1# $Id: dirdeps.mk,v 1.158 2023/05/04 18:26:17 sjg Exp $ 2 3# SPDX-License-Identifier: BSD-2-Clause 4# 5# Copyright (c) 2010-2023, Simon J. Gerraty 6# Copyright (c) 2010-2018, Juniper Networks, Inc. 7# All rights reserved. 8# 9# Redistribution and use in source and binary forms, with or without 10# modification, are permitted provided that the following conditions 11# are met: 12# 1. Redistributions of source code must retain the above copyright 13# notice, this list of conditions and the following disclaimer. 14# 2. Redistributions in binary form must reproduce the above copyright 15# notice, this list of conditions and the following disclaimer in the 16# documentation and/or other materials provided with the distribution. 17# 18# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 30# Much of the complexity here is for supporting cross-building. 31# If a tree does not support that, simply using plain Makefile.depend 32# should provide sufficient clue. 33# Otherwise the recommendation is to use Makefile.depend.${MACHINE} 34# as expected below. 35 36# Note: this file gets multiply included. 37# This is what we do with DIRDEPS 38 39# DIRDEPS: 40# This is a list of directories - relative to SRCTOP, it is 41# normally only of interest to .MAKE.LEVEL 0. 42# In some cases the entry may be qualified with a .<machine> 43# or .<target_spec> suffix (see TARGET_SPEC_VARS below), 44# for example to force building something for the pseudo 45# machines "host" or "common" regardless of current ${MACHINE}. 46# 47# All unqualified entries end up being qualified with .${TARGET_SPEC} 48# and partially qualified (if TARGET_SPEC_VARS has multiple 49# entries) are also expanded to a full .<target_spec>. 50# The _DIRDEP_USE target uses the suffix to set TARGET_SPEC 51# correctly when visiting each entry. 52# 53# The fully qualified directory entries are used to construct a 54# dependency graph that will drive the build later. 55# 56# Also, for each fully qualified directory target, we will search 57# using ${.MAKE.DEPENDFILE_PREFERENCE} to find additional 58# dependencies. We use Makefile.depend (default value for 59# .MAKE.DEPENDFILE_PREFIX) to refer to these makefiles to 60# distinguish them from others. 61# 62# Before each Makefile.depend file is read, we set 63# DEP_RELDIR to be the RELDIR (path relative to SRCTOP) for 64# its directory, and DEP_MACHINE etc according to the .<target_spec> 65# represented by the suffix of the corresponding target. 66# 67# Since each Makefile.depend file includes dirdeps.mk, this 68# processing is recursive and results in .MAKE.LEVEL 0 learning the 69# dependencies of the tree wrt the initial directory (_DEP_RELDIR). 70# 71# NOTE: given the extent of processing that DIRDEPS undergoes it 72# is important that any variables in entries use :U to guard 73# against surprises when undefined. 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# DIRDEPS_EXPORT_VARS (DEP_EXPORT_VARS) 140# It is discouraged, but sometimes necessary for a 141# Makefile.depend file to influence the environment. 142# Doing this is correctly (especially if using DIRDEPS_CACHE) is 143# tricky so a Makefile.depend file can set DIRDEPS_EXPORT_VARS 144# and dirdeps.mk will do the deed: 145# 146# MK_UEFI = yes 147# DIRDEPS_EXPORT_VARS = MK_UEFI 148# 149# _build_xtra_dirs 150# local.dirdeps.mk can add targets to this variable. 151# They will be hooked into the build, but independent of 152# any other DIRDEP. 153# 154# This allows for adding TESTS to the build, such that the build 155# if any test fails, but without the risk of introducing 156# circular dependencies. 157 158now_utc ?= ${%s:L:gmtime} 159.if !defined(start_utc) 160start_utc := ${now_utc} 161.endif 162 163.if !target(bootstrap) && (make(bootstrap) || \ 164 make(bootstrap-this) || \ 165 make(bootstrap-recurse) || \ 166 make(bootstrap-empty)) 167# disable most of below 168.MAKE.LEVEL = 1 169.endif 170 171# touch this at your peril 172_DIRDEP_USE_LEVEL?