sysemu: Split sysemu/runstate.h off sysemu/sysemu.h

sysemu/sysemu.h is a rather unfocused dumping ground for stuff related
to the system-emulator.  Evidence:

* It's included widely: in my "build everything" tree, changing
  sysemu/sysemu.h still triggers a recompile of some 1100 out of 6600
  objects (not counting tests and objects that don't depend on
  qemu/osdep.h, down from 5400 due to the previous two commits).

* It pulls in more than a dozen additional headers.

Split stuff related to run state management into its own header
sysemu/runstate.h.

Touching sysemu/sysemu.h now recompiles some 850 objects.  qemu/uuid.h
also drops from 1100 to 850, and qapi/qapi-types-run-state.h from 4400
to 4200.  Touching new sysemu/runstate.h recompiles some 500 objects.

Since I'm touching MAINTAINERS to add sysemu/runstate.h anyway, also
add qemu/main-loop.h.

Suggested-by: Paolo Bonzini <[email protected]>
Signed-off-by: Markus Armbruster <[email protected]>
Message-Id: <[email protected]>
Reviewed-by: Alex Bennée <[email protected]>
[Unbreak OS-X build]

Author: Markus Armbruster

MAINTAINERS

@@ -1924,6 +1924,8 @@ Main loop
 M: Paolo Bonzini <[email protected]>
 S: Maintained
 F: cpus.c
+F: include/qemu/main-loop.h
+F: include/sysemu/runstate.h
 F: util/main-loop.c
 F: util/qemu-timer.c
 F: vl.c

accel/kvm/kvm-all.c

@@ -28,6 +28,7 @@
 #include "hw/s390x/adapter.h"
 #include "exec/gdbstub.h"
 #include "sysemu/kvm_int.h"
+#include "sysemu/runstate.h"
 #include "sysemu/cpus.h"
 #include "sysemu/sysemu.h"
 #include "qemu/bswap.h"

audio/audio.c

@@ -30,10 +30,10 @@
 #include "qapi/error.h"
 #include "qapi/qobject-input-visitor.h"
 #include "qapi/qapi-visit-audio.h"
-#include "sysemu/sysemu.h"
 #include "qemu/cutils.h"
 #include "qemu/module.h"
 #include "sysemu/replay.h"
+#include "sysemu/runstate.h"
 #include "trace.h"
 
 #define AUDIO_CAP "audio"

block/block-backend.c

@@ -17,7 +17,7 @@
 #include "block/throttle-groups.h"
 #include "hw/qdev-core.h"
 #include "sysemu/blockdev.h"
-#include "sysemu/sysemu.h"
+#include "sysemu/runstate.h"
 #include "qapi/error.h"
 #include "qapi/qapi-events-block.h"
 #include "qemu/id.h"

blockdev.c

@@ -58,6 +58,7 @@
 #include "block/trace.h"
 #include "sysemu/arch_init.h"
 #include "sysemu/qtest.h"
+#include "sysemu/runstate.h"
 #include "qemu/cutils.h"
 #include "qemu/help_option.h"
 #include "qemu/main-loop.h"

cpus.c

@@ -41,7 +41,6 @@
 #include "sysemu/kvm.h"
 #include "sysemu/hax.h"
 #include "sysemu/hvf.h"
-#include "sysemu/sysemu.h"
 #include "sysemu/whpx.h"
 #include "exec/exec-all.h"
 
@@ -56,6 +55,7 @@
 #include "tcg.h"
 #include "hw/nmi.h"
 #include "sysemu/replay.h"
+#include "sysemu/runstate.h"
 #include "hw/boards.h"
 #include "hw/hw.h"
 

dump/dump.c

@@ -20,8 +20,8 @@
 #include "monitor/monitor.h"
 #include "sysemu/kvm.h"
 #include "sysemu/dump.h"
-#include "sysemu/sysemu.h"
 #include "sysemu/memory_mapping.h"
+#include "sysemu/runstate.h"
 #include "sysemu/cpus.h"
 #include "qapi/error.h"
 #include "qapi/qapi-commands-dump.h"

gdbstub.c

@@ -48,6 +48,7 @@
 #include "qemu/sockets.h"
 #include "sysemu/hw_accel.h"
 #include "sysemu/kvm.h"
+#include "sysemu/runstate.h"
 #include "hw/semihosting/semihost.h"
 #include "exec/exec-all.h"
 

hw/acpi/core.c

@@ -20,7 +20,6 @@
  */
 
 #include "qemu/osdep.h"
-#include "sysemu/sysemu.h"
 #include "hw/irq.h"
 #include "hw/acpi/acpi.h"
 #include "hw/nvram/fw_cfg.h"
@@ -32,6 +31,7 @@
 #include "qemu/error-report.h"
 #include "qemu/module.h"
 #include "qemu/option.h"
+#include "sysemu/runstate.h"
 
 struct acpi_table_header {
     uint16_t _length;         /* our length, not actual part of the hdr */

hw/acpi/ich9.c

@@ -33,7 +33,7 @@
 #include "qemu/timer.h"
 #include "qom/cpu.h"
 #include "sysemu/reset.h"
-#include "sysemu/sysemu.h"
+#include "sysemu/runstate.h"
 #include "hw/acpi/acpi.h"
 #include "hw/acpi/tco.h"
 #include "exec/address-spaces.h"