[OE-core] [PATCH v9] kernel: Add support for multiple kernel packages
Wold, Saul
saul.wold at intel.com
Fri Nov 10 22:00:35 UTC 2017
On Fri, 2017-11-10 at 15:51 -0600, Haris Okanovic wrote:
> No problem! Thanks for all the good feedback. I think we shook out
> most
> of the gremlins in the last few months.
>
Thanks again for your patience !
> Let me know if you need help with boot loader integration.
>
Funny you should mention that, there is another bug recently opened
about supporting multiple kernels for at least grub* and systemd-boot.
I have some ideas about using the existing bbclasses and extending the
LABELS variable automagically. We also have some plans for make the
bootfs be created in a more generic install fashion, rather then the
additional do_deploy() function, this is an early WIP.
If you have any ideas or work already, we would be happy to use it.
Sau!
> -- Haris
>
>
> On 11/08/2017 04:20 PM, Wold, Saul wrote:
> >
> > Haris,
> >
> > Thanks for your patience on this process. This version works well,
> > now
> > I have the extra work of getting these kernel known to systemd-
> > boot!
> >
> > Acked-by below!
> >
> > Sau!
> >
> > On Tue, 2017-11-07 at 12:40 -0600, Haris Okanovic wrote:
> > > Some distros may want to provide alternate kernel "flavors" via
> > > feeds
> > > or
> > > within bootable images. For example, readily available builds
> > > which
> > > provide certain diagnostic features can enable developers and
> > > testers
> > > to
> > > more quickly resolve issues by avoiding lengthy kernel builds.
> > >
> > > This change allows for building multiple flavors of the kernel
> > > and
> > > module packages by templatizing kernel package names via a new
> > > KERNEL_PACKAGE_NAME variable in kernel.bbclass. It defaults to
> > > the
> > > old
> > > name of "kernel", but can be overridden by certain recipes
> > > providing
> > > alternate kernel flavors.
> > >
> > > To maintain compatibility, recipes providing alternate kernel
> > > flavors
> > > cannot be the "preferred provider" for virtual/kernel. This is
> > > because
> > > OE puts the preferred provider's build and source at
> > > "tmp-glibc/work-shared/$MACHINE/kernel-build-artifacts/" and
> > > "tmp-glibc/work-shared/$MACHINE/kernel-source/" instead of
> > > "tmp-glibc/work/*/$PN/" like other recipes. Therefore, recipes
> > > using
> > > the
> > > default KERNEL_PACKAGE_NAME="kernel" follows the old semantics --
> > > build
> > > in the old location and may be preferred provider -- while
> > > recipes
> > > using
> > > all other KERNEL_PACKAGE_NAME's build from the normal WORKDIR and
> > > don't
> > > provide "virtual/kernel".
> > >
> > > Testing:
> > > 1. Add `KERNEL_PACKAGE_NAME_pn-linux-yocto-tiny = "tiny-linux"`
> > > to local.conf so that linux-yocto-tiny may build alongside
> > > the main kernel (linux-yocto).
> > > 2. `bitbake linux-yocto linux-yocto-tiny` to build both kernel
> > > flavors.
> > > 3. Verified image and modules IPKs exist for both:
> > > tmp-glibc/deploy/ipk/qemux86/kernel-* for linux-yocto
> > > tmp-glibc/deploy/ipk/qemux86/tiny-linux* for linux-yocto-
> > > tiny
> > > 4. Verified linux-yocto is the "preferred provider", and was
> > > built
> > > in
> > > shared directory: tmp-glibc/work-shared/qemux86/kernel-*
> > > 5. Add `CORE_IMAGE_BASE_INSTALL_append_pn-core-image-base =
> > > "tiny-
> > > linux"`
> > > to local.conf to install both kernel flavors in core-image-
> > > base.
> > > 6. `bitbake core-image-base` to build an image.
> > > 7. Verified image contains two bzImage's under /boot/, with
> > > "yocto-standard" (linux-yocto recipe) selected to boot via
> > > symlink.
