1 # $Id: meta.autodep.mk,v 1.50 2018/06/08 01:25:31 sjg Exp $
4 # @(#) Copyright (c) 2010, Simon J. Gerraty
6 # This file is provided in the hope that it will
7 # be of use. There is absolutely NO WARRANTY.
8 # Permission to copy, redistribute or otherwise
9 # use this file is hereby granted provided that
10 # the above copyright notice and this notice are
13 # Please send copies of changes and bug-fixes to:
17 _this ?= ${.PARSEFILE}
18 .if !target(__${_this}__)
19 __${_this}__: .NOTMAIN
21 .-include <local.autodep.mk>
26 # it would be nice to be able to query .SUFFIXES
27 OBJ_EXTENSIONS+= .o .po .lo ${PICO}
29 # explicit dependencies help short-circuit .SUFFIX searches
30 SRCS_DEP_FILTER+= N*.[hly]
31 .for s in ${SRCS:${SRCS_DEP_FILTER:O:u:ts:}}
32 .for e in ${OBJ_EXTENSIONS:O:u}
33 .if !target(${s:T:R}$e)
41 # you are supposed to know what you are doing!
42 UPDATE_DEPENDFILE = yes
43 .elif !empty(.TARGETS) && !make(all)
44 # do not update the *depend* files
45 # unless we are building the entire directory or the default target.
46 # NO means don't update .depend - or Makefile.depend*
47 # no means update .depend but not Makefile.depend*
48 UPDATE_DEPENDFILE = NO
49 .elif ${.MAKEFLAGS:M-k} != ""
50 # it is a bad idea to update anything
51 UPDATE_DEPENDFILE = NO
57 _OBJROOT ?= ${OBJROOT:U${_OBJTOP}}
58 _DEPENDFILE := ${_CURDIR}/${.MAKE.DEPENDFILE:T}
60 .if ${.MAKE.LEVEL} > 0 || ${BUILD_AT_LEVEL0:Uyes:tl} == "yes"
61 # do not allow auto update if we ever built this dir without filemon
62 NO_FILEMON_COOKIE = .nofilemon
63 CLEANFILES += ${NO_FILEMON_COOKIE}
64 .if ${.MAKE.MODE:Uno:Mnofilemon} != ""
65 UPDATE_DEPENDFILE = NO
66 all: ${NO_FILEMON_COOKIE}
67 ${NO_FILEMON_COOKIE}: .NOMETA
68 @echo UPDATE_DEPENDFILE=NO > ${.TARGET}
69 .elif exists(${NO_FILEMON_COOKIE})
70 UPDATE_DEPENDFILE = NO
71 .warning ${RELDIR} built with nofilemon; UPDATE_DEPENDFILE=NO
75 .if ${.MAKE.LEVEL} == 0
76 .if ${BUILD_AT_LEVEL0:Uyes:tl} == "no"
77 UPDATE_DEPENDFILE = NO
80 .if !exists(${_DEPENDFILE})
81 _bootstrap_dirdeps = yes
83 _bootstrap_dirdeps ?= no
84 UPDATE_DEPENDFILE ?= yes
86 .if ${DEBUG_AUTODEP:Uno:@m@${RELDIR:M$m}@} != ""
87 .info ${_DEPENDFILE:S,${SRCTOP}/,,} update=${UPDATE_DEPENDFILE}
90 .if !empty(XMAKE_META_FILE)
91 .if exists(${.OBJDIR}/${XMAKE_META_FILE})
92 # we cannot get accurate dependencies from an update build
93 UPDATE_DEPENDFILE = NO
95 META_XTRAS += ${XMAKE_META_FILE}
99 .if ${_bootstrap_dirdeps} == "yes" || exists(${_DEPENDFILE})
100 # if it isn't supposed to be touched by us the Makefile should have
101 # UPDATE_DEPENDFILE = no
102 WANT_UPDATE_DEPENDFILE ?= yes
105 .if ${WANT_UPDATE_DEPENDFILE:Uno:tl} != "no"
106 .if ${.MAKE.MODE:Uno:Mmeta*} == "" || ${.MAKE.MODE:Uno:M*read*} != ""
107 UPDATE_DEPENDFILE = no
110 .if ${DEBUG_AUTODEP:Uno:@m@${RELDIR:M$m}@} != ""
111 .info ${_DEPENDFILE:S,${SRCTOP}/,,} update=${UPDATE_DEPENDFILE}
114 .if ${UPDATE_DEPENDFILE:tl} == "yes"
115 # sometimes we want .meta files generated to aid debugging/error detection
116 # but do not want to consider them for dependencies
117 # for example the result of running configure
118 # just make sure this is not empty
119 META_FILE_FILTER ?= N.meta
120 # never consider these
121 META_FILE_FILTER += Ndirdeps.cache*
124 # if we have any non-libs in DPADD,
125 # they probably need to be paid attention to
127 FORCE_DPADD = ${DPADD:${DPLIBS:${M_ListToSkip}}:${DPADD_LAST:${M_ListToSkip}}}
129 _nonlibs := ${DPADD:T:Nlib*:N*include}
131 FORCE_DPADD += ${_nonlibs:@x@${DPADD:M*/$x}@}
136 .if !make(gendirdeps)
140 # if we don't have OBJS, then .depend isn't useful
141 .if !target(.depend) && (!empty(OBJS) || ${.ALLTARGETS:M*.o} != "")
142 # some makefiles and/or targets contain
143 # circular dependencies if you dig too deep
144 # (as meta mode is apt to do)
145 # so we provide a means of suppressing them.