= 0 173.if ${.MAKE.LEVEL} == ${_DIRDEP_USE_LEVEL} 174# only the first instance is interested in all this 175 176# the first time we are included the _DIRDEP_USE target will not be defined 177# we can use this as a clue to do initialization and other one time things. 178.if !target(_DIRDEP_USE) 179 180# do some setup we only need once 181_CURDIR ?= ${.CURDIR} 182_OBJDIR ?= ${.OBJDIR} 183 184.if ${MAKEFILE:T} == ${.PARSEFILE} && empty(DIRDEPS) && ${.TARGETS:Uall:M*[/.]*} != "" 185# This little trick let's us do 186# 187# mk -f dirdeps.mk some/dir.${TARGET_SPEC} 188# 189all: 190${.TARGETS:Nall}: all 191DIRDEPS := ${.TARGETS:M*[/.]*} 192# so that -DNO_DIRDEPS works 193DEP_RELDIR := ${DIRDEPS:[1]:R} 194# this will become DEP_MACHINE below 195TARGET_MACHINE := ${DIRDEPS:[1]:E:C/,.*//} 196.if ${TARGET_MACHINE:N*/*} == "" 197TARGET_MACHINE := ${MACHINE} 198.endif 199# disable DIRDEPS_CACHE as it does not like this trick 200MK_DIRDEPS_CACHE = no 201# incase anyone needs to know 202_dirdeps_cmdline: 203.endif 204 205# make sure we get the behavior we expect 206.MAKE.SAVE_DOLLARS = no 207 208# make sure these are empty to start with 209_DEP_TARGET_SPEC = 210 211# If TARGET_SPEC_VARS is other than just MACHINE 212# it should be set by sys.mk or similar by now. 213# TARGET_SPEC must not contain any '.'s. 214TARGET_SPEC_VARS ?= MACHINE 215# this is what we started with 216TARGET_SPEC = ${TARGET_SPEC_VARS:@v@${$v:U}@:ts,} 217# this is what we mostly use below 218DEP_TARGET_SPEC = ${TARGET_SPEC_VARS:S,^,DEP_,:@v@${$v:U}@:ts,} 219# make sure we have defaults 220.for v in ${TARGET_SPEC_VARS} 221DEP_$v ?= ${$v} 222.endfor 223 224.if ${TARGET_SPEC_VARS:[#]} > 1 225# Ok, this gets more complex (putting it mildly). 226# In order to stay sane, we need to ensure that all the build_dirs 227# we compute below are fully qualified wrt DEP_TARGET_SPEC. 228# The makefiles may only partially specify (eg. MACHINE only), 229# so we need to construct a set of modifiers to fill in the gaps. 230.if ${MAKE_VERSION} >= 20170130 231_tspec_x := ${TARGET_SPEC_VARS:range} 232.else 233# do it the hard way 234_tspec_x := ${TARGET_SPEC_VARS:[#]:@x@i=1;while [ $$i -le $x ]; do echo $$i; i=$$((i + 1)); done;@:sh} 235.endif 236# this handles unqualified entries 237M_dep_qual_fixes = C;(/[^/.,]+)$$;\1.$${DEP_TARGET_SPEC}; 238# there needs to be at least one item missing for these to make sense 239.for i in ${_tspec_x:[2..-1]} 240_tspec_m$i := ${TARGET_SPEC_VARS:[2..$i]:@w@[^,]+@:ts,} 241_tspec_a$i := ,${TARGET_SPEC_VARS:[$i..-1]:@v@$$$${DEP_$v}@:ts,} 242M_dep_qual_fixes += C;(\.${_tspec_m$i})$$;\1${_tspec_a$i}; 243.endfor 244TARGET_SPEC_VARSr := ${TARGET_SPEC_VARS:[-1..1]} 245.else 246# A harmless? default. 247M_dep_qual_fixes = U 248.endif 249 250.if !defined(.MAKE.DEPENDFILE_PREFERENCE) 251# .MAKE.DEPENDFILE_PREFERENCE makes the logic below neater? 252# you really want this set by sys.mk or similar 253.MAKE.DEPENDFILE_PREFERENCE = ${_CURDIR}/${.MAKE.DEPENDFILE:T} 254.if ${.MAKE.DEPENDFILE:E} == "${TARGET_SPEC}" 255.if ${TARGET_SPEC} != ${MACHINE} 256.MAKE.DEPENDFILE_PREFERENCE += ${_CURDIR}/${.MAKE.DEPENDFILE:T:R}.$${MACHINE} 257.endif 258.MAKE.DEPENDFILE_PREFERENCE += ${_CURDIR}/${.MAKE.DEPENDFILE:T:R} 259.endif 260.endif 261 262_default_dependfile := ${.MAKE.DEPENDFILE_PREFERENCE:[1]:T} 263_machine_dependfiles := ${.MAKE.DEPENDFILE_PREFERENCE:T:M*${MACHINE}*} 264 265# for machine specific dependfiles we require ${MACHINE} to be at the end 266# also for the sake of sanity we require a common prefix 267.if !defined(.MAKE.DEPENDFILE_PREFIX) 268# knowing .MAKE.DEPENDFILE_PREFIX helps 269.if !empty(_machine_dependfiles) 270.MAKE.DEPENDFILE_PREFIX := ${_machine_dependfiles:[1]:T:R} 271.else 272.MAKE.DEPENDFILE_PREFIX := ${_default_dependfile:T} 273.endif 274.endif 275 276# this is how we identify non-machine specific dependfiles 277N_notmachine := ${.MAKE.DEPENDFILE_PREFERENCE:E:N*${MACHINE}*:${M_ListToSkip}} 278 279# this gets reset for each dirdep we check 280DEP_RELDIR ?