Move all license headers to SPDX format.

44 files changed, 44 insertions, 528 deletions

diff --git a/host/lib/rfnoc/CMakeLists.txt b/host/lib/rfnoc/CMakeLists.txt
index 7a41e3541..f677b2b56 100644
--- a/host/lib/rfnoc/CMakeLists.txt
+++ b/host/lib/rfnoc/CMakeLists.txt
@@ -1,18 +1,7 @@
 #
 # Copyright 2014-2015,2017 Ettus Research LLC
 #
-# 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 3 of the License, or
-# (at your option) any later version.
-#
-# 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, see <http://www.gnu.org/licenses/>.
+# SPDX-License-Identifier: GPL-3.0
 #
 
 ########################################################################
diff --git a/host/lib/rfnoc/block_ctrl_base.cpp b/host/lib/rfnoc/block_ctrl_base.cpp
index 1a753403a..1dfe66292 100644
--- a/host/lib/rfnoc/block_ctrl_base.cpp
+++ b/host/lib/rfnoc/block_ctrl_base.cpp
@@ -1,18 +1,7 @@
 //
 // Copyright 2014-2015 Ettus Research LLC
 //
-// 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 3 of the License, or
-// (at your option) any later version.
-//
-// 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, see <http://www.gnu.org/licenses/>.
+// SPDX-License-Identifier: GPL-3.0
 //
 
 // This file contains the block control functions for block controller classes.
diff --git a/host/lib/rfnoc/block_ctrl_base_factory.cpp b/host/lib/rfnoc/block_ctrl_base_factory.cpp
index 9e32b81d7..2029b7ccc 100644
--- a/host/lib/rfnoc/block_ctrl_base_factory.cpp
+++ b/host/lib/rfnoc/block_ctrl_base_factory.cpp
@@ -1,18 +1,7 @@
 //
 // Copyright 2014 Ettus Research LLC
 //
-// 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 3 of the License, or
-// (at your option) any later version.
-//
-// 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, see <http://www.gnu.org/licenses/>.
+// SPDX-License-Identifier: GPL-3.0
 //
 
 #include <boost/format.hpp>
diff --git a/host/lib/rfnoc/block_ctrl_impl.cpp b/host/lib/rfnoc/block_ctrl_impl.cpp
index be21538f3..fe2e4347f 100644
--- a/host/lib/rfnoc/block_ctrl_impl.cpp
+++ b/host/lib/rfnoc/block_ctrl_impl.cpp
@@ -1,18 +1,7 @@
 //
 // Copyright 2014 Ettus Research LLC
 //
-// 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 3 of the License, or
-// (at your option) any later version.
-//
-// 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, see <http://www.gnu.org/licenses/>.
+// SPDX-License-Identifier: GPL-3.0
 //
 
 #include <uhd/rfnoc/block_ctrl.hpp>
diff --git a/host/lib/rfnoc/block_id.cpp b/host/lib/rfnoc/block_id.cpp
index 55bd5e6f7..55def1106 100644
--- a/host/lib/rfnoc/block_id.cpp
+++ b/host/lib/rfnoc/block_id.cpp
@@ -1,18 +1,7 @@
 //
 // Copyright 2014 Ettus Research LLC
 //
-// 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 3 of the License, or
-// (at your option) any later version.
-//
-// 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, see <http://www.gnu.org/licenses/>.
+// SPDX-License-Identifier: GPL-3.0
 //
 
 #include <boost/format.hpp>
diff --git a/host/lib/rfnoc/blockdef_xml_impl.cpp b/host/lib/rfnoc/blockdef_xml_impl.cpp
index cf975b3c2..b320bba5e 100644
--- a/host/lib/rfnoc/blockdef_xml_impl.cpp
+++ b/host/lib/rfnoc/blockdef_xml_impl.cpp
@@ -1,18 +1,7 @@
 //
 // Copyright 2014-2015 Ettus Research LLC
 //
-// 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 3 of the License, or
-// (at your option) any later version.
-//
-// 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, see <http://www.gnu.org/licenses/>.
+// SPDX-License-Identifier: GPL-3.0
 //
 
