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} ${LFLAGS.${_LSRC}} -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# Multi-output targets both expect a .meta file and will fight over it. Only 125# allow it on the .c file instead. 126y.tab.h: ${_YC} .NOMETA 127# Force rebuild the .c file if any of its other outputs are missing. 128.if !exists(y.tab.h) 129${_YC}: .PHONY .META 130.endif 131${_YC}: ${_YSRC} 132 ${YACC} ${YFLAGS} ${YFLAGS.${_YSRC}} ${.ALLSRC} 133 cp y.tab.c ${_YC} 134CLEANFILES+= y.tab.c y.tab.h 135.elif !empty(YFLAGS:M-d) 136.for _YH in ${_YC:R}.h 137# Multi-output targets both expect a .meta file and will fight over it. Only 138# allow it on the .c file instead. 139${_YH}: ${_YC} .NOMETA 140# Force rebuild the .c file if any of its other outputs are missing. 141.if !exists(${_YH}) 142${_YC}: .PHONY .META 143.endif 144${_YC}: ${_YSRC} 145 ${YACC} ${YFLAGS} ${YFLAGS.${_YSRC}} -o ${_YC} ${.ALLSRC} 146SRCS+= ${_YH} 147CLEANFILES+= ${_YH} 148.endfor 149.else 150${_YC}: ${_YSRC} 151 ${YACC} ${YFLAGS} ${YFLAGS.${_YSRC}} -o ${_YC} ${.ALLSRC} 152.endif 153OBJS_DEPEND_GUESS.${_YC:R}.o+= ${_YC} 154.endfor 155.endfor 156 157# DTrace probe definitions 158.if ${SRCS:M*.d} 159CFLAGS+= -I${.OBJDIR} 160.endif 161.for _DSRC in ${SRCS:M*.d:N*/*} 162.for _D in ${_DSRC:R} 163SRCS+= ${_D}.h 164${_D}.h: ${_DSRC} 165 ${DTRACE} ${DTRACEFLAGS} -h -s ${.ALLSRC} 166SRCS:= ${SRCS:S/^${_DSRC}$//} 167OBJS+= ${_D}.o 168CLEANFILES+= ${_D}.h ${_D}.o 169${_D}.o: ${_DSRC} ${OBJS:S/^${_D}.o$//} 170 @rm -f ${.TARGET} 171 ${DTRACE} ${DTRACEFLAGS} -G -o ${.TARGET} -s ${.ALLSRC:N*.h} 172.if defined(LIB) 173CLEANFILES+= ${_D}.pico ${_D}.po ${_D}.nossppico 174${_D}.pico: ${_DSRC} ${SOBJS:S/^${_D}.pico$//} 175 @rm -f ${.TARGET} 176 ${DTRACE} ${DTRACEFLAGS} -G -o ${.TARGET} -s ${.ALLSRC:N*.h} 177${_D}.po: ${_DSRC} ${POBJS:S/^${_D}.po$//} 178 @rm -f ${.TARGET} 179 ${DTRACE} ${DTRACEFLAGS} -G -o ${.TARGET} -s ${.ALLSRC:N*.h} 180${_D}.nossppico: ${_DSRC} ${SOBJS:S/^${_D}.nossppico$//} 181 @rm -f ${.TARGET} 182 ${DTRACE} ${DTRACEFLAGS} -G -o ${.TARGET} -s ${.ALLSRC:N*.h} 183.endif 184.endfor 185.endfor 186.endif # defined(SRCS) 187 188.if ${MAKE_VERSION} < 20160220 189DEPEND_MP?= -MP 190.endif 191# Handle OBJS=../somefile.o hacks. Just replace '/' rather than use :T to 192# avoid collisions. 193DEPEND_FILTER= C,/,_,g 194.if !empty(OBJS) 195DEPENDOBJS+= ${OBJS} 196.else 197DEPENDSRCS+= ${SRCS:M*.[cSC]} ${SRCS:M*.cxx} ${SRCS:M*.cpp} ${SRCS:M*.cc} 198DEPENDSRCS+= ${DPSRCS:M*.[cSC]} ${DPSRCS:M*.cxx} ${DPSRCS:M*.cpp} ${DPSRCS:M*.cc} 199.if !empty(DEPENDSRCS) 200DEPENDOBJS+= ${DEPENDSRCS:${OBJS_SRCS_FILTER:ts:}:S,$,.o,} 201.endif 202.endif # !empty(OBJS) 203.if !empty(DEPENDOBJS) 204DEPENDFILES+= ${DEPENDOBJS:O:u:${DEPEND_FILTER}:C/^/${DEPENDFILE}./} 205.endif 206.if defined(_SKIP_DEPEND) 207# Don't bother statting any .meta files for .depend* 208${DEPENDOBJS}: .NOMETA 209${DEPENDFILE}: .NOMETA 210# Unset these to avoid looping/statting on them later. 