1# $FreeBSD$ 2# $Id: dirdeps.mk,v 1.62 2016/03/16 00:11:53 sjg Exp $ 3 4# Copyright (c) 2010-2013, 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# Each Makefile.depend file sets DEP_RELDIR to be the 61# the RELDIR (path relative to SRCTOP) for its directory, and 62# since each Makefile.depend file includes dirdeps.mk, this 63# processing is recursive and results in .MAKE.LEVEL 0 learning the 64# dependencies of the tree wrt the initial directory (_DEP_RELDIR). 65# 66# BUILD_AT_LEVEL0 67# Indicates whether .MAKE.LEVEL 0 builds anything: 68# if "no" sub-makes are used to build everything, 69# if "yes" sub-makes are only used to build for other machines. 70# It is best to use "no", but this can require fixing some 71# makefiles to not do anything at .MAKE.LEVEL 0. 72# 73# TARGET_SPEC_VARS 74# The default value is just MACHINE, and for most environments 75# this is sufficient. The _DIRDEP_USE target actually sets 76# both MACHINE and TARGET_SPEC to the suffix of the current 77# target so that in the general case TARGET_SPEC can be ignored. 78# 79# If more than MACHINE is needed then sys.mk needs to decompose 80# TARGET_SPEC and set the relevant variables accordingly. 81# It is important that MACHINE be included in and actually be 82# the first member of TARGET_SPEC_VARS. This allows other 83# variables to be considered optional, and some of the treatment 84# below relies on MACHINE being the first entry. 85# Note: TARGET_SPEC cannot contain any '.'s so the target 86# triple used by compiler folk won't work (directly anyway). 87# 88# For example: 89# 90# # Always list MACHINE first, 91# # other variables might be optional. 92# TARGET_SPEC_VARS = MACHINE TARGET_OS 93# .if ${TARGET_SPEC:Uno:M*,*} != "" 94# _tspec := ${TARGET_SPEC:S/,/ /g} 95# MACHINE := ${_tspec:[1]} 96# TARGET_OS := ${_tspec:[2]} 97# # etc. 98# # We need to stop that TARGET_SPEC affecting any submakes 99# # and deal with MACHINE=${TARGET_SPEC} in the environment. 100# TARGET_SPEC = 101# # export but do not track 102# .export-env TARGET_SPEC 103# .export ${TARGET_SPEC_VARS} 104# .for v in ${TARGET_SPEC_VARS:O:u} 105# .if empty($v) 106# .undef $v 107# .endif 108# .endfor 109# .endif 110# # make sure we know what TARGET_SPEC is 111# # as we may need it to find Makefile.depend* 112# TARGET_SPEC = ${TARGET_SPEC_VARS:@v@${$v:U}@:ts,} 113# 114 115# touch this at your peril 116_DIRDEP_USE_LEVEL?= 0 117.if ${.MAKE.LEVEL} == ${_DIRDEP_USE_LEVEL} 118# only the first instance is interested in all this 119 120# First off, we want to know what ${MACHINE} to build for. 121# This can be complicated if we are using a mixture of ${MACHINE} specific 122# and non-specific Makefile.depend* 123 124.if !target(_DIRDEP_USE) 125 126.if ${MAKEFILE:T} == ${.PARSEFILE} && empty(DIRDEPS) && ${.TARGETS:Uall:M*/*} != "" 127# This little trick let's us do 128# 129# mk -f dirdeps.mk some/dir.