1# $FreeBSD$ 2# $Id: dirdeps.mk,v 1.62 2016/03/16 00:11:53 sjg Exp $ 3 4# Copyright (c) 2010-2013, Juniper Networks, Inc. 5# All rights reserved. 6# 7# Redistribution and use in source and binary forms, with or without 8# modification, are permitted provided that the following conditions 9# are met: 10# 1. Redistributions of source code must retain the above copyright 11# notice, this list of conditions and the following disclaimer. 12# 2. Redistributions in binary form must reproduce the above copyright 13# notice, this list of conditions and the following disclaimer in the 14# documentation and/or other materials provided with the distribution. 15# 16# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 28# Much of the complexity here is for supporting cross-building. 29# If a tree does not support that, simply using plain Makefile.depend 30# should provide sufficient clue. 31# Otherwise the recommendation is to use Makefile.depend.${MACHINE} 32# as expected below. 33 34# Note: this file gets multiply included. 35# This is what we do with DIRDEPS 36 37# DIRDEPS: 38# This is a list of directories - relative to SRCTOP, it is 39# normally only of interest to .MAKE.LEVEL 0. 40# In some cases the entry may be qualified with a .<machine> 41# or .<target_spec> suffix (see TARGET_SPEC_VARS below), 42# for example to force building something for the pseudo 43# machines "host" or "common" regardless of current ${MACHINE}. 44# 45# All unqualified entries end up being qualified with .${TARGET_SPEC} 46# and partially qualified (if TARGET_SPEC_VARS has multiple 47# entries) are also expanded to a full .<target_spec>. 48# The _DIRDEP_USE target uses the suffix to set TARGET_SPEC 49# correctly when visiting each entry. 50# 51# The fully qualified directory entries are used to construct a 52# dependency graph that will drive the build later. 53# 54# Also, for each fully qualified directory target, we will search 55# using ${.MAKE.DEPENDFILE_PREFERENCE} to find additional 56# dependencies. We use Makefile.depend (default value for 57# .MAKE.DEPENDFILE_PREFIX) to refer to these makefiles to 58# distinguish them from others. 59# 60# Each Makefile.depend file sets DEP_RELDIR to be the 61# the RELDIR (path relative to SRCTOP) for its directory, and 62# since each Makefile.depend file includes dirdeps.mk, this 63# processing is recursive and results in .MAKE.LEVEL 0 learning the 64# dependencies of the tree wrt the initial directory (_DEP_RELDIR). 65# 66# BUILD_AT_LEVEL0 67# Indicates whether .MAKE.LEVEL 0 builds anything: 68# if "no" sub-makes are used to build everything, 69# if "yes" sub-makes are only used to build for other machines. 70# It is best to use "no", but this can require fixing some 71# makefiles to not do anything at .MAKE.LEVEL 0. 72# 73# TARGET_SPEC_VARS 74# The default value is just MACHINE, and for most environments 75# this is sufficient. The _DIRDEP_USE target actually sets 76# both MACHINE and TARGET_SPEC to the suffix of the current 77# target so that in the general case TARGET_SPEC can be ignored. 