share/mk/gendirdeps.mk

   1 # $Id: gendirdeps.mk,v 1.33 2016/10/11 22:37:28 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
  48 all:
  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
  70 META_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
  81 META_FILES := ${META_FILES:T:O:u}
  82 .export META_FILES
  83
  84 # pickup customizations
  85 .-include <local.gendirdeps.mk>
  86
  87 # these are actually prefixes that we'll skip
  88 # they should all be absolute paths
  89 SKIP_GENDIRDEPS ?=
  90 .if !empty(SKIP_GENDIRDEPS)
  91 _skip_gendirdeps = egrep -v '^(${SKIP_GENDIRDEPS:O:u:ts|})' |
  92 .else
  93 _skip_gendirdeps =
  94 .endif
  95
  96 # Below we will turn _{VAR} into ${VAR} which keeps this simple
  97 # GENDIRDEPS_FILTER_DIR_VARS is a list of dirs to be substiuted for.
  98 # GENDIRDEPS_FILTER_VARS is more general.
  99 # In each case order matters.
 100 .if !empty(GENDIRDEPS_FILTER_DIR_VARS)
 101 GENDIRDEPS_FILTER += ${GENDIRDEPS_FILTER_DIR_VARS:@v@S,${$v},_{${v}},@}
 102 .endif
 103 .if !empty(GENDIRDEPS_FILTER_VARS)
 104 GENDIRDEPS_FILTER += ${GENDIRDEPS_FILTER_VARS:@v@S,/${$v}/,/_{${v}}/,@:NS,//,*:u}
 105 .endif
 106
 107 # this (*should* be set in meta.sys.mk)
 108 # is the script that extracts what we want.
 109 META2DEPS ?= ${.PARSEDIR}/meta2deps.sh
 110 META2DEPS := ${META2DEPS}
 111
 112 .if ${DEBUG_GENDIRDEPS:Uno:@x@${RELDIR:M$x}@} != "" && ${DEBUG_GENDIRDEPS:Uno:Mmeta2d*} != ""
 113 _time = time
 114 _sh_x = sh -x
 115 _py_d = -ddd
 116 .else
 117 _time =
 118 _sh_x =
 119 _py_d =
 120 .endif
 121
 122 .if ${META2DEPS:E} == "py"
 123 # we can afford to do this all the time.
 124 DPDEPS ?= no
 125 META2DEPS_CMD = ${_time} ${PYTHON} ${META2DEPS} ${_py_d}
 126 .if ${DPDEPS:tl} != "no"
 127 META2DEPS_CMD += -D ${DPDEPS}
 128 .endif
 129 META2DEPS_FILTER = sed 's,^src:,${SRCTOP}/,;s,^\([^/]\),${OBJTOP}/\1,' |
 130 .elif ${META2DEPS:E} == "sh"
 131 META2DEPS_CMD = ${_time} ${_sh_x} ${META2DEPS} OBJTOP=${_OBJTOP}
 132 .else
 133 META2DEPS_CMD ?= ${META2DEPS}
 134 .endif
 135
 136 .if ${TARGET_OBJ_SPEC:U${MACHINE}} != ${MACHINE}
 137 META2DEPS_CMD += -T ${TARGET_OBJ_SPEC}
 138 .endif
 139 META2DEPS_CMD += \
 140         -R ${RELDIR} -H ${HOST_TARGET} \
 141         ${M2D_OBJROOTS:O:u:@o@-O $o@} \
 142         ${M2D_EXCLUDES:O:u:@o@-X $o@} \
 143
 144
 145 M2D_OBJROOTS += ${OBJTOP} ${_OBJROOT} ${_objroot}
 146 .if defined(SB_OBJROOT)
 147 M2D_OBJROOTS += ${SB_OBJROOT}
 148 .endif
 149 .if defined(STAGE_ROOT)
 150 M2D_OBJROOTS += ${STAGE_ROOT}
 151 .endif
 152 .if ${.MAKE.DEPENDFILE_PREFERENCE:U${.MAKE.DEPENDFILE}:M*.${MACHINE}} == ""
 153 # meta2deps.py only groks objroot
 154 # so we need to give it what it expects
 155 # and tell it not to add machine qualifiers
 156 META2DEPS_ARGS += MACHINE=none
 157 .endif
 158 .if defined(SB_BACKING_SB)
 159 META2DEPS_CMD += -S ${SB_BACKING_SB}/src
 160 M2D_OBJROOTS += ${SB_BACKING_SB}/${SB_OBJPREFIX}
 161 .endif
 162
 163 # we are only interested in the dirs
 164 # specifically those we read something from.
