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1 | ||
2 | # Don't use implicit rules or variables | |
3 | # we have explicit rules for everything | |
4 | MAKEFLAGS += -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 | |
15 | QEMU_DGFLAGS += -MMD -MP -MT $@ -MF $(*D)/$(*F).d | |
16 | ||
17 | # Same as -I$(SRC_PATH) -I., but for the nested source/object directories | |
18 | QEMU_INCLUDES += -I$(<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 | %.o: %.rc | |
23 | $(call quiet-command,$(WINDRES) -I. -o $@ $<," RC $(TARGET_DIR)$@") | |
24 | ||
25 | Makefile: $(version-obj-y) | |
26 | ||
27 | ifeq ($(LIBTOOL),) | |
28 | LIBTOOL = /bin/false | |
29 | LINK = $(call quiet-command,$(CC) $(QEMU_CFLAGS) $(CFLAGS) $(LDFLAGS) -o $@ \ | |
30 | $(sort $(filter %.o, $1)) $(filter-out %.o, $1) $(version-obj-y) \ | |
31 | $(LIBS)," LINK $(TARGET_DIR)$@") | |
32 | else | |
33 | Makefile: $(version-lobj-y) | |
34 | LIBTOOL += $(if $(V),,--quiet) | |
35 | %.lo: %.c | |
36 | $(call quiet-command,$(LIBTOOL) --mode=compile --tag=CC $(CC) $(QEMU_INCLUDES) $(QEMU_CFLAGS) $(QEMU_DGFLAGS) $(CFLAGS) -c -o $@ $<," lt CC $@") | |
37 | %.lo: %.rc | |
38 | $(call quiet-command,$(LIBTOOL) --mode=compile --tag=RC $(WINDRES) -I. -o $@ $<,"lt RC $(TARGET_DIR)$@") | |
39 | %.lo: %.dtrace | |
40 | $(call quiet-command,$(LIBTOOL) --mode=compile --tag=CC dtrace -o $@ -G -s $<, " lt GEN $(TARGET_DIR)$@") | |
41 | ||
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 ")"$(TARGET_DIR)$@") | |
49 | endif | |
50 | ||
51 | %.asm: %.S | |
52 | $(call quiet-command,$(CPP) $(QEMU_INCLUDES) $(QEMU_CFLAGS) $(QEMU_DGFLAGS) $(CFLAGS) -o $@ $<," CPP $(TARGET_DIR)$@") | |
53 | ||
54 | %.o: %.asm | |
55 | $(call quiet-command,$(AS) $(ASFLAGS) -o $@ $<," AS $(TARGET_DIR)$@") | |
56 | ||
57 | %.o: %.m | |
58 | $(call quiet-command,$(OBJCC) $(QEMU_INCLUDES) $(QEMU_CFLAGS) $(QEMU_DGFLAGS) $(CFLAGS) -c -o $@ $<," OBJC $(TARGET_DIR)$@") | |
59 | ||
60 | %.o: %.dtrace | |
61 | $(call quiet-command,dtrace -o $@ -G -s $<, " GEN $(TARGET_DIR)$@") | |
62 | ||
63 | %$(EXESUF): %.o | |
64 | $(call LINK,$^) | |
65 | ||
66 | %.a: | |
67 | $(call quiet-command,rm -f $@ && $(AR) rcs $@ $^," AR $(TARGET_DIR)$@") | |
68 | ||
69 | quiet-command = $(if $(V),$1,$(if $(2),@echo $2 && $1, @$1)) | |
70 | ||
71 | # cc-option | |
72 | # Usage: CFLAGS+=$(call cc-option, -falign-functions=0, -malign-functions=0) | |
73 | ||
74 | cc-option = $(if $(shell $(CC) $1 $2 -S -o /dev/null -xc /dev/null \ | |
75 | >/dev/null 2>&1 && echo OK), $2, $3) | |
76 | ||
77 | VPATH_SUFFIXES = %.c %.h %.S %.m %.mak %.texi %.sh | |
78 | set-vpath = $(if $1,$(foreach PATTERN,$(VPATH_SUFFIXES),$(eval vpath $(PATTERN) $1))) | |