> > >
> > > Discussion threads:
> > > https://urldefense.proofpoint.com/v2/url?u=http-3A__lists.openemb
> > > edded.org_pipermail_openembedded-2Dcore_2015-
> > > 2DDecemb&d=DwIGaQ&c=I_0YwoKy7z5LMTVdyO6YCiE2uzI1jjZZuIPelcSjixA&r
> > > =8Bziuw3IaCGjyrSAphuGwHmVdHcVwza-srUYwL9U_Ms&m=Po_g6d_nUSqHTshbn-
> > > ZaBXenlH_4CQklz7Csmi7u70A&s=cJkppECRP9FwMwrmn-
> > > tbJfRpffqbPbeRXS1uCu5JsB0&e=
> > > er/thread.html#114122
> > > https://urldefense.proofpoint.com/v2/url?u=http-3A__lists.openemb
> > > edded.org_pipermail_openembedded-2Dcore_2017-
> > > 2DJuly_t&d=DwIGaQ&c=I_0YwoKy7z5LMTVdyO6YCiE2uzI1jjZZuIPelcSjixA&r
> > > =8Bziuw3IaCGjyrSAphuGwHmVdHcVwza-srUYwL9U_Ms&m=Po_g6d_nUSqHTshbn-
> > > ZaBXenlH_4CQklz7Csmi7u70A&s=B73w8-
> > > RIOKqgiEjZMC2ra49Q1594cWVJp9c6Yx6u34w&e=
> > > hread.html#139130
> > >
> > > [YOCTO #11363]
> > >
> > > Signed-off-by: Ioan-Adrian Ratiu <adrian.ratiu at ni.com>
> > > Signed-off-by: Gratian Crisan <gratian.crisan at ni.com>
> > > Signed-off-by: Haris Okanovic <haris.okanovic at ni.com>
> > > Coauthored-by: Gratian Crisan <gratian.crisan at ni.com>
> > > Coauthored-by: Haris Okanovic <haris.okanovic at ni.com>
> > > Coauthored-by: Josh Hernstrom <josh.hernstrom at ni.com>
> >
> > Acked-by: Saul Wold <sgw at linux.intel.com>
> >
> > Sau!
> >
> > > ---
> > > [PATCH v2] Change STAGING_KERNEL_DIR and STAGING_KERNEL_BUILDDIR
> > > to
> > > the
> > > "work" directory in alternate kernel builds, instead of "work-
> > > shared",
> > > so
> > > that the two builds don't clobber each other.
> > >
> > > [PATCH v3] An updated version of this change rebased onto the
> > > current
> > > OE-core master. Changes:
> > > - Remove PREFERRED_PROVIDER check in linux-yocto.inc in
> > > alternate
> > > kernel builds, since alternate kernels aren't the
> > > PREFERRED_PROVIDER for virtual/kernel by definition.
> > > - Remove "virtual/kernel" from PROVIDES in alternate kernel
> > > builds.
> > >
> > > [PATCH v4] Another rebase onto master; no functional change.
> > > Improved description and testing steps.
> > >
> > > [PATCH v5]
> > > - Warn when PN == KERNEL_PACKAGE_NAME (bug # 11905)
> > > - Add KERNEL_DEPLOYSUBDIR to avoid DEPLOYDIR collisions
> > >
> > > [PATCH v6] Add KERNEL_PACKAGE_NAME to kernel-module-split.bbclass
> > > for
> > > module recipes; fixes lttng-modules build.
> > >
> > > [PATCH v7] Remove second definition of KERNEL_PACKAGE_NAME from
> > > kernel-module-split.bbclass; apply a default in two places where
> > > KERNEL_PACKAGE_NAME is referenced.
> > >
> > > [PATCH v8] Rebase onto current master and more fixups.
> > > - kernel-devicetree.bbclass: Fixup package names
> > > - depmodwrapper-cross: don't error when called from alt kernel
> > > recipes
> > > - kernel.bbclass: Don't install /boot/image symlink in alt
> > > recipes
> > >
> > > [PATCH v9]
> > > - Add feature tracking tag
> > > - Update testing section to define vars in local.conf
> > > - Add KERNEL_PACKAGE_NAME check to *-rt recipes
> > >
> > > https://urldefense.proofpoint.com/v2/url?u=https-3A__github.com_h
> > > arisokanovic_openembedded-
> > > 2Dcore_tree_dev_hokanovi_&d=DwIGaQ&c=I_0YwoKy7z5LMTVdyO6YCiE2uzI1
> > > jjZZuIPelcSjixA&r=8Bziuw3IaCGjyrSAphuGwHmVdHcVwza-
> > > srUYwL9U_Ms&m=Po_g6d_nUSqHTshbn-
> > > ZaBXenlH_4CQklz7Csmi7u70A&s=g1DTbKMM_NmbTwVK6ABKrg7v5Qst-
> > > DAX8wovpBEZiQQ&e=
> > > multi-kernel-packages-v9
