[Kernel] Update to Apache License v2.0

Update license for RT-Thread kernel.

16 files changed, 96 insertions, 255 deletions

diff --git a/src/clock.c b/src/clock.c
index 734c0d5014..9834f0f95c 100644
--- a/src/clock.c
+++ b/src/clock.c
@@ -1,21 +1,12 @@
 /*
- * File      : clock.c
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006 - 2012, RT-Thread Development Team
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
+ * Copyright (c) 2006-2018, RT-Thread Development Team
  *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
+ * SPDX-License-Identifier: Apache-2.0
  *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+/*
+ * File      : clock.c
  *
  * Change Logs:
  * Date           Author       Notes
diff --git a/src/components.c b/src/components.c
index 818e570b3c..410b20be93 100644
--- a/src/components.c
+++ b/src/components.c
@@ -1,21 +1,11 @@
 /*
- * File      : init.c
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2012 - 2015, RT-Thread Development Team
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
+ * Copyright (c) 2006-2018, RT-Thread Development Team
  *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/*
+ * File      : init.c
  *
  * Change Logs:
  * Date           Author       Notes
diff --git a/src/device.c b/src/device.c
index 0b662ae620..94f550d682 100644
--- a/src/device.c
+++ b/src/device.c
@@ -1,21 +1,11 @@
 /*
- * File      : device.c
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006 - 2013, RT-Thread Development Team
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
+ * Copyright (c) 2006-2018, RT-Thread Development Team
  *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/*
+ * File      : device.c
  *
  * Change Logs:
  * Date           Author       Notes
diff --git a/src/idle.c b/src/idle.c
index 1aca33d3e4..8a4734ab49 100644
--- a/src/idle.c
+++ b/src/idle.c
@@ -1,21 +1,11 @@
 /*
- * File      : idle.c
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006 - 2012, RT-Thread Development Team
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
+ * Copyright (c) 2006-2018, RT-Thread Development Team
  *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/*
+ * File      : idle.c
  *
  * Change Logs:
  * Date           Author       Notes
diff --git a/src/ipc.c b/src/ipc.c
index b1a5dbe402..d2a3ba766c 100644
--- a/src/ipc.c
+++ b/src/ipc.c
@@ -1,21 +1,11 @@
 /*
- * File      : ipc.c
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006 - 2012, RT-Thread Development Team
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
+ * Copyright (c) 2006-2018, RT-Thread Development Team
  *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/*
+ * File      : ipc.c
  *
  * Change Logs:
  * Date           Author       Notes
diff --git a/src/irq.c b/src/irq.c
index 9b933e3960..98a6fd3a04 100644
--- a/src/irq.c
+++ b/src/irq.c
@@ -1,21 +1,11 @@
 /*
- * File      : irq.c
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006 - 2012, RT-Thread Development Team
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
+ * Copyright (c) 2006-2018, RT-Thread Development Team
  *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/*
+ * File      : irq.c
  *
  * Change Logs:
  * Date           Author       Notes
diff --git a/src/kservice.c b/src/kservice.c
index 35444aa248..a31e5a6f93 100644
--- a/src/kservice.c
+++ b/src/kservice.c
@@ -1,21 +1,11 @@
 /*
- * File      : kservice.c
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006 - 2012, RT-Thread Development Team
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
+ * Copyright (c) 2006-2018, RT-Thread Development Team
  *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/*
+ * File      : kservice.c
  *
  * Change Logs:
  * Date           Author       Notes
diff --git a/src/mem.c b/src/mem.c
index 324a5f8f64..03e6f34eb4 100644
--- a/src/mem.c
+++ b/src/mem.c
@@ -1,21 +1,11 @@
 /*
- * File      : mem.c
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2008 - 2012, RT-Thread Development Team
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
+ * Copyright (c) 2006-2018, RT-Thread Development Team
  *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/*
+ * File      : mem.c
  *
  * Change Logs:
  * Date           Author       Notes
diff --git a/src/memheap.c b/src/memheap.c
index de637f2685..946f163b64 100644
--- a/src/memheap.c
+++ b/src/memheap.c
@@ -1,21 +1,11 @@
 /*
- * File      : memheap.c
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2012, RT-Thread Development Team
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
+ * Copyright (c) 2006-2018, RT-Thread Development Team
  *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/*
+ * File      : memheap.c
  *
  * Change Logs:
  * Date           Author       Notes
diff --git a/src/mempool.c b/src/mempool.c
index cd98e8c14e..e1af7d9e42 100644
--- a/src/mempool.c
+++ b/src/mempool.c
@@ -1,21 +1,11 @@
 /*
- * File      : mempool.c
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006 - 2012, RT-Thread Development Team
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
+ * Copyright (c) 2006-2018, RT-Thread Development Team
  *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/*
+ * File      : mempool.c
  *
  * Change Logs:
  * Date           Author       Notes
diff --git a/src/object.c b/src/object.c
index e9a2b99246..8dcfb2e57e 100644
--- a/src/object.c
+++ b/src/object.c
@@ -1,21 +1,11 @@
 /*
- * File      : object.c
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006 - 2012, RT-Thread Development Team
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
+ * Copyright (c) 2006-2018, RT-Thread Development Team
  *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/*
+ * File      : object.c
  *
  * Change Logs:
  * Date           Author       Notes
diff --git a/src/scheduler.c b/src/scheduler.c
index 1be1816bc2..8b5ffc9f4c 100644
--- a/src/scheduler.c
+++ b/src/scheduler.c
@@ -1,21 +1,11 @@
 /*
- * File      : scheduler.c
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006 - 2012, RT-Thread Development Team
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
+ * Copyright (c) 2006-2018, RT-Thread Development Team
  *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/*
+ * File      : scheduler.c
  *
  * Change Logs:
  * Date           Author       Notes
diff --git a/src/signal.c b/src/signal.c
index b2193957bc..6499d05a97 100644
--- a/src/signal.c
+++ b/src/signal.c
@@ -1,21 +1,11 @@
 /*
- * File      : signal.c
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006 - 2017, RT-Thread Development Team
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
+ * Copyright (c) 2006-2018, RT-Thread Development Team
  *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/*
+ * File      : signal.c
  *
  * Change Logs:
  * Date           Author       Notes
diff --git a/src/slab.c b/src/slab.c
index 16c68a2408..bf26c84cca 100644
--- a/src/slab.c
+++ b/src/slab.c
@@ -1,21 +1,11 @@
 /*
- * File      : slab.c
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2008 - 2012, RT-Thread Development Team
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
+ * Copyright (c) 2006-2018, RT-Thread Development Team
  *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/*
+ * File      : slab.c
  *
  * Change Logs:
  * Date           Author       Notes
diff --git a/src/thread.c b/src/thread.c
index 7febf32082..249219b8aa 100644
--- a/src/thread.c
+++ b/src/thread.c
@@ -1,21 +1,11 @@
 /*
- * File      : thread.c
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006 - 2012, RT-Thread Development Team
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
+ * Copyright (c) 2006-2018, RT-Thread Development Team
  *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/*
+ * File      : thread.c
  *
  * Change Logs:
  * Date           Author       Notes
diff --git a/src/timer.c b/src/timer.c
index 042826f41b..01e6211e04 100644
--- a/src/timer.c
+++ b/src/timer.c
@@ -1,21 +1,11 @@
 /*
- * File      : timer.c
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006 - 2012, RT-Thread Development Team
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
+ * Copyright (c) 2006-2018, RT-Thread Development Team
  *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/*
+ * File      : timer.c
  *
  * Change Logs:
  * Date           Author       Notes