From: Frank Rowand <frank.rowand@xxxxxxxxxxx>
A slightly paranoid wrapper around overlay_convert. Verifies that
converted dts file is equivalent to original dts file.
Signed-off-by: Frank Rowand <frank.rowand@xxxxxxxxxxx>
---
overlay_convert_old_to_new | 144 +++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 144 insertions(+)
create mode 100755 overlay_convert_old_to_new
diff --git a/overlay_convert_old_to_new b/overlay_convert_old_to_new
new file mode 100755
index 000000000000..bc26c57d4dc1
--- /dev/null
+++ b/overlay_convert_old_to_new
@@ -0,0 +1,144 @@
+#! /bin/bash
+
+#_______________________________________________________________________________
+
+
+function usage
+{
+echo "" >&2
+echo "usage:" >&2
+echo " `basename $0` -h | -help | --help" >&2
+echo " `basename $0` [options] OLD_DTS NEW_DTS" >&2
+echo "" >&2
+echo " Convert OLD_DTS from old overlay style to new overlay style" >&2
+echo " using syntactic sugar." >&2
+echo "" >&2
+echo " Options:" >&2
+echo " -h synonym for --help" >&2
+echo " --help print this message" >&2
+echo " -o synonym for --overwrite" >&2
+echo " --overwrite overwrite NEW_DTS if it already exists" >&2
+echo "" >&2
+echo " The early patches to dtc to support overlays required 'fragment'" >&2
+echo " and '__overlay__' nodes in the .dts source. Later patches to dtc" >&2
+echo " will not require these nodes (and may possibly disallow them)." >&2
+echo " The new overlay style is expected to be the preferrred form." >&2
+echo "" >&2
+echo " Will not overwrite NEW_DTS if it already exists." >&2
+echo "" >&2
+echo " Exit status is:" >&2
+echo " 0 success" >&2
+echo " 1 general error" >&2
+echo " 2 NEW_DTS already exists" >&2
+echo " 3 conversion problem" >&2
+echo " 4 'dtc -@ -O dts OLD_DTS' is different than 'dtc -@ -O dts NEW_DTS'" >&2
+echo "" >&2
+}
+
+
+unset new_dts
+unset old_dts
+unset overwrite
+
+while [[ ($# -gt 0) ]] ; do
+
+ case $1 in
+
+ -o | --overwrite )
+ shift
+ overwrite=1
+ ;;
+
+ -h | -help | --help )
+ shift
+ help=1
+ ;;
+
+ * )
+ if [[ "${old_dts}" != "" ]] ; then
+
+ if [[ "${new_dts}" != "" ]] ; then
+ echo "" >&2
+ echo "ERROR: too many arguments" >&2
+ echo "" >&2
+ exit 1
+ fi
+
+ new_dts=$1
+ shift
+ else
+ old_dts=$1
+ shift
+ fi
+ ;;
+
+ esac
+done
+
+
+if [[ (${help} == 1) ]] ; then
+ usage
+ exit 1
+fi
+
+
+#_______________________________________________________________________________
+
+if [[ -f ${new_dts} && overwrite -eq 0 ]] ; then
+
+ echo "" >&2
+ echo "ERROR: file '${new_dts}' already exists" >&2
+ echo "" >&2
+
+ exit 2
+fi
+
+
+#_______________________________________________________________________________
+
+
+if which overlay_convert >/dev/null ; then
+ OVERLAY_CONVERT=overlay_convert
+elif which ./overlay_convert >/dev/null ; then
+ OVERLAY_CONVERT=./overlay_convert
+else
+ echo "" >&2
+ echo "ERROR: overlay_convert not found or not executable" >&2
+ echo "" >&2
+
+ exit 1
+fi
+
+if ! ${OVERLAY_CONVERT} ${old_dts} > ${new_dts} ; then
+
+ echo "" >&2
+ echo "ERROR: unable to convert ${old_dts}" >&2
+ echo "" >&2
+
+ rm ${new_dts}
+
+ exit 3
+fi
+
+
+if ! which dtc >/dev/null ; then
+
+ echo "" >&2
+ echo "ERROR: dtc not found or not executable" >&2
+ echo " add the location of dtc to \$PATH" >&2
+ echo "" >&2
+
+ exit 1
+fi
+
+if ! diff -q \
+ <(dtc -@ -O dts ${old_dts} 2>/dev/null) \
+ <(dtc -@ -O dts ${new_dts} 2>/dev/null) ; then
+
+ echo "" >&2
+ echo "ERROR: ${new_dts} is not equivalent to ${old_dts}" >&2
+ echo "" >&2
+
+ exit 4
+fi
+
--
1.9.1
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