dirdeps.mk revision 282740
1# $Id: dirdeps.mk,v 1.51 2015/05/06 06:07:30 sjg Exp $ 2 3# Copyright (c) 2010-2013, Juniper Networks, Inc. 4# All rights reserved. 5# 6# Redistribution and use in source and binary forms, with or without 7# modification, are permitted provided that the following conditions 8# are met: 9# 1. Redistributions of source code must retain the above copyright 10# notice, this list of conditions and the following disclaimer. 11# 2. Redistributions in binary form must reproduce the above copyright 12# notice, this list of conditions and the following disclaimer in the 13# documentation and/or other materials provided with the distribution. 14# 15# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 16# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 17# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 18# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 19# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 20# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 21# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 25# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 27# Much of the complexity here is for supporting cross-building. 28# If a tree does not support that, simply using plain Makefile.depend 29# should provide sufficient clue. 30# Otherwise the recommendation is to use Makefile.depend.${MACHINE} 31# as expected below. 32 33# Note: this file gets multiply included. 34# This is what we do with DIRDEPS 35 36# DIRDEPS: 37# This is a list of directories - relative to SRCTOP, it is 38# normally only of interest to .MAKE.LEVEL 0. 39# In some cases the entry may be qualified with a .<machine> 40# or .<target_spec> suffix (see TARGET_SPEC_VARS below), 41# for example to force building something for the pseudo 42# machines "host" or "common" regardless of current ${MACHINE}. 43# 44# All unqualified entries end up being qualified with .${TARGET_SPEC} 45# and partially qualified (if TARGET_SPEC_VARS has multiple 46# entries) are also expanded to a full .<target_spec>. 47# The _DIRDEP_USE target uses the suffix to set TARGET_SPEC 48# correctly when visiting each entry. 49# 50# The fully qualified directory entries are used to construct a 51# dependency graph that will drive the build later. 52# 53# Also, for each fully qualified directory target, we will search 54# using ${.MAKE.DEPENDFILE_PREFERENCE} to find additional 55# dependencies. We use Makefile.depend (default value for 56# .MAKE.DEPENDFILE_PREFIX) to refer to these makefiles to 57# distinguish them from others. 58# 59# Each Makefile.depend file sets DEP_RELDIR to be the 60# the RELDIR (path relative to SRCTOP) for its directory, and 61# since each Makefile.depend file includes dirdeps.mk, this 62# processing is recursive and results in .MAKE.LEVEL 0 learning the 63# dependencies of the tree wrt the initial directory (_DEP_RELDIR). 