xen, xen-tools: add recipes for Xen 4.14

Add a versioned-suffix pair of recipes for Xen 4.14, allowing selection
of which Xen version to build via setting PREFERRED_VERSION.

4.14 is currently still pre-release, so the new recipes for it set
DEFAULT_PREFERENCE to -1, and the default for now remains the existing
stable version. Forward ports of patches needed for 4.14 are included.

Implementation note: since both this version and the git recipe are
built from git branches -- important for Xen since significant updates
are made available there inbetween point releases -- the recipe includes
'stable' as a string in PV so as to distinguish it from 'git' in the git
recipe, and thereby allow PREFERRED_VERSION to select the correct recipe
in the situation where both happen to be configured with the same XEN_REL.

Signed-off-by: Christopher Clark <christopher.clark6@baesystems.com>
Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>

recipes-extended/xen/files/0001-python-pygrub-pass-DISTUTILS-xen-4.14.patch

@@ -0,0 +1,66 @@
+From d79dcc2002008c58683de82f06c168d6eea57991 Mon Sep 17 00:00:00 2001
+From: Maciej Pijanowski <maciej.pijanowski@3mdeb.com>
+Date: Fri, 19 Oct 2018 11:01:37 +0200
+Subject: [PATCH] python,pygrub: pass DISTUTILS env vars as setup.py args
+
+Allow to respect the target install dir (PYTHON_SITEPACKAGES_DIR)
+as well as other parameters set by the OpenEmbedded build system.
+This is especially useful when the target libdir is not the default one
+(/usr/lib), but for example /usr/lib64.
+
+Signed-off-by: Maciej Pijanowski <maciej.pijanowski@3mdeb.com>
+
+Forward-ported to Xen 4.12.0
+Signed-off-by: Christopher Clark <christopher.clark6@baesystems.com>
+
+Modified to support pygrub installation with python 3
+Signed-off-by: Christopher Clark <christopher.clark6@baesystems.com>
+
+Forward-ported to Xen 4.14.0
+Signed-off-by: Christopher Clark <christopher.clark6@baesystems.com>
+diff --git a/tools/pygrub/Makefile b/tools/pygrub/Makefile
+index 3063c49..513314b 100644
+--- a/tools/pygrub/Makefile
++++ b/tools/pygrub/Makefile
+@@ -10,14 +10,17 @@ INSTALL_LOG = build/installed_files.txt
+ all: build
+ .PHONY: build
+ build:
+-	CC="$(CC)" CFLAGS="$(PY_CFLAGS)" LDFLAGS="$(PY_LDFLAGS)" $(PYTHON) setup.py build
++	CC="$(CC)" CFLAGS="$(PY_CFLAGS)" LDFLAGS="$(PY_LDFLAGS)" $(PYTHON) setup.py build $(DISTUTILS_BUILD_ARGS)
+ 
+ .PHONY: install
+ install: all
+ 	$(INSTALL_DIR) $(DESTDIR)/$(bindir)
+ 	CC="$(CC)" CFLAGS="$(PY_CFLAGS)" LDFLAGS="$(PY_LDFLAGS)" $(PYTHON) \
+ 		setup.py install --record $(INSTALL_LOG) $(PYTHON_PREFIX_ARG) \
+-		 --root="$(DESTDIR)" --install-scripts=$(LIBEXEC_BIN) --force
++		 --root="$(DESTDIR)" --install-scripts=$(LIBEXEC_BIN) --force \
++		 $(DISTUTILS_INSTALL_ARGS)
++	rm -f $(DESTDIR)/$(LIBEXEC_BIN)/pygrub
++	$(INSTALL_PYTHON_PROG) src/pygrub $(DESTDIR)/$(LIBEXEC_BIN)/pygrub
+ 	set -e; if [ $(bindir) != $(LIBEXEC_BIN) -a \
+ 	             "`readlink -f $(DESTDIR)/$(bindir)`" != \
+ 	             "`readlink -f $(LIBEXEC_BIN)`" ]; then \
+diff --git a/tools/python/Makefile b/tools/python/Makefile
+index 541858e..4d4a344 100644
+--- a/tools/python/Makefile
++++ b/tools/python/Makefile
+@@ -10,7 +10,7 @@ INSTALL_LOG = build/installed_files.txt
+ 
+ .PHONY: build
+ build:
+-	CC="$(CC)" CFLAGS="$(PY_CFLAGS)" $(PYTHON) setup.py build
++	CC="$(CC)" CFLAGS="$(PY_CFLAGS)" $(PYTHON) setup.py build $(DISTUTILS_BUILD_ARGS)
+ 
+ .PHONY: install
+ install:
+@@ -18,7 +18,7 @@ install:
+ 
+ 	CC="$(CC)" CFLAGS="$(PY_CFLAGS)" LDFLAGS="$(PY_LDFLAGS)" $(PYTHON) \
+ 		setup.py install --record $(INSTALL_LOG) $(PYTHON_PREFIX_ARG) \
+-		--root="$(DESTDIR)" --force
++		--root="$(DESTDIR)" --force $(DISTUTILS_INSTALL_ARGS)
+ 
+ 	$(INSTALL_PYTHON_PROG) scripts/convert-legacy-stream $(DESTDIR)$(LIBEXEC_BIN)
+ 	$(INSTALL_PYTHON_PROG) scripts/verify-stream-v2 $(DESTDIR)$(LIBEXEC_BIN)

