.pokylinux.org/linux-yocto-2.6.37;protocol=git;fullclone=1;branch=${KBRANCH};name=machine \
+ git://git.pokylinux.org/linux-yocto-2.6.37;protocol=git;noclone=1;branch=meta;name=meta"

-S = "${WORKDIR}/linux"
-B = "${WORKDIR}/linux-${KMACHINE}-${LINUX_KERNEL_TYPE}-build"

-# functionality flags
+# Functionality flags
KERNEL_REVISION_CHECKING ?= "t"
KERNEL_FEATURES=features/netfilter

-do_patch() {
- cd ${S}
- if [ -f ${WORKDIR}/defconfig ]; then
- defconfig=${WORKDIR}/defconfig
- fi
-
- # simply ensures that a branch of the right name has been created
- createme ${ARCH} ${KMACHINE}-${LINUX_KERNEL_TYPE} ${defconfig}
- if [ $? -ne 0 ]; then
- echo "ERROR. Could not create ${KMACHINE}-${LINUX_KERNEL_TYPE}"
- exit 1
- fi
-
- # updates or generates the target description
- if [ -n "${KERNEL_FEATURES}" ]; then
- addon_features="--features ${KERNEL_FEATURES}"
- fi
- updateme ${addon_features} ${ARCH} ${WORKDIR}
- if [ $? -ne 0 ]; then
- echo "ERROR. Could not update ${KMACHINE}-${LINUX_KERNEL_TYPE}"
- exit 1
- fi
-
- # executes and modifies the source tree as required
- patchme ${KMACHINE}-${LINUX_KERNEL_TYPE}
- if [ $? -ne 0 ]; then
- echo "ERROR. Could not modify ${KMACHINE}-${LINUX_KERNEL_TYPE}"
- exit 1
- fi
-}
-
-validate_branches() {
- branch_head=`git show-ref -s --heads ${KBRANCH}`
- meta_head=`git show-ref -s --heads wrs_meta`
- target_branch_head="${SRCREV_machine}"
- target_meta_head="${SRCREV_meta}"
-
- if [ -n "$target_branch_head" ] && [ "$branch_head" != "$target_branch_head" ]; then
- if [ -n "${KERNEL_REVISION_CHECKING}" ]; then
- git show ${target_branch_head} > /dev/null 2>&1
- if [ $? -eq 0 ]; then
- echo "Forcing branch ${KMACHINE}-${LINUX_KERNEL_TYPE} to ${target_branch_head}"
- git branch -m ${KMACHINE}-${LINUX_KERNEL_TYPE} ${KMACHINE}-${LINUX_KERNEL_TYPE}-orig
- git checkout -b ${KMACHINE}-${LINUX_KERNEL_TYPE} ${target_branch_head}
- else
- echo "ERROR ${target_branch_head} is not a valid commit ID."
- echo "The kernel source tree may be out of sync"
- exit 1
- fi
- fi
- fi
-
- if [ "$meta_head" != "$target_meta_head" ]; then
- if [ -n "${KERNEL_REVISION_CHECKING}" ]; then
- git show ${target_meta_head} > /dev/null 2>&1
- if [ $? -eq 0 ]; then
- echo "Forcing branch wrs_meta to ${target_meta_head}"
- git branch -m wrs_meta wrs_meta-orig
- git checkout -b wrs_meta ${target_meta_head}
- else
- echo "ERROR ${target_meta_head} is not a valid commit ID"
- echo "The kernel source tree may be out of sync"
- exit 1
- fi
- fi
- fi
-}
-
-do_kernel_checkout() {
- if [ -d ${WORKDIR}/.git/refs/remotes/origin ]; then
- echo "Fixing up git directory for ${KMACHINE}-${LINUX_KERNEL_TYPE}"
- rm -rf ${S}
- mkdir ${S}
- mv ${WORKDIR}/.git ${S}
-
- if [ -e ${S}/.git/packed-refs ]; then
- cd ${S}
- rm -f .git/refs/remotes/origin/HEAD
-IFS='
-';
-
- for r in `git show-ref | grep remotes`; do
- ref=`echo $r | cut -d' ' -f1`;
- b=`echo $r | cut -d'/' -f4`;
- echo $ref > .git/refs/heads/$b
- done
- cd ..
- else
- mv ${S}/.git/refs/remotes/origin/* ${S}/.git/refs/heads
- rmdir ${S}/.git/refs/remotes/origin
- fi
- fi
- cd ${S}
-
- # checkout and clobber and unimportant files
- git checkout -f ${KBRANCH}
-
- if [ -z "${BOOTSTRAP}" ]; then
- validate_branches
- fi
-
- # this second checkout is intentional, we want to leave ourselves
- # on the branch to be built, but validate_branches could have changed
- # our initial checkout. So we do it a second time to be sure
- git checkout -f ${KBRANCH}
-}
-do_kernel_checkout[dirs] = "${S}"
-
-addtask kernel_checkout before do_patch after do_unpack
-
-do_kernel_configme() {
- echo "Doing kernel configme"
-
- cd ${S}
- configme --reconfig
- if [ $? -ne 0 ]; then
- echo "ERROR. Could not configure ${KMACHINE}-${LINUX_KERNEL_TYPE}"
- exit 1
- fi
-
- echo "# CONFIG_WRNOTE is not set" >> ${B}/.config
- echo "# Global settings from linux recipe" >> ${B}/.config
- echo "CONFIG_LOCALVERSION="\"${LINUX_VERSION_EXTENSION}\" >> ${B}/.config
-}
-
-do_kernel_configcheck() {
- echo "[INFO] validating kernel configuration"
- cd ${B}/..
- kconf_check ${B}/.config ${B} ${S} ${B} ${LINUX_VERSION} ${KMACHINE}-${LINUX_KERNEL_TYPE}
-}
-
-do_kernel_link_vmlinux() {
- if [ ! -d "${B}/arch/${ARCH}/boot" ]; then
- mkdir ${B}/arch/${ARCH}/boot
- fi
- cd ${B}/arch/${ARCH}/boot
- ln -sf ../../../vmlinux
-}
-
-do_compile_perf() {
- oe_runmake -C ${S}/tools/perf CC="${KERNEL_CC}" LD="${KERNEL_LD}" prefix=${prefix}
-}
-
-do_install_perf() {
- oe_runmake -C ${S}/tools/perf CC="${KERNEL_CC}" LD="${KERNEL_LD}" prefix=${prefix} DESTDIR=${D} install
-}
-
-do_patch[depends] = "kern-tools-native:do_populate_sysroot"
-addtask kernel_configme before do_configure after do_patch
+# extra tasks
addtask kernel_link_vmlinux after do_compile before do_install
-addtask kernel_configcheck after do_configure before do_compile
-
-inherit kernel
-
-# perf tasks
-addtask compile_perf after do_compile before do_install
-addtask install_perf after do_install before do_package do_deploy
+addtask validate_branches before do_patch after do_kernel_checkout

-do_compile_perf[depends] = "virtual/libc:do_populate_sysroot"
-do_compile_perf[depends] =+ "elfutils:do_populate_sysroot"
-RDEPENDS_perf += "python perl elfutils"
+require linux-tools.inc
--
1.7.0.4


Bruce Ashfield <bruce.ashfield@...>
 

On 10-12-08 09:35 AM, Bruce Ashfield wrote:
In order to extend and create more kernel recipes based on the
supported yocto kernel common routines need to be placed in
re-usable blocks.
There may be a minor problem with this, stay tuned.

I just had a strange failure when I built the 2.6.37
kernel .. it blew up in the SRCREVs for the -stable
kernel. Looking into it.

Bruce


To accomplish this meta/recipes-kernel/linux/linux-yocto_git.bb
is broken into three parts:

- meta/classes/kernel-yocto.bbclass: contains common routines
for checking out and configuring a yocto kernel git repository.
This should be inherited by recipes that need this functionality.

- meta/recipes-kernel/linux/linux-yocto.inc: Contains the machine
mappings, compatibility, build directives and common task
definitions for a yocto kernel based recipe. This inherits
kernel-yocto, and is the typical point of entry for other recipes.

- meta/recipes-kernel/linux/linuux-tools.inc: tasks and function definitions
for kernel recipes that want to build/export perf

It also updates the linux-yocto recipe to default to 2.6.37.

As part of the update to 2.6.37 the branch naming and conventions
have been modified to show inheritance, and be more generic.

For example:

master
meta
yocto/base
yocto/standard/arm_versatile_926ejs
yocto/standard/base
yocto/standard/beagleboard
yocto/standard/common_pc/atom-pc
yocto/standard/common_pc/base
yocto/standard/common_pc_64
yocto/standard/fsl-mpc8315e-rdb
yocto/standard/intel_atom_z530
yocto/standard/intel_core_qm57_pch
yocto/standard/mti_malta32_be
yocto/standard/preempt_rt/base
yocto/standard/preempt_rt/common_pc
yocto/standard/preempt_rt/common_pc_64
yocto/standard/preempt_rt/intel_atom_z530
yocto/standard/preempt_rt/intel_core_qm57_pch
yocto/standard/qemu_ppc32
yocto/standard/routerstationpro

In this structure:

master: tracks the mainline kernel
meta: meta information for the BSPs and kernel features
yocto/base: baseline kernel branch
yocto/standard/base: 'standard' kernel, contains features
and configs for all BSPs
yocto/standard/<machine>: represents a BSP with specific
features or configurations

The tools, tree and libc-headers have all been updated to
deal with this new structure. Also in addition to dealing with
the new structure, they continue to work with the existing
tree and will adapt at runtime to the differences.

The linux-yocto-stable_git.bb recipe continues to build the
2.6.34 based tree,and linux-yocto_git.bb builds 2.6.37. As
boards are enabled for the new kernel they will move from
-stable to the development kernel. As of now, only the
emulated targets have moved to 2.6.37-rcX

Signed-off-by: Bruce Ashfield<bruce.ashfield@...>
---
meta-emenlow/conf/machine/emenlow.conf | 3 +-
meta/classes/kernel-yocto.bbclass | 202 +++++++++++++++++
.../conf/distro/include/poky-default-revisions.inc | 2 +-
meta/conf/machine/atom-pc.conf | 3 +-
meta/conf/machine/beagleboard.conf | 3 +-
meta/conf/machine/include/qemu.inc | 1 +
meta/conf/machine/mpc8315e-rdb.conf | 3 +-
meta/conf/machine/routerstationpro.conf | 3 +-
.../linux-libc-headers-yocto_git.bb | 4 +-
meta/recipes-kernel/linux/linux-tools.inc | 19 ++
.../recipes-kernel/linux/linux-yocto-stable_git.bb | 41 ++++
meta/recipes-kernel/linux/linux-yocto.inc | 23 ++
meta/recipes-kernel/linux/linux-yocto_git.bb | 232 +++-----------------
13 files changed, 331 insertions(+), 208 deletions(-)
create mode 100644 meta/classes/kernel-yocto.bbclass
create mode 100644 meta/recipes-kernel/linux/linux-tools.inc
create mode 100644 meta/recipes-kernel/linux/linux-yocto-stable_git.bb
create mode 100644 meta/recipes-kernel/linux/linux-yocto.inc

diff --git a/meta-emenlow/conf/machine/emenlow.conf b/meta-emenlow/conf/machine/emenlow.conf
index 0f9ed8a..b8dea64 100644
--- a/meta-emenlow/conf/machine/emenlow.conf
+++ b/meta-emenlow/conf/machine/emenlow.conf
@@ -16,7 +16,8 @@ MACHINE_FEATURES = "kernel26 screen keyboard pci usbhost ext2 ext3 x86 \

KERNEL_IMAGETYPE = "bzImage"

