1# $Id: dirdeps.mk,v 1.87 2017/03/07 01:49:03 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# 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 ${MAKE_VERSION} >= 20170130 201_tspec_x := ${TARGET_SPEC_VARS:range} 202.elif ${TARGET_SPEC_VARS:[#]} > 10 203# seriously? better have jot(1) or equivalent to produce suitable sequence 204_tspec_x := ${${JOT:Ujot} ${TARGET_SPEC_VARS:[#]}:L:sh} 205.else 206# we can provide the sequence ourselves 207_tspec_x := ${1 2 3 4 5 6 7 8 9 10:L:[1..${TARGET_SPEC_VARS:[#]}]} 208.endif 209# this handles unqualified entries 210M_dep_qual_fixes = C;(/[^/.,]+)$$;\1.$${DEP_TARGET_SPEC}; 211# there needs to be at least one item missing for these to make sense 212.for i in ${_tspec_x:[2..-1]} 213_tspec_m$i := ${TARGET_SPEC_VARS:[2..$i]:@w@[^,]+@:ts,} 214_tspec_a$i := ,${TARGET_SPEC_VARS:[$i..-1]:@v@$$$${DEP_$v}@:ts,} 215M_dep_qual_fixes += C;(\.${_tspec_m$i})$$;\1${_tspec_a$i}; 216.endfor 217.else 218# A harmless? default. 219M_dep_qual_fixes = U 220.endif 221 222.if !defined(.MAKE.DEPENDFILE_PREFERENCE) 223# .MAKE.DEPENDFILE_PREFERENCE makes the logic below neater? 224# you really want this set by sys.mk or similar 225.MAKE.DEPENDFILE_PREFERENCE = ${_CURDIR}/${.MAKE.DEPENDFILE:T} 226.if ${.MAKE.DEPENDFILE:E} == "${TARGET_SPEC}" 227.if ${TARGET_SPEC} != ${MACHINE} 228.MAKE.DEPENDFILE_PREFERENCE += ${_CURDIR}/${.MAKE.DEPENDFILE:T:R}.$${MACHINE} 229.endif 230.MAKE.DEPENDFILE_PREFERENCE += ${_CURDIR}/${.MAKE.DEPENDFILE:T:R} 231.endif 232.endif 233 234_default_dependfile := ${.MAKE.DEPENDFILE_PREFERENCE:[1]:T} 235_machine_dependfiles := ${.MAKE.DEPENDFILE_PREFERENCE:T:M*${MACHINE}*} 236 237# for machine specific dependfiles we require ${MACHINE} to be at the end 238# also for the sake of sanity we require a common prefix 239.if !defined(.MAKE.DEPENDFILE_PREFIX) 240# knowing .MAKE.DEPENDFILE_PREFIX helps 241.if !empty(_machine_dependfiles) 242.MAKE.DEPENDFILE_PREFIX := ${_machine_dependfiles:[1]:T:R} 243.else 244.MAKE.DEPENDFILE_PREFIX := ${_default_dependfile:T} 245.endif 246.endif 247 248 249# this is how we identify non-machine specific dependfiles 250N_notmachine := ${.MAKE.DEPENDFILE_PREFERENCE:E:N*${MACHINE}*:${M_ListToSkip}} 251 252.endif # !target(_DIRDEP_USE) 253 254# First off, we want to know what ${MACHINE} to build for. 255# This can be complicated if we are using a mixture of ${MACHINE} specific 256# and non-specific Makefile.depend* 257 258# if we were included recursively _DEP_TARGET_SPEC should be valid. 259.if empty(_DEP_TARGET_SPEC) 260# we may or may not have included a dependfile yet 261.if defined(.INCLUDEDFROMFILE) 262_last_dependfile := ${.INCLUDEDFROMFILE:M${.MAKE.DEPENDFILE_PREFIX}*} 263.else 264_last_dependfile := ${.MAKE.MAKEFILES:M*/${.MAKE.DEPENDFILE_PREFIX}*:[-1]} 265.endif 266.if ${_debug_reldir:U0} 267.