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 MAKEFLAGS += -rR
   8
   9 NULL :=
  10 SPACE := $(NULL) #
  11 TARGET_PREFIX := $(patsubst %/,%:$(SPACE),$(TARGET_DIR))
  12
  13 quiet-@ = $(if $(V),,@$(if $1,printf "%s\n" "$(TARGET_PREFIX)$1" && ))
  14 quiet-command = $(call quiet-@,$2 $@)$1
  15
  16 VPATH_SUFFIXES = %.c %.h %.S %.m %.mak %.sh %.rc Kconfig% %.json.in
  17 set-vpath = $(if $1,$(foreach PATTERN,$(VPATH_SUFFIXES),$(eval vpath $(PATTERN) $1)))
  18 $(call set-vpath, $(SRC_PATH))
  19
  20 # Flags for dependency generation
  21 QEMU_DGFLAGS = -MMD -MP -MT $@ -MF $(@D)/$(*F).d
  22
  23 %.o: %.c
  24         $(call quiet-command,$(CC) $(EXTRA_CFLAGS) $(QEMU_DGFLAGS) $(CFLAGS) \
  25                -c -o $@ $<,Compiling)
  26
  27 %.o: %.S
  28         $(call quiet-command,$(CCAS) $(EXTRA_CFLAGS) $(QEMU_DGFLAGS) $(CFLAGS) \
  29                -c -o $@ $<,Assembling)
  30
  31 .PHONY : all clean build-all distclean
  32
  33 OBJECTS = start.o main.o bootmap.o jump2ipl.o sclp.o menu.o \
  34           virtio.o virtio-scsi.o virtio-blkdev.o libc.o cio.o dasd-ipl.o
  35
  36 EXTRA_CFLAGS += -Wall
  37 EXTRA_CFLAGS += -ffreestanding -fno-delete-null-pointer-checks -fno-common -fPIE
  38 EXTRA_CFLAGS += -fwrapv -fno-strict-aliasing -fno-asynchronous-unwind-tables
  39 EXTRA_CFLAGS += -msoft-float
  40 EXTRA_CFLAGS += -std=gnu99
  41 LDFLAGS += -Wl,-pie -nostdlib
  42
  43 cc-test = $(CC) -Werror $1 -c -o /dev/null -xc /dev/null >/dev/null 2>/dev/null
  44 cc-option = if $(call cc-test, $1); then \
  45     echo "$(TARGET_PREFIX)$1 detected" && echo "EXTRA_CFLAGS += $1" >&3; else \
  46     echo "$(TARGET_PREFIX)$1 not detected" $(if $2,&& echo "EXTRA_CFLAGS += $2" >&3); fi
  47
  48 config-cc.mak: Makefile
  49         $(quiet-@)($(call cc-option,-Wno-stringop-overflow); \
  50             $(call cc-option,-fno-stack-protector); \
  51             $(call cc-option,-Wno-array-bounds); \
  52             $(call cc-option,-Wno-gnu); \
  53             $(call cc-option,-march=z900,-march=z10)) 3> config-cc.mak
  54 -include config-cc.mak
  55
  56 LDFLAGS += -Wl,-pie -nostdlib
  57
  58 build-all: s390-ccw.img s390-netboot.img
  59
  60 s390-ccw.elf: $(OBJECTS)
  61         $(call quiet-command,$(CC) $(LDFLAGS) -o $@ $(OBJECTS),Linking)
  62
  63 s390-ccw.img: s390-ccw.elf
  64         $(call quiet-command,$(STRIP) --strip-unneeded $< -o $@,Stripping $< into)
  65
  66 $(OBJECTS): Makefile
  67
  68 ifneq ($(wildcard $(SRC_PATH)/../../roms/SLOF/lib/libnet),)
  69 include $(SRC_PATH)/netboot.mak
  70 else
  71 s390-netboot.img:
  72         @echo "s390-netboot.img not built since roms/SLOF/ is not available."
  73 endif
  74
  75 ALL_OBJS = $(sort $(OBJECTS) $(NETOBJS) $(LIBCOBJS) $(LIBNETOBJS))
  76 -include $(ALL_OBJS:%.o=%.d)
  77
  78 clean:
  79         rm -f *.o *.d *.img *.elf *~ *.a
  80
  81 distclean:
  82         rm -f config-cc.mak