79 | ||
80 | # find-in-path | |
81 | # Usage: $(call find-in-path, prog) | |
82 | # Looks in the PATH if the argument contains no slash, else only considers one | |
83 | # specific directory. Returns an # empty string if the program doesn't exist | |
84 | # there. | |
85 | find-in-path = $(if $(find-string /, $1), \ | |
86 | $(wildcard $1), \ | |
87 | $(wildcard $(patsubst %, %/$1, $(subst :, ,$(PATH))))) | |
88 | ||
89 | # Generate files with tracetool | |
90 | TRACETOOL=$(PYTHON) $(SRC_PATH)/scripts/tracetool.py | |
91 | ||
92 | # Generate timestamp files for .h include files | |
93 | ||
94 | config-%.h: config-%.h-timestamp | |
95 | @cmp $< $@ >/dev/null 2>&1 || cp $< $@ | |
96 | ||
97 | config-%.h-timestamp: config-%.mak | |
98 | $(call quiet-command, sh $(SRC_PATH)/scripts/create_config < $< > $@, " GEN $(TARGET_DIR)config-$*.h") | |
99 | ||
100 | .PHONY: clean-timestamp | |
101 | clean-timestamp: | |
102 | rm -f *.timestamp | |
103 | clean: clean-timestamp | |
104 | ||
105 | # will delete the target of a rule if commands exit with a nonzero exit status | |
106 | .DELETE_ON_ERROR: | |
107 | ||
108 | # magic to descend into other directories | |
109 | ||
110 | obj := . | |
111 | old-nested-dirs := | |
112 | ||
113 | define push-var | |
114 | $(eval save-$2-$1 = $(value $1)) | |
115 | $(eval $1 :=) | |
116 | endef | |
117 | ||
118 | define pop-var | |
119 | $(eval subdir-$2-$1 := $(if $(filter $2,$(save-$2-$1)),$(addprefix $2,$($1)))) | |
120 | $(eval $1 = $(value save-$2-$1) $$(subdir-$2-$1)) | |
121 | $(eval save-$2-$1 :=) | |
122 | endef | |
123 | ||
124 | define unnest-dir | |
125 | $(foreach var,$(nested-vars),$(call push-var,$(var),$1/)) | |
126 | $(eval obj := $(obj)/$1) | |
127 | $(eval include $(SRC_PATH)/$1/Makefile.objs) | |
128 | $(eval obj := $(patsubst %/$1,%,$(obj))) | |
129 | $(foreach var,$(nested-vars),$(call pop-var,$(var),$1/)) | |
130 | endef | |
131 | ||
132 | define unnest-vars-1 | |
133 | $(eval nested-dirs := $(filter-out \ | |
134 | $(old-nested-dirs), \ | |
135 | $(sort $(foreach var,$(nested-vars), $(filter %/, $($(var))))))) | |
136 | $(if $(nested-dirs), | |
137 | $(foreach dir,$(nested-dirs),$(call unnest-dir,$(patsubst %/,%,$(dir)))) | |
138 | $(eval old-nested-dirs := $(old-nested-dirs) $(nested-dirs)) | |
139 | $(call unnest-vars-1)) | |
140 | endef | |
141 | ||
142 | define unnest-vars | |
143 | $(call unnest-vars-1) | |
144 | $(foreach var,$(nested-vars),$(eval $(var) := $(filter-out %/, $($(var))))) | |
145 | $(shell mkdir -p $(sort $(foreach var,$(nested-vars),$(dir $($(var)))))) | |
146 | $(foreach var,$(nested-vars), $(eval \ | |
147 | -include $(addsuffix *.d, $(sort $(dir $($(var))))))) | |
148 | endef |