-PREFERRED_PROVIDER_virtual/kernel = "linux-yocto"
+PREFERRED_PROVIDER_virtual/kernel = "linux-yocto-stable"
+#PREFERRED_PROVIDER_linux-libc-headers ?= "linux-libc-headers-yocto"
PREFERRED_PROVIDER_libdrm = "libdrm-poulsbo"
PREFERRED_PROVIDER_drm = "libdrm-poulsbo"
PREFERRED_PROVIDER_virtual/libx11 = "libx11-trim"
diff --git a/meta/classes/kernel-yocto.bbclass b/meta/classes/kernel-yocto.bbclass
new file mode 100644
index 0000000..87d06aa
--- /dev/null
+++ b/meta/classes/kernel-yocto.bbclass
@@ -0,0 +1,202 @@
+S = "${WORKDIR}/linux"
+
+# Determine which branch to fetch and build. Not all branches are in the
+# upstream repo (but will be locally created after the fetchers run) so
+# a fallback branch needs to be chosen.
+#
+# The default machine 'UNDEFINED'. If the machine is not set to a specific
+# branch in this recipe or in a recipe extension, then we fallback to a
+# branch that is always present 'standard'. This sets the KBRANCH variable
+# and is used in the SRC_URI. The machine is then set back to ${MACHINE},
+# since futher processing will use that to create local branches
+python __anonymous () {
+ import bb, re
+
+ version = bb.data.getVar("LINUX_VERSION", d, 1)
+ # 2.6.34 signifies the old-style tree, so we need some temporary
+ # conditional processing based on the kernel version.
+ if version == "2.6.34":
+ bb.data.setVar("KBRANCH", "${KMACHINE}-${LINUX_KERNEL_TYPE}", d)
+ bb.data.setVar("KMETA", "wrs_meta", d)
+ mach = bb.data.getVar("KMACHINE", d, 1)
+ if mach == "UNDEFINED":
+ bb.data.setVar("KBRANCH", "standard", d)
+ bb.data.setVar("KMACHINE", "${MACHINE}", d)
+ # track the global configuration on a bootstrapped BSP
+ bb.data.setVar("SRCREV_machine", "${SRCREV_meta}", d)
+ bb.data.setVar("BOOTSTRAP", "t", d)
+
+ else:
+ # The branch for a build is:
+ # yocto/<kernel type>/${KMACHINE} or
+ # yocto/<kernel type>/${KMACHINE}/base
+ bb.data.setVar("KBRANCH", bb.data.expand("yocto/${LINUX_KERNEL_TYPE}/${KMACHINE}",d), d)
+ bb.data.setVar("KMETA", "meta", d)
+
+ mach = bb.data.getVar("KMACHINE", d, 1)
+ # drop the "/base" if it was on the KMACHINE
+ kmachine = mach.replace('/base','')
+ # and then write KMACHINE back
+ bb.data.setVar('KMACHINE_' + bb.data.expand("${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("SRCREV_machine", "standard", d)
+ bb.data.setVar("BOOTSTRAP", "t", d)
+}
+
+do_patch() {
+ cd ${S}
+ if [ -f ${WORKDIR}/defconfig ]; then
+ defconfig=${WORKDIR}/defconfig
+ fi
+
+ if [ -n "${BOOTSTRAP}" ]; then
+ kbranch="yocto/${LINUX_KERNEL_TYPE}/${KMACHINE}"
+ else
+ kbranch=${KBRANCH}
+ fi
+
+ # simply ensures that a branch of the right name has been created
+ createme ${ARCH} ${kbranch} ${defconfig}
+ if [ $? -ne 0 ]; then
+ echo "ERROR. Could not create ${kbranch}"
+ exit 1
+ fi
+
+ # updates or generates the target description
+ if [ -n "${KERNEL_FEATURES}" ]; then
+ addon_features="--features ${KERNEL_FEATURES}"
+ fi
+ updateme ${addon_features} ${ARCH} ${WORKDIR}
+ if [ $? -ne 0 ]; then
+ echo "ERROR. Could not update ${kbranch}"
+ exit 1
+ fi
+
+ # executes and modifies the source tree as required
+ patchme ${kbranch}
+ if [ $? -ne 0 ]; then
+ echo "ERROR. Could not modify ${kbranch}"
+ exit 1
+ fi
+}
+
+do_kernel_checkout() {
+ if [ -d ${WORKDIR}/.git/refs/remotes/origin ]; then
+ echo "Fixing up git directory for ${LINUX_KERNEL_TYPE}/${KMACHINE}"
+ rm -rf ${S}
+ mkdir ${S}
+ mv ${WORKDIR}/.git ${S}
+
+ if [ -e ${S}/.git/packed-refs ]; then
+ cd ${S}
+ rm -f .git/refs/remotes/origin/HEAD
+IFS='
+';
+ for r in `git show-ref | grep remotes`; do
+ ref=`echo $r | cut -d' ' -f1`;
+ b=`echo $r | cut -d' ' -f2 | sed 's%refs/remotes/origin/%%'`;
+ dir=`dirname $b`
+ mkdir -p .git/refs/heads/$dir
+ echo $ref> .git/refs/heads/$b
+ done
+ cd ..
+ else
+ cp -r ${S}/.git/refs/remotes/origin/* ${S}/.git/refs/heads
+ rmdir ${S}/.git/refs/remotes/origin
+ fi
+ fi
+ cd ${S}
+
+ # checkout and clobber and unimportant files
+ git checkout -f ${KBRANCH}
+}
+do_kernel_checkout[dirs] = "${S}"
+
+addtask kernel_checkout before do_patch after do_unpack
+
+do_kernel_configme() {
+ echo "[INFO] doing kernel configme"
+
+ cd ${S}
+ configme --reconfig
+ if [ $? -ne 0 ]; then
+ echo "ERROR. Could not configure ${KMACHINE}-${LINUX_KERNEL_TYPE}"
+ exit 1
+ fi
+
+ echo "# Global settings from linux recipe">> ${B}/.config
+ echo "CONFIG_LOCALVERSION="\"${LINUX_VERSION_EXTENSION}\">> ${B}/.config
+}
+
+do_kernel_configcheck() {
+ echo "[INFO] validating kernel configuration"
+ cd ${B}/..
+ kconf_check ${B}/.config ${B} ${S} ${B} ${LINUX_VERSION} ${KMACHINE}-${LINUX_KERNEL_TYPE}
+}
+
+
+# Ensure that the branches (BSP and meta) are on the locatios specified by
+# their SRCREV values. If they are NOT on the right commits, the branches
+# are reset to the correct commit.
+do_validate_branches() {
+ cd ${S}
+ branch_head=`git show-ref -s --heads ${KBRANCH}`
+ meta_head=`git show-ref -s --heads ${KMETA}`
+ target_branch_head="${SRCREV_machine}"
+ target_meta_head="${SRCREV_meta}"
+
+ # nothing to do if bootstrapping
+ if [ -n "${BOOTSTRAP}" ]; then
+ return
+ fi
+
+ if [ -n "$target_branch_head" ]&& [ "$branch_head" != "$target_branch_head" ]; then
+ if [ -n "${KERNEL_REVISION_CHECKING}" ]; then
+ git show ${target_branch_head}> /dev/null 2>&1
+ if [ $? -eq 0 ]; then
+ echo "Forcing branch ${KMACHINE}-${LINUX_KERNEL_TYPE} to ${target_branch_head}"
+ git branch -m ${KMACHINE}-${LINUX_KERNEL_TYPE} ${KMACHINE}-${LINUX_KERNEL_TYPE}-orig
+ git checkout -b ${KMACHINE}-${LINUX_KERNEL_TYPE} ${target_branch_head}
+ else
+ echo "ERROR ${target_branch_head} is not a valid commit ID."
+ echo "The kernel source tree may be out of sync"
+ exit 1
+ fi
+ fi
+ fi
+
+ if [ "$meta_head" != "$target_meta_head" ]; then
+ if [ -n "${KERNEL_REVISION_CHECKING}" ]; then
+ git show ${target_meta_head}> /dev/null 2>&1
+ if [ $? -eq 0 ]; then
+ echo "Forcing branch meta to ${target_meta_head}"
+ git branch -m meta meta-orig
+ git checkout -b meta ${target_meta_head}
+ else
+ echo "ERROR ${target_meta_head} is not a valid commit ID"
+ echo "The kernel source tree may be out of sync"
+ exit 1
+ fi
+ fi
+ fi
+
+ # restore the branch for builds
+ git checkout -f ${KBRANCH}
+}
+
+# Many scripts want to look in arch/$arch/boot for the bootable
+# image. This poses a problem for vmlinux based booting. This
+# task arranges to have vmlinux appear in the normalized directory
+# location.
+do_kernel_link_vmlinux() {
+ if [ ! -d "${B}/arch/${ARCH}/boot" ]; then
+ mkdir ${B}/arch/${ARCH}/boot
+ fi
+ cd ${B}/arch/${ARCH}/boot
+ ln -sf ../../../vmlinux
+}
+
+
diff --git a/meta/conf/distro/include/poky-default-revisions.inc b/meta/conf/distro/include/poky-default-revisions.inc
index 7f3468d..0ec7a3a 100644
--- a/meta/conf/distro/include/poky-default-revisions.inc
+++ b/meta/conf/distro/include/poky-default-revisions.inc
@@ -56,7 +56,7 @@ SRCREV_pn-gypsy ??= "147"
SRCREV_pn-inputproto ??= "7203036522ba9d4b224d282d6afc2d0b947711ee"
SRCREV_pn-inputproto-native ??= "7203036522ba9d4b224d282d6afc2d0b947711ee"
SRCREV_pn-inputproto-nativesdk ??= "7203036522ba9d4b224d282d6afc2d0b947711ee"
-SRCREV_pn-kern-tools-native ??= "9722d8decacd2b750f079b3fde7918810700f80e"
+SRCREV_pn-kern-tools-native ??= "c85dcdd2dc50d71476a11c2960bf14c2b144b3c7"
SRCREV_pn-libdrm ??= "3f3c5be6f908272199ccf53f108b1124bfe0a00e"
SRCREV_pn-libfakekey ??= "2031"
SRCREV_pn-libgdbus ??= "aeab6e3c0185b271ca343b439470491b99cc587f"
diff --git a/meta/conf/machine/atom-pc.conf b/meta/conf/machine/atom-pc.conf
index 7ca952a..8cf09b8 100644
--- a/meta/conf/machine/atom-pc.conf
+++ b/meta/conf/machine/atom-pc.conf
@@ -13,7 +13,8 @@ MACHINE_FEATURES = "kernel26 screen keyboard pci usbhost ext2 ext3 x86 wifi \

KERNEL_IMAGETYPE = "bzImage"

-PREFERRED_PROVIDER_virtual/kernel ?= "linux-yocto"
+PREFERRED_PROVIDER_virtual/kernel ?= "linux-yocto-stable"
+#PREFERRED_PROVIDER_linux-libc-headers ?= "linux-libc-headers-yocto"
PREFERRED_PROVIDER_virtual/libx11 ?= "libx11-trim"
PREFERRED_PROVIDER_virtual/libgl ?= "mesa-dri"
PREFERRED_PROVIDER_virtual/xserver ?= "xserver-xf86-dri-lite"
diff --git a/meta/conf/machine/beagleboard.conf b/meta/conf/machine/beagleboard.conf
index 657bd36..1b73250 100644
--- a/meta/conf/machine/beagleboard.conf
+++ b/meta/conf/machine/beagleboard.conf
@@ -22,7 +22,8 @@ EXTRA_IMAGECMD_jffs2 = "-lnp "
# Guesswork
SERIAL_CONSOLE = "115200 ttyS2"

