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9e18308a5d
Add a volatile qualifier where a NULL pointer is deliberately dereferenced to trigger a panic. Without the volatile qualifier clang will issue the following warning: "indirection of non-volatile null pointer will be deleted, not trap [-Wnull-dereference]" and replace the pointer reference with a __builtin_trap() (which generates a ud2 instruction on x86_64). Signed-off-by: Michael Davidson <md@google.com> Signed-off-by: Matthias Kaehlcke <mka@chromium.org> Acked-by: Kees Cook <keescook@chromium.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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| README | ||
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. 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.