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.if !empty(.MAKE.MODE:Mmeta) && empty(.MAKE.MODE:Mnofilemon) 76_meta_filemon= 1 77.endif 78# By default META_MODE is disabled in bmake if there is no OBJDIR 79# unless .MAKE.MODE contains "curdirOk=[^0nNfF]" 80.if defined(_meta_filemon) && ${.OBJDIR} == ${.CURDIR} && \ 81 (empty(.MAKE.MODE:tl:Mcurdirok=*) || \ 82 !empty(.MAKE.MODE:tl:Mcurdirok=[0NnFf]*)) 83.undef _meta_filemon 84.endif 85 86# Skip reading .depend when not needed to speed up tree-walks and simple 87# lookups. See _SKIP_BUILD logic in bsd.init.mk for more details. 88# Also skip generating or including .depend.* files if in meta+filemon mode 89# since it will track dependencies itself. OBJS_DEPEND_GUESS is still used. 90.if defined(_SKIP_BUILD) || defined(_meta_filemon) 91_SKIP_READ_DEPEND= 1 92.if ${MK_DIRDEPS_BUILD} == "no" || make(analyze) || make(print-dir) || \ 93 make(obj) || make(clean*) || make(destroy*) 94.MAKE.DEPENDFILE= /dev/null 95.endif 96.endif 97 98.if defined(SRCS) 99CLEANFILES?= 100 101.for _S in ${SRCS:N*.[dhly]} 102OBJS_DEPEND_GUESS.${_S:R}.o+= ${_S} 103.endfor 104 105# Lexical analyzers 106.for _LSRC in ${SRCS:M*.l:N*/*} 107.for _LC in ${_LSRC:R}.c 108${_LC}: ${_LSRC} 109 ${LEX} ${LFLAGS} -o${.TARGET} ${.ALLSRC} 110OBJS_DEPEND_GUESS.${_LC:R}.o+= ${_LC} 111SRCS:= ${SRCS:S/${_LSRC}/${_LC}/} 112CLEANFILES+= ${_LC} 113.endfor 114.endfor 115 116# Yacc grammars 117.for _YSRC in ${SRCS:M*.y:N*/*} 118.for _YC in ${_YSRC:R}.c 119SRCS:= ${SRCS:S/${_YSRC}/${_YC}/} 120CLEANFILES+= ${_YC} 121.if !empty(YFLAGS:M-d) && !empty(SRCS:My.tab.h) 122.ORDER: ${_YC} y.tab.h 123y.tab.h: .NOMETA 124${_YC} y.tab.h: ${_YSRC} 125 ${YACC} ${YFLAGS} ${.ALLSRC} 126 cp y.tab.c ${_YC} 127CLEANFILES+= y.tab.c y.tab.h 128.elif !empty(YFLAGS:M-d) 129.for _YH in ${_YC:R}.h 130.ORDER: ${_YC} ${_YH} 131${_YH}: .NOMETA 132${_YC} ${_YH}: ${_YSRC} 133 ${YACC} ${YFLAGS} -o ${_YC} ${.ALLSRC} 134SRCS+= ${_YH} 135CLEANFILES+= ${_YH} 136.endfor 137.else 138${_YC}: ${_YSRC} 139 ${YACC} ${YFLAGS} -o ${_YC} ${.ALLSRC} 140.endif 141OBJS_DEPEND_GUESS.${_YC:R}.o+= ${_YC} 142.endfor 143.endfor 144 145# DTrace probe definitions 146.if ${SRCS:M*.d} 147CFLAGS+= -I${.OBJDIR} 148.endif 149.for _DSRC in ${SRCS:M*.d:N*/*} 150.for _D in ${_DSRC:R} 151SRCS+= ${_D}.h 152${_D}.h: ${_DSRC} 153 ${DTRACE} ${DTRACEFLAGS} -h -s ${.ALLSRC} 154SRCS:= ${SRCS:S/^${_DSRC}$//} 155OBJS+= ${_D}.o 156CLEANFILES+= ${_D}.h ${_D}.o 157${_D}.o: ${_DSRC} ${OBJS:S/^${_D}.o$//} 158 @rm -f ${.TARGET} 159 ${DTRACE} ${DTRACEFLAGS} -G -o ${.TARGET} -s ${.ALLSRC:N*.h} 160.if defined(LIB) 161CLEANFILES+= ${_D}.pico ${_D}.po 162${_D}.pico: ${_DSRC} ${SOBJS:S/^${_D}.pico$//} 163 @rm -f ${.TARGET} 164 ${DTRACE} ${DTRACEFLAGS} -G -o ${.TARGET} -s ${.ALLSRC:N*.h} 165${_D}.po: ${_DSRC} ${POBJS:S/^${_D}.po$//} 166 @rm -f ${.TARGET} 167 ${DTRACE} ${DTRACEFLAGS} -G -o ${.TARGET} -s ${.ALLSRC:N*.h} 168.endif 169.endfor 170.endfor 171 172 173.if ${MAKE_VERSION} < 20160220 174DEPEND_MP?