-PREFERRED_PROVIDER_virtual/kernel = "linux-yocto"
+PREFERRED_PROVIDER_virtual/kernel = "linux-yocto-stable"
+#PREFERRED_PROVIDER_linux-libc-headers ?= "linux-libc-headers-yocto"

KERNEL_IMAGETYPE = "uImage"

diff --git a/meta/conf/machine/include/qemu.inc b/meta/conf/machine/include/qemu.inc
index 1b1b888..502e24f 100644
--- a/meta/conf/machine/include/qemu.inc
+++ b/meta/conf/machine/include/qemu.inc
@@ -16,5 +16,6 @@ RDEPENDS_kernel-base = ""

# Use a common kernel recipe for all QEMU machines
PREFERRED_PROVIDER_virtual/kernel = "linux-yocto"
+#PREFERRED_PROVIDER_linux-libc-headers ?= "linux-libc-headers-yocto"

EXTRA_IMAGEDEPENDS += "qemu-native qemu-helper-native"
diff --git a/meta/conf/machine/mpc8315e-rdb.conf b/meta/conf/machine/mpc8315e-rdb.conf
index 3341186..1b7982a 100644
--- a/meta/conf/machine/mpc8315e-rdb.conf
+++ b/meta/conf/machine/mpc8315e-rdb.conf
@@ -13,4 +13,5 @@ SERIAL_CONSOLE = "115200 ttyS0"

MACHINE_FEATURES = "kernel26 keyboard pci ext2 ext3 serial"

-PREFERRED_PROVIDER_virtual/kernel = "linux-yocto"
+PREFERRED_PROVIDER_virtual/kernel = "linux-yocto-stable"
+#PREFERRED_PROVIDER_linux-libc-headers ?= "linux-libc-headers-yocto"
diff --git a/meta/conf/machine/routerstationpro.conf b/meta/conf/machine/routerstationpro.conf
index 485ee3c..4f1bbbb 100644
--- a/meta/conf/machine/routerstationpro.conf
+++ b/meta/conf/machine/routerstationpro.conf
@@ -12,7 +12,8 @@ MACHINE_FEATURES = "kernel26 screen keyboard pci usbhost ext2 ext3 \
KERNEL_IMAGETYPE = "vmlinux"
KERNEL_ALT_IMAGETYPE = "vmlinux.bin"

-PREFERRED_PROVIDER_virtual/kernel = "linux-yocto"
+PREFERRED_PROVIDER_virtual/kernel = "linux-yocto-stable"
+#PREFERRED_PROVIDER_linux-libc-headers ?= "linux-libc-headers-yocto"

SERIAL_CONSOLE = "115200 ttyS0"

diff --git a/meta/recipes-kernel/linux-libc-headers/linux-libc-headers-yocto_git.bb b/meta/recipes-kernel/linux-libc-headers/linux-libc-headers-yocto_git.bb
index 6ae6d5f..3e3c1fa 100644
--- a/meta/recipes-kernel/linux-libc-headers/linux-libc-headers-yocto_git.bb
+++ b/meta/recipes-kernel/linux-libc-headers/linux-libc-headers-yocto_git.bb
@@ -4,7 +4,7 @@ INHIBIT_DEFAULT_DEPS = "1"
DEPENDS += "unifdef-native"
PROVIDES = "linux-libc-headers"
PV = "2.6.34+git-${SRCPV}"
-PR = "r0"
+PR = "r1"

SRC_URI = "git://git.pokylinux.org/linux-2.6-windriver.git;fullclone=1"

@@ -45,7 +45,7 @@ do_compile () {

do_install() {
set_arch
- oe_runmake headers_install_all INSTALL_HDR_PATH=${D}${exec_prefix} ARCH=$ARCH
+ oe_runmake headers_install INSTALL_HDR_PATH=${D}${exec_prefix} ARCH=$ARCH
}

BBCLASSEXTEND = "nativesdk"
diff --git a/meta/recipes-kernel/linux/linux-tools.inc b/meta/recipes-kernel/linux/linux-tools.inc
new file mode 100644
index 0000000..714207f
--- /dev/null
+++ b/meta/recipes-kernel/linux/linux-tools.inc
@@ -0,0 +1,19 @@
+# included by kernel recipes if they want to build/provide
+# perf functionality from their tree.
+
+do_compile_perf() {
+ oe_runmake -C ${S}/tools/perf CC="${KERNEL_CC}" LD="${KERNEL_LD}" prefix=${prefix}
+}
+
+do_install_perf() {
+ oe_runmake -C ${S}/tools/perf CC="${KERNEL_CC}" LD="${KERNEL_LD}" prefix=${prefix} DESTDIR=${D} install
+}
+
+
+# perf tasks
+addtask compile_perf after do_compile before do_install
+addtask install_perf after do_install before do_package do_deploy
+
+do_compile_perf[depends] = "virtual/libc:do_populate_sysroot"
+do_compile_perf[depends] =+ "elfutils:do_populate_sysroot"
+RDEPENDS_perf += "python perl elfutils"
diff --git a/meta/recipes-kernel/linux/linux-yocto-stable_git.bb b/meta/recipes-kernel/linux/linux-yocto-stable_git.bb
new file mode 100644
index 0000000..8ecd86f
--- /dev/null
+++ b/meta/recipes-kernel/linux/linux-yocto-stable_git.bb
@@ -0,0 +1,41 @@
+inherit kernel
+require linux-yocto.inc
+
+KMACHINE_qemux86 = "common_pc/base"
+KMACHINE_qemux86-64 = "common_pc_64"
+KMACHINE_qemuppc = "qemu_ppc32"
+KMACHINE_qemumips = "mti_malta32_be"
+KMACHINE_qemuarm = "arm_versatile_926ejs"
+KMACHINE_atom-pc = "atom-pc"
+KMACHINE_routerstationpro = "routerstationpro"
+KMACHINE_mpc8315e-rdb = "fsl-mpc8315e-rdb"
+KMACHINE_beagleboard = "beagleboard"
+
+LINUX_VERSION ?= "2.6.34"
+LINUX_VERSION_EXTENSION ?= "-yocto-${LINUX_KERNEL_TYPE}"
+PR = "r0"
+PV = "${LINUX_VERSION}+git${SRCPV}"
+SRCREV_FORMAT = "meta_machine"
+
+# this performs a fixup on the SRCREV for new/undefined BSPs
+python __anonymous () {
+ import bb, re
+
+ rev = bb.data.getVar("SRCREV_machine", d, 1)
+ if rev == "standard":
+ bb.data.setVar("SRCREV_machine", "${SRCREV_meta}", d)
+}
+
+SRC_URI = "git://git.pokylinux.org/linux-2.6-windriver.git;protocol=git;fullclone=1;branch=${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 linux-tools.inc
diff --git a/meta/recipes-kernel/linux/linux-yocto.inc b/meta/recipes-kernel/linux/linux-yocto.inc
new file mode 100644
index 0000000..095b337
--- /dev/null
+++ b/meta/recipes-kernel/linux/linux-yocto.inc
@@ -0,0 +1,23 @@
+DESCRIPTION = "Yocto Kernel"
+SECTION = "kernel"
+LICENSE = "GPL"
+
+# A KMACHINE is the mapping of a yocto $MACHINE to what is built
+# by the kernel. This is typically the branch that should be built,
+# and it can be specific to the machine or shared
+KMACHINE = "UNDEFINED"
+
+COMPATIBLE_MACHINE = "(qemuarm|qemux86|qemuppc|qemumips|qemux86-64|atom-pc|routerstationpro)"
+
+# Set this to 'preempt_rt' in the local.conf if you want a real time kernel
+LINUX_KERNEL_TYPE ?= standard
+
+do_patch[depends] = "kern-tools-native:do_populate_sysroot"
+
+addtask kernel_configme before do_configure after do_patch
+addtask kernel_configcheck after do_configure before do_compile
+
+# Pick up shared functions
+inherit kernel-yocto
+
+B = "${WORKDIR}/linux-${KMACHINE}-${LINUX_KERNEL_TYPE}-build"
diff --git a/meta/recipes-kernel/linux/linux-yocto_git.bb b/meta/recipes-kernel/linux/linux-yocto_git.bb
index ef005ae..db2e90b 100644
--- a/meta/recipes-kernel/linux/linux-yocto_git.bb
+++ b/meta/recipes-kernel/linux/linux-yocto_git.bb
@@ -1,21 +1,7 @@
-DESCRIPTION = "Yocto Kernel"
-SECTION = "kernel"
-LICENSE = "GPL"
-
-# Set this to 'preempt_rt' in the local.conf if you want a real time kernel
-LINUX_KERNEL_TYPE ?= standard
-SRCREV_FORMAT = "meta_machine"
-PV = "2.6.34+git${SRCPV}"
-
-# To use a staged, on-disk bare clone of a Wind River Kernel, use a
-# variant of the below
-# SRC_URI = "git://///path/to/kernel/default_kernel.git;fullclone=1"
-SRC_URI = "git://git.pokylinux.org/linux-2.6-windriver.git;protocol=git;fullclone=1;branch=${KBRANCH};name=machine \
- git://git.pokylinux.org/linux-2.6-windriver.git;protocol=git;noclone=1;branch=wrs_meta;name=meta"
+inherit kernel
+require linux-yocto.inc

-# map the poky machine to a 'kernel machine'
-KMACHINE = "UNDEFINED"
-KMACHINE_qemux86 = "common_pc"
+KMACHINE_qemux86 = "common_pc/base"
KMACHINE_qemux86-64 = "common_pc_64"
KMACHINE_qemuppc = "qemu_ppc32"
KMACHINE_qemumips = "mti_malta32_be"
@@ -25,199 +11,45 @@ KMACHINE_routerstationpro = "routerstationpro"
KMACHINE_mpc8315e-rdb = "fsl-mpc8315e-rdb"
KMACHINE_beagleboard = "beagleboard"

-# Determine which branch to fetch and build. Not all branches are in the
-# upstream repo (but will be locally created after the fetchers run) so
-# a fallback branch needs to be chosen.
-#
-# The default machine 'UNDEFINED'. If the machine is not set to a specific
-# branch in this recipe or in a recipe extension, then we fallback to a
-# branch that is always present 'standard'. This sets the KBRANCH variable
-# and is used in the SRC_URI. The machine is then set back to ${MACHINE},
-# since futher processing will use that to create local branches
+# Holding area for board REVs until the full switch to this
+# recipe is complete
+SRCREV_machine_pn-linux-yocto_qemuarm = "87e00a2d47ba80b4ad1f9170cb3f6cf81f21d739"
+SRCREV_machine_pn-linux-yocto_qemumips = "7231e473dd981a28e3cea9f677ed60583e731550"
+SRCREV_machine_pn-linux-yocto_qemuppc = "3ab3559637130b65d8889fa74286fdb57935726f"
+SRCREV_machine_pn-linux-yocto_qemux86 = "87aacc373557f8849dde8618fbe1f7f8f2af6038"
+SRCREV_machine_pn-linux-yocto_qemux86-64 = "87aacc373557f8849dde8618fbe1f7f8f2af6038"
+SRCREV_machine_pn-linux-yocto_emenlow = "87aacc373557f8849dde8618fbe1f7f8f2af6038"
+SRCREV_machine_pn-linux-yocto_atom-pc = "87aacc373557f8849dde8618fbe1f7f8f2af6038"
+SRCREV_machine_pn-linux-yocto_routerstationpro = "773d3a1c8eba563ffcdbf61057ef6e39cee0c88b"
+SRCREV_machine_pn-linux-yocto_mpc8315e-rdb = "5ff609967ffe87c49d534d7861a7e0b150517726"
+SRCREV_machine_pn-linux-yocto_beagleboard = "87aacc373557f8849dde8618fbe1f7f8f2af6038"
+SRCREV_meta_pn-linux-yocto = "ee0a10ab687b29c4d22d47e5b28bc8b3ebb7a8d9"
+
+LINUX_VERSION ?= "2.6.37"
+LINUX_VERSION_EXTENSION ?= "-yocto-${LINUX_KERNEL_TYPE}"
+PR = "r14"
+PV = "${LINUX_VERSION}+git${SRCPV}"
+SRCREV_FORMAT = "meta_machine"
+
+# this performs a fixup on the SRCREV for new/undefined BSPs
python __anonymous () {
import bb, re

