1# $FreeBSD$ 2# 3# The include file <bsd.dep.mk> handles Makefile dependencies. 4# 5# 6# +++ variables +++ 7# 8# CLEANDEPENDDIRS Additional directories to remove for the cleandepend 9# target. 10# 11# CLEANDEPENDFILES Additional files to remove for the cleandepend target. 12# 13# CTAGS A tags file generation program [gtags] 14# 15# CTAGSFLAGS Options for ctags(1) [not set] 16# 17# DEPENDFILE dependencies file [.depend] 18# 19# GTAGSFLAGS Options for gtags(1) [-o] 20# 21# HTAGSFLAGS Options for htags(1) [not set] 22# 23# SRCS List of source files (c, c++, assembler) 24# 25# DPSRCS List of source files which are needed for generating 26# dependencies, ${SRCS} are always part of it. 27# 28# +++ targets +++ 29# 30# cleandepend: 31# remove ${CLEANDEPENDFILES}; remove ${CLEANDEPENDDIRS} and all 32# contents. 33# 34# depend: 35# Make the dependencies for the source files, and store 36# them in the file ${DEPENDFILE}. 37# 38# tags: 39# In "ctags" mode, create a tags file for the source files. 40# In "gtags" mode, create a (GLOBAL) gtags file for the 41# source files. If HTML is defined, htags(1) is also run 42# after gtags(1). 43 44.if !target(__<bsd.init.mk>__) 45.error bsd.dep.mk cannot be included directly. 46.endif 47 48CTAGS?= gtags 49CTAGSFLAGS?= 50GTAGSFLAGS?= -o 51HTAGSFLAGS?= 52 53.if ${MK_DIRDEPS_BUILD} == "no" 54.MAKE.DEPENDFILE= ${DEPENDFILE} 55.endif 56CLEANDEPENDFILES+= ${DEPENDFILE} ${DEPENDFILE}.* 57.if ${MK_META_MODE} == "yes" 58CLEANDEPENDFILES+= *.meta 59.endif 60 61# Keep `tags' here, before SRCS are mangled below for `depend'. 62.if !target(tags) && defined(SRCS) && !defined(NO_TAGS) 63tags: ${SRCS} 64.if ${CTAGS:T} == "gtags" 65 @cd ${.CURDIR} && ${CTAGS} ${GTAGSFLAGS} ${.OBJDIR} 66.if defined(HTML) 67 @cd ${.CURDIR} && htags ${HTAGSFLAGS} -d ${.OBJDIR} ${.OBJDIR} 68.endif 69.else 70 @${CTAGS} ${CTAGSFLAGS} -f /dev/stdout \ 71 ${.ALLSRC:N*.h} | sed "s;${.CURDIR}/;;" > ${.TARGET} 72.endif 73.endif 74 75# Skip reading .depend when not needed to speed up tree-walks 76# and simple lookups. 77.if !empty(.MAKEFLAGS:M-V${_V_READ_DEPEND}) || make(obj) || make(clean*) || \ 78 make(install*) || make(analyze) 79_SKIP_READ_DEPEND= 1 80.if ${MK_DIRDEPS_BUILD} == "no" 81.MAKE.DEPENDFILE= /dev/null 82.endif 83.endif 84 85.if defined(SRCS) 86CLEANFILES?= 87 88.for _S in ${SRCS:N*.[dhly]} 89OBJS_DEPEND_GUESS.${_S:R}.o= ${_S} 90.endfor 91 92# Lexical analyzers 93.for _LSRC in ${SRCS:M*.l:N*/*} 94.for _LC in ${_LSRC:R}.c 95${_LC}: ${_LSRC} 96 ${LEX} ${LFLAGS} -o${.TARGET} ${.ALLSRC} 97OBJS_DEPEND_GUESS.${_LC:R}.o= ${_LC} 98SRCS:= ${SRCS:S/${_LSRC}/${_LC}/} 99CLEANFILES+= ${_LC} 100.endfor 101.endfor 102 103# Yacc grammars 104.for _YSRC in ${SRCS:M*.y:N*/*} 105.for _YC in ${_YSRC:R}.c 106SRCS:= ${SRCS:S/${_YSRC}/${_YC}/} 107CLEANFILES+= ${_YC} 108.if !empty(YFLAGS:M-d) && !empty(SRCS:My.tab.h) 109.ORDER: ${_YC} y.tab.h 110y.tab.h: .NOMETA 111${_YC} y.tab.h: ${_YSRC} 112 ${YACC} ${YFLAGS} ${.ALLSRC} 113 cp y.tab.c ${_YC} 114CLEANFILES+= y.tab.c y.tab.h 115.elif !empty(YFLAGS:M-d) 116.for _YH in ${_YC:R}.h 117.ORDER: ${_YC} ${_YH} 118${_YH}: .NOMETA 119${_YC} ${_YH}: ${_YSRC} 120 ${YACC} ${YFLAGS} -o ${_YC} ${.ALLSRC} 121SRCS+= ${_YH} 122CLEANFILES+= ${_YH} 123.endfor 124.else 125${_YC}: ${_YSRC} 126 ${YACC} ${YFLAGS} -o ${_YC} ${.ALLSRC} 127.endif 128OBJS_DEPEND_GUESS.