1# $Id: dirdeps.mk,v 1.133 2021/01/31 04:39:22 sjg Exp $ 2 3# Copyright (c) 2010-2021, Simon J. Gerraty 4# Copyright (c) 2010-2018, 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# Before each Makefile.depend file is read, we set 61# DEP_RELDIR to be the RELDIR (path relative to SRCTOP) for 62# its directory, and DEP_MACHINE etc according to the .<target_spec> 63# represented by the suffix of the corresponding target. 64# 65# Since each Makefile.depend file includes dirdeps.mk, this 66# processing is recursive and results in .MAKE.LEVEL 0 learning the 67# dependencies of the tree wrt the initial directory (_DEP_RELDIR). 68# 69# TARGET_SPEC_VARS 70# The default value is just MACHINE, and for most environments 71# this is sufficient. The _DIRDEP_USE target actually sets 72# both MACHINE and TARGET_SPEC to the suffix of the current 73# target so that in the general case TARGET_SPEC can be ignored. 74# 75# If more than MACHINE is needed then sys.mk needs to decompose 76# TARGET_SPEC and set the relevant variables accordingly. 77# It is important that MACHINE be included in and actually be 78# the first member of TARGET_SPEC_VARS. This allows other 79# variables to be considered optional, and some of the treatment 80# below relies on MACHINE being the first entry. 81# Note: TARGET_SPEC cannot contain any '.'s so the target 82# triple used by compiler folk won't work (directly anyway). 83# 84# For example: 85# 86# # Always list MACHINE first, 87# # other variables might be optional. 88# TARGET_SPEC_VARS = MACHINE TARGET_OS 89# .if ${TARGET_SPEC:Uno:M*,*} != "" 90# _tspec := ${TARGET_SPEC:S/,/ /g} 91# MACHINE := ${_tspec:[1]} 92# TARGET_OS := ${_tspec:[2]} 93# # etc. 94# # We need to stop that TARGET_SPEC affecting any submakes 95# # and deal with MACHINE=${TARGET_SPEC} in the environment. 96# TARGET_SPEC = 97# # export but do not track 98# .export-env TARGET_SPEC 99# .export ${TARGET_SPEC_VARS} 100# .for v in ${TARGET_SPEC_VARS:O:u} 101# .if empty($v) 102# .undef $v 103# .endif 104# .endfor 105# .endif 106# # make sure we know what TARGET_SPEC is 107# # as we may need it to find Makefile.depend* 108# TARGET_SPEC = ${TARGET_SPEC_VARS:@v@${$v:U}@:ts,} 109# 110# The following variables can influence the initial DIRDEPS 111# computation with regard to the TARGET_SPECs that will be 112# built. 113# Most should also be considered by init.mk 114# 115# ONLY_TARGET_SPEC_LIST 116# Defines a list of TARGET_SPECs for which the current 117# directory can be built. 118# If ALL_MACHINES is defined, we build for all the 119# TARGET_SPECs listed. 120# 121# ONLY_MACHINE_LIST 122# As for ONLY_TARGET_SPEC_LIST but only specifies 123# MACHINEs. 124# 125# NOT_TARGET_SPEC_LIST 126# A list of TARGET_SPECs for which the current 127# directory should not be built. 128# 129# NOT_MACHINE_LIST 130# A list of MACHINEs the current directory should not be 131# built for. 132# 133# _build_xtra_dirs 134# local.dirdeps.mk can add targets to this variable. 135# They will be hooked into the build, but independent of 136# any other DIRDEP. 137# 138# This allows for adding TESTS to the build, such that the build 139# if any test fails, but without the risk of introducing 140# circular dependencies. 141 142now_utc ?