- bb.data.setVar("KBRANCH", "${KMACHINE}-${LINUX_KERNEL_TYPE}", d)
- mach = bb.data.getVar("KMACHINE", d, 1)
- if mach == "UNDEFINED":
- bb.data.setVar("KBRANCH", "standard", d)
- bb.data.setVar("KMACHINE", "${MACHINE}", d)
- # track the global configuration on a bootstrapped BSP
+ rev = bb.data.getVar("SRCREV_machine", d, 1)
+ if rev == "standard":
bb.data.setVar("SRCREV_machine", "${SRCREV_meta}", d)
- bb.data.setVar("BOOTSTRAP", "t", d)
}

-COMPATIBLE_MACHINE = "(qemuarm|qemux86|qemuppc|qemumips|qemux86-64|atom-pc|routerstationpro|mpc8315e-rdb|beagleboard)"
-
-LINUX_VERSION = "v2.6.34"
-LINUX_VERSION_EXTENSION = "-wr-${LINUX_KERNEL_TYPE}"
-PR = "r13"
+SRC_URI = "git://git.pokylinux.org/linux-yocto-2.6.37;protocol=git;fullclone=1;branch=${KBRANCH};name=machine \
+ git://git.pokylinux.org/linux-yocto-2.6.37;protocol=git;noclone=1;branch=meta;name=meta"

-S = "${WORKDIR}/linux"
-B = "${WORKDIR}/linux-${KMACHINE}-${LINUX_KERNEL_TYPE}-build"

-# functionality flags
+# Functionality flags
KERNEL_REVISION_CHECKING ?= "t"
KERNEL_FEATURES=features/netfilter

-do_patch() {
- cd ${S}
- if [ -f ${WORKDIR}/defconfig ]; then
- defconfig=${WORKDIR}/defconfig
- fi
-
- # simply ensures that a branch of the right name has been created
- createme ${ARCH} ${KMACHINE}-${LINUX_KERNEL_TYPE} ${defconfig}
- if [ $? -ne 0 ]; then
- echo "ERROR. Could not create ${KMACHINE}-${LINUX_KERNEL_TYPE}"
- exit 1
- fi
-
- # updates or generates the target description
- if [ -n "${KERNEL_FEATURES}" ]; then
- addon_features="--features ${KERNEL_FEATURES}"
- fi
- updateme ${addon_features} ${ARCH} ${WORKDIR}
- if [ $? -ne 0 ]; then
- echo "ERROR. Could not update ${KMACHINE}-${LINUX_KERNEL_TYPE}"
- exit 1
- fi
-
- # executes and modifies the source tree as required
- patchme ${KMACHINE}-${LINUX_KERNEL_TYPE}
- if [ $? -ne 0 ]; then
- echo "ERROR. Could not modify ${KMACHINE}-${LINUX_KERNEL_TYPE}"
- exit 1
- fi
-}
-
-validate_branches() {
- branch_head=`git show-ref -s --heads ${KBRANCH}`
- meta_head=`git show-ref -s --heads wrs_meta`
- target_branch_head="${SRCREV_machine}"
- target_meta_head="${SRCREV_meta}"
-
- if [ -n "$target_branch_head" ]&& [ "$branch_head" != "$target_branch_head" ]; then
- if [ -n "${KERNEL_REVISION_CHECKING}" ]; then
- git show ${target_branch_head}> /dev/null 2>&1
- if [ $? -eq 0 ]; then
- echo "Forcing branch ${KMACHINE}-${LINUX_KERNEL_TYPE} to ${target_branch_head}"
- git branch -m ${KMACHINE}-${LINUX_KERNEL_TYPE} ${KMACHINE}-${LINUX_KERNEL_TYPE}-orig
- git checkout -b ${KMACHINE}-${LINUX_KERNEL_TYPE} ${target_branch_head}
- else
- echo "ERROR ${target_branch_head} is not a valid commit ID."
- echo "The kernel source tree may be out of sync"
- exit 1
- fi
- fi
- fi
-
- if [ "$meta_head" != "$target_meta_head" ]; then
- if [ -n "${KERNEL_REVISION_CHECKING}" ]; then
- git show ${target_meta_head}> /dev/null 2>&1
- if [ $? -eq 0 ]; then
- echo "Forcing branch wrs_meta to ${target_meta_head}"
- git branch -m wrs_meta wrs_meta-orig
- git checkout -b wrs_meta ${target_meta_head}
- else
- echo "ERROR ${target_meta_head} is not a valid commit ID"
- echo "The kernel source tree may be out of sync"
- exit 1
- fi
- fi
- fi
-}
-
-do_kernel_checkout() {
- if [ -d ${WORKDIR}/.git/refs/remotes/origin ]; then
- echo "Fixing up git directory for ${KMACHINE}-${LINUX_KERNEL_TYPE}"
- rm -rf ${S}
- mkdir ${S}
- mv ${WORKDIR}/.git ${S}
-
- if [ -e ${S}/.git/packed-refs ]; then
- cd ${S}
- rm -f .git/refs/remotes/origin/HEAD
-IFS='
-';
-
- for r in `git show-ref | grep remotes`; do
- ref=`echo $r | cut -d' ' -f1`;
- b=`echo $r | cut -d'/' -f4`;
- echo $ref> .git/refs/heads/$b
- done
- cd ..
- else
- mv ${S}/.git/refs/remotes/origin/* ${S}/.git/refs/heads
- rmdir ${S}/.git/refs/remotes/origin
- fi
- fi
- cd ${S}
-
- # checkout and clobber and unimportant files
- git checkout -f ${KBRANCH}
-
- if [ -z "${BOOTSTRAP}" ]; then
- validate_branches
- fi
-
- # this second checkout is intentional, we want to leave ourselves
- # on the branch to be built, but validate_branches could have changed
- # our initial checkout. So we do it a second time to be sure
- git checkout -f ${KBRANCH}
-}
-do_kernel_checkout[dirs] = "${S}"
-
-addtask kernel_checkout before do_patch after do_unpack
-
-do_kernel_configme() {
- echo "Doing kernel configme"
-
- cd ${S}
- configme --reconfig
- if [ $? -ne 0 ]; then
- echo "ERROR. Could not configure ${KMACHINE}-${LINUX_KERNEL_TYPE}"
- exit 1
- fi
-
- echo "# CONFIG_WRNOTE is not set">> ${B}/.config
- echo "# Global settings from linux recipe">> ${B}/.config
- echo "CONFIG_LOCALVERSION="\"${LINUX_VERSION_EXTENSION}\">> ${B}/.config
-}
-
-do_kernel_configcheck() {
- echo "[INFO] validating kernel configuration"
- cd ${B}/..
- kconf_check ${B}/.config ${B} ${S} ${B} ${LINUX_VERSION} ${KMACHINE}-${LINUX_KERNEL_TYPE}
-}
-
-do_kernel_link_vmlinux() {
- if [ ! -d "${B}/arch/${ARCH}/boot" ]; then
- mkdir ${B}/arch/${ARCH}/boot
- fi
- cd ${B}/arch/${ARCH}/boot
- ln -sf ../../../vmlinux
-}
-
-do_compile_perf() {
- oe_runmake -C ${S}/tools/perf CC="${KERNEL_CC}" LD="${KERNEL_LD}" prefix=${prefix}
-}
-
-do_install_perf() {
- oe_runmake -C ${S}/tools/perf CC="${KERNEL_CC}" LD="${KERNEL_LD}" prefix=${prefix} DESTDIR=${D} install
-}
-
-do_patch[depends] = "kern-tools-native:do_populate_sysroot"
-addtask kernel_configme before do_configure after do_patch
+# extra tasks
addtask kernel_link_vmlinux after do_compile before do_install
-addtask kernel_configcheck after do_configure before do_compile
-
-inherit kernel
-
-# perf tasks
-addtask compile_perf after do_compile before do_install
-addtask install_perf after do_install before do_package do_deploy
+addtask validate_branches before do_patch after do_kernel_checkout

-do_compile_perf[depends] = "virtual/libc:do_populate_sysroot"
-do_compile_perf[depends] =+ "elfutils:do_populate_sysroot"
-RDEPENDS_perf += "python perl elfutils"
+require linux-tools.inc


Bruce Ashfield <bruce.ashfield@...>
 

On 10-12-08 09:35 AM, Bruce Ashfield wrote:
In order to extend and create more kernel recipes based on the
supported yocto kernel common routines need to be placed in
re-usable blocks.

To accomplish this meta/recipes-kernel/linux/linux-yocto_git.bb
is broken into three parts:
<snip>

}

-COMPATIBLE_MACHINE = "(qemuarm|qemux86|qemuppc|qemumips|qemux86-64|atom-pc|routerstationpro|mpc8315e-rdb|beagleboard)"
-
-LINUX_VERSION = "v2.6.34"
-LINUX_VERSION_EXTENSION = "-wr-${LINUX_KERNEL_TYPE}"
-PR = "r13"
+SRC_URI = "git://git.pokylinux.org/linux-yocto-2.6.37;protocol=git;fullclone=1;branch=${KBRANCH};name=machine \

Richard,

This URI is only accessible via ssh, but the contents of the kernel
are definitely there. What do we need to change to make this
beastie public ? This is what is causing part of my SRCREV issues.

Cheers,

Bruce


+ git://git.pokylinux.org/linux-yocto-2.6.37;protocol=git;noclone=1;branch=meta;name=meta"

-S = "${WORKDIR}/linux"
-B = "${WORKDIR}/linux-${KMACHINE}-${LINUX_KERNEL_TYPE}-build"


Bruce Ashfield <bruce.ashfield@...>
 

On 10-12-08 03:20 PM, Bruce Ashfield wrote:
On 10-12-08 09:35 AM, Bruce Ashfield wrote:
In order to extend and create more kernel recipes based on the
supported yocto kernel common routines need to be placed in
re-usable blocks.
There may be a minor problem with this, stay tuned.

I just had a strange failure when I built the 2.6.37
kernel .. it blew up in the SRCREVs for the -stable
kernel. Looking into it.
I've resolved this, but don't fully understand it yet.
I'll send an updated patch series tomorrow, but this
shouldn't prevent review, since it is a one line change
to the anonymous python to fix the SRCREV parse errors.

Bruce


Bruce


To accomplish this meta/recipes-kernel/linux/linux-yocto_git.bb
is broken into three parts:

- meta/classes/kernel-yocto.bbclass: contains common routines
for checking out and configuring a yocto kernel git repository.
This should be inherited by recipes that need this functionality.

- meta/recipes-kernel/linux/linux-yocto.inc: Contains the machine
mappings, compatibility, build directives and common task
definitions for a yocto kernel based recipe. This inherits
kernel-yocto, and is the typical point of entry for other recipes.

- meta/recipes-kernel/linux/linuux-tools.inc: tasks and function
definitions
for kernel recipes that want to build/export perf

It also updates the linux-yocto recipe to default to 2.6.37.

As part of the update to 2.6.37 the branch naming and conventions
have been modified to show inheritance, and be more generic.