${TARGET_SPEC} 130# 131all: 132${.TARGETS:Nall}: all 133DIRDEPS := ${.TARGETS:M*[/.]*} 134# so that -DNO_DIRDEPS works 135DEP_RELDIR := ${DIRDEPS:[1]:R} 136# this will become DEP_MACHINE below 137TARGET_MACHINE := ${DIRDEPS:[1]:E:C/,.*//} 138.if ${TARGET_MACHINE:N*/*} == "" 139TARGET_MACHINE := ${MACHINE} 140.endif 141# disable DIRDEPS_CACHE as it does not like this trick 142MK_DIRDEPS_CACHE = no 143.endif 144 145# make sure we get the behavior we expect 146.MAKE.SAVE_DOLLARS = no 147 148# do some setup we only need once 149_CURDIR ?= ${.CURDIR} 150_OBJDIR ?= ${.OBJDIR} 151 152now_utc = ${%s:L:gmtime} 153.if !defined(start_utc) 154start_utc := ${now_utc} 155.endif 156 157# make sure these are empty to start with 158_DEP_TARGET_SPEC = 159 160# If TARGET_SPEC_VARS is other than just MACHINE 161# it should be set by sys.mk or similar by now. 162# TARGET_SPEC must not contain any '.'s. 163TARGET_SPEC_VARS ?= MACHINE 164# this is what we started with 165TARGET_SPEC = ${TARGET_SPEC_VARS:@v@${$v:U}@:ts,} 166# this is what we mostly use below 167DEP_TARGET_SPEC = ${TARGET_SPEC_VARS:S,^,DEP_,:@v@${$v:U}@:ts,} 168# make sure we have defaults 169.for v in ${TARGET_SPEC_VARS} 170DEP_$v ?= ${$v} 171.endfor 172 173.if ${TARGET_SPEC_VARS:[#]} > 1 174# Ok, this gets more complex (putting it mildly). 175# In order to stay sane, we need to ensure that all the build_dirs 176# we compute below are fully qualified wrt DEP_TARGET_SPEC. 177# The makefiles may only partially specify (eg. MACHINE only), 178# so we need to construct a set of modifiers to fill in the gaps. 179# jot 10 should output 1 2 3 .. 10 180JOT ?= jot 181_tspec_x := ${${JOT} ${TARGET_SPEC_VARS:[#]}:L:sh} 182# this handles unqualified entries 183M_dep_qual_fixes = C;(/[^/.,]+)$$;\1.$${DEP_TARGET_SPEC}; 184# there needs to be at least one item missing for these to make sense 185.for i in ${_tspec_x:[2..-1]} 186_tspec_m$i := ${TARGET_SPEC_VARS:[2..$i]:@w@[^,]+@:ts,} 187_tspec_a$i := ,${TARGET_SPEC_VARS:[$i..-1]:@v@$$$${DEP_$v}@:ts,} 188M_dep_qual_fixes += C;(\.${_tspec_m$i})$$;\1${_tspec_a$i}; 189.endfor 190.else 191# A harmless? default. 192M_dep_qual_fixes = U 193.endif 194 195.if !defined(.MAKE.DEPENDFILE_PREFERENCE) 196# .MAKE.DEPENDFILE_PREFERENCE makes the logic below neater? 197# you really want this set by sys.mk or similar 198.MAKE.DEPENDFILE_PREFERENCE = ${_CURDIR}/${.MAKE.DEPENDFILE:T} 199.if ${.MAKE.DEPENDFILE:E} == "${TARGET_SPEC}" 200.if ${TARGET_SPEC} != ${MACHINE} 201.MAKE.DEPENDFILE_PREFERENCE += ${_CURDIR}/${.MAKE.DEPENDFILE:T:R}.