bsd.dep.mk revision 268541 
1# $FreeBSD: head/share/mk/bsd.dep.mk 268541 2014-07-12 00:54:34Z rpaulo $
2#
3# The include file <bsd.dep.mk> handles Makefile dependencies.
4#
5#
6# +++ variables +++
7#
8# CTAGS		A tags file generation program [gtags]
9#
10# CTAGSFLAGS	Options for ctags(1) [not set]
11#
12# DEPENDFILE	dependencies file [.depend]
13#
14# GTAGSFLAGS	Options for gtags(1) [-o]
15#
16# HTAGSFLAGS	Options for htags(1) [not set]
17#
18# MKDEP		Options for ${MKDEPCMD} [not set]
19#
20# MKDEPCMD	Makefile dependency list program [mkdep]
21#
22# SRCS          List of source files (c, c++, assembler)
23#
24# DPSRCS	List of source files which are needed for generating
25#		dependencies, ${SRCS} are always part of it.
26#
27# +++ targets +++
28#
29#	cleandepend:
30#		Remove depend and tags file
31#
32#	depend:
33#		Make the dependencies for the source files, and store
34#		them in the file ${DEPENDFILE}.
35#
36#	tags:
37#		In "ctags" mode, create a tags file for the source files.
38#		In "gtags" mode, create a (GLOBAL) gtags file for the
39#		source files.  If HTML is defined, htags(1) is also run
40#		after gtags(1).
41
42.if !target(__<bsd.init.mk>__)
43.error bsd.dep.mk cannot be included directly.
44.endif
45
46CTAGS?=		gtags
47CTAGSFLAGS?=
48GTAGSFLAGS?=	-o
49HTAGSFLAGS?=
50
51.if ${CC} != "cc"
52MKDEPCMD?=	CC='${CC}' mkdep
53.else
54MKDEPCMD?=	mkdep
55.endif
56DEPENDFILE?=	.depend
57
58# Keep `tags' here, before SRCS are mangled below for `depend'.
59.if !target(tags) && defined(SRCS) && !defined(NO_TAGS)
60tags: ${SRCS}
61.if ${CTAGS:T} == "gtags"
62	@cd ${.CURDIR} && ${CTAGS} ${GTAGSFLAGS} ${.OBJDIR}
63.if defined(HTML)
64	@cd ${.CURDIR} && htags ${HTAGSFLAGS} -d ${.OBJDIR} ${.OBJDIR}
65.endif
66.else
67	@${CTAGS} ${CTAGSFLAGS} -f /dev/stdout \
68	    ${.ALLSRC:N*.h} | sed "s;${.CURDIR}/;;" > ${.TARGET}
69.endif
70.endif
71
72.if defined(SRCS)
73CLEANFILES?=
74
75.if !exists(${.OBJDIR}/${DEPENDFILE})
76.for _S in ${SRCS:N*.[hly]}
77${_S:R}.o: ${_S}
78.endfor
79.endif
80
81# Lexical analyzers
82.for _LSRC in ${SRCS:M*.l:N*/*}
83.for _LC in ${_LSRC:R}.c
84${_LC}: ${_LSRC}
85	${LEX} -t ${LFLAGS} ${.ALLSRC} > ${.TARGET}
86.if !exists(${.OBJDIR}/${DEPENDFILE})
87${_LC:R}.o: ${_LC}
88.endif
89SRCS:=	${SRCS:S/${_LSRC}/${_LC}/}
90CLEANFILES+= ${_LC}
91.endfor
92.endfor
93
94# Yacc grammars
95.for _YSRC in ${SRCS:M*.y:N*/*}
96.for _YC in ${_YSRC:R}.c
97SRCS:=	${SRCS:S/${_YSRC}/${_YC}/}
98CLEANFILES+= ${_YC}
99.if !empty(YFLAGS:M-d) && !empty(SRCS:My.tab.h)
100.ORDER: ${_YC} y.tab.h
101${_YC} y.tab.h: ${_YSRC}
102	${YACC} ${YFLAGS} ${.ALLSRC}
103	cp y.tab.c ${_YC}
104CLEANFILES+= y.tab.c y.tab.h
105.elif !empty(YFLAGS:M-d)
106.for _YH in ${_YC:R}.h
107${_YH}: ${_YC}
108${_YC}: ${_YSRC}
109	${YACC} ${YFLAGS} -o ${_YC} ${.ALLSRC}
110SRCS+=	${_YH}
111CLEANFILES+= ${_YH}
112.endfor
113.else
114${_YC}: ${_YSRC}