64# 65# BUILD_AT_LEVEL0 66# Indicates whether .MAKE.LEVEL 0 builds anything: 67# if "no" sub-makes are used to build everything, 68# if "yes" sub-makes are only used to build for other machines. 69# It is best to use "no", but this can require fixing some 70# makefiles to not do anything at .MAKE.LEVEL 0. 71# 72# TARGET_SPEC_VARS 73# The default value is just MACHINE, and for most environments 74# this is sufficient. The _DIRDEP_USE target actually sets 75# both MACHINE and TARGET_SPEC to the suffix of the current 76# target so that in the general case TARGET_SPEC can be ignored. 77# 78# If more than MACHINE is needed then sys.mk needs to decompose 79# TARGET_SPEC and set the relevant variables accordingly. 80# It is important that MACHINE be included in and actually be 81# the first member of TARGET_SPEC_VARS. This allows other 82# variables to be considered optional, and some of the treatment 83# below relies on MACHINE being the first entry. 84# Note: TARGET_SPEC cannot contain any '.'s so the target 85# triple used by compiler folk won't work (directly anyway). 86# 87# For example: 88# 89# # Always list MACHINE first, 90# # other variables might be optional. 91# TARGET_SPEC_VARS = MACHINE TARGET_OS 92# .if ${TARGET_SPEC:Uno:M*,*} != "" 93# _tspec := ${TARGET_SPEC:S/,/ /g} 94# MACHINE := ${_tspec:[1]} 95# TARGET_OS := ${_tspec:[2]} 96# # etc. 97# # We need to stop that TARGET_SPEC affecting any submakes 98# # and deal with MACHINE=${TARGET_SPEC} in the environment. 99# TARGET_SPEC = 100# # export but do not track 101# .export-env TARGET_SPEC 102# .export ${TARGET_SPEC_VARS} 103# .for v in ${TARGET_SPEC_VARS:O:u} 104# .if empty($v) 105# .undef $v 106# .endif 107# .endfor 108# .endif 109# # make sure we know what TARGET_SPEC is 110# # as we may need it to find Makefile.depend* 111# TARGET_SPEC = ${TARGET_SPEC_VARS:@v@${$v:U}@:ts,} 112# 113 114# touch this at your peril 115_DIRDEP_USE_LEVEL?= 0 116.if ${.MAKE.LEVEL} == ${_DIRDEP_USE_LEVEL} 117# only the first instance is interested in all this 118 119# First off, we want to know what ${MACHINE} to build for. 120# This can be complicated if we are using a mixture of ${MACHINE} specific 121# and non-specific Makefile.depend* 122 123.if !target(_DIRDEP_USE) 124# do some setup we only need once 125_CURDIR ?= ${.CURDIR} 126_OBJDIR ?= ${.OBJDIR} 127 128now_utc = ${%s:L:gmtime} 129.if !defined(start_utc) 130start_utc := ${now_utc} 131.endif 132 133# make sure these are empty to start with 134_DEP_TARGET_SPEC = 135_DIRDEP_CHECKED = 136 137# If TARGET_SPEC_VARS is other than just MACHINE 138# it should be set by sys.mk or similar by now. 139# TARGET_SPEC must not contain any '.'s. 140TARGET_SPEC_VARS ?= MACHINE 141# this is what we started with 142TARGET_SPEC = ${TARGET_SPEC_VARS:@v@${$v:U}@:ts,} 143# this is what we mostly use below 144DEP_TARGET_SPEC = ${TARGET_SPEC_VARS:S,^,DEP_,:@v@${$v:U}@:ts,} 145# make sure we have defaults 146.for v in ${TARGET_SPEC_VARS} 147DEP_$v ?