= ${%s:L:gmtime} 143.if !defined(start_utc) 144start_utc := ${now_utc} 145.endif 146 147.if !target(bootstrap) && (make(bootstrap) || \ 148 make(bootstrap-this) || \ 149 make(bootstrap-recurse) || \ 150 make(bootstrap-empty)) 151# disable most of below 152.MAKE.LEVEL = 1 153.endif 154 155# touch this at your peril 156_DIRDEP_USE_LEVEL?= 0 157.if ${.MAKE.LEVEL} == ${_DIRDEP_USE_LEVEL} 158# only the first instance is interested in all this 159 160.if !target(_DIRDEP_USE) 161 162# do some setup we only need once 163_CURDIR ?= ${.CURDIR} 164_OBJDIR ?= ${.OBJDIR} 165 166.if ${MAKEFILE:T} == ${.PARSEFILE} && empty(DIRDEPS) && ${.TARGETS:Uall:M*/*} != "" 167# This little trick let's us do 168# 169# mk -f dirdeps.mk some/dir.${TARGET_SPEC} 170# 171all: 172${.TARGETS:Nall}: all 173DIRDEPS := ${.TARGETS:M*[/.]*} 174# so that -DNO_DIRDEPS works 175DEP_RELDIR := ${DIRDEPS:[1]:R} 176# this will become DEP_MACHINE below 177TARGET_MACHINE := ${DIRDEPS:[1]:E:C/,.*//} 178.if ${TARGET_MACHINE:N*/*} == "" 179TARGET_MACHINE := ${MACHINE} 180.endif 181# disable DIRDEPS_CACHE as it does not like this trick 182MK_DIRDEPS_CACHE = no 183.endif 184 185# make sure we get the behavior we expect 186.MAKE.SAVE_DOLLARS = no 187 188# make sure these are empty to start with 189_DEP_TARGET_SPEC = 190 191# If TARGET_SPEC_VARS is other than just MACHINE 192# it should be set by sys.mk or similar by now. 193# TARGET_SPEC must not contain any '.'s. 194TARGET_SPEC_VARS ?= MACHINE 195# this is what we started with 196TARGET_SPEC = ${TARGET_SPEC_VARS:@v@${$v:U}@:ts,} 197# this is what we mostly use below 198DEP_TARGET_SPEC = ${TARGET_SPEC_VARS:S,^,DEP_,:@v@${$v:U}@:ts,} 199# make sure we have defaults 200.for v in ${TARGET_SPEC_VARS} 201DEP_$v ?= ${$v} 202.endfor 203 204.if ${TARGET_SPEC_VARS:[#]} > 1 205# Ok, this gets more complex (putting it mildly). 206# In order to stay sane, we need to ensure that all the build_dirs 207# we compute below are fully qualified wrt DEP_TARGET_SPEC. 208# The makefiles may only partially specify (eg. MACHINE only), 209# so we need to construct a set of modifiers to fill in the gaps. 210.if ${MAKE_VERSION} >= 20170130 211_tspec_x := ${TARGET_SPEC_VARS:range} 212.else 213# do it the hard way 214_tspec_x := ${TARGET_SPEC_VARS:[#]:@x@i=1;while [ $$i -le $x ]; do echo $$i; i=$$((i + 1)); done;@:sh} 215.endif 216# this handles unqualified entries 217M_dep_qual_fixes = C;(/[^/.,]+)$$;\1.$${DEP_TARGET_SPEC}; 218# there needs to be at least one item missing for these to make sense 219.for i in ${_tspec_x:[2..-1]} 220_tspec_m$i := ${TARGET_SPEC_VARS:[2..$i]:@w@[^,]+@:ts,} 221_tspec_a$i := ,${TARGET_SPEC_VARS:[$i..-1]:@v@$$$${DEP_$v}@:ts,} 222M_dep_qual_fixes += C;(\.${_tspec_m$i})$$;\1${_tspec_a$i}; 223.endfor 224TARGET_SPEC_VARSr := ${TARGET_SPEC_VARS:[-1..1]} 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) 268DEP_MACHINE = ${TARGET_MACHINE:U${MACHINE}} 269_DEP_TARGET_SPEC := ${DEP_TARGET_SPEC} 270.if ${.INCLUDEDFROMFILE:U:M${.MAKE.DEPENDFILE_PREFIX}*} != "" 271# record that we've read dependfile for this 272_dirdeps_checked.${_CURDIR}.${TARGET_SPEC}: 273.endif 274.endif 275 276# by now _DEP_TARGET_SPEC should be set, parse it. 277.if ${TARGET_SPEC_VARS:[#]} > 1 278# we need to parse DEP_MACHINE may or may not contain more info 279_tspec := ${_DEP_TARGET_SPEC:S/,/ /g} 280.for i in ${_tspec_x} 281DEP_${TARGET_SPEC_VARS:[$i]} := ${_tspec:[$i]} 282.endfor 283.for v in ${TARGET_SPEC_VARS:O:u} 284.if empty(DEP_$v) 285.undef DEP_$v 286.endif 287.endfor 288.else 289DEP_MACHINE := ${_DEP_TARGET_SPEC} 290.endif 291 292# reset each time through 293_build_all_dirs = 294_build_xtra_dirs = 295 296# the first time we are included the _DIRDEP_USE target will not be defined 297# we can use this as a clue to do initialization and other one time things. 