1# $Id: dirdeps.mk,v 1.130 2020/11/02 00:34:30 sjg Exp $ 2 3# Copyright (c) 2010-2020, 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) 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_build_xtra_dirs = 310 311# the first time we are included the _DIRDEP_USE target will not be defined 312# we can use this as a clue to do initialization and other one time things. 313.if !target(_DIRDEP_USE) 314# make sure this target exists 315dirdeps: beforedirdeps .WAIT 316beforedirdeps: 317 318# We normally expect to be included by Makefile.depend.* 319# which sets the DEP_* macros below. 320DEP_RELDIR ?= ${RELDIR} 321 322# this can cause lots of output! 323# set to a set of glob expressions that might match RELDIR 324DEBUG_DIRDEPS ?= no 325 326# remember the initial value of DEP_RELDIR - we test for it below. 327_DEP_RELDIR := ${DEP_RELDIR} 328 329.endif 330 331# DIRDEPS_CACHE can be very handy for debugging. 332# Also if repeatedly building the same target, 333# we can avoid the overhead of re-computing the tree dependencies. 334MK_DIRDEPS_CACHE ?= no 335BUILD_DIRDEPS_CACHE ?= no 336BUILD_DIRDEPS ?= yes 337 338.if ${MK_DIRDEPS_CACHE} == "yes" 339# this is where we will cache all our work 340DIRDEPS_CACHE ?= ${_OBJDIR:tA}/dirdeps.cache${_TARGETS:U${.TARGETS}:Nall:O:u:ts-:S,/,_,g:S,^,.,:N.} 341.endif 342 343.if ${DEBUG_DIRDEPS:@x@${DEP_RELDIR:M$x}${${DEP_RELDIR}.${DEP_MACHINE}:L:M$x}@} != "" 344_debug_reldir = 1 345.else 346_debug_reldir = 0 347.endif 348.if ${DEBUG_DIRDEPS:@x@${DEP_RELDIR:M$x}${${DEP_RELDIR}.depend:L:M$x}@} != "" 349_debug_search = 1 350.else 351_debug_search = 0 352.endif 353 354# pickup customizations 355# as below you can use !target(_DIRDEP_USE) to protect things 356# which should only be done once. 357.-include <local.dirdeps.mk> 358 359.if !target(_DIRDEP_USE) 360# things we skip for host tools 361SKIP_HOSTDIR ?= 362 363NSkipHostDir = ${SKIP_HOSTDIR:N*.host*:S,$,.host*,:N.host*:S,^,${SRCTOP}/,:${M_ListToSkip}} 364 365# things we always skip 366# SKIP_DIRDEPS allows for adding entries on command line. 367SKIP_DIR += .host *.WAIT ${SKIP_DIRDEPS} 368SKIP_DIR.host += ${SKIP_HOSTDIR} 369 370DEP_SKIP_DIR = ${SKIP_DIR} \ 371 ${SKIP_DIR.${DEP_TARGET_SPEC}:U} \ 372 ${TARGET_SPEC_VARS:@v@${SKIP_DIR.${DEP_$v}:U}@} \ 373 ${SKIP_DIRDEPS.${DEP_TARGET_SPEC}:U} \ 374 ${TARGET_SPEC_VARS:@v@${SKIP_DIRDEPS.${DEP_$v}:U}@} 375 376 377NSkipDir = ${DEP_SKIP_DIR:${M_ListToSkip}} 378 379.if defined(NODIRDEPS) || defined(WITHOUT_DIRDEPS) 380NO_DIRDEPS = 381.elif defined(WITHOUT_DIRDEPS_BELOW) 382NO_DIRDEPS_BELOW = 383.endif 384 385.if defined(NO_DIRDEPS) 386# confine ourselves to the original dir and below. 387DIRDEPS_FILTER += M${_DEP_RELDIR}* 388.elif defined(NO_DIRDEPS_BELOW) 389DIRDEPS_FILTER += M${_DEP_RELDIR} 390.endif 391 392# this is what we run below 393DIRDEP_MAKE ?= ${.MAKE} 394DIRDEP_DIR ?