1# $Id: dirdeps.mk,v 1.89 2017/05/17 17:41:47 sjg Exp $ 2 3# Copyright (c) 2010-2013, Juniper Networks, Inc. 4# All rights reserved. 5# 6# Redistribution and use in source and binary forms, with or without 7# modification, are permitted provided that the following conditions 8# are met: 9# 1. Redistributions of source code must retain the above copyright 10# notice, this list of conditions and the following disclaimer. 11# 2. Redistributions in binary form must reproduce the above copyright 12# notice, this list of conditions and the following disclaimer in the 13# documentation and/or other materials provided with the distribution. 14# 15# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 16# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 17# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 18# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 19# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 20# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 21# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 25# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 27# Much of the complexity here is for supporting cross-building. 28# If a tree does not support that, simply using plain Makefile.depend 29# should provide sufficient clue. 30# Otherwise the recommendation is to use Makefile.depend.${MACHINE} 31# as expected below. 32 33# Note: this file gets multiply included. 34# This is what we do with DIRDEPS 35 36# DIRDEPS: 37# This is a list of directories - relative to SRCTOP, it is 38# normally only of interest to .MAKE.LEVEL 0. 39# In some cases the entry may be qualified with a .<machine> 40# or .<target_spec> suffix (see TARGET_SPEC_VARS below), 41# for example to force building something for the pseudo 42# machines "host" or "common" regardless of current ${MACHINE}. 43# 44# All unqualified entries end up being qualified with .${TARGET_SPEC} 45# and partially qualified (if TARGET_SPEC_VARS has multiple 46# entries) are also expanded to a full .<target_spec>. 47# The _DIRDEP_USE target uses the suffix to set TARGET_SPEC 48# correctly when visiting each entry. 49# 50# The fully qualified directory entries are used to construct a 51# dependency graph that will drive the build later. 52# 53# Also, for each fully qualified directory target, we will search 54# using ${.MAKE.DEPENDFILE_PREFERENCE} to find additional 55# dependencies. We use Makefile.depend (default value for 56# .MAKE.DEPENDFILE_PREFIX) to refer to these makefiles to 57# distinguish them from others. 58# 59# Before each Makefile.depend file is read, we set 60# DEP_RELDIR to be the RELDIR (path relative to SRCTOP) for 61# its directory, and DEP_MACHINE etc according to the .<target_spec> 62# represented by the suffix of the corresponding target. 63# 64# Since each Makefile.depend file includes dirdeps.mk, this 65# processing is recursive and results in .MAKE.LEVEL 0 learning the 66# dependencies of the tree wrt the initial directory (_DEP_RELDIR). 67# 68# BUILD_AT_LEVEL0 69# Indicates whether .MAKE.LEVEL 0 builds anything: 70# if "no" sub-makes are used to build everything, 71# if "yes" sub-makes are only used to build for other machines. 72# It is best to use "no", but this can require fixing some 73# makefiles to not do anything at .MAKE.LEVEL 0. 74# 75# TARGET_SPEC_VARS 76# The default value is just MACHINE, and for most environments 77# this is sufficient. The _DIRDEP_USE target actually sets 78# both MACHINE and TARGET_SPEC to the suffix of the current 79# target so that in the general case TARGET_SPEC can be ignored. 