 #include <uhd/exception.hpp>
diff --git a/host/lib/rfnoc/ctrl_iface.cpp b/host/lib/rfnoc/ctrl_iface.cpp
index 29da42370..47ab27b39 100644
--- a/host/lib/rfnoc/ctrl_iface.cpp
+++ b/host/lib/rfnoc/ctrl_iface.cpp
@@ -1,18 +1,7 @@
 //
 // Copyright 2012-2016 Ettus Research LLC
 //
-// 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 3 of the License, or
-// (at your option) any later version.
-//
-// 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, see <http://www.gnu.org/licenses/>.
+// SPDX-License-Identifier: GPL-3.0
 //
 
 #include "ctrl_iface.hpp"
diff --git a/host/lib/rfnoc/ctrl_iface.hpp b/host/lib/rfnoc/ctrl_iface.hpp
index 5e88c3dd6..6ebdd947a 100644
--- a/host/lib/rfnoc/ctrl_iface.hpp
+++ b/host/lib/rfnoc/ctrl_iface.hpp
@@ -1,18 +1,7 @@
 //
 // Copyright 2012-2016 Ettus Research LLC
 //
-// 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 3 of the License, or
-// (at your option) any later version.
-//
-// 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, see <http://www.gnu.org/licenses/>.
+// SPDX-License-Identifier: GPL-3.0
 //
 
 #ifndef INCLUDED_LIBUHD_RFNOC_CTRL_IFACE_HPP
diff --git a/host/lib/rfnoc/ddc_block_ctrl_impl.cpp b/host/lib/rfnoc/ddc_block_ctrl_impl.cpp
index 84236c1b8..adedf69ae 100644
--- a/host/lib/rfnoc/ddc_block_ctrl_impl.cpp
+++ b/host/lib/rfnoc/ddc_block_ctrl_impl.cpp
@@ -1,18 +1,7 @@
 //
 // Copyright 2016 Ettus Research
 //
-// 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 3 of the License, or
-// (at your option) any later version.
-//
-// 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, see <http://www.gnu.org/licenses/>.
+// SPDX-License-Identifier: GPL-3.0
 //
 
 #include "dsp_core_utils.hpp"
diff --git a/host/lib/rfnoc/dma_fifo_block_ctrl_impl.cpp b/host/lib/rfnoc/dma_fifo_block_ctrl_impl.cpp
index 2a5117149..438937430 100644
--- a/host/lib/rfnoc/dma_fifo_block_ctrl_impl.cpp
+++ b/host/lib/rfnoc/dma_fifo_block_ctrl_impl.cpp
@@ -1,18 +1,7 @@
 //
 // Copyright 2016 Ettus Research LLC
 //
-// 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 3 of the License, or
-// (at your option) any later version.
-//
-// 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, see <http://www.gnu.org/licenses/>.
+// SPDX-License-Identifier: GPL-3.0
 //
 
 #include <uhd/rfnoc/dma_fifo_block_ctrl.hpp>
diff --git a/host/lib/rfnoc/duc_block_ctrl_impl.cpp b/host/lib/rfnoc/duc_block_ctrl_impl.cpp
index ca9e88f81..3a779566b 100644
--- a/host/lib/rfnoc/duc_block_ctrl_impl.cpp
+++ b/host/lib/rfnoc/duc_block_ctrl_impl.cpp
@@ -1,18 +1,7 @@
 //
 // Copyright 2016 Ettus Research
 //
-// 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 3 of the License, or
-// (at your option) any later version.
-//
-// 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, see <http://www.gnu.org/licenses/>.
+// SPDX-License-Identifier: GPL-3.0
 //
 
 #include "dsp_core_utils.hpp"
diff --git a/host/lib/rfnoc/graph_impl.cpp b/host/lib/rfnoc/graph_impl.cpp
index 31f34580b..118e9d302 100644
--- a/host/lib/rfnoc/graph_impl.cpp
+++ b/host/lib/rfnoc/graph_impl.cpp
@@ -1,18 +1,7 @@
 //
 // Copyright 2016 Ettus Research LLC
 //
-// 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 3 of the License, or
-// (at your option) any later version.
-//
-// 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, see <http://www.gnu.org/licenses/>.
+// SPDX-License-Identifier: GPL-3.0
 //
 
 #include "graph_impl.hpp"
diff --git a/host/lib/rfnoc/graph_impl.hpp b/host/lib/rfnoc/graph_impl.hpp
index 12dbf6357..865298e71 100644
--- a/host/lib/rfnoc/graph_impl.hpp
+++ b/host/lib/rfnoc/graph_impl.hpp
@@ -1,18 +1,7 @@
 //
 // Copyright 2016 Ettus Research LLC
 //
-// 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 3 of the License, or
-// (at your option) any later version.
-//
-// 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, see <http://www.gnu.org/licenses/>.
+// SPDX-License-Identifier: GPL-3.0
 //
 
