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