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Clang will perform various compile-time diagnostics on uses of various functions (e.g. simple bounds-checking on strcpy(), etc). These diagnostics can be assigned to other functions (for example, new implementations of the string functions under CONFIG_FORTIFY_SOURCE) using the "diagnose_as_builtin" attribute. This allows those functions to retain their compile-time diagnostic warnings. Cc: Nathan Chancellor <nathan@kernel.org> Cc: llvm@lists.linux.dev Reviewed-by: Miguel Ojeda <ojeda@kernel.org> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Signed-off-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20220208225350.1331628-5-keescook@chromium.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.