= ${$v} 148.endfor 149 150.if ${TARGET_SPEC_VARS:[#]} > 1 151# Ok, this gets more complex (putting it mildly). 152# In order to stay sane, we need to ensure that all the build_dirs 153# we compute below are fully qualified wrt DEP_TARGET_SPEC. 154# The makefiles may only partially specify (eg. MACHINE only), 155# so we need to construct a set of modifiers to fill in the gaps. 156# jot 10 should output 1 2 3 .. 10 157JOT ?= jot 158_tspec_x := ${${JOT} ${TARGET_SPEC_VARS:[#]}:L:sh} 159# this handles unqualified entries 160M_dep_qual_fixes = C;(/[^/.,]+)$$;\1.$${DEP_TARGET_SPEC}; 161# there needs to be at least one item missing for these to make sense 162.for i in ${_tspec_x:[2..-1]} 163_tspec_m$i := ${TARGET_SPEC_VARS:[2..$i]:@w@[^,]+@:ts,} 164_tspec_a$i := ,${TARGET_SPEC_VARS:[$i..-1]:@v@$$$${DEP_$v}@:ts,} 165M_dep_qual_fixes += C;(\.${_tspec_m$i})$$;\1${_tspec_a$i}; 166.endfor 167.else 168# A harmless? default. 169M_dep_qual_fixes = U 170.endif 171 172.if !defined(.MAKE.DEPENDFILE_PREFERENCE) 173# .MAKE.DEPENDFILE_PREFERENCE makes the logic below neater? 174# you really want this set by sys.mk or similar 175.MAKE.DEPENDFILE_PREFERENCE = ${_CURDIR}/${.MAKE.DEPENDFILE:T} 176.if ${.MAKE.DEPENDFILE:E} == "${TARGET_SPEC}" 177.if ${TARGET_SPEC} != ${MACHINE} 178.MAKE.DEPENDFILE_PREFERENCE += ${_CURDIR}/${.MAKE.DEPENDFILE:T:R}.$${MACHINE} 179.endif 180.MAKE.DEPENDFILE_PREFERENCE += ${_CURDIR}/${.MAKE.DEPENDFILE:T:R} 181.endif 182.endif 183 184_default_dependfile := ${.MAKE.DEPENDFILE_PREFERENCE:[1]:T} 185_machine_dependfiles := ${.MAKE.DEPENDFILE_PREFERENCE:T:M*${MACHINE}*} 186 187# for machine specific dependfiles we require ${MACHINE} to be at the end 188# also for the sake of sanity we require a common prefix 189.if !defined(.MAKE.DEPENDFILE_PREFIX) 190# knowing .MAKE.DEPENDFILE_PREFIX helps 191.if !empty(_machine_dependfiles) 192.MAKE.DEPENDFILE_PREFIX := ${_machine_dependfiles:[1]:T:R} 193.else 194.MAKE.DEPENDFILE_PREFIX := ${_default_dependfile:T} 195.endif 196.endif 197 198 199# this is how we identify non-machine specific dependfiles 200N_notmachine := ${.MAKE.DEPENDFILE_PREFERENCE:E:N*${MACHINE}*:${M_ListToSkip}} 201 202.endif # !target(_DIRDEP_USE) 203 204# if we were included recursively _DEP_TARGET_SPEC should be valid. 205.if empty(_DEP_TARGET_SPEC) 206# we may or may not have included a dependfile yet 207.if defined(.INCLUDEDFROMFILE) 208_last_dependfile := ${.INCLUDEDFROMFILE:M${.MAKE.DEPENDFILE_PREFIX}*} 209.else 210_last_dependfile := ${.MAKE.MAKEFILES:M*/${.MAKE.DEPENDFILE_PREFIX}*:[-1]} 211.endif 212.if ${_debug_reldir:U0} 213.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: _last_dependfile='${_last_dependfile}' 214.endif 215 216.if empty(_last_dependfile) || ${_last_dependfile:E:${N_notmachine}} == "" 217# this is all we have to work with 218DEP_MACHINE = ${TARGET_MACHINE:U${MACHINE}} 219_DEP_TARGET_SPEC := ${DEP_TARGET_SPEC} 220.else 221_DEP_TARGET_SPEC = ${_last_dependfile:${M_dep_qual_fixes:ts:}:E} 222.endif 223.if !empty(_last_dependfile) 224# record that we've read dependfile for this 225_DIRDEP_CHECKED += ${_CURDIR}.