2 # $Id: meta.autodep.mk,v 1.53 2020/11/08 05:47:56 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>
27 # it would be nice to be able to query .SUFFIXES
28 OBJ_EXTENSIONS+= .o .po .lo ${PICO}
30 # explicit dependencies help short-circuit .SUFFIX searches
31 SRCS_DEP_FILTER+= N*.[hly]
32 .for s in ${SRCS:${SRCS_DEP_FILTER:O:u:ts:}}
33 .for e in ${OBJ_EXTENSIONS:O:u}
34 .if !target(${s:T:R}$e)
42 # you are supposed to know what you are doing!
43 UPDATE_DEPENDFILE = yes
44 .elif !empty(.TARGETS) && !make(all)
45 # do not update the *depend* files
46 # unless we are building the entire directory or the default target.
47 # NO means don't update .depend - or Makefile.depend*
48 # no means update .depend but not Makefile.depend*
49 UPDATE_DEPENDFILE = NO
50 .elif ${.MAKEFLAGS:M-k} != ""
51 # it is a bad idea to update anything
52 UPDATE_DEPENDFILE = NO
58 _OBJROOT ?= ${OBJROOT:U${_OBJTOP}}
59 _DEPENDFILE := ${_CURDIR}/${.MAKE.DEPENDFILE:T}
61 .if ${.MAKE.LEVEL} > 0
62 # do not allow auto update if we ever built this dir without filemon
63 NO_FILEMON_COOKIE = .nofilemon
64 CLEANFILES += ${NO_FILEMON_COOKIE}
65 .if ${.MAKE.MODE:Uno:Mnofilemon} != ""
66 UPDATE_DEPENDFILE = NO
67 all: ${NO_FILEMON_COOKIE}
68 ${NO_FILEMON_COOKIE}: .NOMETA
69 @echo UPDATE_DEPENDFILE=NO > ${.TARGET}
70 .elif exists(${NO_FILEMON_COOKIE})
71 UPDATE_DEPENDFILE = NO
72 .warning ${RELDIR} built with nofilemon; UPDATE_DEPENDFILE=NO
76 .if ${.MAKE.LEVEL} == 0
77 UPDATE_DEPENDFILE = NO
79 .if !exists(${_DEPENDFILE})
80 _bootstrap_dirdeps = yes
82 _bootstrap_dirdeps ?= no
83 UPDATE_DEPENDFILE ?= yes
85 .if ${DEBUG_AUTODEP:Uno:@m@${RELDIR:M$m}@} != ""
86 .info ${_DEPENDFILE:S,${SRCTOP}/,,} update=${UPDATE_DEPENDFILE}
89 .if !empty(XMAKE_META_FILE)
90 .if exists(${.OBJDIR}/${XMAKE_META_FILE})
91 # we cannot get accurate dependencies from an update build
92 UPDATE_DEPENDFILE = NO
94 META_XTRAS += ${XMAKE_META_FILE}
98 .if ${_bootstrap_dirdeps} == "yes" || exists(${_DEPENDFILE})
99 # if it isn't supposed to be touched by us the Makefile should have
100 # UPDATE_DEPENDFILE = no
101 WANT_UPDATE_DEPENDFILE ?= yes
104 .if ${WANT_UPDATE_DEPENDFILE:Uno:tl} != "no"
105 .if ${.MAKE.MODE:Uno:Mmeta*} == "" || ${.MAKE.MODE:Uno:M*read*} != ""
106 UPDATE_DEPENDFILE = no
109 .if ${DEBUG_AUTODEP:Uno:@m@${RELDIR:M$m}@} != ""
110 .info ${_DEPENDFILE:S,${SRCTOP}/,,} update=${UPDATE_DEPENDFILE}
113 .if ${UPDATE_DEPENDFILE:tl} == "yes"
114 # sometimes we want .meta files generated to aid debugging/error detection
115 # but do not want to consider them for dependencies
116 # for example the result of running configure
117 # just make sure this is not empty
118 META_FILE_FILTER ?= N.meta
119 # never consider these
120 META_FILE_FILTER += Ndirdeps.cache*
123 # if we have any non-libs in DPADD,
124 # they probably need to be paid attention to
126 FORCE_DPADD = ${DPADD:${DPLIBS:${M_ListToSkip}}:${DPADD_LAST:${M_ListToSkip}}}
128 _nonlibs := ${DPADD:T:Nlib*:N*include}
130 FORCE_DPADD += ${_nonlibs:@x@${DPADD:M*/$x}@}
135 .if !make(gendirdeps)
139 # if we don't have OBJS, then .depend isn't useful
140 .if !target(.depend) && (!empty(OBJS) || ${.ALLTARGETS:M*.o} != "")
141 # some makefiles and/or targets contain
142 # circular dependencies if you dig too deep
143 # (as meta mode is apt to do)
144 # so we provide a means of suppressing them.