 #ifndef INCLUDED_LIBUHD_RFNOC_GRAPH_IMPL_HPP
diff --git a/host/lib/rfnoc/legacy_compat.cpp b/host/lib/rfnoc/legacy_compat.cpp
index 7b80bf175..945ce43ad 100644
--- a/host/lib/rfnoc/legacy_compat.cpp
+++ b/host/lib/rfnoc/legacy_compat.cpp
@@ -1,18 +1,7 @@
 //
 // Copyright 2016 Ettus Research LLC
 //
-// 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 3 of the License, or
-// (at your option) any later version.
-//
-// 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, see <http://www.gnu.org/licenses/>.
+// SPDX-License-Identifier: GPL-3.0
 //
 
 #include "legacy_compat.hpp"
diff --git a/host/lib/rfnoc/legacy_compat.hpp b/host/lib/rfnoc/legacy_compat.hpp
index 1ba3a81b9..332b50dd9 100644
--- a/host/lib/rfnoc/legacy_compat.hpp
+++ b/host/lib/rfnoc/legacy_compat.hpp
@@ -1,18 +1,7 @@
 //
 // Copyright 2016 Ettus Research LLC
 //
-// 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 3 of the License, or
-// (at your option) any later version.
-//
-// 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, see <http://www.gnu.org/licenses/>.
+// SPDX-License-Identifier: GPL-3.0
 //
 
 #ifndef INCLUDED_RFNOC_LEGACY_COMPAT_HPP
diff --git a/host/lib/rfnoc/nocscript/CMakeLists.txt b/host/lib/rfnoc/nocscript/CMakeLists.txt
index 77fcc101c..3d956b2c2 100644
--- a/host/lib/rfnoc/nocscript/CMakeLists.txt
+++ b/host/lib/rfnoc/nocscript/CMakeLists.txt
@@ -1,18 +1,7 @@
 #
 # Copyright 2015 Ettus Research LLC
 #
-# 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 3 of the License, or
-# (at your option) any later version.
-#
-# 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, see <http://www.gnu.org/licenses/>.
+# SPDX-License-Identifier: GPL-3.0
 #
 
 INCLUDE_DIRECTORIES(${CMAKE_CURRENT_SOURCE_DIR})
diff --git a/host/lib/rfnoc/nocscript/block_iface.cpp b/host/lib/rfnoc/nocscript/block_iface.cpp
index 544593def..c921d96c6 100644
--- a/host/lib/rfnoc/nocscript/block_iface.cpp
+++ b/host/lib/rfnoc/nocscript/block_iface.cpp
@@ -1,18 +1,7 @@
 //
 // Copyright 2015 Ettus Research LLC
 //
-// 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 3 of the License, or
-// (at your option) any later version.
-//
-// 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, see <http://www.gnu.org/licenses/>.
+// SPDX-License-Identifier: GPL-3.0
 //
 
 #include "block_iface.hpp"
diff --git a/host/lib/rfnoc/nocscript/block_iface.hpp b/host/lib/rfnoc/nocscript/block_iface.hpp
index 6354409f2..e24697040 100644
--- a/host/lib/rfnoc/nocscript/block_iface.hpp
+++ b/host/lib/rfnoc/nocscript/block_iface.hpp
@@ -1,18 +1,7 @@
 //
 // Copyright 2015 Ettus Research LLC
 //
-// 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 3 of the License, or
-// (at your option) any later version.
-//
-// 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, see <http://www.gnu.org/licenses/>.
+// SPDX-License-Identifier: GPL-3.0
 //
 
 #include "expression.hpp"
diff --git a/host/lib/rfnoc/nocscript/expression.cpp b/host/lib/rfnoc/nocscript/expression.cpp
index 4f7d98108..d4d46eab7 100644
--- a/host/lib/rfnoc/nocscript/expression.cpp
+++ b/host/lib/rfnoc/nocscript/expression.cpp
@@ -1,18 +1,7 @@
 //
 // Copyright 2015 Ettus Research LLC
 //
-// 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 3 of the License, or
-// (at your option) any later version.
-//
-// 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, see <http://www.gnu.org/licenses/>.
+// SPDX-License-Identifier: GPL-3.0
 //
 