78# 79# If more than MACHINE is needed then sys.mk needs to decompose 80# TARGET_SPEC and set the relevant variables accordingly. 81# It is important that MACHINE be included in and actually be 82# the first member of TARGET_SPEC_VARS. This allows other 83# variables to be considered optional, and some of the treatment 84# below relies on MACHINE being the first entry. 85# Note: TARGET_SPEC cannot contain any '.'s so the target 86# triple used by compiler folk won't work (directly anyway). 87# 88# For example: 89# 90# # Always list MACHINE first, 91# # other variables might be optional. 92# TARGET_SPEC_VARS = MACHINE TARGET_OS 93# .if ${TARGET_SPEC:Uno:M*,*} != "" 94# _tspec := ${TARGET_SPEC:S/,/ /g} 95# MACHINE := ${_tspec:[1]} 96# TARGET_OS := ${_tspec:[2]} 97# # etc. 98# # We need to stop that TARGET_SPEC affecting any submakes 99# # and deal with MACHINE=${TARGET_SPEC} in the environment. 100# TARGET_SPEC = 101# # export but do not track 102# .export-env TARGET_SPEC 103# .export ${TARGET_SPEC_VARS} 104# .for v in ${TARGET_SPEC_VARS:O:u} 105# .if empty($v) 106# .undef $v 107# .endif 108# .endfor 109# .endif 110# # make sure we know what TARGET_SPEC is 111# # as we may need it to find Makefile.depend* 112# TARGET_SPEC = ${TARGET_SPEC_VARS:@v@${$v:U}@:ts,} 113# 114 115# touch this at your peril 116_DIRDEP_USE_LEVEL?= 0 117.if ${.MAKE.LEVEL} == ${_DIRDEP_USE_LEVEL} 118# only the first instance is interested in all this 119 120# First off, we want to know what ${MACHINE} to build for. 121# This can be complicated if we are using a mixture of ${MACHINE} specific 122# and non-specific Makefile.depend* 123 124.if !target(_DIRDEP_USE) 125# make sure we get the behavior we expect 126.MAKE.SAVE_DOLLARS = no 127 128# do some setup we only need once 129_CURDIR ?= ${.CURDIR} 130_OBJDIR ?= ${.OBJDIR} 131 132now_utc = ${%s:L:gmtime} 133.if !defined(start_utc) 134start_utc := ${now_utc} 135.endif 136 137# make sure these are empty to start with 138_DEP_TARGET_SPEC = 139 140# If TARGET_SPEC_VARS is other than just MACHINE 141# it should be set by sys.mk or similar by now. 142# TARGET_SPEC must not contain any '.'s. 143TARGET_SPEC_VARS ?= MACHINE 144# this is what we started with 145TARGET_SPEC = ${TARGET_SPEC_VARS:@v@${$v:U}@:ts,} 146# this is what we mostly use below 147DEP_TARGET_SPEC = ${TARGET_SPEC_VARS:S,^,DEP_,:@v@${$v:U}@:ts,} 148# make sure we have defaults 149.for v in ${TARGET_SPEC_VARS} 150DEP_$v ?= ${$v} 151.endfor 152 153.if ${TARGET_SPEC_VARS:[#]} > 1 154# Ok, this gets more complex (putting it mildly). 155# In order to stay sane, we need to ensure that all the build_dirs 156# we compute below are fully qualified wrt DEP_TARGET_SPEC. 157# The makefiles may only partially specify (eg. MACHINE only), 158# so we need to construct a set of modifiers to fill in the gaps. 159# jot 10 should output 1 2 3 .. 10 160JOT ?= jot 161_tspec_x := ${${JOT} ${TARGET_SPEC_VARS:[#]}:L:sh} 162# this handles unqualified entries 163M_dep_qual_fixes = C;(/[^/.,]+)$$;\1.$${DEP_TARGET_SPEC}; 164# there needs to be at least one item missing for these to make sense 165.for i in ${_tspec_x:[2..