Makefile to compile it all

From this commit onwards the whole thing compiles and works (from
2.6.34 onwards). We chose to save you from the past history of
internal zio development.

Signed-off by: Federico Vaga <federico.vaga@gmail.com>
Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Makefile

+LINUX ?= /lib/modules/$(shell uname -r)/build
+
+zio-core-objs := zio-dev.o zio-sys.o zio-buf.o
+obj-m = zio-core.o
+obj-m += drivers/
+obj-m += buffers/
+obj-m += triggers/
+
+EXTRA_CFLAGS += -I$(obj)/include/
+
+hostprogs-y := zio-dump
+
+HOST_EXTRACFLAGS += -I$(M)/include/
+
+all: modules user
+
+modules:
+	$(MAKE) $(EXTRA_CFLAGS) -C $(LINUX) M=$(shell /bin/pwd)
+
+# This is ugly, please forgive me by now
+user: $(hostprogs-y)
+
+zio-dump: zio-dump.c
+	$(CC) -Wall -Iinclude $^ -o $@
+
+# this make clean is ugly, I'm aware...
+clean:
+	rm -rf `find . -name \*.o -o -name \*.ko -o -name \*~ `
+	rm -rf `find . -name Module.\* -o -name \*.mod.c`
+	rm -rf .tmp_versions modules.order
+	$(MAKE) -C doc clean

buffers/Makefile

+LINUX ?= /lib/modules/$(shell uname -r)/build
+
+EXTRA_CFLAGS += -I$(obj)/../include/
+
+obj-m = zio-buf-kmalloc.o
+
+all:
+	$(MAKE) -C $(LINUX) M=$(shell /bin/pwd) modules

drivers/Makefile

+LINUX ?= /lib/modules/$(shell uname -r)/build
+
+EXTRA_CFLAGS += -I$(obj)/../include/
+
+obj-m = zio-zero.o
+
+all:
+	$(MAKE) -C $(LINUX) M=$(shell /bin/pwd) modules

triggers/Makefile

+LINUX ?= /lib/modules/$(shell uname -r)/build
+
+EXTRA_CFLAGS += -I$(obj)/../include/
+
+obj-m = zio-trig-timer.o
+
+all:
+	$(MAKE) -C $(LINUX) M=$(shell /bin/pwd) modules