$${MACHINE} 202.endif 203.MAKE.DEPENDFILE_PREFERENCE += ${_CURDIR}/${.MAKE.DEPENDFILE:T:R} 204.endif 205.endif 206 207_default_dependfile := ${.MAKE.DEPENDFILE_PREFERENCE:[1]:T} 208_machine_dependfiles := ${.MAKE.DEPENDFILE_PREFERENCE:T:M*${MACHINE}*} 209 210# for machine specific dependfiles we require ${MACHINE} to be at the end 211# also for the sake of sanity we require a common prefix 212.if !defined(.MAKE.DEPENDFILE_PREFIX) 213# knowing .MAKE.DEPENDFILE_PREFIX helps 214.if !empty(_machine_dependfiles) 215.MAKE.DEPENDFILE_PREFIX := ${_machine_dependfiles:[1]:T:R} 216.else 217.MAKE.DEPENDFILE_PREFIX := ${_default_dependfile:T} 218.endif 219.endif 220 221 222# this is how we identify non-machine specific dependfiles 223N_notmachine := ${.MAKE.DEPENDFILE_PREFERENCE:E:N*${MACHINE}*:${M_ListToSkip}} 224 225.endif # !target(_DIRDEP_USE) 226 227# if we were included recursively _DEP_TARGET_SPEC should be valid. 228.if empty(_DEP_TARGET_SPEC) 229# we may or may not have included a dependfile yet 230.if defined(.INCLUDEDFROMFILE) 231_last_dependfile := ${.INCLUDEDFROMFILE:M${.MAKE.DEPENDFILE_PREFIX}*} 232.else 233_last_dependfile := ${.MAKE.MAKEFILES:M*/${.MAKE.DEPENDFILE_PREFIX}*:[-1]} 234.endif 235.if ${_debug_reldir:U0} 236.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: _last_dependfile='${_last_dependfile}' 237.endif 238 239.if empty(_last_dependfile) || ${_last_dependfile:E:${N_notmachine}} == "" 240# this is all we have to work with 241DEP_MACHINE = ${TARGET_MACHINE:U${MACHINE}} 242_DEP_TARGET_SPEC := ${DEP_TARGET_SPEC} 243.else 244_DEP_TARGET_SPEC = ${_last_dependfile:${M_dep_qual_fixes:ts:}:E} 245.endif 246.if !empty(_last_dependfile) 247# record that we've read dependfile for this 248_dirdeps_checked.${_CURDIR}.${TARGET_SPEC}: 249.endif 250.endif 251 252# by now _DEP_TARGET_SPEC should be set, parse it. 253.if ${TARGET_SPEC_VARS:[#]} > 1 254# we need to parse DEP_MACHINE may or may not contain more info 255_tspec := ${_DEP_TARGET_SPEC:S/,/ /g} 256.for i in ${_tspec_x} 257DEP_${TARGET_SPEC_VARS:[$i]} := ${_tspec:[$i]} 258.endfor 259.for v in ${TARGET_SPEC_VARS:O:u} 260.if empty(DEP_$v) 261.undef DEP_$v 262.endif 263.endfor 264.else 265DEP_MACHINE := ${_DEP_TARGET_SPEC} 266.endif 267 268# reset each time through 269_build_all_dirs = 270 271# the first time we are included the _DIRDEP_USE target will not be defined 272# we can use this as a clue to do initialization and other one time things. 273.if !target(_DIRDEP_USE) 274# make sure this target exists 275dirdeps: beforedirdeps .WAIT 276beforedirdeps: 277 278# We normally expect to be included by Makefile.depend.* 279# which sets the DEP_* macros below. 280DEP_RELDIR ?= ${RELDIR} 281 282# this can cause lots of output! 283# set to a set of glob expressions that might match RELDIR 284DEBUG_DIRDEPS ?= no 285 286# remember the initial value of DEP_RELDIR - we test for it below. 287_DEP_RELDIR := ${DEP_RELDIR} 288 289.endif 290 291# pickup customizations 292# as below you can use !target(_DIRDEP_USE) to protect things 293# which should only be done once. 294.-include <local.dirdeps.mk> 295 296.if !target(_DIRDEP_USE) 297# things we skip for host tools 298SKIP_HOSTDIR ?