1# $Id: dirdeps.mk,v 1.84 2016/11/27 02:44:34 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 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# touch this at your peril 141_DIRDEP_USE_LEVEL?= 0 142.if ${.MAKE.LEVEL} == ${_DIRDEP_USE_LEVEL} 143# only the first instance is interested in all this 144 145.if !target(_DIRDEP_USE) 146 147# do some setup we only need once 148_CURDIR ?= ${.CURDIR} 149_OBJDIR ?= ${.OBJDIR} 150 151now_utc = ${%s:L:gmtime} 152.if !defined(start_utc) 153start_utc := ${now_utc} 154.endif 155 156.if ${MAKEFILE:T} == ${.PARSEFILE} && empty(DIRDEPS) && ${.TARGETS:Uall:M*/*} != "" 157# This little trick let's us do 158# 159# mk -f dirdeps.mk some/dir.${TARGET_SPEC} 160# 161all: 162${.TARGETS:Nall}: all 163DIRDEPS := ${.TARGETS:M*[/.]*} 164# so that -DNO_DIRDEPS works 165DEP_RELDIR := ${DIRDEPS:[1]:R} 166# this will become DEP_MACHINE below 167TARGET_MACHINE := ${DIRDEPS:[1]:E:C/,.*//} 168.if ${TARGET_MACHINE:N*/*} == "" 169TARGET_MACHINE := ${MACHINE} 170.endif 171# disable DIRDEPS_CACHE as it does not like this trick 172MK_DIRDEPS_CACHE = no 173.endif 174 175# make sure we get the behavior we expect 176.MAKE.SAVE_DOLLARS = no 177 178# make sure these are empty to start with 179_DEP_TARGET_SPEC = 180 181# If TARGET_SPEC_VARS is other than just MACHINE 182# it should be set by sys.mk or similar by now. 183# TARGET_SPEC must not contain any '.'s. 184TARGET_SPEC_VARS ?= MACHINE 185# this is what we started with 186TARGET_SPEC = ${TARGET_SPEC_VARS:@v@${$v:U}@:ts,} 187# this is what we mostly use below 188DEP_TARGET_SPEC = ${TARGET_SPEC_VARS:S,^,DEP_,:@v@${$v:U}@:ts,} 189# make sure we have defaults 190.for v in ${TARGET_SPEC_VARS} 191DEP_$v ?= ${$v} 192.endfor 193 194.if ${TARGET_SPEC_VARS:[#]} > 1 195# Ok, this gets more complex (putting it mildly). 196# In order to stay sane, we need to ensure that all the build_dirs 197# we compute below are fully qualified wrt DEP_TARGET_SPEC. 198# The makefiles may only partially specify (eg. MACHINE only), 199# so we need to construct a set of modifiers to fill in the gaps. 200.if ${TARGET_SPEC_VARS:[#]} > 10 201# seriously? better have jot(1) or equivalent to produce suitable sequence 202_tspec_x := ${${JOT:Ujot} ${TARGET_SPEC_VARS:[#]}:L:sh} 203.else 204# we can provide the sequence ourselves 205_tspec_x := ${1 2 3 4 5 6 7 8 9 10:L:[1..${TARGET_SPEC_VARS:[#]}]} 206.endif 207# this handles unqualified entries 208M_dep_qual_fixes = C;(/[^/.,]+)$$;\1.$${DEP_TARGET_SPEC}; 209# there needs to be at least one item missing for these to make sense 210.for i in ${_tspec_x:[2..-1]} 211_tspec_m$i := ${TARGET_SPEC_VARS:[2..$i]:@w@[^,]+@:ts,} 212_tspec_a$i := ,${TARGET_SPEC_VARS:[$i..-1]:@v@$$$${DEP_$v}@:ts,} 213M_dep_qual_fixes += C;(\.${_tspec_m$i})$$;\1${_tspec_a$i}; 214.endfor 215.else 216# A harmless? default. 