build: move target-independent hw/ objects to nested Makefile.objs

This patch starts converting the hw/ directory.  Some files in hw/
are compiled once, some twice (32-/64-bit), some once per target.
Each category is moved in a separate patch.

After this patch, the files that are compiled once will show the
same hierarchy in the build tree as they do in the source tree,
for example hw/qdev.o instead of just qdev.o.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

Makefile

@@ -120,7 +120,7 @@ QEMU_CFLAGS += -I$(SRC_PATH)/include
 
 ui/cocoa.o: ui/cocoa.m
 
-ui/sdl.o audio/sdlaudio.o ui/sdl_zoom.o baum.o: QEMU_CFLAGS += $(SDL_CFLAGS)
+ui/sdl.o audio/sdlaudio.o ui/sdl_zoom.o hw/baum.o: QEMU_CFLAGS += $(SDL_CFLAGS)
 
 ui/vnc.o: QEMU_CFLAGS += $(VNC_TLS_CFLAGS)
 
@@ -214,6 +214,7 @@ clean:
 	rm -Rf .libs
 	rm -f slirp/*.o slirp/*.d audio/*.o audio/*.d block/*.o block/*.d net/*.o net/*.d fsdev/*.o fsdev/*.d ui/*.o ui/*.d qapi/*.o qapi/*.d qga/*.o qga/*.d
 	rm -f qom/*.o qom/*.d
+	rm -f usb/*.o usb/*.d hw/*.o hw/*.d
 	rm -f qemu-img-cmds.h
 	rm -f trace/*.o trace/*.d
 	rm -f trace-dtrace.dtrace trace-dtrace.dtrace-timestamp
@@ -400,4 +401,5 @@ tar:
 Makefile: $(GENERATED_HEADERS)
 
 # Include automatically generated dependency files
--include $(wildcard *.d audio/*.d slirp/*.d block/*.d net/*.d ui/*.d qapi/*.d qga/*.d)
+-include $(wildcard *.d audio/*.d slirp/*.d block/*.d net/*.d ui/*.d qapi/*.d)
+-include $(wildcard qga/*.d hw/*.d hw/usb/*.d)

Makefile.objs

@@ -70,50 +70,22 @@ common-obj-$(CONFIG_LINUX) += fsdev/
 extra-obj-$(CONFIG_LINUX) += fsdev/
 
 common-obj-y += tcg-runtime.o host-utils.o main-loop.o
-common-obj-y += irq.o input.o
-common-obj-$(CONFIG_PTIMER) += ptimer.o
-common-obj-$(CONFIG_MAX7310) += max7310.o
-common-obj-$(CONFIG_WM8750) += wm8750.o
-common-obj-$(CONFIG_TWL92230) += twl92230.o
-common-obj-$(CONFIG_TSC2005) += tsc2005.o
-common-obj-$(CONFIG_LM832X) += lm832x.o
-common-obj-$(CONFIG_TMP105) += tmp105.o
-common-obj-$(CONFIG_STELLARIS_INPUT) += stellaris_input.o
-common-obj-$(CONFIG_SSD0303) += ssd0303.o
-common-obj-$(CONFIG_SSD0323) += ssd0323.o
-common-obj-$(CONFIG_ADS7846) += ads7846.o
-common-obj-$(CONFIG_MAX111X) += max111x.o
-common-obj-$(CONFIG_DS1338) += ds1338.o
-common-obj-y += i2c.o smbus.o smbus_eeprom.o
-common-obj-y += eeprom93xx.o
-common-obj-y += scsi-disk.o cdrom.o
-common-obj-y += scsi-generic.o scsi-bus.o
-common-obj-y += hid.o
-common-obj-y += usb/core.o usb/bus.o usb/desc.o usb/dev-hub.o
-common-obj-y += usb/host-$(HOST_USB).o
-common-obj-y += usb/dev-hid.o usb/dev-storage.o usb/dev-wacom.o
-common-obj-y += usb/dev-serial.o usb/dev-network.o usb/dev-audio.o
-common-obj-$(CONFIG_SSI) += ssi.o
-common-obj-$(CONFIG_SSI_SD) += ssi-sd.o
-common-obj-$(CONFIG_SD) += sd.o
-common-obj-y += bt.o bt-host.o bt-vhci.o bt-l2cap.o bt-sdp.o bt-hci.o bt-hid.o
-common-obj-y += bt-hci-csr.o usb/dev-bluetooth.o
+common-obj-y += input.o
 common-obj-y += buffered_file.o migration.o migration-tcp.o
 common-obj-y += qemu-char.o #aio.o
-common-obj-y += msmouse.o ps2.o
-common-obj-y += qdev.o qdev-properties.o qdev-monitor.o
 common-obj-y += block-migration.o iohandler.o
 common-obj-y += pflib.o
 common-obj-y += bitmap.o bitops.o
 
