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: ${_YC} y.tab.h 110${_YC} y.tab.h: ${_YSRC} 111 ${YACC} ${YFLAGS} ${.ALLSRC} 112 cp y.tab.c ${_YC} 113CLEANFILES+= y.tab.c y.tab.h 114.elif !empty(YFLAGS:M-d) 115.for _YH in ${_YC:R}.h 116.ORDER: ${_YC} ${_YH} 117${_YC} ${_YH}: ${_YSRC} 118 ${YACC} ${YFLAGS} -o ${_YC} ${.ALLSRC} 119SRCS+= ${_YH} 120CLEANFILES+= ${_YH} 121.endfor 122.else 123${_YC}: ${_YSRC} 124 ${YACC} ${YFLAGS} -o ${_YC} ${.ALLSRC} 125.endif 126OBJS_DEPEND_GUESS.${_YC:R}.o= ${_YC} 127.endfor 128.endfor 129 130# DTrace probe definitions 131.if ${SRCS:M*.d} 132CFLAGS+= -I${.OBJDIR} 133.endif 134.for _DSRC in ${SRCS:M*.d:N*/*} 135.for _D in ${_DSRC:R} 136SRCS+= ${_D}.h 137${_D}.h: ${_DSRC} 138 ${DTRACE} ${DTRACEFLAGS} -h -s ${.ALLSRC} 139SRCS:= ${SRCS:S/^${_DSRC}$//} 140OBJS+= ${_D}.o 141CLEANFILES+= ${_D}.h ${_D}.o 142${_D}.o: ${_DSRC} ${OBJS:S/^${_D}.o$//} 143 @rm -f ${.TARGET} 144 ${DTRACE} ${DTRACEFLAGS} -G -o ${.TARGET} -s ${.ALLSRC:N*.h} 145.if defined(LIB) 146CLEANFILES+= ${_D}.So ${_D}.po 147${_D}.So: ${_DSRC} ${SOBJS:S/^${_D}.So$//} 148 @rm -f ${.TARGET} 149 ${DTRACE} ${DTRACEFLAGS} -G -o ${.TARGET} -s ${.ALLSRC:N*.h} 150${_D}.po: ${_DSRC} ${POBJS:S/^${_D}.po$//} 151 @rm -f ${.TARGET} 152 ${DTRACE} ${DTRACEFLAGS} -G -o ${.TARGET} -s ${.ALLSRC:N*.h} 153.endif 154.endfor 155.endfor 156 157 158.if !empty(.MAKE.MODE:Mmeta) && empty(.MAKE.MODE:Mnofilemon) 159_meta_filemon= 1 160.endif 161.if ${MAKE_VERSION} < 20160220 162DEPEND_MP?= -MP 163.endif 164# Handle OBJS=../somefile.o hacks. Just replace '/' rather than use :T to 165# avoid collisions. 166DEPEND_FILTER= C,/,_,g 167DEPENDSRCS= ${SRCS:M*.[cSC]} ${SRCS:M*.cxx} ${SRCS:M*.cpp} ${SRCS:M*.cc} 168.if !empty(DEPENDSRCS) 169DEPENDOBJS+= ${DEPENDSRCS:R:S,$,.o,} 170.endif 171DEPENDFILES_OBJS= ${DEPENDOBJS:O:u:${DEPEND_FILTER}:C/^/${DEPENDFILE}./} 172DEPEND_CFLAGS+= -MD ${DEPEND_MP} -MF${DEPENDFILE}.${.TARGET:${DEPEND_FILTER}} 173DEPEND_CFLAGS+= -MT${.TARGET} 174# Skip generating or including .depend.* files if in meta+filemon mode since 175# it will track dependencies itself. OBJS_DEPEND_GUESS is still used though. 176.if !defined(_meta_filemon) 177.if defined(.PARSEDIR) 178# Only add in DEPEND_CFLAGS for CFLAGS on files we expect from DEPENDOBJS 179# as those are the only ones we will include. 180DEPEND_CFLAGS_CONDITION= "${DEPENDOBJS:M${.TARGET:${DEPEND_FILTER}}}" != "" 181CFLAGS+= ${${DEPEND_CFLAGS_CONDITION}:?${DEPEND_CFLAGS}:} 182.else 183CFLAGS+= ${DEPEND_CFLAGS} 184.endif 185.if !defined(_SKIP_READ_DEPEND) 186.for __depend_obj in ${DEPENDFILES_OBJS} 187.if ${MAKE_VERSION} < 20160220 188.sinclude "${.OBJDIR}/${__depend_obj}" 189.else 190.dinclude "${.OBJDIR}/${__depend_obj}" 191.endif 192.endfor 193.endif # !defined(_SKIP_READ_DEPEND) 194.endif # !defined(_meta_filemon) 195.endif # defined(SRCS) 196 197.if ${MK_DIRDEPS_BUILD} == "yes" 198# Prevent meta.autodep.mk from tracking "local dependencies". 199.depend: 200.include <meta.autodep.mk> 201# If using filemon then _EXTRADEPEND is skipped since it is not needed. 