217M_dep_qual_fixes = U 218.endif 219 220.if !defined(.MAKE.DEPENDFILE_PREFERENCE) 221# .MAKE.DEPENDFILE_PREFERENCE makes the logic below neater? 222# you really want this set by sys.mk or similar 223.MAKE.DEPENDFILE_PREFERENCE = ${_CURDIR}/${.MAKE.DEPENDFILE:T} 224.if ${.MAKE.DEPENDFILE:E} == "${TARGET_SPEC}" 225.if ${TARGET_SPEC} != ${MACHINE} 226.MAKE.DEPENDFILE_PREFERENCE += ${_CURDIR}/${.MAKE.DEPENDFILE:T:R}.$${MACHINE} 227.endif 228.MAKE.DEPENDFILE_PREFERENCE += ${_CURDIR}/${.MAKE.DEPENDFILE:T:R} 229.endif 230.endif 231 232_default_dependfile := ${.MAKE.DEPENDFILE_PREFERENCE:[1]:T} 233_machine_dependfiles := ${.MAKE.DEPENDFILE_PREFERENCE:T:M*${MACHINE}*} 234 235# for machine specific dependfiles we require ${MACHINE} to be at the end 236# also for the sake of sanity we require a common prefix 237.if !defined(.MAKE.DEPENDFILE_PREFIX) 238# knowing .MAKE.DEPENDFILE_PREFIX helps 239.if !empty(_machine_dependfiles) 240.MAKE.DEPENDFILE_PREFIX := ${_machine_dependfiles:[1]:T:R} 241.else 242.MAKE.DEPENDFILE_PREFIX := ${_default_dependfile:T} 243.endif 244.endif 245 246 247# this is how we identify non-machine specific dependfiles 248N_notmachine := ${.MAKE.DEPENDFILE_PREFERENCE:E:N*${MACHINE}*:${M_ListToSkip}} 249 250.endif # !target(_DIRDEP_USE) 251 252# First off, we want to know what ${MACHINE} to build for. 253# This can be complicated if we are using a mixture of ${MACHINE} specific 254# and non-specific Makefile.depend* 255 256# if we were included recursively _DEP_TARGET_SPEC should be valid. 257.if empty(_DEP_TARGET_SPEC) 258# we may or may not have included a dependfile yet 259.if defined(.INCLUDEDFROMFILE) 260_last_dependfile := ${.INCLUDEDFROMFILE:M${.MAKE.DEPENDFILE_PREFIX}*} 261.else 262_last_dependfile := ${.MAKE.MAKEFILES:M*/${.MAKE.DEPENDFILE_PREFIX}*:[-1]} 263.endif 264.if ${_debug_reldir:U0} 265.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: _last_dependfile='${_last_dependfile}' 266.endif 267 268.if empty(_last_dependfile) || ${_last_dependfile:E:${N_notmachine}} == "" 269# this is all we have to work with 270DEP_MACHINE = ${TARGET_MACHINE:U${MACHINE}} 271_DEP_TARGET_SPEC := ${DEP_TARGET_SPEC} 272.else 273_DEP_TARGET_SPEC = ${_last_dependfile:${M_dep_qual_fixes:ts:}:E} 274.endif 275.if !empty(_last_dependfile) 276# record that we've read dependfile for this 277_dirdeps_checked.${_CURDIR}.${TARGET_SPEC}: 278.endif 279.endif 280 281# by now _DEP_TARGET_SPEC should be set, parse it. 282.if ${TARGET_SPEC_VARS:[#]} > 1 283# we need to parse DEP_MACHINE may or may not contain more info 284_tspec := ${_DEP_TARGET_SPEC:S/,/ /g} 285.for i in ${_tspec_x} 286DEP_${TARGET_SPEC_VARS:[$i]} := ${_tspec:[$i]} 287.endfor 288.for v in ${TARGET_SPEC_VARS:O:u} 289.if empty(DEP_$v) 290.undef DEP_$v 291.endif 292.endfor 293.else 294DEP_MACHINE := ${_DEP_TARGET_SPEC} 295.endif 296 297# reset each time through 298_build_all_dirs = 299 300# the first time we are included the _DIRDEP_USE target will not be defined 301# we can use this as a clue to do initialization and other one time things. 