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6676fd3c99
Once CONFIG_KSTACK_ERASE is enabled with Clang on i386, the build warns: kernel/kstack_erase.c:168:2: warning: function with attribute 'no_caller_saved_registers' should only call a function with attribute 'no_caller_saved_registers' or be compiled with '-mgeneral-regs-only' [-Wexcessive-regsave] Add -mgeneral-regs-only for the kstack_erase handler, to make Clang feel better (it is effectively a no-op flag for the kernel). No binary changes encountered. Build & boot tested with Clang 21 on x86_64, and i386. Build tested with GCC 14.2.0 on x86_64, i386, arm64, and arm. Reported-by: Nathan Chancellor <nathan@kernel.org> Closes: https://lore.kernel.org/all/20250726004313.GA3650901@ax162 Tested-by: Nathan Chancellor <nathan@kernel.org> Signed-off-by: Kees Cook <kees@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.