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942437c97f
At the moment, the compilation of the old time32 system calls depends purely on the architecture. As systems with new libc based on 64-bit time_t are getting deployed, even architectures that previously supported these (notably x86-32 and arm32 but also many others) no longer depend on them, and removing them from a kernel image results in a smaller kernel binary, the same way we can leave out many other optional system calls. More importantly, on an embedded system that needs to keep working beyond year 2038, any user space program calling these system calls is likely a bug, so removing them from the kernel image does provide an extra debugging help for finding broken applications. I've gone back and forth on hiding this option unless CONFIG_EXPERT is set. This version leaves it visible based on the logic that eventually it will be turned off indefinitely. Acked-by: Christian Brauner <christian.brauner@ubuntu.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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.