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: _last_dependfile='${_last_dependfile}' 268.endif 269 270.if empty(_last_dependfile) || ${_last_dependfile:E:${N_notmachine}} == "" 271# this is all we have to work with 272DEP_MACHINE = ${TARGET_MACHINE:U${MACHINE}} 273_DEP_TARGET_SPEC := ${DEP_TARGET_SPEC} 274.else 275_DEP_TARGET_SPEC = ${_last_dependfile:${M_dep_qual_fixes:ts:}:E} 276.endif 277.if !empty(_last_dependfile) 278# record that we've read dependfile for this 279_dirdeps_checked.${_CURDIR}.${TARGET_SPEC}: 280.endif 281.endif 282 283# by now _DEP_TARGET_SPEC should be set, parse it. 284.if ${TARGET_SPEC_VARS:[#]} > 1 285# we need to parse DEP_MACHINE may or may not contain more info 286_tspec := ${_DEP_TARGET_SPEC:S/,/ /g} 287.for i in ${_tspec_x} 288DEP_${TARGET_SPEC_VARS:[$i]} := ${_tspec:[$i]} 289.endfor 290.for v in ${TARGET_SPEC_VARS:O:u} 291.if empty(DEP_$v) 292.undef DEP_$v 293.endif 294.endfor 295.else 296DEP_MACHINE := ${_DEP_TARGET_SPEC} 297.endif 298 299# reset each time through 300_build_all_dirs = 301 302# the first time we are included the _DIRDEP_USE target will not be defined 303# we can use this as a clue to do initialization and other one time things. 304.if !target(_DIRDEP_USE) 305# make sure this target exists 306dirdeps: beforedirdeps .WAIT 307beforedirdeps: 308 309# We normally expect to be included by Makefile.depend.* 310# which sets the DEP_* macros below. 311DEP_RELDIR ?= ${RELDIR} 312 313# this can cause lots of output! 314# set to a set of glob expressions that might match RELDIR 315DEBUG_DIRDEPS ?= no 316 317# remember the initial value of DEP_RELDIR - we test for it below. 318_DEP_RELDIR := ${DEP_RELDIR} 319 320.endif 321 322# DIRDEPS_CACHE can be very handy for debugging. 323# Also if repeatedly building the same target, 324# we can avoid the overhead of re-computing the tree dependencies. 325MK_DIRDEPS_CACHE ?= no 326BUILD_DIRDEPS_CACHE ?= no 327BUILD_DIRDEPS ?= yes 328 329.if ${MK_DIRDEPS_CACHE} == "yes" 330# this is where we will cache all our work 331DIRDEPS_CACHE ?= ${_OBJDIR:tA}/dirdeps.cache${.TARGETS:Nall:O:u:ts-:S,/,_,g:S,^,.,:N.} 332.endif 333 334# pickup customizations 335# as below you can use !target(_DIRDEP_USE) to protect things 336# which should only be done once. 337.-include <local.dirdeps.mk> 338 339.if !target(_DIRDEP_USE) 340# things we skip for host tools 341SKIP_HOSTDIR ?= 342 343NSkipHostDir = ${SKIP_HOSTDIR:N*.host*:S,$,.host*,:N.host*:S,^,${SRCTOP}/,:${M_ListToSkip}} 344 345# things we always skip 346# SKIP_DIRDEPS allows for adding entries on command line. 347SKIP_DIR += .host *.WAIT ${SKIP_DIRDEPS} 348SKIP_DIR.host += ${SKIP_HOSTDIR} 349 350DEP_SKIP_DIR = ${SKIP_DIR} \ 351 ${SKIP_DIR.${DEP_TARGET_SPEC}:U} \ 352 ${TARGET_SPEC_VARS:@v@${SKIP_DIR.${DEP_$v}:U}@} \ 353 ${SKIP_DIRDEPS.${DEP_TARGET_SPEC}:U} \ 354 ${TARGET_SPEC_VARS:@v@${SKIP_DIRDEPS.${DEP_$v}:U}@} 355 356 357NSkipDir = ${DEP_SKIP_DIR:${M_ListToSkip}} 358 359.if defined(NODIRDEPS) || defined(WITHOUT_DIRDEPS) 360NO_DIRDEPS = 361.elif defined(WITHOUT_DIRDEPS_BELOW) 362NO_DIRDEPS_BELOW = 363.endif 364 365.if defined(NO_DIRDEPS) 366# confine ourselves to the original dir and below. 