= ${RELDIR} 281 282# remember the initial value of DEP_RELDIR - we test for it below. 283_DEP_RELDIR := ${DEP_RELDIR} 284 285# this can cause lots of output! 286# set to a set of glob expressions that might match RELDIR 287DEBUG_DIRDEPS ?= no 288 289# make sure this target exists 290dirdeps: beforedirdeps .WAIT 291beforedirdeps: 292 293.endif # !target(_DIRDEP_USE) 294 295.if ${DEBUG_DIRDEPS:@x@${DEP_RELDIR:M$x}${${DEP_RELDIR}.${DEP_MACHINE}:L:M$x}@} != "" 296_debug_reldir = 1 297.else 298_debug_reldir = 0 299.endif 300.if ${DEBUG_DIRDEPS:@x@${DEP_RELDIR:M$x}${${DEP_RELDIR}.depend depend:L:M$x}@} != "" 301_debug_search = 1 302.else 303_debug_search = 0 304.endif 305 306# First off, we want to know what ${MACHINE} to build for. 307# This can be complicated if we are using a mixture of ${MACHINE} specific 308# and non-specific Makefile.depend* 309 310# if we were included recursively _DEP_TARGET_SPEC should be valid. 311.if empty(_DEP_TARGET_SPEC) 312DEP_MACHINE = ${TARGET_MACHINE:U${MACHINE}} 313_DEP_TARGET_SPEC := ${DEP_TARGET_SPEC} 314.if ${.INCLUDEDFROMFILE:U:M${.MAKE.DEPENDFILE_PREFIX}*} != "" 315# record that we've read dependfile for this 316_dirdeps_checked.${_CURDIR}.${TARGET_SPEC}: 317.endif 318.endif 319 320# by now _DEP_TARGET_SPEC should be set, parse it. 321.if ${TARGET_SPEC_VARS:[#]} > 1 322# we need to parse DEP_MACHINE may or may not contain more info 323_tspec := ${_DEP_TARGET_SPEC:S/,/ /g} 324.for i in ${_tspec_x} 325DEP_${TARGET_SPEC_VARS:[$i]} := ${_tspec:[$i]} 326.endfor 327.for v in ${TARGET_SPEC_VARS:O:u} 328.if empty(DEP_$v) 329.undef DEP_$v 330.endif 331.endfor 332.else 333DEP_MACHINE := ${_DEP_TARGET_SPEC} 334.endif 335 336# host is special 337.if ${DEP_MACHINE:Mhost*} != "" 338DEP_TARGET_SPEC = ${DEP_MACHINE} 339.for v in ${TARGET_SPEC_VARS:O:u:NMACHINE} 340.undef DEP_$v 341.endfor 342.endif 343 344# reset each time through 345_build_all_dirs = 346_build_xtra_dirs = 347 348# DIRDEPS_CACHE can be very handy for debugging. 349# Also if repeatedly building the same target, 350# we can avoid the overhead of re-computing the tree dependencies. 351MK_DIRDEPS_CACHE ?= no 352BUILD_DIRDEPS_CACHE ?= no 353BUILD_DIRDEPS ?= yes 354 355.if ${MK_DIRDEPS_CACHE} == "yes" 356# this is where we will cache all our work 357DIRDEPS_CACHE ?= ${_OBJDIR:tA}/dirdeps.cache${_TARGETS:U${.TARGETS}:Nall:O:u:ts-:S,/,_,g:S,^,.,:N.} 358.endif 359 360# sanity check: Makefile.depend.options should *not* include us 361.if ${.INCLUDEDFROMFILE:U:M${.MAKE.DEPENDFILE_PREFIX}.options} != "" 362.error ${DEP_RELDIR}/${.MAKE.DEPENDFILE_PREFIX}.options: should include dirdeps-options.mk 363.endif 364 365# pickup customizations 366# as below you can use !target(_DIRDEP_USE) to protect things 367# which should only be done once. 368.-include <local.dirdeps.mk> 369 370.if !target(_DIRDEP_USE) 371# things we skip for host tools 372SKIP_HOSTDIR ?= 373 374NSkipHostDir = ${SKIP_HOSTDIR:N*.host*:S,$,.host*,:N.host*:S,^,${SRCTOP}/,:${M_ListToSkip}} 375 376# things we always skip 377# SKIP_DIRDEPS allows for adding entries on command line. 378SKIP_DIR += .host *.WAIT ${SKIP_DIRDEPS} 379SKIP_DIR.host += ${SKIP_HOSTDIR} 380 381DEP_SKIP_DIR = ${SKIP_DIR} \ 382 ${SKIP_DIR.${DEP_TARGET_SPEC}:U} \ 383 ${TARGET_SPEC_VARS:@v@${SKIP_DIR.${DEP_$v}:U}@} \ 384 ${SKIP_DIRDEPS.${DEP_TARGET_SPEC}:U} \ 385 ${TARGET_SPEC_VARS:@v@${SKIP_DIRDEPS.${DEP_$v}:U}@} 386 387 388NSkipDir = ${DEP_SKIP_DIR:${M_ListToSkip}} 389 390.if defined(NODIRDEPS) || defined(WITHOUT_DIRDEPS) 391NO_DIRDEPS = 392.elif defined(WITHOUT_DIRDEPS_BELOW) 393NO_DIRDEPS_BELOW = 394.endif 395 396.if defined(NO_DIRDEPS) 397# confine ourselves to the original dir and below. 398DIRDEPS_FILTER += M${_DEP_RELDIR}* 399.elif defined(NO_DIRDEPS_BELOW) 400DIRDEPS_FILTER += M${_DEP_RELDIR} 401.endif 402 403# this is what we run below 404DIRDEP_MAKE ?= ${.MAKE} 405DIRDEP_DIR ?