146 # the input to the loop below is target: dependency
147 # with just one dependency per line.
148 # Also some targets are not really local, or use random names.
149 # Use local.autodep.mk to provide local additions!
157 # we use ${.MAKE.META.CREATED} to trigger an update but
158 # we process using ${.MAKE.META.FILES}
159 # the double $$ defers initial evaluation
160 # if necessary, we fake .po dependencies, just so the result
161 # in Makefile.depend* is stable
162 # The current objdir may be referred to in various ways
163 OBJDIR_REFS += ${.OBJDIR} ${.OBJDIR:tA} ${_OBJDIR} ${RELOBJTOP}/${RELDIR}
165 # it would be nice to be able to get .SUFFIXES as ${.SUFFIXES}
166 # we actually only care about the .SUFFIXES of files that might be
167 # generated by tools like yacc.
168 DEPEND_SUFFIXES += .c .h .cpp .hpp .cxx .hxx .cc .hh
169 .depend: .NOMETA $${.MAKE.META.CREATED} ${_this}
170 @echo "Updating $@: ${.OODATE:T:[1..8]}"
171 @egrep -i '^R .*\.(${DEPEND_SUFFIXES:tl:O:u:S,^.,,:ts|})$$' /dev/null ${.MAKE.META.FILES:T:O:u:${META_FILE_FILTER:ts:}:M*o.meta} | \
172 sed -e 's, \./, ,${OBJDIR_REFS:O:u:@d@;s, $d/, ,@};/\//d' \
173 -e 's,^\([^/][^/]*\).meta...[0-9]* ,\1: ,' | \
176 case "$$d:" in $$t) continue;; esac; \
177 case "$$t$$d" in ${SUPPRESS_DEPEND:U.:O:u:ts|}) continue;; esac; \
179 done > $@.${.MAKE.PID}
180 @case "${.MAKE.META.FILES:T:M*.po.*}" in \
181 *.po.*) mv $@.${.MAKE.PID} $@;; \
182 *) { cat $@.${.MAKE.PID}; \
183 sed 's,\${PICO}:,.o:,;s,\.o:,.po:,' $@.${.MAKE.PID}; } | sort -u > $@; \
184 rm -f $@.${.MAKE.PID};; \
187 # make sure this exists
189 # do _not_ assume that .depend is in any fit state for us to use
190 CAT_DEPEND = /dev/null
191 .if ${.MAKE.LEVEL} > 0
197 .if ${DEBUG_AUTODEP:Uno:@m@${RELDIR:M$m}@} != ""
198 .info ${_DEPENDFILE:S,${SRCTOP}/,,} _depend=${_depend}
201 .if ${UPDATE_DEPENDFILE} == "yes"
202 gendirdeps: ${_DEPENDFILE}
205 .if !target(${_DEPENDFILE})
206 .if ${_bootstrap_dirdeps} == "yes"
207 # We are boot-strapping a new directory
208 # Use DPADD to seed DIRDEPS
210 # anything which matches ${_OBJROOT}* but not ${_OBJTOP}*
211 # needs to be qualified in DIRDEPS
212 # The pseudo machine "host" is used for HOST_TARGET
214 ${DPADD:M${_OBJTOP}*:H:C,${_OBJTOP}[^/]*/,,:N.:O:u} \
215 ${DPADD:M${_OBJROOT}*:N${_OBJTOP}*:N${STAGE_ROOT:U${_OBJTOP}}/*:H:S,${_OBJROOT},,:C,^([^/]+)/(.*),\2.\1,:S,${HOST_TARGET}$,host,:N.*:O:u}
221 .if defined(NEED_GENDIRDEPS_MUTEX)
222 # If a src dir gets built with multiple object dirs,
223 # we need a mutex. Obviously, this is best avoided.