367DIRDEPS_FILTER += M${_DEP_RELDIR}* 368.elif defined(NO_DIRDEPS_BELOW) 369DIRDEPS_FILTER += M${_DEP_RELDIR} 370.endif 371 372# this is what we run below 373DIRDEP_MAKE?= ${.MAKE} 374 375# we suppress SUBDIR when visiting the leaves 376# we assume sys.mk will set MACHINE_ARCH 377# you can add extras to DIRDEP_USE_ENV 378# if there is no makefile in the target directory, we skip it. 379_DIRDEP_USE: .USE .MAKE 380 @for m in ${.MAKE.MAKEFILE_PREFERENCE}; do \ 381 test -s ${.TARGET:R}/$$m || continue; \ 382 echo "${TRACER}Checking ${.TARGET:R} for ${.TARGET:E} ..."; \ 383 MACHINE_ARCH= NO_SUBDIR=1 ${DIRDEP_USE_ENV} \ 384 TARGET_SPEC=${.TARGET:E} \ 385 MACHINE=${.TARGET:E} \ 386 ${DIRDEP_MAKE} -C ${.TARGET:R} || exit 1; \ 387 break; \ 388 done 389 390.ifdef ALL_MACHINES 391# this is how you limit it to only the machines we have been built for 392# previously. 393.if empty(ONLY_TARGET_SPEC_LIST) && empty(ONLY_MACHINE_LIST) 394.if !empty(ALL_MACHINE_LIST) 395# ALL_MACHINE_LIST is the list of all legal machines - ignore anything else 396_machine_list != cd ${_CURDIR} && 'ls' -1 ${ALL_MACHINE_LIST:O:u:@m@${.MAKE.DEPENDFILE:T:R}.$m@} 2> /dev/null; echo 397.else 398_machine_list != 'ls' -1 ${_CURDIR}/${.MAKE.DEPENDFILE_PREFIX}.* 2> /dev/null; echo 399.endif 400_only_machines := ${_machine_list:${NIgnoreFiles:UN*.bak}:E:O:u} 401.else 402_only_machines := ${ONLY_TARGET_SPEC_LIST:U} ${ONLY_MACHINE_LIST:U} 403.endif 404 405.if empty(_only_machines) 406# we must be boot-strapping 407_only_machines := ${TARGET_MACHINE:U${ALL_MACHINE_LIST:U${DEP_MACHINE}}} 408.endif 409 410.else # ! ALL_MACHINES 411# if ONLY_TARGET_SPEC_LIST or ONLY_MACHINE_LIST is set, we are limited to that. 412# Note that ONLY_TARGET_SPEC_LIST should be fully qualified. 413# if TARGET_MACHINE is set - it is really the same as ONLY_MACHINE_LIST 414# otherwise DEP_MACHINE is it - so DEP_MACHINE will match. 415_only_machines := ${ONLY_TARGET_SPEC_LIST:U:M${DEP_MACHINE},*} 416.if empty(_only_machines) 417_only_machines := ${ONLY_MACHINE_LIST:U${TARGET_MACHINE:U${DEP_MACHINE}}:M${DEP_MACHINE}} 418.endif 419.endif 420 421.if !empty(NOT_MACHINE_LIST) 422_only_machines := ${_only_machines:${NOT_MACHINE_LIST:${M_ListToSkip}}} 423.endif 424.if !empty(NOT_TARGET_SPEC_LIST) 425# we must first qualify 426_dm := ${DEP_MACHINE} 427_only_machines := ${_only_machines:M*,*} ${_only_machines:N*,*:@DEP_MACHINE@${DEP_TARGET_SPEC}@:S,^,.,:${M_dep_qual_fixes:ts:}:O:u:S,^.,,} 428DEP_MACHINE := ${_dm} 429_only_machines := ${_only_machines:${NOT_TARGET_SPEC_LIST:${M_ListToSkip}}} 430.endif 431# clean up 432_only_machines := ${_only_machines:O:u} 433 434# make sure we have a starting place? 435DIRDEPS ?