${TARGET_SPEC} 226.endif 227.endif 228 229# by now _DEP_TARGET_SPEC should be set, parse it. 230.if ${TARGET_SPEC_VARS:[#]} > 1 231# we need to parse DEP_MACHINE may or may not contain more info 232_tspec := ${_DEP_TARGET_SPEC:S/,/ /g} 233.for i in ${_tspec_x} 234DEP_${TARGET_SPEC_VARS:[$i]} := ${_tspec:[$i]} 235.endfor 236.for v in ${TARGET_SPEC_VARS:O:u} 237.if empty(DEP_$v) 238.undef DEP_$v 239.endif 240.endfor 241.else 242DEP_MACHINE := ${_DEP_TARGET_SPEC} 243.endif 244 245# pickup customizations 246# as below you can use !target(_DIRDEP_USE) to protect things 247# which should only be done once. 248.-include "local.dirdeps.mk" 249 250# the first time we are included the _DIRDEP_USE target will not be defined 251# we can use this as a clue to do initialization and other one time things. 252.if !target(_DIRDEP_USE) 253# make sure this target exists 254dirdeps: beforedirdeps .WAIT 255beforedirdeps: 256 257# We normally expect to be included by Makefile.depend.* 258# which sets the DEP_* macros below. 259DEP_RELDIR ?= ${RELDIR} 260 261# this can cause lots of output! 262# set to a set of glob expressions that might match RELDIR 263DEBUG_DIRDEPS ?= no 264 265# remember the initial value of DEP_RELDIR - we test for it below. 266_DEP_RELDIR := ${DEP_RELDIR} 267 268# things we skip for host tools 269SKIP_HOSTDIR ?= 270 271NSkipHostDir = ${SKIP_HOSTDIR:N*.host*:S,$,.host*,:N.host*:S,^,${SRCTOP}/,:${M_ListToSkip}} 272 273# things we always skip 274# SKIP_DIRDEPS allows for adding entries on command line. 275SKIP_DIR += .host *.WAIT ${SKIP_DIRDEPS} 276SKIP_DIR.host += ${SKIP_HOSTDIR} 277 278DEP_SKIP_DIR = ${SKIP_DIR} \ 279 ${SKIP_DIR.${DEP_TARGET_SPEC}:U} \ 280 ${SKIP_DIR.${DEP_MACHINE}:U} \ 281 ${SKIP_DIRDEPS.${DEP_MACHINE}:U} 282 283NSkipDir = ${DEP_SKIP_DIR:${M_ListToSkip}} 284 285.if defined(NO_DIRDEPS) || defined(NODIRDEPS) || defined(WITHOUT_DIRDEPS) 286# confine ourselves to the original dir 287DIRDEPS_FILTER += M${_DEP_RELDIR}* 288.endif 289 290# this is what we run below 291DIRDEP_MAKE?= ${.MAKE} 292 293# we suppress SUBDIR when visiting the leaves 294# we assume sys.mk will set MACHINE_ARCH 295# you can add extras to DIRDEP_USE_ENV 296# if there is no makefile in the target directory, we skip it. 297_DIRDEP_USE: .USE .MAKE 298 @for m in ${.MAKE.MAKEFILE_PREFERENCE}; do \ 299 test -s ${.TARGET:R}/$$m || continue; \ 300 echo "${TRACER}Checking ${.TARGET:R} for ${.TARGET:E} ..."; \ 301 MACHINE_ARCH= NO_SUBDIR=1 ${DIRDEP_USE_ENV} \ 302 TARGET_SPEC=${.TARGET:E} \ 303 MACHINE=${.TARGET:E} \ 304 ${DIRDEP_MAKE} -C ${.TARGET:R} || exit 1; \ 305 break; \ 306 done 307 308.ifdef ALL_MACHINES 309# this is how you limit it to only the machines we have been built for 310# previously. 