From: Michael Jeanson <mjeanson@efficios.com>
Date: Thu, 6 Jul 2023 15:35:11 +0000 (-0400)
Subject: Complete REUSE support
X-Git-Url: http://git.lttng.org/?p=userspace-rcu.git;a=commitdiff_plain;h=29b2b11ef53eee2848dd06fba8c49003e17c539f

Complete REUSE support

The SPDX identifiers [1] are a legally binding shorthand, which can be
used instead of the full boiler plate text. This is the final step
towards implementing the full REUSE spec [2] to help with copyright and
licensing audits and compliance.

This will reduce a lot a manual work required for the licensing audit
required in Debian on each update.

[1] https://spdx.org/ids-how
[2] https://reuse.software/tutorial/

Change-Id: Ia014969f407043d4ac48f4a8f3639c860ca2aafb
Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
---

diff --git a/LICENSE b/LICENSE
deleted file mode 100644
index 95c7287..0000000
--- a/LICENSE
+++ /dev/null
@@ -1,59 +0,0 @@
-Userspace RCU library licensing
-Mathieu Desnoyers
-September 3, 2012
-
-
-* LGPLv2.1
-
-The library part is distributed under LGPLv2.1 or later. See
-LICENSES/LGPL-2.1-or-later.txt for license details. Refer to the individual
-file headers for details.
-
-LGPL-compatible source code can statically use the library header using :
-
-#define _LGPL_SOURCE
-#include <urcu.h>
-
-Dynamic-only linking with the LGPL library is used if _LGPL_SOURCE is not
-defined. It permits relinking with newer versions of the library, which is
-required by the LGPL license.
-
-See lgpl-relicensing.md for details.
-
-
-* Boehm-GC (MIT-style) license :
-
-xchg() primitive has been rewritten from scratch starting from atomic_ops 1.2
-which has a MIT-style license that is intended to allow use in both free and
-proprietary software:
-
-	http://www.hpl.hp.com/research/linux/atomic_ops/LICENSING.txt
-	http://www.hpl.hp.com/personal/Hans_Boehm/gc/gc_source/
-
-This license applies to:
-
-uatomic/gcc.h
-uatomic/unknown.h
-uatomic/generic.h
-uatomic/sparc64.h
-uatomic/arm.h
-uatomic/ppc.h
-uatomic/x86.h
-uatomic.h
-
-MIT/X11 (BSD like) license apply to:
-
-compiler.h
-arch/s390.h
-uatomic/alpha.h
-uatomic/mips.h
-uatomic/nios2.h
-uatomic/s390.h
-system.h
-
-
-* GPLv2
-
-Library test code is distributed under the GPLv2 license. See
-LICENSES/GPL-2.0-only.txt for license details. See headers of individual files
-under tests/ for details.
diff --git a/LICENSE.md b/LICENSE.md
new file mode 100644
index 0000000..6a5d204
--- /dev/null
+++ b/LICENSE.md
@@ -0,0 +1,64 @@
+# Userspace RCU library licensing
+
+This project is compliant with the [REUSE](https://reuse.software/spec/)
+specification, each file contains [SPDX](https://spdx.org/specifications) tags,
+the full licenses can be found in the `LICENSES/` directory.
+
+
+## Library code
+
+The library part is distributed under `LGPL-2.1-or-later`. See
+`LICENSES/LGPL-2.1-or-later.txt` for license details. Refer to the individual
+file headers for details.
+
+LGPL-compatible source code can statically use the library header using :
+
+````
+#define _LGPL_SOURCE
+#include <urcu.h>
+````
+
+Dynamic-only linking with the LGPL library is used if `_LGPL_SOURCE` is not
+defined. It permits relinking with newer versions of the library, which is
+required by the LGPL license.
+
+See `lgpl-relicensing.md` for details.
+
+
+## Headers
+
+Most headers are also distributed under `LGPL-2.1-or-later`, some include code
+from `atomic_ops` and are distributed under `Boehm-GC` and some others are
+distributed under `MIT`. Refer to the individual file headers for details.
+
+xchg() primitive has been rewritten from scratch starting from `atomic_ops 1.2`
+which has a MIT-style license that is intended to allow use in both free and
+proprietary software:
+
+````
+http://www.hpl.hp.com/research/linux/atomic_ops/LICENSING.txt
+http://www.hpl.hp.com/personal/Hans_Boehm/gc/gc_source/
+````
+
+
+## Tests
+
+Library test code is distributed under the `GPL-2.0-only` license. See
+`LICENSES/GPL-2.0-only.txt` for license details. See headers of individual
+files under `tests/` for details.
+
+
+## Documentation
+
+The documentation is distributed under the `CC-BY-4.0` license.
+
+
+## Build system
+
+Build system related files are mostly distributed under the `MIT` license. See
+headers of individual files for details.
+
+
+## Generated data files
+
+Generated data files are distributed under the `CC-1.0` license.
diff --git a/Makefile.am b/Makefile.am
index ee64c83..539a2ca 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -6,8 +6,9 @@ ACLOCAL_AMFLAGS=-I m4
 
 SUBDIRS = include src doc tests extras
 
-dist_doc_DATA = LICENSE \
-		README.md
+dist_doc_DATA = \
+	LICENSE.md \
+	README.md
 
 EXTRA_DIST = \
 	CodingStyle.md \