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373f2f44c3
In the origin call case, if BPF_TRAMP_F_SKIP_FRAME is not set, it means that the trampoline is not called, but "jmp". Introduce the function bpf_trampoline_use_jmp() to check if the trampoline is in "jmp" mode. Do some adjustment on the "jmp" mode for the x86_64. The main adjustment that we make is for the stack parameter passing case, as the stack alignment logic changes in the "jmp" mode without the "rip". What's more, the location of the parameters on the stack also changes. Signed-off-by: Menglong Dong <dongml2@chinatelecom.cn> Link: https://lore.kernel.org/r/20251118123639.688444-5-dongml2@chinatelecom.cn Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
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| README | ||
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.