80# 81# If more than MACHINE is needed then sys.mk needs to decompose 82# TARGET_SPEC and set the relevant variables accordingly. 83# It is important that MACHINE be included in and actually be 84# the first member of TARGET_SPEC_VARS. This allows other 85# variables to be considered optional, and some of the treatment 86# below relies on MACHINE being the first entry. 87# Note: TARGET_SPEC cannot contain any '.'s so the target 88# triple used by compiler folk won't work (directly anyway). 89# 90# For example: 91# 92# # Always list MACHINE first, 93# # other variables might be optional. 94# TARGET_SPEC_VARS = MACHINE TARGET_OS 95# .if ${TARGET_SPEC:Uno:M*,*} != "" 96# _tspec := ${TARGET_SPEC:S/,/ /g} 97# MACHINE := ${_tspec:[1]} 98# TARGET_OS := ${_tspec:[2]} 99# # etc. 100# # We need to stop that TARGET_SPEC affecting any submakes 101# # and deal with MACHINE=${TARGET_SPEC} in the environment. 102# TARGET_SPEC = 103# # export but do not track 104# .export-env TARGET_SPEC 105# .export ${TARGET_SPEC_VARS} 106# .for v in ${TARGET_SPEC_VARS:O:u} 107# .if empty($v) 108# .undef $v 109# .endif 110# .endfor 111# .endif 112# # make sure we know what TARGET_SPEC is 113# # as we may need it to find Makefile.depend* 114# TARGET_SPEC = ${TARGET_SPEC_VARS:@v@${$v:U}@:ts,} 115# 116# The following variables can influence the initial DIRDEPS 117# computation with regard to the TARGET_SPECs that will be 118# built. 119# Most should also be considered by init.mk 120# 121# ONLY_TARGET_SPEC_LIST 122# Defines a list of TARGET_SPECs for which the current 123# directory can be built. 124# If ALL_MACHINES is defined, we build for all the 125# TARGET_SPECs listed. 126# 127# ONLY_MACHINE_LIST 128# As for ONLY_TARGET_SPEC_LIST but only specifies 129# MACHINEs. 130# 131# NOT_TARGET_SPEC_LIST 132# A list of TARGET_SPECs for which the current 133# directory should not be built. 134# 135# NOT_MACHINE_LIST 136# A list of MACHINEs the current directory should not be 137# built for. 138# 139 140.if !target(bootstrap) && (make(bootstrap) || \ 141 make(bootstrap-this) || \ 142 make(bootstrap-recurse) || \ 143 make(bootstrap-empty)) 144# disable most of below 145.MAKE.LEVEL = 1 146.endif 147 148# touch this at your peril 149_DIRDEP_USE_LEVEL?= 0 150.if ${.MAKE.LEVEL} == ${_DIRDEP_USE_LEVEL} 151# only the first instance is interested in all this 152 153.if !target(_DIRDEP_USE) 154 155# do some setup we only need once 156_CURDIR ?= ${.CURDIR} 157_OBJDIR ?= ${.OBJDIR} 158 159now_utc = ${%s:L:gmtime} 160.if !defined(start_utc) 161start_utc := ${now_utc} 162.endif 163 164.if ${MAKEFILE:T} == ${.PARSEFILE} && empty(DIRDEPS) && ${.TARGETS:Uall:M*/*} != "" 165# This little trick let's us do 166# 167# mk -f dirdeps.mk some/dir.${TARGET_SPEC} 168# 169all: 170${.TARGETS:Nall}: all 171DIRDEPS := ${.TARGETS:M*[/.]*} 172# so that -DNO_DIRDEPS works 173DEP_RELDIR := ${DIRDEPS:[1]:R} 174# this will become DEP_MACHINE below 175TARGET_MACHINE := ${DIRDEPS:[1]:E:C/,.*//} 176.if ${TARGET_MACHINE:N*/*} == "" 177TARGET_MACHINE := ${MACHINE} 178.endif 179# disable DIRDEPS_CACHE as it does not like this trick 180MK_DIRDEPS_CACHE = no 181.endif 182 183# make sure we get the behavior we expect 184.MAKE.SAVE_DOLLARS = no 185 186# make sure these are empty to start with 187_DEP_TARGET_SPEC = 188 189# If TARGET_SPEC_VARS is other than just MACHINE 190# it should be set by sys.mk or similar by now. 191# TARGET_SPEC must not contain any '.'s. 192TARGET_SPEC_VARS ?