= ${.TARGET:R} 406 407# if you want us to report load averages during build 408# DIRDEP_USE_PRELUDE += ${DIRDEP_LOADAVG_REPORT}; 409 410DIRDEP_LOADAVG_CMD ?= ${UPTIME:Uuptime} | sed 's,.*\(load\),\1,' 411DIRDEP_LOADAVG_LAST = 0 412# yes the expression here is a bit complicated, 413# the trick is to only eval ${DIRDEP_LOADAVG_LAST::=${now_utc}} 414# when we want to report. 415# Note: expr(1) will exit 1 if the expression evaluates to 0 416# hence the || true 417DIRDEP_LOADAVG_REPORT = \ 418 test -z "${"${expr ${now_utc} - ${DIRDEP_LOADAVG_INTERVAL:U60} - ${DIRDEP_LOADAVG_LAST} || true:L:sh:N-*}":?yes${DIRDEP_LOADAVG_LAST::=${now_utc}}:}" || \ 419 echo "${TRACER}`${DIRDEP_LOADAVG_CMD}`" 420 421# we suppress SUBDIR when visiting the leaves 422# we assume sys.mk will set MACHINE_ARCH 423# you can add extras to DIRDEP_USE_ENV 424# if there is no makefile in the target directory, we skip it. 425_DIRDEP_USE: .USE .MAKE 426 @for m in ${.MAKE.MAKEFILE_PREFERENCE}; do \ 427 test -s ${.TARGET:R}/$$m || continue; \ 428 echo "${TRACER}Checking ${.TARGET:S,^${SRCTOP}/,,} for ${.TARGET:E} ..."; \ 429 ${DIRDEP_USE_PRELUDE} \ 430 MACHINE_ARCH= NO_SUBDIR=1 ${DIRDEP_USE_ENV} \ 431 TARGET_SPEC=${.TARGET:E} \ 432 MACHINE=${.TARGET:E} \ 433 ${DIRDEP_MAKE} -C ${DIRDEP_DIR} || exit 1; \ 434 break; \ 435 done 436 437.ifdef ALL_MACHINES 438.if empty(ONLY_TARGET_SPEC_LIST) && empty(ONLY_MACHINE_LIST) 439# we start with everything 440_machine_list != echo; 'ls' -1 ${_CURDIR}/${.MAKE.DEPENDFILE_PREFIX}* 2> /dev/null 441 442# some things we know we want to ignore 443DIRDEPS_TARGETS_SKIP_LIST += \ 444 *~ \ 445 *.bak \ 446 *.inc \ 447 *.old \ 448 *.options \ 449 *.orig \ 450 *.rej \ 451 452# first trim things we know we want to skip 453# and provide canonical form 454_machine_list := ${_machine_list:${DIRDEPS_TARGETS_SKIP_LIST:${M_ListToSkip}}:T:E} 455 456# cater for local complexities 457# local.dirdeps.mk can set 458# DIRDEPS_ALL_MACHINES_FILTER and 459# DIRDEPS_ALL_MACHINES_FILTER_XTRAS for final tweaks 460 461.if !empty(ALL_TARGET_SPEC_LIST) 462.if ${_debug_reldir} 463.info ALL_TARGET_SPEC_LIST=${ALL_TARGET_SPEC_LIST} 464.endif 465DIRDEPS_ALL_MACHINES_FILTER += \ 466 @x@$${ALL_TARGET_SPEC_LIST:@s@$${x:M$$s}@}@ 467.elif !empty(ALL_MACHINE_LIST) 468.if ${_debug_reldir} 469.info ALL_MACHINE_LIST=${ALL_MACHINE_LIST} 470.endif 471.if ${TARGET_SPEC_VARS:[#]} > 1 472# the space below can result in extraneous ':' 473DIRDEPS_ALL_MACHINES_FILTER += \ 474 @x@$${ALL_MACHINE_LIST:@m@$${x:M$$m,*} $${x:M$$m}@}@ 475.else 476DIRDEPS_ALL_MACHINES_FILTER += \ 477 @x@$${ALL_MACHINE_LIST:@m@$${x:M$$m}@}@ 478.endif 479.endif 480# add local XTRAS - default to something benign 481DIRDEPS_ALL_MACHINES_FILTER += \ 482 ${DIRDEPS_ALL_MACHINES_FILTER_XTRAS:UNbak} 483 484.if ${_debug_reldir} 485.info _machine_list=${_machine_list} 486.info DIRDEPS_ALL_MACHINES_FILTER=${DIRDEPS_ALL_MACHINES_FILTER} 487.endif 488 489_only_machines := ${_machine_list:${DIRDEPS_ALL_MACHINES_FILTER:ts:}:S,:, ,g} 490.else 491_only_machines := ${ONLY_TARGET_SPEC_LIST:U} ${ONLY_MACHINE_LIST:U} 492.endif 493 494.if empty(_only_machines) 495# we must be boot-strapping 496_only_machines := ${TARGET_MACHINE:U${ALL_TARGET_SPEC_LIST:U${ALL_MACHINE_LIST:U${DEP_MACHINE}}}} 497.endif 498 499# cleanup the result 500_only_machines := ${_only_machines:O:u} 501 502.if ${_debug_reldir} 503.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: ALL_MACHINES _only_machines=${_only_machines} 504.endif 505 506.else # ! ALL_MACHINES 507# if ONLY_TARGET_SPEC_LIST or ONLY_MACHINE_LIST is set, we are limited to that. 508# Note that ONLY_TARGET_SPEC_LIST should be fully qualified. 509# if TARGET_MACHINE is set - it is really the same as ONLY_MACHINE_LIST 510# otherwise DEP_MACHINE is it - so DEP_MACHINE will match. 