302.if !target(_DIRDEP_USE) 303# make sure this target exists 304dirdeps: beforedirdeps .WAIT 305beforedirdeps: 306 307# We normally expect to be included by Makefile.depend.* 308# which sets the DEP_* macros below. 309DEP_RELDIR ?= ${RELDIR} 310 311# this can cause lots of output! 312# set to a set of glob expressions that might match RELDIR 313DEBUG_DIRDEPS ?= no 314 315# remember the initial value of DEP_RELDIR - we test for it below. 316_DEP_RELDIR := ${DEP_RELDIR} 317 318.endif 319 320# DIRDEPS_CACHE can be very handy for debugging. 321# Also if repeatedly building the same target, 322# we can avoid the overhead of re-computing the tree dependencies. 323MK_DIRDEPS_CACHE ?= no 324BUILD_DIRDEPS_CACHE ?= no 325BUILD_DIRDEPS ?= yes 326 327.if ${MK_DIRDEPS_CACHE} == "yes" 328# this is where we will cache all our work 329DIRDEPS_CACHE ?= ${_OBJDIR:tA}/dirdeps.cache${.TARGETS:Nall:O:u:ts-:S,/,_,g:S,^,.,:N.} 330.endif 331 332# pickup customizations 333# as below you can use !target(_DIRDEP_USE) to protect things 334# which should only be done once. 335.-include <local.dirdeps.mk> 336 337.if !target(_DIRDEP_USE) 338# things we skip for host tools 339SKIP_HOSTDIR ?= 340 341NSkipHostDir = ${SKIP_HOSTDIR:N*.host*:S,$,.host*,:N.host*:S,^,${SRCTOP}/,:${M_ListToSkip}} 342 343# things we always skip 344# SKIP_DIRDEPS allows for adding entries on command line. 345SKIP_DIR += .host *.WAIT ${SKIP_DIRDEPS} 346SKIP_DIR.host += ${SKIP_HOSTDIR} 347 348DEP_SKIP_DIR = ${SKIP_DIR} \ 349 ${SKIP_DIR.${DEP_TARGET_SPEC}:U} \ 350 ${TARGET_SPEC_VARS:@v@${SKIP_DIR.${DEP_$v}:U}@} \ 351 ${SKIP_DIRDEPS.${DEP_TARGET_SPEC}:U} \ 352 ${TARGET_SPEC_VARS:@v@${SKIP_DIRDEPS.${DEP_$v}:U}@} 353 354 355NSkipDir = ${DEP_SKIP_DIR:${M_ListToSkip}} 356 357.if defined(NODIRDEPS) || defined(WITHOUT_DIRDEPS) 358NO_DIRDEPS = 359.elif defined(WITHOUT_DIRDEPS_BELOW) 360NO_DIRDEPS_BELOW = 361.endif 362 363.if defined(NO_DIRDEPS) 364# confine ourselves to the original dir and below. 365DIRDEPS_FILTER += M${_DEP_RELDIR}* 366.elif defined(NO_DIRDEPS_BELOW) 367DIRDEPS_FILTER += M${_DEP_RELDIR} 368.endif 369 370# this is what we run below 371DIRDEP_MAKE?= ${.MAKE} 372 373# we suppress SUBDIR when visiting the leaves 374# we assume sys.mk will set MACHINE_ARCH 375# you can add extras to DIRDEP_USE_ENV 376# if there is no makefile in the target directory, we skip it. 377_DIRDEP_USE: .USE .MAKE 378 @for m in ${.MAKE.MAKEFILE_PREFERENCE}; do \ 379 test -s ${.TARGET:R}/$$m || continue; \ 380 echo "${TRACER}Checking ${.TARGET:R} for ${.TARGET:E} ..."; \ 381 MACHINE_ARCH= NO_SUBDIR=1 ${DIRDEP_USE_ENV} \ 382 TARGET_SPEC=${.TARGET:E} \ 383 MACHINE=${.TARGET:E} \ 384 ${DIRDEP_MAKE} -C ${.TARGET:R} || exit 1; \ 385 break; \ 386 done 387 388.ifdef ALL_MACHINES 389# this is how you limit it to only the machines we have been built for 390# previously. 