= ${.TARGET:R} 395 396# if you want us to report load averages during build 397# DIRDEP_USE_PRELUDE += ${DIRDEP_LOADAVG_REPORT}; 398 399DIRDEP_LOADAVG_CMD ?= ${UPTIME:Uuptime} | sed 's,.*\(load\),\1,' 400DIRDEP_LOADAVG_LAST = 0 401# yes the expression here is a bit complicated, 402# the trick is to only eval ${DIRDEP_LOADAVG_LAST::=${now_utc}} 403# when we want to report. 404DIRDEP_LOADAVG_REPORT = \ 405 test -z "${"${expr ${now_utc} - ${DIRDEP_LOADAVG_INTEVAL:U60} - ${DIRDEP_LOADAVG_LAST}:L:sh:N-*}":?yes${DIRDEP_LOADAVG_LAST::=${now_utc}}:}" || \ 406 echo "${TRACER}`${DIRDEP_LOADAVG_CMD}`" 407 408# we suppress SUBDIR when visiting the leaves 409# we assume sys.mk will set MACHINE_ARCH 410# you can add extras to DIRDEP_USE_ENV 411# if there is no makefile in the target directory, we skip it. 412_DIRDEP_USE: .USE .MAKE 413 @for m in ${.MAKE.MAKEFILE_PREFERENCE}; do \ 414 test -s ${.TARGET:R}/$$m || continue; \ 415 echo "${TRACER}Checking ${.TARGET:S,${SRCTOP}/,,} for ${.TARGET:E} ..."; \ 416 ${DIRDEP_USE_PRELUDE} \ 417 MACHINE_ARCH= NO_SUBDIR=1 ${DIRDEP_USE_ENV} \ 418 TARGET_SPEC=${.TARGET:E} \ 419 MACHINE=${.TARGET:E} \ 420 ${DIRDEP_MAKE} -C ${DIRDEP_DIR} || exit 1; \ 421 break; \ 422 done 423 424.ifdef ALL_MACHINES 425# this is how you limit it to only the machines we have been built for 426# previously. 427.if empty(ONLY_TARGET_SPEC_LIST) && empty(ONLY_MACHINE_LIST) 428.if !empty(ALL_MACHINE_LIST) 429# ALL_MACHINE_LIST is the list of all legal machines - ignore anything else 430_machine_list != cd ${_CURDIR} && 'ls' -1 ${ALL_MACHINE_LIST:O:u:@m@${.MAKE.DEPENDFILE:T:R}.$m@} 2> /dev/null; echo 431.else 432_machine_list != 'ls' -1 ${_CURDIR}/${.MAKE.DEPENDFILE_PREFIX}.* 2> /dev/null; echo 433.endif 434_only_machines := ${_machine_list:${NIgnoreFiles:UN*.bak}:E:O:u} 435.else 436_only_machines := ${ONLY_TARGET_SPEC_LIST:U} ${ONLY_MACHINE_LIST:U} 437.endif 438 439.if empty(_only_machines) 440# we must be boot-strapping 441_only_machines := ${TARGET_MACHINE:U${ALL_MACHINE_LIST:U${DEP_MACHINE}}} 442.endif 443 444.else # ! ALL_MACHINES 445# if ONLY_TARGET_SPEC_LIST or ONLY_MACHINE_LIST is set, we are limited to that. 446# Note that ONLY_TARGET_SPEC_LIST should be fully qualified. 447# if TARGET_MACHINE is set - it is really the same as ONLY_MACHINE_LIST 448# otherwise DEP_MACHINE is it - so DEP_MACHINE will match. 449_only_machines := ${ONLY_TARGET_SPEC_LIST:U:M${DEP_MACHINE},*} 450.if empty(_only_machines) 451_only_machines := ${ONLY_MACHINE_LIST:U${TARGET_MACHINE:U${DEP_MACHINE}}:M${DEP_MACHINE}} 452.endif 453.endif 454 455.if !empty(NOT_MACHINE_LIST) 456_only_machines := ${_only_machines:${NOT_MACHINE_LIST:${M_ListToSkip}}} 457.endif 458.if !empty(NOT_TARGET_SPEC_LIST) 459# we must first qualify 460_dm := ${DEP_MACHINE} 461_only_machines := ${_only_machines:M*,*} ${_only_machines:N*,*:@DEP_MACHINE@${DEP_TARGET_SPEC}@:S,^,.,:${M_dep_qual_fixes:ts:}:O:u:S,^.,,} 462DEP_MACHINE := ${_dm} 463_only_machines := ${_only_machines:${NOT_TARGET_SPEC_LIST:${M_ListToSkip}}} 464.endif 465# clean up 466_only_machines := ${_only_machines:O:u} 467 468# make sure we have a starting place? 