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8f93402b92
Kernel entry points should be having ENDBR on for IBT configs. The SYSCALL entry points are found through taking their respective address in order to program them in the MSRs, while the exception entry points are found through UNWIND_HINT_IRET_REGS. The rule is that any UNWIND_HINT_IRET_REGS at sym+0 should have an ENDBR, see the later objtool ibt validation patch. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Josh Poimboeuf <jpoimboe@redhat.com> Link: https://lore.kernel.org/r/20220308154317.933157479@infradead.org |
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| kernel | ||
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| README | ||
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.