Relicense to Apache-2.0 with the LLVM-exception (#137)

With agreement from contributors.

Author: joshtriplett

CONTRIBUTING.md

@@ -8,9 +8,11 @@ We want to make contributing to this project as easy and transparent as possible
 - Proposing new features
 
 License
-=====================
-WAMR uses the permissive open source `Apache 2.0 license`_ that allows you to freely use, modify, distribute and sell your own products that include Apache 2.0 licensed software. 
-Any contributions you make will be under the same license. Feel free to contact the maintainers if that's a concern.
+=======
+WAMR uses the same license as LLVM: the `Apache 2.0 license` with the LLVM
+exception. See the LICENSE file for details. This license allows you to freely
+use, modify, distribute and sell your own products based on WAMR.
+Any contributions you make will be under the same license.
 
 Code changes
 ===================

LICENSE

@@ -200,3 +200,20 @@
    See the License for the specific language governing permissions and
    limitations under the License.
 
+
+--- LLVM Exceptions to the Apache 2.0 License ----
+
+As an exception, if, as a result of your compiling your source code, portions
+of this Software are embedded into an Object form of such source code, you
+may redistribute such embedded portions in such Object form without complying
+with the conditions of Sections 4(a), 4(b) and 4(d) of the License.
+
+In addition, if you combine or link compiled forms of this Software with
+software that is licensed under the GPLv2 ("Combined Software") and if a
+court of competent jurisdiction determines that the patent provision (Section
+3), the indemnity provision (Section 9) or other Section of the License
+conflicts with the conditions of the GPLv2, you may retroactively and
+prospectively choose to deem waived or otherwise exclude such Section(s) of
+the License, but only in their entirety and only with respect to the Combined
+Software.
+

README.md

@@ -117,7 +117,12 @@ See the [roadmap](./doc/roadmap.md) to understand what major features are planed
 Please submit issues for any new feature request, or your plan for contributing new features.
 
 
-
+License
+=======
+WAMR uses the same license as LLVM: the `Apache 2.0 license` with the LLVM
+exception. See the LICENSE file for details. This license allows you to freely
+use, modify, distribute and sell your own products based on WAMR.
+Any contributions you make will be under the same license.
 
 
 Submit issues and contact the maintainers

core/app-mgr/app-manager/CMakeLists.txt

@@ -1,16 +1,5 @@
 # Copyright (C) 2019 Intel Corporation.  All rights reserved.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
 include_directories (.
                      include

core/app-mgr/app-manager/app_manager.c

@@ -1,17 +1,6 @@
 /*
  * Copyright (C) 2019 Intel Corporation.  All rights reserved.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  */
 
 #include "app_manager.h"

core/app-mgr/app-manager/app_manager.h

@@ -1,17 +1,6 @@
 /*
  * Copyright (C) 2019 Intel Corporation.  All rights reserved.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  */
 
 #ifndef APP_MANAGER_H

core/app-mgr/app-manager/app_manager_host.c

@@ -1,17 +1,6 @@
 /*
  * Copyright (C) 2019 Intel Corporation.  All rights reserved.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  */
 
 #include "bh_common.h"

core/app-mgr/app-manager/app_manager_host.h

@@ -1,17 +1,6 @@
 /*
  * Copyright (C) 2019 Intel Corporation.  All rights reserved.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  */
 
 #ifndef _APP_MANAGER_HOST_H_

core/app-mgr/app-manager/app_mgr.cmake

@@ -1,16 +1,5 @@
 # Copyright (C) 2019 Intel Corporation.  All rights reserved.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
 set (__APP_MGR_DIR ${CMAKE_CURRENT_LIST_DIR})
 

core/app-mgr/app-manager/ble_msg.c

@@ -1,17 +1,6 @@
 /*
  * Copyright (C) 2019 Intel Corporation.  All rights reserved.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  */
 
 #if 0