${_YC:R}.o= ${_YC} 129.endfor 130.endfor 131 132# DTrace probe definitions 133.if ${SRCS:M*.d} 134CFLAGS+= -I${.OBJDIR} 135.endif 136.for _DSRC in ${SRCS:M*.d:N*/*} 137.for _D in ${_DSRC:R} 138SRCS+= ${_D}.h 139${_D}.h: ${_DSRC} 140 ${DTRACE} ${DTRACEFLAGS} -h -s ${.ALLSRC} 141SRCS:= ${SRCS:S/^${_DSRC}$//} 142OBJS+= ${_D}.o 143CLEANFILES+= ${_D}.h ${_D}.o 144${_D}.o: ${_DSRC} ${OBJS:S/^${_D}.o$//} 145 @rm -f ${.TARGET} 146 ${DTRACE} ${DTRACEFLAGS} -G -o ${.TARGET} -s ${.ALLSRC:N*.h} 147.if defined(LIB) 148CLEANFILES+= ${_D}.So ${_D}.po 149${_D}.So: ${_DSRC} ${SOBJS:S/^${_D}.So$//} 150 @rm -f ${.TARGET} 151 ${DTRACE} ${DTRACEFLAGS} -G -o ${.TARGET} -s ${.ALLSRC:N*.h} 152${_D}.po: ${_DSRC} ${POBJS:S/^${_D}.po$//} 153 @rm -f ${.TARGET} 154 ${DTRACE} ${DTRACEFLAGS} -G -o ${.TARGET} -s ${.ALLSRC:N*.h} 155.endif 156.endfor 157.endfor 158 159 160.if !empty(.MAKE.MODE:Mmeta) && empty(.MAKE.MODE:Mnofilemon) 161_meta_filemon= 1 162.endif 163.if ${MAKE_VERSION} < 20160220 164DEPEND_MP?= -MP 165.endif 166# Handle OBJS=../somefile.o hacks. Just replace '/' rather than use :T to 167# avoid collisions. 168DEPEND_FILTER= C,/,_,g 169DEPENDSRCS= ${SRCS:M*.[cSC]} ${SRCS:M*.cxx} ${SRCS:M*.cpp} ${SRCS:M*.cc} 170.if !empty(DEPENDSRCS) 171DEPENDOBJS+= ${DEPENDSRCS:R:S,$,.o,} 172.endif 173DEPENDFILES_OBJS= ${DEPENDOBJS:O:u:${DEPEND_FILTER}:C/^/${DEPENDFILE}./} 174DEPEND_CFLAGS+= -MD ${DEPEND_MP} -MF${DEPENDFILE}.${.TARGET:${DEPEND_FILTER}} 175DEPEND_CFLAGS+= -MT${.TARGET} 176# Skip generating or including .depend.* files if in meta+filemon mode since 177# it will track dependencies itself. OBJS_DEPEND_GUESS is still used though. 178.if !defined(_meta_filemon) 179.if defined(.PARSEDIR) 180# Only add in DEPEND_CFLAGS for CFLAGS on files we expect from DEPENDOBJS 181# as those are the only ones we will include. 182DEPEND_CFLAGS_CONDITION= "${DEPENDOBJS:M${.TARGET:${DEPEND_FILTER}}}" != "" 183CFLAGS+= ${${DEPEND_CFLAGS_CONDITION}:?${DEPEND_CFLAGS}:} 184.else 185CFLAGS+= ${DEPEND_CFLAGS} 186.endif 187.if !defined(_SKIP_READ_DEPEND) 188.for __depend_obj in ${DEPENDFILES_OBJS} 189.if ${MAKE_VERSION} < 20160220 190.sinclude "${.OBJDIR}/${__depend_obj}" 191.else 192.dinclude "${.OBJDIR}/${__depend_obj}" 193.endif 194.endfor 195.endif # !defined(_SKIP_READ_DEPEND) 196.endif # !defined(_meta_filemon) 197.endif # defined(SRCS) 198 199.if ${MK_DIRDEPS_BUILD} == "yes" 200# Prevent meta.autodep.mk from tracking "local dependencies". 201.depend: 202.include <meta.autodep.mk> 203# If using filemon then _EXTRADEPEND is skipped since it is not needed. 