469DIRDEPS ?= ${RELDIR} 470.endif # target 471 472.if !defined(NO_DIRDEPS) && !defined(NO_DIRDEPS_BELOW) 473.if ${MK_DIRDEPS_CACHE} == "yes" 474 475# just ensure this exists 476build-dirdeps: 477 478M_oneperline = @x@\\${.newline} $$x@ 479 480.if ${BUILD_DIRDEPS_CACHE} == "no" 481.if !target(dirdeps-cached) 482# we do this via sub-make 483BUILD_DIRDEPS = no 484 485# ignore anything but these 486.MAKE.META.IGNORE_FILTER = M*/${.MAKE.DEPENDFILE_PREFIX}* 487 488dirdeps: dirdeps-cached 489dirdeps-cached: ${DIRDEPS_CACHE} .MAKE 490 @echo "${TRACER}Using ${DIRDEPS_CACHE}" 491 @MAKELEVEL=${.MAKE.LEVEL} ${.MAKE} -C ${_CURDIR} -f ${DIRDEPS_CACHE} \ 492 dirdeps MK_DIRDEPS_CACHE=no BUILD_DIRDEPS=no 493 494# leaf makefiles rarely work for building DIRDEPS_CACHE 495.if ${RELDIR} != "." 496BUILD_DIRDEPS_MAKEFILE ?= -f dirdeps.mk 497.endif 498 499# these should generally do 500BUILD_DIRDEPS_MAKEFILE ?= 501BUILD_DIRDEPS_TARGETS ?= ${.TARGETS} 502 503.if ${DIRDEPS_CACHE} != ${STATIC_DIRDEPS_CACHE:Uno} && ${DIRDEPS_CACHE:M${SRCTOP}/*} == "" 504# export this for dirdeps-cache-update.mk 505DYNAMIC_DIRDEPS_CACHE := ${DIRDEPS_CACHE} 506.export DYNAMIC_DIRDEPS_CACHE 507# we need the .meta file to ensure we update if 508# any of the Makefile.depend* changed. 509# We do not want to compare the command line though. 510${DIRDEPS_CACHE}: .META .NOMETA_CMP 511 +@{ echo '# Autogenerated - do NOT edit!'; echo; \ 512 echo 'BUILD_DIRDEPS=no'; echo; \ 513 echo '.include <dirdeps.mk>'; echo; \ 514 } > ${.TARGET}.new 515 +@MAKELEVEL=${.MAKE.LEVEL} DIRDEPS_CACHE=${DIRDEPS_CACHE} \ 516 DIRDEPS="${DIRDEPS}" \ 517 TARGET_SPEC=${TARGET_SPEC} \ 518 MAKEFLAGS= ${DIRDEP_CACHE_MAKE:U${.MAKE}} -C ${_CURDIR} \ 519 ${BUILD_DIRDEPS_MAKEFILE} \ 520 ${BUILD_DIRDEPS_TARGETS} BUILD_DIRDEPS_CACHE=yes \ 521 .MAKE.DEPENDFILE=.none \ 522 ${"${DEBUG_DIRDEPS:Nno}":?DEBUG_DIRDEPS='${DEBUG_DIRDEPS}':} \ 523 ${.MAKEFLAGS:tW:S,-D ,-D,g:tw:M*WITH*} \ 524 ${.MAKEFLAGS:tW:S,-d ,-d,g:tw:M-d*} \ 525 3>&1 1>&2 | sed 's,${SRCTOP},$${SRCTOP},g;s,_{,$${,g' >> ${.TARGET}.new && \ 526 mv ${.TARGET}.new ${.TARGET} 527 528.endif 529.endif 530.elif !target(_count_dirdeps) 531# we want to capture the dirdeps count in the cache 532.END: _count_dirdeps 533_count_dirdeps: .NOMETA 534 @{ echo; echo '.info $${.newline}$${TRACER}Makefiles read: total=${.MAKE.MAKEFILES:[#]} depend=${.MAKE.MAKEFILES:M*depend*:[#]} dirdeps=${.ALLTARGETS:M${SRCTOP}*:O:u:[#]} ${DIRDEP_INFO_XTRAS}'; } >&3 535 536.endif 537.elif !make(dirdeps) && !target(_count_dirdeps) 538beforedirdeps: _count_dirdeps 539_count_dirdeps: .NOMETA 540 @echo "${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}`" 541 542.endif 543.endif 544 545.if ${BUILD_DIRDEPS} == "yes" 546 547# the rest is done repeatedly for every Makefile.depend we read. 548# if we are anything but the original dir we care only about the 549# machine type we were included for.. 550 551.if ${DEP_RELDIR} == "." 