Adding upstream version 14.2.21.upstream/14.2.21upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 76 insertions, 0 deletions

diff --git a/src/spdk/dpdk/buildtools/relpath.sh b/src/spdk/dpdk/buildtools/relpath.sh
new file mode 100755
index 00000000..02953837
--- /dev/null
+++ b/src/spdk/dpdk/buildtools/relpath.sh
@@ -0,0 +1,76 @@
+#!/bin/sh
+# SPDX-License-Identifier: BSD-3-Clause
+# Copyright(c) 2010-2014 Intel Corporation
+
+#
+# print the relative path of $1 from $2 directory
+# $1 and $2 MUST be absolute paths
+#
+
+if [ $# -ne 2 ]; then
+	echo "Bad arguments"
+	echo "Usage:"
+	echo "  $0 path1 path2"
+	exit 1
+fi
+
+# get the real absolute path, derefencing symlinks
+ABS1="$(dirname $(readlink -f $1))/$(basename $1)"
+ABS2=$(readlink -f $2)
+
+# remove leading slash
+REL1=${ABS1#/}
+REL2=${ABS2#/}
+
+left1=${REL1%%/*}
+right1=${REL1#*/}
+prev_right1=$REL1
+prev_left1=
+
+left2=${REL2%%/*}
+right2=${REL2#*/}
+prev_right2=$REL2
+prev_left2=
+
+prefix=
+
+while [ "${right1}" != "" -a "${right2}" != "" ]; do
+
+	if [ "$left1" != "$left2" ]; then
+		break
+	fi
+
+	prev_left1=$left1
+	left1=$left1/${right1%%/*}
+	prev_right1=$right1
+	right1=${prev_right1#*/}
+	if [ "$right1" = "$prev_right1" ]; then
+		right1=""
+	fi
+
+	prev_left2=$left2
+	left2=$left2/${right2%%/*}
+	prev_right2=$right2
+	right2=${prev_right2#*/}
+	if [ "$right2" = "$prev_right2" ]; then
+		right2=""
+	fi
+done
+
+if [ "${left1}" != "${left2}" ]; then
+	right2=${prev_right2}
+	right1=${prev_right1}
+fi
+
+while [ "${right2}" != "" ]; do
+	prefix=${prefix}../
+	prev_right2=$right2
+	right2=${right2#*/}
+	if [ "$right2" = "$prev_right2" ]; then
+		right2=""
+	fi
+done
+
+echo ${prefix}${right1}
+
+exit 0