204.if empty(.MAKE.MODE:Mnofilemon) 205# this depend: bypasses that below 206# the dependency helps when bootstrapping 207depend: beforedepend ${DPSRCS} ${SRCS} afterdepend 208beforedepend: 209afterdepend: beforedepend 210.endif 211.endif 212 213# Guess some dependencies for when no ${DEPENDFILE}.OBJ is generated yet. 214# For meta+filemon the .meta file is checked for since it is the dependency 215# file used. 216.for __obj in ${DEPENDOBJS:O:u} 217.if (defined(_meta_filemon) && !exists(${.OBJDIR}/${__obj}.meta)) || \ 218 (!defined(_meta_filemon) && !exists(${.OBJDIR}/${DEPENDFILE}.${__obj})) 219${__obj}: ${OBJS_DEPEND_GUESS} 220${__obj}: ${OBJS_DEPEND_GUESS.${__obj}} 221.elif defined(_meta_filemon) 222# For meta mode we still need to know which file to depend on to avoid 223# ambiguous suffix transformation rules from .PATH. Meta mode does not 224# use .depend files. We really only need source files, not headers. 225${__obj}: ${OBJS_DEPEND_GUESS:N*.h} 226${__obj}: ${OBJS_DEPEND_GUESS.${__obj}:N*.h} 227.endif 228.endfor 229 230# Always run 'make depend' to generate dependencies early and to avoid the 231# need for manually running it. The dirdeps build should only do this in 232# sub-makes though since MAKELEVEL0 is for dirdeps calculations. 233.if ${MK_DIRDEPS_BUILD} == "no" || ${.MAKE.LEVEL} > 0 234beforebuild: depend 235.endif 236 237.if !target(depend) 238.if defined(SRCS) 239depend: beforedepend ${DEPENDFILE} afterdepend 240 241# Tell bmake not to look for generated files via .PATH 242.NOPATH: ${DEPENDFILE} ${DEPENDFILES_OBJS} 243 244DPSRCS+= ${SRCS} 245# A .depend file will only be generated if there are commands in 246# beforedepend/_EXTRADEPEND/afterdepend. The target is kept 247# to allow 'make depend' to generate files. 248${DEPENDFILE}: ${DPSRCS} 249.if exists(${.OBJDIR}/${DEPENDFILE}) || \ 250 ((commands(beforedepend) || commands(_EXTRADEPEND) || \ 251 commands(afterdepend)) && !empty(.MAKE.MODE:Mmeta)) 252 rm -f ${DEPENDFILE} 253.endif 254.if target(_EXTRADEPEND) 255_EXTRADEPEND: .USE 256${DEPENDFILE}: _EXTRADEPEND 257.endif 258 259.ORDER: ${DEPENDFILE} afterdepend 260.else 261depend: beforedepend afterdepend 262.endif 263.if !target(beforedepend) 264beforedepend: 265.else 266.ORDER: beforedepend ${DEPENDFILE} 267.ORDER: beforedepend afterdepend 268.endif 269.if !target(afterdepend) 270afterdepend: 271.endif 272.endif 273 274.if defined(SRCS) 275.if ${CTAGS:T} == "gtags" 276CLEANDEPENDFILES+= GPATH GRTAGS GSYMS GTAGS 277.if defined(HTML) 278CLEANDEPENDDIRS+= HTML 279.endif 280.else 281CLEANDEPENDFILES+= tags 282.endif 283.endif 284.if !target(cleandepend) 285cleandepend: 286.if !empty(CLEANDEPENDFILES) 287 rm -f ${CLEANDEPENDFILES} 288.endif 289.if !empty(CLEANDEPENDDIRS) 290 rm -rf ${CLEANDEPENDDIRS} 291.endif 292.endif 293 294.if !target(checkdpadd) && (defined(DPADD) || defined(LDADD)) 295_LDADD_FROM_DPADD= ${DPADD:R:T:C;^lib(.*)$;-l\1;g} 296# Ignore -Wl,--start-group/-Wl,--end-group as it might be required in the 297# LDADD list due to unresolved symbols 298_LDADD_CANONICALIZED= ${LDADD:N:R:T:C;^lib(.*)$;-l\1;g:N-Wl,--[es]*-group} 299checkdpadd: 300.if ${_LDADD_FROM_DPADD} != ${_LDADD_CANONICALIZED} 301 @echo ${.CURDIR} 302 @echo "DPADD -> ${_LDADD_FROM_DPADD}" 303 @echo "LDADD -> ${_LDADD_CANONICALIZED}" 304.endif 305.endif 306