Archipelago » qemu

# Don't use implicit rules or variables

# we have explicit rules for everything

MAKEFLAGS += -rR

# Files with this suffixes are final, don't try to generate them

# using implicit rules

%.d:

%.h:

%.c:

%.cc:

%.cpp:

%.m:

%.mak:

# Flags for C++ compilation

QEMU_CXXFLAGS = -D__STDC_LIMIT_MACROS $(filter-out -Wstrict-prototypes -Wmissing-prototypes -Wnested-externs -Wold-style-declaration -Wold-style-definition -Wredundant-decls, $(QEMU_CFLAGS))

# Flags for dependency generation

QEMU_DGFLAGS += -MMD -MP -MT $@ -MF $(*D)/$(*F).d

# Same as -I$(SRC_PATH) -I., but for the nested source/object directories

QEMU_INCLUDES += -I$(<D) -I$(@D)

maybe-add = $(filter-out $1, $2) $1

extract-libs = $(strip $(sort $(foreach o,$1,$($o-libs)) \

                  $(foreach o,$(call expand-objs,$1),$($o-libs))))

expand-objs = $(strip $(sort $(filter %.o,$1)) \

                  $(foreach o,$(filter %.mo,$1),$($o-objs)) \

                  $(filter-out %.o %.mo,$1))

%.o: %.c

	$(call quiet-command,$(CC) $(QEMU_INCLUDES) $(QEMU_CFLAGS) $(QEMU_DGFLAGS) $(CFLAGS) $($@-cflags) -c -o $@ $<,"  CC    $(TARGET_DIR)$@")

%.o: %.rc

	$(call quiet-command,$(WINDRES) -I. -o $@ $<,"  RC    $(TARGET_DIR)$@")

# If we have a CXX we might have some C++ objects, in which case we

# must link with the C++ compiler, not the plain C compiler.

LINKPROG = $(or $(CXX),$(CC))

ifeq ($(LIBTOOL),)

LINK = $(call quiet-command,$(LINKPROG) $(QEMU_CFLAGS) $(CFLAGS) $(LDFLAGS) -o $@ \

       $(call expand-objs,$1) $(version-obj-y) \

       $(call extract-libs,$1) $(LIBS),"  LINK  $(TARGET_DIR)$@")

else

LIBTOOL += $(if $(V),,--quiet)

%.lo: %.c

	$(call quiet-command,$(LIBTOOL) --mode=compile --tag=CC $(CC) $(QEMU_INCLUDES) $(QEMU_CFLAGS) $(QEMU_DGFLAGS) $(CFLAGS) -c -o $@ $<,"  lt CC $@")

%.lo: %.rc

	$(call quiet-command,$(LIBTOOL) --mode=compile --tag=RC $(WINDRES) -I. -o $@ $<,"lt RC   $(TARGET_DIR)$@")

%.lo: %.dtrace

	$(call quiet-command,$(LIBTOOL) --mode=compile --tag=CC dtrace -o $@ -G -s $<, " lt GEN $(TARGET_DIR)$@")

LINK = $(call quiet-command,\

       $(if $(filter %.lo %.la,$1),$(LIBTOOL) --mode=link --tag=CC \

       )$(LINKPROG) $(QEMU_CFLAGS) $(CFLAGS) $(LDFLAGS) -o $@ \

       $(call expand-objs,$1) \

       $(if $(filter %.lo %.la,$1),$(version-lobj-y),$(version-obj-y)) \

       $(if $(filter %.lo %.la,$1),$(LIBTOOLFLAGS)) \

       $(call extract-libs,$1) $(LIBS),$(if $(filter %.lo %.la,$1),"lt LINK ", "  LINK  ")"$(TARGET_DIR)$@")

endif

%.asm: %.S

	$(call quiet-command,$(CPP) $(QEMU_INCLUDES) $(QEMU_CFLAGS) $(QEMU_DGFLAGS) $(CFLAGS) -o $@ $<,"  CPP   $(TARGET_DIR)$@")

%.o: %.asm

	$(call quiet-command,$(AS) $(ASFLAGS) -o $@ $<,"  AS    $(TARGET_DIR)$@")