 165 # we canonicalize them to keep things simple
 166 # if we are using a split-fs sandbox, it gets a little messier.
 167 _objtop := ${_OBJTOP:tA}
 168 dir_list != cd ${_OBJDIR} && \
 169         ${META2DEPS_CMD} MACHINE=${MACHINE} \
 170         SRCTOP=${SRCTOP} RELDIR=${RELDIR} CURDIR=${_CURDIR} \
 171         ${META2DEPS_ARGS} \
 172         ${META_FILES:O:u} | ${META2DEPS_FILTER} ${_skip_gendirdeps} \
 173         sed 's,//*$$,,;s,\.${HOST_TARGET}$$,.host,'
 174
 175 .if ${dir_list:M*ERROR\:*} != ""
 176 .warning ${dir_list:tW:C,.*(ERROR),\1,}
 177 .warning Skipping ${_DEPENDFILE:S,${SRCTOP}/,,}
 178 # we are not going to update anything
 179 .else
 180 dpadd_dir_list=
 181 .if !empty(DPADD)
 182 _nonlibs := ${DPADD:T:Nlib*:N*include}
 183 .if !empty(_nonlibs)
 184 ddep_list =
 185 .for f in ${_nonlibs:@x@${DPADD:M*/$x}@}
 186 .if exists($f.dirdep)
 187 ddep_list += $f.dirdep
 188 .elif exists(${f:H}.dirdep)
 189 ddep_list += ${f:H}.dirdep
 190 .else
 191 dir_list += ${f:H:tA}
 192 dpadd_dir_list += ${f:H:tA}
 193 .endif
 194 .endfor
 195 .if !empty(ddep_list)
 196 ddeps != cat ${ddep_list:O:u} | ${META2DEPS_FILTER} ${_skip_gendirdeps} \
 197         sed 's,//*$$,,;s,\.${HOST_TARGET}$$,.host,;s,\.${MACHINE}$$,,'
 198
 199 .if ${DEBUG_GENDIRDEPS:Uno:@x@${RELDIR:M$x}@} != ""
 200 .info ${RELDIR}: raw_dir_list='${dir_list}'
 201 .info ${RELDIR}: ddeps='${ddeps}'
 202 .endif
 203 dir_list += ${ddeps}
 204 .endif
 205 .endif
 206 .endif
 207
 208 # DIRDEPS represent things that had to have been built first
 209 # so they should all be undir OBJTOP.
 210 # Note that ${_OBJTOP}/bsd/include/machine will get reported
 211 # to us as $SRCTOP/bsd/sys/$MACHINE_ARCH/include meaning we
 212 # will want to visit bsd/include
 213 # so we add
 214 # ${"${dir_list:M*bsd/sys/${MACHINE_ARCH}/include}":?bsd/include:}
 215 # to GENDIRDEPS_DIR_LIST_XTRAS
 216 _objtops = ${OBJTOP} ${_OBJTOP} ${_objtop}
 217 _objtops := ${_objtops:O:u}
 218 dirdep_list = \
 219         ${_objtops:@o@${dir_list:M$o*/*:C,$o[^/]*/,,}@} \
 220         ${GENDIRDEPS_DIR_LIST_XTRAS}
 221
 222 # sort longest first
 223 M2D_OBJROOTS := ${M2D_OBJROOTS:O:u:[-1..1]}
 224
 225 # anything we use from an object dir other than ours
 226 # needs to be qualified with its .<machine> suffix
 227 # (we used the pseudo machine "host" for the HOST_TARGET).