> > > ---
> > > meta/classes/kernel-devicetree.bbclass | 8 +-
> > > meta/classes/kernel-module-split.bbclass | 9 +-
> > > meta/classes/kernel.bbclass | 114
> > > +++++++++++++--------
> > > meta/conf/documentation.conf | 1 +
> > > .../recipes-kernel/kmod/depmodwrapper-cross_1.0.bb | 14 +--
> > > meta/recipes-kernel/linux/linux-yocto-rt_4.10.bb | 2 +-
> > > meta/recipes-kernel/linux/linux-yocto-rt_4.12.bb | 2 +-
> > > meta/recipes-kernel/linux/linux-yocto-rt_4.4.bb | 2 +-
> > > meta/recipes-kernel/linux/linux-yocto-rt_4.9.bb | 2 +-
> > > meta/recipes-kernel/linux/linux-yocto.inc | 2 +-
> > > 10 files changed, 94 insertions(+), 62 deletions(-)
> > >
> > > diff --git a/meta/classes/kernel-devicetree.bbclass
> > > b/meta/classes/kernel-devicetree.bbclass
> > > index 6e08be4b70..4f80cc62eb 100644
> > > --- a/meta/classes/kernel-devicetree.bbclass
> > > +++ b/meta/classes/kernel-devicetree.bbclass
> > > @@ -1,10 +1,10 @@
> > > # Support for device tree generation
> > > PACKAGES_append = " \
> > > - kernel-devicetree \
> > > - ${@['kernel-image-zimage-bundle',
> > > ''][d.getVar('KERNEL_DEVICETREE_BUNDLE') != '1']} \
> > > + ${KERNEL_PACKAGE_NAME}-devicetree \
> > > + ${@[d.getVar('KERNEL_PACKAGE_NAME') + '-image-zimage-
> > > bundle',
> > > ''][d.getVar('KERNEL_DEVICETREE_BUNDLE') != '1']} \
> > > "
> > > -FILES_kernel-devicetree = "/${KERNEL_IMAGEDEST}/*.dtb
> > > /${KERNEL_IMAGEDEST}/*.dtbo"
> > > -FILES_kernel-image-zimage-bundle = "/${KERNEL_IMAGEDEST}/zImage-
> > > *.dtb.bin"
> > > +FILES_${KERNEL_PACKAGE_NAME}-devicetree =
> > > "/${KERNEL_IMAGEDEST}/*.dtb /${KERNEL_IMAGEDEST}/*.dtbo"
> > > +FILES_${KERNEL_PACKAGE_NAME}-image-zimage-bundle =
> > > "/${KERNEL_IMAGEDEST}/zImage-*.dtb.bin"
> > >
> > > # Generate kernel+devicetree bundle
> > > KERNEL_DEVICETREE_BUNDLE ?= "0"
> > > diff --git a/meta/classes/kernel-module-split.bbclass
> > > b/meta/classes/kernel-module-split.bbclass
> > > index 1035525dac..73c7f18c78 100644
> > > --- a/meta/classes/kernel-module-split.bbclass
> > > +++ b/meta/classes/kernel-module-split.bbclass
> > > @@ -30,7 +30,7 @@ do_install_append() {
> > >
> > > PACKAGESPLITFUNCS_prepend = "split_kernel_module_packages "
> > >
> > > -KERNEL_MODULES_META_PACKAGE ?= "kernel-modules"
> > > +KERNEL_MODULES_META_PACKAGE ?= "${@
> > > d.getVar("KERNEL_PACKAGE_NAME",
> > > True) or "kernel" }-modules"
> > >
> > > KERNEL_MODULE_PACKAGE_PREFIX ?= ""
> > > KERNEL_MODULE_PACKAGE_SUFFIX ?= "-${KERNEL_VERSION}"
> > > @@ -129,16 +129,19 @@ python split_kernel_module_packages () {
> > > postfix = format.split('%s')[1]
> > > d.setVar('RPROVIDES_' + pkg, pkg.replace(postfix,
> > > ''))
> > >
> > > + kernel_package_name = d.getVar("KERNEL_PACKAGE_NAME", True)
> > > or
> > > "kernel"
> > > + kernel_version = d.getVar("KERNEL_VERSION", True)
> > > +
> > > module_regex = '^(.*)\.k?o$'
> > >
> > > module_pattern_prefix =
> > > d.getVar('KERNEL_MODULE_PACKAGE_PREFIX')
> > > module_pattern_suffix =
> > > d.getVar('KERNEL_MODULE_PACKAGE_SUFFIX')
> > > - module_pattern = module_pattern_prefix + 'kernel-module-%s'
> > > +
> > > module_pattern_suffix
> > > + module_pattern = module_pattern_prefix + kernel_package_name
> > > +
> > > '-module-%s' + module_pattern_suffix
> > >
> > > postinst = d.getVar('pkg_postinst_modules')
> > > postrm = d.getVar('pkg_postrm_modules')
> > >
> > > - modules = do_split_packages(d,
