1# $Id: gendirdeps.mk,v 1.23 2013/09/04 17:49:20 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# 28# This makefile [re]generates ${.MAKE.DEPENDFILE} 29# 30 31.include <install-new.mk> 32 33# Assumptions: 34# RELDIR is the relative path from ${SRCTOP} to ${_CURDIR} 35# (SRCTOP is ${SB}/src) 36# _CURDIR is the absolute version of ${.CURDIR} 37# _OBJDIR is the absolute version of ${.OBJDIR} 38# _objroot is realpath of ${_OBJTOP} without ${MACHINE} 39# this may be different from _OBJROOT if $SB/obj is a 40# symlink to another filesystem. 41# _objroot must be a prefix match for _objtop 42 43.MAIN: all 44 45# keep this simple 46.MAKE.MODE = compat 47 48all: 49 50_CURDIR ?= ${.CURDIR} 51_OBJDIR ?= ${.OBJDIR} 52_OBJTOP ?= ${OBJTOP} 53_OBJROOT ?= ${OBJROOT:U${_OBJTOP}} 54.if ${_OBJROOT:M*/} 55_slash=/ 56.else 57_slash= 58.endif 59_objroot ?= ${_OBJROOT:tA}${_slash} 60 61_this = ${.PARSEDIR}/${.PARSEFILE} 62 63# remember what to make 64_DEPENDFILE := ${_CURDIR}/${.MAKE.DEPENDFILE:T} 65 66# We do _not_ want to read our own output! 67.MAKE.DEPENDFILE = /dev/null 68 69# caller should have set this 70META_FILES ?= ${.MAKE.META.FILES} 71 72.if !empty(META_FILES) 73 74.if ${.MAKE.LEVEL} > 0 && !empty(GENDIRDEPS_FILTER) 75# so we can compare below 76.-include <${_DEPENDFILE}> 77# yes, I mean :U with no value 78_DIRDEPS := ${DIRDEPS:U:O:u} 79.endif 80 81META_FILES := ${META_FILES:T:O:u} 82.export META_FILES 83 84# pickup customizations 85.-include "local.gendirdeps.mk" 86 87# these are actually prefixes that we'll skip 88# they should all be absolute paths 89SKIP_GENDIRDEPS ?= 90.if !empty(SKIP_GENDIRDEPS) 91_skip_gendirdeps = egrep -v '^(${SKIP_GENDIRDEPS:O:u:ts|})' | 92.else 93_skip_gendirdeps = 94.endif 95 96# this (*should* be set in meta.sys.mk) 97# is the script that extracts what we want. 98META2DEPS ?= ${.PARSEDIR}/meta2deps.sh 99META2DEPS := ${META2DEPS} 100 101.if ${DEBUG_GENDIRDEPS:Uno:@x@${RELDIR:M$x}@} != "" && ${DEBUG_GENDIRDEPS:Uno:Mmeta2d*} != "" 102_time = time 103_sh_x = sh -x 104_py_d = -ddd 105.else 106_time = 107_sh_x = 108_py_d = 109.endif 110 111.if ${META2DEPS:E} == "py" 112# we can afford to do this all the time. 113DPDEPS ?= no 114META2DEPS_CMD = ${_time} ${PYTHON} ${META2DEPS} ${_py_d} 115.if ${DPDEPS:tl} != "no" 116META2DEPS_CMD += -D ${DPDEPS} 117.endif 118META2DEPS_FILTER = sed 's,^src:,${SRCTOP}/,;s,^\([^/]\),${OBJTOP}/\1,' | 119.elif ${META2DEPS:E} == "sh" 120META2DEPS_CMD = ${_time} ${_sh_x} ${META2DEPS} OBJTOP=${_OBJTOP} 121.else 122META2DEPS_CMD ?