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12befebe02
Ihor Solodrai says: ==================== BTF: arbitrary __attribute__ encoding This patch series extends BPF Type Format (BTF) to support arbitrary __attribute__ encoding. Setting the kind_flag to 1 in BTF type tags and decl tags now changes the meaning for the encoded tag, in particular with respect to btf_dump in libbpf. If the kflag is set, then the string encoded by the tag represents the full attribute-list of an attribute specifier [1]. This feature will allow extending tools such as pahole and bpftool to capture and use more granular type information, and make it easier to manage compatibility between clang and gcc BPF compilers. [1] https://gcc.gnu.org/onlinedocs/gcc-13.2.0/gcc/Attribute-Syntax.html v2->v3: nit fixes suggested by Andrii v1->v2: - When checking for specific BTF tags in the verifier, make sure the tag's kflag is 0 - Split docs and libbpf changes into separate patches - Various renames, as suggested by Andrii and Eduard v2: https://lore.kernel.org/bpf/20250127233955.2275804-1-ihor.solodrai@linux.dev/ v1: https://lore.kernel.org/bpf/20250122025308.2717553-1-ihor.solodrai@pm.me ==================== Link: https://patch.msgid.link/20250130201239.1429648-1-ihor.solodrai@linux.dev Signed-off-by: Andrii Nakryiko <andrii@kernel.org> |
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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.