298.if !target(_DIRDEP_USE) 299# make sure this target exists 300dirdeps: beforedirdeps .WAIT 301beforedirdeps: 302 303# We normally expect to be included by Makefile.depend.* 304# which sets the DEP_* macros below. 305DEP_RELDIR ?= ${RELDIR} 306 307# this can cause lots of output! 308# set to a set of glob expressions that might match RELDIR 309DEBUG_DIRDEPS ?= no 310 311# remember the initial value of DEP_RELDIR - we test for it below. 312_DEP_RELDIR := ${DEP_RELDIR} 313 314.endif 315 316# DIRDEPS_CACHE can be very handy for debugging. 317# Also if repeatedly building the same target, 318# we can avoid the overhead of re-computing the tree dependencies. 319MK_DIRDEPS_CACHE ?= no 320BUILD_DIRDEPS_CACHE ?= no 321BUILD_DIRDEPS ?= yes 322 323.if ${MK_DIRDEPS_CACHE} == "yes" 324# this is where we will cache all our work 325DIRDEPS_CACHE ?= ${_OBJDIR:tA}/dirdeps.cache${_TARGETS:U${.TARGETS}:Nall:O:u:ts-:S,/,_,g:S,^,.,:N.} 326.endif 327 328.if ${DEBUG_DIRDEPS:@x@${DEP_RELDIR:M$x}${${DEP_RELDIR}.${DEP_MACHINE}:L:M$x}@} != "" 329_debug_reldir = 1 330.else 331_debug_reldir = 0 332.endif 333.if ${DEBUG_DIRDEPS:@x@${DEP_RELDIR:M$x}${${DEP_RELDIR}.depend:L:M$x}@} != "" 334_debug_search = 1 335.else 336_debug_search = 0 337.endif 338 339# pickup customizations 340# as below you can use !target(_DIRDEP_USE) to protect things 341# which should only be done once. 342.-include <local.dirdeps.mk> 343 344.if !target(_DIRDEP_USE) 345# things we skip for host tools 346SKIP_HOSTDIR ?= 347 348NSkipHostDir = ${SKIP_HOSTDIR:N*.host*:S,$,.host*,:N.host*:S,^,${SRCTOP}/,:${M_ListToSkip}} 349 350# things we always skip 351# SKIP_DIRDEPS allows for adding entries on command line. 352SKIP_DIR += .host *.WAIT ${SKIP_DIRDEPS} 353SKIP_DIR.host += ${SKIP_HOSTDIR} 354 355DEP_SKIP_DIR = ${SKIP_DIR} \ 356 ${SKIP_DIR.${DEP_TARGET_SPEC}:U} \ 357 ${TARGET_SPEC_VARS:@v@${SKIP_DIR.${DEP_$v}:U}@} \ 358 ${SKIP_DIRDEPS.${DEP_TARGET_SPEC}:U} \ 359 ${TARGET_SPEC_VARS:@v@${SKIP_DIRDEPS.${DEP_$v}:U}@} 360 361 362NSkipDir = ${DEP_SKIP_DIR:${M_ListToSkip}} 363 364.if defined(NODIRDEPS) || defined(WITHOUT_DIRDEPS) 365NO_DIRDEPS = 366.elif defined(WITHOUT_DIRDEPS_BELOW) 367NO_DIRDEPS_BELOW = 368.endif 369 370.if defined(NO_DIRDEPS) 371# confine ourselves to the original dir and below. 372DIRDEPS_FILTER += M${_DEP_RELDIR}* 373.elif defined(NO_DIRDEPS_BELOW) 374DIRDEPS_FILTER += M${_DEP_RELDIR} 375.endif 376 377# this is what we run below 378DIRDEP_MAKE ?= ${.MAKE} 379DIRDEP_DIR ?= ${.TARGET:R} 380 381# if you want us to report load averages during build 382# DIRDEP_USE_PRELUDE += ${DIRDEP_LOADAVG_REPORT}; 383 384DIRDEP_LOADAVG_CMD ?= ${UPTIME:Uuptime} | sed 's,.*\(load\),\1,' 385DIRDEP_LOADAVG_LAST = 0 386# yes the expression here is a bit complicated, 387# the trick is to only eval ${DIRDEP_LOADAVG_LAST::=${now_utc}} 388# when we want to report. 