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Michel Thebeau
4a20f6b23e
Allow recipes to specify sections to be stripped from the kernel output using KERNEL_IMAGE_STRIP_EXTRA_SECTIONS. For example: KERNEL_IMAGE_STRIP_EXTRA_SECTIONS = ".comment .unwanted" The kernel output is stripped in place. Since the toolchain does not give indication when the specified sections are absent, we read the sections first and make this report by issuing a warning to the developer. The toolchain by default strips the image with the -s option (even when -s is not specified): -s --strip-all Remove all symbol and relocation information For example, these sections are always removed: .debug_aranges .debug_info .debug_abbrev .debug_line .debug_frame .debug_str .debug_loc .debug_ranges .symtab .strtab In addition to these, the sections listed in KERNEL_IMAGE_STRIP_EXTRA_SECTIONS will also be removed. Only stripping of vmlinux (elf) is supported at this time. A warning will be given if the image type is not vmlinux. Stripping the image could also be done in the kernel, but that would only work for linux-yocto based kernels, so it's not the route we decided to go. [YOCTO 3515] (From OE-Core rev: 5f6d33b05b4e7883f2728ca812cb5386d1e36989) Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com> Signed-off-by: Michel Thebeau <michel.thebeau@windriver.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Poky
====
Poky is an integration of various components to form a complete prepackaged
build system and development environment. It features support for building
customised embedded device style images. There are reference demo images
featuring a X11/Matchbox/GTK themed UI called Sato. The system supports
cross-architecture application development using QEMU emulation and a
standalone toolchain and SDK with IDE integration.
Additional information on the specifics of hardware that Poky supports
is available in README.hardware. Further hardware support can easily be added
in the form of layers which extend the systems capabilities in a modular way.
As an integration layer Poky consists of several upstream projects such as
BitBake, OpenEmbedded-Core, Yocto documentation and various sources of information
e.g. for the hardware support. Poky is in turn a component of the Yocto Project.
The Yocto Project has extensive documentation about the system including a
reference manual which can be found at:
http://yoctoproject.org/documentation
OpenEmbedded-Core is a layer containing the core metadata for current versions
of OpenEmbedded. It is distro-less (can build a functional image with
DISTRO = "") and contains only emulated machine support.
For information about OpenEmbedded, see the OpenEmbedded website:
http://www.openembedded.org/
Where to Send Patches
=====================
As Poky is an integration repository, patches against the various components
should be sent to their respective upstreams.
bitbake:
bitbake-devel@lists.openembedded.org
meta-yocto:
poky@yoctoproject.org
Most everything else should be sent to the OpenEmbedded Core mailing list. If
in doubt, check the oe-core git repository for the content you intend to modify.
Before sending, be sure the patches apply cleanly to the current oe-core git
repository.
openembedded-core@lists.openembedded.org
Note: The scripts directory should be treated with extra care as it is a mix
of oe-core and poky-specific files.