202.if empty(.MAKE.MODE:Mnofilemon) 203# this depend: bypasses that below 204# the dependency helps when bootstrapping 205depend: beforedepend ${DPSRCS} ${SRCS} afterdepend 206beforedepend: 207afterdepend: beforedepend 208.endif 209.endif 210 211# Guess some dependencies for when no ${DEPENDFILE}.OBJ is generated yet. 212# For meta+filemon the .meta file is checked for since it is the dependency 213# file used. 214.for __obj in ${DEPENDOBJS:O:u} 215.if (defined(_meta_filemon) && !exists(${.OBJDIR}/${__obj}.meta)) || \ 216 (!defined(_meta_filemon) && !exists(${.OBJDIR}/${DEPENDFILE}.${__obj})) 217${__obj}: ${OBJS_DEPEND_GUESS} 218${__obj}: ${OBJS_DEPEND_GUESS.${__obj}} 219.elif defined(_meta_filemon) 220# For meta mode we still need to know which file to depend on to avoid 221# ambiguous suffix transformation rules from .PATH. Meta mode does not 222# use .depend files. We really only need source files, not headers. 223${__obj}: ${OBJS_DEPEND_GUESS:N*.h} 224${__obj}: ${OBJS_DEPEND_GUESS.${__obj}:N*.h} 225.endif 226.endfor 227 228# Always run 'make depend' to generate dependencies early and to avoid the 229# need for manually running it. The dirdeps build should only do this in 230# sub-makes though since MAKELEVEL0 is for dirdeps calculations. 231.if ${MK_DIRDEPS_BUILD} == "no" || ${.MAKE.LEVEL} > 0 232beforebuild: depend 233.endif 234 235.if !target(depend) 236.if defined(SRCS) 237depend: beforedepend ${DEPENDFILE} afterdepend 238 239# Tell bmake not to look for generated files via .PATH 240.NOPATH: ${DEPENDFILE} ${DEPENDFILES_OBJS} 241 242DPSRCS+= ${SRCS} 243# A .depend file will only be generated if there are commands in 244# beforedepend/_EXTRADEPEND/afterdepend. The target is kept 245# to allow 'make depend' to generate files. 246${DEPENDFILE}: ${DPSRCS} 247.if !empty(.MAKE.MODE:Mmeta) || exists(${.OBJDIR}/${DEPENDFILE}) 248 rm -f ${DEPENDFILE} 249.endif 250.if target(_EXTRADEPEND) 251_EXTRADEPEND: .USE 252${DEPENDFILE}: _EXTRADEPEND 253.endif 254 255.ORDER: ${DEPENDFILE} afterdepend 256.else 257depend: beforedepend afterdepend 258.endif 259.if !target(beforedepend) 260beforedepend: 261.else 262.ORDER: beforedepend ${DEPENDFILE} 263.ORDER: beforedepend afterdepend 264.endif 265.if !target(afterdepend) 266afterdepend: 267.endif 268.endif 269 270.if defined(SRCS) 271.if ${CTAGS:T} == "gtags" 272CLEANDEPENDFILES+= GPATH GRTAGS GSYMS GTAGS 273.if defined(HTML) 274CLEANDEPENDDIRS+= HTML 275.endif 276.else 277CLEANDEPENDFILES+= tags 278.endif 279.endif 280.if !target(cleandepend) 281cleandepend: 282.if !empty(CLEANDEPENDFILES) 283 rm -f ${CLEANDEPENDFILES} 284.endif 285.if !empty(CLEANDEPENDDIRS) 286 rm -rf ${CLEANDEPENDDIRS} 287.endif 288.endif 289 290.if !target(checkdpadd) && (defined(DPADD) || defined(LDADD)) 291_LDADD_FROM_DPADD= ${DPADD:R:T:C;^lib(.*)$;-l\1;g} 292# Ignore -Wl,--start-group/-Wl,--end-group as it might be required in the 293# LDADD list due to unresolved symbols 294_LDADD_CANONICALIZED= ${LDADD:N:R:T:C;^lib(.*)$;-l\1;g:N-Wl,--[es]*-group} 295checkdpadd: 296.if ${_LDADD_FROM_DPADD} != ${_LDADD_CANONICALIZED} 297 @echo ${.CURDIR} 298 @echo "DPADD -> ${_LDADD_FROM_DPADD}" 299 @echo "LDADD -> ${_LDADD_CANONICALIZED}" 300.endif 301.endif 302