389# Note: expr(1) will exit 1 if the expression evaluates to 0 390# hence the || true 391DIRDEP_LOADAVG_REPORT = \ 392 test -z "${"${expr ${now_utc} - ${DIRDEP_LOADAVG_INTEVAL:U60} - ${DIRDEP_LOADAVG_LAST} || true:L:sh:N-*}":?yes${DIRDEP_LOADAVG_LAST::=${now_utc}}:}" || \ 393 echo "${TRACER}`${DIRDEP_LOADAVG_CMD}`" 394 395# we suppress SUBDIR when visiting the leaves 396# we assume sys.mk will set MACHINE_ARCH 397# you can add extras to DIRDEP_USE_ENV 398# if there is no makefile in the target directory, we skip it. 399_DIRDEP_USE: .USE .MAKE 400 @for m in ${.MAKE.MAKEFILE_PREFERENCE}; do \ 401 test -s ${.TARGET:R}/$$m || continue; \ 402 echo "${TRACER}Checking ${.TARGET:S,${SRCTOP}/,,} for ${.TARGET:E} ..."; \ 403 ${DIRDEP_USE_PRELUDE} \ 404 MACHINE_ARCH= NO_SUBDIR=1 ${DIRDEP_USE_ENV} \ 405 TARGET_SPEC=${.TARGET:E} \ 406 MACHINE=${.TARGET:E} \ 407 ${DIRDEP_MAKE} -C ${DIRDEP_DIR} || exit 1; \ 408 break; \ 409 done 410 411.ifdef ALL_MACHINES 412# this is how you limit it to only the machines we have been built for 413# previously. 414.if empty(ONLY_TARGET_SPEC_LIST) && empty(ONLY_MACHINE_LIST) 415.if !empty(ALL_MACHINE_LIST) 416# ALL_MACHINE_LIST is the list of all legal machines - ignore anything else 417_machine_list != cd ${_CURDIR} && 'ls' -1 ${ALL_MACHINE_LIST:O:u:@m@${.MAKE.DEPENDFILE:T:R}.$m@} 2> /dev/null; echo 418.else 419_machine_list != 'ls' -1 ${_CURDIR}/${.MAKE.DEPENDFILE_PREFIX}.* 2> /dev/null; echo 420.endif 421_only_machines := ${_machine_list:${NIgnoreFiles:UN*.bak}:E:O:u} 422.else 423_only_machines := ${ONLY_TARGET_SPEC_LIST:U} ${ONLY_MACHINE_LIST:U} 424.endif 425 426.if empty(_only_machines) 427# we must be boot-strapping 428_only_machines := ${TARGET_MACHINE:U${ALL_MACHINE_LIST:U${DEP_MACHINE}}} 429.endif 430 431.else # ! ALL_MACHINES 432# if ONLY_TARGET_SPEC_LIST or ONLY_MACHINE_LIST is set, we are limited to that. 433# Note that ONLY_TARGET_SPEC_LIST should be fully qualified. 434# if TARGET_MACHINE is set - it is really the same as ONLY_MACHINE_LIST 435# otherwise DEP_MACHINE is it - so DEP_MACHINE will match. 436_only_machines := ${ONLY_TARGET_SPEC_LIST:U:M${DEP_MACHINE},*} 437.if empty(_only_machines) 438_only_machines := ${ONLY_MACHINE_LIST:U${TARGET_MACHINE:U${DEP_MACHINE}}:M${DEP_MACHINE}} 439.endif 440.endif 441 442.if !empty(NOT_MACHINE_LIST) 443_only_machines := ${_only_machines:${NOT_MACHINE_LIST:${M_ListToSkip}}} 444.endif 445.if !empty(NOT_TARGET_SPEC_LIST) 446# we must first qualify 447_dm := ${DEP_MACHINE} 448_only_machines := ${_only_machines:M*,*} ${_only_machines:N*,*:@DEP_MACHINE@${DEP_TARGET_SPEC}@:S,^,.,:${M_dep_qual_fixes:ts:}:O:u:S,^.,,} 449DEP_MACHINE := ${_dm} 450_only_machines := ${_only_machines:${NOT_TARGET_SPEC_LIST:${M_ListToSkip}}} 451.endif 452# clean up 453_only_machines := ${_only_machines:O:u} 454 455# make sure we have a starting place? 456DIRDEPS ?= ${RELDIR} 457.endif # target 458 459.if !defined(NO_DIRDEPS) && !defined(NO_DIRDEPS_BELOW) 460.if ${MK_DIRDEPS_CACHE} == "yes" 461 462# just ensure this exists 463build-dirdeps: 464 465M_oneperline = @x@\\${.newline} $$x@ 466 467.if ${BUILD_DIRDEPS_CACHE} == "no" 468.if !target(dirdeps-cached) 469# we do this via sub-make 470BUILD_DIRDEPS = no 471 472# ignore anything but these 473.MAKE.META.IGNORE_FILTER = M*/${.MAKE.DEPENDFILE_PREFIX}* 474 475dirdeps: dirdeps-cached 476dirdeps-cached: ${DIRDEPS_CACHE} .MAKE 477 @echo "${TRACER}Using ${DIRDEPS_CACHE}" 478 @MAKELEVEL=${.MAKE.LEVEL} ${.MAKE} -C ${_CURDIR} -f ${DIRDEPS_CACHE} \ 479 dirdeps MK_DIRDEPS_CACHE=no BUILD_DIRDEPS=no 480 481# leaf makefiles rarely work for building DIRDEPS_CACHE 482.if ${RELDIR} != "." 