For example:

master
meta
yocto/base
yocto/standard/arm_versatile_926ejs
yocto/standard/base
yocto/standard/beagleboard
yocto/standard/common_pc/atom-pc
yocto/standard/common_pc/base
yocto/standard/common_pc_64
yocto/standard/fsl-mpc8315e-rdb
yocto/standard/intel_atom_z530
yocto/standard/intel_core_qm57_pch
yocto/standard/mti_malta32_be
yocto/standard/preempt_rt/base
yocto/standard/preempt_rt/common_pc
yocto/standard/preempt_rt/common_pc_64
yocto/standard/preempt_rt/intel_atom_z530
yocto/standard/preempt_rt/intel_core_qm57_pch
yocto/standard/qemu_ppc32
yocto/standard/routerstationpro

In this structure:

master: tracks the mainline kernel
meta: meta information for the BSPs and kernel features
yocto/base: baseline kernel branch
yocto/standard/base: 'standard' kernel, contains features
and configs for all BSPs
yocto/standard/<machine>: represents a BSP with specific
features or configurations

The tools, tree and libc-headers have all been updated to
deal with this new structure. Also in addition to dealing with
the new structure, they continue to work with the existing
tree and will adapt at runtime to the differences.

The linux-yocto-stable_git.bb recipe continues to build the
2.6.34 based tree,and linux-yocto_git.bb builds 2.6.37. As
boards are enabled for the new kernel they will move from
-stable to the development kernel. As of now, only the
emulated targets have moved to 2.6.37-rcX

Signed-off-by: Bruce Ashfield<bruce.ashfield@...>
---
meta-emenlow/conf/machine/emenlow.conf | 3 +-
meta/classes/kernel-yocto.bbclass | 202 +++++++++++++++++
.../conf/distro/include/poky-default-revisions.inc | 2 +-
meta/conf/machine/atom-pc.conf | 3 +-
meta/conf/machine/beagleboard.conf | 3 +-
meta/conf/machine/include/qemu.inc | 1 +
meta/conf/machine/mpc8315e-rdb.conf | 3 +-
meta/conf/machine/routerstationpro.conf | 3 +-
.../linux-libc-headers-yocto_git.bb | 4 +-
meta/recipes-kernel/linux/linux-tools.inc | 19 ++
.../recipes-kernel/linux/linux-yocto-stable_git.bb | 41 ++++
meta/recipes-kernel/linux/linux-yocto.inc | 23 ++
meta/recipes-kernel/linux/linux-yocto_git.bb | 232 +++-----------------
13 files changed, 331 insertions(+), 208 deletions(-)
create mode 100644 meta/classes/kernel-yocto.bbclass
create mode 100644 meta/recipes-kernel/linux/linux-tools.inc
create mode 100644 meta/recipes-kernel/linux/linux-yocto-stable_git.bb
create mode 100644 meta/recipes-kernel/linux/linux-yocto.inc

diff --git a/meta-emenlow/conf/machine/emenlow.conf
b/meta-emenlow/conf/machine/emenlow.conf
index 0f9ed8a..b8dea64 100644
--- a/meta-emenlow/conf/machine/emenlow.conf
+++ b/meta-emenlow/conf/machine/emenlow.conf
@@ -16,7 +16,8 @@ MACHINE_FEATURES = "kernel26 screen keyboard pci
usbhost ext2 ext3 x86 \

KERNEL_IMAGETYPE = "bzImage"

-PREFERRED_PROVIDER_virtual/kernel = "linux-yocto"
+PREFERRED_PROVIDER_virtual/kernel = "linux-yocto-stable"
+#PREFERRED_PROVIDER_linux-libc-headers ?= "linux-libc-headers-yocto"
PREFERRED_PROVIDER_libdrm = "libdrm-poulsbo"
PREFERRED_PROVIDER_drm = "libdrm-poulsbo"
PREFERRED_PROVIDER_virtual/libx11 = "libx11-trim"
diff --git a/meta/classes/kernel-yocto.bbclass
b/meta/classes/kernel-yocto.bbclass
new file mode 100644
index 0000000..87d06aa
--- /dev/null
+++ b/meta/classes/kernel-yocto.bbclass
@@ -0,0 +1,202 @@
+S = "${WORKDIR}/linux"
+
+# Determine which branch to fetch and build. Not all branches are in the
+# upstream repo (but will be locally created after the fetchers run) so
+# a fallback branch needs to be chosen.
+#
+# The default machine 'UNDEFINED'. If the machine is not set to a
specific
+# branch in this recipe or in a recipe extension, then we fallback to a
+# branch that is always present 'standard'. This sets the KBRANCH
variable
+# and is used in the SRC_URI. The machine is then set back to
${MACHINE},
+# since futher processing will use that to create local branches
+python __anonymous () {
+ import bb, re
+
+ version = bb.data.getVar("LINUX_VERSION", d, 1)
+ # 2.6.34 signifies the old-style tree, so we need some temporary
+ # conditional processing based on the kernel version.
+ if version == "2.6.34":
+ bb.data.setVar("KBRANCH", "${KMACHINE}-${LINUX_KERNEL_TYPE}", d)
+ bb.data.setVar("KMETA", "wrs_meta", d)
+ mach = bb.data.getVar("KMACHINE", d, 1)
+ if mach == "UNDEFINED":
+ bb.data.setVar("KBRANCH", "standard", d)
+ bb.data.setVar("KMACHINE", "${MACHINE}", d)
+ # track the global configuration on a bootstrapped BSP
+ bb.data.setVar("SRCREV_machine", "${SRCREV_meta}", d)
+ bb.data.setVar("BOOTSTRAP", "t", d)
+
+ else:
+ # The branch for a build is:
+ # yocto/<kernel type>/${KMACHINE} or
+ # yocto/<kernel type>/${KMACHINE}/base
+ bb.data.setVar("KBRANCH",
bb.data.expand("yocto/${LINUX_KERNEL_TYPE}/${KMACHINE}",d), d)
+ bb.data.setVar("KMETA", "meta", d)
+
+ mach = bb.data.getVar("KMACHINE", d, 1)
+ # drop the "/base" if it was on the KMACHINE
+ kmachine = mach.replace('/base','')
+ # and then write KMACHINE back
+ bb.data.setVar('KMACHINE_' + bb.data.expand("${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("SRCREV_machine", "standard", d)
+ bb.data.setVar("BOOTSTRAP", "t", d)
+}
+
+do_patch() {
+ cd ${S}
+ if [ -f ${WORKDIR}/defconfig ]; then
+ defconfig=${WORKDIR}/defconfig
+ fi
+
+ if [ -n "${BOOTSTRAP}" ]; then
+ kbranch="yocto/${LINUX_KERNEL_TYPE}/${KMACHINE}"
+ else
+ kbranch=${KBRANCH}
+ fi
+
+ # simply ensures that a branch of the right name has been created
+ createme ${ARCH} ${kbranch} ${defconfig}
+ if [ $? -ne 0 ]; then
+ echo "ERROR. Could not create ${kbranch}"
+ exit 1
+ fi
+
+ # updates or generates the target description
+ if [ -n "${KERNEL_FEATURES}" ]; then
+ addon_features="--features ${KERNEL_FEATURES}"
+ fi
+ updateme ${addon_features} ${ARCH} ${WORKDIR}
+ if [ $? -ne 0 ]; then
+ echo "ERROR. Could not update ${kbranch}"
+ exit 1
+ fi
+
+ # executes and modifies the source tree as required
+ patchme ${kbranch}
+ if [ $? -ne 0 ]; then
+ echo "ERROR. Could not modify ${kbranch}"
+ exit 1
+ fi
+}
+
+do_kernel_checkout() {
+ if [ -d ${WORKDIR}/.git/refs/remotes/origin ]; then
+ echo "Fixing up git directory for ${LINUX_KERNEL_TYPE}/${KMACHINE}"
+ rm -rf ${S}
+ mkdir ${S}
+ mv ${WORKDIR}/.git ${S}
+
+ if [ -e ${S}/.git/packed-refs ]; then
+ cd ${S}
+ rm -f .git/refs/remotes/origin/HEAD
+IFS='
+';
+ for r in `git show-ref | grep remotes`; do
+ ref=`echo $r | cut -d' ' -f1`;
+ b=`echo $r | cut -d' ' -f2 | sed 's%refs/remotes/origin/%%'`;
+ dir=`dirname $b`
+ mkdir -p .git/refs/heads/$dir
+ echo $ref> .git/refs/heads/$b
+ done
+ cd ..
+ else
+ cp -r ${S}/.git/refs/remotes/origin/* ${S}/.git/refs/heads
+ rmdir ${S}/.git/refs/remotes/origin
+ fi
+ fi
+ cd ${S}
+
+ # checkout and clobber and unimportant files
+ git checkout -f ${KBRANCH}
+}
+do_kernel_checkout[dirs] = "${S}"
+
+addtask kernel_checkout before do_patch after do_unpack
+
+do_kernel_configme() {
+ echo "[INFO] doing kernel configme"
+
+ cd ${S}
+ configme --reconfig
+ if [ $? -ne 0 ]; then
+ echo "ERROR. Could not configure ${KMACHINE}-${LINUX_KERNEL_TYPE}"
+ exit 1
+ fi
+
+ echo "# Global settings from linux recipe">> ${B}/.config
+ echo "CONFIG_LOCALVERSION="\"${LINUX_VERSION_EXTENSION}\">>
${B}/.config
+}
+
+do_kernel_configcheck() {
+ echo "[INFO] validating kernel configuration"
+ cd ${B}/..
+ kconf_check ${B}/.config ${B} ${S} ${B} ${LINUX_VERSION}
${KMACHINE}-${LINUX_KERNEL_TYPE}
+}
+
+
+# Ensure that the branches (BSP and meta) are on the locatios
specified by
+# their SRCREV values. If they are NOT on the right commits, the
branches
+# are reset to the correct commit.
+do_validate_branches() {
+ cd ${S}
+ branch_head=`git show-ref -s --heads ${KBRANCH}`
+ meta_head=`git show-ref -s --heads ${KMETA}`
+ target_branch_head="${SRCREV_machine}"
+ target_meta_head="${SRCREV_meta}"
+
+ # nothing to do if bootstrapping
+ if [ -n "${BOOTSTRAP}" ]; then
+ return
+ fi
+
+ if [ -n "$target_branch_head" ]&& [ "$branch_head" !=
"$target_branch_head" ]; then
+ if [ -n "${KERNEL_REVISION_CHECKING}" ]; then
+ git show ${target_branch_head}> /dev/null 2>&1
+ if [ $? -eq 0 ]; then
+ echo "Forcing branch ${KMACHINE}-${LINUX_KERNEL_TYPE} to
${target_branch_head}"
+ git branch -m ${KMACHINE}-${LINUX_KERNEL_TYPE}
${KMACHINE}-${LINUX_KERNEL_TYPE}-orig
+ git checkout -b ${KMACHINE}-${LINUX_KERNEL_TYPE} ${target_branch_head}
+ else
+ echo "ERROR ${target_branch_head} is not a valid commit ID."
+ echo "The kernel source tree may be out of sync"
+ exit 1
+ fi
+ fi
+ fi
+
+ if [ "$meta_head" != "$target_meta_head" ]; then
+ if [ -n "${KERNEL_REVISION_CHECKING}" ]; then
+ git show ${target_meta_head}> /dev/null 2>&1
+ if [ $? -eq 0 ]; then
+ echo "Forcing branch meta to ${target_meta_head}"
+ git branch -m meta meta-orig
+ git checkout -b meta ${target_meta_head}
+ else
+ echo "ERROR ${target_meta_head} is not a valid commit ID"
+ echo "The kernel source tree may be out of sync"
+ exit 1
+ fi
+ fi
+ fi
+
+ # restore the branch for builds
+ git checkout -f ${KBRANCH}
+}
+
+# Many scripts want to look in arch/$arch/boot for the bootable
+# image. This poses a problem for vmlinux based booting. This
+# task arranges to have vmlinux appear in the normalized directory
+# location.
+do_kernel_link_vmlinux() {
+ if [ ! -d "${B}/arch/${ARCH}/boot" ]; then
+ mkdir ${B}/arch/${ARCH}/boot
+ fi
+ cd ${B}/arch/${ARCH}/boot
+ ln -sf ../../../vmlinux
+}
+
+
diff --git a/meta/conf/distro/include/poky-default-revisions.inc
b/meta/conf/distro/include/poky-default-revisions.inc
index 7f3468d..0ec7a3a 100644
--- a/meta/conf/distro/include/poky-default-revisions.inc
+++ b/meta/conf/distro/include/poky-default-revisions.inc
@@ -56,7 +56,7 @@ SRCREV_pn-gypsy ??= "147"
SRCREV_pn-inputproto ??= "7203036522ba9d4b224d282d6afc2d0b947711ee"
SRCREV_pn-inputproto-native ??=
"7203036522ba9d4b224d282d6afc2d0b947711ee"
SRCREV_pn-inputproto-nativesdk ??=
"7203036522ba9d4b224d282d6afc2d0b947711ee"
-SRCREV_pn-kern-tools-native ??=
"9722d8decacd2b750f079b3fde7918810700f80e"
+SRCREV_pn-kern-tools-native ??=
"c85dcdd2dc50d71476a11c2960bf14c2b144b3c7"
SRCREV_pn-libdrm ??= "3f3c5be6f908272199ccf53f108b1124bfe0a00e"
SRCREV_pn-libfakekey ??= "2031"
SRCREV_pn-libgdbus ??= "aeab6e3c0185b271ca343b439470491b99cc587f"
diff --git a/meta/conf/machine/atom-pc.conf
b/meta/conf/machine/atom-pc.conf
index 7ca952a..8cf09b8 100644
--- a/meta/conf/machine/atom-pc.conf
+++ b/meta/conf/machine/atom-pc.conf
@@ -13,7 +13,8 @@ MACHINE_FEATURES = "kernel26 screen keyboard pci
usbhost ext2 ext3 x86 wifi \