> > > root='${nonarch_base_libdir}/modules', file_regex=module_regex,
> > > output_pattern=module_pattern, description='%s kernel module',
> > > postinst=postinst, postrm=postrm, recursive=True,
> > > hook=frob_metadata,
> > > extra_depends='kernel-%s' % (d.getVar("KERNEL_VERSION")))
> > > + modules = do_split_packages(d,
> > > root='${nonarch_base_libdir}/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')
> > > d.appendVar('RDEPENDS_' + metapkg, ' '+'
> > > '.join(modules))
> > > diff --git a/meta/classes/kernel.bbclass
> > > b/meta/classes/kernel.bbclass
> > > index 756707a3c2..48b718d777 100644
> > > --- a/meta/classes/kernel.bbclass
> > > +++ b/meta/classes/kernel.bbclass
> > > @@ -1,6 +1,9 @@
> > > inherit linux-kernel-base kernel-module-split
> > >
> > > -PROVIDES += "virtual/kernel"
> > > +KERNEL_PACKAGE_NAME ??= "kernel"
> > > +KERNEL_DEPLOYSUBDIR ??= "${@ "" if
> > > (d.getVar("KERNEL_PACKAGE_NAME",
> > > True) == "kernel") else d.getVar("KERNEL_PACKAGE_NAME", True) }"
> > > +
> > > +PROVIDES += "${@ "virtual/kernel" if
> > > (d.getVar("KERNEL_PACKAGE_NAME", True) == "kernel") else "" }"
> > > DEPENDS += "virtual/${TARGET_PREFIX}binutils
> > > virtual/${TARGET_PREFIX}gcc kmod-native bc-native lzop-native"
> > > PACKAGE_WRITE_DEPS += "depmodwrapper-cross"
> > >
> > > @@ -34,11 +37,32 @@ KERNEL_VERSION_PKG_NAME = "${@legitimize_pack
> > > age_
> > > name(d.getVar('KERNEL_VERSION')
> > > KERNEL_VERSION_PKG_NAME[vardepvalue] = "${LINUX_VERSION}"
> > >
> > > python __anonymous () {
> > > + pn = d.getVar("PN", True)
> > > + kpn = d.getVar("KERNEL_PACKAGE_NAME", True)
> > > +
> > > + # XXX Remove this after bug 11905 is resolved
> > > + # FILES_${KERNEL_PACKAGE_NAME}-dev doesn't expand correctly
> > > + if kpn == pn:
> > > + bb.warn("Some packages (E.g. *-dev) might be missing due
> > > to
> > > "
> > > + "bug 11905 (variable KERNEL_PACKAGE_NAME ==
> > > PN)")
> > > +
> > > + # The default kernel recipe builds in a shared location
> > > defined
> > > by
> > > + # bitbake/distro confs: STAGING_KERNEL_DIR and
> > > STAGING_KERNEL_BUILDDIR.
> > > + # Set these variables to directories under ${WORKDIR} in
> > > alternate
> > > + # kernel recipes (I.e. where KERNEL_PACKAGE_NAME != kernel)
> > > so
> > > that they
> > > + # may build in parallel with the default kernel without
> > > clobbering.
> > > + if kpn != "kernel":
> > > + workdir = d.getVar("WORKDIR", True)
> > > + sourceDir = os.path.join(workdir, 'kernel-source')
> > > + artifactsDir = os.path.join(workdir, 'kernel-build-
> > > artifacts')
> > > + d.setVar("STAGING_KERNEL_DIR", sourceDir)
> > > + d.setVar("STAGING_KERNEL_BUILDDIR", artifactsDir)
> > >
> > > # Merge KERNEL_IMAGETYPE and KERNEL_ALT_IMAGETYPE into
> > > KERNEL_IMAGETYPES
> > > type = d.getVar('KERNEL_IMAGETYPE') or ""
> > > alttype = d.getVar('KERNEL_ALT_IMAGETYPE') or ""
> > > types = d.getVar('KERNEL_IMAGETYPES') or ""
> > > + kname = d.getVar('KERNEL_PACKAGE_NAME', True) or "kernel"
> > > if type not in types.split():
> > > types = (type + ' ' + types).strip()
> > > if alttype not in types.split():
> > > @@ -55,15 +79,15 @@ python __anonymous () {
> > > typelower = type.lower()
> > > imagedest = d.getVar('KERNEL_IMAGEDEST')
> > >
> > > - d.appendVar('PACKAGES', ' ' + 'kernel-image-' +
> > > typelower)
> > > + d.appendVar('PACKAGES', ' %s-image-%s' % (kname,
