bsd.dep.mk revision 273404 
1# $FreeBSD: head/share/mk/bsd.dep.mk 273404 2014-10-21 19:56:45Z bapt $
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} ${DEPFLAGS}' 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 ${SRCS:N*.[dhly]}
77${_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} ${LFLAGS} -o${.TARGET} ${.ALLSRC}
86.if !exists(${.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}
126LDADD+=		-lelf
127DPADD+=		${LIBELF}
128CFLAGS+=	-I${.OBJDIR}
129.endif
130.for _DSRC in ${SRCS:M*.d:N*/*}
131.for _D in ${_DSRC:R}
132DHDRS+=	${_D}.h
133${_D}.h: ${_DSRC}
134	${DTRACE} -xnolibs -h -s ${.ALLSRC}
135SRCS:=	${SRCS:S/^${_DSRC}$//}
136OBJS+=	${_D}.o
137CLEANFILES+= ${_D}.h ${_D}.o
138${_D}.o: ${_DSRC} ${OBJS:S/^${_D}.o$//}
139	${DTRACE} -xnolibs -G -o ${.TARGET} -s ${.ALLSRC}
140.if defined(LIB)
141CLEANFILES+= ${_D}.So ${_D}.po
142${_D}.So: ${_DSRC} ${SOBJS:S/^${_D}.So$//}
143	${DTRACE} -xnolibs -G -o ${.TARGET} -s ${.ALLSRC}
144${_D}.po: ${_DSRC} ${POBJS:S/^${_D}.po$//}
145	${DTRACE} -xnolibs -G -o ${.TARGET} -s ${.ALLSRC}
146.endif
147.endfor
148.endfor
149beforedepend: ${DHDRS}
150beforebuild: ${DHDRS}
151.endif
152
153.if !target(depend)
154.if defined(SRCS)
155depend: beforedepend ${DEPENDFILE} afterdepend
156
157# Tell bmake not to look for generated files via .PATH
158.NOPATH: ${DEPENDFILE}
159
160# Different types of sources are compiled with slightly different flags.
161# Split up the sources, and filter out headers and non-applicable flags.
162MKDEP_CFLAGS=	${CFLAGS:M-nostdinc*} ${CFLAGS:M-[BIDU]*} ${CFLAGS:M-std=*} \
163		${CFLAGS:M-ansi}
164MKDEP_CXXFLAGS=	${CXXFLAGS:M-nostdinc*} ${CXXFLAGS:M-[BIDU]*} \
165		${CXXFLAGS:M-std=*} ${CXXFLAGS:M-ansi} ${CXXFLAGS:M-stdlib=*}
166
167DPSRCS+= ${SRCS}
168${DEPENDFILE}: ${DPSRCS}
169	rm -f ${DEPENDFILE}
170.if !empty(DPSRCS:M*.[cS])
171	${MKDEPCMD} -f ${DEPENDFILE} -a ${MKDEP} \
172	    ${MKDEP_CFLAGS} ${.ALLSRC:M*.[cS]}
173.endif
174.if !empty(DPSRCS:M*.cc) || !empty(DPSRCS:M*.C) || !empty(DPSRCS:M*.cpp) || \
175    !empty(DPSRCS:M*.cxx)
176	${MKDEPCMD} -f ${DEPENDFILE} -a ${MKDEP} \
177	    ${MKDEP_CXXFLAGS} \
178	    ${.ALLSRC:M*.cc} ${.ALLSRC:M*.C} ${.ALLSRC:M*.cpp} ${.ALLSRC:M*.cxx}
179.endif
180.if target(_EXTRADEPEND)
181_EXTRADEPEND: .USE
182${DEPENDFILE}: _EXTRADEPEND
183.endif
184
185.ORDER: ${DEPENDFILE} afterdepend
186.else
187depend: beforedepend afterdepend
188.endif
189.if !target(beforedepend)
190beforedepend:
191.else
192.ORDER: beforedepend ${DEPENDFILE}
193.ORDER: beforedepend afterdepend
194.endif
195.if !target(afterdepend)
196afterdepend:
197.endif
198.endif
199
200.if !target(cleandepend)
201cleandepend:
202.if defined(SRCS)
203.if ${CTAGS:T} == "gtags"
204	rm -f ${DEPENDFILE} GPATH GRTAGS GSYMS GTAGS
205.if defined(HTML)
206	rm -rf HTML
207.endif
208.else
209	rm -f ${DEPENDFILE} tags
210.endif
211.endif
212.endif
213
214.if !target(checkdpadd) && (defined(DPADD) || defined(LDADD))
215_LDADD_FROM_DPADD=	${DPADD:R:T:C;^lib(.*)$;-l\1;g}
216# Ignore -Wl,--start-group/-Wl,--end-group as it might be required in the
217# LDADD list due to unresolved symbols
218_LDADD_CANONICALIZED=	${LDADD:N:R:T:C;^lib(.*)$;-l\1;g:N-Wl,--[es]*-group}
219checkdpadd:
220.if ${_LDADD_FROM_DPADD} != ${_LDADD_CANONICALIZED}
221	@echo ${.CURDIR}
222	@echo "DPADD -> ${_LDADD_FROM_DPADD}"
223	@echo "LDADD -> ${_LDADD_CANONICALIZED}"
224.endif
225.endif
226