391.if empty(ONLY_TARGET_SPEC_LIST) && empty(ONLY_MACHINE_LIST) 392.if !empty(ALL_MACHINE_LIST) 393# ALL_MACHINE_LIST is the list of all legal machines - ignore anything else 394_machine_list != cd ${_CURDIR} && 'ls' -1 ${ALL_MACHINE_LIST:O:u:@m@${.MAKE.DEPENDFILE:T:R}.$m@} 2> /dev/null; echo 395.else 396_machine_list != 'ls' -1 ${_CURDIR}/${.MAKE.DEPENDFILE_PREFIX}.* 2> /dev/null; echo 397.endif 398_only_machines := ${_machine_list:${NIgnoreFiles:UN*.bak}:E:O:u} 399.else 400_only_machines := ${ONLY_TARGET_SPEC_LIST:U} ${ONLY_MACHINE_LIST:U} 401.endif 402 403.if empty(_only_machines) 404# we must be boot-strapping 405_only_machines := ${TARGET_MACHINE:U${ALL_MACHINE_LIST:U${DEP_MACHINE}}} 406.endif 407 408.else # ! ALL_MACHINES 409# if ONLY_TARGET_SPEC_LIST or ONLY_MACHINE_LIST is set, we are limited to that. 410# Note that ONLY_TARGET_SPEC_LIST should be fully qualified. 411# if TARGET_MACHINE is set - it is really the same as ONLY_MACHINE_LIST 412# otherwise DEP_MACHINE is it - so DEP_MACHINE will match. 413_only_machines := ${ONLY_TARGET_SPEC_LIST:U:M${DEP_MACHINE},*} 414.if empty(_only_machines) 415_only_machines := ${ONLY_MACHINE_LIST:U${TARGET_MACHINE:U${DEP_MACHINE}}:M${DEP_MACHINE}} 416.endif 417.endif 418 419.if !empty(NOT_MACHINE_LIST) 420_only_machines := ${_only_machines:${NOT_MACHINE_LIST:${M_ListToSkip}}} 421.endif 422.if !empty(NOT_TARGET_SPEC_LIST) 423# we must first qualify 424_dm := ${DEP_MACHINE} 425_only_machines := ${_only_machines:M*,*} ${_only_machines:N*,*:@DEP_MACHINE@${DEP_TARGET_SPEC}@:S,^,.,:${M_dep_qual_fixes:ts:}:O:u:S,^.,,} 426DEP_MACHINE := ${_dm} 427_only_machines := ${_only_machines:${NOT_TARGET_SPEC_LIST:${M_ListToSkip}}} 428.endif 429# clean up 430_only_machines := ${_only_machines:O:u} 431 432# make sure we have a starting place? 433DIRDEPS ?= ${RELDIR} 434.endif # target 435 436.if !defined(NO_DIRDEPS) && !defined(NO_DIRDEPS_BELOW) 437.if ${MK_DIRDEPS_CACHE} == "yes" 438 439# just ensure this exists 440build-dirdeps: 441 442M_oneperline = @x@\\${.newline} $$x@ 443 444.if ${BUILD_DIRDEPS_CACHE} == "no" 445.if !target(dirdeps-cached) 446# we do this via sub-make 447BUILD_DIRDEPS = no 448 449# ignore anything but these 450.MAKE.META.IGNORE_FILTER = M*/${.MAKE.DEPENDFILE_PREFIX}* 451 452dirdeps: dirdeps-cached 453dirdeps-cached: ${DIRDEPS_CACHE} .MAKE 454 @echo "${TRACER}Using ${DIRDEPS_CACHE}" 455 @MAKELEVEL=${.MAKE.LEVEL} ${.MAKE} -C ${_CURDIR} -f ${DIRDEPS_CACHE} \ 456 dirdeps MK_DIRDEPS_CACHE=no BUILD_DIRDEPS=no 457 458# these should generally do 459BUILD_DIRDEPS_MAKEFILE ?= ${MAKEFILE} 460BUILD_DIRDEPS_TARGETS ?