-1]} 166_tspec_m$i := ${TARGET_SPEC_VARS:[2..$i]:@w@[^,]+@:ts,} 167_tspec_a$i := ,${TARGET_SPEC_VARS:[$i..-1]:@v@$$$${DEP_$v}@:ts,} 168M_dep_qual_fixes += C;(\.${_tspec_m$i})$$;\1${_tspec_a$i}; 169.endfor 170.else 171# A harmless? default. 172M_dep_qual_fixes = U 173.endif 174 175.if !defined(.MAKE.DEPENDFILE_PREFERENCE) 176# .MAKE.DEPENDFILE_PREFERENCE makes the logic below neater? 177# you really want this set by sys.mk or similar 178.MAKE.DEPENDFILE_PREFERENCE = ${_CURDIR}/${.MAKE.DEPENDFILE:T} 179.if ${.MAKE.DEPENDFILE:E} == "${TARGET_SPEC}" 180.if ${TARGET_SPEC} != ${MACHINE} 181.MAKE.DEPENDFILE_PREFERENCE += ${_CURDIR}/${.MAKE.DEPENDFILE:T:R}.$${MACHINE} 182.endif 183.MAKE.DEPENDFILE_PREFERENCE += ${_CURDIR}/${.MAKE.DEPENDFILE:T:R} 184.endif 185.endif 186 187_default_dependfile := ${.MAKE.DEPENDFILE_PREFERENCE:[1]:T} 188_machine_dependfiles := ${.MAKE.DEPENDFILE_PREFERENCE:T:M*${MACHINE}*} 189 190# for machine specific dependfiles we require ${MACHINE} to be at the end 191# also for the sake of sanity we require a common prefix 192.if !defined(.MAKE.DEPENDFILE_PREFIX) 193# knowing .MAKE.DEPENDFILE_PREFIX helps 194.if !empty(_machine_dependfiles) 195.MAKE.DEPENDFILE_PREFIX := ${_machine_dependfiles:[1]:T:R} 196.else 197.MAKE.DEPENDFILE_PREFIX := ${_default_dependfile:T} 198.endif 199.endif 200 201 202# this is how we identify non-machine specific dependfiles 203N_notmachine := ${.MAKE.DEPENDFILE_PREFERENCE:E:N*${MACHINE}*:${M_ListToSkip}} 204 205.endif # !target(_DIRDEP_USE) 206 207# if we were included recursively _DEP_TARGET_SPEC should be valid. 208.if empty(_DEP_TARGET_SPEC) 209# we may or may not have included a dependfile yet 210.if defined(.INCLUDEDFROMFILE) 211_last_dependfile := ${.INCLUDEDFROMFILE:M${.MAKE.DEPENDFILE_PREFIX}*} 212.else 213_last_dependfile := ${.MAKE.MAKEFILES:M*/${.MAKE.DEPENDFILE_PREFIX}*:[-1]} 214.endif 215.if ${_debug_reldir:U0} 216.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: _last_dependfile='${_last_dependfile}' 217.endif 218 219.if empty(_last_dependfile) || ${_last_dependfile:E:${N_notmachine}} == "" 220# this is all we have to work with 221DEP_MACHINE = ${TARGET_MACHINE:U${MACHINE}} 222_DEP_TARGET_SPEC := ${DEP_TARGET_SPEC} 223.else 224_DEP_TARGET_SPEC = ${_last_dependfile:${M_dep_qual_fixes:ts:}:E} 225.endif 226.if !empty(_last_dependfile) 227# record that we've read dependfile for this 228_dirdeps_checked.${_CURDIR}.${TARGET_SPEC}: 229.endif 230.endif 231 232# by now _DEP_TARGET_SPEC should be set, parse it. 233.if ${TARGET_SPEC_VARS:[#]} > 1 234# we need to parse DEP_MACHINE may or may not contain more info 235_tspec := ${_DEP_TARGET_SPEC:S/,/ /g} 236.for i in ${_tspec_x} 237DEP_${TARGET_SPEC_VARS:[$i]} := ${_tspec:[$i]} 238.endfor 239.for v in ${TARGET_SPEC_VARS:O:u} 240.if empty(DEP_$v) 241.undef DEP_$v 242.endif 243.endfor 244.else 245DEP_MACHINE := ${_DEP_TARGET_SPEC} 246.endif 247 248.if ${MAKEFILE:T} == ${.PARSEFILE} && empty(DIRDEPS) && ${.TARGETS:Uall:M*/*} != "" 249# This little trick let's us do 250# 251# mk -f dirdeps.mk some/dir.