311.if empty(ONLY_MACHINE_LIST) 312.if !empty(ALL_MACHINE_LIST) 313# ALL_MACHINE_LIST is the list of all legal machines - ignore anything else 314_machine_list != cd ${_CURDIR} && 'ls' -1 ${ALL_MACHINE_LIST:O:u:@m@${.MAKE.DEPENDFILE:T:R}.$m@} 2> /dev/null; echo 315.else 316_machine_list != 'ls' -1 ${_CURDIR}/${.MAKE.DEPENDFILE_PREFIX}.* 2> /dev/null; echo 317.endif 318_only_machines := ${_machine_list:${NIgnoreFiles:UN*.bak}:E:O:u} 319.else 320_only_machines := ${ONLY_MACHINE_LIST} 321.endif 322 323.if empty(_only_machines) 324# we must be boot-strapping 325_only_machines := ${TARGET_MACHINE:U${ALL_MACHINE_LIST:U${DEP_MACHINE}}} 326.endif 327 328.else # ! ALL_MACHINES 329# if ONLY_MACHINE_LIST is set, we are limited to that 330# if TARGET_MACHINE is set - it is really the same as ONLY_MACHINE_LIST 331# otherwise DEP_MACHINE is it - so DEP_MACHINE will match. 332_only_machines := ${ONLY_MACHINE_LIST:U${TARGET_MACHINE:U${DEP_MACHINE}}:M${DEP_MACHINE}} 333.endif 334 335.if !empty(NOT_MACHINE_LIST) 336_only_machines := ${_only_machines:${NOT_MACHINE_LIST:${M_ListToSkip}}} 337.endif 338 339# make sure we have a starting place? 340DIRDEPS ?= ${RELDIR} 341.endif # target 342 343# if repeatedly building the same target, 344# we can avoid the overhead of re-computing the tree dependencies. 345MK_DIRDEPS_CACHE ?= no 346BUILD_DIRDEPS_CACHE ?= no 347BUILD_DIRDEPS ?= yes 348 349.if !defined(NO_DIRDEPS) 350.if ${MK_DIRDEPS_CACHE} == "yes" 351# this is where we will cache all our work 352DIRDEPS_CACHE?= ${_OBJDIR}/dirdeps.cache${.TARGETS:Nall:O:u:ts-:S,/,_,g:S,^,.,:N.} 353 354# just ensure this exists 355build-dirdeps: 356 357M_oneperline = @x@\\${.newline} $$x@ 358 359.if ${BUILD_DIRDEPS_CACHE} == "no" 360.if !target(dirdeps-cached) 361# we do this via sub-make 362BUILD_DIRDEPS = no 363 364dirdeps: dirdeps-cached 365dirdeps-cached: ${DIRDEPS_CACHE} .MAKE 366 @echo "${TRACER}Using ${DIRDEPS_CACHE}" 367 @MAKELEVEL=${.MAKE.LEVEL} ${.MAKE} -C ${_CURDIR} -f ${DIRDEPS_CACHE} \ 368 dirdeps MK_DIRDEPS_CACHE=no BUILD_DIRDEPS=no 369 370# these should generally do 371BUILD_DIRDEPS_MAKEFILE ?= ${MAKEFILE} 372BUILD_DIRDEPS_TARGETS ?= ${.TARGETS} 373 374# we need the .meta file to ensure we update if 375# any of the Makefile.depend* changed. 376# We do not want to compare the command line though. 377${DIRDEPS_CACHE}: .META .NOMETA_CMP 378 +@{ echo '# Autogenerated - do NOT edit!'; echo; \ 379 echo 'BUILD_DIRDEPS=no'; echo; \ 380 echo '.include <dirdeps.mk>'; \ 381 } > ${.TARGET}.new 382 +@MAKELEVEL=${.MAKE.LEVEL} DIRDEPS_CACHE=${DIRDEPS_CACHE} \ 383 DIRDEPS="${DIRDEPS}" \ 384 MAKEFLAGS= ${.MAKE} -C ${_CURDIR} -f ${BUILD_DIRDEPS_MAKEFILE} \ 385 ${BUILD_DIRDEPS_TARGETS} BUILD_DIRDEPS_CACHE=yes \ 386 3>&1 1>&2 | sed 's,${SRCTOP},$${SRCTOP},g' >> ${.TARGET}.new && \ 387 mv ${.TARGET}.new ${.TARGET} 388 389.endif 390.elif !target(_count_dirdeps) 391# we want