 228 skip_ql= ${SRCTOP}* ${_objtops:@o@$o*@}
 229 .for o in ${M2D_OBJROOTS:${skip_ql:${M_ListToSkip}}}
 230 # we need := so only skip_ql to this point applies
 231 ql.$o := ${dir_list:${skip_ql:${M_ListToSkip}}:M$o*/*/*:C,$o([^/]+)/(.*),\2.\1,:S,.${HOST_TARGET},.host,}
 232 qualdir_list += ${ql.$o}
 233 .if ${DEBUG_GENDIRDEPS:Uno:@x@${RELDIR:M$x}@} != ""
 234 .info ${RELDIR}: o=$o ${ql.$o qualdir_list:L:@v@$v=${$v}@}
 235 .endif
 236 skip_ql+= $o*
 237 .endfor
 238
 239 dirdep_list := ${dirdep_list:O:u}
 240 qualdir_list := ${qualdir_list:N*.${MACHINE}:O:u}
 241
 242 DIRDEPS = \
 243         ${dirdep_list:N${RELDIR}:N${RELDIR}/*} \
 244         ${qualdir_list:N${RELDIR}.*:N${RELDIR}/*}
 245
 246 # We only consider things below $RELDIR/ if they have a makefile.
 247 # This is the same test that _DIRDEP_USE applies.
 248 # We have do a double test with dirdep_list as it _may_ contain
 249 # qualified dirs - if we got anything from a stage dir.
 250 # qualdir_list we know are all qualified.
 251 # It would be nice do peform this check for all of DIRDEPS,
 252 # but we cannot assume that all of the tree is present,
 253 # in fact we can only assume that RELDIR is.
 254 DIRDEPS += \
 255         ${dirdep_list:M${RELDIR}/*:@d@${.MAKE.MAKEFILE_PREFERENCE:@m@${exists(${SRCTOP}/$d/$m):?$d:${exists(${SRCTOP}/${d:R}/$m):?$d:}}@}@} \
 256         ${qualdir_list:M${RELDIR}/*:@d@${.MAKE.MAKEFILE_PREFERENCE:@m@${exists(${SRCTOP}/${d:R}/$m):?$d:}@}@}
 257
 258 DIRDEPS := ${DIRDEPS:${GENDIRDEPS_FILTER:UNno:ts:}:C,//+,/,g:O:u}
 259
 260 .if ${DEBUG_GENDIRDEPS:Uno:@x@${RELDIR:M$x}@} != ""
 261 .info ${RELDIR}: M2D_OBJROOTS=${M2D_OBJROOTS}
 262 .info ${RELDIR}: M2D_EXCLUDES=${M2D_EXCLUDES}
 263 .info ${RELDIR}: dir_list='${dir_list}'
 264 .info ${RELDIR}: dpadd_dir_list='${dpadd_dir_list}'
 265 .info ${RELDIR}: dirdep_list='${dirdep_list}'
 266 .info ${RELDIR}: qualdir_list='${qualdir_list}'
 267 .info ${RELDIR}: SKIP_GENDIRDEPS='${SKIP_GENDIRDEPS}'
 268 .info ${RELDIR}: GENDIRDEPS_FILTER='${GENDIRDEPS_FILTER}'
 269 .info ${RELDIR}: FORCE_DPADD='${DPADD}'
 270 .info ${RELDIR}: DIRDEPS='${DIRDEPS}'
 271 .endif
 272
 273 # SRC_DIRDEPS is for checkout logic
 274 src_dirdep_list = \
 275         ${dir_list:M${SRCTOP}/*:S,${SRCTOP}/,,}
 276
 277 SRC_DIRDEPS = \
 278         ${src_dirdep_list:N${RELDIR}:N${RELDIR}/*:C,(/h)/.*,,}
 279
 280 SRC_DIRDEPS := ${SRC_DIRDEPS:${GENDIRDEPS_SRC_FILTER:UN/*:ts:}:C,//+,/,g:O:u}
 281
 282 # if you want to capture SRC_DIRDEPS in .MAKE.DEPENDFILE put
 283 # SRC_DIRDEPS_FILE = ${_DEPENDFILE}