145 # the input to the loop below is target: dependency
146 # with just one dependency per line.
147 # Also some targets are not really local, or use random names.
148 # Use local.autodep.mk to provide local additions!
156 # we use ${.MAKE.META.CREATED} to trigger an update but
157 # we process using ${.MAKE.META.FILES}
158 # the double $$ defers initial evaluation
159 # if necessary, we fake .po dependencies, just so the result
160 # in Makefile.depend* is stable
161 # The current objdir may be referred to in various ways
162 OBJDIR_REFS += ${.OBJDIR} ${.OBJDIR:tA} ${_OBJDIR} ${RELOBJTOP}/${RELDIR}
164 # it would be nice to be able to get .SUFFIXES as ${.SUFFIXES}
165 # we actually only care about the .SUFFIXES of files that might be
166 # generated by tools like yacc.
167 DEPEND_SUFFIXES += .c .h .cpp .hpp .cxx .hxx .cc .hh
168 .depend: .NOMETA $${.MAKE.META.CREATED} ${_this}
169 @echo "Updating $@: ${.OODATE:T:[1..8]}"
170 @egrep -i '^R .*\.(${DEPEND_SUFFIXES:tl:O:u:S,^.,,:ts|})$$' /dev/null ${.MAKE.META.FILES:T:O:u:${META_FILE_FILTER:ts:}:M*o.meta} | \
171 sed -e 's, \./, ,${OBJDIR_REFS:O:u:@d@;s, $d/, ,@};/\//d' \
172 -e 's,^\([^/][^/]*\).meta...[0-9]* ,\1: ,' | \
175 case "$$d:" in $$t) continue;; esac; \
176 case "$$t$$d" in ${SUPPRESS_DEPEND:U.:O:u:ts|}) continue;; esac; \
178 done > $@.${.MAKE.PID}
179 @case "${.MAKE.META.FILES:T:M*.po.*}" in \
180 *.po.*) mv $@.${.MAKE.PID} $@;; \
181 *) { cat $@.${.MAKE.PID}; \
182 sed ${OBJ_EXTENSIONS:N.o:N.po:@o@-e 's,\$o:,.o:,'@} \
183 -e '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} $${.MAKE.META.CREATED}
273 @echo Checking $@: ${.OODATE:T:[1..8]}
274 @(cd . && ${GENDIRDEPS_ENV} \
275 SKIP_GENDIRDEPS='${SKIP_GENDIRDEPS:O:u}' \
276 DPADD='${FORCE_DPADD:O:u}' ${_gendirdeps_mutex} \
277 MAKESYSPATH=${_makesyspath} \
278 ${.MAKE} -f gendirdeps.mk RELDIR=${RELDIR} _DEPENDFILE=${_DEPENDFILE})
279 @test -s $@ && touch $@; :
285 .if ${_bootstrap_dirdeps} == "yes"
286 DIRDEPS+= ${RELDIR}.${TARGET_SPEC:U${MACHINE}}
287 # make sure this is included at least once
288 .include <dirdeps.mk>
290 ${_DEPENDFILE}: .PRECIOUS
293 CLEANFILES += *.meta filemon.* *.db
295 # these make it easy to gather some stats
296 now_utc = ${%s:L:gmtime}
297 start_utc := ${now_utc}
299 meta_stats= meta=${empty(.MAKE.META.FILES):?0:${.MAKE.META.FILES:[#]}} \
300 created=${empty(.MAKE.META.CREATED):?0:${.MAKE.META.CREATED:[#]}}
302 #.END: _reldir_finish
303 .if target(gendirdeps)
304 _reldir_finish: gendirdeps
306 _reldir_finish: .NOMETA
307 @echo "${TIME_STAMP} Finished ${RELDIR}.${TARGET_SPEC} seconds=$$(( ${now_utc} - ${start_utc} )) ${meta_stats}"
309 #.ERROR: _reldir_failed
310 _reldir_failed: .NOMETA
311 @echo "${TIME_STAMP} Failed ${RELDIR}.${TARGET_SPEC} seconds=$$(( ${now_utc} - ${start_utc} )) ${meta_stats}"
313 .if !defined(WITHOUT_META_STATS) && ${.MAKE.LEVEL} > 0
315 .ERROR: _reldir_failed