stubs: Update monitor stubs for qemu-storage-daemon

Before we can add the monitor to qemu-storage-daemon, we need to add a
stubs for monitor_fdsets_cleanup().

We also need to make sure that stubs that are actually implemented in
the monitor core aren't linked to qemu-storage-daemon so that we don't
get linker errors because of duplicate symbols. This is achieved by
moving the stubs in question to a new file stubs/monitor-core.c.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20200224143008.13362-15-kwolf@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

stubs/Makefile.objs

@@ -19,6 +19,7 @@ stub-obj-y += machine-init-done.o
 stub-obj-y += migr-blocker.o
 stub-obj-y += change-state-handler.o
 stub-obj-y += monitor.o
+stub-obj-y += monitor-core.o
 stub-obj-y += notify-event.o
 stub-obj-y += qtest.o
 stub-obj-y += replay.o

stubs/monitor-core.c

+#include "qemu/osdep.h"
+#include "monitor/monitor.h"
+#include "qemu-common.h"
+#include "qapi/qapi-emit-events.h"
+
+__thread Monitor *cur_mon;
+
+void monitor_init_qmp(Chardev *chr, bool pretty)
+{
+}
+
+void qapi_event_emit(QAPIEvent event, QDict *qdict)
+{
+}
+
+int monitor_vprintf(Monitor *mon, const char *fmt, va_list ap)
+{
+    abort();
+}
+
+

stubs/monitor.c

 #include "qemu/osdep.h"
 #include "qapi/error.h"
-#include "qapi/qapi-emit-events.h"
 #include "monitor/monitor.h"
-
-__thread Monitor *cur_mon;
-
-int monitor_vprintf(Monitor *mon, const char *fmt, va_list ap)
-{
-    abort();
-}
+#include "../monitor/monitor-internal.h"
 
 int monitor_get_fd(Monitor *mon, const char *name, Error **errp)
 {
@@ -16,14 +9,10 @@ int monitor_get_fd(Monitor *mon, const char *name, Error **errp)
     return -1;
 }
 
-void monitor_init_qmp(Chardev *chr, bool pretty)
-{
-}
-
 void monitor_init_hmp(Chardev *chr, bool use_readline)
 {
 }
 
-void qapi_event_emit(QAPIEvent event, QDict *qdict)
+void monitor_fdsets_cleanup(void)
 {
 }