552_this_dir := ${SRCTOP} 553.else 554_this_dir := ${SRCTOP}/${DEP_RELDIR} 555.endif 556 557# on rare occasions, there can be a need for extra help 558_dep_hack := ${_this_dir}/${.MAKE.DEPENDFILE_PREFIX}.inc 559.-include <${_dep_hack}> 560.-include <${_dep_hack:R}.options> 561 562.if ${DEP_RELDIR} != ${_DEP_RELDIR} || ${DEP_TARGET_SPEC} != ${TARGET_SPEC} 563# this should be all 564_machines := ${DEP_MACHINE} 565.else 566# this is the machine list we actually use below 567_machines := ${_only_machines} 568 569.if defined(HOSTPROG) || ${DEP_MACHINE:Nhost*} == "" 570# we need to build this guy's dependencies for host as well. 571.if ${DEP_MACHINE:Nhost*} == "" 572_machines += ${DEP_MACHINE} 573.else 574_machines += host 575.endif 576.endif 577 578_machines := ${_machines:O:u} 579.endif 580 581.if ${TARGET_SPEC_VARS:[#]} > 1 582# we need to tweak _machines 583_dm := ${DEP_MACHINE} 584# apply the same filtering that we do when qualifying DIRDEPS. 585# M_dep_qual_fixes expects .${MACHINE}* so add (and remove) '.' 586# Again we expect that any already qualified machines are fully qualified. 587_machines := ${_machines:M*,*} ${_machines:N*,*:@DEP_MACHINE@${DEP_TARGET_SPEC}@:S,^,.,:${M_dep_qual_fixes:ts:}:O:u:S,^.,,} 588DEP_MACHINE := ${_dm} 589_machines := ${_machines:O:u} 590.endif 591 592# reset each time through 593_build_dirs = 594 595.if ${DEP_RELDIR} == ${_DEP_RELDIR} 596# pickup other machines for this dir if necessary 597_build_dirs += ${_machines:@m@${_CURDIR}.$m@} 598.endif 599 600.if ${_debug_reldir} 601.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: DIRDEPS='${DIRDEPS}' 602.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: _machines='${_machines}' 603.endif 604 605.if !empty(DIRDEPS) 606# these we reset each time through as they can depend on DEP_MACHINE 607DEP_DIRDEPS_FILTER = \ 608 ${DIRDEPS_FILTER.${DEP_TARGET_SPEC}:U} \ 609 ${TARGET_SPEC_VARS:@v@${DIRDEPS_FILTER.${DEP_$v}:U}@} \ 610 ${DIRDEPS_FILTER:U} 611.if empty(DEP_DIRDEPS_FILTER) 612# something harmless 613DEP_DIRDEPS_FILTER = U 614.endif 615 616# this is what we start with 617__depdirs := ${DIRDEPS:${NSkipDir}:${DEP_DIRDEPS_FILTER:ts:}:C,//+,/,g:O:u:@d@${SRCTOP}/$d@} 618 619# some entries may be qualified with .<machine> 620# the :M*/*/*.* just tries to limit the dirs we check to likely ones. 621# the ${d:E:M*/*} ensures we don't consider junos/usr.sbin/mgd 622__qual_depdirs := ${__depdirs:M*/*/*.*:@d@${exists($d):?:${"${d:E:M*/*}":?:${exists(${d:R}):?