Introduce Virtio-loopback epsilon release:

Epsilon release introduces a new compatibility layer which make virtio-loopback
design to work with QEMU and rust-vmm vhost-user backend without require any
changes.

Signed-off-by: Timos Ampelikiotis <t.ampelikiotis@virtualopensystems.com>
Change-Id: I52e57563e08a7d0bdc002f8e928ee61ba0c53dd9

1 files changed, 68 insertions, 0 deletions

diff --git a/scripts/feature_to_c.sh b/scripts/feature_to_c.sh
new file mode 100644
index 000000000..b1169899c
--- /dev/null
+++ b/scripts/feature_to_c.sh
@@ -0,0 +1,68 @@
+#!/bin/sh
+
+# Convert text files to compilable C arrays.
+#
+# Copyright (C) 2007 Free Software Foundation, Inc.
+#
+# This file is part of GDB.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, see <http://www.gnu.org/licenses/>.
+
+if test -z "$1"; then
+  echo "Usage: $0 INPUTFILE..."
+  exit 1
+fi
+
+for input; do
+  arrayname=xml_feature_$(echo $input | sed 's,.*/,,; s/[-.]/_/g')
+
+  ${AWK:-awk} 'BEGIN { n = 0
+      printf "#include \"qemu/osdep.h\"\n"
+      print "static const char '$arrayname'[] = {"
+      for (i = 0; i < 255; i++)
+        _ord_[sprintf("%c", i)] = i
+    } {
+      split($0, line, "");
+      printf "  "
+      for (i = 1; i <= length($0); i++) {
+        c = line[i]
+        if (c == "'\''") {
+          printf "'\''\\'\'''\'', "
+        } else if (c == "\\") {
+          printf "'\''\\\\'\'', "
+        } else if (_ord_[c] >= 32 && _ord_[c] < 127) {
+	  printf "'\''%s'\'', ", c
+        } else {
+          printf "'\''\\%03o'\'', ", _ord_[c]
+        }
+        if (i % 10 == 0)
+          printf "\n   "
+      }
+      printf "'\''\\n'\'', \n"
+    } END {
+      print "  0 };"
+    }' < $input
+done
+
+echo
+echo "const char *const xml_builtin[][2] = {"
+
+for input; do
+  basename=$(echo $input | sed 's,.*/,,')
+  arrayname=xml_feature_$(echo $input | sed 's,.*/,,; s/[-.]/_/g')
+  echo "  { \"$basename\", $arrayname },"
+done
+
+echo "  { (char *)0, (char *)0 }"
+echo "};"