2 # $Id: meta.autodep.mk,v 1.50 2018/06/08 01:25:31 sjg Exp $
5 # @(#) Copyright (c) 2010, Simon J. Gerraty
7 # This file is provided in the hope that it will
8 # be of use. There is absolutely NO WARRANTY.
9 # Permission to copy, redistribute or otherwise
10 # use this file is hereby granted provided that
11 # the above copyright notice and this notice are
14 # Please send copies of changes and bug-fixes to:
18 _this ?= ${.PARSEFILE}
19 .if !target(__${_this}__)
20 __${_this}__: .NOTMAIN
22 .-include <local.autodep.mk>
25 NOSSPPICO?= .nossppico
28 # it would be nice to be able to query .SUFFIXES
29 OBJ_EXTENSIONS+= .o .po .lo ${PICO} ${NOSSPPICO}
31 # explicit dependencies help short-circuit .SUFFIX searches
32 SRCS_DEP_FILTER+= N*.[hly]
33 .for s in ${SRCS:${SRCS_DEP_FILTER:O:u:ts:}}
34 .for e in ${OBJ_EXTENSIONS:O:u}
35 .if !target(${s:T:R}$e)
43 # you are supposed to know what you are doing!
44 UPDATE_DEPENDFILE = yes
45 .elif !empty(.TARGETS) && !make(all)
46 # do not update the *depend* files
47 # unless we are building the entire directory or the default target.
48 # NO means don't update .depend - or Makefile.depend*
49 # no means update .depend but not Makefile.depend*
50 UPDATE_DEPENDFILE = NO
51 .elif ${.MAKEFLAGS:M-k} != ""
52 # it is a bad idea to update anything
53 UPDATE_DEPENDFILE = NO
59 _OBJROOT ?= ${OBJROOT:U${_OBJTOP}}
60 _DEPENDFILE := ${_CURDIR}/${.MAKE.DEPENDFILE:T}
62 .if ${.MAKE.LEVEL} > 0 || ${BUILD_AT_LEVEL0:Uyes:tl} == "yes"
63 # do not allow auto update if we ever built this dir without filemon
64 NO_FILEMON_COOKIE = .nofilemon
65 CLEANFILES += ${NO_FILEMON_COOKIE}
66 .if ${.MAKE.MODE:Uno:Mnofilemon} != ""
67 UPDATE_DEPENDFILE = NO
68 all: ${NO_FILEMON_COOKIE}
69 ${NO_FILEMON_COOKIE}: .NOMETA
70 @echo UPDATE_DEPENDFILE=NO > ${.TARGET}
71 .elif exists(${NO_FILEMON_COOKIE})
72 UPDATE_DEPENDFILE = NO
73 .warning ${RELDIR} built with nofilemon; UPDATE_DEPENDFILE=NO
77 .if ${.MAKE.LEVEL} == 0
78 .if ${BUILD_AT_LEVEL0:Uyes:tl} == "no"
79 UPDATE_DEPENDFILE = NO
82 .if !exists(${_DEPENDFILE})
83 _bootstrap_dirdeps = yes
85 _bootstrap_dirdeps ?= no
86 UPDATE_DEPENDFILE ?= yes
88 .if ${DEBUG_AUTODEP:Uno:@m@${RELDIR:M$m}@} != ""
89 .info ${_DEPENDFILE:S,${SRCTOP}/,,} update=${UPDATE_DEPENDFILE}
92 .if !empty(XMAKE_META_FILE)
93 .if exists(${.OBJDIR}/${XMAKE_META_FILE})
94 # we cannot get accurate dependencies from an update build
95 UPDATE_DEPENDFILE = NO
97 META_XTRAS += ${XMAKE_META_FILE}
101 .if ${_bootstrap_dirdeps} == "yes" || exists(${_DEPENDFILE})
102 # if it isn't supposed to be touched by us the Makefile should have
103 # UPDATE_DEPENDFILE = no
104 WANT_UPDATE_DEPENDFILE ?= yes
107 .if ${WANT_UPDATE_DEPENDFILE:Uno:tl} != "no"
108 .if ${.MAKE.MODE:Uno:Mmeta*} == "" || ${.MAKE.MODE:Uno:M*read*} != ""
109 UPDATE_DEPENDFILE = no
112 .if ${DEBUG_AUTODEP:Uno:@m@${RELDIR:M$m}@} != ""
113 .info ${_DEPENDFILE:S,${SRCTOP}/,,} update=${UPDATE_DEPENDFILE}
116 .if ${UPDATE_DEPENDFILE:tl} == "yes"
117 # sometimes we want .meta files generated to aid debugging/error detection
118 # but do not want to consider them for dependencies
119 # for example the result of running configure
120 # just make sure this is not empty
121 META_FILE_FILTER ?= N.meta
122 # never consider these
123 META_FILE_FILTER += Ndirdeps.cache*
126 # if we have any non-libs in DPADD,
127 # they probably need to be paid attention to
129 FORCE_DPADD = ${DPADD:${DPLIBS:${M_ListToSkip}}:${DPADD_LAST:${M_ListToSkip}}}
131 _nonlibs := ${DPADD:T:Nlib*:N*include}
133 FORCE_DPADD += ${_nonlibs:@x@${DPADD:M*/$x}@}
138 .if !make(gendirdeps)
142 # if we don't have OBJS, then .depend isn't useful
143 .if !target(.depend) && (!empty(OBJS) || ${.ALLTARGETS:M*.o} != "")
144 # some makefiles and/or targets contain
145 # circular dependencies if you dig too deep
146 # (as meta mode is apt to do)
147 # so we provide a means of suppressing them.