511_only_machines := ${ONLY_TARGET_SPEC_LIST:U:M${DEP_MACHINE},*} 512.if empty(_only_machines) 513_only_machines := ${ONLY_MACHINE_LIST:U${TARGET_MACHINE:U${DEP_MACHINE}}:M${DEP_MACHINE}} 514.endif 515.endif 516 517.if !empty(NOT_MACHINE_LIST) 518_only_machines := ${_only_machines:${NOT_MACHINE_LIST:${M_ListToSkip}}} 519.endif 520.if !empty(NOT_TARGET_SPEC_LIST) 521# we must first qualify 522_dm := ${DEP_MACHINE} 523_only_machines := ${_only_machines:M*,*} ${_only_machines:N*,*:@DEP_MACHINE@${DEP_TARGET_SPEC}@:S,^,.,:${M_dep_qual_fixes:ts:}:O:u:S,^.,,} 524DEP_MACHINE := ${_dm} 525_only_machines := ${_only_machines:${NOT_TARGET_SPEC_LIST:${M_ListToSkip}}} 526.endif 527# clean up 528_only_machines := ${_only_machines:O:u} 529 530.if ${_debug_reldir} 531.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: _only_machines=${_only_machines} 532.endif 533 534# make sure we have a starting place? 535DIRDEPS ?= ${RELDIR} 536.endif # target 537 538.if !defined(NO_DIRDEPS) && !defined(NO_DIRDEPS_BELOW) 539.if ${MK_DIRDEPS_CACHE} == "yes" 540 541# just ensure this exists 542build-dirdeps: 543 544M_oneperline = @x@\\${.newline} $$x@ 545 546.if ${BUILD_DIRDEPS_CACHE} == "no" 547.if !target(dirdeps-cached) 548# we do this via sub-make 549BUILD_DIRDEPS = no 550 551# ignore anything but these 552.MAKE.META.IGNORE_FILTER = M*/${.MAKE.DEPENDFILE_PREFIX}* 553 554dirdeps: dirdeps-cached 555dirdeps-cached: ${DIRDEPS_CACHE} .MAKE 556 @echo "${TRACER}Using ${DIRDEPS_CACHE}" 557 @MAKELEVEL=${.MAKE.LEVEL} \ 558 TARGET_SPEC=${TARGET_SPEC} \ 559 ${TARGET_SPEC_VARS:@v@$v=${$v}@} \ 560 ${.MAKE} -C ${_CURDIR} -f ${DIRDEPS_CACHE} \ 561 dirdeps MK_DIRDEPS_CACHE=no BUILD_DIRDEPS=no 562 563# leaf makefiles rarely work for building DIRDEPS_CACHE 564.if ${RELDIR} != "." 565BUILD_DIRDEPS_MAKEFILE ?= -f dirdeps.mk 566.endif 567 568# these should generally do 569BUILD_DIRDEPS_MAKEFILE ?= 570BUILD_DIRDEPS_TARGETS ?= ${.TARGETS} 571 572.if ${DIRDEPS_CACHE} != ${STATIC_DIRDEPS_CACHE:Uno} && ${DIRDEPS_CACHE:M${SRCTOP}/*} == "" 573# export this for dirdeps-cache-update.mk 574DYNAMIC_DIRDEPS_CACHE := ${DIRDEPS_CACHE} 575.export DYNAMIC_DIRDEPS_CACHE 576# we need the .meta file to ensure we update if 577# any of the Makefile.depend* changed. 578# We do not want to compare the command line though. 579${DIRDEPS_CACHE}: .META .NOMETA_CMP 580 +@{ echo '# Autogenerated - do NOT edit!'; echo; \ 581 echo 'BUILD_DIRDEPS=no'; echo; \ 582 echo '.include <dirdeps.mk>'; echo; \ 583 } > ${.TARGET}.new 584 +@MAKELEVEL=${.MAKE.LEVEL} DIRDEPS_CACHE=${DIRDEPS_CACHE} \ 585 DIRDEPS="${DIRDEPS}" \ 586 TARGET_SPEC=${TARGET_SPEC} \ 587 MAKEFLAGS= ${DIRDEP_CACHE_MAKE:U${.MAKE}} -C ${_CURDIR} \ 588 ${BUILD_DIRDEPS_MAKEFILE} \ 589 ${BUILD_DIRDEPS_TARGETS} BUILD_DIRDEPS_CACHE=yes \ 590 .MAKE.DEPENDFILE=.none \ 591 ${"${DEBUG_DIRDEPS:Nno}":?DEBUG_DIRDEPS='${DEBUG_DIRDEPS}':} \ 592 ${.MAKEFLAGS:tW:S,-D ,-D,g:tw:M*WITH*} \ 593 ${.MAKEFLAGS:tW:S,-d ,-d,g:tw:M-d*} \ 594 3>&1 1>&2 | sed 's,${SRCTOP},_{SRCTOP},g;s,_{SRCTOP}/_{SRCTOP},_{SRCTOP},g;s,_{,$${,g' >> ${.TARGET}.new && \ 595 mv ${.TARGET}.new ${.TARGET} 596 597.endif 598.endif 599.elif !target(_count_dirdeps) 600# we want to capture the dirdeps count in the cache 601.END: _count_dirdeps 602_count_dirdeps: .NOMETA 603 @{ echo; echo '.info $${.newline}$${TRACER}Makefiles read: total=${.MAKE.MAKEFILES:[#]} depend=${.MAKE.MAKEFILES:M*depend*:[#]} dirdeps=${.ALLTARGETS:M${SRCTOP}*:O:u:[#]} ${DIRDEP_INFO_XTRAS}'; } >&3 604 605.endif 606.elif !make(dirdeps) && !target(_count_dirdeps) 607beforedirdeps: _count_dirdeps 608_count_dirdeps: .NOMETA 609 @echo "${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}`" 610 611.endif 612.endif 613 614.if ${BUILD_DIRDEPS} == "yes" 615 616# the rest is done repeatedly for every Makefile.depend we read. 617# if we are anything but the original dir we care only about the 618# machine type we were included for.. 619 620.if ${DEP_RELDIR} == "." 621_this_dir := ${SRCTOP} 622.else 623_this_dir := ${SRCTOP}/${DEP_RELDIR} 624.endif 625 626# on rare occasions, there can be a need for extra help 627_dep_hack := ${_this_dir}/${.MAKE.DEPENDFILE_PREFIX}.inc 628.