483BUILD_DIRDEPS_MAKEFILE ?= -f dirdeps.mk 484.endif 485 486# these should generally do 487BUILD_DIRDEPS_MAKEFILE ?= 488BUILD_DIRDEPS_TARGETS ?= ${.TARGETS} 489 490.if ${DIRDEPS_CACHE} != ${STATIC_DIRDEPS_CACHE:Uno} && ${DIRDEPS_CACHE:M${SRCTOP}/*} == "" 491# export this for dirdeps-cache-update.mk 492DYNAMIC_DIRDEPS_CACHE := ${DIRDEPS_CACHE} 493.export DYNAMIC_DIRDEPS_CACHE 494# we need the .meta file to ensure we update if 495# any of the Makefile.depend* changed. 496# We do not want to compare the command line though. 497${DIRDEPS_CACHE}: .META .NOMETA_CMP 498 +@{ echo '# Autogenerated - do NOT edit!'; echo; \ 499 echo 'BUILD_DIRDEPS=no'; echo; \ 500 echo '.include <dirdeps.mk>'; echo; \ 501 } > ${.TARGET}.new 502 +@MAKELEVEL=${.MAKE.LEVEL} DIRDEPS_CACHE=${DIRDEPS_CACHE} \ 503 DIRDEPS="${DIRDEPS}" \ 504 TARGET_SPEC=${TARGET_SPEC} \ 505 MAKEFLAGS= ${DIRDEP_CACHE_MAKE:U${.MAKE}} -C ${_CURDIR} \ 506 ${BUILD_DIRDEPS_MAKEFILE} \ 507 ${BUILD_DIRDEPS_TARGETS} BUILD_DIRDEPS_CACHE=yes \ 508 .MAKE.DEPENDFILE=.none \ 509 ${"${DEBUG_DIRDEPS:Nno}":?DEBUG_DIRDEPS='${DEBUG_DIRDEPS}':} \ 510 ${.MAKEFLAGS:tW:S,-D ,-D,g:tw:M*WITH*} \ 511 ${.MAKEFLAGS:tW:S,-d ,-d,g:tw:M-d*} \ 512 3>&1 1>&2 | sed 's,${SRCTOP},$${SRCTOP},g;s,_{,$${,g' >> ${.TARGET}.new && \ 513 mv ${.TARGET}.new ${.TARGET} 514 515.endif 516.endif 517.elif !target(_count_dirdeps) 518# we want to capture the dirdeps count in the cache 519.END: _count_dirdeps 520_count_dirdeps: .NOMETA 521 @{ echo; echo '.info $${.newline}$${TRACER}Makefiles read: total=${.MAKE.MAKEFILES:[#]} depend=${.MAKE.MAKEFILES:M*depend*:[#]} dirdeps=${.ALLTARGETS:M${SRCTOP}*:O:u:[#]} ${DIRDEP_INFO_XTRAS}'; } >&3 522 523.endif 524.elif !make(dirdeps) && !target(_count_dirdeps) 525beforedirdeps: _count_dirdeps 526_count_dirdeps: .NOMETA 527 @echo "${TRACER}Makefiles read: total=${.MAKE.MAKEFILES:[#]} depend=${.MAKE.MAKEFILES:M*depend*:[#]} dirdeps=${.ALLTARGETS:M${SRCTOP}*:O:u:[#]} ${DIRDEP_INFO_XTRAS} seconds=`expr ${now_utc} - ${start_utc}`" 528 529.endif 530.endif 531 532.if ${BUILD_DIRDEPS} == "yes" 533 534# the rest is done repeatedly for every Makefile.depend we read. 535# if we are anything but the original dir we care only about the 536# machine type we were included for.. 537 538.if ${DEP_RELDIR} == "." 539_this_dir := ${SRCTOP} 540.else 541_this_dir := ${SRCTOP}/${DEP_RELDIR} 542.endif 543 544# on rare occasions, there can be a need for extra help 545_dep_hack := ${_this_dir}/${.MAKE.DEPENDFILE_PREFIX}.inc 546.-include <${_dep_hack}> 547.-include <${_dep_hack:R}.options> 548 549.if ${DEP_RELDIR} != ${_DEP_RELDIR} || ${DEP_TARGET_SPEC} != ${TARGET_SPEC} 550# this should be all 551_machines := ${DEP_MACHINE} 552.else 553# this is the machine list we actually use below 554_machines := ${_only_machines} 555 556.if defined(HOSTPROG) || ${DEP_MACHINE:Nhost*} == "" 557# we need to build this guy's dependencies for host as well. 558.if ${DEP_MACHINE:Nhost*} == "" 559_machines += ${DEP_MACHINE} 560.else 561_machines += host 562.endif 563.endif 564 565_machines := ${_machines:O:u} 566.endif 567 568.if ${TARGET_SPEC_VARS:[#]} > 1 569# we need to tweak _machines 570_dm := ${DEP_MACHINE} 571# apply the same filtering that we do when qualifying DIRDEPS. 572# M_dep_qual_fixes expects .${MACHINE}* so add (and remove) '.' 573# Again we expect that any already qualified machines are fully qualified. 