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9eda581bfeOn stock kernel gcc 14 emits avoidable register spillage: endbr64 call ffffffff81374630 <__fentry__> push %r13 push %r12 push %rbx sub $0x8,%rsp [snip] Total fast path is 99 bytes. Moving the slowpath out avoids it and shortens the fast path to 74 bytes. Signed-off-by: Mateusz Guzik <mjguzik@gmail.com> Link: https://patch.msgid.link/20251110095634.1433061-1-mjguzik@gmail.com Signed-off-by: Christian Brauner <brauner@kernel.org> |
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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 reStructuredText 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.