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 GIT_SUBMODULES = roms/SLOF
  10
  11 NULL :=
  12 SPACE := $(NULL) #
  13 TARGET_PREFIX := $(patsubst %/,%:$(SPACE),$(TARGET_DIR))
  14
  15 quiet-@ = $(if $(V),,@$(if $1,printf "%s\n" "$(TARGET_PREFIX)$1" && ))
  16 quiet-command = $(call quiet-@,$2 $@)$1
  17
  18 VPATH_SUFFIXES = %.c %.h %.S %.m %.mak %.sh %.rc Kconfig% %.json.in
  19 set-vpath = $(if $1,$(foreach PATTERN,$(VPATH_SUFFIXES),$(eval vpath $(PATTERN) $1)))
  20 $(call set-vpath, $(SRC_PATH))
  21
  22 # Flags for dependency generation
  23 QEMU_DGFLAGS = -MMD -MP -MT $@ -MF $(@D)/$(*F).d
  24
  25 %.o: %.c
  26         $(call quiet-command,$(CC) $(EXTRA_CFLAGS) $(QEMU_DGFLAGS) $(CFLAGS) \
  27                -c -o $@ $<,Compiling)
  28
  29 %.o: %.S
  30         $(call quiet-command,$(CCAS) $(EXTRA_CFLAGS) $(QEMU_DGFLAGS) $(CFLAGS) \
  31                -c -o $@ $<,Assembling)
  32
  33 .PHONY : all clean build-all distclean
  34
  35 OBJECTS = start.o main.o bootmap.o jump2ipl.o sclp.o menu.o \
  36           virtio.o virtio-scsi.o virtio-blkdev.o libc.o cio.o dasd-ipl.o
  37
  38 EXTRA_CFLAGS += -Wall
  39 EXTRA_CFLAGS += -ffreestanding -fno-delete-null-pointer-checks -fno-common -fPIE
  40 EXTRA_CFLAGS += -fwrapv -fno-strict-aliasing -fno-asynchronous-unwind-tables
  41 EXTRA_CFLAGS += -msoft-float
  42 EXTRA_CFLAGS += -std=gnu99
  43 LDFLAGS += -Wl,-pie -nostdlib
  44
  45 cc-test = $(CC) -Werror $1 -c -o /dev/null -xc /dev/null >/dev/null 2>/dev/null
  46 cc-option = if $(call cc-test, $1); then \
  47     echo "$(TARGET_PREFIX)$1 detected" && echo "EXTRA_CFLAGS += $1" >&3; else \
  48     echo "$(TARGET_PREFIX)$1 not detected" $(if $2,&& echo "EXTRA_CFLAGS += $2" >&3); fi
  49
  50 config-cc.mak: Makefile
  51         $(quiet-@)($(call cc-option,-Wno-stringop-overflow); \
  52             $(call cc-option,-fno-stack-protector); \
  53             $(call cc-option,-Wno-array-bounds); \
  54             $(call cc-option,-Wno-gnu); \
  55             $(call cc-option,-march=z900,-march=z10)) 3> config-cc.mak
  56 -include config-cc.mak
  57
  58 LDFLAGS += -Wl,-pie -nostdlib -z noexecstack
  59
  60 build-all: s390-ccw.img s390-netboot.img
  61
  62 s390-ccw.elf: $(OBJECTS)
  63         $(call quiet-command,$(CC) $(LDFLAGS) -o $@ $(OBJECTS),Linking)
  64
  65 s390-ccw.img: s390-ccw.elf
  66         $(call quiet-command,$(STRIP) --strip-unneeded $< -o $@,Stripping $< into)
  67
  68 $(OBJECTS): Makefile
  69
  70 include $(SRC_PATH)/netboot.mak
  71
  72 ALL_OBJS = $(sort $(OBJECTS) $(NETOBJS) $(LIBCOBJS) $(LIBNETOBJS))
  73 -include $(ALL_OBJS:%.o=%.d)
  74
  75 clean:
  76         rm -f *.o *.d *.img *.elf *~ *.a
  77
  78 distclean:
  79         rm -f config-cc.mak
  80
  81 .PHONY: git-submodule-update
  82 $(SRC_PATH)/../../.git-submodule-status: git-submodule-update config-host.mak
  83 Makefile: $(SRC_PATH)/../../.git-submodule-status
  84
  85 git-submodule-update:
  86 ifneq ($(GIT_SUBMODULES_ACTION),ignore)
  87         $(quiet-@)GIT=git "$(SRC_PATH)/../../scripts/git-submodule.sh" $(GIT_SUBMODULES_ACTION) $(GIT_SUBMODULES)
  88 endif