= ${RELDIR} 436.endif # target 437 438.if !defined(NO_DIRDEPS) && !defined(NO_DIRDEPS_BELOW) 439.if ${MK_DIRDEPS_CACHE} == "yes" 440 441# just ensure this exists 442build-dirdeps: 443 444M_oneperline = @x@\\${.newline} $$x@ 445 446.if ${BUILD_DIRDEPS_CACHE} == "no" 447.if !target(dirdeps-cached) 448# we do this via sub-make 449BUILD_DIRDEPS = no 450 451# ignore anything but these 452.MAKE.META.IGNORE_FILTER = M*/${.MAKE.DEPENDFILE_PREFIX}* 453 454dirdeps: dirdeps-cached 455dirdeps-cached: ${DIRDEPS_CACHE} .MAKE 456 @echo "${TRACER}Using ${DIRDEPS_CACHE}" 457 @MAKELEVEL=${.MAKE.LEVEL} ${.MAKE} -C ${_CURDIR} -f ${DIRDEPS_CACHE} \ 458 dirdeps MK_DIRDEPS_CACHE=no BUILD_DIRDEPS=no 459 460# these should generally do 461BUILD_DIRDEPS_MAKEFILE ?= ${MAKEFILE} 462BUILD_DIRDEPS_TARGETS ?= ${.TARGETS} 463 464# we need the .meta file to ensure we update if 465# any of the Makefile.depend* changed. 466# We do not want to compare the command line though. 467${DIRDEPS_CACHE}: .META .NOMETA_CMP 468 +@{ echo '# Autogenerated - do NOT edit!'; echo; \ 469 echo 'BUILD_DIRDEPS=no'; echo; \ 470 echo '.include <dirdeps.mk>'; \ 471 } > ${.TARGET}.new 472 +@MAKELEVEL=${.MAKE.LEVEL} DIRDEPS_CACHE=${DIRDEPS_CACHE} \ 473 DIRDEPS="${DIRDEPS}" \ 474 TARGET_SPEC=${TARGET_SPEC} \ 475 MAKEFLAGS= ${.MAKE} -C ${_CURDIR} -f ${BUILD_DIRDEPS_MAKEFILE} \ 476 ${BUILD_DIRDEPS_TARGETS} BUILD_DIRDEPS_CACHE=yes \ 477 .MAKE.DEPENDFILE=.none \ 478 ${.MAKEFLAGS:tW:S,-D ,-D,g:tw:M*WITH*} \ 479 3>&1 1>&2 | sed 's,${SRCTOP},$${SRCTOP},g' >> ${.TARGET}.new && \ 480 mv ${.TARGET}.new ${.TARGET} 481 482.endif 483.elif !target(_count_dirdeps) 484# we want to capture the dirdeps count in the cache 485.END: _count_dirdeps 486_count_dirdeps: .NOMETA 487 @echo '.info $${.newline}$${TRACER}Makefiles read: total=${.MAKE.MAKEFILES:[#]} depend=${.MAKE.MAKEFILES:M*depend*:[#]} dirdeps=${.ALLTARGETS:M${SRCTOP}*:O:u:[#]}' >&3 488 489.endif 490.elif !make(dirdeps) && !target(_count_dirdeps) 491beforedirdeps: _count_dirdeps 492_count_dirdeps: .NOMETA 493 @echo "${TRACER}Makefiles read: total=${.MAKE.MAKEFILES:[#]} depend=${.MAKE.MAKEFILES:M*depend*:[#]} dirdeps=${.ALLTARGETS:M${SRCTOP}*:O:u:[#]} seconds=`expr ${now_utc} - ${start_utc}`" 494 495.endif 496.endif 497 498.if ${BUILD_DIRDEPS} == "yes" 499.if ${DEBUG_DIRDEPS:@x@${DEP_RELDIR:M$x}${${DEP_RELDIR}.${DEP_MACHINE}:L:M$x}@} != "" 500_debug_reldir = 1 501.else 502_debug_reldir = 0 503.endif 504.if ${DEBUG_DIRDEPS:@x@${DEP_RELDIR:M$x}${${DEP_RELDIR}.depend:L:M$x}@} != "" 505_debug_search = 1 506.else 507_debug_search = 0 508.endif 509 510# the rest is done repeatedly for every Makefile.depend we read. 511# if we are anything but the original dir we care only about the 512# machine type we were included for.. 513 514.if ${DEP_RELDIR} == "." 515_this_dir := ${SRCTOP} 516.else 517_this_dir := ${SRCTOP}/${DEP_RELDIR} 518.endif 519 520# on rare occasions, there can be a need for extra help 521_dep_hack := ${_this_dir}/${.MAKE.DEPENDFILE_PREFIX}.inc 522.