= ${.TARGETS} 461 462# we need the .meta file to ensure we update if 463# any of the Makefile.depend* changed. 464# We do not want to compare the command line though. 465${DIRDEPS_CACHE}: .META .NOMETA_CMP 466 +@{ echo '# Autogenerated - do NOT edit!'; echo; \ 467 echo 'BUILD_DIRDEPS=no'; echo; \ 468 echo '.include <dirdeps.mk>'; \ 469 } > ${.TARGET}.new 470 +@MAKELEVEL=${.MAKE.LEVEL} DIRDEPS_CACHE=${DIRDEPS_CACHE} \ 471 DIRDEPS="${DIRDEPS}" \ 472 TARGET_SPEC=${TARGET_SPEC} \ 473 MAKEFLAGS= ${.MAKE} -C ${_CURDIR} -f ${BUILD_DIRDEPS_MAKEFILE} \ 474 ${BUILD_DIRDEPS_TARGETS} BUILD_DIRDEPS_CACHE=yes \ 475 .MAKE.DEPENDFILE=.none \ 476 ${.MAKEFLAGS:tW:S,-D ,-D,g:tw:M*WITH*} \ 477 3>&1 1>&2 | sed 's,${SRCTOP},$${SRCTOP},g' >> ${.TARGET}.new && \ 478 mv ${.TARGET}.new ${.TARGET} 479 480.endif 481.elif !target(_count_dirdeps) 482# we want to capture the dirdeps count in the cache 483.END: _count_dirdeps 484_count_dirdeps: .NOMETA 485 @echo '.info $${.newline}$${TRACER}Makefiles read: total=${.MAKE.MAKEFILES:[#]} depend=${.MAKE.MAKEFILES:M*depend*:[#]} dirdeps=${.ALLTARGETS:M${SRCTOP}*:O:u:[#]}' >&3 486 487.endif 488.elif !make(dirdeps) && !target(_count_dirdeps) 489beforedirdeps: _count_dirdeps 490_count_dirdeps: .NOMETA 491 @echo "${TRACER}Makefiles read: total=${.MAKE.MAKEFILES:[#]} depend=${.MAKE.MAKEFILES:M*depend*:[#]} dirdeps=${.ALLTARGETS:M${SRCTOP}*:O:u:[#]} seconds=`expr ${now_utc} - ${start_utc}`" 492 493.endif 494.endif 495 496.if ${BUILD_DIRDEPS} == "yes" 497.if ${DEBUG_DIRDEPS:@x@${DEP_RELDIR:M$x}${${DEP_RELDIR}.${DEP_MACHINE}:L:M$x}@} != "" 498_debug_reldir = 1 499.else 500_debug_reldir = 0 501.endif 502.if ${DEBUG_DIRDEPS:@x@${DEP_RELDIR:M$x}${${DEP_RELDIR}.depend:L:M$x}@} != "" 503_debug_search = 1 504.else 505_debug_search = 0 506.endif 507 508# the rest is done repeatedly for every Makefile.depend we read. 509# if we are anything but the original dir we care only about the 510# machine type we were included for.. 511 512.if ${DEP_RELDIR} == "." 513_this_dir := ${SRCTOP} 514.else 515_this_dir := ${SRCTOP}/${DEP_RELDIR} 516.endif 517 518# on rare occasions, there can be a need for extra help 519_dep_hack := ${_this_dir}/${.MAKE.DEPENDFILE_PREFIX}.inc 520.-include <${_dep_hack}> 521 522.if ${DEP_RELDIR} != ${_DEP_RELDIR} || ${DEP_TARGET_SPEC} != ${TARGET_SPEC} 523# this should be all 524_machines := ${DEP_MACHINE} 525.else 526# this is the machine list we actually use below 527_machines := ${_only_machines} 528 529.if defined(HOSTPROG) || ${DEP_MACHINE} == "host" 530# we need to build this guy's dependencies for host as well. 531_machines += host 532.endif 533 534_machines := ${_machines:O:u} 535.endif 536 537.if ${TARGET_SPEC_VARS:[#]} > 1 538# we need to tweak _machines 539_dm := ${DEP_MACHINE} 540# apply the same filtering that we do when qualifying DIRDEPS. 541# M_dep_qual_fixes expects .