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Josh Poimboeuf
e163be86ff
Use RBP instead of R14 for saving the old stack pointer before realignment. This resembles what compilers normally do. This enables ORC unwinding by allowing objtool to understand the stack realignment. Signed-off-by: Josh Poimboeuf <[email protected]> Tested-by: Ard Biesheuvel <[email protected]> Acked-by: Ard Biesheuvel <[email protected]> Tested-by: Sami Tolvanen <[email protected]> Acked-by: Peter Zijlstra (Intel) <[email protected]> Acked-by: Herbert Xu <[email protected]> Link: https://lore.kernel.org/r/02d00a0903a0959f4787e186e2a07d271e1f63d4.1614182415.git.jpoimboe@redhat.com
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.