$d:}}}@} 623__unqual_depdirs := ${__depdirs:${__qual_depdirs:Uno:${M_ListToSkip}}} 624 625.if ${DEP_RELDIR} == ${_DEP_RELDIR} 626# if it was called out - we likely need it. 627__hostdpadd := ${DPADD:U.:M${HOST_OBJTOP}/*:S,${HOST_OBJTOP}/,,:H:${NSkipDir}:${DIRDEPS_FILTER:ts:}:S,$,.host,:N.*:@d@${SRCTOP}/$d@} \ 628 ${DPADD:U.:M${HOST_OBJTOP32:Uno}/*:S,${HOST_OBJTOP32:Uno}/,,:H:${NSkipDir}:${DIRDEPS_FILTER:ts:}:S,$,.host32,:N.*:@d@${SRCTOP}/$d@} 629__qual_depdirs += ${__hostdpadd} 630.endif 631 632.if ${_debug_reldir} 633.info DEP_DIRDEPS_FILTER=${DEP_DIRDEPS_FILTER:ts:} 634.info depdirs=${__depdirs} 635.info qualified=${__qual_depdirs} 636.info unqualified=${__unqual_depdirs} 637.endif 638 639# _build_dirs is what we will feed to _DIRDEP_USE 640_build_dirs += \ 641 ${__qual_depdirs:M*.host:${NSkipHostDir}:N.host} \ 642 ${__qual_depdirs:N*.host} \ 643 ${_machines:Mhost*:@m@${__unqual_depdirs:@d@$d.$m@}@:${NSkipHostDir}:N.host} \ 644 ${_machines:Nhost*:@m@${__unqual_depdirs:@d@$d.$m@}@} 645 646# qualify everything now 647_build_dirs := ${_build_dirs:${M_dep_qual_fixes:ts:}:O:u} 648 649.endif # empty DIRDEPS 650 651_build_all_dirs += ${_build_dirs} ${_build_xtra_dirs} 652_build_all_dirs := ${_build_all_dirs:O:u} 653 654# Normally if doing make -V something, 655# we do not want to waste time chasing DIRDEPS 656# but if we want to count the number of Makefile.depend* read, we do. 657.if ${.MAKEFLAGS:M-V${_V_READ_DIRDEPS}} == "" 658.if !empty(_build_all_dirs) 659.if ${BUILD_DIRDEPS_CACHE} == "yes" 660x!= echo; { echo; echo '\# ${DEP_RELDIR}.${DEP_TARGET_SPEC}'; } >&3 661# guard against _new_dirdeps being too big for a single command line 662_new_dirdeps := ${_build_all_dirs:@x@${target($x):?:$x}@} 663.export _build_xtra_dirs _new_dirdeps 664.if !empty(DEP_EXPORT_VARS) 665# Discouraged, but there are always exceptions. 666# Handle it here rather than explain how. 667x!= echo; { echo; ${DEP_EXPORT_VARS:@v@echo '$v=${$v}';@} echo '.export ${DEP_EXPORT_VARS}'; echo; } >&3 668.endif 669.else 670# this makes it all happen 671dirdeps: ${_build_all_dirs} 672.endif 673${_build_all_dirs}: _DIRDEP_USE 674 675.if ${_debug_reldir} 676.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: needs: ${_build_dirs} 677.endif 678 679.if !empty(DEP_EXPORT_VARS) 680.export ${DEP_EXPORT_VARS} 681DEP_EXPORT_VARS= 682.endif 683 684# this builds the dependency graph 685.for m in ${_machines} 686.if ${BUILD_DIRDEPS_CACHE} == "yes" && !empty(_build_dirs) 687x!= echo; { echo; echo 'DIRDEPS.${_this_dir}.$m = \'; } >&3 688_cache_deps = 689.endif 690# it would be nice to do :N${.TARGET} 691.if !empty(__qual_depdirs) 692.for q in ${__qual_depdirs:${M_dep_qual_fixes:ts:}:E:O:u:N$m} 693.if ${_debug_reldir} || ${DEBUG_DIRDEPS:@x@${${DEP_RELDIR}.$m:L:M$x}${${DEP_RELDIR}.$q:L:M$x}@} != "" 694.info ${DEP_RELDIR}.$m: graph: ${_build_dirs:M*.$q} 695.endif 696.if ${BUILD_DIRDEPS_CACHE} == "yes" 697_cache_deps += ${_build_dirs:M*.$q} 698.else 699${_this_dir}.$m: ${_build_dirs:M*.