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add subtest verifying BPF ksym iter behaviour. The BPF ksym iter program shows an example of dumping a format different to /proc/kallsyms. It adds KIND and MAX_SIZE fields which represent the kind of symbol (core kernel, module, ftrace, bpf, or kprobe) and the maximum size the symbol can be. The latter is calculated from the difference between current symbol value and the next symbol value. The key benefit for this iterator will likely be supporting in-kernel data-gathering rather than dumping symbol details to userspace and parsing the results. Signed-off-by: Alan Maguire <alan.maguire@oracle.com> Acked-by: Yonghong Song <yhs@fb.com> Link: https://lore.kernel.org/r/1657629105-7812-3-git-send-email-alan.maguire@oracle.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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.