= 299 300NSkipHostDir = ${SKIP_HOSTDIR:N*.host*:S,$,.host*,:N.host*:S,^,${SRCTOP}/,:${M_ListToSkip}} 301 302# things we always skip 303# SKIP_DIRDEPS allows for adding entries on command line. 304SKIP_DIR += .host *.WAIT ${SKIP_DIRDEPS} 305SKIP_DIR.host += ${SKIP_HOSTDIR} 306 307DEP_SKIP_DIR = ${SKIP_DIR} \ 308 ${SKIP_DIR.${DEP_TARGET_SPEC}:U} \ 309 ${SKIP_DIR.${DEP_MACHINE}:U} \ 310 ${SKIP_DIRDEPS.${DEP_MACHINE}:U} 311 312NSkipDir = ${DEP_SKIP_DIR:${M_ListToSkip}} 313 314.if defined(NODIRDEPS) || defined(WITHOUT_DIRDEPS) 315NO_DIRDEPS = 316.elif defined(WITHOUT_DIRDEPS_BELOW) 317NO_DIRDEPS_BELOW = 318.endif 319 320.if defined(NO_DIRDEPS) 321# confine ourselves to the original dir and below. 322DIRDEPS_FILTER += M${_DEP_RELDIR}* 323.elif defined(NO_DIRDEPS_BELOW) 324DIRDEPS_FILTER += M${_DEP_RELDIR} 325.endif 326 327# this is what we run below 328DIRDEP_MAKE?= ${.MAKE} 329 330# we suppress SUBDIR when visiting the leaves 331# we assume sys.mk will set MACHINE_ARCH 332# you can add extras to DIRDEP_USE_ENV 333# if there is no makefile in the target directory, we skip it. 334_DIRDEP_USE: .USE .MAKE 335 @for m in ${.MAKE.MAKEFILE_PREFERENCE}; do \ 336 test -s ${.TARGET:R}/$$m || continue; \ 337 echo "${TRACER}Checking ${.TARGET:R} for ${.TARGET:E} ..."; \ 338 MACHINE_ARCH= NO_SUBDIR=1 ${DIRDEP_USE_ENV} \ 339 TARGET_SPEC=${.TARGET:E} \ 340 MACHINE=${.TARGET:E} \ 341 ${DIRDEP_MAKE} -C ${.TARGET:R} || exit 1; \ 342 break; \ 343 done 344 345.ifdef ALL_MACHINES 346# this is how you limit it to only the machines we have been built for 347# previously. 348.if empty(ONLY_MACHINE_LIST) 349.if !empty(ALL_MACHINE_LIST) 350# ALL_MACHINE_LIST is the list of all legal machines - ignore anything else 351_machine_list != cd ${_CURDIR} && 'ls' -1 ${ALL_MACHINE_LIST:O:u:@m@${.MAKE.DEPENDFILE:T:R}.$m@} 2> /dev/null; echo 352.else 353_machine_list != 'ls' -1 ${_CURDIR}/${.MAKE.DEPENDFILE_PREFIX}.* 2> /dev/null; echo 354.endif 355_only_machines := ${_machine_list:${NIgnoreFiles:UN*.bak}:E:O:u} 356.else 357_only_machines := ${ONLY_MACHINE_LIST} 358.endif 359 360.if empty(_only_machines) 361# we must be boot-strapping 362_only_machines := ${TARGET_MACHINE:U${ALL_MACHINE_LIST:U${DEP_MACHINE}}} 363.endif 364 365.else # ! ALL_MACHINES 366# if ONLY_MACHINE_LIST is set, we are limited to that 367# if TARGET_MACHINE is set - it is really the same as ONLY_MACHINE_LIST 368# otherwise DEP_MACHINE is it - so DEP_MACHINE will match. 369_only_machines := ${ONLY_MACHINE_LIST:U${TARGET_MACHINE:U${DEP_MACHINE}}:M${DEP_MACHINE}} 370.endif 371 372.if !empty(NOT_MACHINE_LIST) 373_only_machines := ${_only_machines:${NOT_MACHINE_LIST:${M_ListToSkip}}} 374.endif 375 376# make sure we have a starting place? 377DIRDEPS ?= ${RELDIR} 378.endif # target 379 380# if repeatedly building the same target, 381# we can avoid the overhead of re-computing the tree dependencies. 