148 # the input to the loop below is target: dependency
149 # with just one dependency per line.
150 # Also some targets are not really local, or use random names.
151 # Use local.autodep.mk to provide local additions!
159 # we use ${.MAKE.META.CREATED} to trigger an update but
160 # we process using ${.MAKE.META.FILES}
161 # the double $$ defers initial evaluation
162 # if necessary, we fake .po dependencies, just so the result
163 # in Makefile.depend* is stable
164 # The current objdir may be referred to in various ways
165 OBJDIR_REFS += ${.OBJDIR} ${.OBJDIR:tA} ${_OBJDIR} ${RELOBJTOP}/${RELDIR}
167 # it would be nice to be able to get .SUFFIXES as ${.SUFFIXES}
168 # we actually only care about the .SUFFIXES of files that might be
169 # generated by tools like yacc.
170 DEPEND_SUFFIXES += .c .h .cpp .hpp .cxx .hxx .cc .hh
171 .depend: .NOMETA $${.MAKE.META.CREATED} ${_this}
172 @echo "Updating $@: ${.OODATE:T:[1..8]}"
173 @egrep -i '^R .*\.(${DEPEND_SUFFIXES:tl:O:u:S,^.,,:ts|})$$' /dev/null ${.MAKE.META.FILES:T:O:u:${META_FILE_FILTER:ts:}:M*o.meta} | \
174 sed -e 's, \./, ,${OBJDIR_REFS:O:u:@d@;s, $d/, ,@};/\//d' \
175 -e 's,^\([^/][^/]*\).meta...[0-9]* ,\1: ,' | \
178 case "$$d:" in $$t) continue;; esac; \
179 case "$$t$$d" in ${SUPPRESS_DEPEND:U.:O:u:ts|}) continue;; esac; \
181 done > $@.${.MAKE.PID}
182 @case "${.MAKE.META.FILES:T:M*.po.*}" in \
183 *.po.*) mv $@.${.MAKE.PID} $@;; \
184 *) { cat $@.${.MAKE.PID}; \
185 sed 's,\${NOSSPPICO}:,.o:,;s,\${PICO}:,.o:,;s,\.o:,.po:,' $@.${.MAKE.PID}; } | sort -u > $@; \
186 rm -f $@.${.MAKE.PID};; \
189 # make sure this exists
191 # do _not_ assume that .depend is in any fit state for us to use
192 CAT_DEPEND = /dev/null
193 .if ${.MAKE.LEVEL} > 0
199 .if ${DEBUG_AUTODEP:Uno:@m@${RELDIR:M$m}@} != ""
200 .info ${_DEPENDFILE:S,${SRCTOP}/,,} _depend=${_depend}
203 .if ${UPDATE_DEPENDFILE} == "yes"
204 gendirdeps: ${_DEPENDFILE}
207 .if !target(${_DEPENDFILE})
208 .if ${_bootstrap_dirdeps} == "yes"
209 # We are boot-strapping a new directory
210 # Use DPADD to seed DIRDEPS
212 # anything which matches ${_OBJROOT}* but not ${_OBJTOP}*
213 # needs to be qualified in DIRDEPS
214 # The pseudo machine "host" is used for HOST_TARGET
216 ${DPADD:M${_OBJTOP}*:H:C,${_OBJTOP}[^/]*/,,:N.:O:u} \
217 ${DPADD:M${_OBJROOT}*:N${_OBJTOP}*:N${STAGE_ROOT:U${_OBJTOP}}/*:H:S,${_OBJROOT},,:C,^([^/]+)/(.*),\2.\1,:S,${HOST_TARGET}$,host,:N.*:O:u}
223 .if defined(NEED_GENDIRDEPS_MUTEX)
224 # If a src dir gets built with multiple object dirs,
225 # we need a mutex. Obviously, this is best avoided.
