[xen master] Rework COPYING installed in /usr/include/xen/, due to several licences

[patchbot@xxxxxxx]

commit 4ea75e9a9058db43a495f646132734b51d438ec1
Author:     Anthony PERARD <anthony.perard@xxxxxxxxxx>
AuthorDate: Thu Nov 3 11:52:03 2022 +0000
Commit:     Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
CommitDate: Wed Nov 16 16:15:23 2022 +0000

    Rework COPYING installed in /usr/include/xen/, due to several licences
    
    The notice in the COPYING file in "xen/include/public/COPYING" doesn't
    really apply to the files that ultimately are been install at
    "/usr/include/xen". The issue are headers in the "sys/" subdirectory
    that comes from other projects such as Linux or FreeBSD.
    
    The main issue is that there are two headers that have a different
    licence than the MIT licence:
    
    - xen-sys/Linux/gntalloc.h (installed as "sys/gntalloc.h") is public
      domain.
    - xen-sys/FreeBSD/gntdev.h (installed as "sys/gntdev.h") is BSD-2.
    
    To clarify this, we'll install a COPYING file with a different notice.
    
    Reported-by: Andrew Cooper <Andrew.Cooper3@xxxxxxxxxx>
    Signed-off-by: Anthony PERARD <anthony.perard@xxxxxxxxxx>
    Acked-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Release-acked-by: Henry Wang <Henry.Wang@xxxxxxx>
---
 .gitignore                   |  1 -
 tools/include/Makefile       |  1 -
 tools/include/xen/.gitignore |  2 ++
 tools/include/xen/COPYING    | 26 ++++++++++++++++++++++++++
 4 files changed, 28 insertions(+), 2 deletions(-)

diff --git a/.gitignore b/.gitignore
index 418bdfaebf..ea3243af9d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -194,7 +194,6 @@ tools/hotplug/NetBSD/rc.d/xencommons
 tools/hotplug/NetBSD/rc.d/xendriverdomain
 tools/include/acpi
 tools/include/_libxl*.h
-tools/include/xen/*
 tools/include/xen-xsm/*
 tools/include/xen-foreign/*.(c|h|size)
 tools/include/xen-foreign/checker
diff --git a/tools/include/Makefile b/tools/include/Makefile
index 81c3d09039..f838171e8c 100644
--- a/tools/include/Makefile
+++ b/tools/include/Makefile
@@ -24,7 +24,6 @@ xen-foreign:
 xen-dir:
        mkdir -p xen/libelf acpi
        find xen/ acpi/ -type l -exec rm '{}' +
-       ln -s $(XEN_ROOT)/xen/include/public/COPYING xen/
        ln -s $(XEN_ROOT)/xen/include/public/*.h xen/
        ln -s $(XEN_ROOT)/xen/include/public/*/ xen/
        ln -s ../xen-sys/$(XEN_OS) xen/sys
diff --git a/tools/include/xen/.gitignore b/tools/include/xen/.gitignore
new file mode 100644
index 0000000000..0628b2daf1
--- /dev/null
+++ b/tools/include/xen/.gitignore
@@ -0,0 +1,2 @@
+*
+!COPYING
diff --git a/tools/include/xen/COPYING b/tools/include/xen/COPYING
new file mode 100644
index 0000000000..fe3f9b7557
--- /dev/null
+++ b/tools/include/xen/COPYING
@@ -0,0 +1,26 @@
+XEN NOTICE
+==========
+
+This licence applies to all files within this subdirectory ("/usr/include/xen")
+with the exception of "sys/" which may include headers under different
+licences.
+
+=====================================================================
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to
+deal in the Software without restriction, including without limitation the
+rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+sell copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+DEALINGS IN THE SOFTWARE.
--
generated by git-patchbot for /home/xen/git/xen.git#master