> > > typelower))
> > >
> > > - d.setVar('FILES_kernel-image-' + typelower, '/' +
> > > imagedest
> > > + '/' + type + '-${KERNEL_VERSION_NAME}' + ' /' + imagedest + '/'
> > > +
> > > type)
> > > + d.setVar('FILES_' + kname + '-image-' + typelower, '/' +
> > > imagedest + '/' + type + '-${KERNEL_VERSION_NAME}' + ' /' +
> > > imagedest
> > > + '/' + type)
> > >
> > > - d.appendVar('RDEPENDS_kernel-image', ' ' + 'kernel-
> > > image-' +
> > > typelower)
> > > + d.appendVar('RDEPENDS_%s-image' % kname, ' %s-image-%s'
> > > %
> > > (kname, typelower))
> > >
> > > - d.setVar('PKG_kernel-image-' + typelower, 'kernel-image-
> > > ' +
> > > typelower + '-${KERNEL_VERSION_PKG_NAME}')
> > > + d.setVar('PKG_%s-image-%s' % (kname,typelower), '%s-
> > > image-
> > > %s-${KERNEL_VERSION_PKG_NAME}' % (kname, typelower))
> > >
> > > - d.setVar('ALLOW_EMPTY_kernel-image-' + typelower, '1')
> > > + d.setVar('ALLOW_EMPTY_%s-image-%s' % (kname, typelower),
> > > '1')
> > >
> > > image = d.getVar('INITRAMFS_IMAGE')
> > > if image:
> > > @@ -121,9 +145,9 @@ base_do_unpack_append () {
> > >
> > > inherit kernel-arch deploy
> > >
> > > -PACKAGES_DYNAMIC += "^kernel-module-.*"
> > > -PACKAGES_DYNAMIC += "^kernel-image-.*"
> > > -PACKAGES_DYNAMIC += "^kernel-firmware-.*"
> > > +PACKAGES_DYNAMIC += "^${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}"
> > > @@ -339,7 +363,9 @@ kernel_do_install() {
> > > install -d ${D}/boot
> > > for type in ${KERNEL_IMAGETYPES} ; do
> > > install -m 0644 ${KERNEL_OUTPUT_DIR}/${type}
> > > ${D}/${KERNEL_IMAGEDEST}/${type}-${KERNEL_VERSION}
> > > - ln -sf ${type}-${KERNEL_VERSION}
> > > ${D}/${KERNEL_IMAGEDEST}/${type}
> > > + if [ "${KERNEL_PACKAGE_NAME}" == "kernel" ];
> > > then
> > > + ln -sf ${type}-${KERNEL_VERSION}
> > > ${D}/${KERNEL_IMAGEDEST}/${type}
> > > + fi
> > > done
> > > install -m 0644 System.map ${D}/boot/System.map-
> > > ${KERNEL_VERSION}
> > > install -m 0644 .config ${D}/boot/config-
> > > ${KERNEL_VERSION}
> > > @@ -393,9 +419,9 @@ 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-${KERNEL_VERSION}
> > > }
> > >
> > > PACKAGEFUNCS += "emit_depmod_pkgdata"
> > > @@ -410,7 +436,7 @@ do_shared_workdir () {
> > > # Store the kernel version in sysroots for module-
> > > base.bbclass
> > > #
> > >
> > > - echo "${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}
> > > @@ -508,28 +534,28 @@ EXPORT_FUNCTIONS do_compile do_install
> > > do_configure
> > >
> > > # kernel-base becomes kernel-${KERNEL_VERSION}
> > > # kernel-image becomes kernel-image-${KERNEL_VERSION}
> > > -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 =
> > > "${nonarch_base_libdir}/modules/${KERNEL_VERSION}/modules.order
> > > ${nonarch_base_libdir}/modules/${KERNEL_VERSION}/modules.builtin"
> > > -FILES_kernel-image = ""
> > > -FILES_kernel-dev = "/boot/System.map* /boot/Module.symvers*
> > > /boot/config* ${KERNEL_SRC_PATH}
> > > ${nonarch_base_libdir}/modules/${KERNEL_VERSION}/build"
> > > -FILES_kernel-vmlinux = "/boot/vmlinux-${KERNEL_VERSION_NAME}"
> > > -FILES_kernel-modules = ""
> > > -RDEPENDS_kernel = "kernel-base"
> > > +FILES_${KERNEL_PACKAGE_NAME}-base =
> > > "${nonarch_base_libdir}/modules/${KERNEL_VERSION}/modules.order
> > > ${nonarch_base_libdir}/modules/${KERNEL_VERSION}/modules.builtin"
> > > +FILES_${KERNEL_PACKAGE_NAME}-image = ""