 #include "expression.hpp"
diff --git a/host/lib/rfnoc/nocscript/expression.hpp b/host/lib/rfnoc/nocscript/expression.hpp
index 6cf649a59..9bab4bef8 100644
--- a/host/lib/rfnoc/nocscript/expression.hpp
+++ b/host/lib/rfnoc/nocscript/expression.hpp
@@ -1,18 +1,7 @@
 //
 // Copyright 2015 Ettus Research LLC
 //
-// 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 3 of the License, or
-// (at your option) any later version.
-//
-// 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, see <http://www.gnu.org/licenses/>.
+// SPDX-License-Identifier: GPL-3.0
 //
 
 #include <uhd/exception.hpp>
diff --git a/host/lib/rfnoc/nocscript/function_table.cpp b/host/lib/rfnoc/nocscript/function_table.cpp
index aabaef635..5fa0242bb 100644
--- a/host/lib/rfnoc/nocscript/function_table.cpp
+++ b/host/lib/rfnoc/nocscript/function_table.cpp
@@ -1,18 +1,7 @@
 //
 // Copyright 2015 Ettus Research LLC
 //
-// 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 3 of the License, or
-// (at your option) any later version.
-//
-// 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, see <http://www.gnu.org/licenses/>.
+// SPDX-License-Identifier: GPL-3.0
 //
 
 #include "function_table.hpp"
diff --git a/host/lib/rfnoc/nocscript/function_table.hpp b/host/lib/rfnoc/nocscript/function_table.hpp
index 6c715308e..918b5c4d3 100644
--- a/host/lib/rfnoc/nocscript/function_table.hpp
+++ b/host/lib/rfnoc/nocscript/function_table.hpp
@@ -1,18 +1,7 @@
 //
 // Copyright 2015 Ettus Research LLC
 //
-// 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 3 of the License, or
-// (at your option) any later version.
-//
-// 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, see <http://www.gnu.org/licenses/>.
+// SPDX-License-Identifier: GPL-3.0
 //
 
 #include "expression.hpp"
diff --git a/host/lib/rfnoc/nocscript/gen_basic_funcs.py b/host/lib/rfnoc/nocscript/gen_basic_funcs.py
index e4971d2e9..658f50579 100755
--- a/host/lib/rfnoc/nocscript/gen_basic_funcs.py
+++ b/host/lib/rfnoc/nocscript/gen_basic_funcs.py
@@ -265,18 +265,7 @@ HEADER = """<% import time %>//
 ///////////////////////////////////////////////////////////////////////
 // Copyright 2015 Ettus Research LLC
 //
-// 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 3 of the License, or
-// (at your option) any later version.
-//
-// 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, see <http://www.gnu.org/licenses/>.
+// SPDX-License-Identifier: GPL-3.0
 //
 
 /****************************************************************************
diff --git a/host/lib/rfnoc/nocscript/parser.cpp b/host/lib/rfnoc/nocscript/parser.cpp
index bb7ed6cdf..c7771e359 100644
--- a/host/lib/rfnoc/nocscript/parser.cpp
+++ b/host/lib/rfnoc/nocscript/parser.cpp
@@ -1,18 +1,7 @@
 //
 // Copyright 2015 Ettus Research LLC
 //
-// 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 3 of the License, or
-// (at your option) any later version.
-//
-// 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, see <http://www.gnu.org/licenses/>.
+// SPDX-License-Identifier: GPL-3.0
 //
 
 #include "parser.hpp"
diff --git a/host/lib/rfnoc/nocscript/parser.hpp b/host/lib/rfnoc/nocscript/parser.hpp
index 32fecd2c0..8d7153330 100644
--- a/host/lib/rfnoc/nocscript/parser.hpp
+++ b/host/lib/rfnoc/nocscript/parser.hpp
@@ -1,18 +1,7 @@
 //
 // Copyright 2015 Ettus Research LLC
 //
-// 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 3 of the License, or
-// (at your option) any later version.
-//
-// 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, see <http://www.gnu.org/licenses/>.
+// SPDX-License-Identifier: GPL-3.0
 //
 
