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720e6a4351
Allow struct argument in trampoline based programs where the struct size should be <= 16 bytes. In such cases, the argument will be put into up to 2 registers for bpf, x86_64 and arm64 architectures. To support arch-specific trampoline manipulation, add arg_flags for additional struct information about arguments in btf_func_model. Such information will be used in arch specific function arch_prepare_bpf_trampoline() to prepare argument access properly in trampoline. Signed-off-by: Yonghong Song <yhs@fb.com> Link: https://lore.kernel.org/r/20220831152646.2078089-1-yhs@fb.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.