c93f487dc4
For u-boot test cases (bitbake virtual/bootloader) inheriting the
kernel-fitimage.bbclass is no longer needed. Also setting any variable
which is evaluated by the kernel-fitimage.bbclass but not by
uboot-sign.bbclass is pointless since:
* Commit OE-Core rev: 5e12dc911d0c541f43aa6d0c046fb87e8b7c1f7e
changed the test case from
bitbake virtual/kernel
to
bitbake virtual/bootloader
* Commit OE-Core rev: 259bfa86f384206f0d0a96a5b84887186c5f689e has
finally removed the dependency of uboot-sign.bbclass on the
kernel-fitimage.bbclass completely.
Remove the related lines of code which are now without any effect.
The two test cases test_uboot_fit_image and test_uboot_sign_fit_image
do the exact same test. Both generate a binary equal its file:
/dts-v1/;
/ {
description = "A model description";
#address-cells = <1>;
images {
uboot {
description = "U-Boot image";
data = /incbin/("u-boot-nodtb.bin");
type = "standalone";
os = "u-boot";
arch = "arm";
compression = "none";
load = <0x80080000>;
entry = <0x80080000>;
};
fdt {
description = "U-Boot FDT";
data = /incbin/("u-boot.dtb");
type = "flat_dt";
arch = "arm";
compression = "none";
};
};
configurations {
default = "conf";
conf {
description = "Boot with signed U-Boot FIT";
loadables = "uboot";
fdt = "fdt";
};
};
};
The code diff between the two equal test cases looks like:
@@ -1,8 +1,9 @@
- def test_uboot_fit_image(self):
+ def test_uboot_sign_fit_image(self):
"""
Summary: Check if Uboot FIT image and Image Tree Source
(its) are built and the Image Tree Source has the
- correct fields.
+ correct fields, in the scenario where the Kernel
+ is also creating/signing it's fitImage.
Expected: 1. u-boot-fitImage and u-boot-its can be built
2. The type, load address, entrypoint address and
default values of U-boot image are correct in the
@@ -26,16 +27,15 @@
UBOOT_LOADADDRESS = "0x80080000"
UBOOT_ENTRYPOINT = "0x80080000"
UBOOT_FIT_DESC = "A model description"
-
-# Enable creation of Kernel fitImage
KERNEL_IMAGETYPES += " fitImage "
-KERNEL_CLASSES = " kernel-fitimage"
+KERNEL_CLASSES = " kernel-fitimage "
UBOOT_SIGN_ENABLE = "1"
FIT_GENERATE_KEYS = "1"
UBOOT_SIGN_KEYDIR = "${TOPDIR}/signing-keys"
UBOOT_SIGN_IMG_KEYNAME = "img-oe-selftest"
UBOOT_SIGN_KEYNAME = "cfg-oe-selftest"
FIT_SIGN_INDIVIDUAL = "1"
+UBOOT_MKIMAGE_SIGN_ARGS = "-c 'a smart U-Boot comment'"
"""
self.write_config(config)
Conclusion: The test case test_uboot_sign_fit_image looks redundant.
Contrary to its name, it does not insert any signature nodes into the
its-file and therefore does not test any type of signature.
Code history:
- Commit OE-Core rev: e71e4c617568496ae3bd6bb678f97b4f73cb43d8
introduces both test cases.
- Commit OE-Core rev: 5e12dc911d0c541f43aa6d0c046fb87e8b7c1f7e
changes both test cases like this:
- bitbake("virtual/kernel")
+ bitbake("virtual/bootloader")
It looks like the original implementation of test_uboot_sign_fit_image
was supposed to test the interaction between the kernel-fitimage.bbclass
and uboot-sign.bbclass which does not longer work like that.
When compiling u-boot, the variable that is relevant for creating an its
file with signature nodes is: SPL_SIGN_ENABLE. This is what the test
case test_sign_standalone_uboot_fit_image verifies. Lets just delete the
now obsolete test_uboot_sign_fit_image test case.
(From OE-Core rev: de8bfdff0f997f59a2bd27842a2ffcd365f725f3)
Signed-off-by: Adrian Freihofer <adrian.freihofer@siemens.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Poky
Poky is an integration of various components to form a pre-packaged build system and development environment which is used as a development and validation tool by the Yocto Project. It features support for building customised embedded style device images and custom containers. There are reference demo images ranging from X11/GTK+ to Weston, commandline and more. The system supports cross-architecture application development using QEMU emulation and a standalone toolchain and SDK suitable for 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 BSP layers which extend the systems capabilities in a modular way. Many layers are available and can be found through the layer index.
As an integration layer Poky consists of several upstream projects such as BitBake, OpenEmbedded-Core, Yocto documentation, the 'meta-yocto' layer which has configuration and hardware support components. These components are all part of the Yocto Project and OpenEmbedded ecosystems.
The Yocto Project has extensive documentation about the system including a reference manual which can be found at https://docs.yoctoproject.org/
OpenEmbedded is the build architecture used by Poky and the Yocto project. For information about OpenEmbedded, see the OpenEmbedded website.
Contribution Guidelines
Please refer to our contributor guide here: https://docs.yoctoproject.org/dev/contributor-guide/ for full details on how to submit changes.
Where to Send Patches
As Poky is an integration repository (built using a tool called combo-layer), patches against the various components should be sent to their respective upstreams:
OpenEmbedded-Core (files in meta/, meta-selftest/, meta-skeleton/, scripts/):
- Git repository: https://git.openembedded.org/openembedded-core/
- Mailing list: openembedded-core@lists.openembedded.org
BitBake (files in bitbake/):
- Git repository: https://git.openembedded.org/bitbake/
- Mailing list: bitbake-devel@lists.openembedded.org
Documentation (files in documentation/):
- Git repository: https://git.yoctoproject.org/cgit/cgit.cgi/yocto-docs/
- Mailing list: docs@lists.yoctoproject.org
meta-yocto (files in meta-poky/, meta-yocto-bsp/):
- Git repository: https://git.yoctoproject.org/cgit/cgit.cgi/meta-yocto
- Mailing list: poky@lists.yoctoproject.org
If in doubt, check the openembedded-core git repository for the content you intend to modify as most files are from there unless clearly one of the above categories. Before sending, be sure the patches apply cleanly to the current git repository branch in question.