to capture the dirdeps count in the cache 392.END: _count_dirdeps 393_count_dirdeps: .NOMETA 394 @echo '.info $${.newline}$${TRACER}Makefiles read: total=${.MAKE.MAKEFILES:[#]} depend=${.MAKE.MAKEFILES:M*depend*:[#]} dirdeps=${.ALLTARGETS:M${SRCTOP}*:O:u:[#]}' >&3 395 396.endif 397.elif !make(dirdeps) && !target(_count_dirdeps) 398beforedirdeps: _count_dirdeps 399_count_dirdeps: .NOMETA 400 @echo "${TRACER}Makefiles read: total=${.MAKE.MAKEFILES:[#]} depend=${.MAKE.MAKEFILES:M*depend*:[#]} dirdeps=${.ALLTARGETS:M${SRCTOP}*:O:u:[#]} seconds=`expr ${now_utc} - ${start_utc}`" 401 402.endif 403.endif 404 405.if ${BUILD_DIRDEPS} == "yes" 406.if ${DEBUG_DIRDEPS:@x@${DEP_RELDIR:M$x}${${DEP_RELDIR}.${DEP_MACHINE}:L:M$x}@} != "" 407_debug_reldir = 1 408.else 409_debug_reldir = 0 410.endif 411.if ${DEBUG_DIRDEPS:@x@${DEP_RELDIR:M$x}${${DEP_RELDIR}.depend:L:M$x}@} != "" 412_debug_search = 1 413.else 414_debug_search = 0 415.endif 416 417# the rest is done repeatedly for every Makefile.depend we read. 418# if we are anything but the original dir we care only about the 419# machine type we were included for.. 420 421.if ${DEP_RELDIR} == "." 422_this_dir := ${SRCTOP} 423.else 424_this_dir := ${SRCTOP}/${DEP_RELDIR} 425.endif 426 427# on rare occasions, there can be a need for extra help 428_dep_hack := ${_this_dir}/${.MAKE.DEPENDFILE_PREFIX}.inc 429.-include "${_dep_hack}" 430 431.if ${DEP_RELDIR} != ${_DEP_RELDIR} || ${DEP_TARGET_SPEC} != ${TARGET_SPEC} 432# this should be all 433_machines := ${DEP_MACHINE} 434.else 435# this is the machine list we actually use below 436_machines := ${_only_machines} 437 438.if defined(HOSTPROG) || ${DEP_MACHINE} == "host" 439# we need to build this guy's dependencies for host as well. 440_machines += host 441.endif 442 443_machines := ${_machines:O:u} 444.endif 445 446.if ${TARGET_SPEC_VARS:[#]} > 1 447# we need to tweak _machines 448_dm := ${DEP_MACHINE} 449# apply the same filtering that we do when qualifying DIRDEPS. 450# M_dep_qual_fixes expects .${MACHINE}* so add (and remove) '.' 451_machines := ${_machines:@DEP_MACHINE@${DEP_TARGET_SPEC}@:S,^,.,:${M_dep_qual_fixes:ts:}:O:u:S,^.,,} 452DEP_MACHINE := ${_dm} 453.endif 454 455# reset each time through 456_build_dirs = 457 458.if ${DEP_RELDIR} == ${_DEP_RELDIR} 459# pickup other machines for this dir if necessary 460.if ${BUILD_AT_LEVEL0:Uyes} == "no" 461_build_dirs += ${_machines:@m@${_CURDIR}.$m@} 462.else 463_build_dirs += ${_machines:N${DEP_TARGET_SPEC}:@m@${_CURDIR}.$m@} 464.if ${DEP_TARGET_SPEC} == ${TARGET_SPEC} 465# pickup local dependencies now 466.-include <.depend> 467.endif 468.endif 469.endif 470 471.if ${_debug_reldir} 472.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: DIRDEPS='${DIRDEPS}' 473.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: _machines='${_machines}' 474.endif 475 476.if !empty(DIRDEPS) 477# these we reset each time through as they can depend on DEP_MACHINE 478DEP_DIRDEPS_FILTER = \ 479 ${DIRDEPS_FILTER.