%.o: %.cc

	$(call quiet-command,$(CXX) $(QEMU_INCLUDES) $(QEMU_CXXFLAGS) $(QEMU_DGFLAGS) $(CFLAGS) -c -o $@ $<,"  CXX   $(TARGET_DIR)$@")

%.o: %.cpp

	$(call quiet-command,$(CXX) $(QEMU_INCLUDES) $(QEMU_CXXFLAGS) $(QEMU_DGFLAGS) $(CFLAGS) -c -o $@ $<,"  CXX   $(TARGET_DIR)$@")

%.o: %.m

	$(call quiet-command,$(OBJCC) $(QEMU_INCLUDES) $(QEMU_CFLAGS) $(QEMU_DGFLAGS) $(CFLAGS) -c -o $@ $<,"  OBJC  $(TARGET_DIR)$@")

%.o: %.dtrace

	$(call quiet-command,dtrace -o $@ -G -s $<, "  GEN   $(TARGET_DIR)$@")

DSO_CFLAGS := -fPIC -DBUILD_DSO

%$(DSOSUF): LDFLAGS += $(LDFLAGS_SHARED)

%$(DSOSUF): %.mo libqemustub.a

	$(call LINK,$^)

	@# Copy to build root so modules can be loaded when program started without install

	$(if $(findstring /,$@),$(call quiet-command,cp $@ $(subst /,-,$@), "  CP    $(subst /,-,$@)"))

.PHONY: modules

modules:

%$(EXESUF): %.o

	$(call LINK,$^)

%.a:

	$(call quiet-command,rm -f $@ && $(AR) rcs $@ $^,"  AR    $(TARGET_DIR)$@")

quiet-command = $(if $(V),$1,$(if $(2),@echo $2 && $1, @$1))

# cc-option

# Usage: CFLAGS+=$(call cc-option, -falign-functions=0, -malign-functions=0)

cc-option = $(if $(shell $(CC) $1 $2 -S -o /dev/null -xc /dev/null \

              >/dev/null 2>&1 && echo OK), $2, $3)

VPATH_SUFFIXES = %.c %.h %.S %.cc %.cpp %.m %.mak %.texi %.sh %.rc

set-vpath = $(if $1,$(foreach PATTERN,$(VPATH_SUFFIXES),$(eval vpath $(PATTERN) $1)))

# find-in-path

# Usage: $(call find-in-path, prog)

# Looks in the PATH if the argument contains no slash, else only considers one

# specific directory.  Returns an # empty string if the program doesn't exist

# there.

find-in-path = $(if $(find-string /, $1), \

        $(wildcard $1), \

        $(wildcard $(patsubst %, %/$1, $(subst :, ,$(PATH)))))

# Logical functions (for operating on y/n values like CONFIG_FOO vars)

# Inputs to these must be either "y" (true) or "n" or "" (both false)

# Output is always either "y" or "n".

# Usage: $(call land,$(CONFIG_FOO),$(CONFIG_BAR))

# Logical NOT

lnot = $(if $(subst n,,$1),n,y)

# Logical AND

land = $(if $(findstring yy,$1$2),y,n)

# Logical OR

lor = $(if $(findstring y,$1$2),y,n)

# Logical XOR (note that this is the inverse of leqv)

lxor = $(if $(filter $(call lnot,$1),$(call lnot,$2)),n,y)

# Logical equivalence (note that leqv "","n" is true)

leqv = $(if $(filter $(call lnot,$1),$(call lnot,$2)),y,n)

# Logical if: like make's $(if) but with an leqv-like test

lif = $(if $(subst n,,$1),$2,$3)

# String testing functions: inputs to these can be any string;

# the output is always either "y" or "n". Leading and trailing whitespace

# is ignored when comparing strings.

# String equality

eq = $(if $(subst $2,,$1)$(subst $1,,$2),n,y)

# String inequality

ne = $(if $(subst $2,,$1)$(subst $1,,$2),y,n)

# Emptiness/non-emptiness tests:

isempty = $(if $1,n,y)

notempty = $(if $1,y,n)

# Generate files with tracetool

TRACETOOL=$(PYTHON) $(SRC_PATH)/scripts/tracetool.py

# Generate timestamp files for .h include files

config-%.h: config-%.h-timestamp

	@cmp $< $@ >/dev/null 2>&1 || cp $< $@

config-%.h-timestamp: config-%.mak

	$(call quiet-command, sh $(SRC_PATH)/scripts/create_config < $< > $@, "  GEN   $(TARGET_DIR)config-$*.h")

