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df86ca0d2f
Allow attaching BTF-aware TRACING programs, previously attachable only through BPF_RAW_TRACEPOINT_OPEN command, through LINK_CREATE command: - BTF-aware raw tracepoints (tp_btf in libbpf lingo); - fentry/fexit/fmod_ret programs; - BPF LSM programs. This change converges all bpf_link-based attachments under LINK_CREATE command allowing to further extend the API with features like BPF cookie under "multiplexed" link_create section of bpf_attr. Non-BTF-aware raw tracepoints are left under BPF_RAW_TRACEPOINT_OPEN, but there is nothing preventing opening them up to LINK_CREATE as well. Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Reviewed-by: Kuifeng Lee <kuifeng@fb.com> Link: https://lore.kernel.org/bpf/20220421033945.3602803-2-andrii@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.