2
# Don't use implicit rules or variables
3
# we have explicit rules for everything
6
# Files with this suffixes are final, don't try to generate them
15
# Flags for C++ compilation
16
QEMU_CXXFLAGS = -D__STDC_LIMIT_MACROS $(filter-out -Wstrict-prototypes -Wmissing-prototypes -Wnested-externs -Wold-style-declaration -Wold-style-definition -Wredundant-decls, $(QEMU_CFLAGS))
18
# Flags for dependency generation
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QEMU_DGFLAGS += -MMD -MP -MT $@ -MF $(*D)/$(*F).d
21
# Same as -I$(SRC_PATH) -I., but for the nested source/object directories
22
QEMU_INCLUDES += -I$(<D) -I$(@D)
25
$(call quiet-command,$(CC) $(QEMU_INCLUDES) $(QEMU_CFLAGS) $(QEMU_DGFLAGS) $(CFLAGS) -c -o $@ $<," CC $(TARGET_DIR)$@")
27
$(call quiet-command,$(WINDRES) -I. -o $@ $<," RC $(TARGET_DIR)$@")
30
LINK = $(call quiet-command,$(CC) $(QEMU_CFLAGS) $(CFLAGS) $(LDFLAGS) -o $@ \
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$(sort $(filter %.o, $1)) $(filter-out %.o, $1) $(version-obj-y) \
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$(LIBS)," LINK $(TARGET_DIR)$@")
34
LIBTOOL += $(if $(V),,--quiet)
36
$(call quiet-command,$(LIBTOOL) --mode=compile --tag=CC $(CC) $(QEMU_INCLUDES) $(QEMU_CFLAGS) $(QEMU_DGFLAGS) $(CFLAGS) -c -o $@ $<," lt CC $@")
38
$(call quiet-command,$(LIBTOOL) --mode=compile --tag=RC $(WINDRES) -I. -o $@ $<,"lt RC $(TARGET_DIR)$@")
40
$(call quiet-command,$(LIBTOOL) --mode=compile --tag=CC dtrace -o $@ -G -s $<, " lt GEN $(TARGET_DIR)$@")
42
LINK = $(call quiet-command,\
43
$(if $(filter %.lo %.la,$^),$(LIBTOOL) --mode=link --tag=CC \
44
)$(CC) $(QEMU_CFLAGS) $(CFLAGS) $(LDFLAGS) -o $@ \
45
$(sort $(filter %.o, $1)) $(filter-out %.o, $1) \
46
$(if $(filter %.lo %.la,$^),$(version-lobj-y),$(version-obj-y)) \
47
$(if $(filter %.lo %.la,$^),$(LIBTOOLFLAGS)) \
48
$(LIBS),$(if $(filter %.lo %.la,$^),"lt LINK ", " LINK ")"$(TARGET_DIR)$@")
52
$(call quiet-command,$(CPP) $(QEMU_INCLUDES) $(QEMU_CFLAGS) $(QEMU_DGFLAGS) $(CFLAGS) -o $@ $<," CPP $(TARGET_DIR)$@")
55
$(call quiet-command,$(AS) $(ASFLAGS) -o $@ $<," AS $(TARGET_DIR)$@")
58
$(call quiet-command,$(CXX) $(QEMU_INCLUDES) $(QEMU_CXXFLAGS) $(QEMU_DGFLAGS) $(CFLAGS) -c -o $@ $<," CXX $(TARGET_DIR)$@")
61
$(call quiet-command,$(OBJCC) $(QEMU_INCLUDES) $(QEMU_CFLAGS) $(QEMU_DGFLAGS) $(CFLAGS) -c -o $@ $<," OBJC $(TARGET_DIR)$@")
64
$(call quiet-command,dtrace -o $@ -G -s $<, " GEN $(TARGET_DIR)$@")
70
$(call quiet-command,rm -f $@ && $(AR) rcs $@ $^," AR $(TARGET_DIR)$@")
72
quiet-command = $(if $(V),$1,$(if $(2),@echo $2 && $1, @$1))
75
# Usage: CFLAGS+=$(call cc-option, -falign-functions=0, -malign-functions=0)
77
cc-option = $(if $(shell $(CC) $1 $2 -S -o /dev/null -xc /dev/null \
78
>/dev/null 2>&1 && echo OK), $2, $3)
80
VPATH_SUFFIXES = %.c %.h %.S %.cpp %.m %.mak %.texi %.sh %.rc
81
set-vpath = $(if $1,$(foreach PATTERN,$(VPATH_SUFFIXES),$(eval vpath $(PATTERN) $1)))
84
# Usage: $(call find-in-path, prog)
85
# Looks in the PATH if the argument contains no slash, else only considers one
86
# specific directory. Returns an # empty string if the program doesn't exist
88
find-in-path = $(if $(find-string /, $1), \
90
$(wildcard $(patsubst %, %/$1, $(subst :, ,$(PATH)))))
