add back --use-system-qemu

Change-Id: Ia0b11954327407f576154552a96c406bd9e666ff

1 files changed, 80 insertions, 0 deletions

diff --git a/init_buildsystem b/init_buildsystem
index c7dc95a..750797d 100755
--- a/init_buildsystem
+++ b/init_buildsystem
@@ -430,6 +430,85 @@ validate_cache_file()
     fi
 }
 
+check_copy_qemu()
+{
+    local arch
+
+    for arch in $EMULATOR_DEVS; do
+	if test -e $BUILD_DIR/qemu-$arch; then
+	    return 0
+	fi
+    done
+    return 1
+}
+
+copy_qemu()
+{
+    local path dest
+
+    echo "copying qemu"
+
+    mkdir -p $BUILD_ROOT/usr/bin
+
+    if check_copy_qemu; then
+
+	for path in $BUILD_DIR/qemu-*; do
+	    if file $path | grep -q static; then
+		dest="$BUILD_ROOT/usr/bin/${path##*/}"
+		if [ -f "$path" -a ! -x "$dest" ]; then
+		    echo -n " $path"		# report copy
+		    #echo install -m755 "$path" "$dest"
+		    install -m755 "$path" "$dest"
+		fi
+	    fi
+	done
+
+    else
+
+	for path in /usr/bin/qemu-*; do
+	    if file $path | grep -q static; then
+		dest="$BUILD_ROOT/usr/bin/${path##*/}"
+		if [ -f "$path" -a ! -x "$dest" ]; then
+		    echo -n " $path"		# report copy
+		    #echo install -m755 "$path" "$dest"
+		    install -m755 "$path" "$dest"
+		fi
+	    fi
+	done
+
+	if [ -e /usr/sbin/qemu-binfmt-conf.sh \
+	    -a ! -e $BUILD_ROOT/usr/sbin/qemu-binfmt-conf.sh ]; then
+	    echo " /usr/sbin/qemu-binfmt-conf.sh"		# report copy
+	    mkdir -p $BUILD_ROOT/usr/sbin
+	    install -m755 /usr/sbin/qemu-binfmt-conf.sh $BUILD_ROOT/usr/sbin
+	fi
+
+    fi
+    echo ""
+
+    # Below for backward compatibility when /.build/initvm is not present
+
+    if [ -n "$PREPARE_VM" ]; then
+	if [ -x /bin/bash-static -a -x /bin/mount-static ]; then
+	    echo " /bin/bash-static /bin/mount-static"	# report copy
+	    mkdir -p $BUILD_ROOT/bin
+	    install -m755 /bin/bash-static $BUILD_ROOT/bin
+	    install -m755 /bin/mount-static $BUILD_ROOT/bin
+	fi
+    fi
+}
+
+check_binfmt_registered()
+{
+    local arch
+    for arch in $EMULATOR_DEVS; do
+	if test -e /proc/sys/fs/binfmt_misc/$arch; then
+	    return 0
+	fi
+    done
+    return 1
+}
+
 fail_exit()
 {
   cleanup_and_exit 1
@@ -607,6 +686,7 @@ else
     # register the QEMU emulator
     #
     if check_use_emulator; then
+	    [ -n "$USE_SYSTEM_QEMU" ] && copy_qemu
 	    echo "registering binfmt handlers for VM"
 
 	    if [ -x "$BUILD_DIR/initvm.`uname -m`" -a -e "$BUILD_DIR/qemu-reg" ]; then