= MACHINE 193# this is what we started with 194TARGET_SPEC = ${TARGET_SPEC_VARS:@v@${$v:U}@:ts,} 195# this is what we mostly use below 196DEP_TARGET_SPEC = ${TARGET_SPEC_VARS:S,^,DEP_,:@v@${$v:U}@:ts,} 197# make sure we have defaults 198.for v in ${TARGET_SPEC_VARS} 199DEP_$v ?= ${$v} 200.endfor 201 202.if ${TARGET_SPEC_VARS:[#]} > 1 203# Ok, this gets more complex (putting it mildly). 204# In order to stay sane, we need to ensure that all the build_dirs 205# we compute below are fully qualified wrt DEP_TARGET_SPEC. 206# The makefiles may only partially specify (eg. MACHINE only), 207# so we need to construct a set of modifiers to fill in the gaps. 208.if ${MAKE_VERSION} >= 20170130 209_tspec_x := ${TARGET_SPEC_VARS:range} 210.elif ${TARGET_SPEC_VARS:[#]} > 10 211# seriously? better have jot(1) or equivalent to produce suitable sequence 212_tspec_x := ${${JOT:Ujot} ${TARGET_SPEC_VARS:[#]}:L:sh} 213.else 214# we can provide the sequence ourselves 215_tspec_x := ${1 2 3 4 5 6 7 8 9 10:L:[1..${TARGET_SPEC_VARS:[#]}]} 216.endif 217# this handles unqualified entries 218M_dep_qual_fixes = C;(/[^/.,]+)$$;\1.$${DEP_TARGET_SPEC}; 219# there needs to be at least one item missing for these to make sense 220.for i in ${_tspec_x:[2..-1]} 221_tspec_m$i := ${TARGET_SPEC_VARS:[2..$i]:@w@[^,]+@:ts,} 222_tspec_a$i := ,${TARGET_SPEC_VARS:[$i..-1]:@v@$$$${DEP_$v}@:ts,} 223M_dep_qual_fixes += C;(\.${_tspec_m$i})$$;\1${_tspec_a$i}; 224.endfor 225.else 226# A harmless? default. 227M_dep_qual_fixes = U 228.endif 229 230.if !defined(.MAKE.DEPENDFILE_PREFERENCE) 231# .MAKE.DEPENDFILE_PREFERENCE makes the logic below neater? 232# you really want this set by sys.mk or similar 233.MAKE.DEPENDFILE_PREFERENCE = ${_CURDIR}/${.MAKE.DEPENDFILE:T} 234.if ${.MAKE.DEPENDFILE:E} == "${TARGET_SPEC}" 235.if ${TARGET_SPEC} != ${MACHINE} 236.MAKE.DEPENDFILE_PREFERENCE += ${_CURDIR}/${.MAKE.DEPENDFILE:T:R}.$${MACHINE} 237.endif 238.MAKE.DEPENDFILE_PREFERENCE += ${_CURDIR}/${.MAKE.DEPENDFILE:T:R} 239.endif 240.endif 241 242_default_dependfile := ${.MAKE.DEPENDFILE_PREFERENCE:[1]:T} 243_machine_dependfiles := ${.MAKE.DEPENDFILE_PREFERENCE:T:M*${MACHINE}*} 244 245# for machine specific dependfiles we require ${MACHINE} to be at the end 246# also for the sake of sanity we require a common prefix 247.if !defined(.MAKE.DEPENDFILE_PREFIX) 248# knowing .MAKE.DEPENDFILE_PREFIX helps 249.if !empty(_machine_dependfiles) 250.MAKE.DEPENDFILE_PREFIX := ${_machine_dependfiles:[1]:T:R} 251.else 252.MAKE.DEPENDFILE_PREFIX := ${_default_dependfile:T} 253.endif 254.endif 255 256 257# this is how we identify non-machine specific dependfiles 258N_notmachine := ${.MAKE.DEPENDFILE_PREFERENCE:E:N*${MACHINE}*:${M_ListToSkip}} 259 260.endif # !target(_DIRDEP_USE) 261 262# First off, we want to know what ${MACHINE} to build for. 263# This can be complicated if we are using a mixture of ${MACHINE} specific 264# and non-specific Makefile.depend* 265 266# if we were included recursively _DEP_TARGET_SPEC should be valid. 267.if empty(_DEP_TARGET_SPEC) 268# we may or may not have included a dependfile yet 269.if defined(.INCLUDEDFROMFILE) 270_last_dependfile := ${.INCLUDEDFROMFILE:M${.MAKE.DEPENDFILE_PREFIX}*} 271.else 272_last_dependfile := ${.MAKE.MAKEFILES:M*/${.MAKE.DEPENDFILE_PREFIX}*:[-1]} 273.endif 274.if ${_debug_reldir:U0} 275.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: _last_dependfile='${_last_dependfile}' 276.endif 277 278.if empty(_last_dependfile) || ${_last_dependfile:E:${N_notmachine}} == "" 279# this is all we have to work with 280DEP_MACHINE = ${TARGET_MACHINE:U${MACHINE}} 281_DEP_TARGET_SPEC := ${DEP_TARGET_SPEC} 282.else 283_DEP_TARGET_SPEC = ${_last_dependfile:${M_dep_qual_fixes:ts:}:E} 284.endif 285.if !empty(_last_dependfile) 286# record that we've read dependfile for this 287_dirdeps_checked.