= -MP 175.endif 176# Handle OBJS=../somefile.o hacks. Just replace '/' rather than use :T to 177# avoid collisions. 178DEPEND_FILTER= C,/,_,g 179DEPENDSRCS= ${SRCS:M*.[cSC]} ${SRCS:M*.cxx} ${SRCS:M*.cpp} ${SRCS:M*.cc} 180.if !empty(DEPENDSRCS) 181DEPENDOBJS+= ${DEPENDSRCS:R:S,$,.o,} 182.endif 183DEPENDFILES_OBJS= ${DEPENDOBJS:O:u:${DEPEND_FILTER}:C/^/${DEPENDFILE}./} 184DEPEND_CFLAGS+= -MD ${DEPEND_MP} -MF${DEPENDFILE}.${.TARGET:${DEPEND_FILTER}} 185DEPEND_CFLAGS+= -MT${.TARGET} 186.if !defined(_meta_filemon) 187.if defined(.PARSEDIR) 188# Only add in DEPEND_CFLAGS for CFLAGS on files we expect from DEPENDOBJS 189# as those are the only ones we will include. 190DEPEND_CFLAGS_CONDITION= "${DEPENDOBJS:${DEPEND_FILTER}:M${.TARGET:${DEPEND_FILTER}}}" != "" 191CFLAGS+= ${${DEPEND_CFLAGS_CONDITION}:?${DEPEND_CFLAGS}:} 192.else 193CFLAGS+= ${DEPEND_CFLAGS} 194.endif 195.if !defined(_SKIP_READ_DEPEND) 196.for __depend_obj in ${DEPENDFILES_OBJS} 197.if ${MAKE_VERSION} < 20160220 198.sinclude "${.OBJDIR}/${__depend_obj}" 199.else 200.dinclude "${.OBJDIR}/${__depend_obj}" 201.endif 202.endfor 203.endif # !defined(_SKIP_READ_DEPEND) 204.endif # !defined(_meta_filemon) 205.endif # defined(SRCS) 206 207.if ${MK_DIRDEPS_BUILD} == "yes" && ${.MAKE.DEPENDFILE} != "/dev/null" 208# Prevent meta.autodep.mk from tracking "local dependencies". 209.depend: 210.include <meta.autodep.mk> 211# If using filemon then _EXTRADEPEND is skipped since it is not needed. 212.if defined(_meta_filemon) 213# this depend: bypasses that below 214# the dependency helps when bootstrapping 215depend: beforedepend ${DPSRCS} ${SRCS} afterdepend 216beforedepend: 217afterdepend: beforedepend 218.endif 219.endif 220 221# Guess some dependencies for when no ${DEPENDFILE}.OBJ is generated yet. 222# For meta+filemon the .meta file is checked for since it is the dependency 223# file used. 224.for __obj in ${DEPENDOBJS:O:u} 225# If the obj has any '/', then replace with '_'. For meta files, this is 226# mimicing what bmake's meta_name() does and adding in the full path 227# as well to ensure that the expected meta file is read. 228.if ${__obj:M*/*} 229_meta_obj= ${.OBJDIR:C,/,_,g}_${__obj:C,/,_,g}.meta 230.else 231_meta_obj= ${__obj}.meta 232.endif 233_dep_obj= ${DEPENDFILE}.${__obj:${DEPEND_FILTER}} 234.if (defined(_meta_filemon) && !exists(${.OBJDIR}/${_meta_obj})) || \ 235 (!defined(_meta_filemon) && !exists(${.OBJDIR}/${_dep_obj})) 236${__obj}: ${OBJS_DEPEND_GUESS} 237${__obj}: ${OBJS_DEPEND_GUESS.