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# for _meta_filemon but not for _SKIP_DEPEND. 91.if !defined(NO_SKIP_DEPEND) && defined(_SKIP_BUILD) 92_SKIP_DEPEND= 1 93.endif 94.if ${MK_DIRDEPS_BUILD} == "no" 95.if defined(_SKIP_DEPEND) || defined(_meta_filemon) 96.MAKE.DEPENDFILE= /dev/null 97.endif 98.endif 99 100.if defined(SRCS) 101CLEANFILES?= 102 103.for _S in ${SRCS:N*.[dhly]} 104OBJS_DEPEND_GUESS.${_S:${OBJS_SRCS_FILTER:ts:}}.o+= ${_S} 105.endfor 106 107# Lexical analyzers 108.for _LSRC in ${SRCS:M*.l:N*/*} 109.for _LC in ${_LSRC:R}.c 110${_LC}: ${_LSRC} 111 ${LEX} ${LFLAGS} -o${.TARGET} ${.ALLSRC} 112OBJS_DEPEND_GUESS.${_LC:R}.o+= ${_LC} 113SRCS:= ${SRCS:S/${_LSRC}/${_LC}/} 114CLEANFILES+= ${_LC} 115.endfor 116.endfor 117 118# Yacc grammars 119.for _YSRC in ${SRCS:M*.y:N*/*} 120.for _YC in ${_YSRC:R}.c 121SRCS:= ${SRCS:S/${_YSRC}/${_YC}/} 122CLEANFILES+= ${_YC} 123.if !empty(YFLAGS:M-d) && !empty(SRCS:My.tab.h) 124.ORDER: ${_YC} y.tab.h 125y.tab.h: .NOMETA 126${_YC} y.tab.h: ${_YSRC} 127 ${YACC} ${YFLAGS} ${.ALLSRC} 128 cp y.tab.c ${_YC} 129CLEANFILES+= y.tab.c y.tab.h 130.elif !empty(YFLAGS:M-d) 131.for _YH in ${_YC:R}.h 132.ORDER: ${_YC} ${_YH} 133${_YH}: .NOMETA 134${_YC} ${_YH}: ${_YSRC} 135 ${YACC} ${YFLAGS} -o ${_YC} ${.ALLSRC} 136SRCS+= ${_YH} 137CLEANFILES+= ${_YH} 138.endfor 139.else 140${_YC}: ${_YSRC} 141 ${YACC} ${YFLAGS} -o ${_YC} ${.ALLSRC} 142.endif 143OBJS_DEPEND_GUESS.${_YC:R}.o+= ${_YC} 144.endfor 145.endfor 146 147# DTrace probe definitions 148.if ${SRCS:M*.d} 149CFLAGS+= -I${.OBJDIR} 150.endif 151.for _DSRC in ${SRCS:M*.d:N*/*} 152.for _D in ${_DSRC:R} 153SRCS+= ${_D}.h 154${_D}.h: ${_DSRC} 155 ${DTRACE} ${DTRACEFLAGS} -h -s ${.ALLSRC} 156SRCS:= ${SRCS:S/^${_DSRC}$//} 157OBJS+= ${_D}.o 158CLEANFILES+= ${_D}.h ${_D}.o 159${_D}.o: ${_DSRC} ${OBJS:S/^${_D}.o$//} 160 @rm -f ${.TARGET} 161 ${DTRACE} ${DTRACEFLAGS} -G -o ${.TARGET} -s ${.ALLSRC:N*.h} 162.if defined(LIB) 163CLEANFILES+= ${_D}.pico ${_D}.po ${_D}.nossppico 164${_D}.pico: ${_DSRC} ${SOBJS:S/^${_D}.pico$//} 165 @rm -f ${.TARGET} 166 ${DTRACE} ${DTRACEFLAGS} -G -o ${.TARGET} -s ${.ALLSRC:N*.h} 167${_D}.po: ${_DSRC} ${POBJS:S/^${_D}.po$//} 168 @rm -f ${.TARGET} 169 ${DTRACE} ${DTRACEFLAGS} -G -o ${.TARGET} -s ${.ALLSRC:N*.h} 170${_D}.nossppico: ${_DSRC} ${SOBJS:S/^${_D}.nossppico$//} 171 @rm -f ${.TARGET} 172 ${DTRACE} ${DTRACEFLAGS} -G -o ${.TARGET} -s ${.ALLSRC:N*.h} 173.endif 174.endfor 175.endfor 176 177 178.if ${MAKE_VERSION} < 20160220 179DEPEND_MP?= -MP 180.endif 181# Handle OBJS=../somefile.o hacks. Just replace '/' rather than use :T to 182# avoid collisions. 183DEPEND_FILTER= C,/,_,g 184DEPENDSRCS+= ${SRCS:M*.[cSC]} ${SRCS:M*.cxx} ${SRCS:M*.cpp} ${SRCS:M*.cc} 185DEPENDSRCS+= ${DPSRCS:M*.