xen: Add Build and Target architecture mapping

* Setup the XEN_TARGET_ARCH and XEN_COMPILE_ARCH based on the running
  environments TARGET_ARCH and BUILD_ARCH

Signed-off-by: Nathan Rossi <nathan.rossi@xilinx.com>

1 files changed, 18 insertions, 0 deletions

diff --git a/recipes-extended/xen/xen-arch.inc b/recipes-extended/xen/xen-arch.inc
new file mode 100644
index 00000000..bcf9f54b
--- /dev/null
+++ b/recipes-extended/xen/xen-arch.inc
@@ -0,0 +1,18 @@
+
+valid_xen_archs = " \
+        x86_64 x86_32 \
+        arm32 arm64 \
+        "
+
+def map_xen_arch(a, d):
+    import re
+    valid_archs = d.getVar('valid_xen_archs').split()
+
+    if   re.match("i.86", a):        return "x86_32"
+    elif re.match("x86.64", a):      return "x86_64"
+    elif re.match("arm.*", a):       return "arm32"
+    elif re.match("aarch64.*", a):   return "arm64"
+    elif a in valid_archs:           return a
+    else:
+        bb.error("cannot map '%s' to a xen architecture" % a)
+