aboutsummaryrefslogtreecommitdiff
path: root/mk/subdir.mk
blob: 497735d6c7383526be7b7c11155bcdd21175caf6 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
# Input
#
# subdirs	tells the subdirectories to descend
#
# Output
#
# set     srcs gen-srcs
# set     cflags-$(oname) cflags-remove-$(oname)
#         aflags-$(oname) aflags-remove-$(oname)
#         cppflags-$(oname) cppflags-remove-$(oname)
#         incdirs-$(oname)
#         incdirs-lib$(libname)-$(sm)  [if libname is defined]
#         cppflags-lib$(libname)-$(sm) [if libname is defined]
#         cflags-lib$(libname)-$(sm)   [if libname is defined]
# for each file found, oname is the name of the object file for corresponding
# source file

srcs :=
gen-srcs :=
asm-defines-files :=

define process-subdir-srcs-y
ifeq ($$(sub-dir),.)
srcs 				+= $1
oname				:= $(out-dir)/$(base-prefix)$(basename $1).o
else
ifneq ($(filter /%,$(1)),)
# $1 is an absolute path - start with "/"
srcs 				+= $1
oname				:= $(out-dir)/$(base-prefix)$(basename $1).o
else
srcs				+= $(sub-dir)/$1
oname				:= $(out-dir)/$(base-prefix)$(basename $$(sub-dir)/$1).o
endif
endif
cflags-$$(oname) 		:= $$(cflags-y) $$(cflags-$(1)-y)
cflags-remove-$$(oname) 	:= $$(cflags-remove-y) \
					$$(cflags-remove-$(1)-y)
cppflags-$$(oname) 		:= $$(cppflags-y) $$(cppflags-$(1)-y)
cppflags-remove-$$(oname) 	:= $$(cppflags-remove-y) \
					$$(cppflags-remove-$(1)-y)
aflags-$$(oname) 		:= $$(aflags-y) $$(aflags-$(1)-y)
aflags-remove-$$(oname) 	:= $$(aflags-remove-y) \
					$$(aflags-remove-$(1)-y)
incdirs-$$(oname)		:= $$(thissubdir-incdirs) $$(addprefix $(sub-dir)/,$$(incdirs-$(1)-y))
# Clear local filename specific variables to avoid accidental reuse
# in another subdirectory
cflags-$(1)-y 			:=
cflags-remove-$(1)-y		:=
cflags-lib-y			:=
cppflags-$(1)-y			:=
cppflags-remove-$(1)-y		:=
cppflags-lib-y			:=
aflags-$(1)-y 			:=
aflags-remove-$(1)-y		:=
incdirs-$(1)-y			:=
fname				:=
oname				:=
endef #process-subdir-srcs-y

define process-subdir-gensrcs-helper
# $1 gensrc-y element
# $2 full path and name of generated source file
# $3 full path and name of object file compiled from source file
# $4 full path to out directory

gen-srcs			+= $2
oname				:= $3

FORCE-GENSRC$(sm): $2

$$(addprefix $4,$$(produce-additional-$1)): $2

subdir-$2 := $$(sub-dir)
recipe-$2 := $$(recipe-$1)
$2: $$(depends-$1)
	@$(cmd-echo-silent) '  GEN     $2'
	$(q)mkdir -p $4
	$(q)$$(recipe-$2)

cflags-$$(oname) 		:= $$(cflags-y) $$(cflags-$(1)-y)
cflags-remove-$$(oname) 	:= $$(cflags-remove-y) \
					$$(cflags-remove-$(1)-y)
cppflags-$$(oname) 		:= $$(cppflags-y) $$(cppflags-$(1)-y)
cppflags-remove-$$(oname) 	:= $$(cppflags-remove-y) \
					$$(cppflags-remove-$(1)-y)
aflags-$$(oname) 		:= $$(aflags-y) $$(aflags-$(1)-y)
aflags-remove-$$(oname) 	:= $$(aflags-remove-y) \
					$$(aflags-remove-$(1)-y)
incdirs-$$(oname)		:= $$(thissubdir-incdirs) $$(addprefix $(sub-dir)/,$$(incdirs-$(1)-y))
# Clear local filename specific variables to avoid accidental reuse
# in another subdirectory
cflags-$(1)-y 			:=
cflags-remove-$(1)-y		:=
cflags-lib-y			:=
cppflags-$(1)-y			:=
cppflags-remove-$(1)-y		:=
cppflags-lib-y			:=
aflags-$(1)-y 			:=
aflags-remove-$(1)-y		:=
incdirs-$(1)-y			:=
fname				:=
oname				:=

endef #process-subdir-gensrcs-helper

define process-subdir-gensrcs-y
$$(eval $$(call process-subdir-gensrcs-helper,$1,$(sub-dir-out)/$$(produce-$1),$(sub-dir-out)/$(basename $(produce-$1)).o,$(sub-dir-out)))
endef #process-subdir-gensrcs-y

define process-subdir-asm-defines-y
asm-defines-files += $(sub-dir)/$1
endef #process-subdir-asm-defines-y

define process-subdir
sub-dir := $1
ifeq ($1,.)
sub-dir-out := $(out-dir)/$(base-prefix)
else
sub-dir-out := $(out-dir)/$(base-prefix)$1
endif

include $1/sub.mk
sub-subdirs := $$(addprefix $1/,$$(subdirs-y))
incdirs$(sm) := $(incdirs$(sm)) $$(addprefix $1/,$$(global-incdirs-y))
thissubdir-incdirs := $(out-dir)/$(base-prefix)$1 $$(addprefix $1/,$$(incdirs-y))
ifneq ($$(libname),)
incdirs-lib$$(libname)-$$(sm) := $$(incdirs-lib$$(libname)-$$(sm)) $$(addprefix $1/,$$(incdirs-lib-y))
cflags-lib$$(libname)-$$(sm) := $$(cflags-lib$$(libname)-$$(sm)) $$(cflags-lib-y)
cppflags-lib$$(libname)-$$(sm) := $$(cppflags-lib$$(libname)-$$(sm)) $$(cppflags-lib-y)
endif

# Process files in current directory
$$(foreach g, $$(gensrcs-y), $$(eval $$(call process-subdir-gensrcs-y,$$(g))))
$$(foreach s, $$(srcs-y), $$(eval $$(call process-subdir-srcs-y,$$(s))))
$$(foreach a, $$(asm-defines-y), $$(eval $$(call process-subdir-asm-defines-y,$$(a))))
# Clear flags used when processing current directory
srcs-y :=
cflags-y :=
cflags-lib-y :=
cppflags-y :=
cppflags-lib-y :=
aflags-y :=
cflags-remove-y :=
subdirs-y :=
global-incdirs-y :=
incdirs-lib-y :=
incdirs-y :=
gensrcs-y :=
this-out-dir :=
asm-defines-y :=

# Process subdirectories in current directory
$$(foreach sd, $$(sub-subdirs), $$(eval $$(call process-subdir,$$(sd))))
endef #process-subdir

# Top subdirectories
$(foreach sd, $(subdirs), $(eval $(call process-subdir,$(sd))))