115	${YACC} ${YFLAGS} -o ${_YC} ${.ALLSRC}
116.endif
117.if !exists(${.OBJDIR}/${DEPENDFILE})
118${_YC:R}.o: ${_YC}
119.endif
120.endfor
121.endfor
122
123# DTrace probe definitions
124# libelf is currently needed for drti.o
125.if ${SRCS:M*.d}
126LDFLAGS+=	-lelf
127LDADD+=		${LIBELF}
128CFLAGS+=	-D_DTRACE_VERSION=1
129.endif
130.for _DSRC in ${SRCS:M*.d:N*/*}
131.for _D in ${_DSRC:R}
132${_D}.h: ${_DSRC}
133	${DTRACE} -xnolibs -h -s ${.ALLSRC}
134SRCS:=	${SRCS:S/${_DSRC}/${_D}.h/}
135${_D}.o: ${_D}.h ${_DSRC} ${OBJS} ${SOBJS}
136	${DTRACE} -xnolibs -G -o ${.TARGET} -s ${_DSRC} \
137		${OBJS:S/${_D}.o//} ${SOBJS:S/${_D}.o//}
138CLEANFILES+= ${_D}.h ${_D}.o
139.if defined(PROG)
140OBJS+=	${_D:R}.o
141.else
142SOBJS+=	${_D:R}.o
143.endif
144.endfor
145.endfor
146.endif
147
148.if !target(depend)
149.if defined(SRCS)
150depend: beforedepend ${DEPENDFILE} afterdepend
151
152# Tell bmake not to look for generated files via .PATH
153.NOPATH: ${DEPENDFILE}
154
155# Different types of sources are compiled with slightly different flags.
156# Split up the sources, and filter out headers and non-applicable flags.
157MKDEP_CFLAGS=	${CFLAGS:M-nostdinc*} ${CFLAGS:M-[BIDU]*} ${CFLAGS:M-std=*} \
158		${CFLAGS:M-ansi}
159MKDEP_CXXFLAGS=	${CXXFLAGS:M-nostdinc*} ${CXXFLAGS:M-[BIDU]*} \
160		${CXXFLAGS:M-std=*} ${CXXFLAGS:M-ansi} ${CXXFLAGS:M-stdlib=*}
161
162DPSRCS+= ${SRCS}
163${DEPENDFILE}: ${DPSRCS}
164	rm -f ${DEPENDFILE}
165.if !empty(DPSRCS:M*.[cS])
166	${MKDEPCMD} -f ${DEPENDFILE} -a ${MKDEP} \
167	    ${MKDEP_CFLAGS} ${.ALLSRC:M*.[cS]}
168.endif
169.if !empty(DPSRCS:M*.cc) || !empty(DPSRCS:M*.C) || !empty(DPSRCS:M*.cpp) || \
170    !empty(DPSRCS:M*.cxx)
171	${MKDEPCMD} -f ${DEPENDFILE} -a ${MKDEP} \
172	    ${MKDEP_CXXFLAGS} \
173	    ${.ALLSRC:M*.cc} ${.ALLSRC:M*.C} ${.ALLSRC:M*.cpp} ${.ALLSRC:M*.cxx}
174.endif
175.if target(_EXTRADEPEND)
176_EXTRADEPEND: .USE
177${DEPENDFILE}: _EXTRADEPEND
178.endif
179
180.ORDER: ${DEPENDFILE} afterdepend
181.else
182depend: beforedepend afterdepend
183.endif
184.if !target(beforedepend)
185beforedepend:
186.else
187.ORDER: beforedepend ${DEPENDFILE}
188.ORDER: beforedepend afterdepend
189.endif
190.if !target(afterdepend)
191afterdepend:
192.endif
193.endif
194
195.if !target(cleandepend)
196cleandepend:
197.if defined(SRCS)
198.if ${CTAGS:T} == "gtags"
199	rm -f ${DEPENDFILE} GPATH GRTAGS GSYMS GTAGS
200.if defined(HTML)
201	rm -rf HTML
202.endif
203.else
204	rm -f ${DEPENDFILE} tags
205.endif
206.endif
207.endif
208
209.if !target(checkdpadd) && (defined(DPADD) || defined(LDADD))
210_LDADD_FROM_DPADD=	${DPADD:C;^/usr/lib/lib(.*)\.a$;-l\1;}
211_LDADD_CANONICALIZED=	${LDADD:S/$//}
212checkdpadd:
213.if ${_LDADD_FROM_DPADD} != ${_LDADD_CANONICALIZED}
214	@echo ${.CURDIR}
215	@echo "DPADD -> ${_LDADD_FROM_DPADD}"
216	@echo "LDADD -> ${_LDADD_CANONICALIZED}"
217.endif
218.endif
219