574_machines := ${_machines:M*,*} ${_machines:N*,*:@DEP_MACHINE@${DEP_TARGET_SPEC}@:S,^,.,:${M_dep_qual_fixes:ts:}:O:u:S,^.,,} 575DEP_MACHINE := ${_dm} 576_machines := ${_machines:O:u} 577.endif 578 579# reset each time through 580_build_dirs = 581 582.if ${DEP_RELDIR} == ${_DEP_RELDIR} 583# pickup other machines for this dir if necessary 584_build_dirs += ${_machines:@m@${_CURDIR}.$m@} 585.endif 586 587.if ${_debug_reldir} 588.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: DIRDEPS='${DIRDEPS}' 589.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: _machines='${_machines}' 590.endif 591 592.if !empty(DIRDEPS) 593# these we reset each time through as they can depend on DEP_MACHINE 594DEP_DIRDEPS_FILTER = \ 595 ${DIRDEPS_FILTER.${DEP_TARGET_SPEC}:U} \ 596 ${TARGET_SPEC_VARS:@v@${DIRDEPS_FILTER.${DEP_$v}:U}@} \ 597 ${DIRDEPS_FILTER:U} 598.if empty(DEP_DIRDEPS_FILTER) 599# something harmless 600DEP_DIRDEPS_FILTER = U 601.endif 602 603# this is what we start with 604__depdirs := ${DIRDEPS:${NSkipDir}:${DEP_DIRDEPS_FILTER:ts:}:C,//+,/,g:O:u:@d@${SRCTOP}/$d@} 605 606# some entries may be qualified with .<machine> 607# the :M*/*/*.* just tries to limit the dirs we check to likely ones. 608# the ${d:E:M*/*} ensures we don't consider junos/usr.sbin/mgd 609__qual_depdirs := ${__depdirs:M*/*/*.*:@d@${exists($d):?:${"${d:E:M*/*}":?:${exists(${d:R}):?$d:}}}@} 610__unqual_depdirs := ${__depdirs:${__qual_depdirs:Uno:${M_ListToSkip}}} 611 612.if ${DEP_RELDIR} == ${_DEP_RELDIR} 613# if it was called out - we likely need it. 614__hostdpadd := ${DPADD:U.:M${HOST_OBJTOP}/*:S,${HOST_OBJTOP}/,,:H:${NSkipDir}:${DIRDEPS_FILTER:ts:}:S,$,.host,:N.*:@d@${SRCTOP}/$d@} \ 615 ${DPADD:U.:M${HOST_OBJTOP32:Uno}/*:S,${HOST_OBJTOP32:Uno}/,,:H:${NSkipDir}:${DIRDEPS_FILTER:ts:}:S,$,.host32,:N.*:@d@${SRCTOP}/$d@} 616__qual_depdirs += ${__hostdpadd} 617.endif 618 619.if ${_debug_reldir} 620.info DEP_DIRDEPS_FILTER=${DEP_DIRDEPS_FILTER:ts:} 621.info depdirs=${__depdirs} 622.info qualified=${__qual_depdirs} 623.info unqualified=${__unqual_depdirs} 624.endif 625 626# _build_dirs is what we will feed to _DIRDEP_USE 627_build_dirs += \ 628 ${__qual_depdirs:M*.host:${NSkipHostDir}:N.host} \ 629 ${__qual_depdirs:N*.host} \ 630 ${_machines:Mhost*:@m@${__unqual_depdirs:@d@$d.$m@}@:${NSkipHostDir}:N.host} \ 631 ${_machines:Nhost*:@m@${__unqual_depdirs:@d@$d.$m@}@} 632 633# qualify everything now 634_build_dirs := ${_build_dirs:${M_dep_qual_fixes:ts:}:O:u} 635 636.endif # empty DIRDEPS 637 638_build_all_dirs += ${_build_dirs} ${_build_xtra_dirs} 639_build_all_dirs := ${_build_all_dirs:O:u} 640 641# Normally if doing make -V something, 642# we do not want to waste time chasing DIRDEPS 643# but if we want to count the number of Makefile.depend* read, we do. 644.if ${.MAKEFLAGS:M-V${_V_READ_DIRDEPS}} == "" 645.if !empty(_build_all_dirs) 646.if ${BUILD_DIRDEPS_CACHE} == "yes" 647x!= echo; { echo; echo '\# ${DEP_RELDIR}.${DEP_TARGET_SPEC}'; } >&3 648# guard against _new_dirdeps being too big for a single command line 649_new_dirdeps := ${_build_all_dirs:@x@${target($x):?:$x}@} 650.export _build_xtra_dirs _new_dirdeps 651.if !empty(DEP_EXPORT_VARS) 652# Discouraged, but there are always exceptions. 653# Handle it here rather than explain how. 654x!