${TARGET_SPEC} 252# 253all: 254${.TARGETS:Nall}: all 255DIRDEPS := ${.TARGETS:M*/*} 256# so that -DNO_DIRDEPS works 257DEP_RELDIR := ${DIRDEPS:R:[1]} 258# disable DIRDEPS_CACHE as it does not like this trick 259MK_DIRDEPS_CACHE = no 260.endif 261 262# reset each time through 263_build_all_dirs = 264 265# the first time we are included the _DIRDEP_USE target will not be defined 266# we can use this as a clue to do initialization and other one time things. 267.if !target(_DIRDEP_USE) 268# make sure this target exists 269dirdeps: beforedirdeps .WAIT 270beforedirdeps: 271 272# We normally expect to be included by Makefile.depend.* 273# which sets the DEP_* macros below. 274DEP_RELDIR ?= ${RELDIR} 275 276# this can cause lots of output! 277# set to a set of glob expressions that might match RELDIR 278DEBUG_DIRDEPS ?= no 279 280# remember the initial value of DEP_RELDIR - we test for it below. 281_DEP_RELDIR := ${DEP_RELDIR} 282 283.endif 284 285# pickup customizations 286# as below you can use !target(_DIRDEP_USE) to protect things 287# which should only be done once. 288.-include "local.dirdeps.mk" 289 290.if !target(_DIRDEP_USE) 291# things we skip for host tools 292SKIP_HOSTDIR ?= 293 294NSkipHostDir = ${SKIP_HOSTDIR:N*.host*:S,$,.host*,:N.host*:S,^,${SRCTOP}/,:${M_ListToSkip}} 295 296# things we always skip 297# SKIP_DIRDEPS allows for adding entries on command line. 298SKIP_DIR += .host *.WAIT ${SKIP_DIRDEPS} 299SKIP_DIR.host += ${SKIP_HOSTDIR} 300 301DEP_SKIP_DIR = ${SKIP_DIR} \ 302 ${SKIP_DIR.${DEP_TARGET_SPEC}:U} \ 303 ${SKIP_DIR.${DEP_MACHINE}:U} \ 304 ${SKIP_DIRDEPS.${DEP_MACHINE}:U} 305 306NSkipDir = ${DEP_SKIP_DIR:${M_ListToSkip}} 307 308.if defined(NO_DIRDEPS) || defined(NODIRDEPS) || defined(WITHOUT_DIRDEPS) 309# confine ourselves to the original dir and below. 310DIRDEPS_FILTER += M${_DEP_RELDIR}* 311.elif defined(NO_DIRDEPS_BELOW) 312DIRDEPS_FILTER += M${_DEP_RELDIR} 313.endif 314 315# this is what we run below 316DIRDEP_MAKE?= ${.MAKE} 317 318# we suppress SUBDIR when visiting the leaves 319# we assume sys.mk will set MACHINE_ARCH 320# you can add extras to DIRDEP_USE_ENV 321# if there is no makefile in the target directory, we skip it. 322_DIRDEP_USE: .USE .MAKE 323 @for m in ${.MAKE.MAKEFILE_PREFERENCE}; do \ 324 test -s ${.TARGET:R}/$$m || continue; \ 325 echo "${TRACER}Checking ${.TARGET:R} for ${.TARGET:E} ..."; \ 326 MACHINE_ARCH= NO_SUBDIR=1 ${DIRDEP_USE_ENV} \ 327 TARGET_SPEC=${.TARGET:E} \ 328 MACHINE=${.TARGET:E} \ 329 ${DIRDEP_MAKE} -C ${.TARGET:R} || exit 1; \ 330 break; \ 331 done 332 333.ifdef ALL_MACHINES 334# this is how you limit it to only the machines we have been built for 335# previously. 336.if empty(ONLY_MACHINE_LIST) 337.if !empty(ALL_MACHINE_LIST) 338# ALL_MACHINE_LIST is the list of all legal machines - ignore anything else 339_machine_list != cd ${_CURDIR} && 'ls' -1 ${ALL_MACHINE_LIST:O:u:@m@${.MAKE.DEPENDFILE:T:R}.$m@} 2> /dev/null; echo 340.else 341_machine_list != 'ls' -1 ${_CURDIR}/${.MAKE.DEPENDFILE_PREFIX}.