-include <${_dep_hack}> 629.-include <${_dep_hack:R}.options> 630 631.if ${DEP_RELDIR} != ${_DEP_RELDIR} || ${DEP_TARGET_SPEC} != ${TARGET_SPEC} 632# this should be all 633_machines := ${DEP_MACHINE} 634.else 635# this is the machine list we actually use below 636_machines := ${_only_machines} 637 638.if defined(HOSTPROG) || ${DEP_MACHINE:Nhost*} == "" 639# we need to build this guy's dependencies for host as well. 640.if ${DEP_MACHINE:Nhost*} == "" 641_machines += ${DEP_MACHINE} 642.else 643_machines += host 644.endif 645.endif 646 647_machines := ${_machines:O:u} 648.endif 649 650.if ${TARGET_SPEC_VARS:[#]} > 1 651# we need to tweak _machines 652_dm := ${DEP_MACHINE} 653# apply the same filtering that we do when qualifying DIRDEPS. 654# M_dep_qual_fixes expects .${MACHINE}* so add (and remove) '.' 655# Again we expect that any already qualified machines are fully qualified. 656_machines := ${_machines:M*,*} ${_machines:N*,*:@DEP_MACHINE@${DEP_TARGET_SPEC}@:S,^,.,:S,^.,,} 657DEP_MACHINE := ${_dm} 658_machines := ${_machines:${M_dep_qual_fixes:ts:}:O:u} 659.endif 660 661# reset each time through 662_build_dirs = 663 664.if ${DEP_RELDIR} == ${_DEP_RELDIR} 665# pickup other machines for this dir if necessary 666_build_dirs += ${_machines:@m@${_CURDIR}.$m@} 667.endif 668 669.if ${_debug_reldir} 670.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: nDIRDEPS=${DIRDEPS:[#]} 671.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: DIRDEPS='${DIRDEPS}' 672.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: _machines='${_machines}' 673.endif 674 675.if !empty(DIRDEPS) 676# these we reset each time through as they can depend on DEP_MACHINE 677DEP_DIRDEPS_FILTER = \ 678 ${DIRDEPS_FILTER.${DEP_TARGET_SPEC}:U} \ 679 ${TARGET_SPEC_VARS:@v@${DIRDEPS_FILTER.${DEP_$v}:U}@} \ 680 ${DIRDEPS_FILTER:U} 681.if empty(DEP_DIRDEPS_FILTER) 682# something harmless 683DEP_DIRDEPS_FILTER = U 684.endif 685 686# this is what we start with 687__depdirs := ${DIRDEPS:${NSkipDir}:${DEP_DIRDEPS_FILTER:ts:}:C,//+,/,g:O:u:@d@${SRCTOP}/$d@} 688 689# some entries may be qualified with .<machine> or .<target_spec> 690# we can tell the unqualified ones easily - because they exist 691__unqual_depdirs := ${__depdirs:@d@${exists($d):?$d:}@} 692__qual_depdirs := ${__depdirs:${__unqual_depdirs:Uno:${M_ListToSkip}}} 693 694.if ${DEP_RELDIR} == ${_DEP_RELDIR} 695# if it was called out - we likely need it. 696__hostdpadd := ${DPADD:U.:M${HOST_OBJTOP}/*:S,${HOST_OBJTOP}/,,:H:${NSkipDir}:${DIRDEPS_FILTER:ts:}:S,$,.host,:N.*:@d@${SRCTOP}/$d@} \ 697 ${DPADD:U.:M${HOST_OBJTOP32:Uno}/*:S,${HOST_OBJTOP32:Uno}/,,:H:${NSkipDir}:${DIRDEPS_FILTER:ts:}:S,$,.host32,:N.*:@d@${SRCTOP}/$d@} 698__qual_depdirs += ${__hostdpadd} 699.endif 700 701.if ${_debug_reldir} 702.info DEP_DIRDEPS_FILTER=${DEP_DIRDEPS_FILTER:ts:} 703.info depdirs=${__depdirs:S,^${SRCTOP}/,,} 704.info qualified=${__qual_depdirs:S,^${SRCTOP}/,,} 705.info unqualified=${__unqual_depdirs:S,^${SRCTOP}/,,} 706.endif 707 708# _build_dirs is what we will feed to _DIRDEP_USE 709_build_dirs += \ 710 ${__qual_depdirs:M*.host:${NSkipHostDir}:N.host} \ 711 ${__qual_depdirs:N*.host} \ 712 ${_machines:Mhost*:@m@${__unqual_depdirs:@d@$d.$m@}@:${NSkipHostDir}:N.host} \ 713 ${_machines:Nhost*:@m@${__unqual_depdirs:@d@$d.$m@}@} 714 715# qualify everything now 716_build_dirs := ${_build_dirs:${M_dep_qual_fixes:ts:}:O:u} 717 718.endif # empty DIRDEPS 719 720_build_all_dirs += ${_build_dirs} ${_build_xtra_dirs} 721_build_all_dirs := ${_build_all_dirs:O:u} 722 723# Normally if doing make -V something, 724# we do not want to waste time chasing DIRDEPS 725# but if we want to count the number of Makefile.depend* read, we do. 726.if ${.MAKEFLAGS:M-V${_V_READ_DIRDEPS:U}} == "" 727.if !empty(_build_all_dirs) 728.if ${BUILD_DIRDEPS_CACHE} == "yes" 729# we use _cache_script to minimize the number of times we fork the shell 730_cache_script = echo '\# ${DEP_RELDIR}.