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Pass a "-j" argument to pahole if possible to reduce the time of generating BTF info. Since v1.22, pahole can parse DWARF and generate BTF with multithreading to speed up the conversion. It will reduce the overall build time of the kernel for seconds. v3 fixes whitespaces and improves the commit description. v2 checks the version of pahole to enable multithreading only if possible. [v2] https://lore.kernel.org/bpf/20220216193431.2691015-1-kuifeng@fb.com/ [v1] https://lore.kernel.org/bpf/20220216004616.2079689-1-kuifeng@fb.com/ Signed-off-by: Kui-Feng Lee <kuifeng@fb.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: Yonghong Song <yhs@fb.com> Link: https://lore.kernel.org/bpf/20220217175427.649713-1-kuifeng@fb.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.