* 2> /dev/null; echo 342.endif 343_only_machines := ${_machine_list:${NIgnoreFiles:UN*.bak}:E:O:u} 344.else 345_only_machines := ${ONLY_MACHINE_LIST} 346.endif 347 348.if empty(_only_machines) 349# we must be boot-strapping 350_only_machines := ${TARGET_MACHINE:U${ALL_MACHINE_LIST:U${DEP_MACHINE}}} 351.endif 352 353.else # ! ALL_MACHINES 354# if ONLY_MACHINE_LIST is set, we are limited to that 355# if TARGET_MACHINE is set - it is really the same as ONLY_MACHINE_LIST 356# otherwise DEP_MACHINE is it - so DEP_MACHINE will match. 357_only_machines := ${ONLY_MACHINE_LIST:U${TARGET_MACHINE:U${DEP_MACHINE}}:M${DEP_MACHINE}} 358.endif 359 360.if !empty(NOT_MACHINE_LIST) 361_only_machines := ${_only_machines:${NOT_MACHINE_LIST:${M_ListToSkip}}} 362.endif 363 364# make sure we have a starting place? 365DIRDEPS ?= ${RELDIR} 366.endif # target 367 368# if repeatedly building the same target, 369# we can avoid the overhead of re-computing the tree dependencies. 370MK_DIRDEPS_CACHE ?= no 371BUILD_DIRDEPS_CACHE ?= no 372BUILD_DIRDEPS ?= yes 373 374.if !defined(NO_DIRDEPS) 375.if ${MK_DIRDEPS_CACHE} == "yes" 376# this is where we will cache all our work 377DIRDEPS_CACHE?= ${_OBJDIR}/dirdeps.cache${.TARGETS:Nall:O:u:ts-:S,/,_,g:S,^,.,:N.} 378 379# just ensure this exists 380build-dirdeps: 381 382M_oneperline = @x@\\${.newline} $$x@ 383 384.if ${BUILD_DIRDEPS_CACHE} == "no" 385.if !target(dirdeps-cached) 386# we do this via sub-make 387BUILD_DIRDEPS = no 388 389dirdeps: dirdeps-cached 390dirdeps-cached: ${DIRDEPS_CACHE} .MAKE 391 @echo "${TRACER}Using ${DIRDEPS_CACHE}" 392 @MAKELEVEL=${.MAKE.LEVEL} ${.MAKE} -C ${_CURDIR} -f ${DIRDEPS_CACHE} \ 393 dirdeps MK_DIRDEPS_CACHE=no BUILD_DIRDEPS=no 394 395# these should generally do 396BUILD_DIRDEPS_MAKEFILE ?= ${MAKEFILE} 397BUILD_DIRDEPS_TARGETS ?= ${.TARGETS} 398 399# we need the .meta file to ensure we update if 400# any of the Makefile.depend* changed. 401# We do not want to compare the command line though. 402${DIRDEPS_CACHE}: .META .NOMETA_CMP 403 +@{ echo '# Autogenerated - do NOT edit!'; echo; \ 404 echo 'BUILD_DIRDEPS=no'; echo; \ 405 echo '.include <dirdeps.mk>'; \ 406 } > ${.TARGET}.new 407 +@MAKELEVEL=${.MAKE.LEVEL} DIRDEPS_CACHE=${DIRDEPS_CACHE} \ 408 DIRDEPS="${DIRDEPS}" \ 409 MAKEFLAGS= ${.MAKE} -C ${_CURDIR} -f ${BUILD_DIRDEPS_MAKEFILE} \ 410 ${BUILD_DIRDEPS_TARGETS} BUILD_DIRDEPS_CACHE=yes \ 411 .MAKE.DEPENDFILE=.none \ 412 ${.MAKEFLAGS:tW:S,-D ,-D,g:tw:M*WITH*} \ 413 3>&1 1>&2 | sed 's,${SRCTOP},$${SRCTOP},g' >> ${.TARGET}.new && \ 414 mv ${.TARGET}.new ${.TARGET} 415 416.endif 417.elif !target(_count_dirdeps) 418# we want to capture the dirdeps count in the cache 419.END: _count_dirdeps 420_count_dirdeps: .NOMETA 421 @echo '.info $${.newline}$${TRACER}Makefiles read: total=${.MAKE.MAKEFILES:[#]} depend=${.MAKE.MAKEFILES:M*depend*:[#]} dirdeps=${.ALLTARGETS:M${SRCTOP}*:O:u:[#]}' >&3 422 423.endif 424.elif !make(dirdeps) && !target(_count_dirdeps) 425beforedirdeps: _count_dirdeps 426_count_dirdeps: .NOMETA 427 @echo "${TRACER}Makefiles read: total=${.MAKE.MAKEFILES:[#]} depend=${.MAKE.MAKEFILES:M*depend*:[#]} dirdeps=${.ALLTARGETS:M${SRCTOP}*:O:u:[#]} seconds=`expr ${now_utc} - ${start_utc}`" 428 429.endif 430.endif 431 432.if ${BUILD_DIRDEPS} == "yes" 433.if ${DEBUG_DIRDEPS:@x@${DEP_RELDIR:M$x}${${DEP_RELDIR}.