[cSC]} ${SRCS:M*.cxx} ${SRCS:M*.cpp} ${SRCS:M*.cc} 186.if !empty(DEPENDSRCS) 187DEPENDOBJS+= ${DEPENDSRCS:${OBJS_SRCS_FILTER:ts:}:S,$,.o,} 188.endif 189DEPENDFILES+= ${DEPENDOBJS:O:u:${DEPEND_FILTER}:C/^/${DEPENDFILE}./} 190.if defined(_SKIP_DEPEND) 191# Don't bother statting any .meta files for .depend* 192${DEPENDOBJS}: .NOMETA 193${DEPENDFILE}: .NOMETA 194# Unset these to avoid looping/statting on them later. 195.undef DEPENDSRCS 196.undef DEPENDOBJS 197.undef DEPENDFILES 198.endif # defined(_SKIP_DEPEND) 199DEPEND_CFLAGS+= -MD ${DEPEND_MP} -MF${DEPENDFILE}.${.TARGET:${DEPEND_FILTER}} 200DEPEND_CFLAGS+= -MT${.TARGET} 201.if !defined(_meta_filemon) 202.if !empty(DEPEND_CFLAGS) 203# Only add in DEPEND_CFLAGS for CFLAGS on files we expect from DEPENDOBJS 204# as those are the only ones we will include. 205DEPEND_CFLAGS_CONDITION= "${DEPENDOBJS:${DEPEND_FILTER}:M${.TARGET:${DEPEND_FILTER}}}" != "" 206CFLAGS+= ${${DEPEND_CFLAGS_CONDITION}:?${DEPEND_CFLAGS}:} 207.endif 208.for __depend_obj in ${DEPENDFILES} 209.if ${MAKE_VERSION} < 20160220 210.sinclude "${.OBJDIR}/${__depend_obj}" 211.else 212.dinclude "${.OBJDIR}/${__depend_obj}" 213.endif 214.endfor 215.endif # !defined(_meta_filemon) 216.endif # defined(SRCS) 217 218.if ${MK_DIRDEPS_BUILD} == "yes" && ${.MAKE.DEPENDFILE} != "/dev/null" 219# Prevent meta.autodep.mk from tracking "local dependencies". 220.depend: 221.include <meta.autodep.mk> 222# If using filemon then _EXTRADEPEND is skipped since it is not needed. 223.if defined(_meta_filemon) 224# this depend: bypasses that below 225# the dependency helps when bootstrapping 226depend: beforedepend ${DPSRCS} ${SRCS} afterdepend 227beforedepend: 228afterdepend: beforedepend 229.endif 230.endif 231 232# Guess some dependencies for when no ${DEPENDFILE}.OBJ is generated yet. 233# For meta+filemon the .meta file is checked for since it is the dependency 234# file used. 235.for __obj in ${DEPENDOBJS:O:u} 236# If the obj has any '/', then replace with '_'. For meta files, this is 237# mimicing what bmake's meta_name() does and adding in the full path 238# as well to ensure that the expected meta file is read. 239.if ${__obj:M*/*} 240.if ${MAKE_VERSION} < 20171028 241_meta_obj= ${.OBJDIR:C,/,_,g}_${__obj:C,/,_,g}.meta 242.else 243_meta_obj= ${__obj:C,/,_,g}.meta 244.endif # ${MAKE_VERSION} < 20171028 245.else 246_meta_obj= ${__obj}.meta 247.endif # ${__obj:M*/*} 248_dep_obj= ${DEPENDFILE}.${__obj:${DEPEND_FILTER}} 249.if defined(_meta_filemon) 250_depfile= ${.OBJDIR}/${_meta_obj} 251.else 252_depfile= ${.OBJDIR}/${_dep_obj} 253.endif 254.if !exists(${_depfile}) 255${__obj}: ${OBJS_DEPEND_GUESS} 256${__obj}: ${OBJS_DEPEND_GUESS.${__obj}} 257.elif defined(_meta_filemon) 258# For meta mode we still need to know which file to depend on to avoid 259# ambiguous suffix transformation rules from .PATH. Meta mode does not 260# use .depend files. We really only need source files, not headers since 261# they are typically in SRCS/beforebuild already. For target-specific 262# guesses do include headers though since they may not be in SRCS. 263${__obj}: ${OBJS_DEPEND_GUESS:N*.h} 264${__obj}: ${OBJS_DEPEND_GUESS.