50832720ec
Currently the -mtune options are set in the Makefile, depending on what the compiler supports. One downside of doing it that way is that the chosen -mtune option is not recorded in the .config. Another downside is that if there's ever a need to do more complicated logic to calculate the correct option, that gets messy in the Makefile. So move the determination of which -mtune option to use into Kconfig logic. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230329234308.2215833-1-mpe@ellerman.id.au
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.