-common-obj-$(CONFIG_BRLAPI) += baum.o
 common-obj-$(CONFIG_POSIX) += migration-exec.o migration-unix.o migration-fd.o
 common-obj-$(CONFIG_WIN32) += version.o
 
 common-obj-$(CONFIG_SPICE) += spice-qemu-char.o
 
 common-obj-y += audio/
+common-obj-y += hw/
 common-obj-y += ui/
+common-obj-y += bt-host.o bt-vhci.o
 
 common-obj-y += iov.o acl.o
 common-obj-$(CONFIG_POSIX) += compatfd.o
@@ -122,10 +94,6 @@ common-obj-y += qemu-timer.o qemu-timer-common.o
 
 common-obj-$(CONFIG_SLIRP) += slirp/
 
-# xen backend driver support
-common-obj-$(CONFIG_XEN_BACKEND) += xen_backend.o xen_devconfig.o
-common-obj-$(CONFIG_XEN_BACKEND) += xen_console.o xenfb.o xen_disk.o xen_nic.o
-
 ######################################################################
 # libuser
 

configure

@@ -3955,7 +3955,7 @@ DIRS="tests tests/tcg tests/tcg/cris tests/tcg/lm32"
 DIRS="$DIRS slirp audio block net pc-bios/optionrom"
 DIRS="$DIRS pc-bios/spapr-rtas"
 DIRS="$DIRS roms/seabios roms/vgabios"
-DIRS="$DIRS fsdev ui usb"
+DIRS="$DIRS fsdev ui hw hw/usb"
 DIRS="$DIRS qapi qapi-generated"
 DIRS="$DIRS qga trace qom"
 FILES="Makefile tests/tcg/Makefile qdict-test-data.txt"

hw/Makefile.objs

@@ -0,0 +1,32 @@
+common-obj-y += usb/
+common-obj-y += irq.o
+common-obj-$(CONFIG_PTIMER) += ptimer.o
+common-obj-$(CONFIG_MAX7310) += max7310.o
+common-obj-$(CONFIG_WM8750) += wm8750.o
+common-obj-$(CONFIG_TWL92230) += twl92230.o
+common-obj-$(CONFIG_TSC2005) += tsc2005.o
+common-obj-$(CONFIG_LM832X) += lm832x.o
+common-obj-$(CONFIG_TMP105) += tmp105.o
+common-obj-$(CONFIG_STELLARIS_INPUT) += stellaris_input.o
+common-obj-$(CONFIG_SSD0303) += ssd0303.o
+common-obj-$(CONFIG_SSD0323) += ssd0323.o
+common-obj-$(CONFIG_ADS7846) += ads7846.o
+common-obj-$(CONFIG_MAX111X) += max111x.o
+common-obj-$(CONFIG_DS1338) += ds1338.o
+common-obj-y += i2c.o smbus.o smbus_eeprom.o
+common-obj-y += eeprom93xx.o
+common-obj-y += scsi-disk.o cdrom.o
+common-obj-y += scsi-generic.o scsi-bus.o
+common-obj-y += hid.o
+common-obj-$(CONFIG_SSI) += ssi.o
+common-obj-$(CONFIG_SSI_SD) += ssi-sd.o
+common-obj-$(CONFIG_SD) += sd.o
+common-obj-y += bt.o bt-l2cap.o bt-sdp.o bt-hci.o bt-hid.o
+common-obj-y += bt-hci-csr.o
+common-obj-y += msmouse.o ps2.o
+common-obj-y += qdev.o qdev-properties.o qdev-monitor.o
+common-obj-$(CONFIG_BRLAPI) += baum.o
+
+# xen backend driver support
+common-obj-$(CONFIG_XEN_BACKEND) += xen_backend.o xen_devconfig.o
+common-obj-$(CONFIG_XEN_BACKEND) += xen_console.o xenfb.o xen_disk.o xen_nic.o

hw/usb/Makefile.objs

@@ -0,0 +1,4 @@
+common-obj-y += core.o bus.o desc.o dev-hub.o
+common-obj-y += host-$(HOST_USB).o dev-bluetooth.o
+common-obj-y += dev-hid.o dev-storage.o dev-wacom.o
+common-obj-y += dev-serial.o dev-network.o dev-audio.o