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 ${_D}.po 164${_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.endif 171.endfor 172.endfor 173 174 175.if ${MAKE_VERSION} < 20160220 176DEPEND_MP?= -MP 177.endif 178# Handle OBJS=../somefile.o hacks. Just replace '/' rather than use :T to 179# avoid collisions. 180DEPEND_FILTER= C,/,_,g 181DEPENDSRCS= ${SRCS:M*.[cSC]} ${SRCS:M*.cxx} ${SRCS:M*.cpp} ${SRCS:M*.cc} 182.if !empty(DEPENDSRCS) 183DEPENDOBJS+= ${DEPENDSRCS:${OBJS_SRCS_FILTER:ts:}:S,$,.o,} 184.endif 185DEPENDFILES+= ${DEPENDOBJS:O:u:${DEPEND_FILTER}:C/^/${DEPENDFILE}./} 186.if defined(_SKIP_DEPEND) 187# Don't bother statting any .meta files for .depend* 188${DEPENDOBJS}: .NOMETA 189${DEPENDFILE}: .NOMETA 190# Unset these to avoid looping/statting on them later. 191.undef DEPENDSRCS 192.undef DEPENDOBJS 193.undef DEPENDFILES 194.endif # defined(_SKIP_DEPEND) 195DEPEND_CFLAGS+= -MD ${DEPEND_MP} -MF${DEPENDFILE}.${.TARGET:${DEPEND_FILTER}} 196DEPEND_CFLAGS+= -MT${.TARGET} 197.if !defined(_meta_filemon) 198.if !empty(DEPEND_CFLAGS) 199# Only add in DEPEND_CFLAGS for CFLAGS on files we expect from DEPENDOBJS 200# as those are the only ones we will include. 201DEPEND_CFLAGS_CONDITION= "${DEPENDOBJS:${DEPEND_FILTER}:M${.TARGET:${DEPEND_FILTER}}}" != "" 202CFLAGS+= ${${DEPEND_CFLAGS_CONDITION}:?${DEPEND_CFLAGS}:} 203.endif 204.for __depend_obj in ${DEPENDFILES} 205.if ${MAKE_VERSION} < 20160220 206.sinclude "${.OBJDIR}/${__depend_obj}" 207.else 208.dinclude "${.OBJDIR}/${__depend_obj}" 209.endif 210.endfor 211.endif # !defined(_meta_filemon) 212.endif # defined(SRCS) 213 214.if ${MK_DIRDEPS_BUILD} == "yes" && ${.MAKE.DEPENDFILE} != "/dev/null" 215# Prevent meta.autodep.mk from tracking "local dependencies". 216.depend: 217.include <meta.autodep.mk> 218# If using filemon then _EXTRADEPEND is skipped since it is not needed. 219.if defined(_meta_filemon) 220# this depend: bypasses that below 221# the dependency helps when bootstrapping 222depend: beforedepend ${DPSRCS} ${SRCS} afterdepend 223beforedepend: 224afterdepend: beforedepend 225.endif 226.endif 227 228# Guess some dependencies for when no ${DEPENDFILE}.OBJ is generated yet. 229# For meta+filemon the .meta file is checked for since it is the dependency 230# file used. 231.for __obj in ${DEPENDOBJS:O:u} 232# If the obj has any '/', then replace with '_'. For meta files, this is 233# mimicing what bmake's meta_name() does and adding in the full path 234# as well to ensure that the expected meta file is read. 235.if ${__obj:M*/*} 236.if ${MAKE_VERSION} < 20171028 237_meta_obj= ${.OBJDIR:C,/,_,g}_${__obj:C,/,_,g}.meta 238.else 239_meta_obj= ${__obj:C,/,_,g}.meta 240.endif # ${MAKE_VERSION} < 20171028 241.else 242_meta_obj= ${__obj}.meta 243.endif # ${__obj:M*/*} 244_dep_obj= ${DEPENDFILE}.${__obj:${DEPEND_FILTER}} 245.if defined(_meta_filemon) 246_depfile= ${.OBJDIR}/${_meta_obj} 247.else 248_depfile= ${.OBJDIR}/${_dep_obj} 249.endif 250.if !exists(${_depfile}) 251${__obj}: ${OBJS_DEPEND_GUESS} 252${__obj}: ${OBJS_DEPEND_GUESS.