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Add kernel-rt 5.10.74 debian packaging. The kernel-rt we are building starts as source code from the Yocto Project kernel found at (https://git.yoctoproject.org/cgit/cgit.cgi/linux-yocto/about/?h=v5.10/standard/preempt-rt/base). To facilitate the creation of a Debian package of this kernel-rt we start by making a copy of the 5.10 Debian Bullseye 'debian' folder taken from (http://snapshot.debian.org/package/linux/5.10.28-1/) and apply customization via the meta-data patches in debian/deb_patches dir. In this way we can review and incorporate changes the Debian community makes to their kernel's 'debian' folder over time. Since there are StarlingX specific patches to the kernel not suitable to send for merging in linux-yocto we apply these here as defined in scope and order in the contained debian/patches/series file. The original Debian's release use a "rt" feature to build extra kernel packages with preempt-rt. This "rt" feature applies many patches on the std kernel and turns it into a rt kernel. Here I don't find a proper way to do this on linux-yocto source. So I disable the rt feature in debian folder and build the kernel-rt source code from linux-yocto in a normal way. Two things are done to make sure this kernel-rt building is fine: - rename the packages' names from linux-xxx to linux-rt-xxx in the debian folder; - add the right config file for kernel-rt to the proper place. Verification: As we are only getting the Debian work bootstrapped there is quite a few restrictions as far as what can be tested. - I have compared it to the kernel-rt 5.10.74 being used with stx centos: - the linux-yocto source code is same; - all the StarlingX specific patches are same; - the .config of Starlingx centos kernel-rt 5.10.74 is taken to Starlingx debian, coexists and overrides the default debian kenrel configs, and only below changes are done for it: - remove some CONFIGs not set by Starlingx centos kernel code intentionally, such as CONFIG_CC_CAN_LINK; - remove some CONFIGs special for Starlingx centos kernel code such as: CONFIG_CC_VERSION_TEXT; - keep the CONFIGs related with signature aligned with debian release, because the security feature is still in development. - 17 debs are built successfully. Build kernel-rt image into rootfs and initramfs. Build the LAT ustart image from them. - Use qemu to boot the ustart image, and the installer installs the rootfs successfully. The final debian system with this new kernel-rt boot up successfully and run some simple commands successfully. Story: 2009221 Task: 43335 Signed-off-by: Li Zhou <li.zhou@windriver.com> Change-Id: I59fbe9c98000fa1d57980e7e1cd45cd24aa30cda
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218 B
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5 lines
218 B
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0001-kernel-rt-Remove-the-old-changelog-file.patch
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0002-kernel-rt-Add-a-new-changelog-file.patch
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0003-kernel-rt-Add-a-kernel-config-file-for-stx-debian.patch
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0004-kernel-rt-Adapt-the-debian-folder-for-new-source.patch
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