92
# Logical functions (for operating on y/n values like CONFIG_FOO vars)
93
# Inputs to these must be either "y" (true) or "n" or "" (both false)
94
# Output is always either "y" or "n".
95
# Usage: $(call land,$(CONFIG_FOO),$(CONFIG_BAR))
97
lnot = $(if $(subst n,,$1),n,y)
99
land = $(if $(findstring yy,$1$2),y,n)
101
lor = $(if $(findstring y,$1$2),y,n)
102
# Logical XOR (note that this is the inverse of leqv)
103
lxor = $(if $(filter $(call lnot,$1),$(call lnot,$2)),n,y)
104
# Logical equivalence (note that leqv "","n" is true)
105
leqv = $(if $(filter $(call lnot,$1),$(call lnot,$2)),y,n)
106
# Logical if: like make's $(if) but with an leqv-like test
107
lif = $(if $(subst n,,$1),$2,$3)
109
# String testing functions: inputs to these can be any string;
110
# the output is always either "y" or "n". Leading and trailing whitespace
111
# is ignored when comparing strings.
113
eq = $(if $(subst $2,,$1)$(subst $1,,$2),n,y)
115
ne = $(if $(subst $2,,$1)$(subst $1,,$2),y,n)
116
# Emptiness/non-emptiness tests:
117
isempty = $(if $1,n,y)
118
notempty = $(if $1,y,n)
120
# Generate files with tracetool
121
TRACETOOL=$(PYTHON) $(SRC_PATH)/scripts/tracetool.py
123
# Generate timestamp files for .h include files
125
config-%.h: config-%.h-timestamp
126
@cmp $< $@ >/dev/null 2>&1 || cp $< $@
128
config-%.h-timestamp: config-%.mak
129
$(call quiet-command, sh $(SRC_PATH)/scripts/create_config < $< > $@, " GEN $(TARGET_DIR)config-$*.h")
131
.PHONY: clean-timestamp
134
clean: clean-timestamp
136
# will delete the target of a rule if commands exit with a nonzero exit status
139
# magic to descend into other directories
145
$(eval save-$2-$1 = $(value $1))
150
$(eval subdir-$2-$1 := $(if $(filter $2,$(save-$2-$1)),$(addprefix $2,$($1))))
151
$(eval $1 = $(value save-$2-$1) $$(subdir-$2-$1))
152
$(eval save-$2-$1 :=)
156
$(foreach var,$(nested-vars),$(call push-var,$(var),$1/))
157
$(eval obj := $(obj)/$1)
158
$(eval include $(SRC_PATH)/$1/Makefile.objs)
159
$(eval obj := $(patsubst %/$1,%,$(obj)))
160
$(foreach var,$(nested-vars),$(call pop-var,$(var),$1/))
164
$(eval nested-dirs := $(filter-out \
165
$(old-nested-dirs), \
166
$(sort $(foreach var,$(nested-vars), $(filter %/, $($(var)))))))
168
$(foreach dir,$(nested-dirs),$(call unnest-dir,$(patsubst %/,%,$(dir))))
169
$(eval old-nested-dirs := $(old-nested-dirs) $(nested-dirs))
170
$(call unnest-vars-1))
174
$(call unnest-vars-1)
175
$(foreach var,$(nested-vars),$(eval $(var) := $(filter-out %/, $($(var)))))
176
$(shell mkdir -p $(sort $(foreach var,$(nested-vars),$(dir $($(var))))))
177
$(foreach var,$(nested-vars), $(eval \
178
-include $(addsuffix *.d, $(sort $(dir $($(var)))))))