recipes-extended/xen/files/0001-xen-build-temporarily-inhibit-Werror-4.14.patch

@@ -0,0 +1,26 @@
+From 9cff3bf8425ccc593825fcde8ca5eaa32a43d04d Mon Sep 17 00:00:00 2001
+From: Bruce Ashfield <bruce.ashfield@gmail.com>
+Date: Thu, 18 Jun 2020 09:05:22 -0400
+Subject: [PATCH] xen/build: temporarily inhibit Werror
+
+Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
+Rebased on Xen 4.14:
+Signed-off-by: Christopher Clark <christopher.w.clark@gmail.com>
+---
+ tools/libxl/Makefile | 2 +-
+ xen/Rules.mk         | 2 +-
+ 2 files changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/tools/libxl/Makefile b/tools/libxl/Makefile
+index 6da342ed61..c67560e269 100644
+--- a/tools/libxl/Makefile
++++ b/tools/libxl/Makefile
+@@ -11,7 +11,7 @@ MINOR = 0
+ XLUMAJOR = 4.14
+ XLUMINOR = 0
+ 
+-CFLAGS += -Werror -Wno-format-zero-length -Wmissing-declarations \
++CFLAGS += -Wno-format-zero-length -Wmissing-declarations \
+ 	-Wno-declaration-after-statement -Wformat-nonliteral
+ CFLAGS += -I. -fPIC
+ 

recipes-extended/xen/xen-tools_4.14.bb

@@ -0,0 +1,21 @@
+SRCREV ?= "02d69864b51a4302a148c28d6d391238a6778b4b"
+
+XEN_REL ?= "4.14"
+XEN_BRANCH ?= "stable-${XEN_REL}"
+
+SRC_URI = " \
+    git://xenbits.xen.org/xen.git;branch=${XEN_BRANCH} \
+    file://0001-python-pygrub-pass-DISTUTILS-xen-4.14.patch \
+    file://0001-xen-build-temporarily-inhibit-Werror-4.14.patch \
+    "
+
+LIC_FILES_CHKSUM ?= "file://COPYING;md5=419739e325a50f3d7b4501338e44a4e5"
+
+PV = "${XEN_REL}+stable${SRCPV}"
+
+S = "${WORKDIR}/git"
+
+DEFAULT_PREFERENCE ??= "-1"
+
+require xen.inc
+require xen-tools.inc

recipes-extended/xen/xen_4.14.bb

@@ -0,0 +1,20 @@
+SRCREV ?= "02d69864b51a4302a148c28d6d391238a6778b4b"
+
+XEN_REL ?= "4.14"
+XEN_BRANCH ?= "stable-${XEN_REL}"
+
+SRC_URI = " \
+    git://xenbits.xen.org/xen.git;branch=${XEN_BRANCH} \
+    file://xen-arm64-implement-atomic-fetch-add.patch \
+    "
+
+LIC_FILES_CHKSUM ?= "file://COPYING;md5=419739e325a50f3d7b4501338e44a4e5"
+
+PV = "${XEN_REL}+stable${SRCPV}"
+
+S = "${WORKDIR}/git"
+
+DEFAULT_PREFERENCE ??= "-1"
+
+require xen.inc
+require xen-hypervisor.inc