${DEP_TARGET_SPEC}'; 731# guard against _new_dirdeps being too big for a single command line 732_new_dirdeps := ${_build_all_dirs:@x@${target($x):?:$x}@:S,^${SRCTOP}/,,} 733_cache_xtra_deps := ${_build_xtra_dirs:S,^${SRCTOP}/,,} 734.export _cache_xtra_deps _new_dirdeps 735.if !empty(DIRDEPS_EXPORT_VARS) || !empty(DEP_EXPORT_VARS) 736# Discouraged, but there are always exceptions. 737# Handle it here rather than explain how. 738DIRDEPS_EXPORT_VARS ?= ${DEP_EXPORT_VARS} 739_cache_xvars := echo; ${DIRDEPS_EXPORT_VARS:@v@echo '$v = ${$v}';@} echo '.export ${DIRDEPS_EXPORT_VARS}'; echo; 740_cache_script += ${_cache_xvars} 741.endif 742.else 743# this makes it all happen 744dirdeps: ${_build_all_dirs} 745.endif 746${_build_all_dirs}: _DIRDEP_USE 747 748.if ${_debug_reldir} 749.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: needs: ${_build_dirs:S,^${SRCTOP}/,,} 750.endif 751 752.if !empty(DIRDEPS_EXPORT_VARS) || !empty(DEP_EXPORT_VARS) 753.export ${DIRDEPS_EXPORT_VARS} ${DEP_EXPORT_VARS} 754DIRDEPS_EXPORT_VARS = 755DEP_EXPORT_VARS = 756.endif 757 758# this builds the dependency graph 759.for m in ${_machines} 760.if ${BUILD_DIRDEPS_CACHE} == "yes" && !empty(_build_dirs) 761_cache_deps = 762_cache_script += echo; echo 'DIRDEPS.${_this_dir}.$m = \'; 763.endif 764# it would be nice to do :N${.TARGET} 765.if !empty(__qual_depdirs) 766.for q in ${__qual_depdirs:${M_dep_qual_fixes:ts:}:E:O:u:N$m} 767.if ${_debug_reldir} || ${DEBUG_DIRDEPS:@x@${${DEP_RELDIR}.$m:L:M$x}${${DEP_RELDIR}.$q:L:M$x}@} != "" 768.info ${DEP_RELDIR}.$m: graph: ${_build_dirs:M*.$q:S,^${SRCTOP}/,,} 769.endif 770.if ${BUILD_DIRDEPS_CACHE} == "yes" 771_cache_deps += ${_build_dirs:M*.$q:S,^${SRCTOP}/,,} 772.else 773${_this_dir}.$m: ${_build_dirs:M*.$q} 774.endif 775.endfor 776.endif 777.if ${_debug_reldir} 778.info ${DEP_RELDIR}.$m: graph: ${_build_dirs:M*.$m:N${_this_dir}.$m:S,^${SRCTOP}/,,} 779.endif 780.if ${BUILD_DIRDEPS_CACHE} == "yes" 781.if !empty(_build_dirs) 782_cache_deps += ${_build_dirs:M*.$m:N${_this_dir}.$m:S,^${SRCTOP}/,,} 783.if !empty(_cache_deps) 784.export _cache_deps 785_cache_script += for x in $$_cache_deps; do echo " _{SRCTOP}/$$x \\"; done; 786.endif 787# anything in _{build,env}_xtra_dirs is hooked to dirdeps: only 788x!= echo; { echo; ${_cache_script} echo; echo '${_this_dir}.$m: $${DIRDEPS.${_this_dir}.$m}'; \ 789 echo; echo 'dirdeps: ${_this_dir}.$m \'; \ 790 for x in $$_cache_xtra_deps; do echo " _{SRCTOP}/$$x \\"; done; \ 791 echo; for x in $$_new_dirdeps; do echo "_{SRCTOP}/$$x: _DIRDEP_USE"; done; } >&3 792.endif 793.else 794${_this_dir}.$m: ${_build_dirs:M*.$m:N${_this_dir}.$m} 795.endif 796.endfor 797 798.endif 799 800# Now find more dependencies - and recurse. 801.for d in ${_build_all_dirs} 802.if !target(_dirdeps_checked.$d) 803# once only 804_dirdeps_checked.$d: 805_dr := ${d:S,^${SRCTOP}/,,} 806.if ${_debug_search} 807.info checking ${_dr} 808.endif 809# Note: _build_all_dirs is fully qualifed so d:R is always the directory 810.if exists(${d:R}) 811# we pass _DEP_TARGET_SPEC to tell the next step what we want 812_DEP_TARGET_SPEC := ${d:E} 813# some makefiles may still look at this 814_DEP_MACHINE := ${d:E:C/,.*//} 815# set these too in case Makefile.depend* uses them 816.if ${TARGET_SPEC_VARS:[#]} > 1 817_dtspec := ${_DEP_TARGET_SPEC:S/,/ /g} 818.for i in ${_tspec_x} 819DEP_${TARGET_SPEC_VARS:[$i]} := ${_dtspec:[$i]} 820.endfor 821.else 822DEP_MACHINE := ${_DEP_MACHINE} 823.endif 824# Warning: there is an assumption here that MACHINE is always 825# the first entry in TARGET_SPEC_VARS. 826# If TARGET_SPEC and MACHINE are insufficient, you have a problem. 827_m := ${.MAKE.DEPENDFILE_PREFERENCE:T:S;${TARGET_SPEC}$;${d:E};:C;${MACHINE}((,.+)?)$;${d:E:C/,.*//}\1;:@m@${exists(${d:R}/$m):?${d:R}/$m:}@:[1]} 828.if !empty(_m) 829# M_dep_qual_fixes isn't geared to Makefile.depend 830_qm := ${_m:C;(\.depend)$;\1.