${DEP_TARGET_SPEC}:U} \ 480 ${DIRDEPS_FILTER.${DEP_MACHINE}:U} \ 481 ${DIRDEPS_FILTER:U} 482.if empty(DEP_DIRDEPS_FILTER) 483# something harmless 484DEP_DIRDEPS_FILTER = U 485.endif 486 487# this is what we start with 488__depdirs := ${DIRDEPS:${NSkipDir}:${DEP_DIRDEPS_FILTER:ts:}:C,//+,/,g:O:u:@d@${SRCTOP}/$d@} 489 490# some entries may be qualified with .<machine> 491# the :M*/*/*.* just tries to limit the dirs we check to likely ones. 492# the ${d:E:M*/*} ensures we don't consider junos/usr.sbin/mgd 493__qual_depdirs := ${__depdirs:M*/*/*.*:@d@${exists($d):?:${"${d:E:M*/*}":?:${exists(${d:R}):?$d:}}}@} 494__unqual_depdirs := ${__depdirs:${__qual_depdirs:Uno:${M_ListToSkip}}} 495 496.if ${DEP_RELDIR} == ${_DEP_RELDIR} 497# if it was called out - we likely need it. 498__hostdpadd := ${DPADD:U.:M${HOST_OBJTOP}/*:S,${HOST_OBJTOP}/,,:H:${NSkipDir}:${DIRDEPS_FILTER:ts:}:S,$,.host,:N.*:@d@${SRCTOP}/$d@} 499__qual_depdirs += ${__hostdpadd} 500.endif 501 502.if ${_debug_reldir} 503.info depdirs=${__depdirs} 504.info qualified=${__qual_depdirs} 505.info unqualified=${__unqual_depdirs} 506.endif 507 508# _build_dirs is what we will feed to _DIRDEP_USE 509_build_dirs += \ 510 ${__qual_depdirs:M*.host:${NSkipHostDir}:N.host} \ 511 ${__qual_depdirs:N*.host} \ 512 ${_machines:Mhost*:@m@${__unqual_depdirs:@d@$d.$m@}@:${NSkipHostDir}:N.host} \ 513 ${_machines:Nhost*:@m@${__unqual_depdirs:@d@$d.$m@}@} 514 515# qualify everything now 516_build_dirs := ${_build_dirs:${M_dep_qual_fixes:ts:}:O:u} 517 518.endif # empty DIRDEPS 519 520# Normally if doing make -V something, 521# we do not want to waste time chasing DIRDEPS 522# but if we want to count the number of Makefile.depend* read, we do. 523.if ${.MAKEFLAGS:M-V${_V_READ_DIRDEPS}} == "" 524.if !empty(_build_dirs) 525.if ${BUILD_DIRDEPS_CACHE} == "yes" 526x!= { echo; echo '\# ${DEP_RELDIR}.${DEP_TARGET_SPEC}'; \ 527 echo 'dirdeps: ${_build_dirs:${M_oneperline}}'; echo; } >&3; echo 528x!= { ${_build_dirs:@x@${target($x):?:echo '$x: _DIRDEP_USE';}@} echo; } >&3; echo 529.else 530# this makes it all happen 531dirdeps: ${_build_dirs} 532.endif 533${_build_dirs}: _DIRDEP_USE 534 535.if ${_debug_reldir} 536.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: needs: ${_build_dirs} 537.endif 538 539# this builds the dependency graph 540.for m in ${_machines} 541# it would be nice to do :N${.TARGET} 542.if !empty(__qual_depdirs) 543.for q in ${__qual_depdirs:${M_dep_qual_fixes:ts:}:E:O:u:N$m} 544.if ${_debug_reldir} || ${DEBUG_DIRDEPS:@x@${${DEP_RELDIR}.$m:L:M$x}${${DEP_RELDIR}.$q:L:M$x}@} != "" 545.info ${DEP_RELDIR}.$m: graph: ${_build_dirs:M*.$q} 546.endif 547.if ${BUILD_DIRDEPS_CACHE} == "yes" 548x!= { echo; echo '${_this_dir}.$m: ${_build_dirs:M*.$q:${M_oneperline}}'; echo; } >&3; echo 549.else 550${_this_dir}.$m: ${_build_dirs:M*.