${MACHINE}* so add (and remove) '.' 542# Again we expect that any already qualified machines are fully qualified. 543_machines := ${_machines:M*,*} ${_machines:N*,*:@DEP_MACHINE@${DEP_TARGET_SPEC}@:S,^,.,:${M_dep_qual_fixes:ts:}:O:u:S,^.,,} 544DEP_MACHINE := ${_dm} 545_machines := ${_machines:O:u} 546.endif 547 548# reset each time through 549_build_dirs = 550 551.if ${DEP_RELDIR} == ${_DEP_RELDIR} 552# pickup other machines for this dir if necessary 553.if ${BUILD_AT_LEVEL0:Uyes} == "no" 554_build_dirs += ${_machines:@m@${_CURDIR}.$m@} 555.else 556_build_dirs += ${_machines:N${DEP_TARGET_SPEC}:@m@${_CURDIR}.$m@} 557.if ${DEP_TARGET_SPEC} == ${TARGET_SPEC} 558# pickup local dependencies now 559.if ${MAKE_VERSION} < 20160220 560.-include <.depend> 561.else 562.dinclude <.depend> 563.endif 564.endif 565.endif 566.endif 567 568.if ${_debug_reldir} 569.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: DIRDEPS='${DIRDEPS}' 570.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: _machines='${_machines}' 571.endif 572 573.if !empty(DIRDEPS) 574# these we reset each time through as they can depend on DEP_MACHINE 575DEP_DIRDEPS_FILTER = \ 576 ${DIRDEPS_FILTER.${DEP_TARGET_SPEC}:U} \ 577 ${TARGET_SPEC_VARS:@v@${DIRDEPS_FILTER.${DEP_$v}:U}@} \ 578 ${DIRDEPS_FILTER:U} 579.if empty(DEP_DIRDEPS_FILTER) 580# something harmless 581DEP_DIRDEPS_FILTER = U 582.endif 583 584# this is what we start with 585__depdirs := ${DIRDEPS:${NSkipDir}:${DEP_DIRDEPS_FILTER:ts:}:C,//+,/,g:O:u:@d@${SRCTOP}/$d@} 586 587# some entries may be qualified with .<machine> 588# the :M*/*/*.* just tries to limit the dirs we check to likely ones. 589# the ${d:E:M*/*} ensures we don't consider junos/usr.sbin/mgd 590__qual_depdirs := ${__depdirs:M*/*/*.*:@d@${exists($d):?:${"${d:E:M*/*}":?:${exists(${d:R}):?$d:}}}@} 591__unqual_depdirs := ${__depdirs:${__qual_depdirs:Uno:${M_ListToSkip}}} 592 593.if ${DEP_RELDIR} == ${_DEP_RELDIR} 594# if it was called out - we likely need it. 595__hostdpadd := ${DPADD:U.:M${HOST_OBJTOP}/*:S,${HOST_OBJTOP}/,,:H:${NSkipDir}:${DIRDEPS_FILTER:ts:}:S,$,.host,:N.*:@d@${SRCTOP}/$d@} 596__qual_depdirs += ${__hostdpadd} 597.endif 598 599.if ${_debug_reldir} 600.info depdirs=${__depdirs} 601.info qualified=${__qual_depdirs} 602.info unqualified=${__unqual_depdirs} 603.endif 604 605# _build_dirs is what we will feed to _DIRDEP_USE 606_build_dirs += \ 607 ${__qual_depdirs:M*.host:${NSkipHostDir}:N.host} \ 608 ${__qual_depdirs:N*.host} \ 609 ${_machines:Mhost*:@m@${__unqual_depdirs:@d@$d.$m@}@:${NSkipHostDir}:N.host} \ 610 ${_machines:Nhost*:@m@${__unqual_depdirs:@d@$d.