= ${META2DEPS} 123.endif 124 125.if ${TARGET_OBJ_SPEC:U${MACHINE}} != ${MACHINE} 126META2DEPS_CMD += -T ${TARGET_OBJ_SPEC} 127.endif 128META2DEPS_CMD += \ 129 -R ${RELDIR} -H ${HOST_TARGET} \ 130 ${M2D_OBJROOTS:O:u:@o@-O $o@} 131 132 133M2D_OBJROOTS += ${OBJTOP} ${_OBJROOT} ${_objroot} 134.if defined(SB_OBJROOT) 135M2D_OBJROOTS += ${SB_OBJROOT} 136.endif 137.if ${.MAKE.DEPENDFILE_PREFERENCE:U${.MAKE.DEPENDFILE}:M*.${MACHINE}} == "" 138# meta2deps.py only groks objroot 139# so we need to give it what it expects 140# and tell it not to add machine qualifiers 141META2DEPS_ARGS += MACHINE=none 142.endif 143.if defined(SB_BACKING_SB) 144META2DEPS_CMD += -S ${SB_BACKING_SB}/src 145M2D_OBJROOTS += ${SB_BACKING_SB}/${SB_OBJPREFIX} 146.endif 147 148# we are only interested in the dirs 149# sepecifically those we read something from. 150# we canonicalize them to keep things simple 151# if we are using a split-fs sandbox, it gets a little messier. 152_objtop := ${_OBJTOP:tA} 153dir_list != cd ${_OBJDIR} && \ 154 ${META2DEPS_CMD} MACHINE=${MACHINE} \ 155 SRCTOP=${SRCTOP} RELDIR=${RELDIR} CURDIR=${_CURDIR} \ 156 ${META2DEPS_ARGS} \ 157 ${META_FILES:O:u} | ${META2DEPS_FILTER} ${_skip_gendirdeps} \ 158 sed 's,//*$$,,;s,\.${HOST_TARGET}$$,.host,' 159 160.if ${dir_list:M*ERROR\:*} != "" 161.warning ${dir_list:tW:C,.*(ERROR),\1,} 162.warning Skipping ${_DEPENDFILE:S,${SRCTOP}/,,} 163# we are not going to update anything 164.else 165dpadd_dir_list= 166.if !empty(DPADD) 167_nonlibs := ${DPADD:T:Nlib*:N*include} 168.if !empty(_nonlibs) 169ddep_list = 170.for f in ${_nonlibs:@x@${DPADD:M*/$x}@} 171.if exists($f.dirdep) 172ddep_list += $f.dirdep 173.elif exists(${f:H}.dirdep) 174ddep_list += ${f:H}.dirdep 175.else 176dir_list += ${f:H:tA} 177dpadd_dir_list += ${f:H:tA} 178.endif 179.endfor 180.if !empty(ddep_list) 181ddeps != cat ${ddep_list:O:u} | ${META2DEPS_FILTER} ${_skip_gendirdeps} \ 182 sed 's,//*$$,,;s,\.${HOST_TARGET}$$,.host,;s,\.${MACHINE}$$,,' 183 184.if ${DEBUG_GENDIRDEPS:Uno:@x@${RELDIR:M$x}@} != "" 185.info ${RELDIR}: raw_dir_list='${dir_list}' 186.info ${RELDIR}: ddeps='${ddeps}' 187.endif 188dir_list += ${ddeps} 189.endif 190.endif 191.endif 192 193# DIRDEPS represent things that had to have been built first 194# so they should all be undir OBJTOP. 