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Linux kernel source tree
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Andrii Nakryiko says: ==================== With BPF maps supporting direct map access (currently, array_map w/ single element, used for global data) that are read-only both from system call and BPF side, it's possible for BPF verifier to track its contents as known constants. Now it's possible for user-space control app to pre-initialize read-only map (e.g., for .rodata section) with user-provided flags and parameters and rely on BPF verifier to detect and eliminate dead code resulting from specific combination of input parameters. v1->v2: - BPF_F_RDONLY means nothing, stick to just map->frozen (Daniel); - stick to passing just offset into map_direct_value_addr (Martin). ==================== Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> |
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| arch | ||
| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| 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.