226 # Note if .MAKE.DEPENDFILE is common for all ${MACHINE}
227 # you either need to mutex, or ensure only one machine builds at a time!
228 # lockf is an example of a suitable tool
229 LOCKF ?= /usr/bin/lockf
231 GENDIRDEPS_MUTEXER ?= ${LOCKF} -k
233 .if empty(GENDIRDEPS_MUTEXER)
234 .error NEED_GENDIRDEPS_MUTEX defined, but GENDIRDEPS_MUTEXER not set
236 _gendirdeps_mutex = ${GENDIRDEPS_MUTEXER} ${GENDIRDEPS_MUTEX:U${_CURDIR}/Makefile}
240 # If we have META_XTRAS we most likely did not create them
241 # but we need to behave as if we did.
242 # Avoid adding glob patterns to .MAKE.META.CREATED though.
243 .MAKE.META.CREATED += ${META_XTRAS:N*\**:O:u}
247 .elif ${OPTIMIZE_OBJECT_META_FILES:Uno:tl} == "no"
248 META_FILES = ${.MAKE.META.FILES:T:N.depend*:O:u}
250 # if we have 1000's of .o.meta, ${PICO}.meta etc we need only look at one set
251 # it is left as an exercise for the reader to work out what this does
252 META_FILES = ${.MAKE.META.FILES:T:N.depend*:N*o.meta:O:u} \
253 ${.MAKE.META.FILES:T:M*.${.MAKE.META.FILES:M*o.meta:R:E:O:u:[1]}.meta:O:u}
256 .if ${DEBUG_AUTODEP:Uno:@m@${RELDIR:M$m}@} != ""
257 .info ${_DEPENDFILE:S,${SRCTOP}/,,}: ${_depend} ${.PARSEDIR}/gendirdeps.mk ${META2DEPS} xtras=${META_XTRAS}
260 .if ${.MAKE.LEVEL} > 0
261 .if ${UPDATE_DEPENDFILE} == "yes"
262 .-include <${.CURDIR}/${.MAKE.DEPENDFILE_PREFIX}.options>
264 .if !empty(GENDIRDEPS_FILTER)
265 .export GENDIRDEPS_FILTER
267 # export to avoid blowing command line limit
268 META_FILES := ${META_XTRAS:U:O:u} ${META_FILES:U:T:O:u:${META_FILE_FILTER:ts:}}
272 # we might have .../ in MAKESYSPATH
273 _makesyspath:= ${_PARSEDIR}
274 ${_DEPENDFILE}: ${_depend} ${.PARSEDIR}/gendirdeps.mk ${META2DEPS} $${.MAKE.META.CREATED}
275 @echo Checking $@: ${.OODATE:T:[1..8]}
276 @(cd . && ${GENDIRDEPS_ENV} \
277 SKIP_GENDIRDEPS='${SKIP_GENDIRDEPS:O:u}' \
278 DPADD='${FORCE_DPADD:O:u}' ${_gendirdeps_mutex} \
279 MAKESYSPATH=${_makesyspath} \
280 ${.MAKE} -f gendirdeps.mk RELDIR=${RELDIR} _DEPENDFILE=${_DEPENDFILE})
281 @test -s $@ && touch $@; :
287 .if ${_bootstrap_dirdeps} == "yes"
288 .if ${BUILD_AT_LEVEL0:Uno} == "no"
289 DIRDEPS+= ${RELDIR}.${TARGET_SPEC:U${MACHINE}}
291 # make sure this is included at least once
292 .include <dirdeps.mk>
294 ${_DEPENDFILE}: .PRECIOUS
297 CLEANFILES += *.meta filemon.* *.db
299 # these make it easy to gather some stats
300 now_utc = ${%s:L:gmtime}
301 start_utc := ${now_utc}
303 meta_stats= meta=${empty(.MAKE.META.FILES):?0:${.MAKE.META.FILES:[#]}} \
304 created=${empty(.MAKE.META.CREATED):?0:${.MAKE.META.CREATED:[#]}}
306 #.END: _reldir_finish
307 .if target(gendirdeps)
308 _reldir_finish: gendirdeps
310 _reldir_finish: .NOMETA
311 @echo "${TIME_STAMP} Finished ${RELDIR}.${TARGET_SPEC} seconds=$$(( ${now_utc} - ${start_utc} )) ${meta_stats}"
313 #.ERROR: _reldir_failed
314 _reldir_failed: .NOMETA
315 @echo "${TIME_STAMP} Failed ${RELDIR}.${TARGET_SPEC} seconds=$$(( ${now_utc} - ${start_utc} )) ${meta_stats}"
317 .if defined(WITH_META_STATS) && ${.MAKE.LEVEL} > 0
319 .ERROR: _reldir_failed