[OE-core] [PATCH] kernel: Add support for multiple kernel packages
Haris Okanovic
haris.okanovic at ni.com
Mon Dec 14 19:06:38 UTC 2015
From: Gratian Crisan <gratian.crisan at ni.com>
Templetize kernel package name:
Add a "weak" variable KERNEL_PACKAGE_NAME used as the base name for kernel
packages. It defaults to the old hard-coded name 'kernel' but it can be
redefined by recipes that provide additional kernel packages in order
to avoid build conflicts.
Change hard-coded 'kernel' references to KERNEL_PACKAGE_NAME in
kernel bbclass-es.
Build alternate kernels from WORKDIR instead of STAGING_KERNEL_DIR:
Prior to this change, kernel recipes would all fetch source to
STAGING_KERNEL_DIR as defined by bitbake/distro confs. This broke
parallel builds when more than one kernel recipes are defined in
the distribution, since they all attempted to fetch() and patch()
in a shared source dir.
With this change, alternate kernel recipes fetch source into their
${WORKDIR} so that they may build in parallel to each other and the
default kernel recipe, which still fetches to STAGING_KERNEL_DIR.
Testing:
Built linux-yocto-4.1.13 for qemux86 and verified it produced kernel
image and modules packages. Added kernel recipe with non-default
KERNEL_PACKAGE_NAME and verified it produces kernel image and modules
packages with alternate name next to default kernel.
Signed-off-by: Gratian Crisan <gratian.crisan at ni.com>
Signed-off-by: Haris Okanovic <haris.okanovic at ni.com>
Coauthored-by: Haris Okanovic <haris.okanovic at ni.com>
Coauthored-by: Josh Hernstrom <josh.hernstrom at ni.com>
Natinst-ReviewBoard-ID: 120348
Natinst-ReviewBoard-ID: 120447
---
meta/classes/kernel-module-split.bbclass | 9 ++--
meta/classes/kernel.bbclass | 71 ++++++++++++++++++--------------
meta/conf/documentation.conf | 1 +
meta/recipes-kernel/linux/linux-dtb.inc | 2 +-
4 files changed, 49 insertions(+), 34 deletions(-)
diff --git a/meta/classes/kernel-module-split.bbclass b/meta/classes/kernel-module-split.bbclass
index e1a70e6..7415ec8 100644
--- a/meta/classes/kernel-module-split.bbclass
+++ b/meta/classes/kernel-module-split.bbclass
@@ -28,7 +28,7 @@ do_install_append() {
PACKAGESPLITFUNCS_prepend = "split_kernel_module_packages "
-KERNEL_MODULES_META_PACKAGE ?= "kernel-modules"
+KERNEL_MODULES_META_PACKAGE ?= "${KERNEL_PACKAGE_NAME}-modules"
python split_kernel_module_packages () {
import re
@@ -179,14 +179,17 @@ python split_kernel_module_packages () {
# Avoid automatic -dev recommendations for modules ending with -dev.
d.setVarFlag('RRECOMMENDS_' + pkg, 'nodeprrecs', 1)
+ kernel_package_name = d.getVar("KERNEL_PACKAGE_NAME", True)
+ kernel_version = d.getVar("KERNEL_VERSION", True)
+
module_deps = parse_depmod()
module_regex = '^(.*)\.k?o$'
- module_pattern = 'kernel-module-%s'
+ module_pattern = '%s-module-%%s' % kernel_package_name
postinst = d.getVar('pkg_postinst_modules', True)
postrm = d.getVar('pkg_postrm_modules', True)