${_CURDIR}.${TARGET_SPEC}: 288.endif 289.endif 290 291# by now _DEP_TARGET_SPEC should be set, parse it. 292.if ${TARGET_SPEC_VARS:[#]} > 1 293# we need to parse DEP_MACHINE may or may not contain more info 294_tspec := ${_DEP_TARGET_SPEC:S/,/ /g} 295.for i in ${_tspec_x} 296DEP_${TARGET_SPEC_VARS:[$i]} := ${_tspec:[$i]} 297.endfor 298.for v in ${TARGET_SPEC_VARS:O:u} 299.if empty(DEP_$v) 300.undef DEP_$v 301.endif 302.endfor 303.else 304DEP_MACHINE := ${_DEP_TARGET_SPEC} 305.endif 306 307# reset each time through 308_build_all_dirs = 309 310# the first time we are included the _DIRDEP_USE target will not be defined 311# we can use this as a clue to do initialization and other one time things. 312.if !target(_DIRDEP_USE) 313# make sure this target exists 314dirdeps: beforedirdeps .WAIT 315beforedirdeps: 316 317# We normally expect to be included by Makefile.depend.* 318# which sets the DEP_* macros below. 319DEP_RELDIR ?= ${RELDIR} 320 321# this can cause lots of output! 322# set to a set of glob expressions that might match RELDIR 323DEBUG_DIRDEPS ?= no 324 325# remember the initial value of DEP_RELDIR - we test for it below. 326_DEP_RELDIR := ${DEP_RELDIR} 327 328.endif 329 330# DIRDEPS_CACHE can be very handy for debugging. 331# Also if repeatedly building the same target, 332# we can avoid the overhead of re-computing the tree dependencies. 333MK_DIRDEPS_CACHE ?= no 334BUILD_DIRDEPS_CACHE ?= no 335BUILD_DIRDEPS ?= yes 336 337.if ${MK_DIRDEPS_CACHE} == "yes" 338# this is where we will cache all our work 339DIRDEPS_CACHE ?= ${_OBJDIR:tA}/dirdeps.cache${.TARGETS:Nall:O:u:ts-:S,/,_,g:S,^,.,:N.} 340.endif 341 342# pickup customizations 343# as below you can use !target(_DIRDEP_USE) to protect things 344# which should only be done once. 345.-include <local.dirdeps.mk> 346 347.if !target(_DIRDEP_USE) 348# things we skip for host tools 349SKIP_HOSTDIR ?= 350 351NSkipHostDir = ${SKIP_HOSTDIR:N*.host*:S,$,.host*,:N.host*:S,^,${SRCTOP}/,:${M_ListToSkip}} 352 353# things we always skip 354# SKIP_DIRDEPS allows for adding entries on command line. 355SKIP_DIR += .host *.WAIT ${SKIP_DIRDEPS} 356SKIP_DIR.host += ${SKIP_HOSTDIR} 357 358DEP_SKIP_DIR = ${SKIP_DIR} \ 359 ${SKIP_DIR.${DEP_TARGET_SPEC}:U} \ 360 ${TARGET_SPEC_VARS:@v@${SKIP_DIR.${DEP_$v}:U}@} \ 361 ${SKIP_DIRDEPS.${DEP_TARGET_SPEC}:U} \ 362 ${TARGET_SPEC_VARS:@v@${SKIP_DIRDEPS.${DEP_$v}:U}@} 363 364 365NSkipDir = ${DEP_SKIP_DIR:${M_ListToSkip}} 366 367.if defined(NODIRDEPS) || defined(WITHOUT_DIRDEPS) 368NO_DIRDEPS = 369.elif defined(WITHOUT_DIRDEPS_BELOW) 370NO_DIRDEPS_BELOW = 371.endif 372 373.if defined(NO_DIRDEPS) 374# confine ourselves to the original dir and below. 375DIRDEPS_FILTER += M${_DEP_RELDIR}* 376.elif defined(NO_DIRDEPS_BELOW) 377DIRDEPS_FILTER += M${_DEP_RELDIR} 378.endif 379 380# this is what we run below 381DIRDEP_MAKE?= ${.MAKE} 382 383# we suppress SUBDIR when visiting the leaves 384# we assume sys.mk will set MACHINE_ARCH 385# you can add extras to DIRDEP_USE_ENV 386# if there is no makefile in the target directory, we skip it. 387_DIRDEP_USE: .USE .MAKE 388 @for m in ${.MAKE.MAKEFILE_PREFERENCE}; do \ 389 test -s ${.TARGET:R}/$$m || continue; \ 390 echo "${TRACER}Checking ${.TARGET:R} for ${.TARGET:E} ..."; \ 391 MACHINE_ARCH= NO_SUBDIR=1 ${DIRDEP_USE_ENV} \ 392 TARGET_SPEC=${.TARGET:E} \ 393 MACHINE=${.TARGET:E} \ 394 ${DIRDEP_MAKE} -C ${.TARGET:R} || exit 1; \ 395 break; \ 396 done 397 398.ifdef ALL_MACHINES 399# this is how you limit it to only the machines we have been built for 400# previously. 