I agree, the name "kernel-headers" may not be the most fortunate, "linux-headers" is probably more fitting. The recipe installs the files in a similar fashion that is done by
apt-get install linux-headers-$(uname -r) Typical contents can be viewed for example here: https://www.archlinux.org/packages/core/i686/linux-headers/ These files are needed to allow building of kernel drivers against the running Linux kernel. In a way, it is a subset of kernel-devsrc, but including ".config" file used for the actual running kernel. Having these files installed, it is possible to compile additional kernel drivers that are not part of the kernel-devsrc . VirtualBox compiles some of their own drivers this way, others as well. There are many other scenarios where you may want to add a new kernel driver to an already installed Linux kernel. Juro > -----Original Message----- > From: Mark Hatle [mailto:mark.ha...@windriver.com] > Sent: Tuesday, August 4, 2015 9:20 AM > To: Bystricky, Juro; openembedded-core@lists.openembedded.org; > jurobystri...@hotmail.com > Cc: Purdie, Richard > Subject: Re: [OE-core] [PATCH 0/2] Support for VirtualBox guest additions > > On 8/3/15 3:35 PM, Juro Bystricky wrote: > > In order to support VirtualBox guest additions, kernel headers need to > > be present in the VM. I am aware we already have two packages/recipes > > that are somewhat similar (kernel-devsrc.bb, linux-libc-headers), but none > of them is suitable for this purpose. > > Besides the kernel headers, some additional files (scripts, Makefiles, > > .config, etc) are also required. > > linux-libc-headers is only for building applications. kernel-devsrc is for > building modules on the target. > > What do these specific modules need that are not present in kernel-devsrc? > (I really don't want 'yet another' confusing package added to the system.) > > > The new recipe "kernel-headers.bb" can in principle be used by other > images as well. > > It is not limited to the Build Appliance and hence is not a part of > > the Build Appliance recipe. > > I think kernel-headers is a bad name for a package. It could be confusing. > > --Mark > > > Juro Bystricky (2): > > kernel-headers: linux kernel headers > > build-appliance-image: support for VirtualBox guest addtions > > > > .../README_vbox_guest_additions.txt | 78 > ++++++++++++++++++++++ > > .../images/build-appliance-image_12.0.1.bb | 4 +- > > meta/recipes-kernel/linux/kernel-headers.bb | 66 > ++++++++++++++++++ > > 3 files changed, 147 insertions(+), 1 deletion(-) create mode 100644 > > meta/recipes-core/images/build-appliance- > image/README_vbox_guest_addit > > ions.txt create mode 100644 > > meta/recipes-kernel/linux/kernel-headers.bb > > -- _______________________________________________ Openembedded-core mailing list Openembedded-core@lists.openembedded.org http://lists.openembedded.org/mailman/listinfo/openembedded-core
