215199e3d9
Inspired by Salvatore Mesoraca's earlier[1] efforts to provide some in-tree guidance for kernel hardening Kconfig options, add a new fragment named "hardening-basic.config" (along with some arch-specific fragments) that enable a basic set of kernel hardening options that have the least (or no) performance impact and remove a reasonable set of legacy APIs. Using this fragment is as simple as running "make hardening.config". More extreme fragments can be added[2] in the future to cover all the recognized hardening options, and more per-architecture files can be added too. For now, document the fragments directly via comments. Perhaps .rst documentation can be generated from them in the future (rather than the other way around). [1] https://lore.kernel.org/kernel-hardening/1536516257-30871-1-git-send-email-s.mesoraca16@gmail.com/ [2] https://github.com/KSPP/linux/issues/14 Cc: Salvatore Mesoraca <s.mesoraca16@gmail.com> Cc: x86@kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-doc@vger.kernel.org Cc: linux-kbuild@vger.kernel.org Signed-off-by: Kees Cook <keescook@chromium.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.