401.if empty(ONLY_TARGET_SPEC_LIST) && empty(ONLY_MACHINE_LIST) 402.if !empty(ALL_MACHINE_LIST) 403# ALL_MACHINE_LIST is the list of all legal machines - ignore anything else 404_machine_list != cd ${_CURDIR} && 'ls' -1 ${ALL_MACHINE_LIST:O:u:@m@${.MAKE.DEPENDFILE:T:R}.$m@} 2> /dev/null; echo 405.else 406_machine_list != 'ls' -1 ${_CURDIR}/${.MAKE.DEPENDFILE_PREFIX}.* 2> /dev/null; echo 407.endif 408_only_machines := ${_machine_list:${NIgnoreFiles:UN*.bak}:E:O:u} 409.else 410_only_machines := ${ONLY_TARGET_SPEC_LIST:U} ${ONLY_MACHINE_LIST:U} 411.endif 412 413.if empty(_only_machines) 414# we must be boot-strapping 415_only_machines := ${TARGET_MACHINE:U${ALL_MACHINE_LIST:U${DEP_MACHINE}}} 416.endif 417 418.else # ! ALL_MACHINES 419# if ONLY_TARGET_SPEC_LIST or ONLY_MACHINE_LIST is set, we are limited to that. 420# Note that ONLY_TARGET_SPEC_LIST should be fully qualified. 421# if TARGET_MACHINE is set - it is really the same as ONLY_MACHINE_LIST 422# otherwise DEP_MACHINE is it - so DEP_MACHINE will match. 423_only_machines := ${ONLY_TARGET_SPEC_LIST:U:M${DEP_MACHINE},*} 424.if empty(_only_machines) 425_only_machines := ${ONLY_MACHINE_LIST:U${TARGET_MACHINE:U${DEP_MACHINE}}:M${DEP_MACHINE}} 426.endif 427.endif 428 429.if !empty(NOT_MACHINE_LIST) 430_only_machines := ${_only_machines:${NOT_MACHINE_LIST:${M_ListToSkip}}} 431.endif 432.if !empty(NOT_TARGET_SPEC_LIST) 433# we must first qualify 434_dm := ${DEP_MACHINE} 435_only_machines := ${_only_machines:M*,*} ${_only_machines:N*,*:@DEP_MACHINE@${DEP_TARGET_SPEC}@:S,^,.,:${M_dep_qual_fixes:ts:}:O:u:S,^.,,} 436DEP_MACHINE := ${_dm} 437_only_machines := ${_only_machines:${NOT_TARGET_SPEC_LIST:${M_ListToSkip}}} 438.endif 439# clean up 440_only_machines := ${_only_machines:O:u} 441 442# make sure we have a starting place? 443DIRDEPS ?= ${RELDIR} 444.endif # target 445 446.if !defined(NO_DIRDEPS) && !defined(NO_DIRDEPS_BELOW) 447.if ${MK_DIRDEPS_CACHE} == "yes" 448 449# just ensure this exists 450build-dirdeps: 451 452M_oneperline = @x@\\${.newline} $$x@ 453 454.if ${BUILD_DIRDEPS_CACHE} == "no" 455.if !target(dirdeps-cached) 456# we do this via sub-make 457BUILD_DIRDEPS = no 458 459# ignore anything but these 460.MAKE.META.IGNORE_FILTER = M*/${.MAKE.DEPENDFILE_PREFIX}* 461 462dirdeps: dirdeps-cached 463dirdeps-cached: ${DIRDEPS_CACHE} .MAKE 464 @echo "${TRACER}Using ${DIRDEPS_CACHE}" 465 @MAKELEVEL=${.MAKE.LEVEL} ${.MAKE} -C ${_CURDIR} -f ${DIRDEPS_CACHE} \ 466 dirdeps MK_DIRDEPS_CACHE=no BUILD_DIRDEPS=no 467 468# these should generally do 469BUILD_DIRDEPS_MAKEFILE ?= ${MAKEFILE} 470BUILD_DIRDEPS_TARGETS ?= ${.TARGETS} 471 472# we need the .meta file to ensure we update if 473# any of the Makefile.depend* changed. 474# We do not want to compare the command line though. 475${DIRDEPS_CACHE}: .META .NOMETA_CMP 476 +@{ echo '# Autogenerated - do NOT edit!'; echo; \ 477 echo 'BUILD_DIRDEPS=no'; echo; \ 478 echo '.include <dirdeps.mk>'; \ 479 } > ${.TARGET}.new 480 +@MAKELEVEL=${.MAKE.LEVEL} DIRDEPS_CACHE=${DIRDEPS_CACHE} \ 481 DIRDEPS="${DIRDEPS}" \ 482 TARGET_SPEC=${TARGET_SPEC} \ 483 MAKEFLAGS= ${.MAKE} -C ${_CURDIR} -f ${BUILD_DIRDEPS_MAKEFILE} \ 484 ${BUILD_DIRDEPS_TARGETS} BUILD_DIRDEPS_CACHE=yes \ 485 .MAKE.DEPENDFILE=.none \ 486 ${.MAKEFLAGS:tW:S,-D ,-D,g:tw:M*WITH*} \ 487 3>&1 1>&2 | sed 's,${SRCTOP},$${SRCTOP},g' >> ${.TARGET}.new && \ 488 mv ${.TARGET}.new ${.TARGET} 489 490.endif 491.elif !target(_count_dirdeps) 492# we want to capture the dirdeps count in the cache 493.END: _count_dirdeps 494_count_dirdeps: .NOMETA 495 @echo '.info $${.newline}$${TRACER}Makefiles read: total=${.MAKE.MAKEFILES:[#]} depend=${.MAKE.MAKEFILES:M*depend*:[#]} dirdeps=${.ALLTARGETS:M${SRCTOP}*:O:u:[#]}' >&3 496 497.endif 498.elif !make(dirdeps) && !target(_count_dirdeps) 499beforedirdeps: _count_dirdeps 500_count_dirdeps: .NOMETA 501 @echo "${TRACER}Makefiles read: total=${.MAKE.MAKEFILES:[#]} depend=${.MAKE.MAKEFILES:M*depend*:[#]} dirdeps=${.ALLTARGETS:M${SRCTOP}*:O:u:[#]} seconds=`expr ${now_utc} - ${start_utc}`" 502 503.endif 504.endif 505 506.if ${BUILD_DIRDEPS} == "yes" 507.if ${DEBUG_DIRDEPS:@x@${DEP_RELDIR:M$x}${${DEP_RELDIR}.${DEP_MACHINE}:L:M$x}@} != "" 508_debug_reldir = 1 509.else 510_debug_reldir = 0 511.endif 512.if ${DEBUG_DIRDEPS:@x@${DEP_RELDIR:M$x}${${DEP_RELDIR}.depend:L:M$x}@} != "" 513_debug_search = 1 514.else 515_debug_search = 0 516.endif 517 518# the rest is done repeatedly for every Makefile.depend we read. 519# if we are anything but the original dir we care only about the 520# machine type we were included for.. 521 522.if ${DEP_RELDIR} == "." 523_this_dir := ${SRCTOP} 524.else 525_this_dir := ${SRCTOP}/${DEP_RELDIR} 526.endif 527 528# on rare occasions, there can be a need for extra help 529_dep_hack := ${_this_dir}/${.MAKE.DEPENDFILE_PREFIX}.inc 530.-include <${_dep_hack}> 531 532.if ${DEP_RELDIR} != ${_DEP_RELDIR} || ${DEP_TARGET_SPEC} != ${TARGET_SPEC} 533# this should be all 534_machines := ${DEP_MACHINE} 535.else 536# this is the machine list we actually use below 537_machines := ${_only_machines} 538 539.if defined(HOSTPROG) || ${DEP_MACHINE} == "host" 540# we need to build this guy's dependencies for host as well. 541_machines += host 542.endif 543 544_machines := ${_machines:O:u} 545.endif 546 547.if ${TARGET_SPEC_VARS:[#]} > 1 548# we need to tweak _machines 549_dm := ${DEP_MACHINE} 550# apply the same filtering that we do when qualifying DIRDEPS. 551# M_dep_qual_fixes expects .${MACHINE}* so add (and remove) '.' 552# Again we expect that any already qualified machines are fully qualified. 553_machines := ${_machines:M*,*} ${_machines:N*,*:@DEP_MACHINE@${DEP_TARGET_SPEC}@:S,^,.,:${M_dep_qual_fixes:ts:}:O:u:S,^.,,} 554DEP_MACHINE := ${_dm} 555_machines := ${_machines:O:u} 556.endif 557 558# reset each time through 559_build_dirs = 560 561.if ${DEP_RELDIR} == ${_DEP_RELDIR} 562# pickup other machines for this dir if necessary 563.if ${BUILD_AT_LEVEL0:Uyes} == "no" 564_build_dirs += ${_machines:@m@${_CURDIR}.$m@} 565.else 566_build_dirs += ${_machines:N${DEP_TARGET_SPEC}:@m@${_CURDIR}.$m@} 567.if ${DEP_TARGET_SPEC} == ${TARGET_SPEC} 568# pickup local dependencies now 569.if ${MAKE_VERSION} < 20160220 570.-include <.depend> 571.else 572.dinclude <.depend> 573.endif 574.endif 575.endif 576.endif 577 578.if ${_debug_reldir} 579.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: DIRDEPS='${DIRDEPS}' 580.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: _machines='${_machines}' 581.endif 582 583.if !empty(DIRDEPS) 584# these we reset each time through as they can depend on DEP_MACHINE 585DEP_DIRDEPS_FILTER = \ 586 ${DIRDEPS_FILTER.${DEP_TARGET_SPEC}:U} \ 587 ${TARGET_SPEC_VARS:@v@${DIRDEPS_FILTER.${DEP_$v}:U}@} \ 588 ${DIRDEPS_FILTER:U} 589.if empty(DEP_DIRDEPS_FILTER) 590# something harmless 591DEP_DIRDEPS_FILTER = U 592.endif 593 594# this is what we start with 595__depdirs := ${DIRDEPS:${NSkipDir}:${DEP_DIRDEPS_FILTER:ts:}:C,//+,/,g:O:u:@d@${SRCTOP}/$d@} 596 597# some entries may be qualified with .<machine> 598# the :M*/*/*.