382MK_DIRDEPS_CACHE ?= no 383BUILD_DIRDEPS_CACHE ?= no 384BUILD_DIRDEPS ?= yes 385 386.if !defined(NO_DIRDEPS) && !defined(NO_DIRDEPS_BELOW) 387.if ${MK_DIRDEPS_CACHE} == "yes" 388# this is where we will cache all our work 389DIRDEPS_CACHE?= ${_OBJDIR}/dirdeps.cache${.TARGETS:Nall:O:u:ts-:S,/,_,g:S,^,.,:N.} 390 391# just ensure this exists 392build-dirdeps: 393 394M_oneperline = @x@\\${.newline} $$x@ 395 396.if ${BUILD_DIRDEPS_CACHE} == "no" 397.if !target(dirdeps-cached) 398# we do this via sub-make 399BUILD_DIRDEPS = no 400 401dirdeps: dirdeps-cached 402dirdeps-cached: ${DIRDEPS_CACHE} .MAKE 403 @echo "${TRACER}Using ${DIRDEPS_CACHE}" 404 @MAKELEVEL=${.MAKE.LEVEL} ${.MAKE} -C ${_CURDIR} -f ${DIRDEPS_CACHE} \ 405 dirdeps MK_DIRDEPS_CACHE=no BUILD_DIRDEPS=no 406 407# these should generally do 408BUILD_DIRDEPS_MAKEFILE ?= ${MAKEFILE} 409BUILD_DIRDEPS_TARGETS ?= ${.TARGETS} 410 411# we need the .meta file to ensure we update if 412# any of the Makefile.depend* changed. 413# We do not want to compare the command line though. 414${DIRDEPS_CACHE}: .META .NOMETA_CMP 415 +@{ echo '# Autogenerated - do NOT edit!'; echo; \ 416 echo 'BUILD_DIRDEPS=no'; echo; \ 417 echo '.include <dirdeps.mk>'; \ 418 } > ${.TARGET}.new 419 +@MAKELEVEL=${.MAKE.LEVEL} DIRDEPS_CACHE=${DIRDEPS_CACHE} \ 420 DIRDEPS="${DIRDEPS}" \ 421 MAKEFLAGS= ${.MAKE} -C ${_CURDIR} -f ${BUILD_DIRDEPS_MAKEFILE} \ 422 ${BUILD_DIRDEPS_TARGETS} BUILD_DIRDEPS_CACHE=yes \ 423 .MAKE.DEPENDFILE=.none \ 424 ${.MAKEFLAGS:tW:S,-D ,-D,g:tw:M*WITH*} \ 425 3>&1 1>&2 | sed 's,${SRCTOP},$${SRCTOP},g' >> ${.TARGET}.new && \ 426 mv ${.TARGET}.new ${.TARGET} 427 428.endif 429.elif !target(_count_dirdeps) 430# we want to capture the dirdeps count in the cache 431.END: _count_dirdeps 432_count_dirdeps: .NOMETA 433 @echo '.info $${.newline}$${TRACER}Makefiles read: total=${.MAKE.MAKEFILES:[#]} depend=${.MAKE.MAKEFILES:M*depend*:[#]} dirdeps=${.ALLTARGETS:M${SRCTOP}*:O:u:[#]}' >&3 434 435.endif 436.elif !make(dirdeps) && !target(_count_dirdeps) 437beforedirdeps: _count_dirdeps 438_count_dirdeps: .NOMETA 439 @echo "${TRACER}Makefiles read: total=${.MAKE.MAKEFILES:[#]} depend=${.MAKE.MAKEFILES:M*depend*:[#]} dirdeps=${.ALLTARGETS:M${SRCTOP}*:O:u:[#]} seconds=`expr ${now_utc} - ${start_utc}`" 440 441.endif 442.endif 443 444.if ${BUILD_DIRDEPS} == "yes" 445.if ${DEBUG_DIRDEPS:@x@${DEP_RELDIR:M$x}${${DEP_RELDIR}.${DEP_MACHINE}:L:M$x}@} != "" 446_debug_reldir = 1 447.else 448_debug_reldir = 0 449.endif 450.if ${DEBUG_DIRDEPS:@x@${DEP_RELDIR:M$x}${${DEP_RELDIR}.depend:L:M$x}@} != "" 451_debug_search = 1 452.else 453_debug_search = 0 454.endif 455 456# the rest is done repeatedly for every Makefile.depend we read. 457# if we are anything but the original dir we care only about the 458# machine type we were included for.. 459 460.if ${DEP_RELDIR} == "." 