224 # Note if .MAKE.DEPENDFILE is common for all ${MACHINE}
225 # you either need to mutex, or ensure only one machine builds at a time!
226 # lockf is an example of a suitable tool
227 LOCKF ?= /usr/bin/lockf
229 GENDIRDEPS_MUTEXER ?= ${LOCKF} -k
231 .if empty(GENDIRDEPS_MUTEXER)
232 .error NEED_GENDIRDEPS_MUTEX defined, but GENDIRDEPS_MUTEXER not set
234 _gendirdeps_mutex = ${GENDIRDEPS_MUTEXER} ${GENDIRDEPS_MUTEX:U${_CURDIR}/Makefile}
238 # If we have META_XTRAS we most likely did not create them
239 # but we need to behave as if we did.
240 # Avoid adding glob patterns to .MAKE.META.CREATED though.
241 .MAKE.META.CREATED += ${META_XTRAS:N*\**:O:u}
245 .elif ${OPTIMIZE_OBJECT_META_FILES:Uno:tl} == "no"
246 META_FILES = ${.MAKE.META.FILES:T:N.depend*:O:u}
248 # if we have 1000's of .o.meta, ${PICO}.meta etc we need only look at one set
249 # it is left as an exercise for the reader to work out what this does
250 META_FILES = ${.MAKE.META.FILES:T:N.depend*:N*o.meta:O:u} \
251 ${.MAKE.META.FILES:T:M*.${.MAKE.META.FILES:M*o.meta:R:E:O:u:[1]}.meta:O:u}
254 .if ${DEBUG_AUTODEP:Uno:@m@${RELDIR:M$m}@} != ""
255 .info ${_DEPENDFILE:S,${SRCTOP}/,,}: ${_depend} ${.PARSEDIR}/gendirdeps.mk ${META2DEPS} xtras=${META_XTRAS}
258 .if ${.MAKE.LEVEL} > 0
259 .if ${UPDATE_DEPENDFILE} == "yes"
260 .-include <${.CURDIR}/${.MAKE.DEPENDFILE_PREFIX}.options>
262 .if !empty(GENDIRDEPS_FILTER)
263 .export GENDIRDEPS_FILTER
265 # export to avoid blowing command line limit
266 META_FILES := ${META_XTRAS:U:O:u} ${META_FILES:U:T:O:u:${META_FILE_FILTER:ts:}}
270 # we might have .../ in MAKESYSPATH
271 _makesyspath:= ${_PARSEDIR}
272 ${_DEPENDFILE}: ${_depend} ${.PARSEDIR}/gendirdeps.mk ${META2DEPS} $${.MAKE.META.CREATED}
273 @echo Checking $@: ${.OODATE:T:[1..8]}
274 @(cd . && ${GENDIRDEPS_ENV} \
275 SKIP_GENDIRDEPS='${SKIP_GENDIRDEPS:O:u}' \
276 DPADD='${FORCE_DPADD:O:u}' ${_gendirdeps_mutex} \
277 MAKESYSPATH=${_makesyspath} \
278 ${.MAKE} -f gendirdeps.mk RELDIR=${RELDIR} _DEPENDFILE=${_DEPENDFILE})
279 @test -s $@ && touch $@; :
285 .if ${_bootstrap_dirdeps} == "yes"
286 .if ${BUILD_AT_LEVEL0:Uno} == "no"
287 DIRDEPS+= ${RELDIR}.${TARGET_SPEC:U${MACHINE}}
289 # make sure this is included at least once
290 .include <dirdeps.mk>
292 ${_DEPENDFILE}: .PRECIOUS
295 CLEANFILES += *.meta filemon.* *.db
297 # these make it easy to gather some stats
298 now_utc = ${%s:L:gmtime}
299 start_utc := ${now_utc}
301 meta_stats= meta=${empty(.MAKE.META.FILES):?0:${.MAKE.META.FILES:[#]}} \
302 created=${empty(.MAKE.META.CREATED):?0:${.MAKE.META.CREATED:[#]}}
304 #.END: _reldir_finish
305 .if target(gendirdeps)
306 _reldir_finish: gendirdeps
308 _reldir_finish: .NOMETA
309 @echo "${TIME_STAMP} Finished ${RELDIR}.${TARGET_SPEC} seconds=$$(( ${now_utc} - ${start_utc} )) ${meta_stats}"
311 #.ERROR: _reldir_failed
312 _reldir_failed: .NOMETA
313 @echo "${TIME_STAMP} Failed ${RELDIR}.${TARGET_SPEC} seconds=$$(( ${now_utc} - ${start_utc} )) ${meta_stats}"
315 .if defined(WITH_META_STATS) && ${.MAKE.LEVEL} > 0
317 .ERROR: _reldir_failed