* just tries to limit the dirs we check to likely ones. 599# the ${d:E:M*/*} ensures we don't consider junos/usr.sbin/mgd 600__qual_depdirs := ${__depdirs:M*/*/*.*:@d@${exists($d):?:${"${d:E:M*/*}":?:${exists(${d:R}):?$d:}}}@} 601__unqual_depdirs := ${__depdirs:${__qual_depdirs:Uno:${M_ListToSkip}}} 602 603.if ${DEP_RELDIR} == ${_DEP_RELDIR} 604# if it was called out - we likely need it. 605__hostdpadd := ${DPADD:U.:M${HOST_OBJTOP}/*:S,${HOST_OBJTOP}/,,:H:${NSkipDir}:${DIRDEPS_FILTER:ts:}:S,$,.host,:N.*:@d@${SRCTOP}/$d@} 606__qual_depdirs += ${__hostdpadd} 607.endif 608 609.if ${_debug_reldir} 610.info depdirs=${__depdirs} 611.info qualified=${__qual_depdirs} 612.info unqualified=${__unqual_depdirs} 613.endif 614 615# _build_dirs is what we will feed to _DIRDEP_USE 616_build_dirs += \ 617 ${__qual_depdirs:M*.host:${NSkipHostDir}:N.host} \ 618 ${__qual_depdirs:N*.host} \ 619 ${_machines:Mhost*:@m@${__unqual_depdirs:@d@$d.$m@}@:${NSkipHostDir}:N.host} \ 620 ${_machines:Nhost*:@m@${__unqual_depdirs:@d@$d.$m@}@} 621 622# qualify everything now 623_build_dirs := ${_build_dirs:${M_dep_qual_fixes:ts:}:O:u} 624 625.endif # empty DIRDEPS 626 627_build_all_dirs += ${_build_dirs} 628_build_all_dirs := ${_build_all_dirs:O:u} 629 630# Normally if doing make -V something, 631# we do not want to waste time chasing DIRDEPS 632# but if we want to count the number of Makefile.depend* read, we do. 633.if ${.MAKEFLAGS:M-V${_V_READ_DIRDEPS}} == "" 634.if !empty(_build_all_dirs) 635.if ${BUILD_DIRDEPS_CACHE} == "yes" 636x!= { echo; echo '\# ${DEP_RELDIR}.${DEP_TARGET_SPEC}'; \ 637 echo 'dirdeps: ${_build_all_dirs:${M_oneperline}}'; echo; } >&3; echo 638x!= { ${_build_all_dirs:@x@${target($x):?:echo '$x: _DIRDEP_USE';}@} echo; } >&3; echo 639.if !empty(DEP_EXPORT_VARS) 640# Discouraged, but there are always exceptions. 641# Handle it here rather than explain how. 642x!= { echo; ${DEP_EXPORT_VARS:@v@echo '$v=${$v}';@} echo '.export ${DEP_EXPORT_VARS}'; echo; } >&3; echo 643.endif 644.else 645# this makes it all happen 646dirdeps: ${_build_all_dirs} 647.endif 648${_build_all_dirs}: _DIRDEP_USE 649 650.if ${_debug_reldir} 651.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: needs: ${_build_dirs} 652.endif 653 654.if !empty(DEP_EXPORT_VARS) 655.export ${DEP_EXPORT_VARS} 656DEP_EXPORT_VARS= 657.endif 658 659# this builds the dependency graph 660.for m in ${_machines} 661# it would be nice to do :N${.TARGET} 662.if !empty(__qual_depdirs) 663.for q in ${__qual_depdirs:${M_dep_qual_fixes:ts:}:E:O:u:N$m} 664.if ${_debug_reldir} || ${DEBUG_DIRDEPS:@x@${${DEP_RELDIR}.$m:L:M$x}${${DEP_RELDIR}.$q:L:M$x}@} != "" 665.info ${DEP_RELDIR}.$m: graph: ${_build_dirs:M*.$q} 666.endif 667.if ${BUILD_DIRDEPS_CACHE} == "yes" 668x!= { echo; echo '${_this_dir}.$m: ${_build_dirs:M*.$q:${M_oneperline}}'; echo; } >&3; echo 669.else 670${_this_dir}.$m: ${_build_dirs:M*.$q} 671.endif 672.endfor 673.endif 674.if ${_debug_reldir} 675.info ${DEP_RELDIR}.$m: graph: ${_build_dirs:M*.$m:N${_this_dir}.$m} 676.endif 677.if ${BUILD_DIRDEPS_CACHE} == "yes" 678x!= { echo; echo '${_this_dir}.$m: ${_build_dirs:M*.$m:N${_this_dir}.$m:${M_oneperline}}'; echo; } >&3; echo 679.else 680${_this_dir}.$m: ${_build_dirs:M*.$m:N${_this_dir}.$m} 681.endif 682.endfor 683 684.endif 685 686# Now find more dependencies - and recurse. 687.for d in ${_build_all_dirs} 688.if !target(_dirdeps_checked.$d) 689# once only 690_dirdeps_checked.$d: 691.if ${_debug_search} 692.info checking $d 693.endif 694# Note: _build_all_dirs is fully qualifed so d:R is always the directory 695.if exists(${d:R}) 696# we pass _DEP_TARGET_SPEC to tell the next step what we want 697_DEP_TARGET_SPEC := ${d:E} 698# some makefiles may still look at this 699_DEP_MACHINE := ${d:E:C/,.