> > > +FILES_${KERNEL_PACKAGE_NAME}-dev = "/boot/System.map*
> > > /boot/Module.symvers* /boot/config* ${KERNEL_SRC_PATH}
> > > ${nonarch_base_libdir}/modules/${KERNEL_VERSION}/build"
> > > +FILES_${KERNEL_PACKAGE_NAME}-vmlinux = "/boot/vmlinux-
> > > ${KERNEL_VERSION_NAME}"
> > > +FILES_${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-${@legitimize_package_name('${K
> > > ERNE
> > > L_VERSION}')}"
> > > -RDEPENDS_kernel-image += "${@base_conditional('KERNEL_IMAGETYPE'
> > > ,
> > > 'vmlinux', 'kernel-vmlinux', '', d)}"
> > > -PKG_kernel-base = "kernel-${@legitimize_package_name('${KERNEL_V
> > > ERSI
> > > ON}')}"
> > > -RPROVIDES_kernel-base += "kernel-${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('K
> > > ERNE
> > > L_IMAGETYPE', 'vmlinux', '${KERNEL_PACKAGE_NAME}-vmlinux', '',
> > > d)}"
> > > +PKG_${KERNEL_PACKAGE_NAME}-base = "${KERNEL_PACKAGE_NAME}-${@leg
> > > itim
> > > ize_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
> > > @@ -543,7 +569,7 @@ pkg_postinst_kernel-base () {
> > > PACKAGESPLITFUNCS_prepend = "split_kernel_packages "
> > >
> > > python split_kernel_packages () {
> > > - do_split_packages(d, root='${nonarch_base_libdir}/firmware',
> > > file_regex='^(.*)\.(bin|fw|cis|csp|dsp)$',
> > > output_pattern='kernel-
> > > firmware-%s', description='Firmware for %s', recursive=True,
> > > extra_depends='')
> > > + do_split_packages(d, root='${nonarch_base_libdir}/firmware',
> > > file_regex='^(.*)\.(bin|fw|cis|csp|dsp)$',
> > > output_pattern='${KERNEL_PACKAGE_NAME}-firmware-%s',
> > > description='Firmware for %s', recursive=True, extra_depends='')
> > > }
> > >
> > > # Many scripts want to look in arch/$arch/boot for the bootable
> > > @@ -626,21 +652,27 @@ MODULE_TARBALL_SYMLINK_NAME ?= "modules-
> > > ${MACHINE}.tgz"
> > > MODULE_TARBALL_DEPLOY ?= "1"
> > >
> > > kernel_do_deploy() {
> > > + deployDir="${DEPLOYDIR}"
> > > + if [ -n "${KERNEL_DEPLOYSUBDIR}" ]; then
> > > + deployDir="${DEPLOYDIR}/${KERNEL_DEPLOYSUBDIR}"
> > > + mkdir "$deployDir"
> > > + fi
> > > +
> > > for type in ${KERNEL_IMAGETYPES} ; do
> > > base_name=${type}-${KERNEL_IMAGE_BASE_NAME}
> > > - install -m 0644 ${KERNEL_OUTPUT_DIR}/${type}
> > > ${DEPLOYDIR}/${base_name}.bin
> > > + install -m 0644 ${KERNEL_OUTPUT_DIR}/${type}
> > > $deployDir/${base_name}.bin
> > > done
> > > if [ ${MODULE_TARBALL_DEPLOY} = "1" ] && (grep -q -i -e
> > > '^CONFIG_MODULES=y$' .config); then
> > > mkdir -p ${D}/lib
> > > - tar -cvzf
> > > ${DEPLOYDIR}/${MODULE_TARBALL_BASE_NAME}
> > > -C ${D} lib
> > > - ln -sf ${MODULE_TARBALL_BASE_NAME}
> > > ${DEPLOYDIR}/${MODULE_TARBALL_SYMLINK_NAME}
> > > + tar -cvzf $deployDir/${MODULE_TARBALL_BASE_NAME}
> > > -C
> > > ${D} lib
> > > + ln -sf ${MODULE_TARBALL_BASE_NAME}
> > > $deployDir/${MODULE_TARBALL_SYMLINK_NAME}
> > > fi
> > >
> > > for type in ${KERNEL_IMAGETYPES} ; do
> > > base_name=${type}-${KERNEL_IMAGE_BASE_NAME}
> > > symlink_name=${type}-
> > > ${KERNEL_IMAGE_SYMLINK_NAME}
> > > - ln -sf ${base_name}.bin
> > > ${DEPLOYDIR}/${symlink_name}.bin
> > > - ln -sf ${base_name}.bin ${DEPLOYDIR}/${type}
> > > + ln -sf ${base_name}.bin
> > > $deployDir/${symlink_name}.bin
> > > + ln -sf ${base_name}.bin $deployDir/${type}
> > > done
> > >
> > > cd ${B}
> > > @@ -650,8 +682,8 @@ kernel_do_deploy() {
> > > echo "Copying deploy ${type} kernel-
> > > initramfs image and setting up links..."