= echo; { echo; ${DEP_EXPORT_VARS:@v@echo '$v=${$v}';@} echo '.export ${DEP_EXPORT_VARS}'; echo; } >&3 655.endif 656.else 657# this makes it all happen 658dirdeps: ${_build_all_dirs} 659.endif 660${_build_all_dirs}: _DIRDEP_USE 661 662.if ${_debug_reldir} 663.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: needs: ${_build_dirs} 664.endif 665 666.if !empty(DEP_EXPORT_VARS) 667.export ${DEP_EXPORT_VARS} 668DEP_EXPORT_VARS= 669.endif 670 671# this builds the dependency graph 672.for m in ${_machines} 673.if ${BUILD_DIRDEPS_CACHE} == "yes" && !empty(_build_dirs) 674x!= echo; { echo; echo 'DIRDEPS.${_this_dir}.$m = \'; } >&3 675_cache_deps = 676.endif 677# it would be nice to do :N${.TARGET} 678.if !empty(__qual_depdirs) 679.for q in ${__qual_depdirs:${M_dep_qual_fixes:ts:}:E:O:u:N$m} 680.if ${_debug_reldir} || ${DEBUG_DIRDEPS:@x@${${DEP_RELDIR}.$m:L:M$x}${${DEP_RELDIR}.$q:L:M$x}@} != "" 681.info ${DEP_RELDIR}.$m: graph: ${_build_dirs:M*.$q} 682.endif 683.if ${BUILD_DIRDEPS_CACHE} == "yes" 684_cache_deps += ${_build_dirs:M*.$q} 685.else 686${_this_dir}.$m: ${_build_dirs:M*.$q} 687.endif 688.endfor 689.endif 690.if ${_debug_reldir} 691.info ${DEP_RELDIR}.$m: graph: ${_build_dirs:M*.$m:N${_this_dir}.$m} 692.endif 693.if ${BUILD_DIRDEPS_CACHE} == "yes" 694.if !empty(_build_dirs) 695_cache_deps += ${_build_dirs:M*.$m:N${_this_dir}.$m} 696.if !empty(_cache_deps) 697.export _cache_deps 698x!= echo; for x in $$_cache_deps; do echo " $$x \\"; done >&3 699.endif 700x!= echo; { echo; echo '${_this_dir}.$m: $${DIRDEPS.${_this_dir}.$m}'; \ 701 echo; echo 'dirdeps: ${_this_dir}.$m \'; \ 702 for x in $$_build_xtra_dirs; do echo " $$x \\"; done; \ 703 echo; for x in $$_new_dirdeps; do echo "$$x: _DIRDEP_USE"; done; } >&3 704.endif 705.else 706${_this_dir}.$m: ${_build_dirs:M*.$m:N${_this_dir}.$m} 707.endif 708.endfor 709 710.endif 711 712# Now find more dependencies - and recurse. 713.for d in ${_build_all_dirs} 714.if !target(_dirdeps_checked.$d) 715# once only 716_dirdeps_checked.$d: 717.if ${_debug_search} 718.info checking $d 719.endif 720# Note: _build_all_dirs is fully qualifed so d:R is always the directory 721.if exists(${d:R}) 722# we pass _DEP_TARGET_SPEC to tell the next step what we want 723_DEP_TARGET_SPEC := ${d:E} 724# some makefiles may still look at this 725_DEP_MACHINE := ${d:E:C/,.*//} 726# set these too in case Makefile.depend* uses them 727.if ${TARGET_SPEC_VARS:[#]} > 1 728_dtspec := ${_DEP_TARGET_SPEC:S/,/ /g} 729.for i in ${_tspec_x} 730DEP_${TARGET_SPEC_VARS:[$i]} := ${_dtspec:[$i]} 731.endfor 732.else 733DEP_MACHINE := ${_DEP_MACHINE} 734.endif 735# Warning: there is an assumption here that MACHINE is always 736# the first entry in TARGET_SPEC_VARS. 737# If TARGET_SPEC and MACHINE are insufficient, you have a problem. 738_m := ${.MAKE.DEPENDFILE_PREFERENCE:T:S;${TARGET_SPEC}$;${d:E};:S;${MACHINE};${d:E:C/,.*//};:@m@${exists(${d:R}/$m):?${d:R}/$m:}@:[1]} 739.if !empty(_m) 740# M_dep_qual_fixes isn't geared to Makefile.depend 741_qm := ${_m:C;(\.depend)$;\1.${d:E};:${M_dep_qual_fixes:ts:}} 742.if ${_debug_search} 743.info Looking for ${_qm} 744.endif 745# set this "just in case" 746# we can skip :tA since we computed the path above 747DEP_RELDIR := ${_m:H:S,${SRCTOP}/,,} 748# and reset this 749DIRDEPS = 750.if ${_debug_reldir} && ${_qm} != ${_m} 751.info loading ${_m} for ${d:E} 752.endif 753.include <${_m}> 754.else 755.