${DEP_MACHINE}:L:M$x}@} != "" 434_debug_reldir = 1 435.else 436_debug_reldir = 0 437.endif 438.if ${DEBUG_DIRDEPS:@x@${DEP_RELDIR:M$x}${${DEP_RELDIR}.depend:L:M$x}@} != "" 439_debug_search = 1 440.else 441_debug_search = 0 442.endif 443 444# the rest is done repeatedly for every Makefile.depend we read. 445# if we are anything but the original dir we care only about the 446# machine type we were included for.. 447 448.if ${DEP_RELDIR} == "." 449_this_dir := ${SRCTOP} 450.else 451_this_dir := ${SRCTOP}/${DEP_RELDIR} 452.endif 453 454# on rare occasions, there can be a need for extra help 455_dep_hack := ${_this_dir}/${.MAKE.DEPENDFILE_PREFIX}.inc 456.-include "${_dep_hack}" 457 458.if ${DEP_RELDIR} != ${_DEP_RELDIR} || ${DEP_TARGET_SPEC} != ${TARGET_SPEC} 459# this should be all 460_machines := ${DEP_MACHINE} 461.else 462# this is the machine list we actually use below 463_machines := ${_only_machines} 464 465.if defined(HOSTPROG) || ${DEP_MACHINE} == "host" 466# we need to build this guy's dependencies for host as well. 467_machines += host 468.endif 469 470_machines := ${_machines:O:u} 471.endif 472 473.if ${TARGET_SPEC_VARS:[#]} > 1 474# we need to tweak _machines 475_dm := ${DEP_MACHINE} 476# apply the same filtering that we do when qualifying DIRDEPS. 477# M_dep_qual_fixes expects .${MACHINE}* so add (and remove) '.' 478_machines := ${_machines:@DEP_MACHINE@${DEP_TARGET_SPEC}@:S,^,.,:${M_dep_qual_fixes:ts:}:O:u:S,^.,,} 479DEP_MACHINE := ${_dm} 480.endif 481 482# reset each time through 483_build_dirs = 484 485.if ${DEP_RELDIR} == ${_DEP_RELDIR} 486# pickup other machines for this dir if necessary 487.if ${BUILD_AT_LEVEL0:Uyes} == "no" 488_build_dirs += ${_machines:@m@${_CURDIR}.$m@} 489.else 490_build_dirs += ${_machines:N${DEP_TARGET_SPEC}:@m@${_CURDIR}.$m@} 491.if ${DEP_TARGET_SPEC} == ${TARGET_SPEC} 492# pickup local dependencies now 493.if ${MAKE_VERSION} < 20160220 494.-include <.depend> 495.else 496.dinclude <.depend> 497.endif 498.endif 499.endif 500.endif 501 502.if ${_debug_reldir} 503.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: DIRDEPS='${DIRDEPS}' 504.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: _machines='${_machines}' 505.endif 506 507.if !empty(DIRDEPS) 508# these we reset each time through as they can depend on DEP_MACHINE 509DEP_DIRDEPS_FILTER = \ 510 ${DIRDEPS_FILTER.${DEP_TARGET_SPEC}:U} \ 511 ${DIRDEPS_FILTER.${DEP_MACHINE}:U} \ 512 ${DIRDEPS_FILTER:U} 513.if empty(DEP_DIRDEPS_FILTER) 514# something harmless 515DEP_DIRDEPS_FILTER = U 516.endif 517 518# this is what we start with 519__depdirs := ${DIRDEPS:${NSkipDir}:${DEP_DIRDEPS_FILTER:ts:}:C,//+,/,g:O:u:@d@${SRCTOP}/$d@} 520 521# some entries may be qualified with .<machine> 522# the :M*/*/*.* just tries to limit the dirs we check to likely ones. 523# the ${d:E:M*/*} ensures we don't consider junos/usr.sbin/mgd 524__qual_depdirs := ${__depdirs:M*/*/*.*:@d@${exists($d):?:${"${d:E:M*/*}":?:${exists(${d:R}):?