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| Filename | Latest commit message | Latest commit date |
|---|---|---|
1c8f9b91c4
This adds support for bpf-to-bpf function calls in the s390 JIT compiler. The JIT compiler converts the bpf call instructions to native branch instructions. After a round of the usual passes, the start addresses of the JITed images for the callee functions are known. Finally, to fixup the branch target addresses, we need to perform an extra pass. Because of the address range in which JITed images are allocated on s390, the offsets of the start addresses of these images from __bpf_call_base are as large as 64 bits. So, for a function call, the imm field of the instruction cannot be used to determine the callee's address. Use bpf_jit_get_func_addr() helper instead. The patch borrows a lot from: commit |
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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 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.