> > > initramfs_base_name=${type}-
> > > ${INITRAMFS_BASE_NAME}
> > > initramfs_symlink_name=${type}-
> > > initramfs-
> > > ${MACHINE}
> > > - install -m 0644
> > > ${KERNEL_OUTPUT_DIR}/${type}.initramfs
> > > ${DEPLOYDIR}/${initramfs_base_name}.bin
> > > - ln -sf ${initramfs_base_name}.bin
> > > ${DEPLOYDIR}/${initramfs_symlink_name}.bin
> > > + install -m 0644
> > > ${KERNEL_OUTPUT_DIR}/${type}.initramfs
> > > $deployDir/${initramfs_base_name}.bin
> > > + ln -sf ${initramfs_base_name}.bin
> > > $deployDir/${initramfs_symlink_name}.bin
> > > fi
> > > done
> > > }
> > > diff --git a/meta/conf/documentation.conf
> > > b/meta/conf/documentation.conf
> > > index a55e2836b5..2c88504fb9 100644
> > > --- a/meta/conf/documentation.conf
> > > +++ b/meta/conf/documentation.conf
> > > @@ -247,6 +247,7 @@ KERNEL_IMAGETYPE[doc] = "The type of kernel
> > > to
> > > build for a device, usually set b
> > > KERNEL_IMAGETYPES[doc] = "The list of types of kernel to build
> > > for a
> > > device, usually set by the machine configuration files and
> > > defaults
> > > to KERNEL_IMAGETYPE."
> > > 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/kmod/depmodwrapper-cross_1.0.bb
> > > b/meta/recipes-kernel/kmod/depmodwrapper-cross_1.0.bb
> > > index 44d013f29d..2eec921728 100644
> > > --- a/meta/recipes-kernel/kmod/depmodwrapper-cross_1.0.bb
> > > +++ b/meta/recipes-kernel/kmod/depmodwrapper-cross_1.0.bb
> > > @@ -23,17 +23,13 @@ if [ "\$1" != "-a" -o "\$2" != "-b" ]; then
> > > echo "Usage: depmodwrapper -a -b rootfs KERNEL_VERSION" >&2
> > > exit 1
> > > fi
> > > -if [ ! -r ${PKGDATA_DIR}/kernel-depmod/kernel-abiversion ]; then
> > > - echo "Unable to read: ${PKGDATA_DIR}/kernel-depmod/kernel-
> > > abiversion" >&2
> > > -else
> > > - kernelabi=\$(cat ${PKGDATA_DIR}/kernel-depmod/kernel-
> > > abiversion)
> > > - if [ "\$kernelabi" != "\$4" ]; then
> > > - echo "Error: Kernel version \$4 does not match kernel-
> > > abiversion (\$kernelabi)" >&2
> > > - exit 1
> > > - fi
> > > +
> > > +kernelabi=""
> > > +if [ -r "${PKGDATA_DIR}/kernel-depmod/kernel-abiversion" ]; then
> > > + kernelabi=\$(cat "${PKGDATA_DIR}/kernel-depmod/kernel-
> > > abiversion")
> > > fi
> > >
> > > -if [ ! -r ${PKGDATA_DIR}/kernel-depmod/System.map-\$4 ]; then
> > > +if [ ! -r ${PKGDATA_DIR}/kernel-depmod/System.map-\$4 ] || [
> > > "\$kernelabi" != "\$4" ]; then
> > > echo "Unable to read: ${PKGDATA_DIR}/kernel-
> > > depmod/System.map-
> > > \$4" >&2
> > > exec env depmod "\$1" "\$2" "\$3" "\$4"
> > > else
> > > diff --git a/meta/recipes-kernel/linux/linux-yocto-rt_4.10.bb
> > > b/meta/recipes-kernel/linux/linux-yocto-rt_4.10.bb
> > > index f93d9530eb..894e2ffbf6 100644
> > > --- a/meta/recipes-kernel/linux/linux-yocto-rt_4.10.bb
> > > +++ b/meta/recipes-kernel/linux/linux-yocto-rt_4.10.bb
> > > @@ -7,7 +7,7 @@ require recipes-kernel/linux/linux-yocto.inc
> > > # to build multiple virtual/kernel providers, e.g. as
> > > dependency of
> > > # core-image-rt-sdk, core-image-rt.
> > > python () {
> > > - if d.getVar("PREFERRED_PROVIDER_virtual/kernel") != "linux-
> > > yocto-rt":
> > > + if d.getVar("KERNEL_PACKAGE_NAME", True) == "kernel" and
> > > d.getVar("PREFERRED_PROVIDER_virtual/kernel") != "linux-yocto-
> > > rt":
> > > raise bb.parse.SkipPackage("Set
> > > PREFERRED_PROVIDER_virtual/kernel to linux-yocto-rt to enable
> > > it")
> > > }
> > >
> > > diff --git a/meta/recipes-kernel/linux/linux-yocto-rt_4.12.bb
> > > b/meta/recipes-kernel/linux/linux-yocto-rt_4.12.bb
> > > index c49a9340f8..be4d163ff1 100644
> > > --- a/meta/recipes-kernel/linux/linux-yocto-rt_4.12.bb
> > > +++ b/meta/recipes-kernel/linux/linux-yocto-rt_4.12.bb
> > > @@ -7,7 +7,7 @@ require recipes-kernel/linux/linux-yocto.inc
> > > # to build multiple virtual/kernel providers, e.g. as
> > > dependency of
> > > # core-image-rt-sdk, core-image-rt.