$d:}}}@} 525__unqual_depdirs := ${__depdirs:${__qual_depdirs:Uno:${M_ListToSkip}}} 526 527.if ${DEP_RELDIR} == ${_DEP_RELDIR} 528# if it was called out - we likely need it. 529__hostdpadd := ${DPADD:U.:M${HOST_OBJTOP}/*:S,${HOST_OBJTOP}/,,:H:${NSkipDir}:${DIRDEPS_FILTER:ts:}:S,$,.host,:N.*:@d@${SRCTOP}/$d@} 530__qual_depdirs += ${__hostdpadd} 531.endif 532 533.if ${_debug_reldir} 534.info depdirs=${__depdirs} 535.info qualified=${__qual_depdirs} 536.info unqualified=${__unqual_depdirs} 537.endif 538 539# _build_dirs is what we will feed to _DIRDEP_USE 540_build_dirs += \ 541 ${__qual_depdirs:M*.host:${NSkipHostDir}:N.host} \ 542 ${__qual_depdirs:N*.host} \ 543 ${_machines:Mhost*:@m@${__unqual_depdirs:@d@$d.$m@}@:${NSkipHostDir}:N.host} \ 544 ${_machines:Nhost*:@m@${__unqual_depdirs:@d@$d.$m@}@} 545 546# qualify everything now 547_build_dirs := ${_build_dirs:${M_dep_qual_fixes:ts:}:O:u} 548 549_build_all_dirs += ${_build_dirs} 550_build_all_dirs := ${_build_all_dirs:O:u} 551 552.endif # empty DIRDEPS 553 554# Normally if doing make -V something, 555# we do not want to waste time chasing DIRDEPS 556# but if we want to count the number of Makefile.depend* read, we do. 557.if ${.MAKEFLAGS:M-V${_V_READ_DIRDEPS}} == "" 558.if !empty(_build_all_dirs) 559.if ${BUILD_DIRDEPS_CACHE} == "yes" 560x!= { echo; echo '\# ${DEP_RELDIR}.${DEP_TARGET_SPEC}'; \ 561 echo 'dirdeps: ${_build_all_dirs:${M_oneperline}}'; echo; } >&3; echo 562x!= { ${_build_all_dirs:@x@${target($x):?:echo '$x: _DIRDEP_USE';}@} echo; } >&3; echo 563.else 564# this makes it all happen 565dirdeps: ${_build_all_dirs} 566.endif 567${_build_all_dirs}: _DIRDEP_USE 568 569.if ${_debug_reldir} 570.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: needs: ${_build_dirs} 571.endif 572 573# this builds the dependency graph 574.for m in ${_machines} 575# it would be nice to do :N${.TARGET} 576.if !empty(__qual_depdirs) 577.for q in ${__qual_depdirs:${M_dep_qual_fixes:ts:}:E:O:u:N$m} 578.if ${_debug_reldir} || ${DEBUG_DIRDEPS:@x@${${DEP_RELDIR}.$m:L:M$x}${${DEP_RELDIR}.$q:L:M$x}@} != "" 579.info ${DEP_RELDIR}.$m: graph: ${_build_dirs:M*.$q} 580.endif 581.if ${BUILD_DIRDEPS_CACHE} == "yes" 582x!= { echo; echo '${_this_dir}.$m: ${_build_dirs:M*.$q:${M_oneperline}}'; echo; } >&3; echo 583.else 584${_this_dir}.$m: ${_build_dirs:M*.$q} 585.endif 586.endfor 587.endif 588.if ${_debug_reldir} 589.info ${DEP_RELDIR}.$m: graph: ${_build_dirs:M*.$m:N${_this_dir}.$m} 590.endif 591.if ${BUILD_DIRDEPS_CACHE} == "yes" 592x!= { echo; echo '${_this_dir}.$m: ${_build_dirs:M*.$m:N${_this_dir}.$m:${M_oneperline}}'; echo; } >&3; echo 593.else 594${_this_dir}.$m: ${_build_dirs:M*.$m:N${_this_dir}.$m} 595.endif 596.endfor 597 598.endif 599 600# Now find more dependencies - and recurse. 601.for d in ${_build_all_dirs} 602.if !target(_dirdeps_checked.$d) 603# once only 604_dirdeps_checked.$d: 605.if ${_debug_search} 606.info checking $d 607.endif 608# Note: _build_all_dirs is fully qualifed so d:R is always the directory 609.if exists(${d:R}) 610# Warning: there is an assumption here that MACHINE is always 611# the first entry in TARGET_SPEC_VARS. 612# If TARGET_SPEC and MACHINE are insufficient, you have a problem. 