KERNEL_IMAGETYPE = "bzImage"

-PREFERRED_PROVIDER_virtual/kernel ?= "linux-yocto"
+PREFERRED_PROVIDER_virtual/kernel ?= "linux-yocto-stable"
+#PREFERRED_PROVIDER_linux-libc-headers ?= "linux-libc-headers-yocto"
PREFERRED_PROVIDER_virtual/libx11 ?= "libx11-trim"
PREFERRED_PROVIDER_virtual/libgl ?= "mesa-dri"
PREFERRED_PROVIDER_virtual/xserver ?= "xserver-xf86-dri-lite"
diff --git a/meta/conf/machine/beagleboard.conf
b/meta/conf/machine/beagleboard.conf
index 657bd36..1b73250 100644
--- a/meta/conf/machine/beagleboard.conf
+++ b/meta/conf/machine/beagleboard.conf
@@ -22,7 +22,8 @@ EXTRA_IMAGECMD_jffs2 = "-lnp "
# Guesswork
SERIAL_CONSOLE = "115200 ttyS2"

-PREFERRED_PROVIDER_virtual/kernel = "linux-yocto"
+PREFERRED_PROVIDER_virtual/kernel = "linux-yocto-stable"
+#PREFERRED_PROVIDER_linux-libc-headers ?= "linux-libc-headers-yocto"

KERNEL_IMAGETYPE = "uImage"

diff --git a/meta/conf/machine/include/qemu.inc
b/meta/conf/machine/include/qemu.inc
index 1b1b888..502e24f 100644
--- a/meta/conf/machine/include/qemu.inc
+++ b/meta/conf/machine/include/qemu.inc
@@ -16,5 +16,6 @@ RDEPENDS_kernel-base = ""

# Use a common kernel recipe for all QEMU machines
PREFERRED_PROVIDER_virtual/kernel = "linux-yocto"
+#PREFERRED_PROVIDER_linux-libc-headers ?= "linux-libc-headers-yocto"

EXTRA_IMAGEDEPENDS += "qemu-native qemu-helper-native"
diff --git a/meta/conf/machine/mpc8315e-rdb.conf
b/meta/conf/machine/mpc8315e-rdb.conf
index 3341186..1b7982a 100644
--- a/meta/conf/machine/mpc8315e-rdb.conf
+++ b/meta/conf/machine/mpc8315e-rdb.conf
@@ -13,4 +13,5 @@ SERIAL_CONSOLE = "115200 ttyS0"

MACHINE_FEATURES = "kernel26 keyboard pci ext2 ext3 serial"

-PREFERRED_PROVIDER_virtual/kernel = "linux-yocto"
+PREFERRED_PROVIDER_virtual/kernel = "linux-yocto-stable"
+#PREFERRED_PROVIDER_linux-libc-headers ?= "linux-libc-headers-yocto"
diff --git a/meta/conf/machine/routerstationpro.conf
b/meta/conf/machine/routerstationpro.conf
index 485ee3c..4f1bbbb 100644
--- a/meta/conf/machine/routerstationpro.conf
+++ b/meta/conf/machine/routerstationpro.conf
@@ -12,7 +12,8 @@ MACHINE_FEATURES = "kernel26 screen keyboard pci
usbhost ext2 ext3 \
KERNEL_IMAGETYPE = "vmlinux"
KERNEL_ALT_IMAGETYPE = "vmlinux.bin"

-PREFERRED_PROVIDER_virtual/kernel = "linux-yocto"
+PREFERRED_PROVIDER_virtual/kernel = "linux-yocto-stable"
+#PREFERRED_PROVIDER_linux-libc-headers ?= "linux-libc-headers-yocto"

SERIAL_CONSOLE = "115200 ttyS0"

diff --git
a/meta/recipes-kernel/linux-libc-headers/linux-libc-headers-yocto_git.bb
b/meta/recipes-kernel/linux-libc-headers/linux-libc-headers-yocto_git.bb
index 6ae6d5f..3e3c1fa 100644
---
a/meta/recipes-kernel/linux-libc-headers/linux-libc-headers-yocto_git.bb
+++
b/meta/recipes-kernel/linux-libc-headers/linux-libc-headers-yocto_git.bb
@@ -4,7 +4,7 @@ INHIBIT_DEFAULT_DEPS = "1"
DEPENDS += "unifdef-native"
PROVIDES = "linux-libc-headers"
PV = "2.6.34+git-${SRCPV}"
-PR = "r0"
+PR = "r1"

SRC_URI = "git://git.pokylinux.org/linux-2.6-windriver.git;fullclone=1"

@@ -45,7 +45,7 @@ do_compile () {

do_install() {
set_arch
- oe_runmake headers_install_all INSTALL_HDR_PATH=${D}${exec_prefix}
ARCH=$ARCH
+ oe_runmake headers_install INSTALL_HDR_PATH=${D}${exec_prefix}
ARCH=$ARCH
}

BBCLASSEXTEND = "nativesdk"
diff --git a/meta/recipes-kernel/linux/linux-tools.inc
b/meta/recipes-kernel/linux/linux-tools.inc
new file mode 100644
index 0000000..714207f
--- /dev/null
+++ b/meta/recipes-kernel/linux/linux-tools.inc
@@ -0,0 +1,19 @@
+# included by kernel recipes if they want to build/provide
+# perf functionality from their tree.
+
+do_compile_perf() {
+ oe_runmake -C ${S}/tools/perf CC="${KERNEL_CC}" LD="${KERNEL_LD}"
prefix=${prefix}
+}
+
+do_install_perf() {
+ oe_runmake -C ${S}/tools/perf CC="${KERNEL_CC}" LD="${KERNEL_LD}"
prefix=${prefix} DESTDIR=${D} install
+}
+
+
+# perf tasks
+addtask compile_perf after do_compile before do_install
+addtask install_perf after do_install before do_package do_deploy
+
+do_compile_perf[depends] = "virtual/libc:do_populate_sysroot"
+do_compile_perf[depends] =+ "elfutils:do_populate_sysroot"
+RDEPENDS_perf += "python perl elfutils"
diff --git a/meta/recipes-kernel/linux/linux-yocto-stable_git.bb
b/meta/recipes-kernel/linux/linux-yocto-stable_git.bb
new file mode 100644
index 0000000..8ecd86f
--- /dev/null
+++ b/meta/recipes-kernel/linux/linux-yocto-stable_git.bb
@@ -0,0 +1,41 @@
+inherit kernel
+require linux-yocto.inc
+
+KMACHINE_qemux86 = "common_pc/base"
+KMACHINE_qemux86-64 = "common_pc_64"
+KMACHINE_qemuppc = "qemu_ppc32"
+KMACHINE_qemumips = "mti_malta32_be"
+KMACHINE_qemuarm = "arm_versatile_926ejs"
+KMACHINE_atom-pc = "atom-pc"
+KMACHINE_routerstationpro = "routerstationpro"
+KMACHINE_mpc8315e-rdb = "fsl-mpc8315e-rdb"
+KMACHINE_beagleboard = "beagleboard"
+
+LINUX_VERSION ?= "2.6.34"
+LINUX_VERSION_EXTENSION ?= "-yocto-${LINUX_KERNEL_TYPE}"
+PR = "r0"
+PV = "${LINUX_VERSION}+git${SRCPV}"
+SRCREV_FORMAT = "meta_machine"
+
+# this performs a fixup on the SRCREV for new/undefined BSPs
+python __anonymous () {
+ import bb, re
+
+ rev = bb.data.getVar("SRCREV_machine", d, 1)
+ if rev == "standard":
+ bb.data.setVar("SRCREV_machine", "${SRCREV_meta}", d)
+}
+
+SRC_URI =
"git://git.pokylinux.org/linux-2.6-windriver.git;protocol=git;fullclone=1;branch=${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 linux-tools.inc
diff --git a/meta/recipes-kernel/linux/linux-yocto.inc
b/meta/recipes-kernel/linux/linux-yocto.inc
new file mode 100644
index 0000000..095b337
--- /dev/null
+++ b/meta/recipes-kernel/linux/linux-yocto.inc
@@ -0,0 +1,23 @@
+DESCRIPTION = "Yocto Kernel"
+SECTION = "kernel"
+LICENSE = "GPL"
+
+# A KMACHINE is the mapping of a yocto $MACHINE to what is built
+# by the kernel. This is typically the branch that should be built,
+# and it can be specific to the machine or shared
+KMACHINE = "UNDEFINED"
+
+COMPATIBLE_MACHINE =
"(qemuarm|qemux86|qemuppc|qemumips|qemux86-64|atom-pc|routerstationpro)"
+
+# Set this to 'preempt_rt' in the local.conf if you want a real time
kernel
+LINUX_KERNEL_TYPE ?= standard
+
+do_patch[depends] = "kern-tools-native:do_populate_sysroot"
+
+addtask kernel_configme before do_configure after do_patch
+addtask kernel_configcheck after do_configure before do_compile
+
+# Pick up shared functions
+inherit kernel-yocto
+
+B = "${WORKDIR}/linux-${KMACHINE}-${LINUX_KERNEL_TYPE}-build"
diff --git a/meta/recipes-kernel/linux/linux-yocto_git.bb
b/meta/recipes-kernel/linux/linux-yocto_git.bb
index ef005ae..db2e90b 100644
--- a/meta/recipes-kernel/linux/linux-yocto_git.bb
+++ b/meta/recipes-kernel/linux/linux-yocto_git.bb
@@ -1,21 +1,7 @@
-DESCRIPTION = "Yocto Kernel"
-SECTION = "kernel"
-LICENSE = "GPL"
-
-# Set this to 'preempt_rt' in the local.conf if you want a real time
kernel
-LINUX_KERNEL_TYPE ?= standard
-SRCREV_FORMAT = "meta_machine"
-PV = "2.6.34+git${SRCPV}"
-
-# To use a staged, on-disk bare clone of a Wind River Kernel, use a
-# variant of the below
-# SRC_URI = "git://///path/to/kernel/default_kernel.git;fullclone=1"
-SRC_URI =
"git://git.pokylinux.org/linux-2.6-windriver.git;protocol=git;fullclone=1;branch=${KBRANCH};name=machine
\
-
git://git.pokylinux.org/linux-2.6-windriver.git;protocol=git;noclone=1;branch=wrs_meta;name=meta"

