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The FreeRTOS GPL Exception Text:
Any FreeRTOS source code, whether modified or in it's original
release form, or whether in whole or in part, can only be distributed
by you under the terms of the GNU General Public License plus
this exception. An independent module is a module which is not
derived from or based on FreeRTOS.
Clause 1:
Linking FreeRTOS statically or dynamically with other modules is
making a combined work based on FreeRTOS. Thus, the terms
and conditions of the GNU General Public License cover the whole
combination.
As a special exception, the copyright holder of FreeRTOS gives
you permission to link FreeRTOS with independent modules that
communicate with FreeRTOS solely through the FreeRTOS API
interface, regardless of the license terms of these independent
modules, and to copy and distribute the resulting combined work
under terms of your choice, provided that
+ Every copy of the combined work is accompanied by a
written statement that details to the recipient the version
of FreeRTOS used and an offer by yourself to provide the
FreeRTOS source code (including any modifications you may
have made) should the recipient request it.
+ The combined work is not itself an RTOS, scheduler, kernel
or related product.
+ The independent modules add significant and primary
functionality to FreeRTOS and do not merely extend the
existing functionality already present in FreeRTOS.
Clause 2:
FreeRTOS may not be used for any competitive or comparative
purpose, including the publication of any form of run time or
compile time metric, without the express permission of Real Time
Engineers Ltd. (this is the norm within the industry and is intended
to ensure information accuracy).
-----------------------------------------------------------------------------------------
The standard GPL exception text:
GNU GENERAL PUBLIC LICENSE
Version 2, June 1991
Copyright (C) 1989, 1991 Free Software Foundation, Inc. 59
Temple Place, Suite 330, Boston, MA 02111-1307 USA
Everyone is permitted to copy and distribute verbatim copies of this
license document, but changing it is not allowed.
Preamble
The licenses for most software are designed to take away your
freedom to share and change it. By contrast, the GNU General
Public License is intended to guarantee your freedom to share and
change free software--to make sure the software is free for all its
users.
This General Public License applies to most of the Free Software
Foundation's software and to any other program whose authors
commit to using it. (Some other Free Software Foundation software
is covered by the GNU Library General Public License instead.)
You can apply it to your programs, too.
When we speak of free software, we are referring to freedom,
not price. Our General Public Licenses are designed to make sure
that you have the freedom to distribute copies of free software (and
charge for this service if you wish), that you receive source code
or can get it if you want it, that you can change the software or use
pieces of it in new free programs; and that you know you can do
these things.
To protect your rights, we need to make restrictions that forbid
anyone to deny you these rights or to ask you to surrender the
rights.
These restrictions translate to certain responsibilities for you if you
distribute copies of the software, or if you modify it.
For example, if you distribute copies of such a program, whether
gratis or for a fee, you must give the recipients all the rights that
you have. You must make sure that they, too, receive or can get the
source code. And you must show them these terms so they know
their rights.
We protect your rights with two steps: (1) copyright the software,
and (2) offer you this license which gives you legal permission to
copy, distribute and/or modify the software.
Also, for each author's protection and ours, we want to make
certain that everyone understands that there is no warranty for
this free software. If the software is modified by someone else and
passed on, we want its recipients to know that what they have is
not the original, so that any problems introduced by others will not
reflect on the original authors' reputations.
Finally, any free program is threatened constantly by software
patents. We wish to avoid the danger that redistributors of a free
program will individually obtain patent licenses, in effect making the
program proprietary. To prevent this, we have made it clear that any
patent must be licensed for everyone's free use or not licensed at
all.
The precise terms and conditions for copying, distribution and
modification follow.
GNU GENERAL PUBLIC LICENSE
TERMS AND CONDITIONS FOR COPYING,
DISTRIBUTION AND MODIFICATION
0. This License applies to any program or other work which
contains a notice placed by the copyright holder saying it may be
distributed under the terms of this General Public License. The
"Program", below, refers to any such program or work, and a "work
based on the Program" means either the Program or any derivative
work under copyright law: that is to say, a work containing the
Program or a portion of it, either verbatim or with modifications
and/or translated into another language. (Hereinafter, translation is
included without limitation in the term "modification".) Each licensee
is addressed as "you".
Activities other than copying, distribution and modification are
not covered by this License; they are outside its scope. The act
of running the Program is not restricted, and the output from the
Program is covered only if its contents constitute a work based on
the Program (independent of having been made by running the
Program). Whether that is true depends on what the Program does.
1. You may copy and distribute verbatim copies of the Program's
source code as you receive it, in any medium, provided that
you conspicuously and appropriately publish on each copy an
appropriate copyright notice and disclaimer of warranty; keep intact
all the notices that refer to this License and to the absence of any
warranty; and give any other recipients of the Program a copy of
this License along with the Program.
You may charge a fee for the physical act of transferring a copy,
and you may at your option offer warranty protection in exchange
for a fee.
2. You may modify your copy or copies of the Program or any
portion of it, thus forming a work based on the Program, and copy
and distribute such modifications or work under the terms of Section
1 above, provided that you also meet all of these conditions:
a) You must cause the modified files to carry prominent
notices stating that you changed the files and the date of
any change.
b) You must cause any work that you distribute or publish,
that in whole or in part contains or is derived from the
Program or any part thereof, to be licensed as a whole at no
charge to all third parties under the terms of this License.
c) If the modified program normally reads commands
interactively when run, you must cause it, when started
running for such interactive use in the most ordinary way, to
print or display an announcement including an appropriate
copyright notice and a notice that there is no warranty (or
else, saying that you provide a warranty) and that users may
redistribute the program under these conditions, and telling
the user how to view a copy of this License. (Exception: if the
Program itself is interactive but does not normally print such
an announcement, your work based on the Program is not
required to print an announcement.)
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