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MPX is being removed from the kernel due to a lack of support in the toolchain going forward (gcc). The first step is to remove the userspace-visible ABIs so that applications will stop using it. The most visible one are the enable/disable prctl()s. Remove them first. This is the most minimal and least invasive change needed to ensure that apps stop using MPX with new kernels. Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lkml.kernel.org/r/20190705175321.DB42F0AD@viggo.jf.intel.com
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.