211.undef DEPENDSRCS 212.undef DEPENDOBJS 213.undef DEPENDFILES 214.endif # defined(_SKIP_DEPEND) 215DEPEND_CFLAGS+= -MD ${DEPEND_MP} -MF${DEPENDFILE}.${.TARGET:${DEPEND_FILTER}} 216DEPEND_CFLAGS+= -MT${.TARGET} 217.if !defined(_meta_filemon) 218.if !empty(DEPEND_CFLAGS) 219# Only add in DEPEND_CFLAGS for CFLAGS on files we expect from DEPENDOBJS 220# as those are the only ones we will include. 221DEPEND_CFLAGS_CONDITION= "${DEPENDOBJS:${DEPEND_FILTER}:M${.TARGET:${DEPEND_FILTER}}}" != "" 222CFLAGS+= ${${DEPEND_CFLAGS_CONDITION}:?${DEPEND_CFLAGS}:} 223.endif 224.for __depend_obj in ${DEPENDFILES} 225.if ${MAKE_VERSION} < 20160220 226.sinclude "${.OBJDIR}/${__depend_obj}" 227.else 228.dinclude "${.OBJDIR}/${__depend_obj}" 229.endif 230.endfor 231.endif # !defined(_meta_filemon) 232 233.if ${MK_DIRDEPS_BUILD} == "yes" && ${.MAKE.DEPENDFILE} != "/dev/null" 234# Prevent meta.autodep.mk from tracking "local dependencies". 235.depend: 236.include <meta.autodep.mk> 237# If using filemon then _EXTRADEPEND is skipped since it is not needed. 238.if defined(_meta_filemon) 239# this depend: bypasses that below 240# the dependency helps when bootstrapping 241depend: beforedepend ${DPSRCS} ${SRCS} afterdepend 242beforedepend: 243afterdepend: beforedepend 244.endif 245.endif 246 247# Guess some dependencies for when no ${DEPENDFILE}.OBJ is generated yet. 248# For meta+filemon the .meta file is checked for since it is the dependency 249# file used. 250.for __obj in ${DEPENDOBJS:O:u} 251# If the obj has any '/', then replace with '_'. For meta files, this is 252# mimicing what bmake's meta_name() does and adding in the full path 253# as well to ensure that the expected meta file is read. 254.if ${__obj:M*/*} 255.if ${MAKE_VERSION} < 20171028 256_meta_obj= ${.OBJDIR:C,/,_,g}_${__obj:C,/,_,g}.meta 257.else 258_meta_obj= ${__obj:C,/,_,g}.meta 259.endif # ${MAKE_VERSION} < 20171028 260.else 261_meta_obj= ${__obj}.meta 262.endif # ${__obj:M*/*} 263_dep_obj= ${DEPENDFILE}.${__obj:${DEPEND_FILTER}} 264.if defined(_meta_filemon) 265_depfile= ${.OBJDIR}/${_meta_obj} 266.else 267_depfile= ${.OBJDIR}/${_dep_obj} 268.endif 269.if !exists(${_depfile}) || defined(_meta_filemon) 270# - Headers are normally built in beforebuild when included in DPSRCS or SRCS. 271# So we don't need it as a guessed dependency (it may lead to cyclic problems 272# if custom rules are defined). The only time this causes a problem is when 273# 'make foo.o' is ran. 274# - For meta mode we still need to know which file to depend on to avoid 275# ambiguous suffix transformation rules from .PATH. Meta mode does not 276# use .depend files when filemon is in use. 277.if !target(${__obj}) 278${__obj}: ${OBJS_DEPEND_GUESS} 279.endif 280${__obj}: ${OBJS_DEPEND_GUESS.