chardev: Extract system emulation specific code

Split out code only used during system emulation,
to reduce code pulled in user emulation and tools.

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200423202112.644-6-philmd@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>

chardev/Makefile.objs

@@ -1,4 +1,5 @@
 chardev-obj-y += char.o
+chardev-obj-$(CONFIG_SOFTMMU) += chardev-sysemu.o
 chardev-obj-$(CONFIG_WIN32) += char-console.o
 chardev-obj-$(CONFIG_POSIX) += char-fd.o
 chardev-obj-y += char-fe.o

chardev/char.c

@@ -45,7 +45,7 @@
 /***********************************************************/
 /* character device */
 
-static Object *get_chardevs_root(void)
+Object *get_chardevs_root(void)
 {
     return container_get(object_get_root(), "/chardevs");
 }
@@ -305,33 +305,6 @@ static const TypeInfo char_type_info = {
     .class_init = char_class_init,
 };
 
-static int chardev_machine_done_notify_one(Object *child, void *opaque)
-{
-    Chardev *chr = (Chardev *)child;
-    ChardevClass *class = CHARDEV_GET_CLASS(chr);
-
-    if (class->chr_machine_done) {
-        return class->chr_machine_done(chr);
-    }
-
-    return 0;
-}
-
-static void chardev_machine_done_hook(Notifier *notifier, void *unused)
-{
-    int ret = object_child_foreach(get_chardevs_root(),
-                                   chardev_machine_done_notify_one, NULL);
-
-    if (ret) {
-        error_report("Failed to call chardev machine_done hooks");
-        exit(1);
-    }
-}
-
-static Notifier chardev_machine_done_notify = {
-    .notify = chardev_machine_done_hook,
-};
-
 static bool qemu_chr_is_busy(Chardev *s)
 {
     if (CHARDEV_IS_MUX(s)) {
@@ -1198,12 +1171,6 @@ void qemu_chr_cleanup(void)
 static void register_types(void)
 {
     type_register_static(&char_type_info);
-
-    /* this must be done after machine init, since we register FEs with muxes
-     * as part of realize functions like serial_isa_realizefn when -nographic
-     * is specified
-     */
-    qemu_add_machine_init_done_notifier(&chardev_machine_done_notify);
 }
 
 type_init(register_types);

chardev/chardev-internal.h

@@ -26,6 +26,7 @@
 
 #include "chardev/char.h"
 #include "chardev/char-fe.h"
+#include "qom/object.h"
 
 #define MAX_MUX 4
 #define MUX_BUFFER_SIZE 32 /* Must be a power of 2.  */
@@ -59,4 +60,6 @@ typedef struct MuxChardev {
 void mux_set_focus(Chardev *chr, int focus);
 void mux_chr_send_all_event(Chardev *chr, QEMUChrEvent event);
 
+Object *get_chardevs_root(void);
+
 #endif /* CHAR_MUX_H */

chardev/chardev-sysemu.c

@@ -0,0 +1,69 @@
+/*
+ * QEMU System Emulator
+ *
+ * Copyright (c) 2003-2008 Fabrice Bellard
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "qemu/osdep.h"
+#include "sysemu/sysemu.h"
+#include "chardev/char.h"
+#include "qemu/error-report.h"
+#include "chardev-internal.h"
+
+static int chardev_machine_done_notify_one(Object *child, void *opaque)
+{
+    Chardev *chr = (Chardev *)child;
+    ChardevClass *class = CHARDEV_GET_CLASS(chr);
+
+    if (class->chr_machine_done) {
+        return class->chr_machine_done(chr);
+    }
+
+    return 0;
+}
+
+static void chardev_machine_done_hook(Notifier *notifier, void *unused)
+{
+    int ret = object_child_foreach(get_chardevs_root(),
+                                   chardev_machine_done_notify_one, NULL);
+
+    if (ret) {
+        error_report("Failed to call chardev machine_done hooks");
+        exit(1);
+    }
+}
+
+
+static Notifier chardev_machine_done_notify = {
+    .notify = chardev_machine_done_hook,
+};
+
+static void register_types(void)
+{
+    /*
+     * This must be done after machine init, since we register FEs with muxes
+     * as part of realize functions like serial_isa_realizefn when -nographic
+     * is specified.
+     */
+    qemu_add_machine_init_done_notifier(&chardev_machine_done_notify);
+}
+
+type_init(register_types);