$m@}@} 611 612# qualify everything now 613_build_dirs := ${_build_dirs:${M_dep_qual_fixes:ts:}:O:u} 614 615_build_all_dirs += ${_build_dirs} 616_build_all_dirs := ${_build_all_dirs:O:u} 617 618.endif # empty DIRDEPS 619 620# Normally if doing make -V something, 621# we do not want to waste time chasing DIRDEPS 622# but if we want to count the number of Makefile.depend* read, we do. 623.if ${.MAKEFLAGS:M-V${_V_READ_DIRDEPS}} == "" 624.if !empty(_build_all_dirs) 625.if ${BUILD_DIRDEPS_CACHE} == "yes" 626x!= { echo; echo '\# ${DEP_RELDIR}.${DEP_TARGET_SPEC}'; \ 627 echo 'dirdeps: ${_build_all_dirs:${M_oneperline}}'; echo; } >&3; echo 628x!= { ${_build_all_dirs:@x@${target($x):?:echo '$x: _DIRDEP_USE';}@} echo; } >&3; echo 629.else 630# this makes it all happen 631dirdeps: ${_build_all_dirs} 632.endif 633${_build_all_dirs}: _DIRDEP_USE 634 635.if ${_debug_reldir} 636.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: needs: ${_build_dirs} 637.endif 638 639# this builds the dependency graph 640.for m in ${_machines} 641# it would be nice to do :N${.TARGET} 642.if !empty(__qual_depdirs) 643.for q in ${__qual_depdirs:${M_dep_qual_fixes:ts:}:E:O:u:N$m} 644.if ${_debug_reldir} || ${DEBUG_DIRDEPS:@x@${${DEP_RELDIR}.$m:L:M$x}${${DEP_RELDIR}.$q:L:M$x}@} != "" 645.info ${DEP_RELDIR}.$m: graph: ${_build_dirs:M*.$q} 646.endif 647.if ${BUILD_DIRDEPS_CACHE} == "yes" 648x!= { echo; echo '${_this_dir}.$m: ${_build_dirs:M*.$q:${M_oneperline}}'; echo; } >&3; echo 649.else 650${_this_dir}.$m: ${_build_dirs:M*.$q} 651.endif 652.endfor 653.endif 654.if ${_debug_reldir} 655.info ${DEP_RELDIR}.$m: graph: ${_build_dirs:M*.$m:N${_this_dir}.$m} 656.endif 657.if ${BUILD_DIRDEPS_CACHE} == "yes" 658x!= { echo; echo '${_this_dir}.$m: ${_build_dirs:M*.$m:N${_this_dir}.$m:${M_oneperline}}'; echo; } >&3; echo 659.else 660${_this_dir}.$m: ${_build_dirs:M*.$m:N${_this_dir}.$m} 661.endif 662.endfor 663 664.endif 665 666# Now find more dependencies - and recurse. 667.for d in ${_build_all_dirs} 668.if !target(_dirdeps_checked.$d) 669# once only 670_dirdeps_checked.$d: 671.if ${_debug_search} 672.info checking $d 673.endif 674# Note: _build_all_dirs is fully qualifed so d:R is always the directory 675.if exists(${d:R}) 676# we pass _DEP_TARGET_SPEC to tell the next step what we want 677_DEP_TARGET_SPEC := ${d:E} 678# some makefiles may still look at this 679_DEP_MACHINE := ${d:E:C/,.*//} 680# set these too in case Makefile.depend* uses them 681.if ${TARGET_SPEC_VARS:[#]} > 1 682_dtspec := ${_DEP_TARGET_SPEC:S/,/ /g} 683.for i in ${_tspec_x} 684DEP_${TARGET_SPEC_VARS:[$i]} := ${_dtspec:[$i]} 685.endfor 686.else 687DEP_MACHINE := ${_DEP_MACHINE} 688.endif 689# Warning: there is an assumption here that MACHINE is always 690# the first entry in TARGET_SPEC_VARS. 691# If TARGET_SPEC and MACHINE are insufficient, you have a problem. 692_m := ${.MAKE.DEPENDFILE_PREFERENCE:T:S;${TARGET_SPEC}$;${d:E};:S;${MACHINE};${d:E:C/,.*//};:@m@${exists(${d:R}/$m):?${d:R}/$m:}@:[1]} 693.if !empty(_m) 694# M_dep_qual_fixes isn't geared to Makefile.depend 695_qm := ${_m:C;(\.depend)$;\1.