-include <${_dep_hack}> 523 524.if ${DEP_RELDIR} != ${_DEP_RELDIR} || ${DEP_TARGET_SPEC} != ${TARGET_SPEC} 525# this should be all 526_machines := ${DEP_MACHINE} 527.else 528# this is the machine list we actually use below 529_machines := ${_only_machines} 530 531.if defined(HOSTPROG) || ${DEP_MACHINE} == "host" 532# we need to build this guy's dependencies for host as well. 533_machines += host 534.endif 535 536_machines := ${_machines:O:u} 537.endif 538 539.if ${TARGET_SPEC_VARS:[#]} > 1 540# we need to tweak _machines 541_dm := ${DEP_MACHINE} 542# apply the same filtering that we do when qualifying DIRDEPS. 543# M_dep_qual_fixes expects .${MACHINE}* so add (and remove) '.' 544# Again we expect that any already qualified machines are fully qualified. 545_machines := ${_machines:M*,*} ${_machines:N*,*:@DEP_MACHINE@${DEP_TARGET_SPEC}@:S,^,.,:${M_dep_qual_fixes:ts:}:O:u:S,^.,,} 546DEP_MACHINE := ${_dm} 547_machines := ${_machines:O:u} 548.endif 549 550# reset each time through 551_build_dirs = 552 553.if ${DEP_RELDIR} == ${_DEP_RELDIR} 554# pickup other machines for this dir if necessary 555.if ${BUILD_AT_LEVEL0:Uyes} == "no" 556_build_dirs += ${_machines:@m@${_CURDIR}.$m@} 557.else 558_build_dirs += ${_machines:N${DEP_TARGET_SPEC}:@m@${_CURDIR}.$m@} 559.if ${DEP_TARGET_SPEC} == ${TARGET_SPEC} 560# pickup local dependencies now 561.if ${MAKE_VERSION} < 20160220 562.-include <.depend> 563.else 564.dinclude <.depend> 565.endif 566.endif 567.endif 568.endif 569 570.if ${_debug_reldir} 571.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: DIRDEPS='${DIRDEPS}' 572.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: _machines='${_machines}' 573.endif 574 575.if !empty(DIRDEPS) 576# these we reset each time through as they can depend on DEP_MACHINE 577DEP_DIRDEPS_FILTER = \ 578 ${DIRDEPS_FILTER.${DEP_TARGET_SPEC}:U} \ 579 ${TARGET_SPEC_VARS:@v@${DIRDEPS_FILTER.${DEP_$v}:U}@} \ 580 ${DIRDEPS_FILTER:U} 581.if empty(DEP_DIRDEPS_FILTER) 582# something harmless 583DEP_DIRDEPS_FILTER = U 584.endif 585 586# this is what we start with 587__depdirs := ${DIRDEPS:${NSkipDir}:${DEP_DIRDEPS_FILTER:ts:}:C,//+,/,g:O:u:@d@${SRCTOP}/$d@} 588 589# some entries may be qualified with .<machine> 590# the :M*/*/*.* just tries to limit the dirs we check to likely ones. 591# the ${d:E:M*/*} ensures we don't consider junos/usr.sbin/mgd 592__qual_depdirs := ${__depdirs:M*/*/*.*:@d@${exists($d):?:${"${d:E:M*/*}":?:${exists(${d:R}):?$d:}}}@} 593__unqual_depdirs := ${__depdirs:${__qual_depdirs:Uno:${M_ListToSkip}}} 594 595.if ${DEP_RELDIR} == ${_DEP_RELDIR} 596# if it was called out - we likely need it. 597__hostdpadd := ${DPADD:U.:M${HOST_OBJTOP}/*:S,${HOST_OBJTOP}/,,:H:${NSkipDir}:${DIRDEPS_FILTER:ts:}:S,$,.host,:N.*:@d@${SRCTOP}/$d@} 598__qual_depdirs += ${__hostdpadd} 599.endif 600 601.if ${_debug_reldir} 602.info depdirs=${__depdirs} 603.info qualified=${__qual_depdirs} 604.info unqualified=${__unqual_depdirs} 605.endif 606 607# _build_dirs is what we will feed to _DIRDEP_USE 608_build_dirs += \ 609 ${__qual_depdirs:M*.host:${NSkipHostDir}:N.host} \ 610 ${__qual_depdirs:N*.host} \ 611 ${_machines:Mhost*:@m@${__unqual_depdirs:@d@$d.