${__obj}} 253.elif defined(_meta_filemon) 254# For meta mode we still need to know which file to depend on to avoid 255# ambiguous suffix transformation rules from .PATH. Meta mode does not 256# use .depend files. We really only need source files, not headers since 257# they are typically in SRCS/beforebuild already. For target-specific 258# guesses do include headers though since they may not be in SRCS. 259${__obj}: ${OBJS_DEPEND_GUESS:N*.h} 260${__obj}: ${OBJS_DEPEND_GUESS.${__obj}} 261.endif # !exists(${_depfile}) 262.endfor 263 264# Always run 'make depend' to generate dependencies early and to avoid the 265# need for manually running it. The dirdeps build should only do this in 266# sub-makes though since MAKELEVEL0 is for dirdeps calculations. 267.if ${MK_DIRDEPS_BUILD} == "no" || ${.MAKE.LEVEL} > 0 268beforebuild: depend 269.endif 270 271.if !target(depend) 272.if defined(SRCS) 273depend: beforedepend ${DEPENDFILE} afterdepend 274 275# Tell bmake not to look for generated files via .PATH 276.NOPATH: ${DEPENDFILE} ${DEPENDFILES} 277 278DPSRCS+= ${SRCS} 279# A .depend file will only be generated if there are commands in 280# beforedepend/_EXTRADEPEND/afterdepend The _EXTRADEPEND target is 281# ignored if using meta+filemon since it handles all dependencies. The other 282# targets are kept as they be used for generating something. The target is 283# kept to allow 'make depend' to generate files. 284${DEPENDFILE}: ${DPSRCS} 285.if !defined(_SKIP_DEPEND) 286.if exists(${.OBJDIR}/${DEPENDFILE}) || \ 287 ((commands(beforedepend) || \ 288 (!defined(_meta_filemon) && commands(_EXTRADEPEND)) || \ 289 commands(afterdepend)) && !empty(.MAKE.MODE:Mmeta)) 290 rm -f ${DEPENDFILE} 291.endif 292.endif 293.if !defined(_meta_filemon) && target(_EXTRADEPEND) 294_EXTRADEPEND: .USE 295${DEPENDFILE}: _EXTRADEPEND 296.endif 297 298.ORDER: ${DEPENDFILE} afterdepend 299.else 300depend: beforedepend afterdepend 301.endif 302.if !target(beforedepend) 303beforedepend: 304.else 305.ORDER: beforedepend ${DEPENDFILE} 306.ORDER: beforedepend afterdepend 307.endif 308.if !target(afterdepend) 309afterdepend: 310.endif 311.endif 312 313.if defined(SRCS) 314.if ${CTAGS:T} == "gtags" 315CLEANDEPENDFILES+= GPATH GRTAGS GSYMS GTAGS 316.if defined(HTML) 317CLEANDEPENDDIRS+= HTML 318.endif 319.else 320CLEANDEPENDFILES+= tags 321.endif 322.endif 323.if !target(cleandepend) 324cleandepend: 325.if !empty(CLEANDEPENDFILES) 326 rm -f ${CLEANDEPENDFILES} 327.endif 328.if !empty(CLEANDEPENDDIRS) 329 rm -rf ${CLEANDEPENDDIRS} 330.endif 331.endif 332.ORDER: cleandepend all 333.ORDER: cleandepend depend 334.if ${MK_AUTO_OBJ} == "yes" 335.ORDER: cleanobj depend 336.ORDER: cleandir depend 337.endif 338 339.if !target(checkdpadd) && (defined(DPADD) || defined(LDADD)) 340_LDADD_FROM_DPADD= ${DPADD:R:T:C;^lib(.*)$;-l\1;g} 341# Ignore -Wl,--start-group/-Wl,--end-group as it might be required in the 342# LDADD list due to unresolved symbols 343_LDADD_CANONICALIZED= ${LDADD:N:R:T:C;^lib(.*)$;-l\1;g:N-Wl,--[es]*-group} 344checkdpadd: 345.if ${_LDADD_FROM_DPADD} != ${_LDADD_CANONICALIZED} 346 @echo ${.CURDIR} 347 @echo "DPADD -> ${_LDADD_FROM_DPADD}" 348 @echo "LDADD -> ${_LDADD_CANONICALIZED}" 349.endif 350.endif 351