$q} 700.endif 701.endfor 702.endif 703.if ${_debug_reldir} 704.info ${DEP_RELDIR}.$m: graph: ${_build_dirs:M*.$m:N${_this_dir}.$m} 705.endif 706.if ${BUILD_DIRDEPS_CACHE} == "yes" 707.if !empty(_build_dirs) 708_cache_deps += ${_build_dirs:M*.$m:N${_this_dir}.$m} 709.if !empty(_cache_deps) 710.export _cache_deps 711x!= echo; for x in $$_cache_deps; do echo " $$x \\"; done >&3 712.endif 713x!= echo; { echo; echo '${_this_dir}.$m: $${DIRDEPS.${_this_dir}.$m}'; \ 714 echo; echo 'dirdeps: ${_this_dir}.$m \'; \ 715 for x in $$_build_xtra_dirs; do echo " $$x \\"; done; \ 716 echo; for x in $$_new_dirdeps; do echo "$$x: _DIRDEP_USE"; done; } >&3 717.endif 718.else 719${_this_dir}.$m: ${_build_dirs:M*.$m:N${_this_dir}.$m} 720.endif 721.endfor 722 723.endif 724 725# Now find more dependencies - and recurse. 726.for d in ${_build_all_dirs} 727.if !target(_dirdeps_checked.$d) 728# once only 729_dirdeps_checked.$d: 730.if ${_debug_search} 731.info checking $d 732.endif 733# Note: _build_all_dirs is fully qualifed so d:R is always the directory 734.if exists(${d:R}) 735# we pass _DEP_TARGET_SPEC to tell the next step what we want 736_DEP_TARGET_SPEC := ${d:E} 737# some makefiles may still look at this 738_DEP_MACHINE := ${d:E:C/,.*//} 739# set these too in case Makefile.depend* uses them 740.if ${TARGET_SPEC_VARS:[#]} > 1 741_dtspec := ${_DEP_TARGET_SPEC:S/,/ /g} 742.for i in ${_tspec_x} 743DEP_${TARGET_SPEC_VARS:[$i]} := ${_dtspec:[$i]} 744.endfor 745.else 746DEP_MACHINE := ${_DEP_MACHINE} 747.endif 748# Warning: there is an assumption here that MACHINE is always 749# the first entry in TARGET_SPEC_VARS. 750# If TARGET_SPEC and MACHINE are insufficient, you have a problem. 751_m := ${.MAKE.DEPENDFILE_PREFERENCE:T:S;${TARGET_SPEC}$;${d:E};:S;${MACHINE};${d:E:C/,.*//};:@m@${exists(${d:R}/$m):?${d:R}/$m:}@:[1]} 752.if !empty(_m) 753# M_dep_qual_fixes isn't geared to Makefile.depend 754_qm := ${_m:C;(\.depend)$;\1.${d:E};:${M_dep_qual_fixes:ts:}} 755.if ${_debug_search} 756.info Looking for ${_qm} 757.endif 758# set this "just in case" 759# we can skip :tA since we computed the path above 760DEP_RELDIR := ${_m:H:S,${SRCTOP}/,,} 761# and reset this 762DIRDEPS = 763.if ${_debug_reldir} && ${_qm} != ${_m} 764.info loading ${_m} for ${d:E} 765.endif 766.include <${_m}> 767.else 768.-include <local.dirdeps-missing.mk> 769.endif 770.endif 771.endif 772.endfor 773 774.endif # -V 775.endif # BUILD_DIRDEPS 776 777.elif ${.MAKE.LEVEL} > 42 778.error You should have stopped recursing by now. 779.else 780# we are building something 781DEP_RELDIR := ${RELDIR} 782_DEP_RELDIR := ${RELDIR} 783# Since we are/should be included by .MAKE.DEPENDFILE 784# This is a final opportunity to add/hook global rules. 785.