- modules = do_split_packages(d, root='/lib/modules', file_regex=module_regex, output_pattern=module_pattern, description='%s kernel module', postinst=postinst, postrm=postrm, recursive=True, hook=frob_metadata, extra_depends='kernel-%s' % (d.getVar("KERNEL_VERSION", True)))
+ modules = do_split_packages(d, root='/lib/modules', file_regex=module_regex, output_pattern=module_pattern, description='%s kernel module', postinst=postinst, postrm=postrm, recursive=True, hook=frob_metadata, extra_depends='%s-%s' % (kernel_package_name, kernel_version))
if modules:
metapkg = d.getVar('KERNEL_MODULES_META_PACKAGE', True)
d.appendVar('RDEPENDS_' + metapkg, ' '+' '.join(modules))
diff --git a/meta/classes/kernel.bbclass b/meta/classes/kernel.bbclass
index b75a462..cc27364 100644
--- a/meta/classes/kernel.bbclass
+++ b/meta/classes/kernel.bbclass
@@ -3,7 +3,6 @@ inherit linux-kernel-base kernel-module-split
PROVIDES += "virtual/kernel"
DEPENDS += "virtual/${TARGET_PREFIX}binutils virtual/${TARGET_PREFIX}gcc kmod-native depmodwrapper-cross bc-native"
-S = "${STAGING_KERNEL_DIR}"
B = "${WORKDIR}/build"
KBUILD_OUTPUT = "${B}"
OE_TERMINAL_EXPORTS += "KBUILD_OUTPUT"
@@ -11,6 +10,7 @@ OE_TERMINAL_EXPORTS += "KBUILD_OUTPUT"
# we include gcc above, we dont need virtual/libc
INHIBIT_DEFAULT_DEPS = "1"
+KERNEL_PACKAGE_NAME ??= "kernel"
KERNEL_IMAGETYPE ?= "zImage"
INITRAMFS_IMAGE ?= ""
INITRAMFS_TASK ?= ""
@@ -34,6 +34,17 @@ python __anonymous () {
image_task = d.getVar('INITRAMFS_TASK', True)
if image_task:
d.appendVarFlag('do_configure', 'depends', ' ${INITRAMFS_TASK}')
+
+ # The default kernel recipe fetches it's source to
+ # STAGING_KERNEL_DIR as defined by bitbake/distro confs.
+ # Alternate kernel recipes (E.g. debug kernels) fetch source into
+ # their work dir so that they may build in parallel.
+ if d.getVar("KERNEL_PACKAGE_NAME", True) == "kernel":
+ d.setVar("S", d.getVar("STAGING_KERNEL_DIR", True))
+ else:
+ workdir = d.getVar("WORKDIR", True)
+ kernelSourceDir = os.path.join(workdir, 'kernel-source')
+ d.setVar("S", kernelSourceDir)
}
# Here we pull in all various kernel image types which we support.
@@ -79,9 +90,9 @@ base_do_unpack_append () {
inherit kernel-arch deploy
-PACKAGES_DYNAMIC += "^kernel-module-.*"
-PACKAGES_DYNAMIC += "^kernel-image-.*"
-PACKAGES_DYNAMIC += "^kernel-firmware-.*"
+PACKAGES_DYNAMIC += "^${KERNEL_PACKAGE_NAME}-module-.*"
+PACKAGES_DYNAMIC += "^${KERNEL_PACKAGE_NAME}-image-.*"
+PACKAGES_DYNAMIC += "^${KERNEL_PACKAGE_NAME}-firmware-.*"
export OS = "${TARGET_OS}"
export CROSS_COMPILE = "${TARGET_PREFIX}"
@@ -270,9 +281,9 @@ do_shared_workdir_setscene () {
emit_depmod_pkgdata() {
# Stash data for depmod
- install -d ${PKGDESTWORK}/kernel-depmod/
- echo "${KERNEL_VERSION}" > ${PKGDESTWORK}/kernel-depmod/kernel-abiversion
- cp ${B}/System.map ${PKGDESTWORK}/kernel-depmod/System.map-${KERNEL_VERSION}
+ install -d ${PKGDESTWORK}/${KERNEL_PACKAGE_NAME}-depmod/
+ echo "${KERNEL_VERSION}" > ${PKGDESTWORK}/${KERNEL_PACKAGE_NAME}-depmod/${KERNEL_PACKAGE_NAME}-abiversion
+ cp ${B}/System.map ${PKGDESTWORK}/${KERNEL_PACKAGE_NAME}-depmod/System.map-${KERNEL_VERSION}
}
