xref: /openbmc/qemu/pc-bios/s390-ccw/Makefile (revision 64ed6f92) 
1all: build-all
2# Dummy command so that make thinks it has done something
3	@true
4
5include ../../config-host.mak
6
7quiet-command = $(if $(V),$1,$(if $(2),@printf "  %-7s %s\n" $2 $3 && $1, @$1))
8cc-option = $(if $(shell $(CC) $1 -S -o /dev/null -xc /dev/null > /dev/null \
9	      2>&1 && echo OK), $1, $2)
10
11VPATH_SUFFIXES = %.c %.h %.S %.m %.mak %.sh %.rc Kconfig% %.json.in
12set-vpath = $(if $1,$(foreach PATTERN,$(VPATH_SUFFIXES),$(eval vpath $(PATTERN) $1)))
13$(call set-vpath, $(SRC_PATH)/pc-bios/s390-ccw)
14
15# Flags for dependency generation
16QEMU_DGFLAGS = -MMD -MP -MT $@ -MF $(@D)/$(*F).d
17
18%.o: %.c
19	$(call quiet-command,$(CC) $(QEMU_CFLAGS) $(QEMU_DGFLAGS) $(CFLAGS) \
20	       -c -o $@ $<,"CC","$(TARGET_DIR)$@")
21
22%.o: %.S
23	$(call quiet-command,$(CCAS) $(QEMU_CFLAGS) $(QEMU_DGFLAGS) $(CFLAGS) \
24	       -c -o $@ $<,"CCAS","$(TARGET_DIR)$@")
25
26.PHONY : all clean build-all
27
28OBJECTS = start.o main.o bootmap.o jump2ipl.o sclp.o menu.o \
29	  virtio.o virtio-scsi.o virtio-blkdev.o libc.o cio.o dasd-ipl.o
30
31QEMU_CFLAGS := $(filter -W%, $(QEMU_CFLAGS))
32QEMU_CFLAGS += -ffreestanding -fno-delete-null-pointer-checks -msoft-float
33QEMU_CFLAGS += -march=z900 -fPIE -fno-strict-aliasing
34QEMU_CFLAGS += -fno-asynchronous-unwind-tables
35QEMU_CFLAGS += $(call cc-option, $(QEMU_CFLAGS), -fno-stack-protector)
36LDFLAGS += -Wl,-pie -nostdlib
37
38build-all: s390-ccw.img s390-netboot.img
39
40s390-ccw.elf: $(OBJECTS)
41	$(call quiet-command,$(CC) $(LDFLAGS) -o $@ $(OBJECTS),"BUILD","$(TARGET_DIR)$@")
42
43STRIP ?= strip
44
45s390-ccw.img: s390-ccw.elf
46	$(call quiet-command,$(STRIP) --strip-unneeded $< -o $@,"STRIP","$(TARGET_DIR)$@")
47
48$(OBJECTS): Makefile
49
50ifneq ($(wildcard $(SRC_PATH)/roms/SLOF/lib/libnet),)
51include $(SRC_PATH)/pc-bios/s390-ccw/netboot.mak
52else
53s390-netboot.img:
54	@echo "s390-netboot.img not built since roms/SLOF/ is not available."
55endif
56
57ALL_OBJS = $(sort $(OBJECTS) $(NETOBJS) $(LIBCOBJS) $(LIBNETOBJS))
58-include $(ALL_OBJS:%.o=%.d)
59
60clean:
61	rm -f *.o *.d *.img *.elf *~ *.a
62