${__obj}} 265.endif # !exists(${_depfile}) 266.endfor 267 268# Always run 'make depend' to generate dependencies early and to avoid the 269# need for manually running it. The dirdeps build should only do this in 270# sub-makes though since MAKELEVEL0 is for dirdeps calculations. 271.if ${MK_DIRDEPS_BUILD} == "no" || ${.MAKE.LEVEL} > 0 272beforebuild: depend 273.endif 274 275.if !target(depend) 276.if defined(SRCS) 277depend: beforedepend ${DEPENDFILE} afterdepend 278 279# Tell bmake not to look for generated files via .PATH 280.NOPATH: ${DEPENDFILE} ${DEPENDFILES} 281 282# A .depend file will only be generated if there are commands in 283# beforedepend/_EXTRADEPEND/afterdepend The _EXTRADEPEND target is 284# ignored if using meta+filemon since it handles all dependencies. The other 285# targets are kept as they be used for generating something. The target is 286# kept to allow 'make depend' to generate files. 287${DEPENDFILE}: ${SRCS} ${DPSRCS} 288.if !defined(_SKIP_DEPEND) 289.if exists(${.OBJDIR}/${DEPENDFILE}) || \ 290 ((commands(beforedepend) || \ 291 (!defined(_meta_filemon) && commands(_EXTRADEPEND)) || \ 292 commands(afterdepend)) && !empty(.MAKE.MODE:Mmeta)) 293 rm -f ${DEPENDFILE} 294.endif 295.endif 296.if !defined(_meta_filemon) && target(_EXTRADEPEND) 297_EXTRADEPEND: .USE 298${DEPENDFILE}: _EXTRADEPEND 299.endif 300 301.ORDER: ${DEPENDFILE} afterdepend 302.else 303depend: beforedepend afterdepend 304.endif 305.if !target(beforedepend) 306beforedepend: 307.else 308.ORDER: beforedepend ${DEPENDFILE} 309.ORDER: beforedepend afterdepend 310.endif 311.if !target(afterdepend) 312afterdepend: 313.endif 314.endif 315 316.if defined(SRCS) 317.if ${CTAGS:T} == "gtags" 318CLEANDEPENDFILES+= GPATH GRTAGS GSYMS GTAGS 319.if defined(HTML) 320CLEANDEPENDDIRS+= HTML 321.endif 322.else 323CLEANDEPENDFILES+= tags 324.endif 325.endif 326.if !target(cleandepend) 327cleandepend: 328.if !empty(CLEANDEPENDFILES) 329 rm -f ${CLEANDEPENDFILES} 330.endif 331.if !empty(CLEANDEPENDDIRS) 332 rm -rf ${CLEANDEPENDDIRS} 333.endif 334.endif 335.ORDER: cleandepend all 336.ORDER: cleandepend depend 337.if ${MK_AUTO_OBJ} == "yes" 338.ORDER: cleanobj depend 339.ORDER: cleandir depend 340.endif 341 342.if !target(checkdpadd) && (defined(DPADD) || defined(LDADD)) 343_LDADD_FROM_DPADD= ${DPADD:R:T:C;^lib(.*)$;-l\1;g} 344# Ignore -Wl,--start-group/-Wl,--end-group as it might be required in the 345# LDADD list due to unresolved symbols 346_LDADD_CANONICALIZED= ${LDADD:N:R:T:C;^lib(.*)$;-l\1;g:N-Wl,--[es]*-group} 347checkdpadd: 348.if ${_LDADD_FROM_DPADD} != ${_LDADD_CANONICALIZED} 349 @echo ${.CURDIR} 350 @echo "DPADD -> ${_LDADD_FROM_DPADD}" 351 @echo "LDADD -> ${_LDADD_CANONICALIZED}" 352.endif 353.endif 354