 #include "expression.hpp"
diff --git a/host/lib/rfnoc/node_ctrl_base.cpp b/host/lib/rfnoc/node_ctrl_base.cpp
index e9424d319..fd8a13aa9 100644
--- a/host/lib/rfnoc/node_ctrl_base.cpp
+++ b/host/lib/rfnoc/node_ctrl_base.cpp
@@ -1,18 +1,7 @@
 //
 // Copyright 2014 Ettus Research LLC
 //
-// 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 3 of the License, or
-// (at your option) any later version.
-//
-// 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, see <http://www.gnu.org/licenses/>.
+// SPDX-License-Identifier: GPL-3.0
 //
 
 #include <uhd/rfnoc/node_ctrl_base.hpp>
diff --git a/host/lib/rfnoc/radio_ctrl_impl.cpp b/host/lib/rfnoc/radio_ctrl_impl.cpp
index 81bc0600b..8d77ff36b 100644
--- a/host/lib/rfnoc/radio_ctrl_impl.cpp
+++ b/host/lib/rfnoc/radio_ctrl_impl.cpp
@@ -1,18 +1,7 @@
 //
 // Copyright 2014-2016 Ettus Research LLC
 //
-// 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 3 of the License, or
-// (at your option) any later version.
-//
-// 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, see <http://www.gnu.org/licenses/>.
+// SPDX-License-Identifier: GPL-3.0
 //
 
 #include "wb_iface_adapter.hpp"
diff --git a/host/lib/rfnoc/radio_ctrl_impl.hpp b/host/lib/rfnoc/radio_ctrl_impl.hpp
index dc4ab114e..9d6f43008 100644
--- a/host/lib/rfnoc/radio_ctrl_impl.hpp
+++ b/host/lib/rfnoc/radio_ctrl_impl.hpp
@@ -1,18 +1,7 @@
 //
 // Copyright 2014-2016 Ettus Research LLC
 //
-// 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 3 of the License, or
-// (at your option) any later version.
-//
-// 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, see <http://www.gnu.org/licenses/>.
+// SPDX-License-Identifier: GPL-3.0
 //
 
 #ifndef INCLUDED_LIBUHD_RFNOC_RADIO_CTRL_IMPL_HPP
diff --git a/host/lib/rfnoc/rate_node_ctrl.cpp b/host/lib/rfnoc/rate_node_ctrl.cpp
index 5e3117e23..a446fcb98 100644
--- a/host/lib/rfnoc/rate_node_ctrl.cpp
+++ b/host/lib/rfnoc/rate_node_ctrl.cpp
@@ -1,18 +1,7 @@
 //
 // Copyright 2014-2015 Ettus Research LLC
 //
-// 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 3 of the License, or
-// (at your option) any later version.
-//
-// 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, see <http://www.gnu.org/licenses/>.
+// SPDX-License-Identifier: GPL-3.0
 //
 
 #include <uhd/rfnoc/rate_node_ctrl.hpp>
diff --git a/host/lib/rfnoc/rx_stream_terminator.cpp b/host/lib/rfnoc/rx_stream_terminator.cpp
index 7d38e2101..be89effca 100644
--- a/host/lib/rfnoc/rx_stream_terminator.cpp
+++ b/host/lib/rfnoc/rx_stream_terminator.cpp
@@ -1,18 +1,7 @@
 //
 // Copyright 2014 Ettus Research LLC
 //
-// 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 3 of the License, or
-// (at your option) any later version.
-//
-// 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, see <http://www.gnu.org/licenses/>.
+// SPDX-License-Identifier: GPL-3.0
 //
 
 #include "rx_stream_terminator.hpp"
diff --git a/host/lib/rfnoc/rx_stream_terminator.hpp b/host/lib/rfnoc/rx_stream_terminator.hpp
index fb205d00c..121613c28 100644
--- a/host/lib/rfnoc/rx_stream_terminator.hpp
+++ b/host/lib/rfnoc/rx_stream_terminator.hpp
@@ -1,18 +1,7 @@
 //
 // Copyright 2014 Ettus Research LLC
 //
-// 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 3 of the License, or
-// (at your option) any later version.
-//
-// 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, see <http://www.gnu.org/licenses/>.
+// SPDX-License-Identifier: GPL-3.0
 //
 
