pc-bios/s390-ccw/Makefile

   1 all: build-all
   2 # Dummy command so that make thinks it has done something
   3         @true
   4
   5 include ../../config-host.mak
   6 CFLAGS = -O2 -g
   7
   8 quiet-command = $(if $(V),$1,$(if $(2),@printf "  %-7s %s\n" $2 $3 && $1, @$1))
   9 cc-option = $(if $(shell $(CC) $1 $2 -S -o /dev/null -xc /dev/null \
  10                          >/dev/null 2>&1 && echo OK),$2,$3)
  11
  12 VPATH_SUFFIXES = %.c %.h %.S %.m %.mak %.sh %.rc Kconfig% %.json.in
  13 set-vpath = $(if $1,$(foreach PATTERN,$(VPATH_SUFFIXES),$(eval vpath $(PATTERN) $1)))
  14 $(call set-vpath, $(SRC_PATH)/pc-bios/s390-ccw)
  15
  16 # Flags for dependency generation
  17 QEMU_DGFLAGS = -MMD -MP -MT $@ -MF $(@D)/$(*F).d
  18
  19 %.o: %.c
  20         $(call quiet-command,$(CC) $(QEMU_CFLAGS) $(QEMU_DGFLAGS) $(CFLAGS) \
  21                -c -o $@ $<,"CC","$(TARGET_DIR)$@")
  22
  23 %.o: %.S
  24         $(call quiet-command,$(CCAS) $(QEMU_CFLAGS) $(QEMU_DGFLAGS) $(CFLAGS) \
  25                -c -o $@ $<,"CCAS","$(TARGET_DIR)$@")
  26
  27 .PHONY : all clean build-all
  28
  29 OBJECTS = start.o main.o bootmap.o jump2ipl.o sclp.o menu.o \
  30           virtio.o virtio-scsi.o virtio-blkdev.o libc.o cio.o dasd-ipl.o
  31
  32 QEMU_CFLAGS := -Wall $(filter -W%, $(QEMU_CFLAGS))
  33 QEMU_CFLAGS += $(call cc-option,-Werror $(QEMU_CFLAGS),-Wno-stringop-overflow)
  34 QEMU_CFLAGS += -ffreestanding -fno-delete-null-pointer-checks -fno-common -fPIE
  35 QEMU_CFLAGS += -fwrapv -fno-strict-aliasing -fno-asynchronous-unwind-tables
  36 QEMU_CFLAGS += $(call cc-option, $(QEMU_CFLAGS), -fno-stack-protector)
  37 QEMU_CFLAGS += -msoft-float
  38 QEMU_CFLAGS += $(call cc-option, $(QEMU_CFLAGS),-march=z900,-march=z10)
  39 QEMU_CFLAGS += -std=gnu99
  40 LDFLAGS += -Wl,-pie -nostdlib
  41
  42 build-all: s390-ccw.img s390-netboot.img
  43
  44 s390-ccw.elf: $(OBJECTS)
  45         $(call quiet-command,$(CC) $(LDFLAGS) -o $@ $(OBJECTS),"BUILD","$(TARGET_DIR)$@")
  46
  47 STRIP ?= strip
  48
  49 s390-ccw.img: s390-ccw.elf
  50         $(call quiet-command,$(STRIP) --strip-unneeded $< -o $@,"STRIP","$(TARGET_DIR)$@")
  51
  52 $(OBJECTS): Makefile
  53
  54 ifneq ($(wildcard $(SRC_PATH)/roms/SLOF/lib/libnet),)
  55 include $(SRC_PATH)/pc-bios/s390-ccw/netboot.mak
  56 else
  57 s390-netboot.img:
  58         @echo "s390-netboot.img not built since roms/SLOF/ is not available."
  59 endif
  60
  61 ALL_OBJS = $(sort $(OBJECTS) $(NETOBJS) $(LIBCOBJS) $(LIBNETOBJS))
  62 -include $(ALL_OBJS:%.o=%.d)
  63
  64 clean:
  65         rm -f *.o *.d *.img *.elf *~ *.a