Import QEMU upstream snapshot d2e570c

Upstream: https://gitlab.com/qemu-project/qemu.git

Upstream-Commit: d2e570cc0f97b936902a5b1b86b73c0f5998b475

scripts/hxtool

@@ -0,0 +1,57 @@
+#!/bin/sh
+
+print_if_not_rst()
+{
+    test $in_rst -eq 0 && printf "%s\n" "$str"
+}
+
+hxtoh()
+{
+    in_rst=0
+    # .name for HMP
+    seen_name=0
+    while read -r str; do
+        case $str in
+            HXCOMM*)
+            ;;
+            SRST*)
+              if [ $in_rst -eq 1 ]
+              then
+                echo "Error: SRST inside another RST" >&2
+                exit 1
+              fi
+              # consume the name
+              seen_name=0
+              in_rst=1
+            ;;
+            ERST*)
+              if [ $in_rst -eq 0 ]
+              then
+                echo "Error: ERST already outside RST" >&2
+                exit 1
+              fi
+              in_rst=0
+            ;;
+            # Note the space at the start - we need to exclude something.name
+            ( .name*)
+              if [ $seen_name -eq 1 ]
+              then
+                echo "Error: Seen another .name, maybe missing docs?" >&2
+                exit 1
+              fi
+              seen_name=1
+              print_if_not_rst
+            ;;
+            *)
+            print_if_not_rst
+            ;;
+        esac
+    done
+}
+
+case "$1" in
+"-h") hxtoh ;;
+*) exit 1 ;;
+esac < "$2"
+
+exit 0