 284 # in local.gendirdeps.mk
 285 .if ${SRC_DIRDEPS_FILE:Uno:tl} != "no"
 286 ECHO_SRC_DIRDEPS = echo 'SRC_DIRDEPS = \'; echo '${SRC_DIRDEPS:@d@      $d \\${.newline}@}'; echo;
 287
 288 .if ${SRC_DIRDEPS_FILE:T} == ${_DEPENDFILE:T}
 289 _include_src_dirdeps = ${ECHO_SRC_DIRDEPS}
 290 .else
 291 all: ${SRC_DIRDEPS_FILE}
 292 .if !target(${SRC_DIRDEPS_FILE})
 293 ${SRC_DIRDEPS_FILE}: ${META_FILES} ${_this} ${META2DEPS}
 294         @(${ECHO_SRC_DIRDEPS}) > $@
 295 .endif
 296 .endif
 297 .endif
 298 _include_src_dirdeps ?=
 299
 300 all:    ${_DEPENDFILE}
 301
 302 # if this is going to exist it would be there by now
 303 .if !exists(.depend)
 304 CAT_DEPEND = /dev/null
 305 .endif
 306 CAT_DEPEND ?= .depend
 307
 308 .if !empty(_DIRDEPS) && ${DIRDEPS} != ${_DIRDEPS}
 309 # we may have changed a filter
 310 .PHONY: ${_DEPENDFILE}
 311 .endif
 312
 313 # 'cat .depend' should suffice, but if we are mixing build modes
 314 # .depend may contain things we don't want.
 315 # The sed command at the end of the stream, allows for the filters
 316 # to output _{VAR} tokens which we will turn into proper ${VAR} references.
 317 ${_DEPENDFILE}: .NOMETA ${CAT_DEPEND:M.depend} ${META_FILES:O:u:@m@${exists($m):?$m:}@} ${_this} ${META2DEPS}
 318         @(${GENDIRDEPS_HEADER} echo '# Autogenerated - do NOT edit!'; echo; \
 319         echo 'DIRDEPS = \'; \
 320         echo '${DIRDEPS:@d@     $d \\${.newline}@}'; echo; \
 321         ${_include_src_dirdeps} \
 322         echo '.include <dirdeps.mk>'; \
 323         echo; \
 324         echo '.if $${DEP_RELDIR} == $${_DEP_RELDIR}'; \
 325         echo '# local dependencies - needed for -jN in clean tree'; \
 326         [ -s ${CAT_DEPEND} ] && { grep : ${CAT_DEPEND} | grep -v '[/\\]'; }; \
 327         echo '.endif' ) | sed 's,_\([{(]\),$$\1,g' > $@.new${.MAKE.PID}
 328         @${InstallNew}; InstallNew -s $@.new${.MAKE.PID}
 329
 330 .endif                          # meta2deps failed
 331 .elif !empty(SUBDIR)
 332
 333 DIRDEPS := ${SUBDIR:S,^,${RELDIR}/,:O:u}
 334
 335 all:    ${_DEPENDFILE}
 336
 337 ${_DEPENDFILE}: .NOMETA ${MAKEFILE} ${_this}
 338         @(${GENDIRDEPS_HEADER} echo '# Autogenerated - do NOT edit!'; echo; \
 339         echo 'DIRDEPS = \'; \
 340         echo '${DIRDEPS:@d@     $d \\${.newline}@}'; echo; \
 341         echo '.include <dirdeps.mk>'; \
 342         echo ) | sed 's,_\([{(]\),$$\1,g' > $@.new
 343         @${InstallNew}; InstallNew $@.new
 344
 345 .else
 346
 347 # nothing to do
 348 all ${_DEPENDFILE}:
 349
 350 .endif
 351 ${_DEPENDFILE}: .PRECIOUS