 #ifndef INCLUDED_LIBUHD_RFNOC_TERMINATOR_RECV_HPP
diff --git a/host/lib/rfnoc/scalar_node_ctrl.cpp b/host/lib/rfnoc/scalar_node_ctrl.cpp
index 56cc4dcf2..e68fb1ffc 100644
--- a/host/lib/rfnoc/scalar_node_ctrl.cpp
+++ b/host/lib/rfnoc/scalar_node_ctrl.cpp
@@ -1,18 +1,7 @@
 //
 // Copyright 2014-2015 Ettus Research LLC
 //
-// 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 3 of the License, or
-// (at your option) any later version.
-//
-// 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, see <http://www.gnu.org/licenses/>.
+// SPDX-License-Identifier: GPL-3.0
 //
 
 #include <uhd/rfnoc/scalar_node_ctrl.hpp>
diff --git a/host/lib/rfnoc/sink_block_ctrl_base.cpp b/host/lib/rfnoc/sink_block_ctrl_base.cpp
index 48291e02f..025ef0333 100644
--- a/host/lib/rfnoc/sink_block_ctrl_base.cpp
+++ b/host/lib/rfnoc/sink_block_ctrl_base.cpp
@@ -1,18 +1,7 @@
 //
 // Copyright 2014 Ettus Research LLC
 //
-// 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 3 of the License, or
-// (at your option) any later version.
-//
-// 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, see <http://www.gnu.org/licenses/>.
+// SPDX-License-Identifier: GPL-3.0
 //
 
 #include "utils.hpp"
diff --git a/host/lib/rfnoc/sink_node_ctrl.cpp b/host/lib/rfnoc/sink_node_ctrl.cpp
index c570b8eca..f2e04ee8e 100644
--- a/host/lib/rfnoc/sink_node_ctrl.cpp
+++ b/host/lib/rfnoc/sink_node_ctrl.cpp
@@ -1,18 +1,7 @@
 //
 // Copyright 2014 Ettus Research LLC
 //
-// 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 3 of the License, or
-// (at your option) any later version.
-//
-// 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, see <http://www.gnu.org/licenses/>.
+// SPDX-License-Identifier: GPL-3.0
 //
 
 #include "utils.hpp"
diff --git a/host/lib/rfnoc/source_block_ctrl_base.cpp b/host/lib/rfnoc/source_block_ctrl_base.cpp
index 4cc889545..7ccd3cfeb 100644
--- a/host/lib/rfnoc/source_block_ctrl_base.cpp
+++ b/host/lib/rfnoc/source_block_ctrl_base.cpp
@@ -1,18 +1,7 @@
 //
 // Copyright 2014 Ettus Research LLC
 //
-// 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 3 of the License, or
-// (at your option) any later version.
-//
-// 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, see <http://www.gnu.org/licenses/>.
+// SPDX-License-Identifier: GPL-3.0
 //
 
 #include "utils.hpp"
diff --git a/host/lib/rfnoc/source_node_ctrl.cpp b/host/lib/rfnoc/source_node_ctrl.cpp
index 1b9d427b9..97c7b9c02 100644
--- a/host/lib/rfnoc/source_node_ctrl.cpp
+++ b/host/lib/rfnoc/source_node_ctrl.cpp
@@ -1,18 +1,7 @@
 //
 // Copyright 2014 Ettus Research LLC
 //
-// 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 3 of the License, or
-// (at your option) any later version.
-//
-// 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, see <http://www.gnu.org/licenses/>.
+// SPDX-License-Identifier: GPL-3.0
 //
 
 #include "utils.hpp"
diff --git a/host/lib/rfnoc/stream_sig.cpp b/host/lib/rfnoc/stream_sig.cpp
index 3d953bcb2..9a957aa47 100644
--- a/host/lib/rfnoc/stream_sig.cpp
+++ b/host/lib/rfnoc/stream_sig.cpp
@@ -1,18 +1,7 @@
 //
 // Copyright 2014 Ettus Research LLC
 //
-// 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 3 of the License, or
-// (at your option) any later version.
-//
-// 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, see <http://www.gnu.org/licenses/>.
+// SPDX-License-Identifier: GPL-3.0
 //
 
 #include <uhd/rfnoc/stream_sig.hpp>
diff --git a/host/lib/rfnoc/tick_node_ctrl.cpp b/host/lib/rfnoc/tick_node_ctrl.cpp
index 625771945..c0bcf6360 100644
--- a/host/lib/rfnoc/tick_node_ctrl.cpp
+++ b/host/lib/rfnoc/tick_node_ctrl.cpp
@@ -1,18 +1,7 @@
 //
 // Copyright 2014-2015 Ettus Research LLC
 //
-// 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 3 of the License, or
-// (at your option) any later version.
-//
-// 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, see <http://www.gnu.org/licenses/>.
+// SPDX-License-Identifier: GPL-3.0
 //
 