195# Note that ${_OBJTOP}/bsd/include/machine will get reported 196# to us as $SRCTOP/bsd/sys/$MACHINE_ARCH/include meaning we 197# will want to visit bsd/include 198# so we add 199# ${"${dir_list:M*bsd/sys/${MACHINE_ARCH}/include}":?bsd/include:} 200# to GENDIRDEPS_DIR_LIST_XTRAS 201_objtops = ${OBJTOP} ${_OBJTOP} ${_objtop} 202_objtops := ${_objtops:O:u} 203dirdep_list = \ 204 ${_objtops:@o@${dir_list:M$o*/*:C,$o[^/]*/,,}@} \ 205 ${GENDIRDEPS_DIR_LIST_XTRAS} 206 207# sort longest first 208M2D_OBJROOTS := ${M2D_OBJROOTS:O:u:[-1..1]} 209 210# anything we use from an object dir other than ours 211# needs to be qualified with its .<machine> suffix 212# (we used the pseudo machine "host" for the HOST_TARGET). 213skip_ql= ${SRCTOP}* ${_objtops:@o@$o*@} 214.for o in ${M2D_OBJROOTS:${skip_ql:${M_ListToSkip}}} 215# we need := so only skip_ql to this point applies 216ql.$o := ${dir_list:${skip_ql:${M_ListToSkip}}:M$o*/*/*:C,$o([^/]+)/(.*),\2.\1,:S,.${HOST_TARGET},.host,} 217qualdir_list += ${ql.$o} 218.if ${DEBUG_GENDIRDEPS:Uno:@x@${RELDIR:M$x}@} != "" 219.info ${RELDIR}: o=$o ${ql.$o qualdir_list:L:@v@$v=${$v}@} 220.endif 221skip_ql+= $o* 222.endfor 223 224dirdep_list := ${dirdep_list:O:u} 225qualdir_list := ${qualdir_list:N*.${MACHINE}:O:u} 226 227DIRDEPS = \ 228 ${dirdep_list:N${RELDIR}:N${RELDIR}/*} \ 229 ${qualdir_list:N${RELDIR}.*:N${RELDIR}/*} 230 231# We only consider things below $RELDIR/ if they have a makefile. 232# This is the same test that _DIRDEPS_USE applies. 233# We have do a double test with dirdep_list as it _may_ contain 234# qualified dirs - if we got anything from a stage dir. 235# qualdir_list we know are all qualified. 236# It would be nice do peform this check for all of DIRDEPS, 237# but we cannot assume that all of the tree is present, 238# in fact we can only assume that RELDIR is. 239DIRDEPS += \ 240 ${dirdep_list:M${RELDIR}/*:@d@${.MAKE.MAKEFILE_PREFERENCE:@m@${exists(${SRCTOP}/$d/$m):?$d:${exists(${SRCTOP}/${d:R}/$m):?$d:}}@}@} \ 241 ${qualdir_list:M${RELDIR}/*:@d@${.MAKE.MAKEFILE_PREFERENCE:@m@${exists(${SRCTOP}/${d:R}/$m):?$d:}@}@} 242 243DIRDEPS := ${DIRDEPS:${GENDIRDEPS_FILTER:UNno:ts:}:O:u} 244 245.if ${DEBUG_GENDIRDEPS:Uno:@x@${RELDIR:M$x}@} != "" 246.info ${RELDIR}: M2D_OBJROOTS=${M2D_OBJROOTS} 247.info ${RELDIR}: dir_list='${dir_list}' 248.info ${RELDIR}: dpadd_dir_list='${dpadd_dir_list}' 249.info ${RELDIR}: dirdep_list='${dirdep_list}' 250.info ${RELDIR}: qualdir_list='${qualdir_list}' 251.info ${RELDIR}: SKIP_GENDIRDEPS='${SKIP_GENDIRDEPS}' 252.info ${RELDIR}: GENDIRDEPS_FILTER='${GENDIRDEPS_FILTER}' 253.info ${RELDIR}: FORCE_DPADD='${DPADD}' 254.info ${RELDIR}: DIRDEPS='${DIRDEPS}' 255.endif 256 257# SRC_DIRDEPS is for checkout logic 258src_dirdep_list = \ 259 ${dir_list:M${SRCTOP}/*:S,${SRCTOP}/,,} 260 261SRC_DIRDEPS = \ 262 ${src_dirdep_list:N${RELDIR}:N${RELDIR}/*:C,(/h)/.