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c03e41470e
When using the kernel with an appended DTB it is useful to know where this will end up in the physical memory at the time the kernel boots. We add a debug print macro that will help out with this. Here is a sample debug print after passing -DDEBUG to head.S during compilation: DTB:0x40CEBA70 (0x000051B5) C:0x402080C0-0x40CF0CE0->0x41801D00-0x422EA920 DTB:0x422E56B0 (0x00005262) This means that the appended DTB is first found after the compressed kernel at 0x40CEBA70 of size 0x51B5 and then after the compressed kernel is moved to 0x41801D00 it is found again at 0x422E56B0 and is there size 0x5262. The growth in size of the FDT is due to the call to atags_to_fdt() that augments the DTB with ATAG information. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> |
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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.