+inherit kernel
+require linux-yocto.inc

-# map the poky machine to a 'kernel machine'
-KMACHINE = "UNDEFINED"
-KMACHINE_qemux86 = "common_pc"
+KMACHINE_qemux86 = "common_pc/base"
KMACHINE_qemux86-64 = "common_pc_64"
KMACHINE_qemuppc = "qemu_ppc32"
KMACHINE_qemumips = "mti_malta32_be"
@@ -25,199 +11,45 @@ KMACHINE_routerstationpro = "routerstationpro"
KMACHINE_mpc8315e-rdb = "fsl-mpc8315e-rdb"
KMACHINE_beagleboard = "beagleboard"

-# Determine which branch to fetch and build. Not all branches are in the
-# upstream repo (but will be locally created after the fetchers run) so
-# a fallback branch needs to be chosen.
-#
-# The default machine 'UNDEFINED'. If the machine is not set to a
specific
-# branch in this recipe or in a recipe extension, then we fallback to a
-# branch that is always present 'standard'. This sets the KBRANCH
variable
-# and is used in the SRC_URI. The machine is then set back to
${MACHINE},
-# since futher processing will use that to create local branches
+# Holding area for board REVs until the full switch to this
+# recipe is complete
+SRCREV_machine_pn-linux-yocto_qemuarm =
"87e00a2d47ba80b4ad1f9170cb3f6cf81f21d739"
+SRCREV_machine_pn-linux-yocto_qemumips =
"7231e473dd981a28e3cea9f677ed60583e731550"
+SRCREV_machine_pn-linux-yocto_qemuppc =
"3ab3559637130b65d8889fa74286fdb57935726f"
+SRCREV_machine_pn-linux-yocto_qemux86 =
"87aacc373557f8849dde8618fbe1f7f8f2af6038"
+SRCREV_machine_pn-linux-yocto_qemux86-64 =
"87aacc373557f8849dde8618fbe1f7f8f2af6038"
+SRCREV_machine_pn-linux-yocto_emenlow =
"87aacc373557f8849dde8618fbe1f7f8f2af6038"
+SRCREV_machine_pn-linux-yocto_atom-pc =
"87aacc373557f8849dde8618fbe1f7f8f2af6038"
+SRCREV_machine_pn-linux-yocto_routerstationpro =
"773d3a1c8eba563ffcdbf61057ef6e39cee0c88b"
+SRCREV_machine_pn-linux-yocto_mpc8315e-rdb =
"5ff609967ffe87c49d534d7861a7e0b150517726"
+SRCREV_machine_pn-linux-yocto_beagleboard =
"87aacc373557f8849dde8618fbe1f7f8f2af6038"
+SRCREV_meta_pn-linux-yocto = "ee0a10ab687b29c4d22d47e5b28bc8b3ebb7a8d9"
+
+LINUX_VERSION ?= "2.6.37"
+LINUX_VERSION_EXTENSION ?= "-yocto-${LINUX_KERNEL_TYPE}"
+PR = "r14"
+PV = "${LINUX_VERSION}+git${SRCPV}"
+SRCREV_FORMAT = "meta_machine"
+
+# this performs a fixup on the SRCREV for new/undefined BSPs
python __anonymous () {
import bb, re

- bb.data.setVar("KBRANCH", "${KMACHINE}-${LINUX_KERNEL_TYPE}", d)
- mach = bb.data.getVar("KMACHINE", d, 1)
- if mach == "UNDEFINED":
- bb.data.setVar("KBRANCH", "standard", d)
- bb.data.setVar("KMACHINE", "${MACHINE}", d)
- # track the global configuration on a bootstrapped BSP
+ rev = bb.data.getVar("SRCREV_machine", d, 1)
+ if rev == "standard":
bb.data.setVar("SRCREV_machine", "${SRCREV_meta}", d)
- bb.data.setVar("BOOTSTRAP", "t", d)
}

-COMPATIBLE_MACHINE =
"(qemuarm|qemux86|qemuppc|qemumips|qemux86-64|atom-pc|routerstationpro|mpc8315e-rdb|beagleboard)"

-
-LINUX_VERSION = "v2.6.34"
-LINUX_VERSION_EXTENSION = "-wr-${LINUX_KERNEL_TYPE}"
-PR = "r13"
+SRC_URI =
"git://git.pokylinux.org/linux-yocto-2.6.37;protocol=git;fullclone=1;branch=${KBRANCH};name=machine
\
+
git://git.pokylinux.org/linux-yocto-2.6.37;protocol=git;noclone=1;branch=meta;name=meta"


-S = "${WORKDIR}/linux"
-B = "${WORKDIR}/linux-${KMACHINE}-${LINUX_KERNEL_TYPE}-build"

-# functionality flags
+# Functionality flags
KERNEL_REVISION_CHECKING ?= "t"
KERNEL_FEATURES=features/netfilter

-do_patch() {
- cd ${S}
- if [ -f ${WORKDIR}/defconfig ]; then
- defconfig=${WORKDIR}/defconfig
- fi
-
- # simply ensures that a branch of the right name has been created
- createme ${ARCH} ${KMACHINE}-${LINUX_KERNEL_TYPE} ${defconfig}
- if [ $? -ne 0 ]; then
- echo "ERROR. Could not create ${KMACHINE}-${LINUX_KERNEL_TYPE}"
- exit 1
- fi
-
- # updates or generates the target description
- if [ -n "${KERNEL_FEATURES}" ]; then
- addon_features="--features ${KERNEL_FEATURES}"
- fi
- updateme ${addon_features} ${ARCH} ${WORKDIR}
- if [ $? -ne 0 ]; then
- echo "ERROR. Could not update ${KMACHINE}-${LINUX_KERNEL_TYPE}"
- exit 1
- fi
-
- # executes and modifies the source tree as required
- patchme ${KMACHINE}-${LINUX_KERNEL_TYPE}
- if [ $? -ne 0 ]; then
- echo "ERROR. Could not modify ${KMACHINE}-${LINUX_KERNEL_TYPE}"
- exit 1
- fi
-}
-
-validate_branches() {
- branch_head=`git show-ref -s --heads ${KBRANCH}`
- meta_head=`git show-ref -s --heads wrs_meta`
- target_branch_head="${SRCREV_machine}"
- target_meta_head="${SRCREV_meta}"
-
- if [ -n "$target_branch_head" ]&& [ "$branch_head" !=
"$target_branch_head" ]; then
- if [ -n "${KERNEL_REVISION_CHECKING}" ]; then
- git show ${target_branch_head}> /dev/null 2>&1
- if [ $? -eq 0 ]; then
- echo "Forcing branch ${KMACHINE}-${LINUX_KERNEL_TYPE} to
${target_branch_head}"
- git branch -m ${KMACHINE}-${LINUX_KERNEL_TYPE}
${KMACHINE}-${LINUX_KERNEL_TYPE}-orig
- git checkout -b ${KMACHINE}-${LINUX_KERNEL_TYPE} ${target_branch_head}
- else
- echo "ERROR ${target_branch_head} is not a valid commit ID."
- echo "The kernel source tree may be out of sync"
- exit 1
- fi
- fi
- fi
-
- if [ "$meta_head" != "$target_meta_head" ]; then
- if [ -n "${KERNEL_REVISION_CHECKING}" ]; then
- git show ${target_meta_head}> /dev/null 2>&1
- if [ $? -eq 0 ]; then
- echo "Forcing branch wrs_meta to ${target_meta_head}"
- git branch -m wrs_meta wrs_meta-orig
- git checkout -b wrs_meta ${target_meta_head}
- else
- echo "ERROR ${target_meta_head} is not a valid commit ID"
- echo "The kernel source tree may be out of sync"
- exit 1
- fi
- fi
- fi
-}
-
-do_kernel_checkout() {
- if [ -d ${WORKDIR}/.git/refs/remotes/origin ]; then
- echo "Fixing up git directory for ${KMACHINE}-${LINUX_KERNEL_TYPE}"
- rm -rf ${S}
- mkdir ${S}
- mv ${WORKDIR}/.git ${S}
-
- if [ -e ${S}/.git/packed-refs ]; then
- cd ${S}
- rm -f .git/refs/remotes/origin/HEAD
-IFS='
-';
-
- for r in `git show-ref | grep remotes`; do
- ref=`echo $r | cut -d' ' -f1`;
- b=`echo $r | cut -d'/' -f4`;
- echo $ref> .git/refs/heads/$b
- done
- cd ..
- else
- mv ${S}/.git/refs/remotes/origin/* ${S}/.git/refs/heads
- rmdir ${S}/.git/refs/remotes/origin
- fi
- fi
- cd ${S}
-
- # checkout and clobber and unimportant files
- git checkout -f ${KBRANCH}
-
- if [ -z "${BOOTSTRAP}" ]; then
- validate_branches
- fi
-
- # this second checkout is intentional, we want to leave ourselves
- # on the branch to be built, but validate_branches could have changed
- # our initial checkout. So we do it a second time to be sure
- git checkout -f ${KBRANCH}
-}
-do_kernel_checkout[dirs] = "${S}"
-
-addtask kernel_checkout before do_patch after do_unpack
-
-do_kernel_configme() {
- echo "Doing kernel configme"
-
- cd ${S}
- configme --reconfig
- if [ $? -ne 0 ]; then
- echo "ERROR. Could not configure ${KMACHINE}-${LINUX_KERNEL_TYPE}"
- exit 1
- fi
-
- echo "# CONFIG_WRNOTE is not set">> ${B}/.config
- echo "# Global settings from linux recipe">> ${B}/.config
- echo "CONFIG_LOCALVERSION="\"${LINUX_VERSION_EXTENSION}\">>
${B}/.config
-}
-
-do_kernel_configcheck() {
- echo "[INFO] validating kernel configuration"
- cd ${B}/..
- kconf_check ${B}/.config ${B} ${S} ${B} ${LINUX_VERSION}
${KMACHINE}-${LINUX_KERNEL_TYPE}
-}
-
-do_kernel_link_vmlinux() {
- if [ ! -d "${B}/arch/${ARCH}/boot" ]; then
- mkdir ${B}/arch/${ARCH}/boot
- fi
- cd ${B}/arch/${ARCH}/boot
- ln -sf ../../../vmlinux
-}
-
-do_compile_perf() {
- oe_runmake -C ${S}/tools/perf CC="${KERNEL_CC}" LD="${KERNEL_LD}"
prefix=${prefix}
-}
-
-do_install_perf() {
- oe_runmake -C ${S}/tools/perf CC="${KERNEL_CC}" LD="${KERNEL_LD}"
prefix=${prefix} DESTDIR=${D} install
-}
-
-do_patch[depends] = "kern-tools-native:do_populate_sysroot"
-addtask kernel_configme before do_configure after do_patch
+# extra tasks
addtask kernel_link_vmlinux after do_compile before do_install
-addtask kernel_configcheck after do_configure before do_compile
-
-inherit kernel
-
-# perf tasks
-addtask compile_perf after do_compile before do_install
-addtask install_perf after do_install before do_package do_deploy
+addtask validate_branches before do_patch after do_kernel_checkout

-do_compile_perf[depends] = "virtual/libc:do_populate_sysroot"
-do_compile_perf[depends] =+ "elfutils:do_populate_sysroot"
-RDEPENDS_perf += "python perl elfutils"
+require linux-tools.inc
_______________________________________________
yocto mailing list
yocto@...
https://lists.yoctoproject.org/listinfo/yocto


Darren Hart <dvhart@...>
 

On 12/08/2010 12:20 PM, Bruce Ashfield wrote:
On 10-12-08 09:35 AM, Bruce Ashfield wrote:
In order to extend and create more kernel recipes based on the
supported yocto kernel common routines need to be placed in
re-usable blocks.
There may be a minor problem with this, stay tuned.

