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A running x86 UML kernel reports with architecture "i386:x86-64" as it is a sub-architecture. However, a difference with bare-metal x86 kernels is in how it manages tasks and the current task struct. To identify that the inferior is a UML kernel and not bare-metal, check for the existence of the UML specific symbol "cpu_tasks" which contains the current task struct. Link: https://lkml.kernel.org/r/b839d611e2906ccef2725c34d8e353fab35fe75e.1677469905.git.development@efficientek.com Signed-off-by: Glenn Washburn <development@efficientek.com> Reviewed-by: Jan Kiszka <jan.kiszka@siemens.com> Cc: Anton Ivanov <anton.ivanov@kot-begemot.co.uk> Cc: Johannes Berg <johannes@sipsolutions.net> Cc: Kieran Bingham <kbingham@kernel.org> Cc: Richard Weinberger <richard@nod.at> Signed-off-by: Andrew Morton <akpm@linux-foundation.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.