-include <local.dirdeps-build.mk> 786 787# skip _reldir_{finish,failed} if not included from Makefile.depend* 788# or not in meta mode 789.if !defined(WITHOUT_META_STATS) && ${.INCLUDEDFROMFILE:U:M${.MAKE.DEPENDFILE_PREFIX}*} != "" && ${.MAKE.MODE:Mmeta} != "" 790 791meta_stats= meta=${empty(.MAKE.META.FILES):?0:${.MAKE.META.FILES:[#]}} \ 792 created=${empty(.MAKE.META.CREATED):?0:${.MAKE.META.CREATED:[#]}} 793 794.if !target(_reldir_finish) 795.END: _reldir_finish 796_reldir_finish: .NOMETA 797 @echo "${TRACER}Finished ${RELDIR}.${TARGET_SPEC} seconds=$$(( ${now_utc} - ${start_utc} )) ${meta_stats}" 798.endif 799 800.if !target(_reldir_failed) 801.ERROR: _reldir_failed 802_reldir_failed: .NOMETA 803 @echo "${TRACER}Failed ${RELDIR}.${TARGET_SPEC} seconds=$$(( ${now_utc} - ${start_utc} )) ${meta_stats}" 804.endif 805 806.endif 807 808# pickup local dependencies 809.if ${MAKE_VERSION} < 20160220 810.-include <.depend> 811.else 812.dinclude <.depend> 813.endif 814.endif 815 816# bootstrapping new dependencies made easy? 817.if !target(bootstrap) && (make(bootstrap) || \ 818 make(bootstrap-this) || \ 819 make(bootstrap-recurse) || \ 820 make(bootstrap-empty)) 821 822# if we are bootstrapping create the default 823_want = ${.CURDIR}/${.MAKE.DEPENDFILE_DEFAULT:T} 824 825.if exists(${_want}) 826# stop here 827${.TARGETS:Mboot*}: 828.elif !make(bootstrap-empty) 829# find a Makefile.depend to use as _src 830_src != cd ${.CURDIR} && for m in ${.MAKE.DEPENDFILE_PREFERENCE:T:S,${MACHINE},*,}; do test -s $$m || continue; echo $$m; break; done; echo 831.if empty(_src) 832.error cannot find any of ${.MAKE.DEPENDFILE_PREFERENCE:T}${.newline}Use: bootstrap-empty 833.endif 834 835_src?= ${.MAKE.DEPENDFILE} 836 837.MAKE.DEPENDFILE_BOOTSTRAP_SED+= -e 's/${_src:E:C/,.*//}/${MACHINE}/g' 838 839# just create Makefile.depend* for this dir 840bootstrap-this: .NOTMAIN 841 @echo Bootstrapping ${RELDIR}/${_want:T} from ${_src:T}; \ 842 echo You need to build ${RELDIR} to correctly populate it. 843.if ${_src:T} != ${.MAKE.DEPENDFILE_PREFIX:T} 844 (cd ${.CURDIR} && sed ${.MAKE.DEPENDFILE_BOOTSTRAP_SED} ${_src} > ${_want:T}) 845.else 846 cp ${.CURDIR}/${_src:T} ${_want} 847.endif 848 849# create Makefile.depend* for this dir and its dependencies 850bootstrap: bootstrap-recurse 851bootstrap-recurse: bootstrap-this 852 853_mf := ${.PARSEFILE} 854bootstrap-recurse: .NOTMAIN .MAKE 855 @cd ${SRCTOP} && \ 856 for d in `cd ${RELDIR} && ${.MAKE} -B -f ${"${.MAKEFLAGS:M-n}":?${_src}:${.MAKE.DEPENDFILE:T}} -V DIRDEPS`; do \ 857 test -d $$d || d=$${d%.*}; \ 858 test -d $$d || continue; \ 859 echo "Checking $$d for bootstrap ..."; \ 860 (cd $$d && ${.MAKE} -f ${_mf} bootstrap-recurse); \ 861 done 862 863.endif 864 865# create an empty Makefile.depend* to get the ball rolling. 866bootstrap-empty: .NOTMAIN .NOMETA 867 @echo Creating empty ${RELDIR}/${_want:T}; \ 868 echo You need to build ${RELDIR} to correctly populate it. 869 @{ echo DIRDEPS=; echo ".include <dirdeps.mk>"; } > ${_want} 870 871.endif 872