block: implement is_allocated for raw
[qemu.git] / rules.mak
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 %.o: %.c
18 $(call quiet-command,$(CC) $(QEMU_INCLUDES) $(QEMU_CFLAGS) $(QEMU_DGFLAGS) $(CFLAGS) -c -o $@ $<," CC $(TARGET_DIR)$@")
19
20 ifeq ($(LIBTOOL),)
21 %.lo: %.c
22 @echo "missing libtool. please install and rerun configure"; exit 1
23 else
24 %.lo: %.c
25 $(call quiet-command,$(LIBTOOL) --mode=compile --quiet --tag=CC $(CC) $(QEMU_INCLUDES) $(QEMU_CFLAGS) $(QEMU_DGFLAGS) $(CFLAGS) -c -o $@ $<," lt CC $@")
26 endif
27
28 %.o: %.S
29 $(call quiet-command,$(CC) $(QEMU_INCLUDES) $(QEMU_CFLAGS) $(QEMU_DGFLAGS) $(CFLAGS) -c -o $@ $<," AS $(TARGET_DIR)$@")
30
31 %.o: %.m
32 $(call quiet-command,$(CC) $(QEMU_INCLUDES) $(QEMU_CFLAGS) $(QEMU_DGFLAGS) $(CFLAGS) -c -o $@ $<," OBJC $(TARGET_DIR)$@")
33
34 LINK = $(call quiet-command,$(CC) $(QEMU_CFLAGS) $(CFLAGS) $(LDFLAGS) -o $@ $(sort $(1)) $(LIBS)," LINK $(TARGET_DIR)$@")
35
36 %$(EXESUF): %.o
37 $(call LINK,$^)
38
39 %.a:
40 $(call quiet-command,rm -f $@ && $(AR) rcs $@ $^," AR $(TARGET_DIR)$@")
41
42 quiet-command = $(if $(V),$1,$(if $(2),@echo $2 && $1, @$1))
43
44 # cc-option
45 # Usage: CFLAGS+=$(call cc-option, -falign-functions=0, -malign-functions=0)
46
47 cc-option = $(if $(shell $(CC) $1 $2 -S -o /dev/null -xc /dev/null \
48 >/dev/null 2>&1 && echo OK), $2, $3)
49
50 VPATH_SUFFIXES = %.c %.h %.S %.m %.mak %.texi %.sh
51 set-vpath = $(if $1,$(foreach PATTERN,$(VPATH_SUFFIXES),$(eval vpath $(PATTERN) $1)))
52
53 # find-in-path
54 # Usage: $(call find-in-path, prog)
55 # Looks in the PATH if the argument contains no slash, else only considers one
56 # specific directory. Returns an # empty string if the program doesn't exist
57 # there.
58 find-in-path = $(if $(find-string /, $1), \
59 $(wildcard $1), \
60 $(wildcard $(patsubst %, %/$1, $(subst :, ,$(PATH)))))
61
62 # Generate files with tracetool
63 TRACETOOL=$(PYTHON) $(SRC_PATH)/scripts/tracetool.py
64
65 # Generate timestamp files for .h include files
66
67 %.h: %.h-timestamp
68 @test -f $@ || cp $< $@
69
70 %.h-timestamp: %.mak
71 $(call quiet-command, sh $(SRC_PATH)/scripts/create_config < $< > $@, " GEN $*.h")
72 @cmp $@ $*.h >/dev/null 2>&1 || cp $@ $*.h
73
74 # will delete the target of a rule if commands exit with a nonzero exit status
75 .DELETE_ON_ERROR:
76
77 # magic to descend into other directories
78
79 obj := .
80 old-nested-dirs :=
81
82 define push-var
83 $(eval save-$2-$1 = $(value $1))
84 $(eval $1 :=)
85 endef
86
87 define pop-var
88 $(eval subdir-$2-$1 := $(if $(filter $2,$(save-$2-$1)),$(addprefix $2,$($1))))
89 $(eval $1 = $(value save-$2-$1) $$(subdir-$2-$1))
90 $(eval save-$2-$1 :=)
91 endef
92
93 define unnest-dir
94 $(foreach var,$(nested-vars),$(call push-var,$(var),$1/))
95 $(eval obj := $(obj)/$1)
96 $(eval include $(SRC_PATH)/$1/Makefile.objs)
97 $(eval obj := $(patsubst %/$1,%,$(obj)))
98 $(foreach var,$(nested-vars),$(call pop-var,$(var),$1/))
99 endef
100
101 define unnest-vars-1
102 $(eval nested-dirs := $(filter-out \
103 $(old-nested-dirs), \
104 $(sort $(foreach var,$(nested-vars), $(filter %/, $($(var)))))))
105 $(if $(nested-dirs),
106 $(foreach dir,$(nested-dirs),$(call unnest-dir,$(patsubst %/,%,$(dir))))
107 $(eval old-nested-dirs := $(old-nested-dirs) $(nested-dirs))
108 $(call unnest-vars-1))
109 endef
110
111 define unnest-vars
112 $(call unnest-vars-1)
113 $(foreach var,$(nested-vars),$(eval $(var) := $(filter-out %/, $($(var)))))
114 $(shell mkdir -p $(sort $(foreach var,$(nested-vars),$(dir $($(var))))))
115 endef