LXR qemu/rules.mak

   1
   2# Don't use implicit rules or variables
   3# we have explicit rules for everything
   4MAKEFLAGS += -rR
   5
   6# Files with this suffixes are final, don't try to generate them
   7# using implicit rules
   8%.d:
   9%.h:
  10%.c:
  11%.m:
  12%.mak:
  13
  14# Flags for dependency generation
  15QEMU_DGFLAGS += -MMD -MP -MT $@ -MF $(*D)/$(*F).d
  16
  17# Same as -I$(SRC_PATH) -I., but for the nested source/object directories
  18QEMU_CFLAGS += -I$(<D) -I$(@D)
  19
  20%.o: %.c
  21        $(call quiet-command,$(CC) $(QEMU_INCLUDES) $(QEMU_CFLAGS) $(QEMU_DGFLAGS) $(CFLAGS) -c -o $@ $<,"  CC    $(TARGET_DIR)$@")
  22
  23ifeq ($(LIBTOOL),)
  24LIBTOOL = /bin/false
  25LINK = $(call quiet-command,$(CC) $(QEMU_CFLAGS) $(CFLAGS) $(LDFLAGS) -o $@ \
  26       $(sort $(filter %.o, $1)) $(filter-out %.o, $1) $(version-obj-y) \
  27       $(LIBS),"  LINK  $(TARGET_DIR)$@")
  28else
  29LIBTOOL += $(if $(V),,--quiet)
  30%.lo: %.c
  31        $(call quiet-command,$(LIBTOOL) --mode=compile --tag=CC $(CC) $(QEMU_INCLUDES) $(QEMU_CFLAGS) $(QEMU_DGFLAGS) $(CFLAGS) -c -o $@ $<,"  lt CC $@")
  32%.lo: %.dtrace
  33        $(call quiet-command,$(LIBTOOL) --mode=compile --tag=CC dtrace -o $@ -G -s $<, " lt GEN $(TARGET_DIR)$@")
  34
  35LINK = $(call quiet-command,\
  36       $(if $(filter %.lo %.la,$^),$(LIBTOOL) --mode=link --tag=CC \
  37       )$(CC) $(QEMU_CFLAGS) $(CFLAGS) $(LDFLAGS) -o $@ \
  38       $(sort $(filter %.o, $1)) $(filter-out %.o, $1) $(version-obj-y) \
  39       $(LIBS),$(if $(filter %.lo %.la,$^),"lt LINK ", "  LINK  ")"$(TARGET_DIR)$@")
  40endif
  41
  42%.asm: %.S
  43        $(call quiet-command,$(CPP) $(QEMU_INCLUDES) $(QEMU_CFLAGS) $(QEMU_DGFLAGS) $(CFLAGS) -o $@ $<,"  CPP   $(TARGET_DIR)$@")
  44
  45%.o: %.asm
  46        $(call quiet-command,$(AS) $(ASFLAGS) -o $@ $<,"  AS    $(TARGET_DIR)$@")
  47
  48%.o: %.m
  49        $(call quiet-command,$(OBJCC) $(QEMU_INCLUDES) $(QEMU_CFLAGS) $(QEMU_DGFLAGS) $(CFLAGS) -c -o $@ $<,"  OBJC  $(TARGET_DIR)$@")
  50
  51%.o: %.dtrace
  52        $(call quiet-command,dtrace -o $@ -G -s $<, "  GEN   $(TARGET_DIR)$@")
  53
  54%$(EXESUF): %.o
  55        $(call LINK,$^)
  56
  57%.a:
  58        $(call quiet-command,rm -f $@ && $(AR) rcs $@ $^,"  AR    $(TARGET_DIR)$@")
  59
  60quiet-command = $(if $(V),$1,$(if $(2),@echo $2 && $1, @$1))
  61
  62# cc-option
  63# Usage: CFLAGS+=$(call cc-option, -falign-functions=0, -malign-functions=0)
  64
  65cc-option = $(if $(shell $(CC) $1 $2 -S -o /dev/null -xc /dev/null \
  66              >/dev/null 2>&1 && echo OK), $2, $3)
  67
  68VPATH_SUFFIXES = %.c %.h %.S %.m %.mak %.texi %.sh
  69set-vpath = $(if $1,$(foreach PATTERN,$(VPATH_SUFFIXES),$(eval vpath $(PATTERN) $1)))
  70
  71# find-in-path
  72# Usage: $(call find-in-path, prog)
  73# Looks in the PATH if the argument contains no slash, else only considers one
  74# specific directory.  Returns an # empty string if the program doesn't exist
  75# there.
  76find-in-path = $(if $(find-string /, $1), \
  77        $(wildcard $1), \
  78        $(wildcard $(patsubst %, %/$1, $(subst :, ,$(PATH)))))
  79
  80# Generate files with tracetool
  81TRACETOOL=$(PYTHON) $(SRC_PATH)/scripts/tracetool.py
  82
  83# Generate timestamp files for .h include files
  84
  85config-%.h: config-%.h-timestamp
  86        @cmp $< $@ >/dev/null 2>&1 || cp $< $@
  87
  88config-%.h-timestamp: config-%.mak
  89        $(call quiet-command, sh $(SRC_PATH)/scripts/create_config < $< > $@, "  GEN   $(TARGET_DIR)config-$*.h")
  90
  91.PHONY: clean-timestamp
  92clean-timestamp:
  93        rm -f *.timestamp
  94clean: clean-timestamp
  95
  96# will delete the target of a rule if commands exit with a nonzero exit status
  97.DELETE_ON_ERROR:
  98
  99# magic to descend into other directories
 100
 101obj := .
 102old-nested-dirs :=
 103
 104define push-var
 105$(eval save-$2-$1 = $(value $1))
 106$(eval $1 :=)
 107endef
 108
 109define pop-var
 110$(eval subdir-$2-$1 := $(if $(filter $2,$(save-$2-$1)),$(addprefix $2,$($1))))
 111$(eval $1 = $(value save-$2-$1) $$(subdir-$2-$1))
 112$(eval save-$2-$1 :=)
 113endef
 114
 115define unnest-dir
 116$(foreach var,$(nested-vars),$(call push-var,$(var),$1/))
 117$(eval obj := $(obj)/$1)
 118$(eval include $(SRC_PATH)/$1/Makefile.objs)
 119$(eval obj := $(patsubst %/$1,%,$(obj)))
 120$(foreach var,$(nested-vars),$(call pop-var,$(var),$1/))
 121endef
 122
 123define unnest-vars-1
 124$(eval nested-dirs := $(filter-out \
 125    $(old-nested-dirs), \
 126    $(sort $(foreach var,$(nested-vars), $(filter %/, $($(var)))))))
 127$(if $(nested-dirs),
 128  $(foreach dir,$(nested-dirs),$(call unnest-dir,$(patsubst %/,%,$(dir))))
 129  $(eval old-nested-dirs := $(old-nested-dirs) $(nested-dirs))
 130  $(call unnest-vars-1))
 131endef
 132
 133define unnest-vars
 134$(call unnest-vars-1)
 135$(foreach var,$(nested-vars),$(eval $(var) := $(filter-out %/, $($(var)))))
 136$(shell mkdir -p $(sort $(foreach var,$(nested-vars),$(dir $($(var))))))
 137$(foreach var,$(nested-vars), $(eval \
 138  -include $(addsuffix *.d, $(sort $(dir $($(var)))))))
 139endef
 140