*//} 700# set these too in case Makefile.depend* uses them 701.if ${TARGET_SPEC_VARS:[#]} > 1 702_dtspec := ${_DEP_TARGET_SPEC:S/,/ /g} 703.for i in ${_tspec_x} 704DEP_${TARGET_SPEC_VARS:[$i]} := ${_dtspec:[$i]} 705.endfor 706.else 707DEP_MACHINE := ${_DEP_MACHINE} 708.endif 709# Warning: there is an assumption here that MACHINE is always 710# the first entry in TARGET_SPEC_VARS. 711# If TARGET_SPEC and MACHINE are insufficient, you have a problem. 712_m := ${.MAKE.DEPENDFILE_PREFERENCE:T:S;${TARGET_SPEC}$;${d:E};:S;${MACHINE};${d:E:C/,.*//};:@m@${exists(${d:R}/$m):?${d:R}/$m:}@:[1]} 713.if !empty(_m) 714# M_dep_qual_fixes isn't geared to Makefile.depend 715_qm := ${_m:C;(\.depend)$;\1.${d:E};:${M_dep_qual_fixes:ts:}} 716.if ${_debug_search} 717.info Looking for ${_qm} 718.endif 719# set this "just in case" 720# we can skip :tA since we computed the path above 721DEP_RELDIR := ${_m:H:S,${SRCTOP}/,,} 722# and reset this 723DIRDEPS = 724.if ${_debug_reldir} && ${_qm} != ${_m} 725.info loading ${_m} for ${d:E} 726.endif 727.include <${_m}> 728.endif 729.endif 730.endif 731.endfor 732 733.endif # -V 734.endif # BUILD_DIRDEPS 735 736.elif ${.MAKE.LEVEL} > 42 737.error You should have stopped recursing by now. 738.else 739# we are building something 740DEP_RELDIR := ${RELDIR} 741_DEP_RELDIR := ${RELDIR} 742# pickup local dependencies 743.if ${MAKE_VERSION} < 20160220 744.-include <.depend> 745.else 746.dinclude <.depend> 747.endif 748.endif 749 750# bootstrapping new dependencies made easy? 751.if !target(bootstrap) && (make(bootstrap) || \ 752 make(bootstrap-this) || \ 753 make(bootstrap-recurse) || \ 754 make(bootstrap-empty)) 755 756# if we are bootstrapping create the default 757_want = ${.CURDIR}/${.MAKE.DEPENDFILE_DEFAULT:T} 758 759.if exists(${_want}) 760# stop here 761${.TARGETS:Mboot*}: 762.elif !make(bootstrap-empty) 763# find a Makefile.depend to use as _src 764_src != cd ${.CURDIR} && for m in ${.MAKE.DEPENDFILE_PREFERENCE:T:S,${MACHINE},*,}; do test -s $$m || continue; echo $$m; break; done; echo 765.if empty(_src) 766.error cannot find any of ${.MAKE.DEPENDFILE_PREFERENCE:T}${.newline}Use: bootstrap-empty 767.endif 768 769_src?= ${.MAKE.DEPENDFILE} 770 771.MAKE.DEPENDFILE_BOOTSTRAP_SED+= -e 's/${_src:E:C/,.*//}/${MACHINE}/g' 772 773# just create Makefile.depend* for this dir 774bootstrap-this: .NOTMAIN 775 @echo Bootstrapping ${RELDIR}/${_want:T} from ${_src:T}; \ 776 echo You need to build ${RELDIR} to correctly populate it. 777.if ${_src:T} != ${.MAKE.DEPENDFILE_PREFIX:T} 778 (cd ${.CURDIR} && sed ${.MAKE.DEPENDFILE_BOOTSTRAP_SED} ${_src} > ${_want:T}) 779.else 780 cp ${.CURDIR}/${_src:T} ${_want} 781.endif 782 783# create Makefile.depend* for this dir and its dependencies 784bootstrap: bootstrap-recurse 785bootstrap-recurse: bootstrap-this 786 787_mf := ${.PARSEFILE} 788bootstrap-recurse: .NOTMAIN .MAKE 789 @cd ${SRCTOP} && \ 790 for d in `cd ${RELDIR} && ${.MAKE} -B -f ${"${.MAKEFLAGS:M-n}":?${_src}:${.MAKE.DEPENDFILE:T}} -V DIRDEPS`; do \ 791 test -d $$d || d=$${d%.*}; \ 792 test -d $$d || continue; \ 793 echo "Checking $$d for bootstrap ..."; \ 794 (cd $$d && ${.MAKE} -f ${_mf} bootstrap-recurse); \ 795 done 796 797.endif 798 799# create an empty Makefile.depend* to get the ball rolling. 800bootstrap-empty: .NOTMAIN .NOMETA 801 @echo Creating empty ${RELDIR}/${_want:T}; \ 802 echo You need to build ${RELDIR} to correctly populate it. 803 @{ echo DIRDEPS=; echo ".include <dirdeps.mk>"; } > ${_want} 804 805.endif 806