461_this_dir := ${SRCTOP} 462.else 463_this_dir := ${SRCTOP}/${DEP_RELDIR} 464.endif 465 466# on rare occasions, there can be a need for extra help 467_dep_hack := ${_this_dir}/${.MAKE.DEPENDFILE_PREFIX}.inc 468.-include <${_dep_hack}> 469 470.if ${DEP_RELDIR} != ${_DEP_RELDIR} || ${DEP_TARGET_SPEC} != ${TARGET_SPEC} 471# this should be all 472_machines := ${DEP_MACHINE} 473.else 474# this is the machine list we actually use below 475_machines := ${_only_machines} 476 477.if defined(HOSTPROG) || ${DEP_MACHINE} == "host" 478# we need to build this guy's dependencies for host as well. 479_machines += host 480.endif 481 482_machines := ${_machines:O:u} 483.endif 484 485.if ${TARGET_SPEC_VARS:[#]} > 1 486# we need to tweak _machines 487_dm := ${DEP_MACHINE} 488# apply the same filtering that we do when qualifying DIRDEPS. 489# M_dep_qual_fixes expects .${MACHINE}* so add (and remove) '.' 490_machines := ${_machines:@DEP_MACHINE@${DEP_TARGET_SPEC}@:S,^,.,:${M_dep_qual_fixes:ts:}:O:u:S,^.,,} 491DEP_MACHINE := ${_dm} 492.endif 493 494# reset each time through 495_build_dirs = 496 497.if ${DEP_RELDIR} == ${_DEP_RELDIR} 498# pickup other machines for this dir if necessary 499.if ${BUILD_AT_LEVEL0:Uyes} == "no" 500_build_dirs += ${_machines:@m@${_CURDIR}.$m@} 501.else 502_build_dirs += ${_machines:N${DEP_TARGET_SPEC}:@m@${_CURDIR}.$m@} 503.if ${DEP_TARGET_SPEC} == ${TARGET_SPEC} 504# pickup local dependencies now 505.if ${MAKE_VERSION} < 20160220 506.-include <.depend> 507.else 508.dinclude <.depend> 509.endif 510.endif 511.endif 512.endif 513 514.if ${_debug_reldir} 515.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: DIRDEPS='${DIRDEPS}' 516.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: _machines='${_machines}' 517.endif 518 519.if !empty(DIRDEPS) 520# these we reset each time through as they can depend on DEP_MACHINE 521DEP_DIRDEPS_FILTER = \ 522 ${DIRDEPS_FILTER.${DEP_TARGET_SPEC}:U} \ 523 ${DIRDEPS_FILTER.${DEP_MACHINE}:U} \ 524 ${DIRDEPS_FILTER:U} 525.if empty(DEP_DIRDEPS_FILTER) 526# something harmless 527DEP_DIRDEPS_FILTER = U 528.endif 529 530# this is what we start with 531__depdirs := ${DIRDEPS:${NSkipDir}:${DEP_DIRDEPS_FILTER:ts:}:C,//+,/,g:O:u:@d@${SRCTOP}/$d@} 532 533# some entries may be qualified with .<machine> 534# the :M*/*/*.* just tries to limit the dirs we check to likely ones. 535# the ${d:E:M*/*} ensures we don't consider junos/usr.sbin/mgd 536__qual_depdirs := ${__depdirs:M*/*/*.*:@d@${exists($d):?:${"${d:E:M*/*}":?:${exists(${d:R}):?$d:}}}@} 537__unqual_depdirs := ${__depdirs:${__qual_depdirs:Uno:${M_ListToSkip}}} 538 539.if ${DEP_RELDIR} == ${_DEP_RELDIR} 540# if it was called out - we likely need it. 541__hostdpadd := ${DPADD:U.:M${HOST_OBJTOP}/*:S,${HOST_OBJTOP}/,,:H:${NSkipDir}:${DIRDEPS_FILTER:ts:}:S,$,.host,:N.