*,,} 263 264SRC_DIRDEPS := ${SRC_DIRDEPS:${GENDIRDEPS_SRC_FILTER:UN/*:ts:}:O:u} 265 266# if you want to capture SRC_DIRDEPS in .MAKE.DEPENDFILE put 267# SRC_DIRDEPS_FILE = ${_DEPENDFILE} 268# in local.gendirdeps.mk 269.if ${SRC_DIRDEPS_FILE:Uno:tl} != "no" 270ECHO_SRC_DIRDEPS = echo 'SRC_DIRDEPS = \'; echo '${SRC_DIRDEPS:@d@ $d \\${.newline}@}'; echo; 271 272.if ${SRC_DIRDEPS_FILE:T} == ${_DEPENDFILE:T} 273_include_src_dirdeps = ${ECHO_SRC_DIRDEPS} 274.else 275all: ${SRC_DIRDEPS_FILE} 276.if !target(${SRC_DIRDEPS_FILE}) 277${SRC_DIRDEPS_FILE}: ${META_FILES} ${_this} ${META2DEPS} 278 @(${ECHO_SRC_DIRDEPS}) > $@ 279.endif 280.endif 281.endif 282_include_src_dirdeps ?= 283 284all: ${_DEPENDFILE} 285 286# if this is going to exist it would be there by now 287.if !exists(.depend) 288CAT_DEPEND = /dev/null 289.endif 290CAT_DEPEND ?= .depend 291 292.if !empty(_DIRDEPS) && ${DIRDEPS} != ${_DIRDEPS} 293# we may have changed a filter 294.PHONY: ${_DEPENDFILE} 295.endif 296 297# 'cat .depend' should suffice, but if we are mixing build modes 298# .depend may contain things we don't want. 299# The sed command at the end of the stream, allows for the filters 300# to output _{VAR} tokens which we will turn into proper ${VAR} references. 301${_DEPENDFILE}: ${CAT_DEPEND:M.depend} ${META_FILES:O:u:@m@${exists($m):?$m:}@} ${_this} ${META2DEPS} 302 @(echo '# Autogenerated - do NOT edit!'; echo; \ 303 echo 'DEP_RELDIR := $${_PARSEDIR:S,$${SRCTOP}/,,}'; echo; \ 304 echo 'DIRDEPS = \'; \ 305 echo '${DIRDEPS:@d@ $d \\${.newline}@}'; echo; \ 306 ${_include_src_dirdeps} \ 307 echo '.include <dirdeps.mk>'; \ 308 echo; \ 309 echo '.if $${DEP_RELDIR} == $${_DEP_RELDIR}'; \ 310 echo '# local dependencies - needed for -jN in clean tree'; \ 311 [ -s ${CAT_DEPEND} ] && { grep : ${CAT_DEPEND} | grep -v '[/\\]'; }; \ 312 echo '.endif' ) | sed 's,_\([{(]\),$$\1,g' > $@.new${.MAKE.PID} 313 @${InstallNew}; InstallNew -s $@.new${.MAKE.PID} 314 315.endif # meta2deps failed 316.elif !empty(SUBDIR) 317 318DIRDEPS := ${SUBDIR:S,^,${RELDIR}/,:O:u} 319 320all: ${_DEPENDFILE} 321 322${_DEPENDFILE}: ${MAKEFILE} ${_this} 323 @(echo '# Autogenerated - do NOT edit!'; echo; \ 324 echo 'DEP_RELDIR := $${_PARSEDIR:S,$${SRCTOP}/,,}'; echo; \ 325 echo 'DIRDEPS = \'; \ 326 echo '${DIRDEPS:@d@ $d \\${.newline}@}'; echo; \ 327 echo '.include <dirdeps.mk>'; \ 328 echo ) | sed 's,_\([{(]\),$$\1,g' > $@.new 329 @${InstallNew}; InstallNew $@.new 330 331.else 332 333# nothing to do 334all ${_DEPENDFILE}: 335 336.endif 337${_DEPENDFILE}: .PRECIOUS 338