[ARM] Add ARM contributions agreement.

[rengolin]

Er, will we need one of those per company? Odd...

I thought that the general license and copyright terms already protected from patents, copyrights and other legal perils, so this looks redundant and a dangerous precedent.

I think we need lawyers looking at this...

--renato

[fpetrogalli]

In D27256#608985, @rengolin wrote:

Er, will we need one of those per company? Odd...

Maybe I should have added a bit more of context in the description of the commit. This has been done for other LLVM (sub) projects ARM is contributing.

Examples are:

• OpenMP: https://reviews.llvm.org/rL267446
• LLVM: http://llvm.org/svn/llvm-project/llvm/trunk/lib/Target/ARM/LICENSE.TXT (see table at the end of http://llvm.org/svn/llvm-project/llvm/trunk/LICENSE.TXT)

I thought that the general license and copyright terms already protected from patents, copyrights and other legal perils, so this looks redundant and a dangerous precedent.

I think we need lawyers looking at this...

--renato

[rengolin]

In D27256#608999, @fpetrogalli wrote:

• LLVM: http://llvm.org/svn/llvm-project/llvm/trunk/lib/Target/ARM/LICENSE.TXT (see table at the end of http://llvm.org/svn/llvm-project/llvm/trunk/LICENSE.TXT)

If that's there already, why add a new one on the root of the project?

[fpetrogalli]

In D27256#609000, @rengolin wrote:

In D27256#608999, @fpetrogalli wrote:

• LLVM: http://llvm.org/svn/llvm-project/llvm/trunk/lib/Target/ARM/LICENSE.TXT (see table at the end of http://llvm.org/svn/llvm-project/llvm/trunk/LICENSE.TXT)

If that's there already, why add a new one on the root of the project?

Isn't the license relative to the source tree? So that each of clang/llvm/openmp/paralell-libs/whatever-llvm subproject could have in principle different licenses?

All I have done here is to apply a request from our legal team, who has been asking to add such extension to the code base, as a requirement for any contribution ARM intends to do to parallel libs.

I see your point though: 1) parallel-libs is an llvm subproject which (quoting from README.rst) "[...] will use the normal LLVM license [...]" and 2) an "ARM contributions agreement" is already stated in the license file of the LLVM codebase, therefore 3) parallel-libs inherits the ARM contribution extension.

At the same time, I am not a lawyer, so I trust that our legal team knows what is best to do here.

One last thing. The contributions that ARM intend to upload to parallel-libs could in principle make parallel-libs an external (to llvm) library so that I somehow see the point of making sure that any contribution outside of an llvm context is covered by ARM contribution agreement (disclaimer: this last sentence is my personal interpretation of the problem, take it with a pinch of salt, i.e. don't base your decision on this as I might have misinterpreted the legal need of this license extension)

Thanks!

[rengolin]

In D27256#609011, @fpetrogalli wrote:

At the same time, I am not a lawyer, so I trust that our legal team knows what is best to do here.

I obviously cannot offer you or ARM any legal advice, nor I can assert how the license works across repositories, that's why I included Dan and Chris in this review.

Also, don't assume that the legal department knows what's best for LLVM, only what's best for ARM. Ultimately, the decision on how to proceed will be taken inside the community, most likely the foundation or whomever is the legal authority over the project.

It's possible that their reply to this review is to "contact [e-mail]" or something.

cheers,
--renato

ARM_Contributions.txt

+ARM Limited
+
+Software Grant License Agreement ("Agreement")
+
+Except for the license granted herein to you, ARM Limited ("ARM")
+reserves all right, title, and interest in and to the Software
+(defined below).
+
+Definition
+
+"Software" means the code and documentation as well as any original
+work of authorship, including any modifications or additions to an
+existing work, that is intentionally submitted by ARM to llvm.org
+(http://llvm.org) ("LLVM") for inclusion in, or documentation of, any
+of the products owned or managed by LLVM (the "Work"). For the
+purposes of this definition, "submitted" means any form of electronic,
+verbal, or written communication sent to LLVM or its representatives,
+including but not limited to communication on electronic mailing
+lists, source code control systems, and issue tracking systems that
+are managed by, or on behalf of, LLVM for the purpose of discussing
+and improving the Work, but excluding communication that is
+conspicuously marked otherwise.
+
+1. Grant of Copyright License. Subject to the terms and conditions of
+   this Agreement, ARM hereby grants to you and to recipients of the
+   Software distributed by LLVM a perpetual, worldwide, non-exclusive,
+   no-charge, royalty-free, irrevocable copyright license to
+   reproduce, prepare derivative works of, publicly display, publicly
+   perform, sublicense, and distribute the Software and such
+   derivative works.
+
+2. Grant of Patent License. Subject to the terms and conditions of
+   this Agreement, ARM hereby grants you and to recipients of the
+   Software distributed by LLVM a perpetual, worldwide, non-exclusive,
+   no-charge, royalty-free, irrevocable (except as stated in this
+   section) patent license to make, have made, use, offer to sell,
+   sell, import, and otherwise transfer the Work, where such license
+   applies only to those patent claims licensable by ARM that are
+   necessarily infringed by ARM's Software alone or by combination of
+   the Software with the Work to which such Software was submitted. If
+   any entity institutes patent litigation against ARM or any other
+   entity (including a cross-claim or counterclaim in a lawsuit)
+   alleging that ARM's Software, or the Work to which ARM has
+   contributed constitutes direct or contributory patent infringement,
+   then any patent licenses granted to that entity under this
+   Agreement for the Software or Work shall terminate as of the date
+   such litigation is filed.
+
+Unless required by applicable law or agreed to in writing, the
+software is provided on an "AS IS" BASIS, WITHOUT WARRANTIES OR
+CONDITIONS OF ANY KIND, either express or implied, including, without
+limitation, any warranties or conditions of TITLE, NON-INFRINGEMENT,
+MERCHANTABILITY, or FITNESS FOR A PARTICULAR PURPOSE.

README.rst

 ------------
 For simplicity, the `parallel-libs` project will use the normal LLVM license.
 While some runtime libraries use a dual license scheme in LLVM, we anticipate
 the project removing the need for this eventually and in the interim follow the
 simpler but still permissive license. Among other things, this makes it
 straightforward for these libraries to re-use core LLVM libraries where
 appropriate.
 
+ARM contributions
+-----------------
+
+Contributions from ARM Limited are covered under the Software Grant
+License Agreement specified in `ARM_Contributions.txt`
 
 ----------------------------------------------
 Mailing List and Bugs
 ----------------------------------------------
 Two mailing lists will be set up for the project:
 
 1. [e-mail] for discussions among project developers, and
 2. [e-mail] for patches and commits to the project.
 
 Each subproject library will manage its own components in Bugzilla. So, for
 example, there can be several Bugzilla components for different parts of
 StreamExecutor, etc.