*:@d@${SRCTOP}/$d@} 542__qual_depdirs += ${__hostdpadd} 543.endif 544 545.if ${_debug_reldir} 546.info depdirs=${__depdirs} 547.info qualified=${__qual_depdirs} 548.info unqualified=${__unqual_depdirs} 549.endif 550 551# _build_dirs is what we will feed to _DIRDEP_USE 552_build_dirs += \ 553 ${__qual_depdirs:M*.host:${NSkipHostDir}:N.host} \ 554 ${__qual_depdirs:N*.host} \ 555 ${_machines:Mhost*:@m@${__unqual_depdirs:@d@$d.$m@}@:${NSkipHostDir}:N.host} \ 556 ${_machines:Nhost*:@m@${__unqual_depdirs:@d@$d.$m@}@} 557 558# qualify everything now 559_build_dirs := ${_build_dirs:${M_dep_qual_fixes:ts:}:O:u} 560 561_build_all_dirs += ${_build_dirs} 562_build_all_dirs := ${_build_all_dirs:O:u} 563 564.endif # empty DIRDEPS 565 566# Normally if doing make -V something, 567# we do not want to waste time chasing DIRDEPS 568# but if we want to count the number of Makefile.depend* read, we do. 569.if ${.MAKEFLAGS:M-V${_V_READ_DIRDEPS}} == "" 570.if !empty(_build_all_dirs) 571.if ${BUILD_DIRDEPS_CACHE} == "yes" 572x!= { echo; echo '\# ${DEP_RELDIR}.${DEP_TARGET_SPEC}'; \ 573 echo 'dirdeps: ${_build_all_dirs:${M_oneperline}}'; echo; } >&3; echo 574x!= { ${_build_all_dirs:@x@${target($x):?:echo '$x: _DIRDEP_USE';}@} echo; } >&3; echo 575.else 576# this makes it all happen 577dirdeps: ${_build_all_dirs} 578.endif 579${_build_all_dirs}: _DIRDEP_USE 580 581.if ${_debug_reldir} 582.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: needs: ${_build_dirs} 583.endif 584 585# this builds the dependency graph 586.for m in ${_machines} 587# it would be nice to do :N${.TARGET} 588.if !empty(__qual_depdirs) 589.for q in ${__qual_depdirs:${M_dep_qual_fixes:ts:}:E:O:u:N$m} 590.if ${_debug_reldir} || ${DEBUG_DIRDEPS:@x@${${DEP_RELDIR}.$m:L:M$x}${${DEP_RELDIR}.$q:L:M$x}@} != "" 591.info ${DEP_RELDIR}.$m: graph: ${_build_dirs:M*.$q} 592.endif 593.if ${BUILD_DIRDEPS_CACHE} == "yes" 594x!= { echo; echo '${_this_dir}.$m: ${_build_dirs:M*.$q:${M_oneperline}}'; echo; } >&3; echo 595.else 596${_this_dir}.$m: ${_build_dirs:M*.$q} 597.endif 598.endfor 599.endif 600.if ${_debug_reldir} 601.info ${DEP_RELDIR}.$m: graph: ${_build_dirs:M*.$m:N${_this_dir}.$m} 602.endif 603.if ${BUILD_DIRDEPS_CACHE} == "yes" 604x!= { echo; echo '${_this_dir}.$m: ${_build_dirs:M*.$m:N${_this_dir}.$m:${M_oneperline}}'; echo; } >&3; echo 605.else 606${_this_dir}.$m: ${_build_dirs:M*.$m:N${_this_dir}.$m} 607.endif 608.endfor 609 610.endif 611 612# Now find more dependencies - and recurse. 613.for d in ${_build_all_dirs} 614.if !target(_dirdeps_checked.$d) 615# once only 616_dirdeps_checked.$d: 617.if ${_debug_search} 618.info checking $d 619.endif 620# Note: _build_all_dirs is fully qualifed so d:R is always the directory 621.if exists(${d:R}) 622# Warning: there is an assumption here that MACHINE is always 623# the first entry in TARGET_SPEC_VARS. 624# If TARGET_SPEC and MACHINE are insufficient, you have a problem. 625_m := ${.MAKE.DEPENDFILE_PREFERENCE:T:S;${TARGET_SPEC}$;${d:E};:S;${MACHINE};${d:E:C/,.