 #include <uhd/rfnoc/tick_node_ctrl.hpp>
diff --git a/host/lib/rfnoc/tx_stream_terminator.cpp b/host/lib/rfnoc/tx_stream_terminator.cpp
index 1d2653d47..4062c9756 100644
--- a/host/lib/rfnoc/tx_stream_terminator.cpp
+++ b/host/lib/rfnoc/tx_stream_terminator.cpp
@@ -1,18 +1,7 @@
 //
 // Copyright 2014-2015 Ettus Research LLC
 //
-// 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 3 of the License, or
-// (at your option) any later version.
-//
-// 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, see <http://www.gnu.org/licenses/>.
+// SPDX-License-Identifier: GPL-3.0
 //
 
 #include "tx_stream_terminator.hpp"
diff --git a/host/lib/rfnoc/tx_stream_terminator.hpp b/host/lib/rfnoc/tx_stream_terminator.hpp
index dd2b991f6..6d7e81aea 100644
--- a/host/lib/rfnoc/tx_stream_terminator.hpp
+++ b/host/lib/rfnoc/tx_stream_terminator.hpp
@@ -1,18 +1,7 @@
 //
 // Copyright 2014 Ettus Research LLC
 //
-// 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 3 of the License, or
-// (at your option) any later version.
-//
-// 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, see <http://www.gnu.org/licenses/>.
+// SPDX-License-Identifier: GPL-3.0
 //
 
 #ifndef INCLUDED_LIBUHD_RFNOC_TERMINATOR_SEND_HPP
diff --git a/host/lib/rfnoc/utils.hpp b/host/lib/rfnoc/utils.hpp
index 1ee10397c..ff9e9e627 100644
--- a/host/lib/rfnoc/utils.hpp
+++ b/host/lib/rfnoc/utils.hpp
@@ -1,18 +1,7 @@
 //
 // Copyright 2014 Ettus Research LLC
 //
-// 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 3 of the License, or
-// (at your option) any later version.
-//
-// 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, see <http://www.gnu.org/licenses/>.
+// SPDX-License-Identifier: GPL-3.0
 //
 
 #ifndef INCLUDED_LIBUHD_RFNOC_UTILS_HPP
diff --git a/host/lib/rfnoc/wb_iface_adapter.cpp b/host/lib/rfnoc/wb_iface_adapter.cpp
index c2de754b2..a94733596 100644
--- a/host/lib/rfnoc/wb_iface_adapter.cpp
+++ b/host/lib/rfnoc/wb_iface_adapter.cpp
@@ -1,18 +1,7 @@
 //
 // Copyright 2016 Ettus Research LLC
 //
-// 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 3 of the License, or
-// (at your option) any later version.
-//
-// 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, see <http://www.gnu.org/licenses/>.
+// SPDX-License-Identifier: GPL-3.0
 //
 
 #include "wb_iface_adapter.hpp"
diff --git a/host/lib/rfnoc/wb_iface_adapter.hpp b/host/lib/rfnoc/wb_iface_adapter.hpp
index d83bf9427..c3899d8cd 100644
--- a/host/lib/rfnoc/wb_iface_adapter.hpp
+++ b/host/lib/rfnoc/wb_iface_adapter.hpp
@@ -1,18 +1,7 @@
 //
 // Copyright 2016 Ettus Research LLC
 //
-// 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 3 of the License, or
-// (at your option) any later version.
-//
-// 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, see <http://www.gnu.org/licenses/>.
+// SPDX-License-Identifier: GPL-3.0
 //
 
 #ifndef INCLUDED_RFNOC_WB_IFACE_ADAPTER_HPP
diff --git a/host/lib/rfnoc/xports.hpp b/host/lib/rfnoc/xports.hpp
index 7bd4f2fc8..0da544ab9 100644
--- a/host/lib/rfnoc/xports.hpp
+++ b/host/lib/rfnoc/xports.hpp
@@ -1,18 +1,7 @@
 //
 // Copyright 2016 Ettus Research LLC
 //
-// 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 3 of the License, or
-// (at your option) any later version.
-//
-// 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, see <http://www.gnu.org/licenses/>.
+// SPDX-License-Identifier: GPL-3.0
 //
 
 #include <uhd/types/sid.hpp>