$m@}@:${NSkipHostDir}:N.host} \ 612 ${_machines:Nhost*:@m@${__unqual_depdirs:@d@$d.$m@}@} 613 614# qualify everything now 615_build_dirs := ${_build_dirs:${M_dep_qual_fixes:ts:}:O:u} 616 617.endif # empty DIRDEPS 618 619_build_all_dirs += ${_build_dirs} 620_build_all_dirs := ${_build_all_dirs:O:u} 621 622# Normally if doing make -V something, 623# we do not want to waste time chasing DIRDEPS 624# but if we want to count the number of Makefile.depend* read, we do. 625.if ${.MAKEFLAGS:M-V${_V_READ_DIRDEPS}} == "" 626.if !empty(_build_all_dirs) 627.if ${BUILD_DIRDEPS_CACHE} == "yes" 628x!= { echo; echo '\# ${DEP_RELDIR}.${DEP_TARGET_SPEC}'; \ 629 echo 'dirdeps: ${_build_all_dirs:${M_oneperline}}'; echo; } >&3; echo 630x!= { ${_build_all_dirs:@x@${target($x):?:echo '$x: _DIRDEP_USE';}@} echo; } >&3; echo 631.else 632# this makes it all happen 633dirdeps: ${_build_all_dirs} 634.endif 635${_build_all_dirs}: _DIRDEP_USE 636 637.if ${_debug_reldir} 638.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: needs: ${_build_dirs} 639.endif 640 641# this builds the dependency graph 642.for m in ${_machines} 643# it would be nice to do :N${.TARGET} 644.if !empty(__qual_depdirs) 645.for q in ${__qual_depdirs:${M_dep_qual_fixes:ts:}:E:O:u:N$m} 646.if ${_debug_reldir} || ${DEBUG_DIRDEPS:@x@${${DEP_RELDIR}.$m:L:M$x}${${DEP_RELDIR}.$q:L:M$x}@} != "" 647.info ${DEP_RELDIR}.$m: graph: ${_build_dirs:M*.$q} 648.endif 649.if ${BUILD_DIRDEPS_CACHE} == "yes" 650x!= { echo; echo '${_this_dir}.$m: ${_build_dirs:M*.$q:${M_oneperline}}'; echo; } >&3; echo 651.else 652${_this_dir}.$m: ${_build_dirs:M*.$q} 653.endif 654.endfor 655.endif 656.if ${_debug_reldir} 657.info ${DEP_RELDIR}.$m: graph: ${_build_dirs:M*.$m:N${_this_dir}.$m} 658.endif 659.if ${BUILD_DIRDEPS_CACHE} == "yes" 660x!= { echo; echo '${_this_dir}.$m: ${_build_dirs:M*.$m:N${_this_dir}.$m:${M_oneperline}}'; echo; } >&3; echo 661.else 662${_this_dir}.$m: ${_build_dirs:M*.$m:N${_this_dir}.$m} 663.endif 664.endfor 665 666.endif 667 668# Now find more dependencies - and recurse. 669.for d in ${_build_all_dirs} 670.if !target(_dirdeps_checked.$d) 671# once only 672_dirdeps_checked.$d: 673.if ${_debug_search} 674.info checking $d 675.endif 676# Note: _build_all_dirs is fully qualifed so d:R is always the directory 677.if exists(${d:R}) 678# we pass _DEP_TARGET_SPEC to tell the next step what we want 679_DEP_TARGET_SPEC := ${d:E} 680# some makefiles may still look at this 681_DEP_MACHINE := ${d:E:C/,.*//} 682# set these too in case Makefile.depend* uses them 683.if ${TARGET_SPEC_VARS:[#]} > 1 684_dtspec := ${_DEP_TARGET_SPEC:S/,/ /g} 685.for i in ${_tspec_x} 686DEP_${TARGET_SPEC_VARS:[$i]} := ${_dtspec:[$i]} 687.endfor 688.else 689DEP_MACHINE := ${_DEP_MACHINE} 690.endif 691# Warning: there is an assumption here that MACHINE is always 692# the first entry in TARGET_SPEC_VARS. 693# If TARGET_SPEC and MACHINE are insufficient, you have a problem. 694_m := ${.MAKE.DEPENDFILE_PREFERENCE:T:S;${TARGET_SPEC}$;${d:E};:S;${MACHINE};${d:E:C/,.