*//};:@m@${exists(${d:R}/$m):?${d:R}/$m:}@:[1]} 626.if !empty(_m) 627# M_dep_qual_fixes isn't geared to Makefile.depend 628_qm := ${_m:C;(\.depend)$;\1.${d:E};:${M_dep_qual_fixes:ts:}} 629.if ${_debug_search} 630.info Looking for ${_qm} 631.endif 632# we pass _DEP_TARGET_SPEC to tell the next step what we want 633_DEP_TARGET_SPEC := ${d:E} 634# some makefiles may still look at this 635_DEP_MACHINE := ${d:E:C/,.*//} 636# set this "just in case" 637# we can skip :tA since we computed the path above 638DEP_RELDIR := ${_m:H:S,${SRCTOP}/,,} 639# and reset this 640DIRDEPS = 641.if ${_debug_reldir} && ${_qm} != ${_m} 642.info loading ${_m} for ${d:E} 643.endif 644.include <${_m}> 645.endif 646.endif 647.endif 648.endfor 649 650.endif # -V 651.endif # BUILD_DIRDEPS 652 653.elif ${.MAKE.LEVEL} > 42 654.error You should have stopped recursing by now. 655.else 656# we are building something 657DEP_RELDIR := ${RELDIR} 658_DEP_RELDIR := ${RELDIR} 659# pickup local dependencies 660.if ${MAKE_VERSION} < 20160220 661.-include <.depend> 662.else 663.dinclude <.depend> 664.endif 665.endif 666 667# bootstrapping new dependencies made easy? 668.if !target(bootstrap) && (make(bootstrap) || \ 669 make(bootstrap-this) || \ 670 make(bootstrap-recurse) || \ 671 make(bootstrap-empty)) 672 673.if exists(${.CURDIR}/${.MAKE.DEPENDFILE:T}) 674# stop here 675${.TARGETS:Mboot*}: 676.elif !make(bootstrap-empty) 677# find a Makefile.depend to use as _src 678_src != cd ${.CURDIR} && for m in ${.MAKE.DEPENDFILE_PREFERENCE:T:S,${MACHINE},*,}; do test -s $$m || continue; echo $$m; break; done; echo 679.if empty(_src) 680.error cannot find any of ${.MAKE.DEPENDFILE_PREFERENCE:T}${.newline}Use: bootstrap-empty 681.endif 682 683_src?= ${.MAKE.DEPENDFILE:T} 684 685# just create Makefile.depend* for this dir 686bootstrap-this: .NOTMAIN 687 @echo Bootstrapping ${RELDIR}/${.MAKE.DEPENDFILE:T} from ${_src:T} 688 (cd ${.CURDIR} && sed 's,${_src:E},${MACHINE},g' ${_src} > ${.MAKE.DEPENDFILE:T}) 689 690# create Makefile.depend* for this dir and its dependencies 691bootstrap: bootstrap-recurse 692bootstrap-recurse: bootstrap-this 693 694_mf := ${.PARSEFILE} 695bootstrap-recurse: .NOTMAIN .MAKE 696 @cd ${SRCTOP} && \ 697 for d in `cd ${RELDIR} && ${.MAKE} -B -f ${"${.MAKEFLAGS:M-n}":?${_src}:${.MAKE.DEPENDFILE:T}} -V DIRDEPS`; do \ 698 test -d $$d || d=$${d%.*}; \ 699 test -d $$d || continue; \ 700 echo "Checking $$d for bootstrap ..."; \ 701 (cd $$d && ${.MAKE} -f ${_mf} bootstrap-recurse); \ 702 done 703 704.endif 705 706# create an empty Makefile.depend* to get the ball rolling. 707bootstrap-empty: .NOTMAIN .NOMETA 708 @echo Creating empty ${RELDIR}/${.MAKE.DEPENDFILE:T}; \ 709 echo You need to build ${RELDIR} to correctly populate it. 710 @{ echo DIRDEPS=; echo ".include <dirdeps.mk>"; } > ${.CURDIR}/${.MAKE.DEPENDFILE:T} 711 712.endif 713