.PHONY: clean-timestamp

clean-timestamp:

	rm -f *.timestamp

clean: clean-timestamp

# will delete the target of a rule if commands exit with a nonzero exit status

.DELETE_ON_ERROR:

# magic to descend into other directories

define push-var

$(eval save-$2-$1 = $(value $1))

$(eval $1 :=)

endef

define pop-var

$(eval subdir-$2-$1 := $(if $(filter $2,$(save-$2-$1)),$(addprefix $2,$($1))))

$(eval $1 = $(value save-$2-$1) $$(subdir-$2-$1))

$(eval save-$2-$1 :=)

endef

define fix-obj-vars

$(foreach v,$($1), \

	$(if $($v-cflags), \

		$(eval $2$v-cflags := $($v-cflags)) \

		$(eval $v-cflags := )) \

	$(if $($v-libs), \

		$(eval $2$v-libs := $($v-libs)) \

		$(eval $v-libs := )) \

	$(if $($v-objs), \

		$(eval $2$v-objs := $(addprefix $2,$($v-objs))) \

		$(eval $v-objs := )))

endef

define unnest-dir

$(foreach var,$(nested-vars),$(call push-var,$(var),$1/))

$(eval obj-parent-$1 := $(obj))

$(eval obj := $(if $(obj),$(obj)/$1,$1))

$(eval include $(SRC_PATH)/$1/Makefile.objs)

$(foreach v,$(nested-vars),$(call fix-obj-vars,$v,$(if $(obj),$(obj)/)))

$(eval obj := $(obj-parent-$1))

$(eval obj-parent-$1 := )

$(foreach var,$(nested-vars),$(call pop-var,$(var),$1/))

endef

define unnest-vars-1

$(eval nested-dirs := $(filter-out \

    $(old-nested-dirs), \

    $(sort $(foreach var,$(nested-vars), $(filter %/, $($(var)))))))

$(if $(nested-dirs),

  $(foreach dir,$(nested-dirs),$(call unnest-dir,$(patsubst %/,%,$(dir))))

  $(eval old-nested-dirs := $(old-nested-dirs) $(nested-dirs))

  $(call unnest-vars-1))

endef

define process-modules

$(foreach o,$(filter %.o,$($1)),

	$(eval $(patsubst %.o,%.mo,$o): $o) \

	$(eval $(patsubst %.o,%.mo,$o)-objs := $o))

$(foreach o,$(filter-out $(modules-m), $(patsubst %.o,%.mo,$($1))), \

    $(eval $o-objs += module-common.o)

    $(eval $o: $($o-objs))

    $(eval modules-objs-m += $($o-objs))

    $(eval modules-m += $o)

    $(eval $o:; $$(call quiet-command,touch $$@,"  GEN   $$(TARGET_DIR)$$@"))

    $(if $(CONFIG_MODULES),$(eval modules: $(patsubst %.mo,%$(DSOSUF),$o)))) \

$(eval modules-objs-m := $(sort $(modules-objs-m)))

$(foreach o,$(modules-objs-m), \

    $(if $(CONFIG_MODULES),$(eval $o-cflags := $(call maybe-add, $(DSO_CFLAGS), $($o-cflags)))))

$(eval $(patsubst %-m,%-$(call lnot,$(CONFIG_MODULES)),$1) += $($1))

endef

define unnest-vars

$(eval obj := $1)

$(eval nested-vars := $2)

$(eval old-nested-dirs := )

$(call unnest-vars-1)

$(if $1,$(foreach v,$(nested-vars),$(eval \

	$v := $(addprefix $1/,$($v)))))

$(foreach var,$(nested-vars),$(eval $(var) := $(filter-out %/, $($(var)))))

$(shell mkdir -p $(sort $(foreach var,$(nested-vars),$(dir $($(var))))))

$(foreach var,$(nested-vars), $(eval \

  -include $(addsuffix *.d, $(sort $(dir $($(var)))))))

$(foreach v,$(filter %-m,$(nested-vars)), \

    $(call process-modules,$v))

endef