8a0e2b2d69
Supported on Tigerlake CPUs and newer Build the kernel with support for Indirect Branch Tracking, a hardware support course-grain forward-edge Control Flow Integrity protection. It enforces that all indirect calls must land on an ENDBR instruction, as such, the compiler will instrument the code with them to make this happen. In addition to building the kernel with IBT, seal all functions that are not indirect call targets, avoiding them ever becoming one. This requires LTO like objtool runs and will slow down the build. It does significantly reduce the number of ENDBR instructions in the kernel image.
LibreELEC
LibreELEC is a 'Just enough OS' Linux distribution for the award-winning Kodi software on popular mediacentre hardware. Further information on the project can be found on the LibreELEC website.
Issues & Support
Please ask questions in the LibreELEC forum: Help & Support or ask a member of project staff in the #libreelec IRC channel on Libera.Chat. Please report bugs via GitHub Issues.
Donations
Contributions towards current project funding goals can be made via OpenCollective.
License
LibreELEC original code is released under GPLv2.
Copyright
As LibreELEC includes code from many upstream projects it has many copyright owners; notably OpenELEC which we forked from after disagreeing with project direction and management, and OpenBricks/GeeXboX the uncredited source of the original 2009 build system. LibreELEC makes no claim of copyright on any upstream code. However all original LibreELEC authored code is copyright LibreELEC.tv. Patches to upstream code have the same license as the upstream project unless specified otherwise. For a complete copyright list please checkout the source code to examine license headers. Unless expressly stated otherwise all code submitted to the LibreELEC project (in any form) is licensed under GPLv2 and copyright is donated to the project. This approach gives the project freedom to maintain the code without the overhead of preserving contact with every submitter, e.g. GPLv3. You are free to retain copyright by adding your copyright header to each submitted code page. If you submit code that is not your own work it is your responsibility to place a header stating the copyright.