${__obj}} 281.endif # !exists(${_depfile}) || defined(_meta_filemon) 282.endfor 283 284# Always run 'make depend' to generate dependencies early and to avoid the 285# need for manually running it. The dirdeps build should only do this in 286# sub-makes though since MAKELEVEL0 is for dirdeps calculations. 287.if ${MK_DIRDEPS_BUILD} == "no" || ${.MAKE.LEVEL} > 0 288beforebuild: depend 289.endif 290 291.if !target(depend) 292.if defined(SRCS) 293depend: beforedepend ${DEPENDFILE} afterdepend 294 295# Tell bmake not to look for generated files via .PATH 296.NOPATH: ${DEPENDFILE} ${DEPENDFILES} 297 298# A .depend file will only be generated if there are commands in 299# beforedepend/_EXTRADEPEND/afterdepend The _EXTRADEPEND target is 300# ignored if using meta+filemon since it handles all dependencies. The other 301# targets are kept as they be used for generating something. The target is 302# kept to allow 'make depend' to generate files. 303${DEPENDFILE}: ${SRCS} ${DPSRCS} 304.if !defined(_SKIP_DEPEND) 305.if exists(${.OBJDIR}/${DEPENDFILE}) || \ 306 ((commands(beforedepend) || \ 307 (!defined(_meta_filemon) && commands(_EXTRADEPEND)) || \ 308 commands(afterdepend)) && !empty(.MAKE.MODE:Mmeta)) 309 rm -f ${DEPENDFILE} 310.endif 311.endif 312.if !defined(_meta_filemon) && target(_EXTRADEPEND) 313_EXTRADEPEND: .USE 314${DEPENDFILE}: _EXTRADEPEND 315.endif 316 317.ORDER: ${DEPENDFILE} afterdepend 318.else 319depend: beforedepend afterdepend 320.endif 321.if !target(beforedepend) 322beforedepend: 323.else 324.ORDER: beforedepend ${DEPENDFILE} 325.ORDER: beforedepend afterdepend 326.endif 327.if !target(afterdepend) 328afterdepend: 329.endif 330.endif 331 332.if defined(SRCS) 333.if ${CTAGS:T} == "gtags" 334CLEANDEPENDFILES+= GPATH GRTAGS GSYMS GTAGS 335.if defined(HTML) 336CLEANDEPENDDIRS+= HTML 337.endif 338.else 339CLEANDEPENDFILES+= tags 340.endif 341.endif 342.if !target(cleandepend) 343cleandepend: 344.if !empty(CLEANDEPENDFILES) 345 rm -f ${CLEANDEPENDFILES} 346.endif 347.if !empty(CLEANDEPENDDIRS) 348 rm -rf ${CLEANDEPENDDIRS} 349.endif 350.endif 351.ORDER: cleandepend all 352.ORDER: cleandepend depend 353.if ${MK_AUTO_OBJ} == "yes" 354.ORDER: cleanobj depend 355.ORDER: cleandir depend 356.endif 357 358.if !target(checkdpadd) && (defined(DPADD) || defined(LDADD)) 359_LDADD_FROM_DPADD= ${DPADD:R:T:C;^lib(.*)$;-l\1;g} 360# Ignore -Wl,--start-group/-Wl,--end-group as it might be required in the 361# LDADD list due to unresolved symbols 362_LDADD_CANONICALIZED= ${LDADD:N:R:T:C;^lib(.*)$;-l\1;g:N-Wl,--[es]*-group} 363checkdpadd: 364.if ${_LDADD_FROM_DPADD} != ${_LDADD_CANONICALIZED} 365 @echo ${.CURDIR} 366 @echo "DPADD -> ${_LDADD_FROM_DPADD}" 367 @echo "LDADD -> ${_LDADD_CANONICALIZED}" 368.endif 369.endif 370