${d:E};:${M_dep_qual_fixes:ts:}} 831.if ${_debug_search} 832.info Looking for ${_qm} 833.endif 834# set this "just in case" 835# we can skip :tA since we computed the path above 836DEP_RELDIR := ${_m:H:S,^${SRCTOP}/,,} 837# and reset this 838DIRDEPS = 839.if ${_debug_reldir} && ${_qm} != ${_m} 840.info loading ${_m:S,${SRCTOP}/,,} for ${_dr} 841.endif 842.include <${_m}> 843.else 844# set these as if we found Makefile.depend* 845DEP_RELDIR := ${_dr:R} 846DIRDEPS = 847.if ${_debug_reldir} 848.info loading local.dirdeps-missing.mk for ${_dr} 849.endif 850.-include <local.dirdeps-missing.mk> 851.endif 852.endif 853.endif 854.endfor 855 856.endif # -V 857.endif # BUILD_DIRDEPS 858 859.elif ${.MAKE.LEVEL} > 42 860.error You should have stopped recursing by now. 861.else 862# we are building something 863DEP_RELDIR := ${RELDIR} 864_DEP_RELDIR := ${RELDIR} 865# Since we are/should be included by .MAKE.DEPENDFILE 866# This is a final opportunity to add/hook global rules. 867.-include <local.dirdeps-build.mk> 868 869# skip _reldir_{finish,failed} if not included from Makefile.depend* 870# or not in meta mode 871.if !defined(WITHOUT_META_STATS) && ${.INCLUDEDFROMFILE:U:M${.MAKE.DEPENDFILE_PREFIX}*} != "" && ${.MAKE.MODE:Mmeta} != "" 872 873meta_stats= meta=${empty(.MAKE.META.FILES):?0:${.MAKE.META.FILES:[#]}} \ 874 created=${empty(.MAKE.META.CREATED):?0:${.MAKE.META.CREATED:[#]}} 875 876.if !target(_reldir_finish) 877.END: _reldir_finish 878_reldir_finish: .NOMETA 879 @echo "${TRACER}Finished ${RELDIR}.${TARGET_SPEC} seconds=$$(( ${now_utc} - ${start_utc} )) ${meta_stats}" 880.endif 881 882.if !target(_reldir_failed) 883.ERROR: _reldir_failed 884_reldir_failed: .NOMETA 885 @echo "${TRACER}Failed ${RELDIR}.${TARGET_SPEC} seconds=$$(( ${now_utc} - ${start_utc} )) ${meta_stats}" 886.endif 887 888.endif 889 890# pickup local dependencies 891.if ${MAKE_VERSION} < 20160220 892.-include <.depend> 893.else 894.dinclude <.depend> 895.endif 896.endif 897 898# bootstrapping new dependencies made easy? 899.if !target(bootstrap-empty) 900.if !target(bootstrap) && (make(bootstrap) || \ 901 make(bootstrap-this) || \ 902 make(bootstrap-recurse) || \ 903 make(bootstrap-empty)) 904 905# if we are bootstrapping create the default 906_want = ${.CURDIR}/${.MAKE.DEPENDFILE_DEFAULT:T} 907 908.if exists(${_want}) 909# stop here 910${.TARGETS:Mboot*}: 911.elif !make(bootstrap-empty) 912# find a Makefile.depend to use as _src 913_src != cd ${.CURDIR} && for m in ${.MAKE.DEPENDFILE_PREFERENCE:T:S,${MACHINE},*,}; do test -s $$m || continue; echo $$m; break; done; echo 914.if empty(_src) 915.error cannot find any of ${.MAKE.DEPENDFILE_PREFERENCE:T}${.newline}Use: bootstrap-empty 916.endif 917 918_src?= ${.MAKE.DEPENDFILE} 919 920.MAKE.DEPENDFILE_BOOTSTRAP_SED+= -e 's/${_src:E:C/,.*//}/${MACHINE}/g' 921 922# just create Makefile.depend* for this dir 923bootstrap-this: .NOTMAIN 924 @echo Bootstrapping ${RELDIR}/${_want:T} from ${_src:T}; \ 925 echo You need to build ${RELDIR} to correctly populate it. 926.if ${_src:T} != ${.MAKE.DEPENDFILE_PREFIX:T} 927 (cd ${.CURDIR} && sed ${.MAKE.DEPENDFILE_BOOTSTRAP_SED} ${_src} > ${_want:T}) 928.else 929 cp ${.CURDIR}/${_src:T} ${_want} 930.endif 931 932# create Makefile.depend* for this dir and its dependencies 933bootstrap: bootstrap-recurse 934bootstrap-recurse: bootstrap-this 935 936_mf := ${.PARSEFILE} 937bootstrap-recurse: .NOTMAIN .MAKE 938 @cd ${SRCTOP} && \ 939 for d in `cd ${RELDIR} && ${.MAKE} -B -f ${"${.MAKEFLAGS:M-n}":?${_src}:${.MAKE.DEPENDFILE:T}} -V DIRDEPS`; do \ 940 test -d $$d || d=$${d%.*}; \ 941 test -d $$d || continue; \ 942 echo "Checking $$d for bootstrap ..."; \ 943 (cd $$d && ${.MAKE} -f ${_mf} bootstrap-recurse); \ 944 done 945 946.endif 947 948# create an empty Makefile.depend* to get the ball rolling. 949bootstrap-empty: .NOTMAIN .NOMETA 950 @echo Creating empty ${RELDIR}/${_want:T}; \ 951 echo You need to build ${RELDIR} to correctly populate it. 952 @{ echo DIRDEPS=; echo ".include <dirdeps.mk>"; } > ${_want} 953 954.endif 955.endif 956