${d:E};:${M_dep_qual_fixes:ts:}} 696.if ${_debug_search} 697.info Looking for ${_qm} 698.endif 699# set this "just in case" 700# we can skip :tA since we computed the path above 701DEP_RELDIR := ${_m:H:S,${SRCTOP}/,,} 702# and reset this 703DIRDEPS = 704.if ${_debug_reldir} && ${_qm} != ${_m} 705.info loading ${_m} for ${d:E} 706.endif 707.include <${_m}> 708.endif 709.endif 710.endif 711.endfor 712 713.endif # -V 714.endif # BUILD_DIRDEPS 715 716.elif ${.MAKE.LEVEL} > 42 717.error You should have stopped recursing by now. 718.else 719# we are building something 720DEP_RELDIR := ${RELDIR} 721_DEP_RELDIR := ${RELDIR} 722# pickup local dependencies 723.if ${MAKE_VERSION} < 20160220 724.-include <.depend> 725.else 726.dinclude <.depend> 727.endif 728.endif 729 730# bootstrapping new dependencies made easy? 731.if !target(bootstrap) && (make(bootstrap) || \ 732 make(bootstrap-this) || \ 733 make(bootstrap-recurse) || \ 734 make(bootstrap-empty)) 735 736# if we are bootstrapping create the default 737_want = ${.CURDIR}/${.MAKE.DEPENDFILE_DEFAULT:T} 738 739.if exists(${_want}) 740# stop here 741${.TARGETS:Mboot*}: 742.elif !make(bootstrap-empty) 743# find a Makefile.depend to use as _src 744_src != cd ${.CURDIR} && for m in ${.MAKE.DEPENDFILE_PREFERENCE:T:S,${MACHINE},*,}; do test -s $$m || continue; echo $$m; break; done; echo 745.if empty(_src) 746.error cannot find any of ${.MAKE.DEPENDFILE_PREFERENCE:T}${.newline}Use: bootstrap-empty 747.endif 748 749_src?= ${.MAKE.DEPENDFILE} 750 751.MAKE.DEPENDFILE_BOOTSTRAP_SED+= -e 's/${_src:E:C/,.*//}/${MACHINE}/g' 752 753# just create Makefile.depend* for this dir 754bootstrap-this: .NOTMAIN 755 @echo Bootstrapping ${RELDIR}/${_want:T} from ${_src:T}; \ 756 echo You need to build ${RELDIR} to correctly populate it. 757.if ${_src:T} != ${.MAKE.DEPENDFILE_PREFIX:T} 758 (cd ${.CURDIR} && sed ${.MAKE.DEPENDFILE_BOOTSTRAP_SED} ${_src} > ${_want}) 759.else 760 cp ${.CURDIR}/${_src:T} ${_want} 761.endif 762 763# create Makefile.depend* for this dir and its dependencies 764bootstrap: bootstrap-recurse 765bootstrap-recurse: bootstrap-this 766 767_mf := ${.PARSEFILE} 768bootstrap-recurse: .NOTMAIN .MAKE 769 @cd ${SRCTOP} && \ 770 for d in `cd ${RELDIR} && ${.MAKE} -B -f ${"${.MAKEFLAGS:M-n}":?${_src}:${.MAKE.DEPENDFILE:T}} -V DIRDEPS`; do \ 771 test -d $$d || d=$${d%.*}; \ 772 test -d $$d || continue; \ 773 echo "Checking $$d for bootstrap ..."; \ 774 (cd $$d && ${.MAKE} -f ${_mf} bootstrap-recurse); \ 775 done 776 777.endif 778 779# create an empty Makefile.depend* to get the ball rolling. 780bootstrap-empty: .NOTMAIN .NOMETA 781 @echo Creating empty ${RELDIR}/${_want:T}; \ 782 echo You need to build ${RELDIR} to correctly populate it. 783 @{ echo DIRDEPS=; echo ".include <dirdeps.mk>"; } > ${_want} 784 785.endif 786