613_m := ${.MAKE.DEPENDFILE_PREFERENCE:T:S;${TARGET_SPEC}$;${d:E};:S;${MACHINE};${d:E:C/,.*//};:@m@${exists(${d:R}/$m):?${d:R}/$m:}@:[1]} 614.if !empty(_m) 615# M_dep_qual_fixes isn't geared to Makefile.depend 616_qm := ${_m:C;(\.depend)$;\1.${d:E};:${M_dep_qual_fixes:ts:}} 617.if ${_debug_search} 618.info Looking for ${_qm} 619.endif 620# we pass _DEP_TARGET_SPEC to tell the next step what we want 621_DEP_TARGET_SPEC := ${d:E} 622# some makefiles may still look at this 623_DEP_MACHINE := ${d:E:C/,.*//} 624# set this "just in case" 625# we can skip :tA since we computed the path above 626DEP_RELDIR := ${_m:H:S,${SRCTOP}/,,} 627# and reset this 628DIRDEPS = 629.if ${_debug_reldir} && ${_qm} != ${_m} 630.info loading ${_m} for ${d:E} 631.endif 632.include <${_m}> 633.endif 634.endif 635.endif 636.endfor 637 638.endif # -V 639.endif # BUILD_DIRDEPS 640 641.elif ${.MAKE.LEVEL} > 42 642.error You should have stopped recursing by now. 643.else 644# we are building something 645DEP_RELDIR := ${RELDIR} 646_DEP_RELDIR := ${RELDIR} 647# pickup local dependencies 648.if ${MAKE_VERSION} < 20160220 649.-include <.depend> 650.else 651.dinclude <.depend> 652.endif 653.endif 654 655# bootstrapping new dependencies made easy? 656.if !target(bootstrap) && (make(bootstrap) || \ 657 make(bootstrap-this) || \ 658 make(bootstrap-recurse) || \ 659 make(bootstrap-empty)) 660 661.if exists(${.CURDIR}/${.MAKE.DEPENDFILE:T}) 662# stop here 663${.TARGETS:Mboot*}: 664.elif !make(bootstrap-empty) 665# find a Makefile.depend to use as _src 666_src != cd ${.CURDIR} && for m in ${.MAKE.DEPENDFILE_PREFERENCE:T:S,${MACHINE},*,}; do test -s $$m || continue; echo $$m; break; done; echo 667.if empty(_src) 668.error cannot find any of ${.MAKE.DEPENDFILE_PREFERENCE:T}${.newline}Use: bootstrap-empty 669.endif 670 671_src?= ${.MAKE.DEPENDFILE:T} 672 673# just create Makefile.depend* for this dir 674bootstrap-this: .NOTMAIN 675 @echo Bootstrapping ${RELDIR}/${.MAKE.DEPENDFILE:T} from ${_src:T} 676 (cd ${.CURDIR} && sed 's,${_src:E},${MACHINE},g' ${_src} > ${.MAKE.DEPENDFILE:T}) 677 678# create Makefile.depend* for this dir and its dependencies 679bootstrap: bootstrap-recurse 680bootstrap-recurse: bootstrap-this 681 682_mf := ${.PARSEFILE} 683bootstrap-recurse: .NOTMAIN .MAKE 684 @cd ${SRCTOP} && \ 685 for d in `cd ${RELDIR} && ${.MAKE} -B -f ${"${.MAKEFLAGS:M-n}":?${_src}:${.MAKE.DEPENDFILE:T}} -V DIRDEPS`; do \ 686 test -d $$d || d=$${d%.*}; \ 687 test -d $$d || continue; \ 688 echo "Checking $$d for bootstrap ..."; \ 689 (cd $$d && ${.MAKE} -f ${_mf} bootstrap-recurse); \ 690 done 691 692.endif 693 694# create an empty Makefile.depend* to get the ball rolling. 695bootstrap-empty: .NOTMAIN .NOMETA 696 @echo Creating empty ${RELDIR}/${.MAKE.DEPENDFILE:T}; \ 697 echo You need to build ${RELDIR} to correctly populate it. 698 @{ echo DIRDEPS=; echo ".include <dirdeps.mk>"; } > ${.CURDIR}/${.MAKE.DEPENDFILE:T} 699 700.endif 701