-include <local.dirdeps-missing.mk> 756.endif 757.endif 758.endif 759.endfor 760 761.endif # -V 762.endif # BUILD_DIRDEPS 763 764.elif ${.MAKE.LEVEL} > 42 765.error You should have stopped recursing by now. 766.else 767# we are building something 768DEP_RELDIR := ${RELDIR} 769_DEP_RELDIR := ${RELDIR} 770# Since we are/should be included by .MAKE.DEPENDFILE 771# This is a final opportunity to add/hook global rules. 772.-include <local.dirdeps-build.mk> 773 774# skip _reldir_{finish,failed} if not included from Makefile.depend* 775# or not in meta mode 776.if !defined(WITHOUT_META_STATS) && ${.INCLUDEDFROMFILE:U:M${.MAKE.DEPENDFILE_PREFIX}*} != "" && ${.MAKE.MODE:Mmeta} != "" 777 778meta_stats= meta=${empty(.MAKE.META.FILES):?0:${.MAKE.META.FILES:[#]}} \ 779 created=${empty(.MAKE.META.CREATED):?0:${.MAKE.META.CREATED:[#]}} 780 781.if !target(_reldir_finish) 782.END: _reldir_finish 783_reldir_finish: .NOMETA 784 @echo "${TRACER}Finished ${RELDIR}.${TARGET_SPEC} seconds=$$(( ${now_utc} - ${start_utc} )) ${meta_stats}" 785.endif 786 787.if !target(_reldir_failed) 788.ERROR: _reldir_failed 789_reldir_failed: .NOMETA 790 @echo "${TRACER}Failed ${RELDIR}.${TARGET_SPEC} seconds=$$(( ${now_utc} - ${start_utc} )) ${meta_stats}" 791.endif 792 793.endif 794 795# pickup local dependencies 796.if ${MAKE_VERSION} < 20160220 797.-include <.depend> 798.else 799.dinclude <.depend> 800.endif 801.endif 802 803# bootstrapping new dependencies made easy? 804.if !target(bootstrap) && (make(bootstrap) || \ 805 make(bootstrap-this) || \ 806 make(bootstrap-recurse) || \ 807 make(bootstrap-empty)) 808 809# if we are bootstrapping create the default 810_want = ${.CURDIR}/${.MAKE.DEPENDFILE_DEFAULT:T} 811 812.if exists(${_want}) 813# stop here 814${.TARGETS:Mboot*}: 815.elif !make(bootstrap-empty) 816# find a Makefile.depend to use as _src 817_src != cd ${.CURDIR} && for m in ${.MAKE.DEPENDFILE_PREFERENCE:T:S,${MACHINE},*,}; do test -s $$m || continue; echo $$m; break; done; echo 818.if empty(_src) 819.error cannot find any of ${.MAKE.DEPENDFILE_PREFERENCE:T}${.newline}Use: bootstrap-empty 820.endif 821 822_src?= ${.MAKE.DEPENDFILE} 823 824.MAKE.DEPENDFILE_BOOTSTRAP_SED+= -e 's/${_src:E:C/,.*//}/${MACHINE}/g' 825 826# just create Makefile.depend* for this dir 827bootstrap-this: .NOTMAIN 828 @echo Bootstrapping ${RELDIR}/${_want:T} from ${_src:T}; \ 829 echo You need to build ${RELDIR} to correctly populate it. 830.if ${_src:T} != ${.MAKE.DEPENDFILE_PREFIX:T} 831 (cd ${.CURDIR} && sed ${.MAKE.DEPENDFILE_BOOTSTRAP_SED} ${_src} > ${_want:T}) 832.else 833 cp ${.CURDIR}/${_src:T} ${_want} 834.endif 835 836# create Makefile.depend* for this dir and its dependencies 837bootstrap: bootstrap-recurse 838bootstrap-recurse: bootstrap-this 839 840_mf := ${.PARSEFILE} 841bootstrap-recurse: .NOTMAIN .MAKE 842 @cd ${SRCTOP} && \ 843 for d in `cd ${RELDIR} && ${.MAKE} -B -f ${"${.MAKEFLAGS:M-n}":?${_src}:${.MAKE.DEPENDFILE:T}} -V DIRDEPS`; do \ 844 test -d $$d || d=$${d%.*}; \ 845 test -d $$d || continue; \ 846 echo "Checking $$d for bootstrap ..."; \ 847 (cd $$d && ${.MAKE} -f ${_mf} bootstrap-recurse); \ 848 done 849 850.endif 851 852# create an empty Makefile.depend* to get the ball rolling. 853bootstrap-empty: .NOTMAIN .NOMETA 854 @echo Creating empty ${RELDIR}/${_want:T}; \ 855 echo You need to build ${RELDIR} to correctly populate it. 856 @{ echo DIRDEPS=; echo ".include <dirdeps.mk>"; } > ${_want} 857 858.endif 859