> > > python () {
> > > - if d.getVar("PREFERRED_PROVIDER_virtual/kernel") != "linux-
> > > yocto-rt":
> > > + if d.getVar("KERNEL_PACKAGE_NAME", True) == "kernel" and
> > > d.getVar("PREFERRED_PROVIDER_virtual/kernel") != "linux-yocto-
> > > rt":
> > > raise bb.parse.SkipPackage("Set
> > > PREFERRED_PROVIDER_virtual/kernel to linux-yocto-rt to enable
> > > it")
> > > }
> > >
> > > diff --git a/meta/recipes-kernel/linux/linux-yocto-rt_4.4.bb
> > > b/meta/recipes-kernel/linux/linux-yocto-rt_4.4.bb
> > > index 25d88833a9..e489bbb9f2 100644
> > > --- a/meta/recipes-kernel/linux/linux-yocto-rt_4.4.bb
> > > +++ b/meta/recipes-kernel/linux/linux-yocto-rt_4.4.bb
> > > @@ -7,7 +7,7 @@ require recipes-kernel/linux/linux-yocto.inc
> > > # to build multiple virtual/kernel providers, e.g. as
> > > dependency of
> > > # core-image-rt-sdk, core-image-rt.
> > > python () {
> > > - if d.getVar("PREFERRED_PROVIDER_virtual/kernel") != "linux-
> > > yocto-rt":
> > > + if d.getVar("KERNEL_PACKAGE_NAME", True) == "kernel" and
> > > d.getVar("PREFERRED_PROVIDER_virtual/kernel") != "linux-yocto-
> > > rt":
> > > raise bb.parse.SkipPackage("Set
> > > PREFERRED_PROVIDER_virtual/kernel to linux-yocto-rt to enable
> > > it")
> > > }
> > >
> > > diff --git a/meta/recipes-kernel/linux/linux-yocto-rt_4.9.bb
> > > b/meta/recipes-kernel/linux/linux-yocto-rt_4.9.bb
> > > index 6734dc0d05..8212b1445c 100644
> > > --- a/meta/recipes-kernel/linux/linux-yocto-rt_4.9.bb
> > > +++ b/meta/recipes-kernel/linux/linux-yocto-rt_4.9.bb
> > > @@ -7,7 +7,7 @@ require recipes-kernel/linux/linux-yocto.inc
> > > # to build multiple virtual/kernel providers, e.g. as
> > > dependency of
> > > # core-image-rt-sdk, core-image-rt.
> > > python () {
> > > - if d.getVar("PREFERRED_PROVIDER_virtual/kernel") != "linux-
> > > yocto-rt":
> > > + if d.getVar("KERNEL_PACKAGE_NAME", True) == "kernel" and
> > > d.getVar("PREFERRED_PROVIDER_virtual/kernel") != "linux-yocto-
> > > rt":
> > > raise bb.parse.SkipPackage("Set
> > > PREFERRED_PROVIDER_virtual/kernel to linux-yocto-rt to enable
> > > it")
> > > }
> > >
> > > diff --git a/meta/recipes-kernel/linux/linux-yocto.inc
> > > b/meta/recipes-kernel/linux/linux-yocto.inc
> > > index 9c1f61be75..8a70eb5018 100644
> > > --- a/meta/recipes-kernel/linux/linux-yocto.inc
> > > +++ b/meta/recipes-kernel/linux/linux-yocto.inc
> > > @@ -12,7 +12,7 @@ INC_PR = "r4"
> > > # PREFERRED_PROVIDER for virtual/kernel. This avoids network
> > > access
> > > required
> > > # by the use of AUTOREV SRCREVs, which are the default for this
> > > recipe.
> > > python () {
> > > - if d.getVar("PREFERRED_PROVIDER_virtual/kernel") !=
> > > d.getVar("PN"):
> > > + if d.getVar("KERNEL_PACKAGE_NAME", True) == "kernel" and
> > > d.getVar("PREFERRED_PROVIDER_virtual/kernel", True) !=
> > > d.getVar("PN",
> > > True):
> > > d.delVar("BB_DONT_CACHE")
> > > raise bb.parse.SkipPackage("Set
> > > PREFERRED_PROVIDER_virtual/kernel to %s to enable it" %
> > > (d.getVar("PN")))
> > > }
> > > --
> > > 2.14.2
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