$q} 551.endif 552.endfor 553.endif 554.if ${_debug_reldir} 555.info ${DEP_RELDIR}.$m: graph: ${_build_dirs:M*.$m:N${_this_dir}.$m} 556.endif 557.if ${BUILD_DIRDEPS_CACHE} == "yes" 558x!= { echo; echo '${_this_dir}.$m: ${_build_dirs:M*.$m:N${_this_dir}.$m:${M_oneperline}}'; echo; } >&3; echo 559.else 560${_this_dir}.$m: ${_build_dirs:M*.$m:N${_this_dir}.$m} 561.endif 562.endfor 563 564.endif 565 566# Now find more dependencies - and recurse. 567.for d in ${_build_dirs} 568.if ${_DIRDEP_CHECKED:M$d} == "" 569# once only 570_DIRDEP_CHECKED += $d 571.if ${_debug_search} 572.info checking $d 573.endif 574# Note: _build_dirs is fully qualifed so d:R is always the directory 575.if exists(${d:R}) 576# Warning: there is an assumption here that MACHINE is always 577# the first entry in TARGET_SPEC_VARS. 578# If TARGET_SPEC and MACHINE are insufficient, you have a problem. 579_m := ${.MAKE.DEPENDFILE_PREFERENCE:T:S;${TARGET_SPEC}$;${d:E};:S;${MACHINE};${d:E:C/,.*//};:@m@${exists(${d:R}/$m):?${d:R}/$m:}@:[1]} 580.if !empty(_m) 581# M_dep_qual_fixes isn't geared to Makefile.depend 582_qm := ${_m:C;(\.depend)$;\1.${d:E};:${M_dep_qual_fixes:ts:}} 583.if ${_debug_search} 584.info Looking for ${_qm} 585.endif 586# we pass _DEP_TARGET_SPEC to tell the next step what we want 587_DEP_TARGET_SPEC := ${d:E} 588# some makefiles may still look at this 589_DEP_MACHINE := ${d:E:C/,.*//} 590.if ${_debug_reldir} && ${_qm} != ${_m} 591.info loading ${_m} for ${d:E} 592.endif 593.include <${_m}> 594.endif 595.endif 596.endif 597.endfor 598 599.endif # -V 600.endif # BUILD_DIRDEPS 601 602.elif ${.MAKE.LEVEL} > 42 603.error You should have stopped recursing by now. 604.else 605_DEP_RELDIR := ${DEP_RELDIR} 606# pickup local dependencies 607.-include <.depend> 608.endif 609 610# bootstrapping new dependencies made easy? 611.if make(bootstrap*) && !target(bootstrap) 612 613.if exists(${.CURDIR}/${.MAKE.DEPENDFILE:T}) 614# stop here 615${.TARGETS:Mboot*}: 616.else 617# find a Makefile.depend to use as _src 618_src != cd ${.CURDIR} && for m in ${.MAKE.DEPENDFILE_PREFERENCE:T:S,${MACHINE},*,}; do test -s $$m || continue; echo $$m; break; done; echo 619.if empty(_src) 620.error cannot find any of ${.MAKE.DEPENDFILE_PREFERENCE:T} 621.endif 622 623_src?= ${.MAKE.DEPENDFILE:T} 624 625bootstrap-this: .NOTMAIN 626 @echo Bootstrapping ${RELDIR}/${.MAKE.DEPENDFILE:T} from ${_src:T} 627 (cd ${.CURDIR} && sed 's,${_src:E},${MACHINE},g' ${_src} > ${.MAKE.DEPENDFILE:T}) 628 629bootstrap: bootstrap-recurse 630bootstrap-recurse: bootstrap-this 631 632_mf := ${.PARSEFILE} 633bootstrap-recurse: .NOTMAIN .MAKE 634 @cd ${SRCTOP} && \ 635 for d in `cd ${RELDIR} && ${.MAKE} -B -f ${"${.MAKEFLAGS:M-n}":?${_src}:${.MAKE.DEPENDFILE:T}} -V DIRDEPS`; do \ 636 test -d $$d || d=$${d%.*}; \ 637 test -d $$d || continue; \ 638 echo "Checking $$d for bootstrap ..."; \ 639 (cd $$d && ${.MAKE} -f ${_mf} bootstrap-recurse); \ 640 done 641 642.endif 643.endif 644