PACKAGEFUNCS += "emit_depmod_pkgdata"
@@ -287,7 +298,7 @@ do_shared_workdir () {
# Store the kernel version in sysroots for module-base.bbclass
#
- echo "${KERNEL_VERSION}" > $kerneldir/kernel-abiversion
+ echo "${KERNEL_VERSION}" > $kerneldir/${KERNEL_PACKAGE_NAME}-abiversion
# Copy files required for module builds
cp System.map $kerneldir/System.map-${KERNEL_VERSION}
@@ -361,28 +372,28 @@ EXPORT_FUNCTIONS do_compile do_install do_configure
# kernel-base becomes kernel-${KERNEL_VERSION}
# kernel-image becomes kernel-image-${KERNEL_VERISON}
-PACKAGES = "kernel kernel-base kernel-vmlinux kernel-image kernel-dev kernel-modules"
+PACKAGES = "${KERNEL_PACKAGE_NAME} ${KERNEL_PACKAGE_NAME}-base ${KERNEL_PACKAGE_NAME}-vmlinux ${KERNEL_PACKAGE_NAME}-image ${KERNEL_PACKAGE_NAME}-dev ${KERNEL_PACKAGE_NAME}-modules"
FILES_${PN} = ""
-FILES_kernel-base = "/lib/modules/${KERNEL_VERSION}/modules.order /lib/modules/${KERNEL_VERSION}/modules.builtin"
-FILES_kernel-image = "/boot/${KERNEL_IMAGETYPE}*"
-FILES_kernel-dev = "/boot/System.map* /boot/Module.symvers* /boot/config* ${KERNEL_SRC_PATH} /lib/modules/${KERNEL_VERSION}/build"
-FILES_kernel-vmlinux = "/boot/vmlinux*"
-FILES_kernel-modules = ""
-RDEPENDS_kernel = "kernel-base"
+FILES_${KERNEL_PACKAGE_NAME}-base = "/lib/modules/${KERNEL_VERSION}/modules.order /lib/modules/${KERNEL_VERSION}/modules.builtin"
+FILES_${KERNEL_PACKAGE_NAME}-image = "/boot/${KERNEL_IMAGETYPE}*"
+FILES_${KERNEL_PACKAGE_NAME}-dev = "/boot/System.map* /boot/Module.symvers* /boot/config* ${KERNEL_SRC_PATH} /lib/modules/${KERNEL_VERSION}/build"
+FILES_${KERNEL_PACKAGE_NAME}-vmlinux = "/boot/vmlinux*"
+FILES_${KERNEL_PACKAGE_NAME}-modules = ""
+RDEPENDS_${KERNEL_PACKAGE_NAME} = "${KERNEL_PACKAGE_NAME}-base"
# Allow machines to override this dependency if kernel image files are
# not wanted in images as standard
-RDEPENDS_kernel-base ?= "kernel-image"
-PKG_kernel-image = "kernel-image-${@legitimize_package_name('${KERNEL_VERSION}')}"
-RDEPENDS_kernel-image += "${@base_conditional('KERNEL_IMAGETYPE', 'vmlinux', 'kernel-vmlinux', '', d)}"
-PKG_kernel-base = "kernel-${@legitimize_package_name('${KERNEL_VERSION}')}"
-RPROVIDES_kernel-base += "kernel-${KERNEL_VERSION}"
-ALLOW_EMPTY_kernel = "1"
-ALLOW_EMPTY_kernel-base = "1"
-ALLOW_EMPTY_kernel-image = "1"
-ALLOW_EMPTY_kernel-modules = "1"
-DESCRIPTION_kernel-modules = "Kernel modules meta package"
-
-pkg_postinst_kernel-base () {
+RDEPENDS_${KERNEL_PACKAGE_NAME}-base ?= "${KERNEL_PACKAGE_NAME}-image"
+PKG_${KERNEL_PACKAGE_NAME}-image = "${KERNEL_PACKAGE_NAME}-image-${@legitimize_package_name('${KERNEL_VERSION}')}"
+RDEPENDS_${KERNEL_PACKAGE_NAME}-image += "${@base_conditional('KERNEL_IMAGETYPE', 'vmlinux', '${KERNEL_PACKAGE_NAME}-vmlinux', '', d)}"
+PKG_${KERNEL_PACKAGE_NAME}-base = "${KERNEL_PACKAGE_NAME}-${@legitimize_package_name('${KERNEL_VERSION}')}"
+RPROVIDES_${KERNEL_PACKAGE_NAME}-base += "${KERNEL_PACKAGE_NAME}-${KERNEL_VERSION}"
+ALLOW_EMPTY_${KERNEL_PACKAGE_NAME} = "1"
+ALLOW_EMPTY_${KERNEL_PACKAGE_NAME}-base = "1"
