[OE-core] [PATCH 1/3] kernel: Add kernel headers to kernel-dev package

[Bruce Ashfield]

On 12-06-30 12:25 AM, Darren Hart wrote:
> [YOCTO #1614]
>
> Add the kernel headers to the kernel-dev package. This packages what was
> already built and kept in sysroots for building modules with bitbake.
> Making this available on the target requires removing some additional
> host binaries.
>
> Move the location to /usr/src/kernel
>
> Before use on the target, the user will need to:
>
>      # cd /usr/src/kernel
>      # make scripts
>
> This renders the kernel-misc recipe empty, so remove it.
>
> As we use /usr/src/kernel in several places (and I missed one in the
> previous version), add a KERNEL_SRC_DIR variable and use that throughout
> the class to avoid update errors in the future.
>
> Now that we package the kernel headers, drop the
> kernel_package_preprocess function which removed them from PKGD.
>
> All *-sdk image recipes include dev-pkgs, so the kernel-dev package will
> be installed by default on all such images.

Looks good to me .. hopefully we'll go no further than v3b!

Cheers,

Bruce

>
> Signed-off-by: Darren Hart<dvhart at linux.intel.com>
> CC: Bruce Ashfield<bruce.ashfield at windriver.com>
> CC: Tom Zanussi<tom.zanussi at intel.com>
> CC: Khem Raj<raj.khem at gmail.com>
> ---
>   meta/classes/kernel.bbclass               |   27 ++++++++++++---------------
>   meta/conf/bitbake.conf                    |    2 +-
>   meta/recipes-kernel/linux/linux-yocto.inc |    2 +-
>   3 files changed, 14 insertions(+), 17 deletions(-)
>
> diff --git a/meta/classes/kernel.bbclass b/meta/classes/kernel.bbclass
> index 31e633b..44461bc 100644
> --- a/meta/classes/kernel.bbclass
> +++ b/meta/classes/kernel.bbclass
> @@ -77,6 +77,10 @@ EXTRA_OEMAKE = ""
>
>   KERNEL_ALT_IMAGETYPE ??= ""
>
> +# Define where the kernel headers are installed on the target as well as where
> +# they are staged.
> +KERNEL_SRC_PATH = "/usr/src/kernel"
> +
>   KERNEL_IMAGETYPE_FOR_MAKE = "${@(lambda s: s[:-3] if s[-3:] == ".gz" else s)(d.getVar('KERNEL_IMAGETYPE', True))}"
>
>   kernel_do_compile() {
> @@ -130,7 +134,7 @@ kernel_do_install() {
>   	# Support for external module building - create a minimal copy of the
>   	# kernel source tree.
>   	#
> -	kerneldir=${D}/kernel
> +	kerneldir=${D}${KERNEL_SRC_PATH}
>   	install -d $kerneldir
>
>   	#
> @@ -183,23 +187,18 @@ kernel_do_install() {
>   		cp arch/powerpc/lib/crtsavres.o $kerneldir/arch/powerpc/lib/crtsavres.o
>   	fi
>
> -	# Remove the following binaries which cause strip errors
> +	# Remove the following binaries which cause strip or arch QA errors
>   	# during do_package for cross-compiled platforms
>   	bin_files="arch/powerpc/boot/addnote arch/powerpc/boot/hack-coff \
> -	           arch/powerpc/boot/mktree"
> +	           arch/powerpc/boot/mktree scripts/kconfig/zconf.tab.o \
> +		   scripts/kconfig/conf.o"
>   	for entry in $bin_files; do
>   		rm -f $kerneldir/$entry
>   	done
>   }
>
> -PACKAGE_PREPROCESS_FUNCS += "kernel_package_preprocess"
> -
> -kernel_package_preprocess () {
> -	rm -rf ${PKGD}/kernel
> -}
> -
>   sysroot_stage_all_append() {
> -	sysroot_stage_dir ${D}/kernel ${SYSROOT_DESTDIR}/kernel
> +	sysroot_stage_dir ${D}${KERNEL_SRC_PATH} ${SYSROOT_DESTDIR}${KERNEL_SRC_PATH}
>   }
>
>   kernel_do_configure() {
> @@ -247,13 +246,11 @@ 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-misc"
> +PACKAGES = "kernel kernel-base kernel-vmlinux kernel-image kernel-dev"
>   FILES = ""
>   FILES_kernel-image = "/boot/${KERNEL_IMAGETYPE}*"
> -FILES_kernel-dev = "/boot/System.map* /boot/Module.symvers* /boot/config*"
> +FILES_kernel-dev = "/boot/System.map* /boot/Module.symvers* /boot/config* ${KERNEL_SRC_PATH}"
>   FILES_kernel-vmlinux = "/boot/vmlinux*"
> -# misc is a package to contain files we need in staging
> -FILES_kernel-misc = "/kernel/include/config /kernel/scripts /kernel/drivers/crypto /kernel/drivers/media"
>   RDEPENDS_kernel = "kernel-base"
>   # Allow machines to override this dependency if kernel image files are
>   # not wanted in images as standard
> @@ -469,7 +466,7 @@ python populate_packages_prepend () {
>   	metapkg = "kernel-modules"
>   	d.setVar('ALLOW_EMPTY_' + metapkg, "1")
>   	d.setVar('FILES_' + metapkg, "")
> -	blacklist = [ 'kernel-dev', 'kernel-image', 'kernel-base', 'kernel-vmlinux', 'kernel-misc' ]
> +	blacklist = [ 'kernel-dev', 'kernel-image', 'kernel-base', 'kernel-vmlinux' ]
>   	for l in module_deps.values():
>   		for i in l:
>   			pkg = module_pattern % legitimize_package_name(re.match(module_regex, os.path.basename(i)).group(1))
> diff --git a/meta/conf/bitbake.conf b/meta/conf/bitbake.conf
> index 9377ee6..7e3de09 100644
> --- a/meta/conf/bitbake.conf
> +++ b/meta/conf/bitbake.conf
> @@ -381,7 +381,7 @@ SDKPATHNATIVE = "${SDKPATH}/sysroots/${SDK_SYS}"
>   ##################################################################
>
>   OLDEST_KERNEL = "2.6.16"
> -STAGING_KERNEL_DIR = "${STAGING_DIR_HOST}/kernel"
> +STAGING_KERNEL_DIR = "${STAGING_DIR_HOST}/usr/src/kernel"
>
>   ##################################################################
>   # Specific image creation and rootfs population info.
> diff --git a/meta/recipes-kernel/linux/linux-yocto.inc b/meta/recipes-kernel/linux/linux-yocto.inc
> index 9b46e74..973970d 100644
> --- a/meta/recipes-kernel/linux/linux-yocto.inc
> +++ b/meta/recipes-kernel/linux/linux-yocto.inc
> @@ -4,7 +4,7 @@ LICENSE = "GPLv2"
>
>   LIC_FILES_CHKSUM = "file://COPYING;md5=d7810fab7487fb0aad327b76f1be7cd7"
>
> -INC_PR = "r3"
> +INC_PR = "r4"
>
>   # 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,