sysemu: Move the VMChangeStateEntry typedef to qemu/typedefs.h

In my "build everything" tree, changing sysemu/sysemu.h triggers a
recompile of some 1800 out of 6600 objects (not counting tests and
objects that don't depend on qemu/osdep.h, down from 5400 due to the
previous commit).

Several headers include sysemu/sysemu.h just to get typedef
VMChangeStateEntry.  Move it from sysemu/sysemu.h to qemu/typedefs.h.
Spell its structure tag the same while there.  Drop the now
superfluous includes of sysemu/sysemu.h from headers.

Touching sysemu/sysemu.h now recompiles some 1100 objects.
qemu/uuid.h also drops from 1800 to 1100, and
qapi/qapi-types-run-state.h from 5000 to 4400.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20190812052359.30071-29-armbru@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>

6 files changed, 3 insertions, 5 deletions

diff --git a/include/hw/ide/internal.h b/include/hw/ide/internal.h
index c6954c1d56..52ec197da0 100644
--- a/include/hw/ide/internal.h
+++ b/include/hw/ide/internal.h
@@ -6,11 +6,12 @@
  * only files in hw/ide/ are supposed to include this file.
  * non-internal declarations are in hw/ide.h
  */
+
+#include "qapi/qapi-types-run-state.h"
 #include "hw/ide.h"
 #include "hw/irq.h"
 #include "hw/isa/isa.h"
 #include "sysemu/dma.h"
-#include "sysemu/sysemu.h"
 #include "hw/block/block.h"
 #include "scsi/constants.h"
 
diff --git a/include/hw/ppc/spapr_xive.h b/include/hw/ppc/spapr_xive.h
index a39e672f27..bfd40f01d8 100644
--- a/include/hw/ppc/spapr_xive.h
+++ b/include/hw/ppc/spapr_xive.h
@@ -12,7 +12,6 @@
 
 #include "hw/ppc/spapr_irq.h"
 #include "hw/ppc/xive.h"
-#include "sysemu/sysemu.h"
 
 #define TYPE_SPAPR_XIVE "spapr-xive"
 #define SPAPR_XIVE(obj) OBJECT_CHECK(SpaprXive, (obj), TYPE_SPAPR_XIVE)
diff --git a/include/hw/scsi/scsi.h b/include/hw/scsi/scsi.h
index 2bfaad0fe9..d77a92361b 100644
--- a/include/hw/scsi/scsi.h
+++ b/include/hw/scsi/scsi.h
@@ -4,7 +4,6 @@
 #include "block/aio.h"
 #include "hw/block/block.h"
 #include "hw/qdev-core.h"
-#include "sysemu/sysemu.h"
 #include "scsi/utils.h"
 #include "qemu/notify.h"
 
diff --git a/include/hw/virtio/virtio.h b/include/hw/virtio/virtio.h
index df40a46d60..48e8d04ff6 100644
--- a/include/hw/virtio/virtio.h
+++ b/include/hw/virtio/virtio.h
@@ -17,7 +17,6 @@
 #include "exec/memory.h"
 #include "hw/qdev-core.h"
 #include "net/net.h"
-#include "sysemu/sysemu.h"
 #include "migration/vmstate.h"
 #include "qemu/event_notifier.h"
 #include "standard-headers/linux/virtio_config.h"
diff --git a/include/qemu/typedefs.h b/include/qemu/typedefs.h
index 7fe5973312..375770a80f 100644
--- a/include/qemu/typedefs.h
+++ b/include/qemu/typedefs.h
@@ -118,6 +118,7 @@ typedef struct SHPCDevice SHPCDevice;
 typedef struct SSIBus SSIBus;
 typedef struct VirtIODevice VirtIODevice;
 typedef struct Visitor Visitor;
+typedef struct VMChangeStateEntry VMChangeStateEntry;
 typedef struct VMStateDescription VMStateDescription;
 
 /*
diff --git a/include/sysemu/sysemu.h b/include/sysemu/sysemu.h
index 908f158677..7606eaaf2a 100644
--- a/include/sysemu/sysemu.h
+++ b/include/sysemu/sysemu.h
@@ -22,7 +22,6 @@ void runstate_set(RunState new_state);
 int runstate_is_running(void);
 bool runstate_needs_reset(void);
 bool runstate_store(char *str, size_t size);
-typedef struct vm_change_state_entry VMChangeStateEntry;
 typedef void VMChangeStateHandler(void *opaque, int running, RunState state);
 
 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,