${__obj}} 238.elif defined(_meta_filemon) 239# For meta mode we still need to know which file to depend on to avoid 240# ambiguous suffix transformation rules from .PATH. Meta mode does not 241# use .depend files. We really only need source files, not headers since 242# they are typically in SRCS/beforebuild already. For target-specific 243# guesses do include headers though since they may not be in SRCS. 244${__obj}: ${OBJS_DEPEND_GUESS:N*.h} 245${__obj}: ${OBJS_DEPEND_GUESS.${__obj}} 246.endif 247.endfor 248 249# Always run 'make depend' to generate dependencies early and to avoid the 250# need for manually running it. The dirdeps build should only do this in 251# sub-makes though since MAKELEVEL0 is for dirdeps calculations. 252.if ${MK_DIRDEPS_BUILD} == "no" || ${.MAKE.LEVEL} > 0 253beforebuild: depend 254.endif 255 256.if !target(depend) 257.if defined(SRCS) 258depend: beforedepend ${DEPENDFILE} afterdepend 259 260# Tell bmake not to look for generated files via .PATH 261.NOPATH: ${DEPENDFILE} ${DEPENDFILES_OBJS} 262 263DPSRCS+= ${SRCS} 264# A .depend file will only be generated if there are commands in 265# beforedepend/_EXTRADEPEND/afterdepend The _EXTRADEPEND target is 266# ignored if using meta+filemon since it handles all dependencies. The other 267# targets are kept as they be used for generating something. The target is 268# kept to allow 'make depend' to generate files. 269${DEPENDFILE}: ${DPSRCS} 270.if exists(${.OBJDIR}/${DEPENDFILE}) || \ 271 ((commands(beforedepend) || \ 272 (!defined(_meta_filemon) && commands(_EXTRADEPEND)) || \ 273 commands(afterdepend)) && !empty(.MAKE.MODE:Mmeta)) 274 rm -f ${DEPENDFILE} 275.endif 276.if !defined(_meta_filemon) && target(_EXTRADEPEND) 277_EXTRADEPEND: .USE 278${DEPENDFILE}: _EXTRADEPEND 279.endif 280 281.ORDER: ${DEPENDFILE} afterdepend 282.else 283depend: beforedepend afterdepend 284.endif 285.if !target(beforedepend) 286beforedepend: 287.else 288.ORDER: beforedepend ${DEPENDFILE} 289.ORDER: beforedepend afterdepend 290.endif 291.if !target(afterdepend) 292afterdepend: 293.endif 294.endif 295 296.if defined(SRCS) 297.if ${CTAGS:T} == "gtags" 298CLEANDEPENDFILES+= GPATH GRTAGS GSYMS GTAGS 299.if defined(HTML) 300CLEANDEPENDDIRS+= HTML 301.endif 302.else 303CLEANDEPENDFILES+= tags 304.endif 305.endif 306.if !target(cleandepend) 307cleandepend: 308.if !empty(CLEANDEPENDFILES) 309 rm -f ${CLEANDEPENDFILES} 310.endif 311.if !empty(CLEANDEPENDDIRS) 312 rm -rf ${CLEANDEPENDDIRS} 313.endif 314.endif 315.ORDER: cleandepend all 316.ORDER: cleandepend depend 317 318.if !target(checkdpadd) && (defined(DPADD) || defined(LDADD)) 319_LDADD_FROM_DPADD= ${DPADD:R:T:C;^lib(.*)$;-l\1;g} 320# Ignore -Wl,--start-group/-Wl,--end-group as it might be required in the 321# LDADD list due to unresolved symbols 322_LDADD_CANONICALIZED= ${LDADD:N:R:T:C;^lib(.*)$;-l\1;g:N-Wl,--[es]*-group} 323checkdpadd: 324.if ${_LDADD_FROM_DPADD} != ${_LDADD_CANONICALIZED} 325 @echo ${.CURDIR} 326 @echo "DPADD -> ${_LDADD_FROM_DPADD}" 327 @echo "LDADD -> ${_LDADD_CANONICALIZED}" 328.endif 329.endif 330