*//};:@m@${exists(${d:R}/$m):?${d:R}/$m:}@:[1]} 695.if !empty(_m) 696# M_dep_qual_fixes isn't geared to Makefile.depend 697_qm := ${_m:C;(\.depend)$;\1.${d:E};:${M_dep_qual_fixes:ts:}} 698.if ${_debug_search} 699.info Looking for ${_qm} 700.endif 701# set this "just in case" 702# we can skip :tA since we computed the path above 703DEP_RELDIR := ${_m:H:S,${SRCTOP}/,,} 704# and reset this 705DIRDEPS = 706.if ${_debug_reldir} && ${_qm} != ${_m} 707.info loading ${_m} for ${d:E} 708.endif 709.include <${_m}> 710.endif 711.endif 712.endif 713.endfor 714 715.endif # -V 716.endif # BUILD_DIRDEPS 717 718.elif ${.MAKE.LEVEL} > 42 719.error You should have stopped recursing by now. 720.else 721# we are building something 722DEP_RELDIR := ${RELDIR} 723_DEP_RELDIR := ${RELDIR} 724# pickup local dependencies 725.if ${MAKE_VERSION} < 20160220 726.-include <.depend> 727.else 728.dinclude <.depend> 729.endif 730.endif 731 732# bootstrapping new dependencies made easy? 733.if !target(bootstrap) && (make(bootstrap) || \ 734 make(bootstrap-this) || \ 735 make(bootstrap-recurse) || \ 736 make(bootstrap-empty)) 737 738# if we are bootstrapping create the default 739_want = ${.CURDIR}/${.MAKE.DEPENDFILE_DEFAULT:T} 740 741.if exists(${_want}) 742# stop here 743${.TARGETS:Mboot*}: 744.elif !make(bootstrap-empty) 745# find a Makefile.depend to use as _src 746_src != cd ${.CURDIR} && for m in ${.MAKE.DEPENDFILE_PREFERENCE:T:S,${MACHINE},*,}; do test -s $$m || continue; echo $$m; break; done; echo 747.if empty(_src) 748.error cannot find any of ${.MAKE.DEPENDFILE_PREFERENCE:T}${.newline}Use: bootstrap-empty 749.endif 750 751_src?= ${.MAKE.DEPENDFILE} 752 753.MAKE.DEPENDFILE_BOOTSTRAP_SED+= -e 's/${_src:E:C/,.*//}/${MACHINE}/g' 754 755# just create Makefile.depend* for this dir 756bootstrap-this: .NOTMAIN 757 @echo Bootstrapping ${RELDIR}/${_want:T} from ${_src:T}; \ 758 echo You need to build ${RELDIR} to correctly populate it. 759.if ${_src:T} != ${.MAKE.DEPENDFILE_PREFIX:T} 760 (cd ${.CURDIR} && sed ${.MAKE.DEPENDFILE_BOOTSTRAP_SED} ${_src} > ${_want}) 761.else 762 cp ${.CURDIR}/${_src:T} ${_want} 763.endif 764 765# create Makefile.depend* for this dir and its dependencies 766bootstrap: bootstrap-recurse 767bootstrap-recurse: bootstrap-this 768 769_mf := ${.PARSEFILE} 770bootstrap-recurse: .NOTMAIN .MAKE 771 @cd ${SRCTOP} && \ 772 for d in `cd ${RELDIR} && ${.MAKE} -B -f ${"${.MAKEFLAGS:M-n}":?${_src}:${.MAKE.DEPENDFILE:T}} -V DIRDEPS`; do \ 773 test -d $$d || d=$${d%.*}; \ 774 test -d $$d || continue; \ 775 echo "Checking $$d for bootstrap ..."; \ 776 (cd $$d && ${.MAKE} -f ${_mf} bootstrap-recurse); \ 777 done 778 779.endif 780 781# create an empty Makefile.depend* to get the ball rolling. 782bootstrap-empty: .NOTMAIN .NOMETA 783 @echo Creating empty ${RELDIR}/${_want:T}; \ 784 echo You need to build ${RELDIR} to correctly populate it. 785 @{ echo DIRDEPS=; echo ".include <dirdeps.mk>"; } > ${_want} 786 787.endif 788