I just had a strange failure when I built the 2.6.37
kernel .. it blew up in the SRCREVs for the -stable
kernel. Looking into it.
I was just about to report this :-). I also see these sorts of issues when working with other kernel recipes, and I haven't gotten to the bottom of it yet. I see this with the linux-linaro for instance (the error occurs while parsing the linux-yocto_git.bb - it was linux-wrs_git.bb at the time).

Please let us know if what you find if you get the bottom of it first.

--
Darren Hart
Yocto Linux Kernel


Darren Hart <dvhart@...>
 

On 12/08/2010 06:35 AM, Bruce Ashfield wrote:
In order to extend and create more kernel recipes based on the
supported yocto kernel common routines need to be placed in
re-usable blocks.

To accomplish this meta/recipes-kernel/linux/linux-yocto_git.bb
is broken into three parts:
.../recipes-kernel/linux/linux-yocto-stable_git.bb | 41 ++++
Now that the git tree permissions for 2.6.37 are public (not sure how that impacted this) I am still seeing SRC_REV related parsing errors of linux-yocto-stable_git.bb. Do you have this working Bruce?

$ bitbake linux-yocto-stable
NOTE: Out of date cache found, rebuilding...
NOTE: Handling BitBake files: - (0003/0760) [ 0 %]NOTE: <class 'bb.fetch.InvalidSRCREV'>:Please set SRCREV to a valid value while evaluating:
${@bb.fetch.get_srcrev(d)}
NOTE: <class 'bb.fetch.InvalidSRCREV'>:Please set SRCREV to a valid value while evaluating:
${LINUX_VERSION}+git${SRCPV}
NOTE: <class 'bb.fetch.InvalidSRCREV'>:Please set SRCREV to a valid value while evaluating:
${PN}-${EXTENDPE}${PV}-${PR}
NOTE: <class 'bb.fetch.InvalidSRCREV'>:Please set SRCREV to a valid value while evaluating:
${TMPDIR}/work/${MULTIMACH_TARGET_SYS}/${PF}
NOTE: <class 'bb.fetch.InvalidSRCREV'>:Please set SRCREV to a valid value while evaluating:
${WORKDIR}/linux
NOTE: <class 'bb.fetch.InvalidSRCREV'>:Please set SRCREV to a valid value while evaluating:
cd ${S}
if [ -f ${WORKDIR}/defconfig ]; then
defconfig=${WORKDIR}/defconfig
fi

if [ -n "${BOOTSTRAP}" ]; then
kbranch="yocto/${LINUX_KERNEL_TYPE}/${KMACHINE}"
else
kbranch=${KBRANCH}
fi

# simply ensures that a branch of the right name has been created
createme ${ARCH} ${kbranch} ${defconfig}
if [ $? -ne 0 ]; then
echo "ERROR. Could not create ${kbranch}"
exit 1
fi

# updates or generates the target description
if [ -n "${KERNEL_FEATURES}" ]; then
addon_features="--features ${KERNEL_FEATURES}"
fi
updateme ${addon_features} ${ARCH} ${WORKDIR}
if [ $? -ne 0 ]; then
echo "ERROR. Could not update ${kbranch}"
exit 1
fi

# executes and modifies the source tree as required
patchme ${kbranch}
if [ $? -ne 0 ]; then
echo "ERROR. Could not modify ${kbranch}"
exit 1
fi

NOTE: Error expanding variable do_patch
ERROR: Please set SRCREV to a valid value while parsing /home/dvhart/source/poky.git/meta/recipes-kernel/linux/linux-yocto-stable_git.bb
NOTE: Handling BitBake files: / (0311/0760) [40 %]NOTE: <class 'bb.fetch.InvalidSRCREV'>:Please set SRCREV to a valid value while evaluating:
${@bb.fetch.get_srcrev(d)}

Thanks,

--
Darren Hart
Yocto Linux Kernel


Bruce Ashfield <bruce.ashfield@...>
 

On 10-12-09 03:49 PM, Darren Hart wrote:
On 12/08/2010 06:35 AM, Bruce Ashfield wrote:
In order to extend and create more kernel recipes based on the
supported yocto kernel common routines need to be placed in
re-usable blocks.

To accomplish this meta/recipes-kernel/linux/linux-yocto_git.bb
is broken into three parts:
.../recipes-kernel/linux/linux-yocto-stable_git.bb | 41 ++++
Now that the git tree permissions for 2.6.37 are public (not sure how
that impacted this) I am still seeing SRC_REV related parsing errors of
linux-yocto-stable_git.bb. Do you have this working Bruce?
Yep. This is what I found and fixed yesterday. I can't
say that I completely understand my fix, but it is building
all my trees here today, with all the right SRCREVs.

I'm digging a bit more before sending updated patches.

Bruce


$ bitbake linux-yocto-stable
NOTE: Out of date cache found, rebuilding...
NOTE: Handling BitBake files: - (0003/0760) [ 0 %]NOTE: <class
'bb.fetch.InvalidSRCREV'>:Please set SRCREV to a valid value while
evaluating:
${@bb.fetch.get_srcrev(d)}
NOTE: <class 'bb.fetch.InvalidSRCREV'>:Please set SRCREV to a valid
value while evaluating:
${LINUX_VERSION}+git${SRCPV}
NOTE: <class 'bb.fetch.InvalidSRCREV'>:Please set SRCREV to a valid
value while evaluating:
${PN}-${EXTENDPE}${PV}-${PR}
NOTE: <class 'bb.fetch.InvalidSRCREV'>:Please set SRCREV to a valid
value while evaluating:
${TMPDIR}/work/${MULTIMACH_TARGET_SYS}/${PF}
NOTE: <class 'bb.fetch.InvalidSRCREV'>:Please set SRCREV to a valid
value while evaluating:
${WORKDIR}/linux
NOTE: <class 'bb.fetch.InvalidSRCREV'>:Please set SRCREV to a valid
value while evaluating:
cd ${S}
if [ -f ${WORKDIR}/defconfig ]; then
defconfig=${WORKDIR}/defconfig
fi

if [ -n "${BOOTSTRAP}" ]; then
kbranch="yocto/${LINUX_KERNEL_TYPE}/${KMACHINE}"
else
kbranch=${KBRANCH}
fi

# simply ensures that a branch of the right name has been created
createme ${ARCH} ${kbranch} ${defconfig}
if [ $? -ne 0 ]; then
echo "ERROR. Could not create ${kbranch}"
exit 1
fi

# updates or generates the target description
if [ -n "${KERNEL_FEATURES}" ]; then
addon_features="--features ${KERNEL_FEATURES}"
fi
updateme ${addon_features} ${ARCH} ${WORKDIR}
if [ $? -ne 0 ]; then
echo "ERROR. Could not update ${kbranch}"
exit 1
fi

# executes and modifies the source tree as required
patchme ${kbranch}
if [ $? -ne 0 ]; then
echo "ERROR. Could not modify ${kbranch}"
exit 1
fi

NOTE: Error expanding variable do_patch
ERROR: Please set SRCREV to a valid value while parsing
/home/dvhart/source/poky.git/meta/recipes-kernel/linux/linux-yocto-stable_git.bb

NOTE: Handling BitBake files: / (0311/0760) [40 %]NOTE: <class
'bb.fetch.InvalidSRCREV'>:Please set SRCREV to a valid value while
evaluating:
${@bb.fetch.get_srcrev(d)}

Thanks,


Bruce Ashfield <bruce.ashfield@...>
 

On 10-12-09 3:49 PM, Darren Hart wrote:
On 12/08/2010 06:35 AM, Bruce Ashfield wrote:
In order to extend and create more kernel recipes based on the
supported yocto kernel common routines need to be placed in
re-usable blocks.

To accomplish this meta/recipes-kernel/linux/linux-yocto_git.bb
is broken into three parts:
.../recipes-kernel/linux/linux-yocto-stable_git.bb | 41 ++++
Now that the git tree permissions for 2.6.37 are public (not sure how
that impacted this) I am still seeing SRC_REV related parsing errors of
linux-yocto-stable_git.bb. Do you have this working Bruce?
FYI: I've solved this 'for real' now, and I've fixed the SRCREV
issue that I found at the end of my day. I wasn't thinking straight
when I set this up, and I simply neglected to provide valid
SRCREVs for the -stable variant of the kernel. That has allowed
me to remove the SRCREVs from the specific recipes and centralize
the support.

The hack I sent earlier is no longer needed and everything now
looks good. v2 of the series for merge will be out shortly.

Bruce


$ bitbake linux-yocto-stable
NOTE: Out of date cache found, rebuilding...
NOTE: Handling BitBake files: - (0003/0760) [ 0 %]NOTE: <class
'bb.fetch.InvalidSRCREV'>:Please set SRCREV to a valid value while
evaluating:
${@bb.fetch.get_srcrev(d)}
NOTE: <class 'bb.fetch.InvalidSRCREV'>:Please set SRCREV to a valid
value while evaluating:
${LINUX_VERSION}+git${SRCPV}
NOTE: <class 'bb.fetch.InvalidSRCREV'>:Please set SRCREV to a valid
value while evaluating:
${PN}-${EXTENDPE}${PV}-${PR}
NOTE: <class 'bb.fetch.InvalidSRCREV'>:Please set SRCREV to a valid
value while evaluating:
${TMPDIR}/work/${MULTIMACH_TARGET_SYS}/${PF}
NOTE: <class 'bb.fetch.InvalidSRCREV'>:Please set SRCREV to a valid
value while evaluating:
${WORKDIR}/linux
NOTE: <class 'bb.fetch.InvalidSRCREV'>:Please set SRCREV to a valid
value while evaluating:
cd ${S}
if [ -f ${WORKDIR}/defconfig ]; then
defconfig=${WORKDIR}/defconfig
fi

if [ -n "${BOOTSTRAP}" ]; then
kbranch="yocto/${LINUX_KERNEL_TYPE}/${KMACHINE}"
else
kbranch=${KBRANCH}
fi

# simply ensures that a branch of the right name has been created
createme ${ARCH} ${kbranch} ${defconfig}
if [ $? -ne 0 ]; then
echo "ERROR. Could not create ${kbranch}"
exit 1
fi

# updates or generates the target description
if [ -n "${KERNEL_FEATURES}" ]; then
addon_features="--features ${KERNEL_FEATURES}"
fi
updateme ${addon_features} ${ARCH} ${WORKDIR}
if [ $? -ne 0 ]; then
echo "ERROR. Could not update ${kbranch}"
exit 1
fi

# executes and modifies the source tree as required
patchme ${kbranch}
if [ $? -ne 0 ]; then
echo "ERROR. Could not modify ${kbranch}"
exit 1
fi

NOTE: Error expanding variable do_patch
ERROR: Please set SRCREV to a valid value while parsing
/home/dvhart/source/poky.git/meta/recipes-kernel/linux/linux-yocto-stable_git.bb

NOTE: Handling BitBake files: / (0311/0760) [40 %]NOTE: <class
'bb.fetch.InvalidSRCREV'>:Please set SRCREV to a valid value while
evaluating:
${@bb.fetch.get_srcrev(d)}

Thanks,