+ALLOW_EMPTY_${KERNEL_PACKAGE_NAME}-image = "1"
+ALLOW_EMPTY_${KERNEL_PACKAGE_NAME}-modules = "1"
+DESCRIPTION_${KERNEL_PACKAGE_NAME}-modules = "Kernel modules meta package"
+
+pkg_postinst_${KERNEL_PACKAGE_NAME}-base () {
if [ ! -e "$D/lib/modules/${KERNEL_VERSION}" ]; then
mkdir -p $D/lib/modules/${KERNEL_VERSION}
fi
@@ -393,18 +404,18 @@ pkg_postinst_kernel-base () {
fi
}
-pkg_postinst_kernel-image () {
+pkg_postinst_${KERNEL_PACKAGE_NAME}-image () {
update-alternatives --install /${KERNEL_IMAGEDEST}/${KERNEL_IMAGETYPE} ${KERNEL_IMAGETYPE} /${KERNEL_IMAGEDEST}/${KERNEL_IMAGETYPE}-${KERNEL_VERSION} ${KERNEL_PRIORITY} || true
}
-pkg_postrm_kernel-image () {
+pkg_postrm_${KERNEL_PACKAGE_NAME}-image () {
update-alternatives --remove ${KERNEL_IMAGETYPE} ${KERNEL_IMAGETYPE}-${KERNEL_VERSION} || true
}
PACKAGESPLITFUNCS_prepend = "split_kernel_packages "
python split_kernel_packages () {
- do_split_packages(d, root='/lib/firmware', file_regex='^(.*)\.(bin|fw|cis|dsp)$', output_pattern='kernel-firmware-%s', description='Firmware for %s', recursive=True, extra_depends='')
+ do_split_packages(d, root='/lib/firmware', file_regex='^(.*)\.(bin|fw|cis|dsp)$', output_pattern='${KERNEL_PACKAGE_NAME}-firmware-%s', description='Firmware for %s', recursive=True, extra_depends='')
}
do_strip() {
diff --git a/meta/conf/documentation.conf b/meta/conf/documentation.conf
index 1b5c071..fb5e03f 100644
--- a/meta/conf/documentation.conf
+++ b/meta/conf/documentation.conf
@@ -250,6 +250,7 @@ KERNEL_FEATURES[doc] = "Includes additional metadata from the Yocto Project kern
KERNEL_IMAGETYPE[doc] = "The type of kernel to build for a device, usually set by the machine configuration files and defaults to 'zImage'."
KERNEL_MODULE_AUTOLOAD[doc] = "Lists kernel modules that need to be auto-loaded during boot"
KERNEL_MODULE_PROBECONF[doc] = "Lists kernel modules for which the build system expects to find module_conf_* values that specify configuration for each of the modules"
+KERNEL_PACKAGE_NAME[doc] = "Name prefix for kernel packages. Defaults to 'kernel'."
KERNEL_PATH[doc] = "The location of the kernel sources. This variable is set to the value of the STAGING_KERNEL_DIR within the module class (module.bbclass)."
KERNEL_SRC[doc] = "The location of the kernel sources. This variable is set to the value of the STAGING_KERNEL_DIR within the module class (module.bbclass)."
KFEATURE_DESCRIPTION[doc] = "Provides a short description of a configuration fragment. You use this variable in the .scc file that describes a configuration fragment file."
diff --git a/meta/recipes-kernel/linux/linux-dtb.inc b/meta/recipes-kernel/linux/linux-dtb.inc
index 772adcb..c27a3cb 100644
--- a/meta/recipes-kernel/linux/linux-dtb.inc
+++ b/meta/recipes-kernel/linux/linux-dtb.inc
@@ -2,7 +2,7 @@
FILES_kernel-devicetree = "/${KERNEL_IMAGEDEST}/devicetree*"
python __anonymous () {
- d.appendVar("PACKAGES", " kernel-devicetree")
+ d.appendVar("PACKAGES", " ${KERNEL_PACKAGE_NAME}-devicetree")
}
normalize_dtb () {
--
2.6.2
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